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  • The field of regenerative medicine is experiencing significant advancements and has the potential to transform healthcare by offering novel treatments, repairing damaged tissues and organs, and improving patients' quality of life
  • Key technologies shaping its future include stem cell research, tissue engineering, electro-stimulation, gene therapy, organ regeneration, 3D bioprinting, and nanotechnology
  • The progress of these technologies varies, raising the question of which will dominate the field in the next decade
  • Convergence of these technologies will play a pivotal role in transforming regenerative medicine
  • Advantages and challenges exist for each technology, and dominance will depend on scientific breakthroughs, clinical success, regulations, and patient acceptance
  • MedTech companies must intensify their R&D efforts in regenerative medicine to remain relevant
  • Collaboration between disciplines, institutions, and industry partners is crucial
  • Staying informed about emerging trends and breakthroughs is essential
  • Proactively identifying synergies and areas of collaboration can accelerate progress
  • MedTechs can actively shape the future of regenerative medicine by exploring and integrating evolving technologies
 
The Future of Regenerative Medicine
Navigating Evolving Technologies and the Imperative for MedTech Companies
 
In the rapidly evolving realm of modern medicine, regenerative medicine has emerged as a transformative and powerful force. With several innovative developments at its core, it has the potential to change our approach to healing and restoration. The long-awaited promise of personalized, curative, and transformative therapies appears to be within reach, giving hope to patients who have been waiting for breakthroughs.
 
Over the past decade, this broad field of medicine has witnessed significant developments, with various technologies emerging as promising avenues for medical innovation. Stem cell research, tissue engineering, electro-stimulation, gene therapy, organ regeneration, 3D bioprinting, and nanotechnology have all demonstrated their potential in addressing complex medical conditions. However, these technologies are progressing at different rates, and are often used complementarily, giving rise to a key strategic question for MedTechs investing in regenerative medicine research and development (R&D): Which technology or combination of regenerative medicine technologies will ultimately dominate the field in the next decade?
 
As this market segment gains momentum, it seems reasonable to suggest that many MedTechs have yet to fully grasp the magnitude and pace of these technological developments. To establish a presence or expand their footprint in this arena, companies must intensify their R&D efforts and monitor developments across the full range of these technologies to ensure they are not caught off guard. Time is of the essence, and those who fail to recognize this, risk being left behind.
 
Regenerative medicine

Regenerative medicine encompasses a broad range of approaches aimed at repairing, replacing, or regenerating damaged or diseased tissues and organs in the body. It draws upon principles from biology, engineering, and other scientific disciplines to restore both the structure and function of compromised tissues and organs. The concept underlying regenerative medicine involves utilizing the body's innate healing mechanisms to facilitate tissue repair and regeneration. This incorporates various techniques used either independently or together, and include stem cell therapy, tissue engineering, electro-stimulation, gene therapy, organ regeneration, 3D bioprinting, and nanotechnology, which either stimulate the body's natural regenerative processes or provide external support for tissue regeneration.
 
Brief history

Regenerative medicine has a rich history, driven by humanity's quest to heal and restore damaged tissues and organs. From ancient civilizations to modern times, medical science has continually evolved, seeking solutions to overcome the limitations of conventional treatments. This pursuit has given rise to the field of regenerative medicine. Early healers in ancient civilizations explored various remedies and techniques to promote tissue repair, ranging from herbal medicines to primitive surgical interventions. These practices laid the groundwork for our understanding of the body's inherent regenerative capacity.
 
In the 20th century, scientific advancements began unlocking new possibilities. The discovery of stem cells in the 1960s marked a breakthrough, revealing a versatile cell population capable of self-renewal and differentiation into specialized cell types. This discovery represented a paradigm shift in medical research and served as the foundation for modern regenerative medicine. The isolation and cultivation of human embryonic stem cells in the early 2000s was a significant milestone, offering potential for regenerative therapies. However, ethical concerns surrounding their use prompted scientists to search for alternative approaches. This led to the discovery of induced pluripotent stem cells (iPSCs) in 2006, which could be derived from adult cells and reprogrammed to resemble embryonic stem cells, thus bypassing the ethical concerns.
 
In recent years, regenerative medicine has experienced a surge of new and rapidly evolving medical technologies. Tissue engineering, biomaterials, gene editing techniques [a method for making specific changes to the DNA of a cell or organism], and advanced imaging modalities have impacted the field, enabling the creation of 3D tissue constructs, the bioengineering of organs, and direct tissue regeneration within the body. Regenerative medicine has expanded beyond traditional approaches, encompassing a wide range of therapeutic strategies, including cell-based therapies, gene therapies, electro-stimulation, and the utilization of growth factors and biomaterials. This multidisciplinary approach, leveraging the expertise of scientists, bioengineers, and clinicians, aims to develop transformative therapies for previously untreatable conditions. 
 
In this Commentary

This Commentary explores the rapidly evolving technologies that have propelled regenerative medicine to the forefront of medical research and their potential implications for the future of healthcare. We describe the contributions to regenerative medicine of stem cell research, tissue engineering, electro-stimulation, gene therapy, organ regeneration, 3D bio printing, and nanotechnology. The Commentary discusses some of the challenges and ethical considerations facing the field and draws attention to governments actively pursuing regenerative medicine R&D. We stress that technologies, which contribute to this field are progressing at different rates and are often used complementarily. This raises a strategic question for MedTechs investing in regenerative medicine R&D: “Which technology or combination of regenerative technologies will ultimately dominate the field in the next decade?”. Answering this question should provide MedTechs, either contemplating entering this market segment or with established regenerative medicine franchises, with insights to guide their strategic decision-making and to assist in their long-term success in this rapidly evolving field.
 
Stem cell research

Stem cell research has changed regenerative medicine, opening new possibilities for tissue repair and disease treatment. One significant advancement is the development of Induced Pluripotent Stem Cells (iPSCs). These are created by reprogramming adult cells and can differentiate into any cell type, making them invaluable for personalized therapies. Unlike embryonic stem cells, iPSCs alleviate ethical concerns. However, ethical issues related to human cloning persist (see below). Nonetheless, iPSCs serve as a crucial tool, offering safer and more efficient techniques for studying diseases, screening drugs, and developing personalized therapies. They also enable the replacement of damaged cells and the creation of functional tissues and organs, providing opportunities for organ transplantation and personalized tissue replacement treatments. Researchers have also achieved success in transdifferentiation, rapidly generating desired cell types for regenerative and transplantation therapies. The gene-editing tool CRISPR-Cas9, (see below), further enhances stem cell research by allowing precise modifications for disease correction and improved traits. Clinical trials have demonstrated the potential of stem cell-based therapies in various areas, including spinal cord injuries, neurodegenerative disorders, heart disease, blood disorders, and diabetes. Advancements in bioengineering and microfluidics have further improved stem cell growth and differentiation, bringing us closer to fully harnessing the power of stem cell-based regenerative medicine.
 
Several companies and research institutions have made contributions to stem cell R&D. Mesoblast, an Australian biopharmaceutical company founded in 2004, focuses on developing cellular medicines based on mesenchymal lineage adult stem cells. They are actively involved in creating regenerative therapies for cardiovascular diseases, orthopedic disorders, and immune-mediated inflammatory diseases. Novartis, a Swiss pharmaceutical company, has made substantial investments in stem cell research and is dedicated to developing treatments for conditions such as macular degeneration and heart failure. Cellular Dynamics International (CDI), a biotech based in Japan and a subsidiary of Fujifilm, specializes in producing human iPSCs for use in drug discovery, toxicity testing, and disease modeling. Athersys, a biotech based in Cleveland, Ohio, US, focuses on developing innovative stem cell-based therapies. Their leading offering, MultiStem®, is a patented, adult-derived stem cell therapy platform designed to treat various disease states, including neurological disorders, cardiovascular diseases, and inflammatory conditions. Athersys has received Fast Track designations from the US Food and Drug Administration (FDA) for acute respiratory distress syndrome (ARDS), stroke, and transplant support. In 2022, Vertex Pharmaceuticals, based in Boston, US, acquired ViaCyte, a US biotech, for US$320m in cash. ViaCyte specializes in delivering novel stem cell-derived cell replacement therapies as a functional cure for type 1 diabetes (T1D). This acquisition provides Vertex with additional human stem cell lines, intellectual property related to stem cell differentiation, and manufacturing facilities for cell-based therapies, which can accelerate the company's T1D programmes. ReNeuron, a UK-based biotech focuses on developing cell-based therapies, for conditions like stroke disability, retinal diseases, and peripheral limb ischemia. Osiris Therapeutics, founded in 1993, developed Grafix®, a cryopreserved placental membrane used for wound healing and tissue repair. In 2019, the company was acquired by Smith & Nephew plc, a global medical technology business, for US$660m.
 
Tissue Engineering

Tissue engineering is a field that combines biology, engineering, and medicine to create functional tissues and organs. It has made advancements recently, such as the development of organoids used for studying diseases and personalized medicine. Biomaterials, like hydrogels, nanofibers, and 3D-printed scaffolds, play a role by providing support for cell growth. One challenge tissue engineering faces is creating blood vessels to ensure the tissues receive enough nutrients and oxygen. Researchers are using techniques like 3D bioprinting (see below), to create networks of tiny blood vessels within engineered tissues. 3D bioprinting allows for precise placement of cells and materials to create complex tissue structures. Decellularization, which removes cellular components from donor organs and replaces them with patient-specific cells, has also been successful in organ regeneration. Microfluidics and organs-on-a-chip platforms are used to mimic organ functions for studying diseases and testing drugs. Gene editing technologies like CRISPR-Cas9 (see below) show promise for modifying cells, enhancing tissue regeneration, and correcting genetic disorders.
Tissue engineering has achieved successes in various areas. Bladder tissues, tracheal replacements, skin substitutes, cartilage constructs, and liver models are some examples. In 1999, scientists successfully engineered and implanted bladder tissues in patients with bladder disease. In 2008, a tissue-engineered trachea was successfully implanted in a patient with a damaged airway. Tissue-engineered skin is commonly used for treating burn injuries, and advanced skin substitutes that closely resemble natural skin. Cartilage constructs show promise for repairing joints, and miniaturized liver models mimic liver function for drug testing. While these developments are promising, further research and clinical trials are needed to refine and expand the applications of tissue engineering in medical practice.



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Tissue Regenix, a UK-based company, that was spun out of the University of Leeds in 2006, employs decellularization and extracellular matrix technologies to create a range of products for wound care and orthopedic applications. Vericel, a Nasdaq traded US biotech based in Cambridge, Massachusetts, is focused on the development and commercialization of cell-based therapies. Its products include MACI [autologous cultured chondrocytes on porcine collagen membrane] for the repair of cartilage defects in the knee and Epicel [cultured epidermal autografts] for the treatment of severe burns. Medtronic, a giant American MedTech, has moved into regenerative medicine with the  acquisition of MiroSurge AG, a Swiss company working on tissue engineering. Medtronic aims to develop regenerative therapies for the treatment of conditions like degenerative disc disease. Stryker, an American MedTech involved in orthopedics and tissue engineering, has a presence in the regenerative medicine through its subsidiary, Sage Products, which focuses on the development of advanced wound care and regenerative products.
 
Electro-stimulation

Electro-stimulation, also known as electrical stimulation or electrotherapy, offers a non-invasive and safe method to enhance tissue regeneration and repair. It involves the use of specialized devices that deliver controlled electrical impulses to specific areas of the body. While electro-stimulation has a range of applications in medicine, one area where it shows promise is in tissue regeneration and enhancing the body's ability to heal itself. A common application is for the stimulation of nerves and muscles. Applying electrical currents to these tissues can restore or improve their function. For instance, in patients with nerve damage or muscle weakness, the technology can help to reactivate the nerves or strengthen the muscles, leading to improved mobility and functionality. Electrotherapy also promotes tissue healing and regeneration by enhancing cellular activity. Electrical currents can stimulate the production of growth factors, which are substances that promote cell growth and tissue repair. Additionally, the therapy can increase blood flow to a treated area, bringing oxygen and nutrients that are essential for tissue healing. In some cases, electro-stimulation is used in combination with other regenerative therapies, such as stem cell treatments. Electrical currents can help guide and enhance the differentiation and integration of stem cells into damaged tissues thereby accelerating the healing process. While further research is still needed to fully understand its mechanisms and optimize its use, electro-stimulation holds potential for improving outcomes in regenerative medicine and helping patients recover from various injuries and conditions.
 
Several MedTechs are involved in electro-stimulation R&D for regenerative medicine. Medtronic has developed neurostimulation systems to manage chronic pain and improve neurological functions, which also can be used in regenerative medicine applications, such as nerve and muscle regeneration. Abbott Laboratories have made contributions to electro-stimulation devices for regenerative medicine. Their product portfolio includes implantable neurostimulation systems to manage chronic pain, movement disorders, and other neurological conditions and can aid in the regeneration of damaged nerves and muscles. Boston Scientific has developed a range of electrical stimulation systems for various applications, including chronic pain management, deep brain stimulation for movement disorders, and spinal cord stimulation, and can potentially contribute to regenerative medicine by stimulating tissue healing and facilitating the regeneration process. Nevro Corp specializes in the development of high-frequency spinal cord stimulation systems for chronic pain management. Their devices deliver electrical pulses to the spinal cord, modulating pain signals and providing relief to patients, and have the potential to aid in regenerative medicine by promoting tissue healing. Bioventus, established in 2012 and based Durham, North Carolina, US, is focused on ortho-biologic solutions for musculoskeletal healing. The company has developed a portable electro-stimulation device called the Exogen Ultrasound Bone Healing System, which has shown efficacy in promoting bone regeneration and is used in various clinical settings.


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Gene therapies

Gene Editing

Gene editing is a field of research that holds potential to change regenerative medicine. At its forefront is CRISPR-Cas9, a powerful tool that allows scientists to make precise modifications to our genetic material. By combining gene editing with gene therapy, new avenues for treating genetic disorders and diseases can be explored. CRISPR-Cas9, derived from bacteria, acts like molecular scissors, enabling researchers to modify specific genes efficiently and cost-effectively, which means they can introduce beneficial changes, remove, or replace faulty genes, and correct genetic mutations.
Gene therapy, a key component of regenerative medicine, involves introducing functional genes into a patient's cells to compensate for defective or absent genes that cause specific disorders. There are two primary approaches to gene therapy: in vivo, which delivers therapeutic genes directly into the patient's body, and ex vivo, which modifies the patient's cells outside the body before reintroducing them.

Gene therapy has shown success in treating Leber Congenital Amaurosis (LCA), a rare disorder causing vision loss in children. Luxturna, the first FDA approved gene therapy for LCA, delivers a functional copy of the RPE65 gene into retinal cells, restoring vision in patients. Another example is gene therapy for Severe Combined Immunodeficiency (SCID), also known as "bubble boy disease". By using a modified retrovirus, this treatment restores immune function in infants with SCID caused by a deficiency in the enzyme adenosine deaminase. Promising results have also been observed in the treatment of inherited blood disorders such as Beta-Thalassemia and sickle cell disease, both caused by mutations in the hemoglobin genes. Clinical trials are focused on editing patients' own hematopoietic stem cells to correct these genetic mutations. Despite successes, there are still challenges to overcome, which include improving delivery methods, ensuring long-term safety, managing immune responses, and increasing treatment accessibility.
 
Several companies are engaged in gene therapy R&D. Novartis developed Kymriah, the first FDA-approved gene therapy product. Kymriah utilizes the body's own T cells to fight certain types of leukemia. bluebird bio, another prominent company, focuses on developing gene therapies for severe genetic diseases and cancer. They obtained FDA approval for Zynteglo, a gene therapy used to treat transfusion-dependent beta-thalassemia patients. Spark Therapeutics, known for Luxturna, mentioned above, continues to operate as an independent subsidiary after being acquired by Hoffmann-La Roche. They are actively pursuing gene therapy treatments for inherited retinal diseases and other disorders. uniQure, a Dutch-based company, is a pioneer in gene therapy for rare genetic diseases and has developed Glybera, the first approved gene therapy in Europe. Pfizer, a global pharmaceutical company, has also made substantial investments in gene therapy, acquiring Bamboo Therapeutics, which is focussed on rare diseases related to neuromuscular conditions and the central nervous system. Sangamo Therapeutics, a biotech company based in California, US, specializes in gene editing and gene regulation technologies, with ongoing research in therapies for hemophilia and lysosomal storage disorders.
 
Organ Regeneration

Organ regeneration is a field in regenerative medicine that offers hope for patients in need of new organs. For instance, in the US, currently, there are ~114,000 people waiting for organ transplants, ~60% (70,000) will not receive the organ they need, and each day ~20 people die due to the lack of available organs. Through advancements in bioengineering and organ transplantation techniques, functional organs can now be developed to restore health and enhance quality of life. Stem cells and tissue engineering play a role in creating organs that mimic the structure and function of natural ones. Additionally, innovations in 3D printing and biomaterials have provided solutions for successful organ transplantation.

The liver has shown regenerative capabilities, and surgeons can transplant a portion of a healthy liver into a recipient, enabling regeneration and restoring the organ's function. Researchers have explored approaches to stimulate cardiac regeneration, such as using stem cells and biomaterial scaffolds to repair damaged heart tissue. While these techniques are still in development, they hold promise for treating heart diseases and reducing the burden of heart failure.
 
In the pursuit of overcoming the limitations of traditional organ transplantation, several companies are engaged in organ regeneration R&D. For instance, Miromatrix Medical utilizes decellularization techniques to create fully functional organs and tissues by removing cellular material from donor organs while preserving the extracellular matrix. United Therapeutics and its subsidiary Lung Biotechnology focus on bioengineering lungs using technologies like tissue engineering, stem cell therapy, and gene editing. CellSeed Inc., a Japanese biotech, has developed a technology called "cell sheet engineering" that uses patient-derived cells to promote tissue repair and regeneration.
 
3D Bioprinting

3D bioprinting is a technology in regenerative medicine that facilitates the creation of complex tissue structures with precision and customization. Significant progress in the filed has been made in the past decade, including the development of advanced bio-inks that consist of biocompatible materials and living cells. These bio-inks can be deposited layer by layer, resulting in 3D tissue constructs that closely resemble natural tissues in complexity and functionality. The resolution and speed of 3D printers have also improved, enabling the production of detailed structures at a faster pace. By integrating imaging technologies like MRI and CT scans, patient-specific models can be created, optimizing the design and production of customized implants and prosthetics. One of the key advantages of 3D bioprinting is its ability to recreate intricate tissue structures with vascular networks that ensure nutrient supply and waste removal, which are vital for the survival and functionality of larger constructs. This technology has created new possibilities in personalized medicine, particularly in the development of customized implants and prosthetics. By utilizing patient-specific data, such as medical images, 3D bioprinting can fabricate implants and prosthetics that perfectly fit an individual's anatomy, leading to improved comfort and functionality. Further, biologically active substances like growth factors can be incorporated into the printed structures, allowing for localized and controlled release. This targeted therapy promotes tissue regeneration at the site of implantation.
 

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Several companies have recognized the potential of 3D bioprinting and invested in R&D programmes to advance the field. Organovo, EnvisionTEC, the BICO Group,  Aspect Biosystems, RegenHU, and Poietis are among enterprises driving innovation in 3D bioprinting. They all develop technologies and platforms to create functional human tissues, print biomaterials, offer standardized bio-inks, and provide advanced bio fabrication solutions. Their efforts aim to change regenerative medicine and contribute to the development of functional tissue constructs for therapeutic applications.
Nanotechnology

Nanotechnology has influenced regenerative medicine by enabling precise manipulation of matter at the nanoscale. This technology has led to breakthroughs in targeted drug delivery systems and the development of innovative nanomaterials for tissue regeneration and wound healing. Nanoparticles and nano-carriers, designed through nanotechnology, can encapsulate drugs, and deliver them directly to affected tissues or cells, improving treatment efficacy while minimizing side effects. These targeted drug delivery systems have reduced the required dosages, making treatments more effective and less toxic. The technology has also facilitated the development of advanced nanomaterials like nanostructured scaffolds, which mimic the natural extracellular matrix of tissues, and provide a supportive framework for cell growth and tissue regeneration. With high surface area-to-volume ratio and tunable mechanical properties, nanostructured scaffolds release bioactive compounds or growth factors in a controlled manner, promoting tissue regeneration in various areas like bone, cartilage, nerve, and skin. Additionally, nanotechnology has contributed to the creation of smart wound dressings that actively enhance the wound healing process by exhibiting antimicrobial properties, moisture management, and controlled release of therapeutics.
 
Several companies are involved in nanotechnology R&D for regenerative medicine. Nanobiotix focuses on nanoparticle-based solutions for cancer therapy, while Arrowhead Pharmaceuticals uses a nanoparticle-based delivery system to transport RNA interference (RNAi) therapeutics into target cells. Athersys [a biotech mentioned in the stem cell section above] incorporates nanotechnology-based methods in their allogeneic stem cell product, MultiStem. Capsulution Pharma AG offers customized nanoparticle-based solutions for targeted drug delivery, including applications in tissue engineering and wound healing. Capsulation’s nano capsules are invisible to the human eye. A pin head, which is ~1.5mm across, could contain ~3bn capsules. NanoMedical Systems specializes in implantable drug delivery systems with potential applications in regenerative medicine.
  
Challenges and ethical considerations

It is important to acknowledge the challenges and ethical issues, which accompany the field of regenerative medicine. One of its primary challenges is the complex and intricate nature of the human body. Developing therapies that can effectively repair and regenerate damaged tissues and organs is a daunting task that requires extensive scientific knowledge and technological expertise. The limited understanding of cellular behaviour, tissue interactions, and the intricacies of organ development present significant hurdles in translating regenerative medicine from the laboratory to clinical applications. In addition, regenerative medicine faces ethical considerations. One concern revolves around the use of embryonic stem cells, which are derived from human embryos. The destruction of embryos in the process raises ethical concerns, as it involves the termination of potential human life, which necessitates balancing the pursuit of medical advancements and respecting the moral value attributed to embryos. iPSCs have overcome ethical concerns associated with embryonic stem cells but raise ethical concerns of their own that are associated with their ability to clone humans, which we highlighted in the stem cell section above. Similarly, gene editing technologies like CRISPR-Cas9 have introduced new possibilities for manipulating genes and altering the genetic makeup of organisms, including humans. While gene editing presents significant opportunities for treating genetic diseases, it raises ethical questions about the modification of the germline, hereditary traits, and the potential for unintended consequences. International ethical frameworks need to be established to guide the responsible use of gene editing techniques and ensure that the potential benefits outweigh the associated risks.
 
Regulatory issues play a role in shaping the future of regenerative medicine. As the field progresses and new therapies emerge, regulatory bodies must establish clear guidelines and frameworks to evaluate the safety and efficacy of these treatments. Striking the right balance between fostering innovation and protecting patients' wellbeing is important for the development and implementation of regenerative medicine approaches. Public acceptance and understanding are paramount for the widespread adoption of these technologies. Educating the public about the science, potential benefits, and ethical considerations is essential to foster informed discussions and garner support. Building trust between the scientific community, regulatory agencies, and the public is essential to navigate the challenges and dilemmas inherent to regenerative medicine. Only with careful deliberation, collaboration, and responsible stewardship, will regenerative medicine contribute its full potential for solutions that improve health and wellbeing.
 
A role for governments
 
Government support for regenerative medicine is important for the development of innovative therapies for disabilities and diseases with limited treatment options. Administrations investing in R&D can result in therapies that address unmet medical needs and offer hope to patients. Many disabilities and diseases severely impact individuals' quality of life, hindering their daily activities and overall wellbeing. Governments have a public health obligation to foster the development of regenerative medicine, as it has the potential to restore or regenerate damaged tissues and organs, ultimately improving the lives of millions. In addition to the health benefits, regenerative medicine is a rapidly growing sector with significant economic potential. Appropriate support for R&D in this field can stimulate economic growth by creating high-skilled jobs and attracting investment from biotech and pharmaceutical companies. The successful development and commercialization of regenerative medicine therapies can also reduce healthcare costs, as they offer more effective treatments and alleviate the burden on healthcare systems.
 
Governments that prioritize R&D in regenerative medicine contribute to scientific advancements and potentially help to establish their countries as leaders in this emerging field. R&D facilitates collaboration between academia, industry, and healthcare institutions, driving innovation. This support aligns with principles of equity, access to healthcare, and the pursuit of scientific progress, demonstrating an administration's social and ethical responsibility to promote health and wellbeing among its citizens. Aging populations and increasing rates of chronic diseases and disabilities pose significant challenges to healthcare systems worldwide. Continuous treatments, hospitalizations, and long-term care result in substantial healthcare costs. By investing in R&D for regenerative medicine, governments can develop therapies that offer long-term solutions, reducing the need for costly and continuous interventions. This can lead to significant healthcare savings over time.
 
An international perspective

Countries worldwide are actively supporting R&D in regenerative medicine. The US is a leader in the area, with significant investment in R&D through organizations like the National Institutes of Health (NIH). Japan has established itself as a global leader with substantial funding, and supportive regulation with a streamlined approval process for regenerative medicine therapies. South Korea has also emerged as a prominent player, establishing dedicated centres and institutes to promote regenerative medicine and foster collaboration between academia and industry. The UK is committed to supporting R&D in the field and encouraging collaboration between various stakeholders. Germany invests in regenerative medicine R&D through research centres and institutes, while China has launched initiatives, established research centres, and has a rapidly growing regenerative medicine industry. These countries, and others, are actively engaged in advancing the field through funding, regulations, and collaboration, which aim to accelerate the development and commercialization of regenerative therapies.
 
Takeaways
 
We have presented a range of regenerative medicine technologies and described their advantages and challenges. We also mentioned that these technologies are developing at different rates and are often used together to create one therapy. So, what can MedTechs do to answer the question we posed at the beginning of this Commentary: Which technology or combination of regenerative medicine technologies will ultimately dominate in the next decade? While it is difficult to predict the future, it seems reasonable to suggest that the convergence of these evolving technologies will play a pivotal role in the transformation of regenerative medicine. Each technology brings both advantages and challenges, and their ultimate dominance will depend on several factors, including scientific breakthroughs, clinical success, regulatory considerations, and patient acceptance. To remain relevant and succeed in this arena, companies must recognize the urgency of intensifying their R&D efforts in regenerative medicine. This requires not only investing in cutting-edge technologies but also fostering collaboration between disciplines, institutions, and industry partners. By cultivating a comprehensive understanding of the evolving landscape, MedTechs can position themselves to either establish a significant presence or expand their footprints in regenerative medicine. It is important for them to closely monitor advancements across a range of relevant technologies. With the rapid pace of innovation, staying informed about emerging trends, breakthroughs, and disruptive technologies is essential to avoid being caught off guard. By proactively identifying potential synergies and areas of collaboration, enterprises can leverage their expertise and resources to accelerate progress.
 
Over the next decade, regenerative medicine has the potential to transform healthcare by offering novel treatments, repairing damaged tissues and organs, and improving patients' quality of life. MedTechs have an opportunity to help drive this transformation, but they must embrace the challenge of exploring and integrating various rapidly evolving and complex technologies. Will they be brave and agile enough to do this?
 

#stemcellresearch #tissueengineering #electro-stimulation #genetherapy #organregeneration #3Dbioprinting #nanotechnology

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  • Glioblastoma (GBM) is an aggressive, challenging to treat, and not fully understood form of brain cancer that currently has no cure
  • Each year ~10,000 Americans and ~2,200 UK older citizens are diagnosed with the disease
  • The standard of care is surgery followed by radiation and chemotherapy
  • Prognosis is poor with median survival of ~15 months with treatment and ~3-4 months without treatment
  • Researchers and medical institutions throughout the world as well as multinational pharmaceutical companies, giant MedTechs and biotech start-ups are exploring novel therapies for the disease
  • The US leads the world in investment in biomedical research carried out in universities and research institutions, but China is catching up
  • Promising research avenues include immunotherapy, targeted therapies, gene therapy, nanotechnology, and tumour-treating fields but the current success of multiple clinical trials is not good
  • Diversified MedTechs might be reluctant to fund research and development (R&D) in GBM due to its complexities, rarity and smaller patient population
  • As GBM is a public health concern governments might consider increasing their investments and coordination of medical research to find efficacious therapies for the disorder
  • Agile smaller MedTechs and biotech start-ups with streamlined processes have a presence in GBM R&D, which might be due to the condition’s unique challenges and market dynamics
 
Beyond the Battle: Illuminating Glioblastoma
Unmasking its challenges and promising horizons

 
"In the battle against glioblastoma, a relentless and unforgiving adversary, we confront the fragility of our own existence, and the limits of our medical prowess. It is a disease that embodies the epitome of human suffering, where hope and despair dance an eternal waltz, and where the line between life and death blurs into an unsettling haze of uncertainty." Henry Marsh, Do No Harm
 
This Commentary explores the ever-evolving realm of glioblastoma (GBM) research and suggests that something promising is underway, which needs more support. As the landscape of research and development (R&D) takes shape, a compelling phenomenon emerges: the rising tide of university-based researchers and agile biotech start-ups daring to tackle the unique challenges of this brain cancer. With determination, they delve into niche areas, embarking on ground-breaking endeavours, fueled by scientific curiosity, patient advocacy, and the pursuit of disruptive innovation. Small companies’ streamlined decision-making processes and unwavering focus on GBM research give them a competitive edge, which they share with global pharmaceutical companies, while diversified MedTechs hesitate in the face of the relative rarity and complexities of the disease. GBM’s challenges, which extend from its elusive location to its resistance to conventional treatments pose substantial obstacles that require unconventional approaches. As the stakes rise, smaller MedTechs and start-ups, often fueled by innovative scientific breakthroughs from universities and supported by government research grants, prove their mettle, undeterred by failure or setbacks. Glioblastoma therapies appear to be a world where the underdogs rise, and cutting-edge treatments hold the key to rewriting the fate of the disease.

 
In this Commentary

This Commentary is in two parts. Part 1 entitled Glioblastoma: Advances and Challenges in Treatment provides an overview of glioblastoma, covering its characteristics, incidence, and standard treatment approaches. It delves into the global efforts of researchers who are exploring novel therapies for GBM, instilling a renewed sense of hope in the battle against this disease. The Commentary describes key innovative treatments such as immunotherapy, targeted therapies, gene therapy, nanotechnology, and tumor-treating fields, and briefly discusses the companies actively pursuing these therapies, highlighting that the current success of multiple clinical trials is lacking. Part 2, entitled Glioblastoma Research: Government Support and the Rise of Innovative Players, acknowledges the research conducted in universities and medical institutions worldwide. American universities and research institutes are particularly well-positioned due to the US’s leadership in biomedical research investment, although China is rapidly catching up. The Commentary suggests that governments should increase their support for novel therapies to treat glioblastoma, as relying solely on private entities to fund research for such a rare and complex disease seems unreasonable. We highlight the Chinese government's commitment to supporting biomedical research and addressing rare diseases like glioblastoma and draw attention to Parag Khanna’s thesis in Technocracy in America, suggesting Chinese state capitalism may have advantages over Western liberal democracies in developing high tech medical technologies. The Commentary ends by noting the significant presence of smaller companies in this field. Many that take risks in pursuing innovative solutions have streamlined decision-making processes and are driven by scientific curiosity, patient advocacy, and potentially disruptive innovation, which gives them a competitive edge.
 

Part 1
 
Glioblastoma: Advances and Challenges in Treatment

Glioblastoma (GMB) is an aggressive, common, and malignant form of brain cancer in adults, which is challenging to treat because the tumour is interconnected with healthy tissue, making it almost impossible to excise completely. Also, radiation has the potential to damage peripheral healthy tissue, and the brain’s natural barrier to chemotherapeutics makes GBM one of the most difficult and deadly diseases to deal with.
 

What are gliomas? - Mr Ranjeev Bhangoo
 
Your brain is made up of various types of cells, and GBM specifically affects glial cells, which have supportive roles, such as providing nourishment and protection to the neurons, which are the main cells responsible for transmitting signals in your brain. Glioblastoma develops when there is an abnormal growth of glial cells. However, its exact cause is not fully understood, but researchers believe that it may be influenced by a combination of genetic factors and environmental exposures. When someone is diagnosed with GBM, it means they have a tumour that typically starts in the brain but can spread to other parts of the central nervous system (CNS). The tumour grows rapidly, often infiltrating nearby healthy brain tissue, which makes it difficult to remove entirely through surgery. Because of its invasive nature, GBM can cause various symptoms depending on its location, including headaches, seizures, cognitive changes, weakness, and difficulties with speech or vision.
 
Incidence

Glioblastoma is relatively rare compared to other cancers and its global incidence rates vary by region. The disease is more common in older adults. While there have been no significant changes in its incidence over time, ongoing research aims to better understand the factors that influence its occurrence. The condition accounts for ~15% of all primary brain tumours and its annual incidence ranges from 0.59 to 3.69 cases per 100,000 people, and these numbers may vary based on factors such as age, genetics, and environmental factors. Each year, ~10,000 individuals in the US will present with the disease, and ~2,200 cases will be diagnosed in England. Advances in diagnostic techniques and increased awareness of the disease may have contributed to improved identification and reporting of cases. Age is a significant factor, with the highest incidence rates occurring in older adults; with the peak observed between 65 and 75, while being relatively uncommon in children and young adults. Researchers continue to study potential risk factors and factors that may influence its occurrence, but because the condition is complex and challenging to study, its causes and risks are still not fully understood. Notwithstanding, some factors that have been associated with GBM include, exposure to ionizing radiation, certain genetic syndromes, and a family history of glioblastoma, but most cases occur without any identifiable risk factors.
 
Standard of care

Treating glioblastoma is challenging because currently there are no curative therapies for the condition and treatment has remained almost unchanged for >20 years. The standard of care involves surgery, which aims to remove as much of the tumour as possible without causing damage to healthy brain tissue. However, due to the tumour's invasive nature, complete removal is rare. Thus, following surgery, the patient undergoes a combination of temozolomide, a type of chemotherapy medication that can enter the brain through the blood-brain barrier, and radiation therapy, followed by additional temozolomide treatment for six months. The effectiveness of these therapies is limited by high rates of tumour recurrence, treatment-related toxicity, emerging resistance to therapy and ongoing neurological deterioration. GBM has some of the worse outcomes of any cancer: a survival rate of ~15 months after diagnosis makes it a crucial public health issue. Only ~25% of patients survive more than one year, and only ~5% survive >5 years. Despite the first recorded reports of gliomas in British scientific reportswere in the early 19th century and the first histomorphology was made in 1865, there only have been four drugs and one device approved by the FDA for the condition. Given the disease's poor survival rate with currently approved treatments, new therapeutic strategies for GBM are urgently needed. 
 
Novel therapies

Various researchers, medical institutions, multinational pharmaceutical companies, giant MedTechs and biotech start-ups are exploring novel therapies for GBM, offering renewed hope in the battle against this devastating disease. Promising avenues have emerged and are chronicled here. Part 1 of this Commentary describes the current landscape of these therapies while acknowledging encountered challenges and failures. Despite setbacks in clinical trials, the unwavering commitment to combatting the disease and improving patient outcomes remains evident. Researchers throughout the world strive to unlock the full potential of these therapies, building upon successes and providing new hope for GBM patients, but this could benefit from more centralized support and coordination, which is addressed in Part 2.

Immunotherapy
Immunotherapy utilizes the body’s immune system to treat diseases, including cancer. By stimulating or enhancing the immune response, it strengthens the immune system’s ability to recognise and destroy harmful substances like viruses, bacteria, and cancer cells. For GBM, immunotherapy offers a promising alternative to traditional treatments.
 
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Immune checkpoint inhibitors (ICI) block checkpoints exploited by cancer cells, enabling the immune system to target cancer cells more effectively. Adoptive cell therapy modifies a patient’s own immune cells to specifically attack cancer cells. Immunotherapy for GBM is significant as it potentially improves patient outcomes, increases survival rates, minimizes damage to healthy tissues, and has shown promise in cases where other treatments have failed.
Companies conducting immunotherapy R&D
Ongoing clinical studies are actively assessing the effectiveness of immunotherapy in combating GBM. Global pharmaceutical companies such as Merck & Co. and Bristol Myers Squibb, are at the forefront of R&D efforts pioneering immunotherapies for the disease. Additionally, Roche has made investments in novel therapies for GBM and is actively involved in clinical trials evaluating the efficacy of their treatments. Bristol Myers Squibb’s clinical studies investigate the potential of immune checkpoint inhibitors (ICI), which as we explained, is a type of therapy that unleashes the immune system’s full potential by removing the brakes that hinder its ability to identify and eliminate cancer cells effectively. While ICI therapies have achieved substantial success in the broader field of oncology, their impact on GBM has been modest thus far.

Celldex Therapeutics, a clinical stage biotech based in New Jersey, US, is also committed to the development of immunotherapies for glioblastoma. Their research is focussed on innovative therapeutic vaccines and antibody-based treatments that stimulate the immune system’s response against glioblastoma cells. Despite the considerable R&D efforts dedicated to immunotherapy, its efficacy so far in GBM remains limited due to the complex challenges posed by the blood-brain barrier, incomplete understanding of the neuroimmune system, and the multifaceted immunosuppression that accompanies the disease. However, recent advances in treatment strategies offer renewed promise by combining immunotherapy with other complementary approaches.
 

Targeted therapies
Targeted therapies are a specialized form of treatment that focuses on specific molecules or pathways crucial for the growth and survival of cancer cells. Unlike conventional treatments like chemotherapy and radiation, which can harm healthy cells along with cancerous ones, targeted therapies aim to attack cancer cells while minimizing damage to healthy tissues. In the case of GBM, targeted therapies hold promise as they identify specific abnormalities or mutations driving the growth and survival of cancer cells. These abnormalities can be unique to cancer cells or occur more frequently in them compared to normal cells. Targeted therapies are designed to interfere with these specific abnormalities or mutations in various ways. Some treatments block or inhibit proteins or pathways that are overactive or abnormal in cancer cells, aiming to halt their growth, induce cell death, or hinder their ability to spread.
 

What are targeted therapies? - Dr. Whitfield Growdon
 
For instance, tyrosine kinase inhibitors, a group of drugs used in GBM, work by blocking the activity of tyrosine kinases - proteins involved in signaling pathways that promote cancer cell growth. By inhibiting these, the drugs slow down cancer cell growth and potentially shrink tumours. Another targeted therapy approach under investigation for GBM is angiogenesis inhibitors. Glioblastoma tumours, like all tumours, rely on a blood supply to grow and can stimulate the formation of new blood vessels (angio genesis) to sustain their growth. Angiogenesis inhibitors disrupt this process by targeting the molecules involved in blood vessel formation, depriving the tumour of essential nutrients and oxygen.
 
Targeted therapies are not universally effective, as their success depends on the specific abnormalities present in cancer cells and individual patient characteristics. Ongoing research and clinical trials focus on identifying the most effective targeted therapies and optimal ways to employ them in GBM and other cancer treatments. To enhance the effectiveness of targeted therapy for the condition, several strategies are being explored. These include utilizing nanoparticlesand monoclonal antibodies to transport anticancer drugs directly to the tumour, overcoming the brain's protective barriers. Additionally, introducing genetically modified bacteria into the tumour after surgical removal aims to selectively destroy cancer cells while sparing normal brain tissue. Also, tailoring treatments to individual patients and testing them through clinical trials are crucial steps in maximizing the potential of targeted therapies for GBM and other cancers.


Companies conducting targeted therapy R&D
Several prominent companies, such as Roche and Novartis, are engaged in R&D efforts for targeted therapies in GBM. Bristol Myers Squibb and  AbbVie also have ongoing projects focused on targeted therapies for the disease. In January 2023, Cantex Therapeuticsazeliragon, a targeted therapy developed for glioblastoma, received orphan drug designation from the FDA and commenced a phase II clinical trial. Cantex licensed the drug from vTv Therapeutics, a clinical-stage biotech, which intended the therapy to be for Alzheimer patients. Azeliragon, administered as a once-daily pill has excellent tolerability, and works by blocking the RAGE receptor involved in a specific biological process. By preventing certain substances from interacting with this receptor, the drug has the potential to enhance the effectiveness of GBM treatment. Despite progress in targeted therapy research, multiple phase III clinical studies have failed. This starkly highlights the gap between the urgent need for effective therapies, the expanding scientific understanding of the disease, and the lack of translation into novel treatments. This discrepancy can be attributed to various factors, including the inherent biological and clinical challenges posed by GBM, as previously mentioned.
 
A different type of targeted therapy for difficult to treat brain cancers is being developed by Cognos Therapeutics, a MedTech based in Inglewood, California, US. Its lead offering Sinnais, is a novel implantable drug delivery pump designed to overcome the blood-brain barrier (BBB), which is a significant challenge in modern medicine. Although we have mentioned the BBB several times in this Commentary, let us describe it more fully as it is central to Cognos’s Sinnais offering. The BBB protects the brain from potentially harmful substances in the bloodstream. While it serves a protective function, it also restricts the entry of many drugs, including those developed for brain and other central nervous system (CNS) diseases. Numerous medications have been developed by pharmaceutical companies for brain and CNS diseases but cannot be used or have limited efficacy due to their inability to cross the BBB. Sinnais is Cognos’s proposed solution. When implanted the device delivers therapeutics locally and metronomically (at precise intervals) to the desired area in the brain. By potentially providing patient- and tumour-specific targeted chemotherapeutics directly to the tumour site in microlitre resolutions, the device offers a more targeted and effective treatment option for brain cancers, including GBM. A commercial opportunity for the company is to partner with pharmaceutical companies that have developed drugs for brain cancers and other neurological disorders but cannot deliver them across the BBB. In January 2023, Cognos entered into a business combination agreement with Noctune Acquistion Corp, a special purpose acquisition company (SPAC), in a move to become publicly traded on Nasdaq. The deal is expected to help Cognos expedite its R&D of Sinnais, which has the potential to become the world’s first implantable device for local targeted and metronomic delivery of therapeutics for the treatment of neurological diseases. 

Gene therapy
Gene therapy is a cutting-edge medical approach that aims to treat genetic disorders and certain diseases by targeting and modifying the genes within your cells. Genes are like the instruction manuals that tell your cells how to function properly. When there is a problem with a gene, it can lead to the development of various diseases.
In gene therapy, scientists use specialized techniques to introduce healthy genes into the cells of a person with a genetic disorder or disease. These healthy genes can replace the faulty ones or provide the cells with the necessary instructions to function correctly. The therapy’s goal is to fix the underlying genetic cause of the disease rather than just treating the symptoms.
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Because GBM is known to be aggressive and difficult to treat, gene therapy holds potential for its treatment. One reason is that GBM is believed to be often caused by specific genetic mutations that lead to the uncontrolled growth of brain cells. Gene therapy can target these mutations directly and correct them by introducing healthy genes or inhibiting the effects of the faulty ones. Another advantage is that it can deliver therapeutic genes directly to the tumour site in the brain. This may be achieved by using viral vectors or other delivery systems, with the capability to cross the blood-brain barrier. By doing so, gene therapy can precisely target cancer cells while minimizing damage to healthy brain tissue. The therapy has the potential to enhance the immune system's ability to recognize and attack cancer cells by modifying immune cells or by introducing genes that boost the immune response against the tumour. Gene therapy for GBM is still in its infancy but holds potential for treating the disorder by directly targeting the genetic abnormalities responsible for the tumour's growth. Its ability to deliver therapeutic genes precisely and enhance the immune response against cancer cells makes it a significant avenue to pursue for future treatment options.

Companies conducting gene therapy R&D
Several pharmaceutical and MedTech companies are actively engaged in gene therapy R&D programmes to treat glioblastoma. Novartis is currently conducting ongoing clinical trials, which involve the utilization of modified viruses to deliver therapeutic genes. Genprex, a small clinical-stage biotech traded on Nasdaq and based in Austin, Texas, is developing gene therapies for cancer, including GBM. One of their notable products is GPX1, that employs a non-viral nanoparticle delivery system to introduce a therapeutic gene into tumour cells, inhibiting their growth. Genprex has achieved some early success with advanced non-small cell lung cancer (NSCLC).  Mustang Bio, another clinical-stage biotech specializing in gene therapy R&D is focused on developing CAR-T cell therapies. This involves modifying a patient's own immune cells to recognize and selectively attack cancer cells. In May 2019, the company obtained Orphan Drug status from the FDA for an oncolytic virus, licensed from the Nationwide Children’s Hospital, which effectively kills cancer cells and is used in the treatment of GBM.

In April 2019, the FDA granted Ziopharm Oncology Fast Track Designation for its treatment, Ad-RTS-hIL-12 plus veledimex, which targets GBM. The therapy involves delivering a gene that produces a protein to stimulate the immune system's response against the tumour. Initial studies produced promising results in a small number of GBM patients. However, following an activist attack by WaterMill Asset Management Corp, Ziopharm underwent a reorganization, appointed a new CEO, abandoned the clinical study, and rebranded itself as Alaunos Therapeutics, relinquishing its GBM asset.

Tocagen, a clinical-stage, gene therapy company based in San Diego, US, is dedicated to developing treatments for cancer, including GBM. The company developed two drugs, Toca 511 and Toca FC, that can cross the blood-brain barrier and target tumour cells. The drugs work together and involve delivering a therapeutic gene into tumour cells and then activating it with an oral medication to selectively kill the cancer cells. In April 2017 the company listed on Nasdaq and later that year, its lead product received FDA Breakthrough Therapy Designation and Priority Medicines (PRIME) designation from the European Medicines Agency for the treatment of high grade gliomas (HGG). However, in September 2019, Tocagen announced that its phase III randomized, multi-centre clinical trial consisting of 380 patients with recurrent HGG failed the primary endpoint of overall survival compared to standard of care treatment. To get so far in the process and not yield significant results for survival is a significant setback. Shares in the company fell ~80%, half of its employees were made redundant, and the company set about restructuring.


Nanotechnology
Nanotechnology involves working with tiny particles (nanoparticles), which are thousands of times smaller than the width of a human hair and can be engineered and manipulated to have special properties and functions. One area the technology is making significant contributions is in the field of medicine, particularly in the development of new therapies for challenging diseases like glioblastoma. Nanotechnology-based therapies for GBM work by utilizing nanoparticles that are designed to specifically target cancer cells in the brain. These can be loaded with drugs or other therapeutic agents to kill or slow down the growth of cancer cells. Scientists design nanoparticles in such a way that they can cross the blood-brain barrier and reach tumour cells more efficiently. Once the particles reach the tumour cells, they release therapeutic agents in a controlled and targeted manner. This precision helps to minimize the damage to healthy brain cells and reduces side effects compared to traditional therapies. Nanoparticles can be engineered to respond to specific signals or conditions within the tumour environment, allowing for even greater precision in drug release. The technology also allows for non-invasive imaging and diagnosis of GBM. Scientists have developed nanoparticles that can be used as contrast agents in imaging techniques such as magnetic resonance imaging (MRI), which can help visualize the tumour and monitor its response to treatment over time. While more R&D is needed, the use of nanotechnology holds promise for improving outcomes and quality of life for patients with GBM and other challenging cancers.
 

Companies conducting nanotechnology R&D
MagForce, a publicly traded German medical device company is among the early developers of novel nanotechnology-based cancer treatments. Its lead offering, the NanoTherm therapy system, is the first and only nanotechnology-based therapy to receive European regulatory approval (CE marking) for the treatment of brain tumours. The system utilizes magnetic nanoparticles to heat and destroy tumour cells. The process involves injecting magnetic iron oxide nanoparticles into the tumour. Then, MagForce’s therapeutic device, the NanoActivator, is used to treat the affected area with an alternating magnetic field, which generates heat, leading to localized tumour cell destruction. The company is now working on a strategy to market its NanoTherm therapy outside Germany aided by a €35m loan from the European Investment Bank under the European Fund for Strategic Investments.

Imunon previously, Celsion Corporation is a New Jersey, US-based clinical-stage oncology-focused company that has been working on a nanoparticle-based multi-modal drug delivery system called ThermoDox®. The system utilizes heat-activated liposomal nanoparticles to deliver chemotherapy drugs directly to tumour sites, including GBM. The nanoparticles release the drug when exposed to focused ultrasound or radiofrequency ablation, which selectively activates the drug within the tumour. In September 2022, Celsion changed its name to Imunon. “With this name change, we are underscoring our commitment to create a new category of medicines. With a strong balance sheet supporting current operations into 2025, we are well positioned to build a differentiated company to deliver the promise of our mission”, said Corinne Le Goff, president, and CEO. In February 2023, the company announced the commencement of patient enrolment of a clinical trial to evaluate a therapy for ovarian cancer, another “difficult to treat cancer”.

BIND Therapeutics was a biotech co-founded in 2007 by Robert Langer, a pioneer of many new technologies and widely regarded for his contributions to biotechnology. BIND engineered a nanomedicine platform developing Accurins®, a novel targeted and programmable class of therapeutics designed to target specific cells or tissues and concentrate a therapeutic payload at the site of disease. In 2013, the company raised a US$70m in an IPO, and had early success with a Phase I clinical trial comprised of 28 patients. The study established the safety and tolerability of BIND-014 in patients with advanced or metastatic solid tumour cancers, and in 2015, its findings were presented at the American Association for Cancer Research (AACR) Annual Meeting. Despite this success, in May 2016 BIND filed for voluntary Chapter 11 of the US bankruptcy code and its assets were acquired by Pfizer for US$40m. The novel therapy continued to be developed but not for GBM; findings of a phase II clinical study comprised of 42 patients with metastatic prostate cancer, was published in the July 2018 edition of JAMA Oncology, and reported the median radiographic progression-free survival to be 9.9 months.


Tumour-Treating Fields
Tumour-Treating Fields (TTFields) is an innovative treatment approach used for certain types of cancer, including GBM. It is a therapy that utilizes electromagnetic fields to disrupt the growth and division of cancer cells and involves the use of a device that generates low intensity alternating electric fields, which are designed to interfere with the process of cell division; a crucial step in the growth and spread of cancer cells. By applying electric fields to the tumour site, TTFields aim to disrupt cancer cells' ability to multiply and form new tumour masses. The significance of the technology for GBM lies in its potential to provide an additional treatment option that can complement existing therapies and can be used in combination with traditional treatments: surgery, radiation therapy and chemotherapy. One of its advantages is that it specifically targets cancer cells while sparing healthy tissues. The electric fields disrupt the division of actively dividing cells, which is a characteristic of cancer. Healthy cells, which typically have a slower rate of division, are less affected. This approach may lead to fewer side effects compared to other treatment modalities. Clinical studies have shown that TTFields can improve overall survival and progression-free survival in patients with glioblastoma when used in combination with standard treatments. The therapy has been approved by regulatory agencies, including the FDA, for the treatment of GBM and is being increasingly integrated into clinical practice.

Companies conducting TTFields R&D
Novocure is a pioneering MedTech oncology company that developed and commercialized the Optune®, a non-invasive portable device, which delivers TTFields therapy and has been approved by the FDA for the treatment of GBM. The company was founded in Haifa, Israel in 2000 by Yoran Palti, (Professor of Physiology and Biophysics at the Technion Israel Institute of Technology in Haifa). NovaCure grew to become a Nasdaq traded corporation with a market value of >US$7bn, >1,300 employees, annual revenues of ~US$0.54bn, and operations in the US, Europe, and Asia.

Palti hypothesized that alternating electric fields in the intermediate frequency range could disrupt cancer cell division and cause cancer cell death. He set up a home laboratory, where he demonstrated that, when applied at tumour cell-specific frequencies (200 kHz for GBM), alternating electric fields disrupt cell division, leading to cancer cell death but sparing healthy cells. The results motivated him to set up Novocure. The company’s second-generation Optune device has design improvements intended to enhance patients’ experience with TTFields treatment. The device consists of a set of adhesive patches or arrays that are placed directly on the patient's scalp over the area where the tumour is located. These are connected to a portable device that generates the electric fields. It weighs ~1.2 kg (~2.7 lbs) and is worn continuously while the patient carries on with their daily activities while receiving treatment.

On 6 June 2023, NovoCure’s shares crashed ~43% after the failure of a clinical trial of Optune on non-small cell lung cancer (NSCLC) patients. The company plans  to file for US Premarket Approval (PMA) for TTFields in treating NSCLC later this year, and expects to announce results from three other late-stage studies of its device targeting other indications by the end of 2024.

QV Bioelectronics is a UK-based start-up founded in 2018 by a biomedical engineer and a neurosurgeon. The company’s lead offering, referred to as GRACE, (Glioma Resection Advanced Cavity Electric field therapy), employs electric field therapy like that of NovoCure, to slow the growth of GBM. Different to NovoCure’s Optune, GRACE is positioned to be implanted into patients already undergoing surgery. After surgery, it delivers therapy to the tumour resection margins where most of the glioblastoma recurrence takes place. The device is expected to operate without causing harm to healthy brain cells. To-date, QV has raised ~£3.5m, (~US$4.5m) and has received ~£2M (~US$2.5) in non-dilutive grants, including £860k (~US$1M) in March 2023 from Innovate UK, the UK’s national innovation agency.  The company plans to use recent proceeds to expand its preclinical studies, finalise the initial design of GRACE, and develop a commercial strategy and regulatory pipeline as it prepares for clinical grade testing.


Part 2
 
Glioblastoma research: Government Support and the Rise of Innovative Players
 
Universities and research institutions engaged in GBM R&D
 
In addition to companies, which we described in Part 1 of this Commentary, universities and research institutions around the world are actively engaged in R&D efforts aimed at exploring novel therapies for glioblastoma. American universities and research institutes are particularly well placed as the US leads the world in investment in biomedical research. For instance, its National Institutes of Health (NIH) annually invests  >US$40bn in medical research throughout the US. However, China is catching up (see below). One leading American institution that benefits from this US policy is the Massachusetts Institute of Technology (MIT), where researchers have been investigating innovative approaches such as nanotechnology-based drug delivery systems and targeted therapies to combat glioblastoma. In the UK, the University of Oxford has made significant strides in developing immunotherapies and personalized treatments for GBM. In Canada, the University of Toronto’s researchers are focussed on novel gene therapies and the development of targeted nanoparticles for improved drug delivery to GBM tumours. In Australia, the University of Sydney’s Brain and Mind Centre is actively involved in the exploration of stem cell-based therapies and advanced imaging techniques to better understand the tumour’s biology and improve treatment outcomes. These academic institutions, together with many others globally, are actively searching for breakthrough therapies for patients battling glioblastoma. University medical research groups can receive funding from medical research charities, as well as governments. However, a private company may licence a technology from a university or research institute and fund, or co-fund, clinical trials.
 
The Case for increased government funding for GBM R&D

In Part 1, we described how glioblastoma is characterized by its rapid progression, resistance to conventional treatments, and complex biological nature, which contribute to the difficulty in developing effective therapies. The intricate interplay between tumour cells and the brain, along with the blood-brain barrier, makes drug delivery and targeted treatment options particularly challenging. Given the multifaceted obstacles involved, it seems unreasonable to expect private entities to solely bear the burden of funding R&D for such a rare and complex disease. Glioblastoma affects a relatively small number of individuals, limiting the potential market for pharmaceutical companies and MedTechs. The high costs associated with R&D, clinical trials, and regulatory approval create a significant financial risk for private investors. The lack of substantial profitability prospects may discourage private entities from allocating resources to GBM research. In contrast, governments have a vested interest in public health and can allocate funding based on societal needs rather than immediate profitability.

Government-funded research can foster collaboration among scientists, clinicians, and institutions. By providing a platform for shared knowledge, data, and resources, governments are well positioned to facilitate scientific breakthroughs for complex conditions. GBM research would benefit from collective efforts, allowing scientists to efficaciously pool their expertise to accelerate progress. Government funding can enable the establishment of research consortia, collaborative networks, and specialized centres dedicated to glioblastoma R&D. Developing innovative therapies for the condition requires sustained long-term commitment. Private entities may be inclined to prioritize shorter-term projects with faster returns on investment. In contrast, governments have the capacity to pursue research with longer horizons and tolerate greater risks. By investing in long-term R&D, governments can support the exploration of unconventional ideas, disruptive technologies, and novel approaches that may yield significant advancements in glioblastoma treatment. Also, government involvement in funding R&D can prioritize the development of therapies that are accessible and affordable to all patients. Private entities may choose high-profit-margin treatments, potentially leading to a lack of affordability for many individuals. Government-funded R&D initiatives can ensure that breakthroughs in GBM treatment reach the wider population, reducing health disparities and ensuring equitable access to potentially life-saving interventions.

 
Chinese R&D in novel GBM therapies

In a thought-provoking book, Technocracy in America, Parag Khanna presents an argument that challenges the conventional wisdom surrounding economic systems and their impact on technological development. Khanna highlights the success of China’s blend of market economy and state-owned enterprises in fostering the growth of cutting-edge medical technologies. Drawing comparisons with Western liberal democracies, Khanna suggests that China’s technocratic approach, characterized by strategic direction and state-led initiatives, offers distinct advantages in driving advancements in the high-tech medical sector. Khanna prompts us to reassess our assumptions about the most effective pathways to progress in the realm of medical technology.

The development of a ‘Healthy China 2030’ is central to the Chinese Government’s agenda for health and development, and has the potential to reap benefits for the rest of the world. President Xi Jinping has put health at the centre of the country’s policy-making machinery, making the need to include health in all policies an official government policy. The Chinese government has expressed a commitment to supporting biomedical R&D, including efforts aimed at addressing rare diseases like glioblastoma. Specific initiatives may receive funding and support through programmes such as the National Natural Science Foundation of China (NSFC), China's National Key R&D Programmes (NKPs), and collaborations between domestic academic institutions, research centres, and pharmaceutical companies. In China, efforts are underway to develop innovative immunotherapeutic approaches, including immune checkpoint inhibitors, chimeric antigen receptor (CAR) T-cell therapy, and peptide-based vaccines. These approaches aim to enhance the immune system's ability to recognize and eliminate GBM cells. China is also exploring gene therapy approaches for GBM treatment. One notable example is the use of genetically modified viruses to deliver therapeutic genes directly into tumour cells. Researchers have conducted clinical trials, such as using oncolytic adenoviruses and retroviruses, to induce tumour cell death and stimulate the immune response against glioblastoma. Nanotechnology-based strategies are being explored to improve drug delivery and enhance the efficacy of GBM treatment. Scientists are developing nanoparticles and nanostructured systems capable of crossing the blood-brain barrier and delivering therapeutic agents directly to the tumour site, which aim to increase drug accumulation in tumours while minimizing systemic side effects. China is also involved in stem cell-based therapies that hold promise for glioblastoma treatment. Researchers are investigating the use of neural stem cells, mesenchymal stem cells, and induced pluripotent stem cells for targeted drug delivery, immune modulation, and regenerative purposes. These approaches aim to improve patient outcomes and overcome treatment resistance to GBM. Further, Chinese researchers are investigating the potential of traditional Chinese medicine (TCM) for glioblastoma treatment. Studies have focused on identifying bioactive compounds from medicinal plants and evaluating their anti-tumour effects, as well as exploring the synergistic effects of TCM in combination with conventional therapies.

 
Takeaways

This Commentary describes some of the ongoing developments of novel therapies for GBM mainly at the company level and suggests reasons why it is unreasonable for private companies to bear the main burden of finding therapies for glioblastoma. We also suggest that ongoing R&D initiatives at the company level should be approached with caution as their effectiveness and safety are still being investigated through clinical trials. Further, we mention that universities and research institutes worldwide are actively engaged in R&D programmes, involving multidisciplinary teams dedicated to various aspects of GBM. These efforts encompass understanding the underlying biology, exploring innovative treatment strategies, conducting clinical trials, and investigating novel therapeutic approaches. Further, we suggest that because GBM is a public health issue, governments might consider increasing their investments in, and their coordination of, GBM R&D. The Commentary draws attention the Parag Khanna’s book, Technocracy in America, which encourages us to re-examine our assumptions about the most effective policies to accelerate the development of medical technology and suggests that China’s model of state capitalism appears to have advantages over Western liberal democracies.

Regarding medical R&D landscape at the company level, it seems reasonable to suggest that the unique challenges and market dynamics associated with glioblastoma may lead to a more significant presence of smaller MedTechs and start-ups in this field. Such entities often possess the ability to focus on niche areas and take risks in pursuing innovative solutions. Their streamlined decision-making processes and flexibility in allocating resources specifically to GBM research, driven by scientific curiosity, patient advocacy, and potentially disruptive innovation, provide them with a competitive advantage. Conversely, many large diversified MedTechs may be less inclined to invest in GBM R&D compared to more prevalent cancers such as breast, lung, or colon cancer. This is primarily due to the relative rarity of GBM, resulting in a smaller patient population. From a business perspective, the smaller market size may be less financially attractive to established MedTechs seeking larger patient populations with higher profit potential. The highly complex and challenging nature of glioblastoma, including its location, infiltrative behaviour, and resistance to standard treatments, poses significant obsacles in developing effective therapies. The complexity and risks associated with GBM R&D present substantial challenges for many companies with more extensive resources and stakeholders to manage, as the potential for failure or setbacks is higher.
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