Children with solid tumors who relapse are being treated with the same chemotherapy they would have been given 40 years ago, as “there have been no major approvals for pediatric solid tumors,” Catherine Bollard, senior vice president and chief research officer at Children’s National Hospital, said at a June 5 FDA roundtable on cell and gene therapies (CGTs). The problem isn’t the science. Bollard said many groups are working on curative CGTs “for these children who have lost all other hope for survival.” The real gap is that “big pharma doesn’t see the business model because it’s a rare disease,” she added.
Regenxbio Inc.’s gene therapy in treating Duchenne muscular dystrophy (DMD) produced positive initial phase I/II results from its first five patients. However, the company’s stock (NASDAQ:RGNX) shuddered on June 5 as shares closed at $8.36 each, a drop of 17% on the day.
Chronic pain is a constant challenge to around 20% of the global population, and treatments to mitigate such pain often cause unacceptable side effects because the receptors and signaling pathways involved in pain sensing also drive necessary processes in the heart, lungs and liver. Opioid analgesics can be effective against chronic pain, but they can lead to tolerance and addiction.
The U.S. FDA gave Sarepta Therapeutics Inc.’s rAAVrh74 viral vector, used in an investigational gene therapy for the treatment of limb-girdle muscular dystrophy, a step up, making it one of the first platforms to receive the agency’s platform technology designation.
Alzheimer’s disease (AD) is a progressive neurodegenerative disorder characterized by synaptic dysfunction, neuronal loss and the accumulation of amyloid plaques and neurofibrillary tangles, ultimately leading to cognitive decline. Despite significant research efforts, no existing treatment has proven effective enough to stop or reverse the progression of the disease.
Investors found in an 8-K filing by Intellia Therapeutics Inc. the news of one case of liver-enzyme elevation in the ongoing phase III Magnitude study with nexiguran ziclumeran (nex-z, NTLA-2001), and in reaction pushed shares of the firm (NASDAQ:NTLA) down to close May 29 at $7.45, a loss of $2.21, or 23%, after the stock traded as low as $6.90 during the day.
Rocket Pharmaceuticals Inc. CEO Gaurav Shah said his firm is investigating how its gene therapy for Danon disease may have created an “unexpected and paradoxical” effect that led to problems for a phase II patient who ultimately died.
The lack of animal models that mimic human disease impedes the study of many pathologies that still lack treatment beyond symptom relief. This is what has happened so far with PURA syndrome, a rare disorder affecting brain development for which a mouse model has finally been developed. Other times, small and large models exist, but an effective treatment remains elusive, as is the case with Krabbe disease, a fatal disease in children that could be prevented with the advances in gene therapy.
A collaboration of scientists from the NIH Brain Initiative consortium has published eight simultaneous studies in Neuron, Cell, Cell Genomics, Cell Reports and Cell Reports Methods, with the results of the Armamentarium project, a new set of gene therapy tools for the research and treatment of human brain disorders. The methodology, based on genetic techniques, RNA detection, genomic enhancers and viral vectors, is designed to access different CNS cell types, neuronal and non-neuronal cells, with common and reproducible protocols now available for any laboratory.