Regenerative tissue developer Humacyte Inc. has posted positive top-line phase II/III results for its Human Acellular Vessel, a tissue-engineered graft consisting entirely of decellularized extracellular matrix, for vascular trauma repair. The data showed higher rates of patency, a measure of the lack of vascular obstruction, when compared to synthetic graft benchmarks.

For many multiple sclerosis patients, the approval over the past 30 years of a lengthy list of immunomodulatory therapies has helped to reduce the frequency of relapses and to slow disease progression. However, there has been little parallel progress in the development of remyelination therapies, to tackle the other key pathophysiological dimension of the disease. Patients still have no therapies that can help to repair at least some of the damage that results from flare-ups, and the resulting neuronal loss contributes to further disease progression and disability. Rewind Therapeutics NV, of Leuven, Belgium, is one of a small clutch of firms attempting to tackle this problem.

Biosimilars continue to pose cheaper alternatives to their established, blockbuster counterparts. The U.S. FDA has approved Tyruko (natalizumab-sztn) from Sandoz Inc., the generics business of Novartis AG. It is the first approved biosimilar to Biogen Inc.’s blockbuster Tysabri (natalizumab), an injectable monoclonal antibody for treating adults with relapsing forms of multiple sclerosis (MS).

The U.S. FDA has approved its second treatment for an ultra-rare disease in the past three days by greenlighting Veopoz (pozelimab-bbfg) from Regeneron Pharmaceuticals Inc. Approval of the priority BLA for Veopoz, a fully human monoclonal antibody to treat Chaple disease, was announced two days ahead of its Aug. 20 PDUFA date. It is the only FDA-approved therapy for the indication.

Regenerative medicine company Mesoblast Ltd.’s stock sank nearly 57% on the news that it received a second U.S. FDA complete response letter (CRL) following the resubmission of its BLA for allogeneic stem cell treatment remestemcel-L in children with steroid-refractory acute graft-vs.-host disease. In the CRL, issued a few days after the Aug. 2 PDUFA date, the agency said it requires more data to support approval.

Despite a newly signed $645 million commercialization deal with Neuraxpharm Group for multiple sclerosis drug Briumvi (ublituximab) in Europe, shares of TG Therapeutics Inc. (NASDAQ:TGTX) tanked by 49.3% on Aug. 1 due to a perceived miss in U.S. net sales for the anti-CD20 monoclonal antibody during its first full quarter on the U.S. market.

Dismissed as undruggable in the early 2000s, Src homology 2 domains are now viable and at the heart of Recludix Pharma Inc.’s new deal with Sanofi SA’s U.S. unit. The two will collaborate on developing and commercializing treatments for immunological and inflammatory diseases. In the near term, Recludix will get $125 million, but long term it could add up to $1.2 billion in milestones. Recludix could also bring in up to double-digit royalties on possible future product sales.

Although shares of TG Therapeutics Inc. took a hit on word of positive phase III data in multiple sclerosis (MS) from competitor Genentech, a unit of Roche Holding AG, the results may not end up affecting much the market showdown between the CD20 players.

In brain research, be it basic or clinical, neurons have long hogged the limelight. But at the 2023 European Meeting on Glial Cells in Health and Disease, neurons take a back seat to glia – cell types that have often been described as support cells and treated as an afterthought, but that play critical roles in all aspects of brain function, including information processing.

Tolerogenixx GmbH raised €7 million (US$7.6 million) in an extension to its series A round, which will enable it to continue phase IIb development of a cell therapy that induces donor-specific immune tolerance in kidney transplant recipients. At the same time, the company disclosed five-year follow-up data from a phase Ib trial of the therapy, which demonstrated that recipients continue to have stable graft function and to avoid acute rejection and severe opportunistic infections while on a reduced regimen of immunosuppressive drugs.