Radiopharmaceuticals require sophisticated infrastructure, with just-in-time radioactives delivered to patients who must isolate while receiving the therapy. Quality control and numerous layers of regulation makes for a daunting space to enter.
Supply issues are a “major concern for the whole industry and for the medical community as well, because they see targeted radiotherapy as a very promising field with very interesting results in the clinic, but they are concerned that drugs may not be available for a large number of patients, and it is a legitimate concern,” Orano Med SAS CEO Julien Dodet said.
Global interest in radiopharmaceuticals is growing, and some big deals in the space have sparked interest in the last few years. Novartis AG has spent about $6 billion in acquisitions and is seen as the global leader.
If its challenges can be overcome, radioligand therapy is poised to change the way many cancers are treated. It is also likely to become an example of how scientific advances, once they are translated successfully, can enable further insights in a bench-to-bedside-to-bench loop. David Piwnica-Worms, professor and chair of cancer systems imaging at The University of Texas MD Anderson Cancer Center, predicted that as radioligand therapy expands, many questions will be answered about both radiation biology and the interaction of radiation with the immune system more specifically.
After spending decades developing targeted chemotherapy and bringing a dozen or so compounds into the clinic, Fusion Pharmaceuticals Inc. Chief Scientific Officer Christopher Leamon switched careers to focus on radio-oncology because he saw the need for “a really strong bomb to target cancer to get it to respond.” That was radiotherapy, said Leamon, who was one of the scientific founders of Endocyte Inc., which Novartis AG acquired.
Junshi Biosciences Co. Ltd. and Rxilient Biotech Pte Ltd. are forming a joint venture (JV) to develop and commercialize Junshi’s PD-1 inhibitor, toripalimab, in nine Southeast Asian nations.
Astellas Pharma Inc.’s zolbetuximab, a monoclonal antibody targeting Claudin 18.2, met the primary endpoint for progression-free survival as well as secondary endpoints for overall survival in the phase III Glow trial in CLDN18.2-positive, HER2-negative, locally advanced unresectable or metastatic gastric or gastroesophageal junction adenocarcinoma.
The NMPA accepted a BLA from Astellas Pharma Inc. for enfortumab vedotin, which is designed for the treatment of patients with locally advanced or metastatic urothelial cancer who previously received treatment with a PD-1/L1 inhibitor and platinum-based chemotherapy.
Zhejiang Medicine Co. Ltd.’s subsidiary, Novocodex Biopharmaceuticals Inc., reported positive phase III study results for its humanized anti-HER2 monoclonal antibody-drug conjugate, ARX-788, in the treatment of patients with HER2-positive locally advanced or metastatic breast cancer in China.
China’s NMPA approved Shanghai Shengdi Pharmaceutical Co. Ltd.’s adebrelimab (SHR-1316) for first-line treatment of extensive-stage small-cell lung cancer (ES-SCLC) in combination with chemotherapy. The approval in mainland China makes adebrelimab the third domestic PD-L1 monoclonal antibody to make it to the domestic market. Shanghai Shengdi is a subsidiary of Jiangsu Hengrui Medicine Co. Ltd.