Sanofi SA ((SNY)), Sanofi ((DE:SNW)), Sanofi ((SNYNF)) announced an update on their ongoing clinical study.
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Sanofi is conducting a Phase 3 extension study titled An Interventional, Phase 3 Extension Study to Investigate Long-term Safety and Tolerability of Tolebrutinib in Participants With Relapsing Multiple Sclerosis, Primary Progressive Multiple Sclerosis, or Nonrelapsing Secondary Progressive Multiple Sclerosis. The study aims to assess the long-term safety and tolerability of tolebrutinib, a drug intended for multiple sclerosis patients who participated in previous trials. The significance lies in its potential to offer a long-term treatment option for various types of multiple sclerosis.
The study tests the drug tolebrutinib, administered as an oral tablet, and aims to provide a long-term treatment option for multiple sclerosis. Participants will receive open-label tolebrutinib, with some continuing their previous treatment if not eligible for the new drug.
This is an interventional study with a single-group assignment model, meaning all participants receive the same treatment without randomization. The primary purpose is treatment, and there is no masking involved, allowing both researchers and participants to know the treatment being administered.
The study began on April 16, 2024, with primary completion and estimated completion dates yet to be announced. The last update was submitted on August 4, 2025. These dates are crucial for tracking the study’s progress and anticipating results.
The study’s progress could positively impact Sanofi’s stock performance by potentially expanding its market share in the multiple sclerosis treatment sector. Investor sentiment may be influenced by the success of this study, especially given the competitive landscape of multiple sclerosis treatments.
The study is ongoing, with further details available on the ClinicalTrials portal.