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Pfizer’s blood cancer drug meets main goal in late-stage trial

By Thomson Reuters Apr 29, 2026 | 6:45 AM

April 29 (Reuters) – Pfizer said on Wednesday its drug Elrexfio met the main goal in a late-stage trial ​that tested the blood cancer treatment ‌in patients who received at least one prior line of treatment.

Here are further details on the trial:

• Elrexfio has the U.S. Food and ‌Drug ​Administration’s accelerated approval for ⁠treating patients with multiple ⁠myeloma who have received at least four prior lines of treatment.

• Multiple myeloma is a cancer of the plasma ​cells, a type of white blood cell in the bone marrow that helps ⁠fight infection.

• Pfizer said ⁠the drug showed clinically meaningful ​improvement in progression free survival, or living ​without the disease worsening, when compared to ‌standard of care treatment.

• The trial remains ongoing to assess overall survival, a key secondary goal, as the data was ⁠not yet available at the time of this interim analysis, the company said.

• The company ⁠said the ‌trial data will be discussed ⁠with global health authorities.

• Pfizer ​recorded ‌Elrexfio sales of $304 million in ​2025.

• Multiple ⁠myeloma accounts for roughly 1% to 2% of all cancers and 10% of blood cancers. Over 32,000 new cases are diagnosed annually in the US.

(Reporting by Christy Santhosh ​in Bengaluru)