SATURDAY, JULY 18, 2026|No. 7781
Business · Law · Pharma

Investor Lawsuit Alleges Regeneron Misled on Cancer Drug Trial Results

A proposed class action claims Regeneron Pharmaceuticals overstated the promise of a skin cancer drug trial before disclosing it failed to meet its main goal.

A proposed class action lawsuit claims Regeneron Pharmaceuticals misled investors about a skin cancer drug trial, causing a stock drop.
A proposed class action lawsuit claims Regeneron Pharmaceuticals misled investors about a skin cancer drug trial, causing a stock drop.
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Regeneron Pharmaceuticals Inc. overhyped its third-phase study of a drug combination to treat late-stage skin cancer before disclosing that the trial missed its main goal, a proposed class action said.

Regeneron and top executives touted its phase III clinical trial of fianlimab in combination with cemiplimab to be a first-line treatment for metastatic or locally-advanced melanoma. But they mischaracterized a risk of the study failing caused by a prolonged slowdown in event accruals, an investor said in the complaint filed Thursday.

“Defendants repeatedly and falsely characterized this slowdown as a likely positive development that reflected the durable efficacy of the ...

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