Regeneron Reviews Phase 3 Trial Results for Fianlimab
Written by Emily J. Thompson, Senior Investment Analyst
Updated: May 16 2026
0mins
Source: Newsfilter
- Trial Overview: Regeneron's Phase 3 trial did not achieve statistical significance for progression-free survival (PFS), although the high-dose fianlimab combination showed a numeric improvement of 5.1 months in median PFS, indicating that further validation of this treatment regimen is necessary.
- Patient Recruitment: The trial enrolled a total of 1,546 patients, randomized into different treatment groups, with the high-dose combination group (n=508) compared to the pembrolizumab monotherapy group (n=462), revealing a hazard ratio of 0.845, which is close to significance.
- Safety Assessment: No new safety signals were identified during the trial, suggesting that the combination of fianlimab and cemiplimab is comparable in safety to existing treatment options, providing a foundation for future clinical applications.
- Future Plans: Regeneron is conducting another Phase 3 head-to-head trial evaluating the efficacy of the high-dose fianlimab combination against Opdualag®, which is expected to provide additional data support for the clinical use of this drug.
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Analyst Views on REGN
Wall Street analysts forecast REGN stock price to rise
22 Analyst Rating
16 Buy
6 Hold
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Moderate Buy
Current: 614.980
Low
637.00
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808.50
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1057
Current: 614.980
Low
637.00
Averages
808.50
High
1057
About REGN
Regeneron Pharmaceuticals, Inc. is a fully integrated biotechnology company. The Company invents, develops, manufactures, and commercializes medicines for people with serious diseases. Its products and product candidates in development are designed to help patients with eye diseases, allergic and inflammatory diseases, cancer, cardiovascular and metabolic diseases, neurological diseases, hematologic conditions, infectious diseases, and rare diseases. The Company is accelerating drug development using its proprietary technologies, such as VelociSuite, which produces optimized fully human antibodies and new classes of bispecific antibodies. VelociSuite consists of VelocImmune, VelociGene, VelociMouse, VelociMab, Veloci-Bi, VelociT, VelociHum, and other related technologies. Its marketed products include EYLEA (aflibercept); Dupixent (dupilumab); Libtayo (cemiplimab); Ordspono (odronextamab); Kevzara (sarilumab); Itepekimab; Lynozyfic, and others.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
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