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REG-Genmab Announces Rinatabart Sesutecan (Rina-S®) Demonstrates Statistically Significant Improvement in Progression-Free Survival and Overall Survival in Patients with Platinum-Resistant Ovarian Cancer

$GMABPress releaseOct 23, 2026, 11:55 AM ETRead the release

Genmab's Phase 3 RAINFOL-02 trial of Rina-S in platinum-resistant ovarian cancer met its primary PFS endpoint and its key secondary OS endpoint with statistical significance, showing a 71% reduction in the risk of progression or death in the intent-to-treat population (HR 0.29) and a 57% reduction in the risk of death (OS HR 0.43). This is the first Phase 3 readout from the Rina-S program, and efficacy held regardless of FRα expression level or prior mirvetuximab treatment, positioning Rina-S for a broad patient population in a setting with poor prognosis and limited options.

Key figures

Drug Name
Rinatabart Sesutecan (Rina-S; GEN1184)
Phase Of Trial
Phase 3
Os hr itt
0.43 (95% CI, 0.31-0.59; p<0.0001)
Os hr pas
0.44 (95% CI, 0.31-0.63; p<0.0001)
Pfs hr itt
0.29 (95% CI, 0.23-0.37; p<0.0001)
Pfs hr pas
0.33 (95% CI, 0.26-0.42; p<0.0001)
Itt population
N=584
Pas population
N=492

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