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Corcept strengthens its relacorilant hand

Corcept Therapeutics, which has already filed its glucocorticoid receptor antagonist relacorilant with the FDA for platinum-resistant ovarian cancer, strengthened its case on Thursday with final overall survival data from the supporting Rosella trial. The study found that relacorilant plus Abraxane decreased the risk of death by 35% versus Abraxane alone, with median OS of 16.0 and 11.9 months respectively. These numbers look similar to those in an interim OS analysis reported last year, but still sent Corcept’s stock up 15% on Thursday. The study previously hit on PFS, with a hazard ratio of 0.70; a filing followed in December, and an FDA decision is expected by 11 July. Still, the Rosella results weren’t as emphatic as those from a phase 2 trial, and there might be questions about the combination used; other possible treatment options in platinum-resistant ovarian cancer include doxorubicin, gemcitabine and topotecan. Corcept is testing an Abraxane and Avastin combo in the phase 2 Bella trial, which also has platinum-sensitive ovarian and endometrial cancer cohorts. And the group has ambitions in cervical, prostate and pancreatic cancers, where phase 2 trials are ongoing or planned. Corcept also has a next-gen project, nenocorilant.

 

Notable phase 2 & 3 trials of relacorilant

TrialSettingRegimenNote
Ph3 RosellaPlatinum-resistant ovarian cancer+ Abraxane, vs AbraxanePFS win announced Mar 2025; final OS data Jan 2026: HR=0.65
Ph2 Bella, Part APlatinum-resistant ovarian cancer+ Abraxane + Avastin, uncontrolledData due YE 2026
Ph2 Bella, Part BPlatinum-sensitive ovarian cancer (post-PARPi)+ Abraxane + Avastin, uncontrolledIn Nov 2025 Corcept said this was to begin “in coming weeks”
Ph2 Bella, Part C2nd/3rd-line endometrial cancer+ Abraxane, uncontrolledIn Nov 2025 Corcept said this was to begin “in coming weeks”
Ph2 IRB22-1318*High-risk localised prostate cancer+ Xtandi + ADT, vs Xtandi + ADT (neoadjuvant)Primary completion Oct 2027
Ph2 CORT125134-5581st-line PDAC+ Abraxane + gemcitabine, uncontrolledBegan Dec 2025
Ph2 w/ ARCAGY-GINECO*2nd/3rd-line cervical cancer+ AbraxaneIn Nov 2025 Corcept said this was to begin “in coming weeks”

Notes: *investigator-sponsored trial; ADT=androgen-deprivation therapy; PDAC=pancreatic ductal adenocarcinoma. Source: OncologyPipeline & clinicaltrials.gov.

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