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Imlunestrant

Phase 3

Low Grade Ovarian Serous Adenocarcinoma | Small molecule | Other |Karyopharm Therapeutics Inc.|Last Updated: Sep 21, 2026

Development status

Highest phase Phase 3 run by Eli Lilly and Company (NCT04975308)
Phase scored for KPTIPhase 2
Registered trials 9 across 2 sponsors since Jul 2021

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment60

FDA Designations

No designations recorded

Clinical trial landscape

Imlunestrant · 1 trial · 2 indications

Phase 2 1
NCT07832227Imlunestrant/Abemaciclib/Selinexor in Ovarian and EndometrialLow Grade Ovarian Serous Adenocarcinoma
NOT YET_RECRUITING60 Analytics
PHASE2NOT YET_RECRUITING
Imlunestrant/Abemaciclib/Selinexor in Ovarian and Endometrial
Low Grade Ovarian Serous AdenocarcinomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Objective Response Rate (ORR)
Treatment duration depends on individual response, evidence of disease progression, and treatment tolerance. On average, up to 1 year.

ORR is defined as the percentage of participants achieving complete response (CR) or partial response (PR) on treatment based on RECIST 1.1 criteria. Per RECIST 1.1 for target lesions: CR is complete disappearance of all target lesions and PR is at least a 30% decrease in the sum of longest diameter (LD) of target lesions, taking as reference baseline sum LD. PR or better overall response assumes at a minimum incomplete response/stable disease (SD) for the evaluation of non-target lesions and absence of new lesions.

Secondary Endpoints

Progression-Free Survival at 6 Months (PFS6)
6 months
Median Overall Survival (OS)
Survival status is assessed every 6 months for up to 3 years following the end-of-treatment assessment, or until death, whichever occurs first. Treatment duration depends on individual response, disease progression, and treatment tolerance.
Median Progression-Free Survival (PFS)
Tumor assessments are performed every 8 weeks during treatment. Treatment duration depends on individual response, evidence of disease progression, and treatment tolerance. On average, up to 3 years.
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
1A - Low grade serous ovarian cancer cohortEXPERIMENTALParticipants in Cohort 1A receive combination treatment with imlunestrant, abemaciclib, and selinexor. Treatment is outpatient, with a 14-day Cycle 0 followed by 28-day cycles.
1B - Endometrioid endometrial cancer cohortEXPERIMENTALParticipants in Cohort 1A receive combination treatment with imlunestrant, abemaciclib, and selinexor. Treatment is outpatient, with a 14-day Cycle 0 followed by 28-day cycles.

Interventions

NameTypeDescription
ImlunestrantDRUGOral study drug Taken once per day
AbemaciclibDRUGOral study drug Taken twice per day
SelinexorDRUGOral study drug Taken once per week
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Eligibility Criteria

Age Range18 Years to N/A
SexFEMALE
Healthy VolunteersNo

Inclusion Criteria: * For Cohort 1A: Participants must have histologically confirmed diagnosis of low-grade serous carcinoma of ovary, fallopian tube or peritoneum that is recurrent or metastatic and/or resistant to standard therapies; original diagnosis of de novo low-grade serous carcinoma or ori...

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Recent Changes (Last 90 Days)

LOWSep 21, 2026NCT07832227NEW_TRIAL: changed
LOWSep 21, 2026NCT07832227NEW_TRIAL: changed