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NCT03909152 · ClinicalTrials.gov registry record · Phase 2

A Study of Onapristone ER Alone Or In Combination With Anastrozole in Gynecologic Cancers That Respond to Progesterone

A Phase 2 study, sponsored by Memorial Sloan Kettering Cancer Center.

Completed
Registry status
Phase 2
Development phase
34
Enrollment target

NCT03909152: Completed Phase 2 study, sponsored by Memorial Sloan Kettering Cancer Center.

NCT03909152 is a Phase 2 study that has completed, run by Memorial Sloan Kettering Cancer Center. The registered enrollment target is 34 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (74% lower). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

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The verdict

NCT03909152, a Phase 2 study, has completed, sponsored by Memorial Sloan Kettering Cancer Center.

COMPLETED
Registry status
Phase 2
Development phase
34 participants
Enrollment target

Study Summary

The purpose of this study is to test any good and bad effect of the study drug, onapristone extended-release (ER) alone and in combination with anastrozole.

Primary Outcome

as determined by RECIST 1.1 response. Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = Complete Response + Partial Response (CR + PR)

Interventions

  • DRUG Onapristone ER
  • DRUG Onapristone ER + Anastrozole

Trial Details

FieldValue
Enrollment Target 34 participants
Start Date 2019-05-02
Est. Completion 2024-09-03
Phase Phase 2
Memorial Sloan Kettering Cancer Center

1,884 total trials

What the finished NCT03909152 record still lists

NCT03909152 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 34 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (74% lower).

The record links to 0 conditions, and to 2 interventions - of which Onapristone ER is the first listed.

NCT03909152 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03909152 about?

NCT03909152 is a clinical study titled "A Study of Onapristone ER Alone Or In Combination With Anastrozole in Gynecologic Cancers That Respond to Progesterone". The purpose of this study is to test any good and bad effect of the study drug, onapristone extended-release (ER) alone and in combination with anastrozole.

What is the current status of trial NCT03909152?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 34 participants. The study started on 2019-05-02. Estimated completion is 2024-09-03.

What interventions are being tested in trial NCT03909152?

The interventions under investigation include: Onapristone ER (DRUG), Onapristone ER + Anastrozole (DRUG).

Who is sponsoring clinical trial NCT03909152?

This trial is sponsored by Memorial Sloan Kettering Cancer Center, which has 1,884 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03909152's enrollment target sits among peer trials

34 1539th of 2000 higher than 448 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT03909152, the US trial registry maintained by the National Library of Medicine. NCT03909152 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.