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NCT04336943 · ClinicalTrials.gov registry record · Phase 2

Durvalumab and Olaparib for the Treatment of Prostate Cancer in Men Predicted to Have a High Neoantigen Load

A Phase 2 study, sponsored by University of Washington.

Terminated
Registry status
Phase 2
Development phase
6
Enrollment target

NCT04336943: Clinical Trial Phase 2 study, sponsored by University of Washington.

NCT04336943 is a Phase 2 study that was terminated before completion, run by University of Washington. The registered enrollment target is 6 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (95% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04336943, a Phase 2 study, was terminated before completion, sponsored by University of Washington.

TERMINATED
Registry status
Phase 2
Development phase
6 participants
Enrollment target

Study Summary

This phase II trial studies how well durvalumab and olaparib work in treating prostate cancer in men predicted to have specific genetic mutations (a high neoantigen load). Immunotherapy with monoclonal antibodies, such as durvalumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. PARPs are proteins that help repair DNA mutations. PARP inhibitors, such as olaparib, can keep PARP from working, so tumor cells can't repair themselves, and they may stop growing. Giving durvalumab and olaparib may kill more tumor cells in patients with prostate cancer predicted to have a high neoantigen load.

Primary Outcome

Will assess if patients achieve undetectable PSA for post-prostatectomy patients (including those that also received salvage radiation) or PSA \< 0.5 ng/ml for post-definitive radiation patients.

Interventions

  • OTHER Quality-of-Life Assessment
  • BIOLOGICAL Durvalumab
  • DRUG Olaparib
  • OTHER Questionnaire Administration

Trial Details

FieldValue
Enrollment Target 6 participants
Start Date 2021-04-13
Est. Completion 2025-06-06
Phase Phase 2
University of Washington

1,048 total trials

Why NCT04336943 stopped before completion

NCT04336943 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 6 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (95% lower).

The record links to 0 conditions, and to 4 interventions - of which Quality-of-Life Assessment is the first listed.

NCT04336943 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04336943 about?

NCT04336943 is a clinical study titled "Durvalumab and Olaparib for the Treatment of Prostate Cancer in Men Predicted to Have a High Neoantigen Load". This phase II trial studies how well durvalumab and olaparib work in treating prostate cancer in men predicted to have specific genetic mutations (a high neoantigen load). Immunotherapy with monoclonal antibodies, such as durvalumab, may help the body's immune system attack the cancer, and may inter...

What is the current status of trial NCT04336943?

This trial is currently terminated. It is a Phase 2 study. The enrollment target is 6 participants. The study started on 2021-04-13. Estimated completion is 2025-06-06.

What interventions are being tested in trial NCT04336943?

The interventions under investigation include: Quality-of-Life Assessment (OTHER), Durvalumab (BIOLOGICAL), Olaparib (DRUG), Questionnaire Administration (OTHER).

Who is sponsoring clinical trial NCT04336943?

This trial is sponsored by University of Washington, which has 1,048 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04336943's enrollment target sits among peer trials

6 1996th of 2000 higher than 1 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 NCT04336943, the US trial registry maintained by the National Library of Medicine. NCT04336943 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.