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NCT04381988 · ClinicalTrials.gov registry record · Phase 2

A Study of Hydroxychloroquine vs Placebo to Prevent COVID-19 Infection in Patients Receiving Radiotherapy

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

Terminated
Registry status
Phase 2
Development phase
4
Enrollment target

NCT04381988: Clinical Trial Phase 2 study, sponsored by Memorial Sloan Kettering Cancer Center.

NCT04381988 is a Phase 2 study that was terminated before completion, run by Memorial Sloan Kettering Cancer Center. The registered enrollment target is 4 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (97% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04381988, a Phase 2 study, was terminated before completion, sponsored by Memorial Sloan Kettering Cancer Center.

TERMINATED
Registry status
Phase 2
Development phase
4 participants
Enrollment target

Study Summary

The researchers are doing this study to find out whether the study drug hydroxychloroquine can prevent infection with the COVID-19 virus, compared with placebo, in people who are receiving radiation therapy for their cancer. The placebo used in this study is a tablet that looks the same as the study drug and is taken in the same way, but it does not contain any active ingredients.

Primary Outcome

Any patients who are enrolled and subsequently test positive for SARS-CoV-2 by RT-PCR (outside RT-PCR test results allowed) at any point during the 9 weeks following enrollment will be an event that is considered in the 9-week SARS-CoV-2 infection rate primary endpoint.

Interventions

  • OTHER Placebo
  • RADIATION Radiation therapy
  • DRUG Hydroxychloroquine

Trial Details

FieldValue
Enrollment Target 4 participants
Start Date 2020-05-07
Est. Completion 2021-04-21
Phase Phase 2
Memorial Sloan Kettering Cancer Center

1,884 total trials

Why NCT04381988 stopped before completion

NCT04381988 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 4 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (97% lower).

The record links to 0 conditions, and to 3 interventions - of which Placebo is the first listed.

NCT04381988 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04381988 about?

NCT04381988 is a clinical study titled "A Study of Hydroxychloroquine vs Placebo to Prevent COVID-19 Infection in Patients Receiving Radiotherapy". The researchers are doing this study to find out whether the study drug hydroxychloroquine can prevent infection with the COVID-19 virus, compared with placebo, in people who are receiving radiation therapy for their cancer. The placebo used in this study is a tablet that looks the same as the study...

What is the current status of trial NCT04381988?

This trial is currently terminated. It is a Phase 2 study. The enrollment target is 4 participants. The study started on 2020-05-07. Estimated completion is 2021-04-21.

What interventions are being tested in trial NCT04381988?

The interventions under investigation include: Placebo (OTHER), Radiation therapy (RADIATION), Hydroxychloroquine (DRUG).

Who is sponsoring clinical trial NCT04381988?

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 NCT04381988's enrollment target sits among peer trials

4 2001st of 2000 the lowest 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 NCT04381988, the US trial registry maintained by the National Library of Medicine. NCT04381988 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.