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NCT01784523 · ClinicalTrials.gov registry record · Phase 3

Hydroxychloroquine for the First Thrombosis Prevention in Antiphospholipid Antibody Positive Patients

A Phase 3 study, sponsored by Hospital for Special Surgery, New York.

Terminated
Registry status
Phase 3
Development phase
11
Enrollment target

NCT01784523: Clinical Trial Phase 3 study, sponsored by Hospital for Special Surgery, New York.

NCT01784523 is a Phase 3 study that was terminated before completion, run by Hospital for Special Surgery, New York. The registered enrollment target is 11 participants, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (99% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT01784523, a Phase 3 study, was terminated before completion, sponsored by Hospital for Special Surgery, New York.

TERMINATED
Registry status
Phase 3
Development phase
11 participants
Enrollment target

Study Summary

In this multi-center international study, our aim is to determine the effectiveness of HCQ for primary thrombosis prophylaxis in persistently aPL-positive but thrombosis-free patients without systemic autoimmune diseases.

Primary Outcome

To determine the efficacy of Hydroxychloroquine in the primary thrombosis prevention of persistently aPL-positive but thrombosis free patients with no other systemic autoimmune diseases over the five year study period.

Interventions

  • DRUG Hydroxychloroquine

Trial Details

FieldValue
Enrollment Target 11 participants
Start Date 2013-02
Est. Completion 2015-09-30
Phase Phase 3

Why NCT01784523 stopped before completion

NCT01784523 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 11 participants, a relatively small participant target, below the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (99% lower).

The record links to 0 conditions, and to 1 intervention - of which Hydroxychloroquine is the first listed.

NCT01784523 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01784523 about?

NCT01784523 is a clinical study titled "Hydroxychloroquine for the First Thrombosis Prevention in Antiphospholipid Antibody Positive Patients". In this multi-center international study, our aim is to determine the effectiveness of HCQ for primary thrombosis prophylaxis in persistently aPL-positive but thrombosis-free patients without systemic autoimmune diseases.

What is the current status of trial NCT01784523?

This trial is currently terminated. It is a Phase 3 study. The enrollment target is 11 participants. The study started on 2013-02. Estimated completion is 2015-09-30.

What interventions are being tested in trial NCT01784523?

The interventions under investigation include: Hydroxychloroquine (DRUG).

Who is sponsoring clinical trial NCT01784523?

This trial is sponsored by Hospital for Special Surgery, New York, which has 194 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01784523's enrollment target sits among peer trials

11 1989th of 2000 higher than 12 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 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 NCT01784523, the US trial registry maintained by the National Library of Medicine. NCT01784523 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.