A Study of Hydroxycholoroquine Compared to Placebo as Treatment for People With COVID-19
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ClinicalTrials.gov Identifier: NCT04379492 |
Recruitment Status :
Withdrawn
(Emerging evidence does not support the use of HCQ for treatment or prevention of SARS -CoV2 infection. No pts have been enrolled.)
First Posted : May 7, 2020
Last Update Posted : October 30, 2020
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Condition or disease | Intervention/treatment | Phase |
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COVID-19 COVID19 Sars-CoV2 SARS-Cov-2 | Drug: Hydroxychloroquine Other: Placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 0 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Treatment |
Official Title: | Single-center, Phase II, Randomized Double-blind, Placebo-controlled Study of Hydroxychloroquine Compared to Placebo as Treatment for Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection |
Actual Study Start Date : | May 5, 2020 |
Actual Primary Completion Date : | September 25, 2020 |
Actual Study Completion Date : | September 25, 2020 |

Arm | Intervention/treatment |
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Experimental: Arm A - hydroxycholoroquine
Participants will receive hydroxycholoroquine (200-mg tablets) 2 tablets orally q12h for 2 doses on day 1 (load), followed by 1 tablet orally q12h for days 2-5.
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Drug: Hydroxychloroquine
Participants will receive hydroxycholoroquine (200-mg tablets) 2 tablets orally q12h for 2 doses on day 1 (load), followed by 1 tablet orally q12h for days 2-5. |
Placebo Comparator: Arm B - placebo
Participants will receive placebo
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Other: Placebo
Participants will receive masked placebo given as 2 tablets orally q12h for 2 doses on day 1, followed by 1 tablet orally q12h for days 2-5. |
- Clinical improvement on the Ordinal Scale for Clinical Improvement (OSCI) [ Time Frame: 14 days ]Clinical improvement is defined as a composite endpoint of a two-point clinical improvement on the Ordinal Scale for Clinical Improvement (OSCI). The OSCI is an ordinal scale of 9 severity levels (from 0 to 8) for COVID-19
- Number of participants requiring mechanical ventilation for respiratory failure [ Time Frame: 14 days ]Clinical improvement is defined as no mechanical ventilation for respiratory failure attributed to SARS-CoV-2 within 14 days of randomization.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age 18 years and older
- Subjects must have a documented positive test for the SARS-CoV-2 infection within 7 days of randomization
- Subject must be hospitalized within 72 hours of randomization
- Subjects must be receiving standard of care for SARS-CoV-2
- Subject/Legally Authorized Representative (LAR) must have the ability to understand and give informed consent
- Subject must be able to take and absorb hydroxychloroquine at the discretion of the investigator
Exclusion Criteria:
- Prior receipt of hydroxychloroquine for treatment or prophylaxis of SARS-CoV-2 or patient is taking hydroxychloroquine for other approved indications (e.g., lupus, rheumatoid arthritis)
- No documented SARS-CoV-2 infection
- Mechanical ventilation
- Known hypersensitivity to hydroxychloroquine or 4-aminoquinoline derivatives Preexisting retinopathy documented in medical history
- Pregnancy or Breastfeeding
- Concurrent use of any other quinine derivative (chloroquine, mefloquine) or rifamycins (rifampin, rifabutin)
- Antiarrhythmic medications (amiodarone, sotalol, dofetilide, procainamide, quinidine, flecainide)
- History of glucose-6-phosphate dehydrogenase deficiency
- Pre-treatment corrected QT interval (QTc) >500 milliseconds
- Pressor requirement to maintain blood pressure
- Alanine aminotransferase (ALT) and/or asparate aminotransferase (AST) level > 5X upper limit of normal
- Creatinine clearance <30 mL/min or requirement of dialysis or continuous venovenous hemofiltration
- Concomitant participation in a therapeutic trial for SARS-CoV-2 or receiving any experimental treatment for SARS-CoV-2 within 7 days of randomization
- Any condition that in the opinion of the principal investigator would prevent participation in the trial or would interfere with the trial endpoints

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04379492
United States, New York | |
Memorial Sloan - Kettering Cancer Center | |
New York, New York, United States, 10021 |
Principal Investigator: | Genovefa Papanicolaou, MD | Memorial Sloan Kettering Cancer Center |
Responsible Party: | Memorial Sloan Kettering Cancer Center |
ClinicalTrials.gov Identifier: | NCT04379492 |
Other Study ID Numbers: |
20-187 |
First Posted: | May 7, 2020 Key Record Dates |
Last Update Posted: | October 30, 2020 |
Last Verified: | October 2020 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org. |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Sars-CoV2 SARS-Cov-2 COVID-19 COVID19 |
Hydroxycholoroquine Memorial Sloan Kettering Cancer Center 20-187 |
COVID-19 Pneumonia, Viral Pneumonia Respiratory Tract Infections Infections Virus Diseases Coronavirus Infections Coronaviridae Infections Nidovirales Infections RNA Virus Infections |
Lung Diseases Respiratory Tract Diseases Hydroxychloroquine Antimalarials Antiprotozoal Agents Antiparasitic Agents Anti-Infective Agents Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action Antirheumatic Agents |