Hydroxychloroquine,Hydroxychloroquine,Azithromycin in the Treatment of SARS CoV-2 Infection (WU352)
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ClinicalTrials.gov Identifier: NCT04341727 |
Recruitment Status :
Terminated
(DSMB recommended study suspension slow accrual)
First Posted : April 10, 2020
Last Update Posted : October 7, 2021
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Coronavirus Infection | Drug: Hydroxychloroquine Sulfate Drug: Azithromycin Drug: Chloroquine Sulfate | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 31 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | WU 352: Open-label, Randomized Controlled Trial of Hydroxychloroquine Alone or Hydroxychloroquine Plus Azithromycin or Chloroquine Alone or Chloroquine Plus Azithromycin in the Treatment of SARS CoV-2 Infection |
Actual Study Start Date : | April 4, 2020 |
Actual Primary Completion Date : | April 1, 2021 |
Actual Study Completion Date : | April 1, 2021 |

Arm | Intervention/treatment |
---|---|
Active Comparator: Hydroxychloroquine alone
Arm 1: Hydroxychloroquine 400mg orally twice a day for one day, followed by 200mg twice a day for four consecutive days (Five days in total). The drug will be supplied in 200mg tablets.
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Drug: Hydroxychloroquine Sulfate
anti-rheumatic drug (DMARD)
Other Name: HYDROXYCHLOROQUINE Plaquenil |
Active Comparator: Hydroxychloroquine plus azithromycin
Arm 2: Hydroxychloroquine 400mg orally twice a day for one day, followed by 200mg twice a day for four consecutive days (Five days in total). The drug will be supplied in 200mg tablets. AND Azithromycin 500mg orally once, followed by 250mg daily for four consecutive days (five days total). The drug will be supplied in 250mg tablets. |
Drug: Hydroxychloroquine Sulfate
anti-rheumatic drug (DMARD)
Other Name: HYDROXYCHLOROQUINE Plaquenil Drug: Azithromycin Antibiotic
Other Name: COMMON BRAND(S): Zithromax GENERIC NAME(S): Azithromycin |
Active Comparator: Chloroquine alone
Arm 3: Chloroquine phosphate 1000mg orally once, followed in 12 hours by 500mg, then 500mg orally twice daily for 4 days (Five days in total). The drug will be supplied in 500mg tablets.
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Drug: Chloroquine Sulfate
Antimalarial
Other Name: Aralen GENERIC NAME(S): Chloroquine Phosphate |
Active Comparator: Chloroquine plus azithromycin
Arm 4: Chloroquine phosphate 1000mg orally once, followed in 12 hours by 500mg, then 500mg orally twice daily for 4 days (Five days in total). The drug will be supplied in 500mg tablets. AND Azithromycin 500mg orally once, followed by 250mg daily for 4 consecutive days (5 days total).The drug will be supplied in 250mg tablets. |
Drug: Azithromycin
Antibiotic
Other Name: COMMON BRAND(S): Zithromax GENERIC NAME(S): Azithromycin Drug: Chloroquine Sulfate Antimalarial
Other Name: Aralen GENERIC NAME(S): Chloroquine Phosphate |
- Hours to recovery [ Time Frame: 42 days ]Time (hours) from randomization to recovery defined as 1) absence of fever, as defined as at least 48 hours since last temperature ≥ 38.0°C without the use of fever-reducing medications AND 2) absence of symptoms of greater than mild severity for 24 hours AND 3) not requiring supplemental oxygen beyond pre-COVID baseline AND 4) freedom from mechanical ventilation or death
- Time fever resolution [ Time Frame: 42 days ]Time to resolution of fever defined as at least 48 hours since last temperature ≥ 38.0°C without the use of fever-reducing medications

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Hospitalization for management of SARS CoV-2 infection
- Positive SARS CoV-2 test
- Age >=18 years
- Provision of informed consent
- Electrocardiogram (ECG) ≤48 hours prior to enrollment
- Complete blood count, glucose-6 phosphate-dehydrogenase (G6PD), comprehensive metabolic panel and magnesium ≤48 hours prior to enrollment from standard of care.
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If participating in sexual activity that could lead to pregnancy, individuals of reproductive potential who can become pregnant must agree to use contraception throughout the study. At least one of the following must be used throughout the study:
- Condom (male or female) with or without spermicide
- Diaphragm or cervical cap with spermicide
- Intrauterine device (IUD)
- Hormone-based contraceptive
Exclusion Criteria:
- Contraindication or allergy to chloroquine, hydroxychloroquine or azithromycin
- Current use hydroxychloroquine, chloroquine or azithromycin
- Concurrent use of another investigational agent
- Invasive mechanical ventilation
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Participants who have any severe and/or uncontrolled medical conditions such as:
- unstable angina pectoris,
- symptomatic congestive heart failure,
- myocardial infarction,
- cardiac arrhythmias or know prolonged QTc >470 males, >480 female on ECG
- pulmonary insufficiency,
- epilepsy (interaction with chloroquine),
- Prior retinal eye disease
- Concurrent malignancy requiring chemotherapy
- Known Chronic Kidney disease, eGFR<10 or dialysis
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G-6-PD deficiency, if unknown requires G6PD testing prior to enrollment
- Known Porphyria
- Known myasthenia gravis
- Currently pregnant or planning on getting pregnant while on study
- Breast feeding
- AST/ALT >five times the upper limit of normal ULN*
- Bilirubin >five times the ULN*
- Magnesium <1.4 mEq/L*
- Calcium <8.4mg/dL >10.6mg/dL*
- Potassium <3.3 >5.5 mEg/L*

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): NCT04341727
United States, Missouri | |
Washington University School of Medicine Infectious Disease Clinical Research Unit | |
Saint Louis, Missouri, United States, 63110 | |
Washington University School of Medicine | |
Saint Louis, Missouri, United States, 63110 |
Principal Investigator: | Jane O'Halloran, MD PhD | Washington University School of Medicine (ID-CRU) |
Responsible Party: | Jane O'Halloran, Assistant Professor in Medicine, Washington University School of Medicine |
ClinicalTrials.gov Identifier: | NCT04341727 |
Other Study ID Numbers: |
202003188 |
First Posted: | April 10, 2020 Key Record Dates |
Last Update Posted: | October 7, 2021 |
Last Verified: | October 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Infections Communicable Diseases Coronavirus Infections COVID-19 Disease Attributes Pathologic Processes Coronaviridae Infections Nidovirales Infections RNA Virus Infections Virus Diseases Respiratory Tract Infections Pneumonia, Viral Pneumonia Lung Diseases Respiratory Tract Diseases |
Azithromycin Hydroxychloroquine Chloroquine Chloroquine diphosphate Anti-Bacterial Agents Anti-Infective Agents Antimalarials Antiprotozoal Agents Antiparasitic Agents Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action Antirheumatic Agents Amebicides Anti-Inflammatory Agents, Non-Steroidal Analgesics, Non-Narcotic |