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Hydroxychloroquine Monotherapy and in Combination With Azithromycin in Patients With Moderate and Severe COVID-19 Disease

A Multi-center, Randomized, Double-blinded, Placebo-controlled Study to Evaluate the Safety and Efficacy of Hydroxychloroquine Monotherapy and in Combination With Azithromycin in Patients With Moderate and Severe COVID-19 Disease

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04358081
Enrollment
20
Registered
2020-04-22
Start date
2020-05-01
Completion date
2020-07-27
Last updated
2021-10-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Covid-19

Keywords

covid19, covid 19, covid-19, coronavirus, SARS-CoV, SARS-CoV-2, novel coronavirus, adult, JWT629, acute respiratory syndrome coronavirus

Brief summary

Two recent studies have suggested that in patients with Covid19, treatment with hydroxychloroquine may shorten the duration of symptoms and improve viral clearance, an effect that appears most pronounced when combined with azithromycin. Hydroxychloroquine treatment may inhibit viral nucleic acid-mediated activation of various innate immune pathways, as well as blockade of lysosomal functions in cell types relevant for viral entry and antigen presentation. The purpose of the study was to determine if oral hydroxychloroquine monotherapy, or in combination with azithromycin results in clinical benefit in patients hospitalized with COVID19 pneumonia.

Interventions

DRUGHCQ

Hydroxychloroquine Monotherapy

DRUGHCQ+AZT

Hydroxychloroquine with azithromycin

DRUGPlacebo

Placebo

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Informed consent must be obtained prior to participation in the study 2. Adult patient ≥ 18 years old 3. Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV)-2 infection confirmed by polymerase chain reaction (PCR) test from respiratory tract specimen (e.g nasopharyngeal swab) 4. Onset of signs and symptoms of COVID19 illness ≤ 7 days prior to randomization (including but not limited to fever, cough, myalgias, fatigue, abnormal chest imaging) 5. Currently hospitalized or requiring hospitalization due to COVID-19 disease

Exclusion criteria

1. Use of other investigational drugs or newly approved COVID-19 treatments within 5-half lives or 30 days of enrolment 2. History of hypersensitivity to any of the study treatments or its excipients or to drugs of similar chemical classes 3. Participation in any other clinical trial of an experimental treatment for COVID-19 4. Expectation of concurrent treatment with any other agents or potential direct acting antiviral activity against SARS-Co V-2 during study drug dosing 5. Requires, in the judgement of the investigator, admission to the intensive care unit (ICU) or mechanical ventilatory support (invasive or non-invasive) prior to first dose of study drug (There might be a patient who cannot be admitted to the ICU, even if the patient's condition is severe enough, due to administrative reasons under the current circumstances. This case is also considered under admission to the ICU judged by the investigator) 6. Evidence of cytokine storm syndrome or multi-organ system failure 7. Confirmed co-infection with influenza 8. Creatinine clearance \< 45 mL/min or requiring acute renal replacement therapy 9. History or current diagnosis of ECG abnormalities indicating significant risk of safety for participants participating in the study 10. Any other condition which in the opinion of the investigator, would put the safety of the participant at risk, impede compliance or hinder completion of the study 11. Pregnant or nursing (lactating) women 12. Women of child-bearing potential, defined as all women physiologically capable of becoming pregnant, unless they agree to use basic methods of contraception during dosing of study treatment.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Who Achieved Clinical Response by Day 1515 daysClinical response was defined as a) discharged alive; or b) No need for mechanical ventilation in any participants and no need for supplemental oxygen requirement (SpO2) in participants without pre-morbid O2 requirement.

Secondary

MeasureTime frameDescription
Number of Participants Who Achieved Viral Clearance6 days and 10 DaysNumber and percentage of participants with negative or below LLOQ SARS-COV-2 based on polymerase chain reaction (PCR) test
Number of Participants Discharged or Ready for Discharge15 daysNumber of participants who received hydrochloroquine plus azithromycin relative to placebo who were discharged from hospital
Time to Return to Pre-morbid Supplemental Oxygen Requirement in Participants Receiving Hydrochloroquine or Hydrochloroquine Plus Azithromycin Relative to Placebo15 daysNumber of participants requiring supplemental oxygen at the time of randomization who returned to pre-morbid supplemental oxygen

Countries

United States

Participant flow

Recruitment details

Study was conducted in 9 centers in the United States. A total of 20 participants were randomized, of whom 19 were treated.

Pre-assignment details

One patient was mis-randomized and never received any treatment. This patient has creatine clearance level \<45 mL/min or required acute renal replacement therapy and therefore was not eligible for inclusion in the study.

Participants by arm

ArmCount
Arm 1: Hydroxychloroquine + Aithromycin Placebo
Hydroxychloroquine 600mg o.d. as loading dose (Day 1) +followed by 200mg t.i.d was initiated within 8-12 hours of the loading dose (not to exceed 12 hours) Azithromycin placebo o.d.
7
Arm 2: Hydroxychloroquine + Azithromycin
Hydroxychloroquine 600 mg o.d. as a loading dose (Day 1) followed by 200 mg t.i.d. was initiated within 8-12 hours of the loading dose (not to exceed 12 hours) Azithromycin: 500 mg as a loading dose (Day 1) followed by 250 mg o.d. Day 2 - Day 5
7
Arm 3: Hydroxychloroquine Placebo + Azithromycin Placebo
Hydroxychloroquine placebo o.d. (day 1) followed by hydroxychloroquine placebo t.i.d Azythromycin placebo o.d.
5
Total19

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Study Completion PhaseDeath001
Study Completion PhaseLost to Follow-up101
Treatment Phase of StudyAdverse Event101
Treatment Phase of StudyPhysician Decision201
Treatment Phase of StudyProtocol Violation100
Treatment Phase of StudyWithdrawal by Subject011

Baseline characteristics

CharacteristicArm 2: Hydroxychloroquine + AzithromycinArm 3: Hydroxychloroquine Placebo + Azithromycin PlaceboArm 1: Hydroxychloroquine + Aithromycin PlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
3 Participants0 Participants0 Participants3 Participants
Age, Categorical
Between 18 and 65 years
4 Participants5 Participants7 Participants16 Participants
Age, Continuous60.9 years
STANDARD_DEVIATION 12.5
55.2 years
STANDARD_DEVIATION 11.1
45.9 years
STANDARD_DEVIATION 10.6
53.8 years
STANDARD_DEVIATION 12.7
Race/Ethnicity, Customized
Asian
0 Participants0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Black or African American
1 Participants0 Participants2 Participants3 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Unknown
3 Participants2 Participants2 Participants7 Participants
Race/Ethnicity, Customized
White
3 Participants3 Participants1 Participants7 Participants
Sex: Female, Male
Female
1 Participants3 Participants3 Participants7 Participants
Sex: Female, Male
Male
6 Participants2 Participants4 Participants12 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 70 / 71 / 51 / 19
other
Total, other adverse events
4 / 75 / 72 / 511 / 19
serious
Total, serious adverse events
1 / 70 / 72 / 53 / 19

Outcome results

Primary

Number of Participants Who Achieved Clinical Response by Day 15

Clinical response was defined as a) discharged alive; or b) No need for mechanical ventilation in any participants and no need for supplemental oxygen requirement (SpO2) in participants without pre-morbid O2 requirement.

Time frame: 15 days

Population: Full Analysis Set (FAS) was comprised of all participants to whom study treatment had been assigned by randomization excluding one mis-randomized participant.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm 1: Hydroxychloroquine + Aithromycin PlaceboNumber of Participants Who Achieved Clinical Response by Day 157 Participants
Arm 2: Hydroxychloroquine + AzithromycinNumber of Participants Who Achieved Clinical Response by Day 157 Participants
Arm 3: Hydroxychloroquine Placebo + Azithromycin PlaceboNumber of Participants Who Achieved Clinical Response by Day 154 Participants
Secondary

Number of Participants Discharged or Ready for Discharge

Number of participants who received hydrochloroquine plus azithromycin relative to placebo who were discharged from hospital

Time frame: 15 days

Population: FAS

ArmMeasureValue (NUMBER)
Arm 1: Hydroxychloroquine + Aithromycin PlaceboNumber of Participants Discharged or Ready for Discharge7 participants
Arm 2: Hydroxychloroquine + AzithromycinNumber of Participants Discharged or Ready for Discharge7 participants
Arm 3: Hydroxychloroquine Placebo + Azithromycin PlaceboNumber of Participants Discharged or Ready for Discharge4 participants
Secondary

Number of Participants Who Achieved Viral Clearance

Number and percentage of participants with negative or below LLOQ SARS-COV-2 based on polymerase chain reaction (PCR) test

Time frame: 6 days and 10 Days

Population: FAS

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Arm 1: Hydroxychloroquine + Aithromycin PlaceboNumber of Participants Who Achieved Viral Clearanceby 6 days2 Participants
Arm 1: Hydroxychloroquine + Aithromycin PlaceboNumber of Participants Who Achieved Viral Clearanceby 10 days2 Participants
Arm 2: Hydroxychloroquine + AzithromycinNumber of Participants Who Achieved Viral Clearanceby 6 days3 Participants
Arm 2: Hydroxychloroquine + AzithromycinNumber of Participants Who Achieved Viral Clearanceby 10 days3 Participants
Arm 3: Hydroxychloroquine Placebo + Azithromycin PlaceboNumber of Participants Who Achieved Viral Clearanceby 6 days3 Participants
Arm 3: Hydroxychloroquine Placebo + Azithromycin PlaceboNumber of Participants Who Achieved Viral Clearanceby 10 days3 Participants
Secondary

Time to Return to Pre-morbid Supplemental Oxygen Requirement in Participants Receiving Hydrochloroquine or Hydrochloroquine Plus Azithromycin Relative to Placebo

Number of participants requiring supplemental oxygen at the time of randomization who returned to pre-morbid supplemental oxygen

Time frame: 15 days

Population: FAS

ArmMeasureValue (NUMBER)
Arm 1: Hydroxychloroquine + Aithromycin PlaceboTime to Return to Pre-morbid Supplemental Oxygen Requirement in Participants Receiving Hydrochloroquine or Hydrochloroquine Plus Azithromycin Relative to Placebo7 participants
Arm 2: Hydroxychloroquine + AzithromycinTime to Return to Pre-morbid Supplemental Oxygen Requirement in Participants Receiving Hydrochloroquine or Hydrochloroquine Plus Azithromycin Relative to Placebo6 participants
Arm 3: Hydroxychloroquine Placebo + Azithromycin PlaceboTime to Return to Pre-morbid Supplemental Oxygen Requirement in Participants Receiving Hydrochloroquine or Hydrochloroquine Plus Azithromycin Relative to Placebo4 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026