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Treatment for COVID-19 in High-Risk Adult Outpatients

Efficacy of Novel Agents for Treatment of SARS-CoV-2 Infection Among High-Risk Outpatient Adults: An Adaptive Randomized Platform Trial

Status
Terminated
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04354428
Enrollment
289
Registered
2020-04-21
Start date
2020-04-16
Completion date
2020-11-30
Last updated
2022-08-08

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

Conditions

COVID-19, SARS-CoV-2

Keywords

Outpatient, Treatment, COVID-19

Brief summary

This is a randomized trial for the treatment of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in high-risk adults not requiring hospital admission.The overarching goal of this study is to assess the effectiveness of interventions on the incidence of lower respiratory tract infection (LRTI) progression among high-risk adult outpatients with SARS-CoV-2 infection to inform public health control strategies.

Detailed description

This is a randomized, multi-center, placebo-equivalent (ascorbic acid + folic acid)-controlled, blinded platform trial. Eligible participants will be enrolled and randomized to Hydrocychloroquine (HCQ) + placebo (folic acid), HCQ + azithromycin, lopinavir-ritonavir (LPV/r) or placebo (ascorbic acid + folic acid). Initially, this study will enroll up to 495 eligible adults ( with high risk for Lower respiratory tract infection (LRTI) progression at baseline who are PCR-confirmed SARS-CoV-2 infection (165 per arm). An additional cohort of 135 eligible adults without risk factors for LRTI progression at baseline who are PCR-confirmed SARS-CoV-2 infection will be enrolled for the co-primary virologic outcome. During the 28 study days, participants will take the medication, complete surveys, collect mid nasal swab for viral quantification, and assess symptoms for progression to LRTI. Additional arms will be added should new potential agents be discovered or combination treatments be proposed. In addition, arms may be dropped prior to completion if deemed futile or if there is a safety signal.

Interventions

DRUGAscorbic Acid

Eligible participants in a household randomized to this study arm will receive ascorbic acid only or ascorbic acid and additional drug therapy

DRUGHydroxychloroquine Sulfate

Eligible participants in a household randomized to this study arm will receive hydrochloroquine and folic acid therapy

DRUGAzithromycin

Eligible participants in a household randomized to this study arm will receive hydrochloroquine and azithromycin therapy

DRUGFolic Acid

Eligible participants in a household will receive folic acid and an additional intervention drug

DRUGLopinavir 200 MG / Ritonavir 50 MG [Kaletra]

Eligible participants in a household randomized to this study arm will receive lopinavir-ritonavir therapy

Sponsors

Bill and Melinda Gates Foundation
CollaboratorOTHER
University of Washington
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
Yes

Inclusion criteria

* Men or women 18 to 80 years of age, inclusive, at the time of signing the informed consent * Willing and able to provide informed consent * Laboratory confirmed SARS-CoV-2 infection, with test results within past 72 hours * COVID-19 symptoms, based on the following criteria: At least TWO of the following symptoms: Fever (≥ 38ºC), chills, rigors, myalgia, headache, sore throat, new olfactory and taste disorder(s), OR o At least ONE of the following symptoms: cough, shortness of breath or difficulty breathing (Lopinavir-Ritonavir Platform) * Access to device and internet for Telehealth visits * At increased risk of developing severe COVID-19 disease (at least one of the following) 1. Age ≥60 years 2. Presence of pulmonary disease, specifically moderate or severe persistent asthma, chronic obstructive pulmonary disease, pulmonary hypertension, emphysema 3. Diabetes mellitus (type 1 or type 2), requiring oral medication or insulin for treatment 4. Hypertension, requiring at least 1 oral medication for treatment 5. Immunocompromised status due to disease (e.g., those living with human immunodeficiency virus with a CD4 T-cell count of \<200/mm3) 6. Immunocompromised status due to medication (e.g., persons taking 20 mg or more of prednisone equivalents a day, anti-inflammatory monoclonal antibody therapies, or cancer therapies) 7. Body mass index ≥30 (self-reported)

Exclusion criteria

* Known hypersensitivity to HCQ or other 4-aminoquinoline compounds * Known hypersensitivity to azithromycin or other azalide or macrolide antibiotics * Currently hospitalized * Signs of respiratory distress prior to randomization, including respiratory rate \>24 * Current medications include HCQ * Concomitant use of other anti-malarial treatment or chemoprophylaxis * History of retinopathy of any etiology * Psoriasis * Porphyria * Chronic kidney disease (Stage IV or receiving dialysis) * Known bone marrow disorders with significant neutropenia (polymorphonuclear leukocytes \<1500) or thrombocytopenia (\<100 K) * Concomitant use of digoxin, cyclosporin, cimetidine, amiodarone, or tamoxifen * Known cirrhosis * Known personal or family history of long QT syndrome * History of coronary artery disease with a history of graft or stent * History of heart failure, Class 2 or greater using the New York Heart Association functional class * Taking medications associated with prolonged QT and known risk of torsades de points. These medications may include some antipsychotic and antidepressant medications. (Lopinavir-Ritonavir Platform) * Taking medications associated with prolonged QT such as antipsychotic medications or antidepressants (e.g., citalopram, venlafaxine, and bupropion) and unable to stop during the trial * Taking warfarin (Coumadin or Jantoven) * Known history of glucose-6-phosphate-dehydrogenase deficiency * History of myasthenia gravis

Design outcomes

Primary

MeasureTime frameDescription
Number of Persons With Lower Respiratory Tract Infection (LRTI), Defined as Resting Blood Oxygen Saturation (SpO2<93%) Level Sustained for 2 Readings 2 Hours Apart and Presence of Subjective Dyspnea or Cough28 days from enrolmentResting blood oxygen saturation (SpO2\<93%) level sustained for 2 readings 2 hours apart and presence of subjective dyspnea or cough
Number of Participants With Hospitalization or MortalityDay 28 after enrolmentNumber of participants with hospitalization or mortality
Time to Clearance of Nasal SARS-CoV-2Day 1 through Day 14 after enrolmentTime to clearance of nasal SARS-CoV-2, defined as 2 consecutive negative swabs
Time to Resolution of COVID-19 Symptom Resolution in DaysDay 1 through Day 14 after enrolmentCOVID-19 symptoms are based on the following criteria: * At least TWO of the following symptoms: Fever (≥ 38ºC), chills, rigors, myalgia, headache, sore throat, new olfactory and taste disorder(s), OR * At least ONE of the following symptoms: cough, shortness of breath or difficulty breathing, OR * Severe respiratory illness with at least 1 of the following: * Clinical or radiological evidence of pneumonia, OR * Acute respiratory distress syndrome (ARDS), OR * LRTI, defined by resting SpO2\<93% sustained for 2 readings 2 hours apart AND presence of subjective dyspnea or cough Death or COVID-19-related hospitalizations will count as a failure to resolve symptoms.

Secondary

MeasureTime frameDescription
Number of Participants With Serious Adverse Events and Adverse Events Resulting in Treatment Discontinuation28 days from enrolmentSerious adverse events (including death and hospitalization) and adverse events resulting in treatment discontinuation
COVID-19-related Hospitalization Days28 days from enrolmentDuration of hospitalization among persons who become hospitalized with COVID-19 disease

Countries

United States

Participant flow

Pre-assignment details

This was a remotely conducted study. Participants who completed the informed consent process but did not complete the enrollment process after receiving the study materials are started but are not considered to have completed enrollment. This explains the discrepancy between Started and Completed Enrollment

Participants by arm

ArmCount
Ascorbic Acid and Folic Acid
Ascorbic acid 500 mg orally twice on Day 1, followed by 250 mg orally twice daily for 9 days + folic acid 800 µg orally once on Day 1, followed by 400 µg orally once daily for an additional 4 days (Days 2 to 5) Ascorbic Acid: Eligible participants in a household randomized to this study arm will receive ascorbic acid only or ascorbic acid and additional drug therapy Folic Acid: Eligible participants in a household will receive folic acid and an additional intervention drug
83
Hydroxychloroquine and Folic Acid
HCQ 400 mg orally twice on Day 1, followed by 200 mg orally twice daily for an additional 9 days (Days 2 to 10) + placebo (folic acid 800 µg orally once on Day 1, followed by 400 µg orally once daily for an additional 4 days \[Days 2 to 5\]) Hydroxychloroquine Sulfate: Eligible participants in a household randomized to this study arm will receive hydrochloroquine and folic acid therapy Folic Acid: Eligible participants in a household will receive folic acid and an additional intervention drug
71
Hydroxychloroquine and Azithromycin
HCQ 400 mg orally twice on Day 1, followed by 200 mg orally twice daily for an additional 9 days (Days 2 to 10) + azithromycin 500 mg orally once on Day 1, followed by 250 mg orally once daily for an additional 4 days (Days 2 to 5). Hydroxychloroquine Sulfate: Eligible participants in a household randomized to this study arm will receive hydrochloroquine and folic acid therapy Azithromycin: Eligible participants in a household randomized to this study arm will receive hydrochloroquine and azithromycin therapy
77
Lopinavir-ritonavir
LPV/r 800 mg-200 mg orally twice on Day 1, followed by 400 mg 100 mg orally twice daily for an additional 9 days (Days 2 to 10) Lopinavir 200 MG / Ritonavir 50 MG \[Kaletra\]: Eligible participants in a household randomized to this study arm will receive lopinavir-ritonavir therapy
29
Ascorbic Acid
Ascorbic acid 1 gm orally twice on Day 1, followed by 500 mg orally twice daily for 9 days Ascorbic Acid: Eligible participants in a household randomized to this study arm will receive ascorbic acid only or ascorbic acid and additional drug therapy
29
Total289

Baseline characteristics

CharacteristicHydroxychloroquine and Folic AcidHydroxychloroquine and AzithromycinLopinavir-ritonavirAscorbic AcidTotalAscorbic Acid and Folic Acid
Age, Customized
18-29 years
19 Participants24 Participants7 Participants8 Participants79 Participants21 Participants
Age, Customized
30-39 years
28 Participants21 Participants9 Participants9 Participants93 Participants26 Participants
Age, Customized
40-49 years
13 Participants14 Participants7 Participants6 Participants56 Participants16 Participants
Age, Customized
50-59 years
5 Participants9 Participants6 Participants3 Participants35 Participants12 Participants
Age, Customized
60-69 years
5 Participants8 Participants0 Participants2 Participants22 Participants7 Participants
Age, Customized
70-80 years
1 Participants1 Participants0 Participants1 Participants4 Participants1 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
23 Participants18 Participants7 Participants4 Participants82 Participants30 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
48 Participants59 Participants22 Participants25 Participants206 Participants52 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants
High Risk37 Participants44 Participants8 Participants10 Participants147 Participants48 Participants
Race (NIH/OMB)
American Indian or Alaska Native
11 Participants16 Participants0 Participants0 Participants39 Participants12 Participants
Race (NIH/OMB)
Asian
3 Participants4 Participants0 Participants0 Participants11 Participants4 Participants
Race (NIH/OMB)
Black or African American
10 Participants9 Participants5 Participants4 Participants35 Participants7 Participants
Race (NIH/OMB)
More than one race
10 Participants7 Participants6 Participants0 Participants38 Participants15 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants0 Participants0 Participants3 Participants2 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants0 Participants1 Participants4 Participants2 Participants
Race (NIH/OMB)
White
37 Participants39 Participants18 Participants24 Participants159 Participants41 Participants
Sex/Gender, Customized
Female
39 Participants47 Participants17 Participants20 Participants168 Participants45 Participants
Sex/Gender, Customized
Male
32 Participants30 Participants12 Participants9 Participants121 Participants38 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 830 / 710 / 770 / 290 / 29
other
Total, other adverse events
2 / 834 / 715 / 779 / 290 / 29
serious
Total, serious adverse events
4 / 832 / 713 / 770 / 291 / 29

Outcome results

Primary

Number of Participants With Hospitalization or Mortality

Number of participants with hospitalization or mortality

Time frame: Day 28 after enrolment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ascorbic Acid and Folic AcidNumber of Participants With Hospitalization or Mortality4 Participants
Hydroxychloroquine and Folic AcidNumber of Participants With Hospitalization or Mortality2 Participants
Hydroxychloroquine and AzithromycinNumber of Participants With Hospitalization or Mortality3 Participants
Lopinavir-ritonavirNumber of Participants With Hospitalization or Mortality0 Participants
Ascorbic AcidNumber of Participants With Hospitalization or Mortality1 Participants
Primary

Number of Persons With Lower Respiratory Tract Infection (LRTI), Defined as Resting Blood Oxygen Saturation (SpO2<93%) Level Sustained for 2 Readings 2 Hours Apart and Presence of Subjective Dyspnea or Cough

Resting blood oxygen saturation (SpO2\<93%) level sustained for 2 readings 2 hours apart and presence of subjective dyspnea or cough

Time frame: 28 days from enrolment

Population: This outcome was analyzed in the first arm of the platform trial (Ascorbic Acid/Folic Acid HCQ, HCQ/AZ) among the high risk cohort only. The mITT cohort included only those without LRTI at baseline.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ascorbic Acid and Folic AcidNumber of Persons With Lower Respiratory Tract Infection (LRTI), Defined as Resting Blood Oxygen Saturation (SpO2<93%) Level Sustained for 2 Readings 2 Hours Apart and Presence of Subjective Dyspnea or Cough2 Participants
Hydroxychloroquine and Folic AcidNumber of Persons With Lower Respiratory Tract Infection (LRTI), Defined as Resting Blood Oxygen Saturation (SpO2<93%) Level Sustained for 2 Readings 2 Hours Apart and Presence of Subjective Dyspnea or Cough0 Participants
Hydroxychloroquine and AzithromycinNumber of Persons With Lower Respiratory Tract Infection (LRTI), Defined as Resting Blood Oxygen Saturation (SpO2<93%) Level Sustained for 2 Readings 2 Hours Apart and Presence of Subjective Dyspnea or Cough4 Participants
Lopinavir-ritonavirNumber of Persons With Lower Respiratory Tract Infection (LRTI), Defined as Resting Blood Oxygen Saturation (SpO2<93%) Level Sustained for 2 Readings 2 Hours Apart and Presence of Subjective Dyspnea or Cough2 Participants
Ascorbic AcidNumber of Persons With Lower Respiratory Tract Infection (LRTI), Defined as Resting Blood Oxygen Saturation (SpO2<93%) Level Sustained for 2 Readings 2 Hours Apart and Presence of Subjective Dyspnea or Cough1 Participants
Primary

Time to Clearance of Nasal SARS-CoV-2

Time to clearance of nasal SARS-CoV-2, defined as 2 consecutive negative swabs

Time frame: Day 1 through Day 14 after enrolment

Population: Included the mITT viral shedding cohort, which includes the mITT cohort participants who do not meet the definition for clearance of viral shedding at baseline (day 1 and 2 swabs negative).

ArmMeasureValue (MEDIAN)
Ascorbic Acid and Folic AcidTime to Clearance of Nasal SARS-CoV-27 Days
Hydroxychloroquine and Folic AcidTime to Clearance of Nasal SARS-CoV-25 Days
Hydroxychloroquine and AzithromycinTime to Clearance of Nasal SARS-CoV-26 Days
Lopinavir-ritonavirTime to Clearance of Nasal SARS-CoV-24 Days
Ascorbic AcidTime to Clearance of Nasal SARS-CoV-25 Days
Primary

Time to Resolution of COVID-19 Symptom Resolution in Days

COVID-19 symptoms are based on the following criteria: * At least TWO of the following symptoms: Fever (≥ 38ºC), chills, rigors, myalgia, headache, sore throat, new olfactory and taste disorder(s), OR * At least ONE of the following symptoms: cough, shortness of breath or difficulty breathing, OR * Severe respiratory illness with at least 1 of the following: * Clinical or radiological evidence of pneumonia, OR * Acute respiratory distress syndrome (ARDS), OR * LRTI, defined by resting SpO2\<93% sustained for 2 readings 2 hours apart AND presence of subjective dyspnea or cough Death or COVID-19-related hospitalizations will count as a failure to resolve symptoms.

Time frame: Day 1 through Day 14 after enrolment

Population: mITT Disease Resolution cohort includes participants who meet the COVID-19 disease criteria on day 1. The symptom resolution rate was the primary outcome of the lopinavir-ritonavir adaptive platform arms (lopinavir-ritonavir and ascorbic acid).

ArmMeasureValue (MEDIAN)
Ascorbic Acid and Folic AcidTime to Resolution of COVID-19 Symptom Resolution in Days11.5 Days
Hydroxychloroquine and Folic AcidTime to Resolution of COVID-19 Symptom Resolution in Days10.5 Days
Hydroxychloroquine and AzithromycinTime to Resolution of COVID-19 Symptom Resolution in DaysNA Days
Lopinavir-ritonavirTime to Resolution of COVID-19 Symptom Resolution in DaysNA Days
Ascorbic AcidTime to Resolution of COVID-19 Symptom Resolution in DaysNA Days
Secondary

COVID-19-related Hospitalization Days

Duration of hospitalization among persons who become hospitalized with COVID-19 disease

Time frame: 28 days from enrolment

ArmMeasureValue (NUMBER)
Ascorbic Acid and Folic AcidCOVID-19-related Hospitalization DaysNA Days
Hydroxychloroquine and Folic AcidCOVID-19-related Hospitalization DaysNA Days
Hydroxychloroquine and AzithromycinCOVID-19-related Hospitalization DaysNA Days
Lopinavir-ritonavirCOVID-19-related Hospitalization DaysNA Days
Ascorbic AcidCOVID-19-related Hospitalization DaysNA Days
Secondary

Number of Participants With Serious Adverse Events and Adverse Events Resulting in Treatment Discontinuation

Serious adverse events (including death and hospitalization) and adverse events resulting in treatment discontinuation

Time frame: 28 days from enrolment

Population: All enrolled participants

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ascorbic Acid and Folic AcidNumber of Participants With Serious Adverse Events and Adverse Events Resulting in Treatment Discontinuation6 Participants
Hydroxychloroquine and Folic AcidNumber of Participants With Serious Adverse Events and Adverse Events Resulting in Treatment Discontinuation6 Participants
Hydroxychloroquine and AzithromycinNumber of Participants With Serious Adverse Events and Adverse Events Resulting in Treatment Discontinuation8 Participants
Lopinavir-ritonavirNumber of Participants With Serious Adverse Events and Adverse Events Resulting in Treatment Discontinuation9 Participants
Ascorbic AcidNumber of Participants With Serious Adverse Events and Adverse Events Resulting in Treatment Discontinuation1 Participants

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026