Crick
HomeTrialsGenesDrugs23andMeGraphBlogContact
  • Home
  • Trials
  • Genes
  • Drugs
  • 23andMe
  • Graph
  • Blog
  • Contact
Crick

An open-source clinical intelligence platform. Explore clinical trials, gene networks, and molecular structures using public data sources.

Data Sources

  • ClinicalTrials.gov
  • OpenTargets
  • ClinVar
  • PubChem

Links

  • Contact
  • Privacy

© 2026 Crick. All rights reserved.

Crick is for educational purposes only. Not medical advice.

Results for “COVID-19, Hydroxychloroquine Sulfate”

179 trials

Filters

Phase
Early Phase 1
Phase 1
Phase 2
Phase 3
Phase 4
Status
Recruiting
Active, Not Recruiting
Not Yet Recruiting
Completed
Enrolling by Invitation

Showing 20 of 179 results

Post-approval studies (Phase 4)UnknownNCT04355026
What this trial is testing

Use of Bromhexine and Hydroxychloroquine for Treatment of COVID-19 Pneumonia

Who this might be right for
Covid-19
General and Teaching Hospital Celje 90
Early research (Phase 1)Study completedNCT04461353
What this trial is testing

Evaluate the Safety, Tolerability and Pharmacokinetics of Orally Inhaled Aerosolized Hydroxychloroquine Sulfate in Healthy Adult Volunteers

Who this might be right for
Severe Acute Respiratory Syndrome Coronavirus 2
Pulmoquine Therapeutics, Inc 12
Testing effectiveness (Phase 2)Study completedNCT04335084
What this trial is testing

Hydroxychloroquine, Vitamin C, Vitamin D, and Zinc for the Prevention of COVID-19 Infection

Who this might be right for
COVID-19Coronavirus InfectionSars-CoV2+5 more
ProgenaBiome 254
Large-scale testing (Phase 3)Ended earlyNCT04342221
What this trial is testing

Hydroxychloroquine for COVID-19

Who this might be right for
COVID-19, Hydroxychloroquine Sulfate
University Hospital Tuebingen 30
Large-scale testing (Phase 3)Ended earlyNCT04347980
What this trial is testing

Dexamethasone Treatment for Severe Acute Respiratory Distress Syndrome Induced by COVID-19

Who this might be right for
Respiratory Distress Syndrome, AdultCOVID-19
Centre Chirurgical Marie Lannelongue 5
Not applicableUnknownNCT04353245
What this trial is testing

Study of Biomarkers in the Long-term Impact of Coronavirus Infection in the Cardiorespiratory System

Who this might be right for
COVID19Corona Virus InfectionMyocardial Injury+1 more
University of Sao Paulo General Hospital 130
Early research (Phase 1)Study completedNCT04497519
What this trial is testing

Local Tolerability and Pharmacokinetic Evaluation of Cyclops Dry Powder Hydroxychloroquine Inhalation in Healthy Volunteers

Who this might be right for
Covid19
University Medical Center Groningen 12
Large-scale testing (Phase 3)Ended earlyNCT04341441
What this trial is testing

Will Hydroxychloroquine Impede or Prevent COVID-19

Who this might be right for
COVID-19CoronavirusCoronavirus Infections+1 more
Henry Ford Health System 624
Post-approval studies (Phase 4)UnknownNCT04350671
What this trial is testing

Interferon Beta 1a in Hospitalized COVID-19 Patients

Who this might be right for
COVID-19
Shahid Beheshti University of Medical Sciences 40
Not applicableStudy completedNCT04355702
What this trial is testing

Covid-19 in Lupus Patients

Who this might be right for
Systemic Lupus ErythematosusCovid-19
University Hospital, Montpellier 130
Large-scale testing (Phase 3)Ended earlyNCT04341727
What this trial is testing

Hydroxychloroquine,Hydroxychloroquine,Azithromycin in the Treatment of SARS CoV-2 Infection

Who this might be right for
Coronavirus Infection
Washington University School of Medicine 30
Large-scale testing (Phase 3)WithdrawnNCT04372082
What this trial is testing

Hydroxychloroquine or Diltiazem-Niclosamide for the Treatment of COVID-19

Who this might be right for
Sars-CoV2
University Hospital, Lille
Large-scale testing (Phase 3)WithdrawnNCT04349228
What this trial is testing

Assessment of the Efficacy and Safety of (HCQ) as a Prophylaxis for COVID19 for Health Professionals

Who this might be right for
COVID19Sars-CoV2Hydroxychloroquine+2 more
Abderrahmane Mami Hospital
Large-scale testing (Phase 3)WithdrawnNCT04365231
What this trial is testing

Hydroxychloroquine Azithromycin COVID-19 Pregnancy Trial

Who this might be right for
COVID19
Hospital St. Joseph, Marseille, France
Testing effectiveness (Phase 2)Ended earlyNCT04381988
What this trial is testing

Hydroxychloroquine vs Placebo to Prevent COVID-19 Infection in Patients Receiving Radiotherapy

Who this might be right for
COVID-19Cancer
Memorial Sloan Kettering Cancer Center 4
Large-scale testing (Phase 3)UnknownNCT04352933
What this trial is testing

PROLIFIC ChemoprophylaxisTrial (COVID-19)

Who this might be right for
COVID-19
Cambridge University Hospitals NHS Foundation Trust 1,000
Post-approval studies (Phase 4)UnknownNCT04350684
What this trial is testing

Umifenovir in Hospitalized COVID-19 Patients

Who this might be right for
COVID-19
Shahid Beheshti University of Medical Sciences 40
Not applicableStudy completedNCT04349592
What this trial is testing

Hydroxychloroquine With or Without Azithromycin for Virologic Cure of COVID-19

Who this might be right for
Covid19
Hamad Medical Corporation 456
Not applicableWithdrawnNCT04466280
What this trial is testing

Efficacy and Safety of Mucoadhesive Sustained Release, Mucodentol, in Comparison With Hydroxychloroquine to Prevent COVID-19

Who this might be right for
COVID-19
Baqiyatallah Medical Sciences University
Early research (Phase 1)Study completedNCT04351620
What this trial is testing

High-dose Hydroxychloroquine for the Treatment of Ambulatory Patients With Mild COVID-19

Who this might be right for
COVID-19
University of Chicago 12
Next Page