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Showing 1–24 of 194 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: hydroxychloroquine Clear all
Terminated Phase 2 Interventional Results available

Hydroxychloroquine in Cardiovascular Disease in Patients With Chronic Kidney Disease: A Proof of Concept Study

NCT01537315
View directory record Official record
Conditions
Kidney Failure, Chronic, Cardiovascular Disease, Arteriosclerosis
Interventions
Hydroxychloroquine, Matching Placebo
Drug · Other
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 80 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
3
States / cities
Little Rock, Arkansas • Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 18, 2014 · Synced Sep 2, 2026, 4:37 AM EDT
Recruiting Phase 3 Interventional

Randomized, Embedded, Multifactorial Adaptive Platform Trial for Community- Acquired Pneumonia

NCT02735707
View directory record Official record
Conditions
Community-acquired Pneumonia, Influenza, COVID-19
Interventions
Ceftriaxone, Moxifloxacin or Levofloxacin, Piperacillin-tazobactam, Ceftaroline, Amoxicillin-clavulanate, Standard course macrolide, Extended course macrolide, No systemic corticosteroid, Fixed-duration Hydrocortisone, Shock-dependent hydrocortisone, Fixed-duration higher dose Hydrocortisone, No antiviral agent for influenza, Five-days oseltamivir, Ten-days oseltamivir, No antiviral agent for COVID-19, Lopinavir / Ritonavir, Hydroxychloroquine, Hydroxychloroquine + lopinavir/ritonavir, Ivermectin, No immune modulation for COVID-19, Interferon beta-1a, Anakinra, Tocilizumab, Sarilumab, Local standard venous thromboprophylaxis, Therapeutic dose anticoagulation, Conventional low dose thromboprophylaxis, Intermediate dose thromboprophylaxis, Continuation of therapeutic dose anticoagulation, No immunoglobulin, Convalescent plasma, Delayed administration of convalescent plasma, No vitamin C, Vitamin C, No antiplatelet, Aspirin, P2Y12 inhibitor, No simvastatin, Simvastatin, Eritoran, Apremilast, Clinician-preferred mechanical ventilation strategy, Protocolised mechanical ventilation strategy, No renin-angiotensin system inhibitor, Angiotensin converting enzyme inhibitor, Angiotensin Receptor Blockers, ARB + DMX-200, No cysteamine, Cysteamine, Fixed-duration dexamethasone, Baloxavir Marboxil, Five-days oseltamivir + baloxavir marboxil, Ten-days oseltamivir + baloxavir marboxil, No endothelial modulator, Imatinib, No Immune Modulator for Influenza, Baricitinib, Nirmatrelvir/ritonavir, Remdesivir, Nirmatrelvir/ritonavir + remdesivir
Drug · Other · Biological + 1 more
Lead sponsor
UMC Utrecht
Other
Eligibility
18 Years and older
Enrollment
20,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2028
U.S. locations
11
States / cities
Jacksonville, Florida • Augusta, Georgia • Chicago, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2024 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Hydroxychloroquine as Chemoprevention for COVID-19 for High Risk Healthcare Workers

NCT04345653
View directory record Official record
Conditions
Covid19
Interventions
Hydroxychloroquine Sulfate (HCQ)
Drug
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years to 99 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Edison, New Jersey
Source: ClinicalTrials.gov public record
Updated May 11, 2021 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 1 Interventional

Sirolimus or Vorinostat and Hydroxychloroquine in Advanced Cancer

NCT01266057
View directory record Official record
Conditions
Advanced Cancers
Interventions
Hydroxychloroquine, Sirolimus, Vorinostat
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
143 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 3, 2021 · Synced Sep 2, 2026, 4:37 AM EDT
Terminated Phase 2 Interventional Results available

Testing Dabrafenib and Trametinib With or Without Hydroxychloroquine in Stage IIIC or IV BRAF V600E/K Melanoma

NCT04527549
View directory record Official record
Conditions
Clinical Stage IV Cutaneous Melanoma AJCC v8, Locally Advanced Melanoma, Pathologic Stage IIIC Cutaneous Melanoma AJCC v8, Pathologic Stage IV Cutaneous Melanoma AJCC v8, Unresectable Melanoma
Interventions
Dabrafenib mesylate, Hydroxychloroquine, Placebo Administration, Trametinib dimethyl sulfoxide
Drug
Lead sponsor
ECOG-ACRIN Cancer Research Group
Network
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
199
States / cities
Anchorage, Alaska • Phoenix, Arizona • Scottsdale, Arizona + 139 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 2 Interventional Results available

University of Utah COVID-19 Hydrochloroquine Trial

NCT04342169
View directory record Official record
Conditions
Coronavirus Infection, Coronavirus, Infectious Disease
Interventions
Hydroxychloroquine, Placebo oral tablet
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
368 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 14, 2023 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 2 Interventional Results available

Preventive Approach to Congenital Heart Block With Hydroxychloroquine

NCT01379573
View directory record Official record
Conditions
Congenital Heart Block, Neonatal Lupus, Autoantibody-Associated Heart Block
Interventions
Hydroxychloroquine
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 24, 2021 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 2 Interventional Results available

COVID-19 PrEP HCW HCQ Study

NCT04354870
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine (HCQ)
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 13, 2022 · Synced Sep 2, 2026, 4:37 AM EDT
Terminated Phase 2 Interventional Results available

Hydroxychloroquine in Individuals At-risk for Type 1 Diabetes Mellitus

NCT03428945
View directory record Official record
Conditions
Type1 Diabetes Mellitus
Interventions
Hydroxychloroquine, Placebo
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
3 Years and older
Enrollment
273 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
37
States / cities
Los Angeles, California • San Francisco, California • Stanford, California + 33 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2024 · Synced Sep 2, 2026, 4:37 AM EDT
Terminated Phase 2 Interventional Results available

Non-comparative Trial of the Combination of HCQ and AZI in the Treatment of ICU Patients

NCT04458948
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine, Azithromycin
Drug
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Sep 12, 2023 · Synced Sep 2, 2026, 4:37 AM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

HEalth Care Worker pROphylaxis Against COVID-19: The HERO Trial

NCT04352946
View directory record Official record
Conditions
Prophylaxis, COVID-19, Health Care Worker, Hydroxychloroquine
Interventions
Hydroxychloroquine Pre-Exposure Prophylaxis, Placebo oral tablet
Drug
Lead sponsor
GeoSentinel Foundation
Other
Eligibility
18 Years and older
Enrollment
374 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 21, 2020 · Synced Sep 2, 2026, 4:37 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

PATCH 2&3:Prevention & Treatment of COVID-19 (Severe Acute Respiratory Syndrome Coronavirus 2) With Hydroxychloroquine

NCT04353037
View directory record Official record
Conditions
Coronavirus, Corona Virus Infection
Interventions
Group 1 HCQ, Group 2 Placebo
Drug
Lead sponsor
UnitedHealth Group
Industry
Eligibility
18 Years to 75 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 18, 2021 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 2 Interventional Results available

Management of Cardiovascular Disease in Kidney Disease (MaCK) Study

NCT03636152
View directory record Official record
Conditions
Chronic Kidney Disease, Cardiovascular Disease, Inflammation, Atherosclerosis, Aortic Stiffness
Interventions
MRI carotid, APWV, Hydroxychloroquine, Matching Placebo
Procedure · Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 1 Interventional Results available

To Determine the Safety of Regorafenib, Hydroxychloroquine, and Entinostat Metastatic Colorectal Cancer

NCT03215264
View directory record Official record
Conditions
Colorectal Cancer
Interventions
hydroxychloroquine, entinostat, regorafenib
Drug
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced Sep 2, 2026, 4:37 AM EDT
Terminated Phase 2 Interventional Results available

Combination of Trametinib (MEK Inhibitor) and Hydroxychloroquine (HCQ) (Autophagy Inhibitor) in Patients With KRAS Mutation Refractory Bile Tract Carcinoma (BTC).

NCT04566133
View directory record Official record
Conditions
Bile Duct Cancer, Biliary Cancer, Biliary Tract Neoplasms, Cholangiocarcinoma
Interventions
Trametinib, Hydroxychloroquine
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 4 Interventional

Hydroxychloroquine and Zinc With Either Azithromycin or Doxycycline for Treatment of COVID-19 in Outpatient Setting

NCT04370782
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine, Azithromycin, Zinc Sulfate, Doxycycline
Drug
Lead sponsor
St. Francis Hospital, New York
Other
Eligibility
30 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Roslyn, New York
Source: ClinicalTrials.gov public record
Updated Dec 8, 2020 · Synced Sep 2, 2026, 4:37 AM EDT
Terminated Phase 1 Interventional

Hydroxychloroquine in Outpatient Adults With COVID-19

NCT04333654
View directory record Official record
Conditions
Coronavirus Infection
Interventions
Hydroxychloroquine SAR321068, Placebo
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 80 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

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

NCT04335084
View directory record Official record
Conditions
COVID-19, Coronavirus Infection, Sars-CoV2, Corona Virus Infection, COVID, Coronavirus, Coronavirus-19, Coronavirus 19
Interventions
Hydroxychloroquine, Vitamin C, Vitamin D, Zinc
Drug · Dietary Supplement
Lead sponsor
ProgenaBiome
Other
Eligibility
18 Years and older
Enrollment
254 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Binimetinib and Hydroxychloroquine in Patients With Advanced KRAS Mutant Non-Small Cell Lung Cancer

NCT04735068
View directory record Official record
Conditions
Non-Small Cell Lung Cancer, KRAS Mutation-Related Tumors
Interventions
Binimetinib Pill, Hydroxychloroquine Pill
Drug
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 31, 2025 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 1 Interventional

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

NCT04351620
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 22, 2023 · Synced Sep 2, 2026, 4:37 AM EDT
Completed Phase 3 Interventional Results available

Post-exposure Prophylaxis / Preemptive Therapy for SARS-Coronavirus-2

NCT04308668
View directory record Official record
Conditions
Corona Virus Infection, Acute Respiratory Distress Syndrome, SARS-CoV Infection, Coronavirus, Coronavirus Infections
Interventions
Hydroxychloroquine, Placebo
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
1,312 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
2
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 12, 2021 · Synced Sep 2, 2026, 4:37 AM EDT
Terminated Phase 1 Interventional

Trametinib and Hydroxychloroquine in Treating Patients With Pancreatic Cancer

NCT03825289
View directory record Official record
Conditions
Metastatic Pancreatic Carcinoma, Stage II Pancreatic Cancer, Stage IIA Pancreatic Cancer, Stage IIB Pancreatic Cancer, Stage III Pancreatic Cancer, Stage IV Pancreatic Cancer, Unresectable Pancreatic Carcinoma
Interventions
Hydroxychloroquine, Trametinib
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
2
States / cities
San Francisco, California • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 2, 2026, 4:37 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Analysis of T and B Cell Repertoire Changes in Response to Orencia® (Abatacept) in Rheumatoid Arthritis

NCT05782335
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
Not listed
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Sep 2, 2026, 4:37 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

A Study of Nivolumab and Hydroxychloroquine or Nivolumab/Ipilimumab and Hydroxychloroquine in Advanced Melanoma

NCT04464759
View directory record Official record
Conditions
Melanoma
Interventions
Nivolumab, Hydroxychloroquine, Ipilimumab
Drug
Lead sponsor
Ravi Amaravadi, MD
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Sep 2, 2026, 4:37 AM EDT