Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Chloroquine (CQ) and Azithromycin (AZ) Combination for Malaria Prophylaxis

ClinicalTrials.gov ID: NCT03278808

Public ClinicalTrials.gov record NCT03278808. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 5, 2026, 1:16 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 2a Open Label Study of the Safety and Efficacy of a Single Dose of Weekly Chloroquine (CQ) and Azithromycin (AZ) Administered in Combination for Malaria Prophylaxis in Healthy Adults Challenged With 7G8 Chloroquine-Resistant Plasmodium Falciparum in a Controlled Human Malaria Infection (CHMI) Model

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is an open label, Phase 2 study with controlled human malaria infection (CHMI). Twenty three subjects will be enrolled into 2 groups (15 subjects in the Chloroquine-Azithromycin \[CQ/AZ\] Intervention Group, and 8 subjects in the Chloroquine \[CQ\] Group). The CQ/AZ Group will receive experimental intervention of 300 mg of CQ and 2 g of azithromycin (AZ). The CQ Group will receive 300 mg of CQ only. All subjects will participate in the CHMI and will be required to stay at a hotel for evaluation for a maximum of 14 nights starting 7 days after the challenge. A standard dose of atovaquone-proguanil (Malarone®) will be administered to all symptomatic parasitemic subjects under directly observed treatment.

Study identification

NCT ID
NCT03278808
Recruitment status
Withdrawn
Study type
Interventional
Phase
Phase 2
Enrollment
Not listed

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 50 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 16, 2018
Primary completion
Dec 29, 2019
Completion
Dec 31, 2019
Last update posted
Feb 26, 2020

2018 – 2020

United States locations

U.S. sites
2
U.S. states
1
U.S. cities
2
Facility City State ZIP Site status
Clinical Research Unit, Uniformed Services University of Health Sciences Bethesda Maryland 20814
WRAIR Silver Spring Maryland 20910

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03278808, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 26, 2020 · Synced Sep 5, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03278808 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →