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Terminated Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Phase 1/2a Trial of Pf GAP p52-/p36- Sporozoite Malaria Vaccine

ClinicalTrials.gov ID: NCT01024686

Public ClinicalTrials.gov record NCT01024686. 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 Oct 22, 2026, 3:39 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

Phase 1/2a Trial to Assess the Safety, Immunogenicity and Efficacy of Genetically-attenuated Plasmodium Falciparum Parasites p52-/p36- (GAP) Vaccine, Administered by Bite of Infected Anopheles Mosquito to Malaria-naïve Adults Living in the United States.

Brief summary

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

The purpose of this study is to assess safety and tolerability of escalating doses of a genetically attenuated parasite malaria vaccine (p52-/p36- GAP vaccine) in healthy malaria-naive adults. The study will also assess preliminary efficacy of p52-/p36- GAP vaccine following primary experimental challenge with P. falciparum sporozoites. Lastly, the study will assess immunogenicity of p52-/p36- GAP in malaria-naïve healthy adults and preliminary efficacy of p52-/p36- GAP vaccine following primary experimental re-challenge with P. falciparum sporozoites.

Study identification

NCT ID
NCT01024686
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 1, Phase 2
Enrollment
6 participants

Conditions and interventions

Conditions

Interventions

Biological

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
Mar 2010 (Type not available)
Primary completion
Jun 2011 (Actual)
Completion
Jun 2011 (Actual)
Last update posted
Oct 28, 2019

2010 – 2011

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Walter Reed Army Institute of Research 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 NCT01024686, 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 Oct 28, 2019 · Synced Oct 22, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01024686 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →