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Showing 1–24 of 31 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Sporozoite challenge Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

PfSPZ Challenge in Non-immune Adults in Baltimore, USA

NCT02780154
View directory record Official record
Conditions
Plasmodium Falciparum Infection
Interventions
PfSPZ (7G8) Challenge, PfSPZ (NF54) Challenge
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 27, 2019 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional

Experimental PfSPZ Vaccine in Adults Without Malaria

NCT01441167
View directory record Official record
Conditions
Malaria, Prevention and Control, Acquired Immunity
Interventions
PfSPZ
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Safety and Efficacy Study of RTS,S AS02A/AS01B Vaccine to Prevent Malaria

NCT00075049
View directory record Official record
Conditions
Malaria
Interventions
RTS,S with AS02A/AS01B adjuvant
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 45 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 20, 2014 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability and Efficacy of PfSPZ Vaccine Against Heterologous CHMI in US Malaria naïve Adults

NCT04966871
View directory record Official record
Conditions
Malaria
Interventions
PfSPZ Vaccine, PfSPZ Challenge (7G8) for CHMI, Normal Saline
Biological · Other
Lead sponsor
Sanaria Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 17, 2022 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Evaluate the Infectivity Equivalence of Current and New Lots of Plasmodium Falciparum Strain NF54

NCT03882528
View directory record Official record
Conditions
Malaria,Falciparum
Interventions
Plasmodium falciparum malaria parasite
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 29, 2021 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Reproducibility of Malaria Challenge in Healthy Volunteers

NCT01058226
View directory record Official record
Conditions
Healthy
Interventions
Malaria challenge (wild-type NF54 strain Plasmodium falciparum sporozoites)
Biological
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 30, 2011 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy, Safety and Immunogenicity Study of GlaxoSmithKline(GSK) Biologicals' Candidate Malaria Vaccine 257049 in the Sporozoite Challenge Model in Healthy Malaria-naïve Adults

NCT01857869
View directory record Official record
Conditions
Malaria
Interventions
GSK257049 Dosage 1, GSK257049 Dosage 2, Sporozoite-infected mosquitoes challenge
Biological · Procedure
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 50 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 25, 2019 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Trial to Evaluate CIS43LS in Healthy Adults

NCT04206332
View directory record Official record
Conditions
Malaria
Interventions
VRC-MALMAB0100-00-AB, Plasmodium falciparum (P. falciparum) sporozoite challenge
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
2
States / cities
Baltimore, Maryland • Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 17, 2023 · Synced Sep 16, 2026, 1:56 AM EDT
Terminated Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

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

NCT01024686
View directory record Official record
Conditions
Malaria
Interventions
p52-/p36- GAP Vaccine
Biological
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 27, 2019 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Sanaria™ PfSPZ Challenge Vaccine

NCT01546389
View directory record Official record
Conditions
Malaria
Interventions
Sanaria™ PfSPZ Vaccine, Chloroquine
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 12, 2013 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Efficacy, Immunogenicity and Safety in a Sporozoite Challenge Model of a Fractional Booster Dose of GSK Biologicals' Candidate Malaria Vaccine Administered to Previously Vaccinated Healthy Malaria-naïve Adults

NCT03824236
View directory record Official record
Conditions
Malaria
Interventions
RTS,S/AS01E (SB257049)
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 55 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 13, 2020 · Synced Sep 16, 2026, 1:56 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

A Phase 1 Trial of PfSPZ Vaccine in Healthy Adults to Determine Safety, Tolerability and Efficacy Against Heterologous CHMI

NCT05604521
View directory record Official record
Conditions
Malaria, Malaria,Falciparum
Interventions
PfSPZ Vaccine, PfSPZ Challenge (7G8), Normal Saline
Biological · Other
Lead sponsor
Sanaria Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 24, 2024 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Clinical Trial for the Development of a Safe Malaria Challenge Model That Can be Reproduced in Humans

NCT00935623
View directory record Official record
Conditions
Plasmodium Vivax Malaria
Interventions
Malaria Challenge
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 15, 2018 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Trial to Evaluate the Safety, Immunogenicity and Protective Efficacy of Three or Five Administrations of GAP3KO Sporozoites

NCT03168854
View directory record Official record
Conditions
Plasmodium Falciparum Infection
Interventions
Genetically-attenuated p52-/p36-/sap1- Plasmodium falciparum parasite (GAP3KO) strain, Malaria challenge
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 23, 2025 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Immunization Via Mosquito Bite With Radiation-attenuated Sporozoites

NCT01994525
View directory record Official record
Conditions
Malaria
Interventions
PfRAS, Placebo, Challenge
Biological · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 50 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 16, 2019 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Malaria Challenge in Healthy Volunteers

NCT01500980
View directory record Official record
Conditions
Malaria
Interventions
P. falciparum infection, Chloroquine, Primaquine
Biological · Drug
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 12, 2012 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Trial of a Falciparum Malaria Protein (FMP012), E. Coli-expressed PfCelTOS, in Healthy Malaria-Naive Adults

NCT01540474
View directory record Official record
Conditions
Malaria
Interventions
Group 1: 10 ug FMP012 with 2 ug GLA-SE, Group 2: 10 ug FMP012 with 5 ug GLA-SE, 50 ug FMP012 with 5 ug GLA-SE or 2 ug GLA-SE, Controlled group-Challenged Only: no vaccination
Biological · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Causal Prophylactic Efficacy of KAF156 in a Controlled Human Malaria Challenge Model

NCT04072302
View directory record Official record
Conditions
Malaria
Interventions
KAF156, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 40 Years · Male only
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 27, 2019 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

PfSPZ Vaccine: Dose Optimization With Heterologous Challenge in Healthy Malaria-Naïve Adults

NCT02601716
View directory record Official record
Conditions
Malaria
Interventions
PfSPZ Vaccine, CHMI (7G8), CHMI (NF135.C10)
Biological
Lead sponsor
Sanaria Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
2
States / cities
Baltimore, Maryland • Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 15, 2018 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Study of VMP001 and AS01B (Adjuvant Formulation) in Healthy Malaria-Naïve Adults

NCT01157897
View directory record Official record
Conditions
Malaria, Plasmodium Vivax
Interventions
VMP001, P. vivax sporozoite challenge
Biological · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 55 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated May 28, 2019 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy, Immunogenicity and Safety Study of GSK Biologicals' Candidate Malaria Vaccine Evaluating Different Dose Schedules in a Sporozoite Challenge Model in Healthy Malaria-naïve Adults

NCT03162614
View directory record Official record
Conditions
Malaria
Interventions
RTS,S/AS01E, RTS,S/AS01B, Sporozoite-infected mosquitoes challenge.
Biological · Procedure
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 55 Years
Enrollment
154 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 26, 2020 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Sanaria PfSPZ Challenge With Pyrimethamine Chemoprophylaxis (PfSPZ-CVac Approach): Phase 1 Trial to Determine Safety and Protective Efficacy of Sanaria PfSPZ Challenge With Concurrent Pyrimethamine Treatment That Inhibits Development of Asexual B...

NCT02511054
View directory record Official record
Conditions
Malaria
Interventions
Chloroquine (CQ), Pyrimethamine (PYR), Sanaria PfSPZ Challenge (NF54)
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Phase 1 Clinical Trial With Controlled Human Malaria Infection (CHMI) to Evaluate the Safety and Efficacy of the Plasmodium Falciparum Vaccine Candidate FMP012 Administered Intramuscularly With AS01B Adjuvant System in Healthy Malaria-Naïve Adults

NCT02174978
View directory record Official record
Conditions
Malaria
Interventions
FMP012 with AS01B adjuvant system, P falciparum Controlled Human Malaria Infection (CHMI)
Biological · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 50 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Sep 16, 2026, 1:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

First-in-Human PfSPZ-LARC2 Vaccination/CHMI

NCT06735209
View directory record Official record
Conditions
Malaria
Interventions
PfSPZ Vaccine, PfSPZ (7G8) Challenge, Sodium Chloride, 0.9%
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 16, 2026, 1:56 AM EDT