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Showing 1–24 of 33 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Helminthic Infection Clear all
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Multiple Ascending Dose Study of Oxfendazole in Healthy Adult Volunteers

NCT03035760
View directory record Official record
Conditions
Helminthic Infection
Interventions
Oxfendazole
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Sep 10, 2026, 4:38 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

HIV Accelerated Liver Disease in Uganda

NCT01524562
View directory record Official record
Conditions
Fibrosis
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
786 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 5, 2020 · Synced Sep 10, 2026, 4:38 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Natural History of Treated Neurocysticercosis and Long-Term Outcomes

NCT00001205
View directory record Official record
Conditions
Cysticercosis, Neurocysticercosis
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Years to 99 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1985
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 7, 2026 · Synced Sep 10, 2026, 4:38 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Controlled Human Infection Study of Orally Administered Trichuris Trichiura Eggs in Naïve Adults

NCT05706116
View directory record Official record
Conditions
Whipworm, Trichuriasis, Controlled Human Infection
Interventions
Trichuris trichiura Egg Inoculum
Biological
Lead sponsor
George Washington University
Other
Eligibility
18 Years to 45 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 10, 2026, 4:38 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Doxycycline to Treat Mansonella Perstans Infection in Patients With and Without Lymphatic Filariasis

NCT00340691
View directory record Official record
Conditions
Mansonella Perstans Infection, Mp Microfilaremia
Interventions
Doxycycline
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
14 Years to 65 Years
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 10, 2026, 4:38 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety, Tolerability, and Immunogenicity Study of Sm-p80 + GLA-SE (SchistoShield(R)) Vaccine in Healthy Adults

NCT05292391
View directory record Official record
Conditions
Schistosomiasis
Interventions
Sm-p80, Sm-p80 + GLA-SE
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 13, 2025 · Synced Sep 10, 2026, 4:38 PM EDT
Recruiting No phase listed Observational

Host Response to Infection and Treatment in Filarial Diseases

NCT00001230
View directory record Official record
Conditions
Filariasis, Helminthiasis, Parasitic Infection, Mansonelliasis, Onchocerciasis
Interventions
Diethylcarbamazine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Years to 100 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1991
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 10, 2026, 4:38 PM EDT
Completed No phase listed Observational

Brain Tissue Swelling and Seizure Activity in Inactive Cysticercosis

NCT00001912
View directory record Official record
Conditions
Cysticercosis, Cysts, Seizures
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 10, 2026, 4:38 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Disability and Quality of Life in Patients With Lymphatic Filariasis in Rural Southern India

NCT01629771
View directory record Official record
Conditions
Lymphatic Filariasis
Interventions
Not listed
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 19, 2014 · Synced Sep 10, 2026, 4:38 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of the Na-APR-1 Hookworm Vaccine in Healthy Adults

NCT01717950
View directory record Official record
Conditions
Hookworm Infection, Hookworm Disease
Interventions
Na-APR-1 (M74)/Alhydrogel®, Gluco-Pyranosylphospho-Lipid A Aqueous Formulation
Biological
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 50 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jul 30, 2019 · Synced Sep 10, 2026, 4:38 PM EDT
Terminated Phase 3 Interventional Results available

Treatment of Strongyloides Infection

NCT03605758
View directory record Official record
Conditions
Strongyloides Stercoralis Infection, Strongyloidiasis
Interventions
Ivermectin
Drug
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Nov 29, 2023 · Synced Sep 10, 2026, 4:38 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of Na-GST-1 With or Without CpG

NCT02143518
View directory record Official record
Conditions
Hookworm Infection, Hookworm Disease
Interventions
Na-GST-1/Alhydrogel®, CpG 10104
Biological
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 50 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jul 3, 2025 · Synced Sep 10, 2026, 4:38 PM EDT
Completed Phase 1 Interventional

PET Imaging of Peripheral Benzodiazepine Receptors in Patients With Neurocysticercosis Using [F-18]FB

NCT00527579
View directory record Official record
Conditions
Neurocysticercosis, Healthy
Interventions
[F-18]FBR
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Sep 10, 2026, 4:38 PM EDT
Terminated No phase listed Observational

People Presenting With Neurocysticercosis in North America

NCT02233855
View directory record Official record
Conditions
Neurocysticercosis
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
4
States / cities
San Francisco, California • Bethesda, Maryland • Dallas, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Sep 10, 2026, 4:38 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Comparison of Immune Response in Normal Volunteers and Patients With Helminth Infections

NCT00004996
View directory record Official record
Conditions
Healthy, Helminthiasis
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 11, 2019 · Synced Sep 10, 2026, 4:38 PM EDT
Recruiting No phase listed Observational

Activation and Function of Eosinophils in Conditions With Blood or Tissue Eosinophilia

NCT00001406
View directory record Official record
Conditions
Immune System Diseases, Eosinophilia, Helminthiasis, Hypersensitivity, Parasitic Disease
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Year to 100 Years
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1997
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 7, 2026 · Synced Sep 10, 2026, 4:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Development of a Skin Test for the Na-ASP-2 Hookworm Antigen

NCT00603889
View directory record Official record
Conditions
Hookworm Infection, Allergy
Interventions
Na-ASP-2 Skin Test Reagent
Biological
Lead sponsor
Albert B. Sabin Vaccine Institute
Other
Eligibility
18 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 22, 2012 · Synced Sep 10, 2026, 4:38 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Na-ASP-2 Human Hookworm Vaccine in Healthy Adults Without Evidence of Hookworm Infection

NCT00120081
View directory record Official record
Conditions
Hookworm Infection
Interventions
Na-ASP-2/Alhydrogel Hookworm Vaccine, Saline placebo
Biological
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Sep 10, 2026, 4:38 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy of Na-GST-1/Alhydrogel Hookworm Vaccine Assessed by Controlled Challenge Infection

NCT03172975
View directory record Official record
Conditions
Hookworm Infections
Interventions
Na-GST-1/Alhydrogel, Na-GST-1/Alhydrogel + CPG 10104, Na-GST-1/Alhydrogel + GLA-AF, Placebo, Albendazole, Necator americanus Larval Inoculum
Biological · Drug · Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 45 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Sep 10, 2026, 4:38 PM EDT
Completed Phase 2 Interventional Results available

Reslizumab to Prevent Post-treatment Eosinophilia in Loiasis

NCT01111305
View directory record Official record
Conditions
Loiasis
Interventions
Reslizumab, Diethylcarbamazine, Placebo
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 26, 2022 · Synced Sep 10, 2026, 4:38 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Repeat Ivermectin Mass Drug Administrations for Control of Malaria: a Pilot Safety and Efficacy Study

NCT02509481
View directory record Official record
Conditions
Malaria, Lymphatic Filariasis
Interventions
Ivermectin, Albendazole
Drug
Lead sponsor
Colorado State University
Other
Eligibility
Not listed
Enrollment
2,712 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 3, 2019 · Synced Sep 10, 2026, 4:38 PM EDT
Completed No phase listed Observational

Effect of Filarial Infection on Immune Responses in Latent Tuberculosis

NCT01547884
View directory record Official record
Conditions
Mycobacterium Infections, Tuberculosis, Filariasis, Latent Tuberculosis
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
4,268 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 19, 2021 · Synced Sep 10, 2026, 4:38 PM EDT
Completed No phase listed Observational

Tuberculosis - Learning the Effect of Parasites and Reinforcing Diets

NCT05048485
View directory record Official record
Conditions
Tuberculosis, Pulmonary, Helminthiasis, Malnutrition
Interventions
Not listed
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 3, 2025 · Synced Sep 10, 2026, 4:38 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

PET Imaging of Peripheral Benzodiazepine Receptors in Patients With Neurocysticercosis Using [C-11]PBR28

NCT00526916
View directory record Official record
Conditions
Neurocysticercosis, Healthy
Interventions
[C-11]PBR28
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 75 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 11, 2019 · Synced Sep 10, 2026, 4:38 PM EDT