Efficacy of Na-GST-1/Alhydrogel Hookworm Vaccine Assessed by Controlled Challenge Infection
Public ClinicalTrials.gov record NCT03172975. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Phase 2 Study to Assess the Safety, Efficacy and Immunogenicity of Na-GST-1/Alhydrogel Co-administered With Different Toll-Like Receptor Agonists in Hookworm- Naïve Adults
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study evaluates the efficacy, safety and immunogenicity of different formulations of the Na-GST-1 hookworm vaccine using a controlled human hookworm infection model in healthy, hookworm-naive adults.
Study identification
- NCT ID
- NCT03172975
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 39 participants
Conditions and interventions
Conditions
Interventions
- Na-GST-1/Alhydrogel Biological
- Na-GST-1/Alhydrogel + CPG 10104 Biological
- Na-GST-1/Alhydrogel + GLA-AF Biological
- Placebo Biological
- Albendazole Drug
- Necator americanus Larval Inoculum Other
Biological · Drug · Other
Eligibility (public fields only)
- Age range
- 18 Years to 45 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
- Feb 28, 2018
- Primary completion
- Dec 30, 2024
- Completion
- Jan 29, 2025
- Last update posted
- Mar 11, 2026
2018 – 2025
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| George Washington University | Washington D.C. | District of Columbia | 20037 | — |
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 NCT03172975, 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 Mar 11, 2026 · Synced Sep 2, 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 NCT03172975 live on ClinicalTrials.gov.