- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03702530
Immunisation, Treatment and Controlled Human Hookworm Infection (ITCHHI)
Study Overview
Status
Conditions
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
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Leiden, Netherlands, 2333 ZA
- Leiden University Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
In order to be eligible to participate in this study, a subject must meet all of the following criteria:
- Subject is aged ≥ 18 and ≤ 45 years and in good health.
- Subject has adequate understanding of the procedures of the study and agrees to abide strictly thereby.
- Subject is able to communicate well with the investigator and is available to attend all study visits.
- Subject agrees to refrain from blood donation to Sanquin or for other purposes throughout the study period.
- For female subjects: subject agrees to use adequate contraception and not to breastfeed for the duration of study.
- Subject agrees to refrain from travel to a hookworm endemic area during the course of the trial.
- Subject has signed informed consent.
Exclusion Criteria:
Any history, or evidence at screening, of clinically significant symptoms, physical signs or abnormal laboratory values suggestive of systemic conditions, such as cardiovascular, pulmonary, renal, hepatic, neurological, dermatological, endocrine, malignant, haematological, infectious, immune-deficient, psychiatric and other disorders, which could compromise the health of the volunteer during the study or interfere with the interpretation of the study results. These include, but are not limited to, any of the following:
- positive HIV, HBV or HCV screening tests;
- the use of immune modifying drugs within three months prior to study onset (inhaled and topical corticosteroids and oral anti-histamines exempted) or expected use of such during the study period;
- having one of the following laboratory abnormalities: ferritine <10 ug/L, transferrine <2.04 g/L or Hb <6.5 mmol/L for females or <7.5 mmol/L for males.
- history of malignancy of any organ system (other than localized basal cell carcinoma of the skin), treated or untreated, within the past 5 years;
- any history of treatment for severe psychiatric disease by a psychiatrist in the past year;
- history of drug or alcohol abuse interfering with normal social function in the period of one year prior to study onset;
- inflammmatory bowel syndrome;
- regular constipation, resulting in bowel movements less than three times per week.
- Known hypersensitivity to or contra-indications for use of albendazole, including co-medication known to interact with albendazole metabolism (e.g. carbamazepine, phenobarbital, phenytoin, cimetidine, theophylline, dexamethasone).
- Known allergy to amphotericin B or gentamicin.
- For female subjects: positive urine pregnancy test at screening.
- Positive faecal qPCR for hookworm at screening, any known history of hookworm infection or treatment for hookworm infection.
- Being an employee or student of the department of Parasitology of the LUMC.
- Current or past scars, tattoos, or other disruptions of skin integrity at the intended site of larval application.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: OTHER
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: TRIPLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Intervention
3x 50 L3 larvae immunisation with albendazole treatment and 2x 50 L3 larvae infection
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Immunisation with 50 Necator americanus L3 larvae at week 0, 3 and 6 with albendazole treatment at week 2, 5 and 8
After (mock) immunisation, infection with 50 Necator americanus larvae at week 13 and 15
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PLACEBO_COMPARATOR: Placebo
3x placebo immunisation with albendazole treatment and 2x 50 L3 larvae infection
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After (mock) immunisation, infection with 50 Necator americanus larvae at week 13 and 15
Mock immunisation with water at week 0, 3 and 6 with albendazole treatment at week 2, 5 and 8
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Difference between egg counts between intervention and placebo group
Time Frame: week 25-29
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Comparison of average egg counts from week 25-29 of the trial (which is week 12 to 16 after controlled human hookworm infection) by Kato-Katz between intervention group and placebo group
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week 25-29
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Frequency of adverse events
Time Frame: week 0-29
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Comparison of frequency of adverse events collected during immunisation phase and after controlled human hookworm infection between intervention and placebo group
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week 0-29
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Severity of adverse events
Time Frame: week 0-29
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Comparison of severity of adverse events collected during immunisation phase and after controlled human hookworm infection between intervention and placebo group
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week 0-29
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: M. Roestenberg, MD, PhD, Leiden University Medical Center
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Disease Attributes
- Parasitic Diseases
- Secernentea Infections
- Nematode Infections
- Helminthiasis
- Strongylida Infections
- Infections
- Communicable Diseases
- Hookworm Infections
- Ancylostomiasis
- Molecular Mechanisms of Pharmacological Action
- Anti-Infective Agents
- Antineoplastic Agents
- Tubulin Modulators
- Antimitotic Agents
- Mitosis Modulators
- Antiprotozoal Agents
- Antiparasitic Agents
- Anthelmintics
- Antiplatyhelmintic Agents
- Anticestodal Agents
- Albendazole
Other Study ID Numbers
- ITCHHI
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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