NCT07849907Recruiting
The Parasite and Infestation Study
Understanding the Experience of Patient-Physician Diagnostic Incongruency: I Know Something is Wrong But No One Believes Me
Source: ClinicalTrials.gov · Last updated 30 Sept 2026
Brief summary (registry, in English)
Many people have evidence of bugs, parasites, and infestation, but are told by others that they cannot find a cause. This distressing and frustrating experience can last for years, as the person seeks answers. The current study aims to understand the experience of these individuals. In a 1-2 hour session over Zoom, the investigators will ask participants questions about their experience, have them complete self-report questionnaires, and ask them to complete a few games on the computer. The investigators' goal is to help characterize and understand individuals with this experience to aid in better treatment and inform recommendations for providers.
- Status (registry)
- Recruiting
- Study type
- Observational
- Enrollment
- 25 (estimated)
- First submitted
- 18 Sept 2026
- Start date
- 31 Dec 2024
- Primary completion date
- 31 Dec 2029
- Lead sponsor
- Vanderbilt University Medical Center
- NCT number
- NCT07849907
What you commit to
- Study type: Observational
- Planned participants: 25
- From 31 Dec 2024 to the primary completion date, 31 Dec 2029
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Active substance use disorder (excluding nicotine and caffeine)
- History of severe head trauma
- Serious medical or neurological illness known to interfere with cognitive functioning
- Diagnosis of a learning disability or cognitive disorder
Other
- Current use of antipsychotics
Who the study is looking for
- Men and women aged 18-70 years old
- At least 50% certain that they have an active infection/infestation/parasite, despite being told by doctor that they do not
- Ability to read and speak English
- Access to a computer or phone for virtual visit
- No self-reported history of schizophrenia-spectrum disorder
Age in the registry: 18 years to 70 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Vanderbilt University Medical Center Coordinator of this site? Confirm its status | Nashville | United States | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.