- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT07849907
The Parasite and Infestation Study
Understanding the Experience of Patient-Physician Diagnostic Incongruency: I Know Something is Wrong But No One Believes Me
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.
Aperçu de l'étude
Statut
Intervention / Traitement
Description détaillée
The current study aims to characterize the experiences of people who have evidence of bugs, parasites, and/or infestation but are told by physicians or other professionals (e.g. vets, pest control) that there is nothing wrong. The investigators seek to understand the emotional and cognitive aspects of this experience, through semi-structured interviews, self-report questionnaires, and cognitive tasks. The study will take a few hours and is conducted remotely, allowing for participation regardless of the participant's physical location. There is practically no aggregate information on this experience, with most current information relying on case reports and medical record review. The investigators hope to provide greater insights into this experience to guide support for individuals going through this difficult process.
Type d'étude
Inscription (Estimé)
Contacts et emplacements
Coordonnées de l'étude
- Nom: Sheffield Lab
- Numéro de téléphone: (615) 686-2488
- E-mail: sheffieldlab.vumc@gmail.com
Lieux d'étude
-
-
Tennessee
-
Nashville, Tennessee, États-Unis, 37212
- Recrutement
- Vanderbilt University Medical Center
-
Contact:
- Sheffield Lab
- Numéro de téléphone: (615) 686-2488
- E-mail: sheffieldlab.vumc@gmail.com
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
Adults with a persistent experience of infestation or parasite that physicians or other professionals report no evidence for.
La description
Inclusion Criteria:
- 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
Exclusion Criteria:
- Active substance use disorder (excluding nicotine and caffeine)
- History of severe head trauma
- Current use of antipsychotics
- Serious medical or neurological illness known to interfere with cognitive functioning
- Diagnosis of a learning disability or cognitive disorder
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Modèles d'observation: COHORT
- Perspectives temporelles: CROSS_SECTIONAL
Cohortes et interventions
Groupe / Cohorte |
Intervention / Traitement |
|---|---|
|
PPDI Group
|
This study will not involve an intervention. |
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Psychological Wellbeing
Délai: Baseline
|
Total score on the Warwick-Edinburgh Mental Wellbeing Scale (WEMWBS); scores range from 14-70; higher scores reflect greater wellbeing |
Baseline
|
|
Social Network
Délai: Baseline
|
Ludden Social Network Scale - total score; higher scores reflect larger and closer social network (score: 0-30) |
Baseline
|
|
Depression
Délai: Baseline
|
Total score - Beck Depression Inventory -II; Scores range from 0-63 with higher scores reflecting worse depression |
Baseline
|
|
Anxiety
Délai: Baseline
|
Perseverative Thinking Questionnaire (PTQ); scores range from 0-60, higher scores reflect more perseveration |
Baseline
|
|
Belief Updating
Délai: Baseline
|
Expectations of prior volatility (mu3) calculated from reversal learning task; higher parameter scores reflect greater expectations of volatility |
Baseline
|
|
BADE
Délai: Baseline
|
Evidence Integration Impairment (EII) will be calculated based on decisions on the Bias Against Disconfirmatory Evidence task. Higher scores reflect more difficulty integrating information |
Baseline
|
|
Interoceptive Awareness
Délai: Baseline
|
Multidimensional Assessment of Interoceptive Awareness-2; scores range from 0-185; higher scores reflect better interpersonal awareness |
Baseline
|
|
Dissociation
Délai: Baseline
|
Cernis Felt Sense of Anomaly Scale (CEFSA); scores range from 0-140, higher scores reflect more severe dissociative experiences |
Baseline
|
|
Childhood Trauma
Délai: Baseline
|
Childhood Trauma Questionnaire (CTQ)- scores range from 5-100, higher scores reflect more severe childhood maltreatment |
Baseline
|
|
DACOBS
Délai: Baseline
|
Davos Assessment of Cognitive Biases Scale; higher scores reflect more severe cognitive biases. Scores range from 42-294 |
Baseline
|
Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Julia Sheffield, PhD, Vanderbilt University Medical Center
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 201489
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Étudie un produit d'appareil réglementé par la FDA américaine
Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .