Clinical Trial

Effectiveness of a Cognitive and Behavioral Treatment Program in People With Idiopathic Environmental Intolerance (IEI)

Study acronym: BELIEFS
Recruiting
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Summary
Idiopathic Environmental Intolerance (IEI) denotes a functional disorder represented by heterogeneous symptoms that sufferers attribute to specific environmental agents and for which there may be no solid evidence of an underlying physiological cause. We are conducting a randomized controlled trial study to compare patients before and after a newly developed cognitive behavioral therapy treatment program for IEI, with respect to behavioral and psychometric variables. The results of this research project are expected to contribute to advancements in the clinical treatment of IEI, as well as to elaborate on existing theoretical models of IEI.
Protocol Amendment History 3 amendments
This ClinicalTrials.gov record has been amended 3 times since 2023-07-26; most recent amendment 2025-08-07.
Status change: Not Yet Recruiting → Recruiting 2024-11-25
Trial Details
NCT Number NCT05973214
Lead Sponsor Institut National de la Santé Et de la Recherche Médicale, France
Conditions Idiopathic Environmental Intolerance
Enrollment 82 participants
Start Date 2024-02-20
Primary Completion 2027-02 (estimated)
Study Completion 2028-11 (estimated)
Updated on ClinicalTrials.gov 2025-08-13