- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT06288672
Studio sulle allergie alimentari con patch test cutaneo IBS
Uno studio multicentrico randomizzato, in doppio cieco, controllato con placebo sull'evitamento dietetico degli allergeni alimentari di tipo 4 guidato da patch test per la sindrome dell'intestino irritabile
Participants with IBS are skin patch tested (no needles) to 80 different foods and food additives, compounded for patch testing, in search of food allergies. The testing requires 3 office visits within a 4 or 5 day period. The patches are taped to the back at Visit #. At Visit #2 48 hours later, the patches are removed from the skin and the outside border of each patch is marked with a felt tip marker. At Visit #3 (final visit) 1 or 2 days later, the patch test reading is performed by the doctor-investigator. An allergy is identified as a small red mark where the food was in contact with the skin for 48 hours. Those participants found to have food allergies are then placed on an avoidance diet (no calorie restriction) for 16 weeks where they either avoid eating the food(s) to which they are allergic (the "true" avoidance diet) or food(s) to which the testing did not show an allergy (this is called the "sham" avoidance diet). There is a 50/50 chance of going on either avoidance diet. The avoidance diet is assigned in such a way that neither the participant or the doctor-investigator knows which diet is being followed. After the 16 weeks, the participants answers a brief online questionnaire that asks about the IBS symptoms while following the avoidance diet. After the 16 week avoidance diet and final questionnaire are completed, those participants who were on the sham diet will be told of their true food allergies which they may try avoiding on their own.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
See above. When all 250 study participants have finished all parts of the study, the results will be made known to the doctor-investigators for data analysis.
Tipo di studio
Iscrizione (Stimato)
Fase
- Non applicabile
Contatti e Sedi
Contatto studio
- Nome: Michael B Stierstorfer, MD
- Numero di telefono: 215-699-1929
- Email: mbstierstorfer@gmail.com
Backup dei contatti dello studio
- Nome: Sally Iles, BSN, MBA
- Numero di telefono: 617-922-1130
- Email: sallyiles3@gmail.com
Luoghi di studio
-
-
Pennsylvania
-
North Wales, Pennsylvania, Stati Uniti, 19454
- Reclutamento
- North Wales Dermatology, PLLC
-
Contatto:
- Michael B Stierstorfer, MD
- Numero di telefono: 215-699-1929
- Email: mbstierstorfer@gmail.com
-
Contatto:
- Sally Iles, BSN, MBA
- Numero di telefono: 617-922-1130
- Email: SallyIles3@gmail.com
-
Investigatore principale:
- Michael B Stierstorfer, MD
-
Philadelphia, Pennsylvania, Stati Uniti, 19104
- Reclutamento
- University of Pennsylvania Dermatology
-
Contatto:
- Anna Kersh, MD, PhD
- Numero di telefono: 215-699-1929
- Email: admin@ibsfoodstudy.com
-
Contatto:
- Sally Iles, BA, MBA
- Numero di telefono: 617-922-1130
- Email: admin@ibsfoodstudy.com
-
-
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Irritable bowel syndrome diagnosed by a primary care provider, gastroenterologist or allergist; or
- meeting the Rome IV IBS diagnostic criteria by history and having suboptimally or poorly controlled IBS symptoms.
Exclusion Criteria:
- Under age 18 years
- Pregnant
- Severe rash
- Receiving any cortisone-containing or any of the following immunosuppressive medications within two weeks prior to patch testing or plan to do so any time during the study: cyclosporine, mycophenylate mofetil, azathioprine, tacrolimus or others within these classes of medications)
- Incapable of completing all parts of the 18-week screening period and study, including following the dietary instructions and completing all text or email questionnaires
- Exposure of back to the sun in the 2 weeks prior to patch testing Unable or unwilling to discontinue the low FODMAP diet, if relevant, starting 1 week prior to the study and for the study duration
8) Refusal to shave back hair, if relevant 9) Receiving pharmacologic therapy for IBS that has been started or changed within 30 days of study enrollment 10) Non-English speaking 11) Unable to provide written informed consent 12) Have a history of gastrointestinal disease including celiac disease, cirrhosis, gastrointestinal malignancy, inflammatory bowel disease, or diverticulitis, active within the prior 2 years. 13) Have a history of gastrointestinal surgery (except appendectomy and cholecystectomy or gallbladder removal >6 months ago) 14) Have poorly controlled psychiatric disease such as severe depression (with or without suicidal ideation), severe anxiety, schizophrenia, dementia 15) Have excessive alcohol intake (more than 1 drink per day for females and 2 drinks per day for males) 16) Use illicit substances 17) Use high-dose opiates 18) Severe allergy to adhesive tape
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Quadruplicare
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Comparatore attivo: True avoidance diet
Food patch test-directed avoidance diet for 16 weeks where participant avoids avoid eating the food(s) to which they are allergic |
Food patch test-directed avoidance diet for 16 weeks where participant avoids avoid eating the food(s) to which they are allergic |
|
Comparatore fittizio: Sham avoidance diet
Avoidance diet for 16 weeks of randomly selected foods to which the patch testing did not show an allergy |
Avoidance diet for 16 weeks of randomly selected foods to which the patch testing did not show an allergy |
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Post-Avoidance Diet Relative IBS Symptom Global Assessment
Lasso di tempo: Questionnaire to be completed promptly after completion of 16 week avoidance diet.
|
Participant global assessment of IBS symptoms compared to the three months prior to entering study, assessed by a post-avoidance diet questionnaire. The assessment is a 7 point Likert scale with 1=substantially improved; 2=moderately improved; 3=slightly improved; 4=no change; 5=slightly worse; 6=moderately worse; 7=substantially worse |
Questionnaire to be completed promptly after completion of 16 week avoidance diet.
|
Collaboratori e investigatori
Sponsor
Investigatori
- Investigatore principale: Michael B Stierstorfer, MD, North Wales Dermatology, PLLC
Pubblicazioni e link utili
Pubblicazioni generali
- Shin GH, Smith MS, Toro B, et al. Utility of food patch testing in the evaluation and management of irritable bowel syndrome. Skin. 2018;2:1-15.
- Stierstorfer MB, Toro B. Patch Test-Directed Dietary Avoidance in the Management of Irritable Bowel Syndrome. Cutis. 2021 Aug;108(2):91-95. doi: 10.12788/cutis.0321.
- Stierstorfer MB, Sha CT, Sasson M. Food patch testing for irritable bowel syndrome. J Am Acad Dermatol. 2013 Mar;68(3):377-84. doi: 10.1016/j.jaad.2012.09.010. Epub 2012 Oct 24.
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Completamento primario (Stimato)
Completamento dello studio (Stimato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
- IBS
- sindrome dell'intestino irritabile
- FODMAP
- FODMAP basso
- dieta a basso contenuto di FODMAP
- Dieta IBS
- Allergia alimentare IBS
- Soluzione IBS
- Trattamento dell'IBS
- Alimenti IBS
- Valutazione dell'IBS
- trattamento della sindrome dell'intestino irritabile
- gestione della sindrome dell’intestino irritabile
- Causa dell'IBS
- Patogenesi della sindrome dell'intestino irritabile
- valutazione della sindrome dell'intestino irritabile
- Patogenesi dell'IBS
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- 1003A
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .