- ICH GCP
- Rejestr badań klinicznych w USA
- Badanie kliniczne NCT07611435
Beginning to Assess an Appropriate CONtrol for Oral Food Challenges in Alpha-Gal Syndrome (CoFAR-13) - BeACON4AG (BeACON4AG)
Beginning to Assess an Appropriate CONtrol for Oral Food Challenges in Alpha-Gal Syndrome (CoFAR-13)
This is a multisite, randomized, double-blind, controlled cross-over trial with detailed characterization of participants with varying clinical sub-phenotypes of Alpha-gal Syndrome (AGS) who are then evaluated by oral food challenges with alpha-gal Knock Out (KO) pork versus Wild Type (WT) pork. Each participant will serve as their own control and ingest both alpha-gal-KO and WT pork on different days, with a minimum of an 8-day washout period between oral food challenges.
The primary objective is to determine whether the odds of positive challenges among participants with suspected alpha-gal syndrome are lower with alpha-gal Knock Out (KO) pork as compared to Wild Type (WT) pork during Double Blind Food Challenge (DBFC)
Przegląd badań
Status
Warunki
Typ studiów
Zapisy (Szacowany)
Faza
- Faza 2
Kontakty i lokalizacje
Lokalizacje studiów
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-
Arkansas
-
Little Rock, Arkansas, Stany Zjednoczone, 72202
- Jeszcze nie rekrutacja
- Arkansas Children's Hospital Research Institute: Department of Pediatrics, Allergy & Immunology
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Kontakt:
- Aprile Wicker
- Numer telefonu: 501-364-1998
- E-mail: wickeraj@archildrens.org
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Główny śledczy:
- Stacie Jones, MD
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North Carolina
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Chapel Hill, North Carolina, Stany Zjednoczone, 27599
- Jeszcze nie rekrutacja
- North Carolina Children's Hospital: Department of Pediatrics, Division of Allergy, Immunology and Rheumatology
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Kontakt:
- Morgan Goins
- Numer telefonu: 919-445-7031
- E-mail: morgan_goins@med.unc.edu
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Główny śledczy:
- Sarah McGill, MD, MSc
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Tennessee
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Nashville, Tennessee, Stany Zjednoczone, 37232
- Rekrutacyjny
- Vanderbilt University Medical Center: Division of Pediatric Allergy, Immunology, and Pulmonary Medicine
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Kontakt:
- Theresa Rogers
- Numer telefonu: 615-343-1277
- E-mail: theresa.j.rogers@vumc.org
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Główny śledczy:
- Cosby Stone, Jr, MD, MPH
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Virginia
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Charlottesville, Virginia, Stany Zjednoczone, 22908
- Jeszcze nie rekrutacja
- University of Virginia Health System: Division of Asthma & Immunology
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Główny śledczy:
- Jeffrey Wilson, MD
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Kryteria uczestnictwa
Kryteria kwalifikacji
Wiek uprawniający do nauki
- Dziecko
- Dorosły
Akceptuje zdrowych ochotników
Opis
Inclusion Criteria:
- Able to understand and provide informed consent and/or have a parent or guardian able to understand and provide informed consent. Participants 12-17 years old must be able to provide assent
- Participants who are willing to complete study procedures and follow-up
- Have clinical history consistent with Alpha-gal Syndrome (AGS)
- Have alpha-gal-specific Immunoglobin E (IgE) >= 0.1KU/L at screening
- Report reaction consistent with AGS within the previous 24 months (prior to enrollment)
- If with reproductive potential, agree to be abstinent or use an US Food and Drug Administration (FDA) approved method of birth control for the duration of the study
- Willing to be trained on the proper use of a device for the self-administration of epinephrine (i.e., autoinjector or intra-nasal spray) and willing to have two doses available for the duration of the study
Exclusion Criteria:
- Unwilling to consume pork (native/wild type or genetically modified to no longer contain alpha-gal) during Double Blind Food Challenge (DBFC)
- Have underlying health conditions suggesting that participants should not undergo an oral food challenge, including conditions that may be exacerbated by oral food challenge or treatment with epinephrine (e.g., history of ischemic heart disease, uncontrolled asthma, or cardiac arrhythmia)
- Likely to move away from the study site prior to completion of follow up or do not have regular access to a phone
- Have a history of severe anaphylaxis in response to pork or alpha-gal ingestion, defined as neurologic compromise or requiring intubation or cardiovascular compromise defined as myocardial infarction or other clinically significant cardiovascular events
- Unwilling or unable to stop use of medications that may interfere with oral food challenge interpretation, reaction, or treatment for 5 half-lives prior to the challenge (e.g., antihistamines, beta blockers, Non-Steroidal Anti-Inflammatory Drugs (NSAIDs)
- Have used systemic immunomodulators (including biologics and monoclonal antibody therapy) within 6 months before study entry
- Have underlying health conditions that may increase the chance of false positive challenges (e.g., inflammatory bowel disease, chronic urticaria, systemic mastocytosis, and mast cell activating syndrome)
- Have used systemic steroids within 4 weeks of study entry
- Have used any investigational agent within 6 months of study entry
- Are on build-up of immunotherapy such as Antigen-based Immunotherapy (AIT), Oral Immunotherapy (OIT), Sublingual Immunotherapy (SLIT), or Epicutaneous Immunotherapy (EPIT)
- Have reacted to mammalian products with onset of symptoms within 30 minutes of oral ingestion
- Have current, diagnosed, mental illness or current, diagnosed or self-reported drug or alcohol abuse that, in the opinion of the investigator, would interfere with the participant's ability to comply with study requirements
- Are pregnant or plan to become pregnant during the course of the study
- Have past or current medical problems or findings from physical examination or laboratory testing that are not listed above, which, in the opinion of the investigator, may pose additional risks from participation in the study, may interfere with the participant's ability to comply with study requirements, and/or may impact the quality or interpretation of the data obtained from the study
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
- Główny cel: Diagnostyczny
- Przydział: Randomizowane
- Model interwencyjny: Zadanie krzyżowe
- Maskowanie: Podwójnie
Broń i interwencje
Grupa uczestników / Arm |
Interwencja / Leczenie |
|---|---|
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Eksperymentalny: Sequence 1: KO, then WT
Each participant will serve as their own control and undergo a DBFC to alpha-gal KO pork, followed by a minimum of a 8-day washout period, then a DBFC to WT pork.
|
Each participant will serve as their own control and ingest both alpha-gal-KO and WT pork on different days, with a minimum of an 8-day washout period between oral food challenges
Each participant will serve as their own control and ingest both alpha-gal-KO and WT pork on different days, with a minimum of an 8-day washout period between oral food challenges
|
|
Eksperymentalny: Sequence 2: WT, then KO
Each participant will serve as their own control and undergo a DBFC to WT pork, followed by a minimum of a 8-day washout period, then a DBFC to alpha-gal KO pork.
|
Each participant will serve as their own control and ingest both alpha-gal-KO and WT pork on different days, with a minimum of an 8-day washout period between oral food challenges
Each participant will serve as their own control and ingest both alpha-gal-KO and WT pork on different days, with a minimum of an 8-day washout period between oral food challenges
|
Co mierzy badanie?
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Positive Double Blind Food Challenge (DBFC) result to 150 grams of either alpha-gal knockout (KO) pork or wild type (WT) pork.
Ramy czasowe: At Visit 1 (within 2 months of screening) or Visit 2 (between 8 and 30 days of Visit 1)
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A positive challenge will be defined as experiencing symptoms grade 2 or higher on the Consortium for Food Allergy Research (CoFAR) Grading Scale for Systemic Allergic Reactions (scale range from 1 to 5, with higher scores indicating a more severe reaction) within 6 hours of ingestion.
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At Visit 1 (within 2 months of screening) or Visit 2 (between 8 and 30 days of Visit 1)
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Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Alpha-gal sub-phenotype as determined by symptoms resulting from Double Blind Food Challenge (DBFC) to wild-type (WT) pork.
Ramy czasowe: At Visit 1 (within 2 months of screening) or Visit 2 (between 8 and 30 days of Visit 1)
|
Post-challenge alpha-gal sub-phenotypes as defined by reaction to their first DBFC to WT pork: anaphylaxis, cutaneous-only, or GI-only.
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At Visit 1 (within 2 months of screening) or Visit 2 (between 8 and 30 days of Visit 1)
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Gastrointestinal Symptom Rating Scale - Irritable Bowel Syndrome (GSRS-IBS) scores in response to 150 grams of Knock Out (KO) or Wild Type (WT) pork at each challenge visit
Ramy czasowe: At 7 days following completion of Double Blind Food Challenge (DBFC) at Visit 1 (within 2 months of screening) or Visit 2 (between 8 and 30 days of Visit 1)
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Validated patient-reported outcome measures: gastrointestinal symptoms based on GSRS-IBS score (score range from 15 to 105, with higher scores indicating a worse outcome).
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At 7 days following completion of Double Blind Food Challenge (DBFC) at Visit 1 (within 2 months of screening) or Visit 2 (between 8 and 30 days of Visit 1)
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Urticaria Activity Score (UAS7) in response to 150 grams of Knock Out (KO) or Wild Type (WT) pork at each challenge visit.
Ramy czasowe: At 7 days following completion of Double Blind Food Challenge (DBFC) at Visit 1 (within 2 months of screening) or Visit 2 (between 8 and 30 days of Visit 1)
|
Validated patient-reported outcome measures: urticaria symptoms based on UAS7 score (score range from 0 to 42, with higher scores indicating a worse outcome).
|
At 7 days following completion of Double Blind Food Challenge (DBFC) at Visit 1 (within 2 months of screening) or Visit 2 (between 8 and 30 days of Visit 1)
|
Współpracownicy i badacze
Współpracownicy
Śledczy
- Krzesło do nauki: Leonard Bacharier, M.D., Vanderbilt University Medical Center: Division of Pediatric Allergy, Immunology, and Pulmonary Medicine
- Krzesło do nauki: Rachel Robison, M.D., Vanderbilt University Medical Center: Division of Allergy, Pulmonary and Critical Care Medicine
Publikacje i pomocne linki
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów (Szacowany)
Zakończenie podstawowe (Szacowany)
Ukończenie studiów (Szacowany)
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Rzeczywisty)
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Dodatkowe istotne warunki MeSH
Inne numery identyfikacyjne badania
- DAIT CoFAR-13
Plan dla danych uczestnika indywidualnego (IPD)
Planujesz udostępniać dane poszczególnych uczestników (IPD)?
Opis planu IPD
Ramy czasowe udostępniania IPD
Kryteria dostępu do udostępniania IPD
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Bada produkt urządzenia regulowany przez amerykańską FDA
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