The purpose of this Phase III study is to evaluate the clinical efficacy and safety of remibrutinib in participants with peanut, or cow's milk ("milk", cooked and uncooked) or hen's egg ("egg", cooked and uncooked) immunoglobulin E (IgE)- mediated allergy in comparison to placebo.
This study is a Phase III, 52-week, multi-center, placebo controlled pivotal study to evaluate the efficacy and safety of remibrutinib compared to placebo in adolescent and adult participants with peanut, milk, or egg IgE-mediated allergy. This study will be conducted in 4 Sub-studies: Sub-study 1 to evaluate response to peanut allergen at Week 24, Sub-study 2 to evaluate response to milk allergen at Week 24, Sub-study 3 to evaluate response to egg allergen at Week 24, and Sub-study 4 to evaluate response to peanut or milk, or egg allergen at Week 4. Treatment period 1: Participants will receive one of the two treatment groups, double-blind remibrutinib or placebo, for a period up to 24 weeks for Sub-studies 1, 2, and 3, and up to 4 weeks for Sub-study 4. Treatment period 2: For all Sub-studies, the open label period starts at Week 24, except for Sub-study 4, where the open label period starts at Week 4. Participants from each Sub-study will continue in the study and receive, or initiate, active open label remibrutinib until Week 52. Following completion of the treatment period 2, eligible participants may enroll in a separate open-label post-trial access study and receive remibrutinib to evaluate long-term treatment effects. Participants who do not enroll in the post-trial access study will enter a 4-week safety follow-up period off treatment, during which adverse events will be monitored.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
576
Oral administration of remibrutinib.
Oral administration of placebo.
Allervie Clinical Research
Birmingham, Alabama, United States
RECRUITINGMedical Resch of Arizona-Div of Allergy Asthma and Immunology
Scottsdale, Arizona, United States
RECRUITINGSub-study 1: Number of participants achieving response status (tolerated at least 600 mg of peanut protein)
Response status is defined as tolerating an oral dose of at least 600 mg peanut protein (1044 mg cumulative tolerated dose) without dose-limiting symptoms during the double-blind placebo-controlled food challenge (DBPCFC).
Time frame: Week 24
Sub-study 2: Number of participants achieving response status (tolerated at least 1000 mg of milk protein)
Response status is defined as tolerating an oral dose of at least 1000 mg milk protein (2044 mg cumulative tolerated dose) without dose-limiting symptoms during the double-blind placebo-controlled food challenge (DBPCFC).
Time frame: Week 24
Sub-study 3: Number of participants achieving response status (tolerated at least 1000 mg of egg protein)
Response status is defined as tolerating an oral dose of at least 1000 mg egg protein (2044 mg cumulative tolerated dose) without dose-limiting symptoms during the double-blind placebo-controlled food challenge (DBPCFC).
Time frame: Week 24
Sub-study 1: Number of participants achieving response status (tolerated at least 1000 mg of peanut protein)
Response status is defined as tolerating an oral dose of at least 1000 mg peanut protein (2044 mg cumulative tolerated dose) without dose-limiting symptoms during the double-blind placebo-controlled food challenge (DBPCFC).
Time frame: Week 24
Sub-study 1: Change from baseline in Log10-Transformed Maximum Tolerated Single Dose of peanut protein
Change from baseline in log10-transformed maximum tolerated single dose of peanut protein without dose-limiting symptoms during the DBPCFC.
Time frame: Baseline and Week 24
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Arkansas Childrens Hosp Rsch Inst
Little Rock, Arkansas, United States
RECRUITINGCalifornia Allergy and Asthma Medical Group
Los Angeles, California, United States
RECRUITINGInstitute for Asthma and Allergy PC
Chevy Chase, Maryland, United States
RECRUITINGRespiratory Medicine Research Institute of Michigan
Ypsilanti, Michigan, United States
RECRUITINGWeiss Medical
Riverdale, New Jersey, United States
RECRUITINGNorthwell Health
New York, New York, United States
RECRUITINGNational Allergy and Asthma Research LLS
North Charleston, South Carolina, United States
RECRUITINGWestern Sky Medical Research
El Paso, Texas, United States
RECRUITINGSub-study 2: Change from baseline in Log10-Transformed Maximum Tolerated Single Dose of milk protein
Change from baseline in log10-transformed maximum tolerated single dose of milk protein without dose-limiting symptoms during the DBPCFC.
Time frame: Baseline and Week 24
Sub-study 3: Change from baseline in Log10-Transformed Maximum Tolerated Single Dose of egg protein
Change from baseline in log10-transformed maximum tolerated single dose of egg protein without dose-limiting symptoms during the DBPCFC.
Time frame: Baseline and Week 24
Sub-study 1: Number of participants by Maximum Symptom Severity During Peanut Protein Challenge
Maximum severity of symptoms occurring at any challenge dose up to and including 1000 mg peanut protein during the DBPCFC. Symptom severity is categorized as None, Mild, Moderate, or Severe.
Time frame: Week 24
Sub-study 2: Number of participants by Maximum Symptom Severity During Milk Protein Challenge
Maximum severity of symptoms occurring at any challenge dose up to and including 1000 mg milk protein during the DBPCFC. Symptom severity is categorized as None, Mild, Moderate, or Severe.
Time frame: Week 24
Sub-study 3: Number of participants by Maximum Symptom Severity During Egg Protein Challenge
Maximum severity of symptoms occurring at any challenge dose up to and including 1000 mg egg protein during the DBPCFC. Symptom severity is categorized as None, Mild, Moderate, or Severe.
Time frame: Week 24
Sub-study 1: Number of participants achieving response status (tolerated at least 3000 mg of peanut protein)
Response status is defined as tolerating an oral dose of 3000 mg peanut protein (5044 mg cumulative tolerated dose) without dose-limiting symptoms during the DBPCFC.
Time frame: Week 24
Sub-study 2: Number of participants achieving response status (tolerated at least 3000 mg of milk protein)
Response status is defined as tolerating an oral dose of 3000 mg milk protein (5044 mg cumulative tolerated dose) without dose-limiting symptoms during the DBPCFC.
Time frame: Week 24
Sub-study 3: Number of participants achieving response status (tolerated at least 3000 mg of egg protein)
Response status is defined as tolerating an oral dose of 3000 mg egg protein (5044 mg cumulative tolerated dose) without dose-limiting symptoms during the DBPCFC.
Time frame: Week 24
Sub-study 4: Number of participants achieving combined response status (tolerated at least 600 mg of peanut protein, or at least 1000 mg of milk or egg protein)
Combined response status is defined as tolerating at least 600 mg peanut protein (1044 mg cumulative tolerated dose) or at least 1000 mg milk or egg protein (2044 mg cumulative tolerated dose), as applicable, without dose-limiting symptoms during the DBPCFC.
Time frame: Week 4
Sub-study 4: Number of participants achieving combined response status (tolerated at least 1000 mg of peanut, milk or egg protein)
Combined response status is defined as tolerating at least 1000 mg peanut, milk, or egg protein, as applicable (2044 mg cumulative tolerated dose), without dose-limiting symptoms during the DBPCFC.
Time frame: Week 4
Sub-study 4: Change from baseline in Log10-Transformed Maximum Tolerated Single Dose
Combined change from baseline in log10-transformed maximum tolerated single dose of peanut, milk, or egg protein, as applicable, without dose-limiting symptoms during the DBPCFC.
Time frame: Baseline and Week 4
Sub-study 4: Number of participants by Maximum Symptom Severity During Food Challenge
Combined maximum severity of symptoms occurring at any challenge dose up to and including 1000 mg peanut, milk, or egg protein, as applicable, during the DBPCFC. Symptom severity is categorized as None, Mild, Moderate, or Severe.
Time frame: Week 4
Sub-study 4: Number of participants achieving combined response status (tolerated at least 3000 mg of peanut, milk or egg protein)
Combined response status is defined as tolerating an oral dose of 3000 mg peanut, milk, or egg protein, as applicable (5044 mg cumulative tolerated dose), without dose-limiting symptoms during the DBPCFC.
Time frame: Week 4
Sub-studies 1, 2, 3 and 4: Incidence and severity of Adverse Events (AEs) and Serious Adverse Events (SAEs)
Number of participants with AEs and SAEs, including changes in vital signs, electrocardiograms (ECGs) and laboratory values qualifying and reported as AEs.
Time frame: Up to 56 weeks