The primary objective of the study is to assess the tolerability of peanut protein in pediatric patients (6-17 years old) treated with dupilumab monotherapy, in which tolerability is defined as the proportion of patients who safely pass a double-blind placebo-controlled food challenge (DBPCFC) at week 24. The secondary objectives are: * To determine whether dupilumab treatment improves peanut tolerability, defined as a change in the cumulative tolerated dose (log transformed) of peanut protein during a DBPCFC * To evaluate the safety and tolerability of dupilumab treatment in peanut allergic patients * To evaluate the effects of dupilumab treatment on the levels of peanut-specific Immunoglobulin E (IgE) * To evaluate the treatment effect of dupilumab on the average wheal size after a titrated skin prick test (SPT), as measured by area under curve (AUC) of the average wheal size induced by peanut extract at different concentrations * To assess the incidence of treatment-emergent anti-drug antibodies (ADA) to dupilumab in patients over time
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
25
Dupilumab weight-based dosing will be administered subcutaneously (SC) in a single-use, pre-filled syringe every two weeks (Q2W)
Regeneron Investigational Site
Mountain View, California, United States
Regeneron Investigational Site
Tampa, Florida, United States
Regeneron Investigational Site
Indianapolis, Indiana, United States
Regeneron Investigational Site
Ypsilanti, Michigan, United States
Regeneron Investigational Site
Great Neck, New York, United States
Regeneron Investigational Site
The Bronx, New York, United States
Regeneron Investigational Site
Hamilton, Ontario, Canada
Regeneron Investigational Site
Toronto, Ontario, Canada
Regeneron Investigational Site
Montreal, Quebec, Canada
Percentage of Participants Treated With Dupilumab Who Passed a DBPCFC With at Least 444 mg (Cumulative) Peanut Protein at Week 24
Symptoms considered to be allergic were graded using the Consortium of Food Allergy Research (CoFAR) Grading Scale for Systemic Allergic Reactions. The scale is Grade 1 (Mild) through 5, the higher the grade, the more severe the allergic reaction. Participants were considered to have passed the DBPCFC if they did not experience any objective Grade 1 reaction. Percentage of participants treated with dupilumab who passed the DBPCFC with at least 444 mg (cumulative) peanut protein at Week 24 was reported.
Time frame: At Week 24
Change From Baseline in Cumulative Tolerated Dose (Log Transformed) of Peanut Protein During a DBPCFC at Weeks 24 and 36
Change from baseline in cumulative tolerated dose (log transformed) of peanut protein during a DBPCFC at Week 24 and Week 36 was reported.
Time frame: Weeks 24 and 36
Percentage of Participants Treated With Dupilumab Who Passed a DBPCFC With at Least 444 mg (Cumulative) Peanut Protein at Week 36
Symptoms considered to be allergic were graded using the Consortium of Food Allergy Research (CoFAR) Grading Scale for Systemic Allergic Reactions. The scale is Grade 1 (Mild) through 5, the higher the grade, the more severe the allergic reaction. Participants were considered to have passed the DBPCFC if they did not experience any objective Grade 1 reaction. Only participants treated with dupilumab who passed at least 444 mg (cumulative) peanut challenge at Week 24 were eligible for Week 36 DBFC.
Time frame: At Week 36
Percentage of Participants Treated With Dupilumab Who Passed a DBPCFC With at Least 1044 mg (Cumulative) Peanut Protein at Week 24
Symptoms considered to be allergic were graded using the Consortium of Food Allergy Research (CoFAR) Grading Scale for Systemic Allergic Reactions. The scale is Grade 1 (Mild) through 5, the higher the grade, the more severe the allergic reaction. Participants were considered to have passed the DBPCFC if they did not experience any objective Grade 1 reaction. Percentage of participants treated with dupilumab who passed a DBPCFC with at least 1044 mg (cumulative) peanut protein at Week 24 was reported.
Time frame: At Week 24
Percentage of Participants Treated With Dupilumab Who Passed a DBPCFC With at Least 1044 mg (Cumulative) Peanut Protein at Week 36
Symptoms considered to be allergic were graded using the Consortium of Food Allergy Research (CoFAR) Grading Scale for Systemic Allergic Reactions. The scale is Grade 1 (Mild) through 5, the higher the grade, the more severe the allergic reaction. Participants were considered to have passed the DBPCFC if they did not experience any objective Grade 1 reaction. Only participants treated with dupilumab who passed at least 444 mg (cumulative) peanut challenge at Week 24 were eligible for Week 36 DBFC.
Time frame: At Week 36
Percentage of Participants Treated With Dupilumab Who Passed a DBPCFC With at Least 2044 mg (Cumulative) Peanut Protein at Week 24
Symptoms considered to be allergic were graded using the Consortium of Food Allergy Research (CoFAR) Grading Scale for Systemic Allergic Reactions. The scale is Grade 1 (Mild) through 5, the higher the grade, the more severe the allergic reaction. Participants were considered to have passed the DBPCFC if they did not experience any objective Grade 1 reaction. Percentage of participants treated with dupilumab who passed a DBPCFC with at least 2044 mg (cumulative) peanut protein at Week 24 was reported.
Time frame: At Week 24
Percentage of Participants Treated With Dupilumab Who Passed a DBPCFC With at Least 2044 mg (Cumulative) Peanut Protein at Week 36
Symptoms considered to be allergic were graded using the Consortium of Food Allergy Research (CoFAR) Grading Scale for Systemic Allergic Reactions. The scale is Grade 1 (Mild) through 5, the higher the grade, the more severe the allergic reaction. Participants were considered to have passed the DBPCFC if they did not experience any objective Grade 1 reaction. Only participants treated with dupilumab who passed at least 444 mg (cumulative) peanut challenge at Week 24 were eligible for Week 36 DBFC.
Time frame: At Week 36
Percent Change From Baseline in Peanut-specific Immunoglobulin E (sIgE) at Weeks 4, 8, 12, 16, 24, and 36
Percent change from baseline in sIgE at Weeks 4, 8, 12, 16, 24, and 36 was reported.
Time frame: Weeks 4, 8, 12, 16, 24, and 36
Change From Baseline in Titrated Skin Prick Test (SPT) Measured by Average Wheal Size Area Under the Curve (AUC) After Peanut Allergen Stimulation at Different Concentrations at Weeks 4, 12, 24, and 36
The titrated SPT is the skin testing for atopic response at different concentrations of peanut extract with saline as negative control and histamine as positive controls. Wheal size induced by peanut extract at each concentration was calculated as average of largest diameter and perpendicular midpoint diameter. The AUC for titrated SPT was calculated using the mean wheal diameter versus the concentration at which the wheal diameter was measured, which was then normalized to concentration. Change from baseline in titrated SPT as measured by average wheal size AUC after peanut allergen stimulation at different concentrations at Weeks 4, 12, 24, and 36 was reported.
Time frame: Weeks 4, 12, 24, and 36
Percentage of Participants With Grade 2 or Above Allergic Reactions During the DBPCFC at Week 24
Symptoms considered to be allergic were graded using the Consortium of Food Allergy Research (CoFAR) Grading Scale for Systemic Allergic Reactions. The scale is Grade 1 (Mild) through 5, the higher the grade, the more severe the allergic reaction. Percentage of participants with Grade 2 (Moderate) or above allergic reactions during the DBPCFC at Week 24 was reported.
Time frame: At Week 24
Percentage of Participants Who Used Epinephrine as a Rescue Medication During the DBPCFC at Week 24
Percentage of participants who used Epinephrine as a rescue medication during the DBPCFC at Week 24 was reported.
Time frame: At Week 24
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