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Peanut Oral Immunotherapy in Children (IMPACT)

Primary Purpose

Peanut Hypersensitivity

Status
Completed
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
Peanut Oral Immunotherapy - Liquid Extract
Placebo for Peanut Oral Immunotherapy - Liquid Extract form
Peanut Oral Immunotherapy - Peanut Flour
Placebo for Peanut Oral Immunotherapy - Peanut Flour
Sponsored by
National Institute of Allergy and Infectious Diseases (NIAID)
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Peanut Hypersensitivity focused on measuring Allergy, Peanut, Peanut allergy, Hypersensitivity, Immunotherapy, Desensitization, Immunologic

Eligibility Criteria

12 Months - 48 Months (Child)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Clinical history of peanut allergy or avoidance of peanut without ever having eaten peanut;
  • Serum immunoglobulin E (IgE) to peanut of ≥5 kUA/L determined by UniCAP™, an in-vitro test system for diagnosis and monitoring of allergy and inflammation;
  • Wheal ≥ 3mm on skin prick test to peanut extract compared to a negative control;
  • A clinical reaction at or below ingestion of 1 g peanut flour (500 mg peanut protein) during screening OFC;
  • Written informed consent from parent/guardian.

Exclusion Criteria:

  • History of severe anaphylaxis with hypotension to peanut;
  • Documented clinical history of allergy to oat;
  • Suspected allergy to oat and a wheal ≥7mm on skin prick test to oat extract compared to a negative control;
  • Chronic disease other than asthma, atopic dermatitis, rhinitis requiring therapy; e.g., heart disease or diabetes;
  • Active eosinophilic gastrointestinal disease in the past 2 years;
  • Participation in any interventional study for the treatment of food allergy in the 6 months prior to visit -1;
  • Inhalant allergen immunotherapy that has not yet reached maintenance dosing;
  • Severe asthma, as indicated by repeated hospitalizations or hospital emergency department visits;
  • Moderate asthma defined according to National Asthma Education and Prevention Program Expert;
  • Panel that requires more than fluticasone 440 mcg or its equivalent daily for adequate control;
  • Inability to discontinue antihistamines for skin testing, OFC and the initial dose escalation;
  • Use of omalizumab or other non-traditional forms of allergen immunotherapy (e.g., oral or sublingual) in the 12 months prior to visit -1;
  • Any systemic therapy which in the judgment of the investigator could be immunomodulatory (e.g. rituximab) in the 12 months prior to visit -1, systemic corticosteroid therapy of up to a total of three weeks is allowed;
  • Use of any investigational drug in 90 days prior to visit -1;
  • Plan to use any investigational drug during the study period;
  • The presence of any medical condition that the investigator deems incompatible with participation in the trial.

Sites / Locations

  • University of Arkansas for Medical Sciences: Arkansas Children's Hospital
  • Stanford University School of Medicine
  • Johns Hopkins Hospital
  • Mount Sinai School of Medicine
  • UNC Chapel-Hill

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Placebo Comparator

Arm Label

Peanut Oral Immune Therapy (OIT)

Peanut Placebo

Arm Description

Peanut OIT for 134 weeks followed by peanut avoidance for 26 weeks.

Peanut placebo for 134 weeks followed by peanut avoidance for 26 weeks. The placebo extract will be derived from oat flour source material.

Outcomes

Primary Outcome Measures

Percentage of Participants Desensitized to Peanut Protein After 134 Weeks of Oral Immunotherapy (OIT)
Definition of desensitized to peanut: A participant who passed the blinded (masked) oral food challenge (OFC) to10 grams of peanut flour (=5 grams of peanut protein) without significant symptoms.* *Significant symptoms include hives, wheezing, vomiting, or laryngeal edema.

Secondary Outcome Measures

Percentage of Tolerant Participants at Week 160
Definition of Tolerant: A participant who passed the oral food challenge (OFC) to 10 grams of peanut flour (=5 grams of peanut protein).
Count of Participants With Transient Desensitization
Definition of transient desensitization: A participant who passed the blinded (masked) oral food challenge (OFC) to 10 grams peanut flour (=5 grams peanut protein) at week 134 and failed the week 160 in the Peanut oral immunotherapy (OIT) group.
Highest Tolerated Cumulative Dose
The highest tolerated cumulative dose of peanut protein during the blinded (masked) oral food challenge (OFC) at Week 160, analyzed within and between both placebo and peanut OIT groups. The highest cumulative dose of peanut protein tolerated for each participant was analyzed as a continuous outcome. Any randomized participant without an evaluable blinded (masked) OFC was imputed as not tolerant. For the continuous highest cumulative dose endpoint, this is defined as having a highest cumulative dose imputed as zero.
Percentage of Participants That Withdrew From the Study
Percentage of participants that withdrew from study participation, listed by study phase (at time of study withdrawal).

Full Information

First Posted
May 23, 2013
Last Updated
February 26, 2020
Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Collaborators
Immune Tolerance Network (ITN)
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1. Study Identification

Unique Protocol Identification Number
NCT01867671
Brief Title
Peanut Oral Immunotherapy in Children
Acronym
IMPACT
Official Title
Oral Immunotherapy for Induction of Tolerance and Desensitization in Peanut-Allergic Children (ITN050AD)
Study Type
Interventional

2. Study Status

Record Verification Date
February 2020
Overall Recruitment Status
Completed
Study Start Date
August 13, 2013 (Actual)
Primary Completion Date
July 2, 2018 (Actual)
Study Completion Date
December 21, 2018 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Collaborators
Immune Tolerance Network (ITN)

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This is a randomized, double-blind, placebo-controlled, multi-center study comparing peanut oral immunotherapy (OIT) to placebo in the induction of tolerance and desensitization in peanut-allergic children. Eligible participants with peanut allergy will be randomly assigned to receive either peanut OIT or placebo for 134 weeks followed by peanut avoidance for 26 weeks.
Detailed Description
An initial oral food challenge (OFC) to 1 g of peanut flour (500 mg peanut protein) will be conducted. Participants must have a clinical reaction during this OFC to initiate study dosing. After the initial OFC, the study design includes four phases: Initial dose escalation (1 day): Peanut or placebo dosing will be given incrementally and increase every 20 minutes until a dose of 12 mg peanut flour (6 mg peanut protein) or placebo flour is given. Build-up (30 weeks): Initial observed dose administration of highest tolerated dose, followed by daily OIT at home with return visit every 2 weeks for dose escalation. Maintenance (104 weeks):The participant will continue on daily OIT with return visits every 13 weeks. At the end of this phase the participant will undergo a blinded OFC to 10 g peanut flour (5 g peanut protein). Avoidance (26 weeks): In this final phase participants will be seen every 13 weeks. At the completion of this phase participants will have a final blinded OFC to 10g peanut flour (5 g peanut protein).

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Peanut Hypersensitivity
Keywords
Allergy, Peanut, Peanut allergy, Hypersensitivity, Immunotherapy, Desensitization, Immunologic

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigator
Allocation
Randomized
Enrollment
146 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Peanut Oral Immune Therapy (OIT)
Arm Type
Experimental
Arm Description
Peanut OIT for 134 weeks followed by peanut avoidance for 26 weeks.
Arm Title
Peanut Placebo
Arm Type
Placebo Comparator
Arm Description
Peanut placebo for 134 weeks followed by peanut avoidance for 26 weeks. The placebo extract will be derived from oat flour source material.
Intervention Type
Biological
Intervention Name(s)
Peanut Oral Immunotherapy - Liquid Extract
Intervention Description
Used during initial dose escalation for doses 0.1 to 0.8 mg.
Intervention Type
Biological
Intervention Name(s)
Placebo for Peanut Oral Immunotherapy - Liquid Extract form
Intervention Description
Similar in appearance, texture, and taste to peanut liquid extract.
Intervention Type
Biological
Intervention Name(s)
Peanut Oral Immunotherapy - Peanut Flour
Intervention Description
This will be used for the remainder of dose escalation, build-up, and maintenance.
Intervention Type
Biological
Intervention Name(s)
Placebo for Peanut Oral Immunotherapy - Peanut Flour
Intervention Description
Similar in appearance, texture, and taste to peanut flour.
Primary Outcome Measure Information:
Title
Percentage of Participants Desensitized to Peanut Protein After 134 Weeks of Oral Immunotherapy (OIT)
Description
Definition of desensitized to peanut: A participant who passed the blinded (masked) oral food challenge (OFC) to10 grams of peanut flour (=5 grams of peanut protein) without significant symptoms.* *Significant symptoms include hives, wheezing, vomiting, or laryngeal edema.
Time Frame
Week 134
Secondary Outcome Measure Information:
Title
Percentage of Tolerant Participants at Week 160
Description
Definition of Tolerant: A participant who passed the oral food challenge (OFC) to 10 grams of peanut flour (=5 grams of peanut protein).
Time Frame
Week 160
Title
Count of Participants With Transient Desensitization
Description
Definition of transient desensitization: A participant who passed the blinded (masked) oral food challenge (OFC) to 10 grams peanut flour (=5 grams peanut protein) at week 134 and failed the week 160 in the Peanut oral immunotherapy (OIT) group.
Time Frame
Week 134, Week 160
Title
Highest Tolerated Cumulative Dose
Description
The highest tolerated cumulative dose of peanut protein during the blinded (masked) oral food challenge (OFC) at Week 160, analyzed within and between both placebo and peanut OIT groups. The highest cumulative dose of peanut protein tolerated for each participant was analyzed as a continuous outcome. Any randomized participant without an evaluable blinded (masked) OFC was imputed as not tolerant. For the continuous highest cumulative dose endpoint, this is defined as having a highest cumulative dose imputed as zero.
Time Frame
Week 160
Title
Percentage of Participants That Withdrew From the Study
Description
Percentage of participants that withdrew from study participation, listed by study phase (at time of study withdrawal).
Time Frame
Initial Dose Escalation through Week 160 (Tolerance Assessment)

10. Eligibility

Sex
All
Minimum Age & Unit of Time
12 Months
Maximum Age & Unit of Time
48 Months
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Clinical history of peanut allergy or avoidance of peanut without ever having eaten peanut; Serum immunoglobulin E (IgE) to peanut of ≥5 kUA/L determined by UniCAP™, an in-vitro test system for diagnosis and monitoring of allergy and inflammation; Wheal ≥ 3mm on skin prick test to peanut extract compared to a negative control; A clinical reaction at or below ingestion of 1 g peanut flour (500 mg peanut protein) during screening OFC; Written informed consent from parent/guardian. Exclusion Criteria: History of severe anaphylaxis with hypotension to peanut; Documented clinical history of allergy to oat; Suspected allergy to oat and a wheal ≥7mm on skin prick test to oat extract compared to a negative control; Chronic disease other than asthma, atopic dermatitis, rhinitis requiring therapy; e.g., heart disease or diabetes; Active eosinophilic gastrointestinal disease in the past 2 years; Participation in any interventional study for the treatment of food allergy in the 6 months prior to visit -1; Inhalant allergen immunotherapy that has not yet reached maintenance dosing; Severe asthma, as indicated by repeated hospitalizations or hospital emergency department visits; Moderate asthma defined according to National Asthma Education and Prevention Program Expert; Panel that requires more than fluticasone 440 mcg or its equivalent daily for adequate control; Inability to discontinue antihistamines for skin testing, OFC and the initial dose escalation; Use of omalizumab or other non-traditional forms of allergen immunotherapy (e.g., oral or sublingual) in the 12 months prior to visit -1; Any systemic therapy which in the judgment of the investigator could be immunomodulatory (e.g. rituximab) in the 12 months prior to visit -1, systemic corticosteroid therapy of up to a total of three weeks is allowed; Use of any investigational drug in 90 days prior to visit -1; Plan to use any investigational drug during the study period; The presence of any medical condition that the investigator deems incompatible with participation in the trial.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Wesley Burks, MD
Organizational Affiliation
UNC Chapel-Hill
Official's Role
Study Chair
First Name & Middle Initial & Last Name & Degree
Stacie M. Jones, MD
Organizational Affiliation
University of Arkansas
Official's Role
Study Chair
Facility Information:
Facility Name
University of Arkansas for Medical Sciences: Arkansas Children's Hospital
City
Little Rock
State/Province
Arkansas
ZIP/Postal Code
72202
Country
United States
Facility Name
Stanford University School of Medicine
City
Stanford
State/Province
California
ZIP/Postal Code
94040
Country
United States
Facility Name
Johns Hopkins Hospital
City
Baltimore
State/Province
Maryland
ZIP/Postal Code
21287
Country
United States
Facility Name
Mount Sinai School of Medicine
City
New York
State/Province
New York
ZIP/Postal Code
10029
Country
United States
Facility Name
UNC Chapel-Hill
City
Chapel Hill
State/Province
North Carolina
ZIP/Postal Code
27599
Country
United States

12. IPD Sharing Statement

Links:
URL
https://www.niaid.nih.gov/
Description
National Institute of Allergy and Infectious Diseases (NIAID) website
URL
https://www.niaid.nih.gov/about/dait
Description
Division of Allergy, Immunology, and Transplantation (DAIT) website
URL
http://www.immunetolerance.org
Description
Immune Tolerance Network website
URL
http://www.impactstudy.org
Description
ITN IMPACT Study website

Learn more about this trial

Peanut Oral Immunotherapy in Children

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