Trial Outcomes & Findings for Peanut Oral Immunotherapy Study of Early Intervention for Desensitization (NCT NCT03736447)

NCT ID: NCT03736447

Last Updated: 2023-03-02

Results Overview

The percentage of subjects in the ITT population who achieve desensitization as determined by tolerating specified challenge doses of peanut protein with no more than mild allergy symptoms during the exit double-blind placebo-controlled food challenge (DBPCFC).

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

146 participants

Primary outcome timeframe

12 months

Results posted on

2023-03-02

Participant Flow

Participant milestones

Participant milestones
Measure
AR101
AR101 drug product was supplied in 2 presentations. These were pull-apart capsules containing 0.5, 1, 10, 20 and 100mg of peanut protein and sealed, foil-laminated sachets containing 300mg of peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Placebo
A Placebo matching the AR101 drug product was supplied in 2 presentations. These were pull-apart capsules matching the 0.5, 1, 10, 20 and 100mg peanut capsules but containing no peanut protein, and sealed, foil-laminated sachets matching the peanut protein sachets but without any peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Overall Study
STARTED
98
48
Overall Study
COMPLETED
83
45
Overall Study
NOT COMPLETED
15
3

Reasons for withdrawal

Reasons for withdrawal
Measure
AR101
AR101 drug product was supplied in 2 presentations. These were pull-apart capsules containing 0.5, 1, 10, 20 and 100mg of peanut protein and sealed, foil-laminated sachets containing 300mg of peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Placebo
A Placebo matching the AR101 drug product was supplied in 2 presentations. These were pull-apart capsules matching the 0.5, 1, 10, 20 and 100mg peanut capsules but containing no peanut protein, and sealed, foil-laminated sachets matching the peanut protein sachets but without any peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Overall Study
Adverse Event
5
1
Overall Study
Withdrawal by Subject
5
1
Overall Study
Lost to Follow-up
1
0
Overall Study
Physician Decision
1
0
Overall Study
Continued commitment to study treatment
3
0
Overall Study
Taste aversion to study product
0
1

Baseline Characteristics

Peanut Oral Immunotherapy Study of Early Intervention for Desensitization

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
AR101
n=98 Participants
AR101 drug product was supplied in 2 presentations. These were pull-apart capsules containing 0.5, 1, 10, 20 and 100mg of peanut protein and sealed, foil-laminated sachets containing 300mg of peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Placebo
n=48 Participants
A Placebo matching the AR101 drug product was supplied in 2 presentations. These were pull-apart capsules matching the 0.5, 1, 10, 20 and 100mg peanut capsules but containing no peanut protein, and sealed, foil-laminated sachets matching the peanut protein sachets but without any peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Total
n=146 Participants
Total of all reporting groups
Age, Customized
1-<2 years
33 Participants
n=5 Participants
16 Participants
n=7 Participants
49 Participants
n=5 Participants
Age, Customized
2-<3 years
35 Participants
n=5 Participants
15 Participants
n=7 Participants
50 Participants
n=5 Participants
Age, Customized
3-<4 years
30 Participants
n=5 Participants
17 Participants
n=7 Participants
47 Participants
n=5 Participants
Sex: Female, Male
Female
41 Participants
n=5 Participants
20 Participants
n=7 Participants
61 Participants
n=5 Participants
Sex: Female, Male
Male
57 Participants
n=5 Participants
28 Participants
n=7 Participants
85 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants
n=5 Participants
3 Participants
n=7 Participants
8 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
75 Participants
n=5 Participants
31 Participants
n=7 Participants
106 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
18 Participants
n=5 Participants
14 Participants
n=7 Participants
32 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
16 Participants
n=5 Participants
8 Participants
n=7 Participants
24 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
3 Participants
n=5 Participants
2 Participants
n=7 Participants
5 Participants
n=5 Participants
Race (NIH/OMB)
White
65 Participants
n=5 Participants
28 Participants
n=7 Participants
93 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
2 Participants
n=5 Participants
4 Participants
n=7 Participants
6 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
12 Participants
n=5 Participants
6 Participants
n=7 Participants
18 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 12 months

The percentage of subjects in the ITT population who achieve desensitization as determined by tolerating specified challenge doses of peanut protein with no more than mild allergy symptoms during the exit double-blind placebo-controlled food challenge (DBPCFC).

Outcome measures

Outcome measures
Measure
AR101
n=98 Participants
AR101 drug product was supplied in 2 presentations. These were pull-apart capsules containing 0.5, 1, 10, 20 and 100mg of peanut protein and sealed, foil-laminated sachets containing 300mg of peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Placebo
n=48 Participants
A Placebo matching the AR101 drug product was supplied in 2 presentations. These were pull-apart capsules matching the 0.5, 1, 10, 20 and 100mg peanut capsules but containing no peanut protein, and sealed, foil-laminated sachets matching the peanut protein sachets but without any peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Percentage of Subjects Who Tolerated a Single Highest Dose of at Least 600 mg in the Exit Double-Blind, Placebo-Controlled Food Challenge (DBPCFC)
73.5 Percentage of subjects
Interval 63.6 to 81.9
6.3 Percentage of subjects
Interval 1.3 to 17.2

SECONDARY outcome

Timeframe: 12 months

The percentage of subjects in the ITT population who achieve desensitization as determined by tolerating specified challenge doses of peanut protein with no more than mild allergy symptoms during the exit double-blind placebo-controlled food challenge (DBPCFC).

Outcome measures

Outcome measures
Measure
AR101
n=98 Participants
AR101 drug product was supplied in 2 presentations. These were pull-apart capsules containing 0.5, 1, 10, 20 and 100mg of peanut protein and sealed, foil-laminated sachets containing 300mg of peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Placebo
n=46 Participants
A Placebo matching the AR101 drug product was supplied in 2 presentations. These were pull-apart capsules matching the 0.5, 1, 10, 20 and 100mg peanut capsules but containing no peanut protein, and sealed, foil-laminated sachets matching the peanut protein sachets but without any peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Percentage of Subjects Who Tolerated a Single Highest Dose of at Least 1000 mg in the Exit Double-Blind, Placebo-Controlled Food Challenge (DBPCFC) [Time Frame: 12 Months]
68.4 Percent of participants
Interval 58.2 to 77.4
4.2 Percent of participants
Interval 0.5 to 14.3

SECONDARY outcome

Timeframe: 12 months

The percentage of subjects in the ITT population who achieve desensitization as determined by tolerating specified challenge doses of peanut protein with no more than mild allergy symptoms during the exit double-blind placebo-controlled food challenge (DBPCFC).

Outcome measures

Outcome measures
Measure
AR101
n=98 Participants
AR101 drug product was supplied in 2 presentations. These were pull-apart capsules containing 0.5, 1, 10, 20 and 100mg of peanut protein and sealed, foil-laminated sachets containing 300mg of peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Placebo
n=48 Participants
A Placebo matching the AR101 drug product was supplied in 2 presentations. These were pull-apart capsules matching the 0.5, 1, 10, 20 and 100mg peanut capsules but containing no peanut protein, and sealed, foil-laminated sachets matching the peanut protein sachets but without any peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Percentage of Subjects Who Tolerated a Single Highest Dose of at Least 300 mg in the Exit Double-Blind, Placebo-Controlled Food Challenge (DBPCFC)
79.6 Percentage of subjects
Interval 70.3 to 87.1
22.9 Percentage of subjects
Interval 12.0 to 37.3

SECONDARY outcome

Timeframe: 12 months

The maximum severity of symptoms that occurred at any challenge dose of peanut protein during the exit DBPCFC.

Outcome measures

Outcome measures
Measure
AR101
n=98 Participants
AR101 drug product was supplied in 2 presentations. These were pull-apart capsules containing 0.5, 1, 10, 20 and 100mg of peanut protein and sealed, foil-laminated sachets containing 300mg of peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Placebo
n=48 Participants
A Placebo matching the AR101 drug product was supplied in 2 presentations. These were pull-apart capsules matching the 0.5, 1, 10, 20 and 100mg peanut capsules but containing no peanut protein, and sealed, foil-laminated sachets matching the peanut protein sachets but without any peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Maximum Severity of Symptoms in Participants at Any Challenge Dose During the Exit Double-blind Placebo Controlled Food Challenge (DBPCFC)
None
50 Participants
2 Participants
Maximum Severity of Symptoms in Participants at Any Challenge Dose During the Exit Double-blind Placebo Controlled Food Challenge (DBPCFC)
Mild
29 Participants
23 Participants
Maximum Severity of Symptoms in Participants at Any Challenge Dose During the Exit Double-blind Placebo Controlled Food Challenge (DBPCFC)
Moderate
17 Participants
21 Participants
Maximum Severity of Symptoms in Participants at Any Challenge Dose During the Exit Double-blind Placebo Controlled Food Challenge (DBPCFC)
Severe
2 Participants
2 Participants
Maximum Severity of Symptoms in Participants at Any Challenge Dose During the Exit Double-blind Placebo Controlled Food Challenge (DBPCFC)
Life-threatening or fatal
0 Participants
0 Participants

Adverse Events

AR101

Serious events: 7 serious events
Other events: 96 other events
Deaths: 0 deaths

Placebo

Serious events: 2 serious events
Other events: 47 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
AR101
n=98 participants at risk
AR101 drug product was supplied in 2 presentations. These were pull-apart capsules containing 0.5, 1, 10, 20 and 100mg of peanut protein and sealed, foil-laminated sachets containing 300mg of peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Placebo
n=48 participants at risk
A Placebo matching the AR101 drug product was supplied in 2 presentations. These were pull-apart capsules matching the 0.5, 1, 10, 20 and 100mg peanut capsules but containing no peanut protein, and sealed, foil-laminated sachets matching the peanut protein sachets but without any peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Infections and infestations
Enterovirus infection
1.0%
1/98 • 12 months
0.00%
0/48 • 12 months
Infections and infestations
Influenza
1.0%
1/98 • 12 months
0.00%
0/48 • 12 months
Infections and infestations
Respiratory syncytial virus bronchiolitis
1.0%
1/98 • 12 months
0.00%
0/48 • 12 months
Infections and infestations
Viral infection
1.0%
1/98 • 12 months
0.00%
0/48 • 12 months
Respiratory, thoracic and mediastinal disorders
Asthma
2.0%
2/98 • 12 months
2.1%
1/48 • 12 months
Infections and infestations
Status asthmaticus
1.0%
1/98 • 12 months
0.00%
0/48 • 12 months
Injury, poisoning and procedural complications
Carbon monoxide poisoning
0.00%
0/98 • 12 months
2.1%
1/48 • 12 months

Other adverse events

Other adverse events
Measure
AR101
n=98 participants at risk
AR101 drug product was supplied in 2 presentations. These were pull-apart capsules containing 0.5, 1, 10, 20 and 100mg of peanut protein and sealed, foil-laminated sachets containing 300mg of peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Placebo
n=48 participants at risk
A Placebo matching the AR101 drug product was supplied in 2 presentations. These were pull-apart capsules matching the 0.5, 1, 10, 20 and 100mg peanut capsules but containing no peanut protein, and sealed, foil-laminated sachets matching the peanut protein sachets but without any peanut protein. Contents were delivered over an age-appropriate semisolid, vehicle food and mixed thoroughly. The capsules were used during the Initial Escalation and Up-dosing phases of the study. The sachets were used during the Maintenance phase.
Gastrointestinal disorders
Vomiting
53.1%
52/98 • 12 months
31.2%
15/48 • 12 months
Gastrointestinal disorders
Diarrhoea
34.7%
34/98 • 12 months
27.1%
13/48 • 12 months
Gastrointestinal disorders
Abdominal pain
23.5%
23/98 • 12 months
12.5%
6/48 • 12 months
Gastrointestinal disorders
Abdominal pain upper
14.3%
14/98 • 12 months
8.3%
4/48 • 12 months
Gastrointestinal disorders
Constipation
11.2%
11/98 • 12 months
10.4%
5/48 • 12 months
Gastrointestinal disorders
Oral pruritus
10.2%
10/98 • 12 months
4.2%
2/48 • 12 months
Gastrointestinal disorders
Teething
10.2%
10/98 • 12 months
14.6%
7/48 • 12 months
Gastrointestinal disorders
Flatulence
5.1%
5/98 • 12 months
0.00%
0/48 • 12 months
Gastrointestinal disorders
Lip swelling
5.1%
5/98 • 12 months
0.00%
0/48 • 12 months
Gastrointestinal disorders
Nausea
5.1%
5/98 • 12 months
4.2%
2/48 • 12 months
Infections and infestations
Upper respiratory tract infection
35.7%
35/98 • 12 months
27.1%
13/48 • 12 months
Infections and infestations
Nasopharyngitis
28.6%
28/98 • 12 months
27.1%
13/48 • 12 months
Infections and infestations
Rhinitis
20.4%
20/98 • 12 months
16.7%
8/48 • 12 months
Infections and infestations
Ear infection
11.2%
11/98 • 12 months
4.2%
2/48 • 12 months
Infections and infestations
Gastroenteritis
10.2%
10/98 • 12 months
12.5%
6/48 • 12 months
Infections and infestations
Viral infection
9.2%
9/98 • 12 months
10.4%
5/48 • 12 months
Infections and infestations
Viral upper respiratory tract infection
9.2%
9/98 • 12 months
10.4%
5/48 • 12 months
Infections and infestations
Gastroenteritis viral
8.2%
8/98 • 12 months
2.1%
1/48 • 12 months
Infections and infestations
Conjunctivitis
6.1%
6/98 • 12 months
10.4%
5/48 • 12 months
Infections and infestations
Corona virus infection
6.1%
6/98 • 12 months
12.5%
6/48 • 12 months
Infections and infestations
Hand-foot-and-mouth disease
5.1%
5/98 • 12 months
4.2%
2/48 • 12 months
Infections and infestations
Influenza
5.1%
5/98 • 12 months
0.00%
0/48 • 12 months
Infections and infestations
Lower respiratory tract infection
5.1%
5/98 • 12 months
0.00%
0/48 • 12 months
Infections and infestations
Urinary tract infection
5.1%
5/98 • 12 months
0.00%
0/48 • 12 months
Skin and subcutaneous tissue disorders
Urticaria
52.0%
51/98 • 12 months
50.0%
24/48 • 12 months
Skin and subcutaneous tissue disorders
Erythema
34.7%
34/98 • 12 months
35.4%
17/48 • 12 months
Skin and subcutaneous tissue disorders
Pruritus
27.6%
27/98 • 12 months
31.2%
15/48 • 12 months
Skin and subcutaneous tissue disorders
Eczema
24.5%
24/98 • 12 months
25.0%
12/48 • 12 months
Skin and subcutaneous tissue disorders
Rash
23.5%
23/98 • 12 months
22.9%
11/48 • 12 months
Skin and subcutaneous tissue disorders
Perioral dermatitis
17.3%
17/98 • 12 months
8.3%
4/48 • 12 months
Skin and subcutaneous tissue disorders
Dry skin
8.2%
8/98 • 12 months
4.2%
2/48 • 12 months
Skin and subcutaneous tissue disorders
Rash erythematous
8.2%
8/98 • 12 months
6.2%
3/48 • 12 months
Skin and subcutaneous tissue disorders
Dermatitis atopic
6.1%
6/98 • 12 months
10.4%
5/48 • 12 months
Skin and subcutaneous tissue disorders
Swelling face
5.1%
5/98 • 12 months
2.1%
1/48 • 12 months
Respiratory, thoracic and mediastinal disorders
Cough
53.1%
52/98 • 12 months
43.8%
21/48 • 12 months
Respiratory, thoracic and mediastinal disorders
Rhinorrhoea
42.9%
42/98 • 12 months
31.2%
15/48 • 12 months
Respiratory, thoracic and mediastinal disorders
Sneezing
23.5%
23/98 • 12 months
18.8%
9/48 • 12 months
Respiratory, thoracic and mediastinal disorders
Nasal congestion
14.3%
14/98 • 12 months
10.4%
5/48 • 12 months
Respiratory, thoracic and mediastinal disorders
Wheezing
14.3%
14/98 • 12 months
8.3%
4/48 • 12 months
Respiratory, thoracic and mediastinal disorders
Asthma
11.2%
11/98 • 12 months
14.6%
7/48 • 12 months
Respiratory, thoracic and mediastinal disorders
Throat irritation
8.2%
8/98 • 12 months
4.2%
2/48 • 12 months
Respiratory, thoracic and mediastinal disorders
Dysphonia
5.1%
5/98 • 12 months
2.1%
1/48 • 12 months
Respiratory, thoracic and mediastinal disorders
Rhinitis allergic
5.1%
5/98 • 12 months
2.1%
1/48 • 12 months
General disorders
Pyrexia
51.0%
50/98 • 12 months
41.7%
20/48 • 12 months
Injury, poisoning and procedural complications
Arthropod bite
7.1%
7/98 • 12 months
4.2%
2/48 • 12 months
Injury, poisoning and procedural complications
Head injury
6.1%
6/98 • 12 months
2.1%
1/48 • 12 months
Injury, poisoning and procedural complications
Contusion
5.1%
5/98 • 12 months
0.00%
0/48 • 12 months
Eye disorders
Eye pruritus
9.2%
9/98 • 12 months
10.4%
5/48 • 12 months
Eye disorders
Eye swelling
9.2%
9/98 • 12 months
6.2%
3/48 • 12 months
Eye disorders
Ocular hyperaemia
6.1%
6/98 • 12 months
4.2%
2/48 • 12 months
Immune system disorders
Anaphylactic reaction
8.2%
8/98 • 12 months
8.3%
4/48 • 12 months
Immune system disorders
Seasonal allergy
4.1%
4/98 • 12 months
8.3%
4/48 • 12 months
Nervous system disorders
Headache
10.2%
10/98 • 12 months
2.1%
1/48 • 12 months
Psychiatric disorders
Irritability
6.1%
6/98 • 12 months
2.1%
1/48 • 12 months
Ear and labyrinth disorders
Ear pain
5.1%
5/98 • 12 months
6.2%
3/48 • 12 months
Metabolism and nutrition disorders
Decreased appetite
5.1%
5/98 • 12 months
0.00%
0/48 • 12 months

Additional Information

Director of Regulatory Affairs

Aimmune Therapeutics, Inc.

Phone: 650-409-5164

Results disclosure agreements

  • Principal investigator is a sponsor employee * Institutions cannot publish until the multi-center sponsor publication is published * Or, institutions cannot publish until 18 months after study completion * And Sponsor review of any publications is required prior to any institution publications according to contractual agreements
  • Publication restrictions are in place

Restriction type: OTHER