Omalizumab Weight-Based Dosing Efficacy Trial (OWED-T)

Mass General Brigham

Status and phase: Not yet enrolling; Phase 2

Conditions: Food Allergy; Allergies

Treatments: Drug: 15mg/kg omalizumab injection; Drug: 5mg/kg omalizumab injection

Study type: Interventional

Funder types: Other

Identifiers

NCT06943534

2025P000538

Details and patient eligibility

About

This research is being conducted to assess the safety and effectiveness of increased dosing of Omalizumab for food allergies.

Full description

This research is being conducted to assess the safety and effectiveness of omalizumab for food allergies dosed differently from what is currently FDA approved. The study hypothesizes the current way of dosing omalizumab may not work well for all patients with food allergy and it unnecessarily excludes some individuals with very high allergic antibody (IgE) who may benefit. This study will include subjects regardless of IgE level. One of the goals is to learn more about how safe and effective Omalizumab is for people with these high IgE levels, since this has not been fully studied before.

Enrollment: 30 estimated patients

Sex: All

Ages: 1 to 55 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• A positive prick skin test (PST) with a wheal ≥ 6 mm to at least two of the relevant foods (peanut, cashew, walnut, egg, or milk)
• Positive food specific IgE (≥2.0 kUA/L) to at least two of the relevant foods
• A positive history of clinical reaction to at least one of the qualifying foods other than the challenge-qualifying food

(If meeting above criteria):

• Positive oral food challenge (OFC) to one of the potentially qualifying foods at a cumulative dose of ≤144 mg (maximum tolerated dose ≤30 mg)

Exclusion criteria

• Weight >80 kg at time of screening
• Clinically significant laboratory abnormalities at screening.
• Sensitivity or suspected/known allergy to any ingredients (including excipients) of omalizumab.
• Poorly controlled or severe asthma/wheezing at screening
• History of severe anaphylaxis to participant-specific foods that will be used in this study, defined as neurological compromise, PICU admission f for continuous epinephrine for hypotension or severe respiratory compromise requiring intubation.
• Treatment with a burst of oral, intramuscular (IM), or intravenous (IV) steroids of more than two days for an indication other than asthma/wheezing within 30 days of screening.
• Currently receiving oral, IM, or IV corticosteroids, tricyclic antidepressants, or β-blockers.
• Past or current history of eosinophilic gastrointestinal disease within three years of screening.
• Past or current history of cancer, or currently being investigated for possible cancer.
• Past or current history of any food immunotherapy (e.g., OIT, SLIT, EPIT) within 6 months of screening.
• Treatment with monoclonal antibody therapy, or other immunomodulatory therapy within 6 months of screening.
• Inability to discontinue antihistamines for minimum wash-out periods required for SPTs or OFCs.
• Pregnant or breastfeeding or intending to become pregnant during the study.
• Evidence of clinically significant chronic disease.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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30 participants in 2 patient groups

Patients Receiving 5mg/kg of omalizumab

Active Comparator group

Description:

Participants randomized to this arm will receive a does of 5mg/kg Omalizumab per month divided every two (2) weeks for 16 weeks.

Treatment:

Drug: 5mg/kg omalizumab injection

Patients Receiving 15mg/kg of omalizumab

Active Comparator group

Description:

Participants randomized to this arm will receive a does of 15mg/kg Omalizumab per month divided every two (2) weeks for 16 weeks.

Treatment:

Drug: 15mg/kg omalizumab injection