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A Study of Xolair in Peanut-Allergic Subjects Previously Enrolled in Study Q2788g

A Phase IIb, Open-Label Study of Xolair (Omalizumab) in Peanut-Allergic Subjects Randomized to Study Drug in Study Q2788g (TOPS)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00382148
Enrollment
11
Registered
2006-09-28
Start date
2006-11-01
Completion date
2008-06-28
Last updated
2026-06-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Peanut Hypersensitivity

Keywords

TOPS, Peanut allergy, Peanut-induced allergy, Allergy

Brief summary

This is a Phase IIb, multicenter, open-label study available to active (Xolair) and control (placebo) subjects who have completed their final visit (or early termination visit, if applicable) for Study Q2788g, who meet the eligibility criteria of this study, and who provide consent to participate in this study.

Interventions

DRUGomalizumab

Subcutaneous repeating dose

Sponsors

Genentech, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Completion of last visit (or early termination visit, if applicable) for Study Q2788g * Signed Informed Consent Form * Use of an effective method of contraception for females of childbearing potential * Body weight ≥ 20 kg and ≤ 150 kg * IgE level ≤ 1300 IU/mL (Note: Subjects with an IgE \< 30 IU/mL will be dosed at the lowest level on the dosing table \[30 IU/mL\], thus enabling better understanding of the role of Xolair in peanut allergic subjects who have low total IgE levels.)

Exclusion criteria

* Withdrawal from Study Q2788g prior to study closure or the final study visit (Week 36) * Current participation in another investigational study * Pregnancy or lactation * History of brittle asthma * Aspirin-sensitive asthma * Known hypersensitivity to any ingredients of Xolair, including its excipients (sucrose, histidine, polysorbate 20) * Have a polymorrphonuclear count \<1500/uL * Use of anti-coagulants, such as warfarin (Coumadin(R)), thrombolytic enzymes, or ticlopidine * Current diagnosis of cancer, current investigation for possible cancer, or history of cancer (not including non-melanoma skin cancer) * Thrombocytopenia as evidenced by a platelet count \< 100,000/uL * Any systemic condition requiring regular administration of an immunoglobulin

Design outcomes

Primary

MeasureTime frameDescription
Serious Adverse EventsThrough Week 52All grades according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), v3.0. An SAE is defined as an adverse event that results in death, is life threatening, requires hospitalization, results in significant disability, results in birth defect, or is considered a significant medical event by the investigator

Secondary

MeasureTime frameDescription
Food Allergen Exposure, Assessed on Patient-reported QuestionnaireEvery 4 weeks through Week 52Participants were asked to record every 4 weeks in the food-related allergic event questionnaire: "Whether you were exposed to peanut, tree nut (cashew, almond, etc.), shellfish (shrimp, crab, etc.), eggs, milk, or other (please specify)" and "Did you have a reaction? (Yes/No)."
Food-allergic Reactions As Assessed by the Ewan ScaleThrough Week 52The Ewan scale has five ascending grades of severity from "Grade 1" to "Grade 5" (as well, there is a possible value of "Not Applicable"). Grade 1 criteria: localized cutaneous erythema/urticaria/angioedema/oral pruritus. Grade 2 criteria: generalized erythema/urticaria/angioedema. Grade 3 criteria: Grade 1 or 2 events plus GI symptoms/rhinoconjunctivitis. Grade 4 criteria: mild laryngeal edema (voice change, tight throat) and/or mild asthma. Grade 5 criteria: pronounced dyspnea and/or hypotensive symptoms (light headedness/collapse/loss of consciousness). Following a report of an allergic reaction to food on a patient-reported questionnaire, the reaction is graded by the study coordinator or Principle Investigator.
Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsThrough Week 52All grades according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), v3.0. All AEs that do not meet any of the criteria for serious should be regarded as nonserious AEs.

Contacts

STUDY_DIRECTORDennis Wong, M.D.

Genentech, Inc.

Participant flow

Participants by arm

ArmCount
Omalizumab (Placebo in Q2788g)
Either a minimum of 0.016 mg/kg/IgE (IU/mL) every 4 weeks or 0.008 mg/kg/IgE (IU/mL) every 2 weeks (based on dosing table)
4
Omalizumab (Omalizumab in Q2788g)
Either a minimum of 0.016 mg/kg/IgE (IU/mL) every 4 weeks or 0.008 mg/kg/IgE (IU/mL) every 2 weeks (based on dosing table)
7
Total11

Baseline characteristics

CharacteristicOmalizumab (Placebo in Q2788g)Omalizumab (Omalizumab in Q2788g)Total
Age, Continuous32.0 years
STANDARD_DEVIATION 23.5
17.3 years
STANDARD_DEVIATION 8.9
22.6 years
STANDARD_DEVIATION 16.4
Age, Customized
>= 12 Years
4 participants5 participants9 participants
Age, Customized
6 to < 12 Years
0 participants2 participants2 participants
Sex: Female, Male
Female
2 Participants2 Participants4 Participants
Sex: Female, Male
Male
2 Participants5 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
other
Total, other adverse events
3 / 46 / 7
serious
Total, serious adverse events
0 / 41 / 7

Outcome results

Primary

Serious Adverse Events

All grades according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), v3.0. An SAE is defined as an adverse event that results in death, is life threatening, requires hospitalization, results in significant disability, results in birth defect, or is considered a significant medical event by the investigator

Time frame: Through Week 52

Population: Safety-analysis population

ArmMeasureGroupValue (NUMBER)
Omalizumab (Placebo in Q2788g)Serious Adverse EventsOverdose0 participants
Omalizumab (Placebo in Q2788g)Serious Adverse EventsDepression0 participants
Omalizumab (Omalizumab in Q2788g)Serious Adverse EventsOverdose1 participants
Omalizumab (Omalizumab in Q2788g)Serious Adverse EventsDepression1 participants
Secondary

Food Allergen Exposure, Assessed on Patient-reported Questionnaire

Participants were asked to record every 4 weeks in the food-related allergic event questionnaire: Whether you were exposed to peanut, tree nut (cashew, almond, etc.), shellfish (shrimp, crab, etc.), eggs, milk, or other (please specify) and Did you have a reaction? (Yes/No).

Time frame: Every 4 weeks through Week 52

ArmMeasureGroupValue (NUMBER)
Omalizumab (Placebo in Q2788g)Food Allergen Exposure, Assessed on Patient-reported QuestionnairePeanut1 participants
Omalizumab (Omalizumab in Q2788g)Food Allergen Exposure, Assessed on Patient-reported QuestionnairePeanut3 participants
Secondary

Food-allergic Reactions As Assessed by the Ewan Scale

The Ewan scale has five ascending grades of severity from Grade 1 to Grade 5 (as well, there is a possible value of Not Applicable). Following a report of an allergic reaction to food on a patient-reported questionnaire, the reaction is graded by the study coordinator or Principle Investigator

Time frame: Through Week 52

Population: safety-evaluable population

ArmMeasureGroupValue (NUMBER)
Omalizumab (Placebo in Q2788g)Food-allergic Reactions As Assessed by the Ewan ScaleGrade 20 participants
Omalizumab (Placebo in Q2788g)Food-allergic Reactions As Assessed by the Ewan ScaleGrade 40 participants
Omalizumab (Placebo in Q2788g)Food-allergic Reactions As Assessed by the Ewan ScaleGrade 31 participants
Omalizumab (Placebo in Q2788g)Food-allergic Reactions As Assessed by the Ewan ScaleGrade 50 participants
Omalizumab (Placebo in Q2788g)Food-allergic Reactions As Assessed by the Ewan ScaleGrade 10 participants
Omalizumab (Omalizumab in Q2788g)Food-allergic Reactions As Assessed by the Ewan ScaleGrade 50 participants
Omalizumab (Omalizumab in Q2788g)Food-allergic Reactions As Assessed by the Ewan ScaleGrade 11 participants
Omalizumab (Omalizumab in Q2788g)Food-allergic Reactions As Assessed by the Ewan ScaleGrade 20 participants
Omalizumab (Omalizumab in Q2788g)Food-allergic Reactions As Assessed by the Ewan ScaleGrade 32 participants
Omalizumab (Omalizumab in Q2788g)Food-allergic Reactions As Assessed by the Ewan ScaleGrade 40 participants
Secondary

Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEs

All grades according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), v3.0. All AEs that do not meet any of the criteria for serious should be regarded as nonserious AEs.

Time frame: Through Week 52

Population: safety-evaluable population

ArmMeasureGroupValue (NUMBER)
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsLymphadenopathy0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsMotion Sickness0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsTinnitus0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsDiarrhoea0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsAbdominal Pain0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsNausea0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsVomiting0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsLip Swelling0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsOral Pruritis0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsPyrexia0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsInjection Site Bruising1 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsFatigue0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsNasopharyngitis0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsLaryngitis0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsSinusitis0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsUpper Respiratory Tract Infection1 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsPharyngitis Streptococcal1 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsGastroenteritis0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsOtitis Media0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsLocalised Infection0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsAnorexia0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsArthralgia1 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsLoss of Consciousness0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsHeadache0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsMigraine0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsDizziness0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsHypoaesthesia0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsMenstruation Irregular1 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsCough0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsNasal Congestion0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsRhinitis Allergic1 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsAsthma0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsPharyngolaryngeal Pain0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsRhinorrhoea0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsThroat Irritation0 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsEczema1 participants
Omalizumab (Placebo in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsRash0 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsOtitis Media1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsLymphadenopathy1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsPharyngolaryngeal Pain2 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsMotion Sickness1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsLocalised Infection1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsTinnitus1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsCough3 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsDiarrhoea2 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsAnorexia1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsAbdominal Pain2 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsRash1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsNausea2 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsArthralgia0 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsVomiting1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsNasal Congestion2 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsLip Swelling1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsLoss of Consciousness1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsOral Pruritis1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsRhinorrhoea1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsPyrexia2 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsHeadache1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsInjection Site Bruising1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsRhinitis Allergic0 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsFatigue1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsMigraine1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsNasopharyngitis2 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsEczema1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsLaryngitis1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsDizziness1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsSinusitis1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsAsthma2 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsUpper Respiratory Tract Infection0 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsHypoaesthesia1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsPharyngitis Streptococcal1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsThroat Irritation1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsGastroenteritis1 participants
Omalizumab (Omalizumab in Q2788g)Nonserious Food-related Adverse Events (AEs) and Other Nonserious AEsMenstruation Irregular0 participants

Source: ClinicalTrials.gov · Data processed: Jun 3, 2026