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A Phase 1 Study of Cizutamig in IgE Mediated Diseases

A Phase 1b, Open-Label Study Evaluating the Pharmacodynamics, Safety, Tolerability, Pharmacokinetics, and Immunogenicity of Cizutamig in IgE Mediated Diseases

Status
Withdrawn
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07408869
Enrollment
0
Registered
2026-02-13
Start date
2026-04-01
Completion date
2026-12-01
Last updated
2026-07-22

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

Conditions

IgE-Mediated Cow Milk Allergy, IgE Mediated Food Allergy, IgE-Mediated Hypersensitivity

Keywords

peanut allergy, nut allergy, hazelnut allergy, walnut allergy, cashew allergy, milk allergy, egg allergy, soy allergy, wheat allergy, sesame allergy, cod allergy, salmon allergy, tuna allergy, lobster allergy, crab allergy, shrimp allergy, food allergy, rhinosinusitis, allergic rhinitis, asthma, urticaria, atopic dermatitis, immune system, cizutamig, T cell engager

Brief summary

The purpose of this study is to evaluate the pharmacodynamics, safety, tolerability, pharmacokinetics, and immunogenicity of cizutamig in IgE Mediated Diseases.

Detailed description

This is a Phase 1b, open-label study evaluating the pharmacodynamics, safety, tolerability, pharmacokinetics, and immunogenicity of cizutamig in IgE Mediated Diseases.

Interventions

BIOLOGICALCizutamig

cizutamig will be dosed SC according to the assigned cohort

Sponsors

Candid Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. Patient meets at least one of the following: 1. History of documented (skin prick test, in vitro testing, or food challenge), ongoing, IgE-mediated allergy to food (eg, peanut, hazelnut, walnut, cashew, milk, egg/egg white, soy, wheat, sesame, cod, salmon, tuna, lobster, crab and/or shrimp) with Screening total IgE ≥ 400 IU/mL 2. Diagnosis of chronic rhinosinusitis with Screening total IgE \> ULN 3. Diagnosis of allergic rhinitis with Screening total IgE \> ULN 4. Diagnosis of asthma and classified as well controlled per 2024 Global Initiative for Asthma guidelines with Screening total IgE \> ULN 5. Diagnosis of chronic spontaneous urticaria with symptoms (eg, wheals or angioedema) for at least 6 weeks any time prior to screening and Screening total IgE \> ULN 6. Diagnosis of atopic dermatitis that has been present for at least 6 months before the screening visit and with Screening total IgE \> ULN 2. Agree to the use of highly effective contraception

Exclusion criteria

1. Elevated IgE levels for reasons other than the IgE mediated diseases 2. Planned ingestion of food items to which they are allergic for the duration of the study (for food allergy patients) 3. Current use of any allergen immunotherapy. 4. Individuals whose allergen exposures in their home and/or work environments may be expected to change significantly during the trial period 5. Inadequate clinical laboratory parameters at Screening 6. Receipt of or inability to discontinue any excluded therapies 7. Individuals who will decline blood products 8. Active infection 9. Serious mental illness, drug or alcohol abuse, dementia, or other condition that impair ability to sign ICF 10. Individuals who are hypersensitive to intravenous immunoglobulin (IVIg) 11. History of primary immunodeficiency 12. History of CNS disease 13. History of poorly controlled diabetes, chronic kidney disease, chronic pulmonary disease, uncontrolled cardiovascular disease, history of malignancy within 5 years 14. History of severe allergic or anaphylactic reactions to mAb therapy (or recombination antibody-related fusion proteins) or any constituents of study drug 15. Major surgery requiring the use of general anesthesia within 12 weeks prior to Screening or planned or expected major surgery during the study period 16. Blood donation or significant blood loss within 30 days prior to screening 17. Individuals considered to be part of a vulnerable population (eg, incarceration) 18. Individuals that in the opinion of the Investigator, are not suitable for participation in the trial 19. Inability to comply with protocol-mandated requirements 20. A history of severe allergic or anaphylactic reactions related to the underlying IgE mediated disease

Design outcomes

Primary

MeasureTime frameDescription
To evaluate the ability of cizutamig to reduce IgE levelsBaseline to Week 12Change from baseline in serum IgE

Secondary

MeasureTime frameDescription
Incidence and severity of treatment-emergent adverse events through end of studyBaseline to Week 24
PK parameters: CmaxBaseline to 24 Weeks
PK parameters: TmaxBaseline to Week 24
PK parameters: AUCBaseline to 24 Weeks
PK Parameter: CLBaseline to 24 Weeks
PK Parameters: VdBaseline to 24 Weeks
PK Parameters: t1/2Baseline to 24 Weeks
Anti-drug antibodies (ADAs)Baseline to 24 Weeks
Changes in body temperatureBaseline to 24 Weeks
Changes to blood pressureBaseline to 24 Weekssystolic and diastolic
Changes in heart rateBaseline to 24 Weeks
Changes to respiratory rateBaseline to 24 Weeks
Changes to pulse oximetryBaseline to 24 Weeks
Changes in ECG parameters: QRS intervalBaseline to 24 Weeks
Changes in ECG parameters: PR intervalBaseline to 24 Weeks
Changes in ECG parameters: QTcBBaseline to 24 Weeks
Changes in ECG parameters: QTcFBaseline to 24 Weeks
Changes in ECG parameters: QT intervalBaseline to 24 Weeks
Changes in ECG parameters: RRBaseline to 24 Weeks
Changes from baseline in safety laboratory assessments through end of study: serum chemistryBaseline to 24 Weeks
Changes from baseline in Red Blood Cell countBaseline to 24 Weeks
Changes from baseline in White Blood Cell countBaseline to 24 Weeks
Changes from baseline in PlateletsBaseline to 24 Weeks
Changes from baseline in HematocritBaseline to 24 Weeks
Changes from baseline in HemoglobinBaseline to 24 Weeks
Frequency and percentage of anti-drug antibodies (ADAs)Baseline to 24 Weeks

Countries

Australia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 23, 2026