Purpose

This study is researching an experimental drug called linvoseltamab when combined with another drug called dupilumab. The study is focused on patients who have IgE-mediated food allergy. If the patient has an allergy, the immune system overreacts to an allergen (eg, certain foods such as peanuts, milk, shellfish) by producing antibodies called IgE. IgE antibodies are released by cells such as plasma cells. These antibodies and allergens bind to other cells that release chemicals, causing an allergic reaction. The aim of the study is to see how safe and tolerable linvoseltamab is when combined with dupilumab. The study is looking at several other research questions, including: - What side effects may happen from taking the study drugs - Whether linvoseltamab when combined with dupilumab has an effect on other types of antibodies in the blood at different times - How much study drug(s) is in the blood at different times

Condition

Eligibility

Eligible Ages
Between 18 Years and 50 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  1. Clinical history of documented, ongoing, severe IgE-mediated allergy to food (peanut, hazelnut, walnut, cashew, milk, egg/egg white, soy, wheat, sesame, cod, salmon, tuna, lobster, crab and/or shrimp; documented symptom[s] of anaphylaxis due to exposure) 2. History of physician reported anaphylaxis to food requiring epinephrine administration and/or requiring an emergency visit or inpatient hospitalization 3. Participants with dupilumab-indicated atopic dermatitis (AD) must be receiving DUPIXENT as standard of care for the treatment of AD for a minimum of 12 weeks prior to screening OR Participants with dupilumab-indicated eosinophilic esophagitis (EoE) must be receiving DUPIXENT as standard of care for the treatment of EoE for a minimum of 12 weeks prior to screening OR Must be willing to initiate dupilumab treatment for food allergy 4. Participants initiating dupilumab treatment must agree to remain on dupilumab for the duration of the study treatment period. Participants on commercial DUPIXENT must agree to remain on their prescribed dose, as described in the protocol, for the duration of the study treatment period 5. Participant must be willing to use an epinephrine auto-injector device 6. Participant must be willing to receive booster and/or re-vaccination(s), including for live (attenuated) vaccinations, based on results of vaccine antibody titers and investigator opinion 7. Has a body mass index between 18 and 32 kilogram per square metre (kg/m2), inclusive

Exclusion Criteria

  1. Pregnant or breastfeeding women 2. History of chronic disease (other than AD or EoE) requiring therapy (eg, heart disease, diabetes, hypertension) that, in the opinion of the principal investigator, would represent a risk to the participant's health or safety in this study or the participant's ability to comply with the study protocol. Participants on DUPIXENT for conditions other than AD or EoE (eg, asthma, chronic rhinosinusitis with nasal polyps, prurigo nodularis, etc) are excluded 3. Known or suspected progressive multifocal leukoencephalopathy (PML), or history of PML, neurodegenerative condition, central nervous system (CNS) movement disorder, or seizure within 12 months prior to Day 1 4. Recent history (within past 30 days) of a grade 3 or grade 4 gastrointestinal bleed, history of inflammatory bowel disease or severe diverticulitis or previous gastrointestinal perforation 5. History of moderate or severe asthma based on the Global Initiative for Asthma (GINA) guidelines 6. Pre-bronchodilator forced expiratory volume in the first second (FEV1) <80% of predicted using local reference values 7. Any prior exposure to a B-cell maturation antigen (BCMA) targeted therapy 8. Use of systemic corticosteroids within 2 months prior to screening 9. Use of other forms of allergen immunotherapy (eg, oral, SC, patch, or sublingual) or immunomodulatory therapy (not including corticosteroids) within 6 months prior to screening 10. Unwilling to discontinue use of antihistamines within 5 days prior to screening and within 5 days prior to skin prick test (SPT) 11. Hypersensitivity to epinephrine and any of the excipients in the epinephrine product 12. Within the previous 2 months of the screening visit has a history of bacterial, protozoal, viral or parasite infection requiring hospitalization or treatment with IV anti-infectives 13. Known history of human immunodeficiency virus (HIV) infection or HIV seropositivity at the screening visit NOTE: Other protocol-defined inclusion/exclusion criteria apply

Study Design

Phase
Phase 1
Study Type
Interventional
Allocation
N/A
Intervention Model
Sequential Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Severe IgE-mediated food allergy
  • Drug: linvoseltamab
    Administered by intravenous (IV) infusion
    Other names:
    • REGN5458
  • Drug: dupilumab
    Administered by subcutaneous (SC) injection
    Other names:
    • Dupixent®
    • REGN668

Recruiting Locations

Massachusetts General Hospital
Boston, Massachusetts 02114

More Details

Status
Recruiting
Sponsor
Regeneron Pharmaceuticals

Study Contact

Clinical Trials Administrator
844-734-6643
clinicaltrials@regeneron.com

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.