A Study to Assess Primarily the Tolerability and Safety of SAR439794 After Repeated Sublingual Daily Administration in Peanut Allergic Adult and Adolescent Patients



Status:Active, not recruiting
Conditions:Allergy, Allergy, Food Studies
Therapuetic Areas:Otolaryngology, Pharmacology / Toxicology
Healthy:No
Age Range:12 - 55
Updated:3/27/2019
Start Date:May 7, 2018
End Date:March 30, 2020

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A Randomized, Multicenter, 3-arm, Double-blind, Placebo-controlled Study to Assess the Safety, Tolerability and Pharmacodynamics of Repeated Sublingual Daily Administration of SAR439794 in Peanut Allergic Adult and Adolescent Patients

Primary Objective:

To assess tolerability and safety of SAR439794 [peanut extract (PE) sublingual immunotherapy
(SLIT) adjuvanted with Glucopyranosyl Lipid A (GLA)] after repeated sublingual (SL) daily
administration in peanut allergic adult and adolescent patients.

Secondary Objective:

To assess pharmacodynamics of SAR439794 after repeated SL daily administration in peanut
allergic adult and adolescent patients.

The total study duration per participant is approximately from 15 to 18 weeks (core study)
from screening until end-of-study visit, and 2 phone calls at Week 26 and Week 52 after the
last Investigational Medicinal Product (IMP) dose.

Inclusion criteria :

- Male or female patients, between 18 and 55 years of age, inclusive and adolescents
between 12 and 17 years of age (after enrollment of 20 adult patients completed the 6
weeks dose escalation period and the safety and tolerability is deemed acceptable).

- Physician-diagnosed peanut allergy OR convincing history of objective clinical
symptoms consistent with immediate hypersensitivity within 4 hours following known
ingestion of peanuts or peanut-containing food AND by the following combined criteria:

- Peanut-specific IgE (P-sIgE) >5 kUA/L and Arah2-specific IgE (Arah2-sIgE) >2 kUA/L,

- Skin Prick Test (SPT) to peanut allergen ≥5 mm compared to saline control.

- High-sensitivity C reactive protein (hs-CRP), fibrinogen and neutrophil count within
laboratory normal range unless the Investigator considers an abnormality to be
clinically irrelevant.

- Ability to perform spirometry based on the American Thoracic Society guidelines.

- Patient must be trained on the proper use of an injectable epinephrine device and
should be able to use it.

Exclusion criteria:

- Any history or presence of autoimmune, cardiovascular disease, chronic lung disease,
malignancy, psychiatric illness, or gastrointestinal inflammatory conditions,
including celiac disease, inflammatory bowel disease and eosinophilic gastrointestinal
disorders.

- History of severe anaphylaxis, documented hypotension, neurological compromise
(confusion, loss of consciousness), or incontinence known or suspected to be caused by
ingestion of peanut or that required treatment with 2 or more administrations of
epinephrine or hospitalization.

- Daily oral steroid use for >1 month during the past year, burst oral steroid course in
the past 6 months, or >1 burst oral steroid course in the past year.

- Asthma requiring >1 hospitalization in the past year or >1 emergency department visit
in the past 6 months.

- Severe or poorly controlled atopic dermatitis.

- Diagnosis of eosinophilic esophagitis.

- Diagnosis of other severe or complicating medical problems.

- Primary immune deficiency.

- If female, pregnancy (defined as positive β-HCG [human chorionic gonadotropin] blood
test), breastfeeding.

- If female of childbearing potential, unable to use an effective method of
contraception to prevent pregnancy and agree to continue to practice an acceptable
method of contraception for the duration of their participation in the study.

- Use of beta blockers, angiotensin converting enzyme inhibitors, angiotensin receptor
blockers, or monoamine oxidase inhibitors.

- Any patient who, in the judgment of the Investigator, is likely to be noncompliant
during the study, or unable to cooperate because of a language problem or poor mental
development.

- Any patient who cannot be contacted in case of emergency.

- Any patient who is the Investigator or any subinvestigator, research assistant,
pharmacist, study coordinator, or other staff thereof, directly involved in conducting
the study.

- Positive result on any of the following tests: hepatitis B surface (HBs Ag) antigen,
anti-hepatitis B virus core antibodies (anti-HBc Ab), anti-hepatitis C virus
antibodies (anti-HCV Ab), anti-human immunodeficiency Virus 1 and 2 antibodies
(anti-HIV1 and anti- HIV2 Ab).

- Presence of sublingual epithelium and oral mucosa wound or infection (abcess, ulcer,
candidiasis, gingivitis, etc.) or painful tooth decay.

- Participation in any food immunotherapy interventional study within the past 6 months.

- Patients who had received any monophosphoryl lipid (MPL)- or glucopyranosyl lipid A
(GLA)-containing products within the last 6 months.

- Patients who experienced a Grade 3 or higher treatment emergent adverse event
following administration of a MPL- or GLA-containing product.

- Use within the past 6 months of systemic immunomodulatory treatment and biologics with
an immune target, including Xolair®.

The above information is not intended to contain all considerations relevant to a patient's
potential participation in a clinical trial.
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