First-in-human Study of SAR443765 in Healthy Participants and in Asthmatic Participants

NCT ID: NCT05366764

Last Updated: 2025-09-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

36 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-06-08

Study Completion Date

2023-02-24

Brief Summary

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This is a 3-part, parallel group treatment, Phase 1, randomized, double-blind, placebo-controlled study to assess the safety, tolerability and pharmacokinetics after sequential single and multiple ascending doses of SAR443765 in healthy adult participants, and after a single dose of SAR443765 in participants with mild-to-moderate asthma.

Detailed Description

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The anticipated study duration per participant is up to 14 weeks

Conditions

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Asthma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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SAR443765

Single dose administration of SAR443765

Group Type EXPERIMENTAL

SAR443765

Intervention Type DRUG

solution for injection

Salbutamol or levosalbutamol

Intervention Type DRUG

metered dose inhaler

Placebo

Placebo to match SAR443765

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

solution for injection

Salbutamol or levosalbutamol

Intervention Type DRUG

metered dose inhaler

Interventions

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SAR443765

solution for injection

Intervention Type DRUG

Placebo

solution for injection

Intervention Type DRUG

Salbutamol or levosalbutamol

metered dose inhaler

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of asthma for at least 12 months and confirmed at screening based on the Global Initiative for Asthma (GINA) 2020 Guidelines
* Controlled asthma defined as no more than 1 canister of rescue inhaler per month over the last 3 months prior to baseline
* Elevated FeNO level defined as ≥25 ppb
* Participants, using as-needed SABA, ICS-naïve or with existing stable treatment (at least for 3 months prior to screening) with low to medium daily dose ICS (≤500 mcg of fluticasone propionate or comparable ICS daily dosage) potentially in combination with a LABA and/or LAMA as second controller, and/or with stable daily leukotriene receptor antagonist, leukotriene synthesis inhibitor and/or chromones
* Prebronchodilator forced expiratory volume in 1 second (FEV1) ≥60% of predicted normal
* Reversibility of at least 12% and 200 mL in FEV1 or forced vital capacity (FVC) after administration of 4 puffs (400 mcg) of albuterol/salbutamol or levalbuterol/levosalbutamol during screening or documented history of a reversibility test that meets this criteria within 5 years prior to screening or documented positive response to methacholine challenge (a decrease in FEV1 by 20% \[PC20\] of \<8 mg/mL) within 5 years prior to screening visit
* Body weight between 50.0 and 105.0 kg, inclusive, if male, and between 40.0 and 95.0 kg, inclusive, if female, body mass index between 18.0 and 32.0 kg/m2
* Male participants are eligible to participate if they use condom during study period
* A female participant is eligible to participate if she is not pregnant or breastfeeding, and one of the following conditions applies: Is a woman of non-childbearing potential (WONCBP) OR Is a woman of childbearing potential (WOCBP) and agrees to use a contraceptive method that is highly effective
* A WOCBP must have a negative highly sensitive pregnancy test within 36 hours before the first administration of study intervention

Exclusion Criteria

Participants are excluded from the study if any of the following criteria apply:

* Any clinically relevant abnormal findings in medical history, physical examination, vital signs, 12-lead ECG.
* Chronic lung disease, or another diagnosed pulmonary or systemic disease associated with elevated peripheral eosinophil counts.
* History of life-threatening asthma, asthma exacerbation or use of systemic steroid within 3 months prior to screening visit
* Worsening of asthma or respiratory infection within the last 6 weeks prior screening visit.
* Symptomatic postural hypotension,history or presence of drug or alcohol abuse, current smoker or previous smoker with a smoking history \>10 pack-years.
* Excessive consumption of beverages containing xanthine bases (more than 4 cups or glasses per day).
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Sanofi

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Clinical Sciences & Operations

Role: STUDY_DIRECTOR

Sanofi

Locations

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Investigational Site Number : 2760001

Berlin, , Germany

Site Status

Investigational Site Number : 8260001

Belfast, , United Kingdom

Site Status

Countries

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Germany United Kingdom

References

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Deiteren A, Krupka E, Bontinck L, Imberdis K, Conickx G, Bas S, Patel N, Staudinger HW, Suratt BT. A proof-of-mechanism trial in asthma with lunsekimig, a bispecific NANOBODY molecule. Eur Respir J. 2025 Apr 24;65(4):2401461. doi: 10.1183/13993003.01461-2024. Print 2025 Apr.

Reference Type RESULT
PMID: 39884759 (View on PubMed)

Deiteren A, Bontinck L, Conickx G, Vigan M, Dervaux N, Gassiot M, Bas S, Suratt B, Staudinger H, Krupka E. A first-in-human, single and multiple dose study of lunsekimig, a novel anti-TSLP/anti-IL-13 NANOBODY(R) compound, in healthy volunteers. Clin Transl Sci. 2024 Jun;17(6):e13864. doi: 10.1111/cts.13864.

Reference Type DERIVED
PMID: 38924698 (View on PubMed)

Related Links

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Other Identifiers

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U1111-1265-6232

Identifier Type: REGISTRY

Identifier Source: secondary_id

PDY16622

Identifier Type: OTHER

Identifier Source: secondary_id

2021-000356-19

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

PDY16622

Identifier Type: -

Identifier Source: org_study_id

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