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Completed

NCT Number: NCT07146750

A Bioequivalence Study of Amlitelimab Delivered by 2 Different Devices in Healthy Adult Participants

This is a single-center, open-label, randomized, single-dose, parallel, Phase 1, 4-arm study designed to determine the bioequivalence and investigate the safety and tolerability profiles of subcutaneous amlitelimab delivered by 2 different devices at 2 different total doses in healthy adult participants.

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Key information

Conditions

Age range

18 year–55 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Clinical Pharmacology of Miami- Site Number : 8400001

Miami, Florida, 33014, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male and/or female participant, between 18 and 55 years of age, inclusive, at the time of signing the informed consent form (ICF).
  • Certified as healthy by a comprehensive clinical assessment [detailed medical history and complete physical examination including neurological exam (at screening and D1), skin, and mucous membranes].
  • Body weight between 50.0 and 100.0 kg, inclusive, if male, and between 40.0 and 90.0 kg, inclusive, if female, body mass index between 18.0 and 30.0 kg/m2, inclusive.

Exclusion criteria

  • Any history or presence of clinically relevant cardiovascular, pulmonary, gastrointestinal, dermatologic, hepatic, renal, metabolic, hematological, neurological, osteomuscular, articular, psychiatric, systemic, ocular, gynecologic (if female), or infectious disease, or signs of acute illness.
  • Known history of significant immunosuppression or suspected current significant immunosuppression, including history of invasive opportunistic or helminthic infections despite infection resolution or otherwise recurrent infections of abnormal frequency or prolonged duration.
  • Any malignancies or history of malignancies prior to baseline (except for non-melanoma skin cancer that has been excised and cured for more than 5 years prior to baseline).
  • History of solid organ (including corneal transplant) or stem cell transplant.
  • Any pre-planned major elective surgery known about at baseline visit that in the Investigator's opinion would impede participation in the study.
  • Frequent headaches and/or migraine, recurrent nausea and/or vomiting (for vomiting only: more than twice a month).
  • Blood donation, any volume, within 2 months before inclusion.
  • Any nicotine use within 4 weeks before study inclusion. Regular smoking more than 5 cigarettes or equivalent in nicotine per week, unable to stop smoking or using nicotine for duration of the study.
  • If female, pregnancy (defined as positive beta human chorionic gonadotropin [β-HCG] blood test), breast feeding.

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

Treatment and study plan

SAR445229

Combination Product

Single dose

Other names: Amlitelimab

Primary outcomes

  1. PK parameter: Cmax

    Time frame: From Day 1 up to End of study (approximately 24 weeks)

    Maximum serum concentration observed.

  2. Pharmacokinetic (PK) profile: AUC last

    Time frame: From Day 1 up to End of study (approximately 24 weeks)

    Area under the serum concentration versus time curve calculated using the trapezoidal method from time zero to the real time.

  3. Pharmacokinetic (PK) profile: AUC

    Time frame: From Day 1 up to End of study (approximately 24 weeks)

    Area under the serum concentration versus time curve extrapolated to infinity.

Secondary outcomes

  1. PK parameter: Tmax

    Time frame: From Day 1 up to End of study (approximately 24 weeks)

    Time to reach Cmax.

  2. PK parameter: t1/2z

    Time frame: From Day 1 up to End of study (approximately 24 weeks)

    Terminal half-life associated with the terminal slope (λz) determined

  3. PK parameter: CL/F

    Time frame: From Day 1 up to End of study (approximately 24 weeks)

    Apparent total body clearance after a single subcutaneous administration of a drug from the serum.

  4. PK parameter: Vz/F

    Time frame: From Day 1 up to End of study (approximately 24 weeks)

    Apparent volume of distribution during the terminal (λz) phase.

  5. Pharmacokinetic (PK) profile: AUCext

    Time frame: From Day 1 up to End of study (approximately 24 weeks)

    Percentage of extrapolated part of AUC.

  6. Percentage of participants who experienced TEAEs including ISRs, TESAEs, and/or TEAESIs

    Time frame: Up to end of study (approximately 24 weeks)

    TEAEs (Treatment-Emergent Adverse Events) including ISRs (local tolerability assessment), TESAEs (Treatment-Emergent Serious Adverse Events), and/or TEAESIs (Treatment Emergent Adverse Event of Special Interest).

  7. Percentage of participants with potentially clinically significant abnormalities

    Time frame: Up to end of study (approximately 24 weeks)

    Clinically significant abnormalities including Clinical laboratory evaluations, Vital signs, electrocardiogram (ECG).

  8. Visual analog scale score for pain with subcutaneous administration

    Time frame: Day 1

    VAS (visual analog scale) is used to evaluate pain at the treatment injection site. In a range between 0 to 10 where 10 is the worst pain.

  9. Incidence of participants with ADA (antidrug antibody) against amlitelimab.

    Time frame: Up to end of study (approximately 24 weeks)

Sponsors and collaborators

Lead sponsor

Sanofi

Industry

Registry information

Official study title

An Open-label, Phase 1, Randomized, Parallel Design Study to Determine the Bioequivalence and Investigate the Safety and Tolerability of Subcutaneous Amlitelimab Delivered by 2 Different Devices in Healthy Adult Participants

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Aug 28, 2025
Registry last updated
Apr 20, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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