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Clinical Trial Summary

SAR439459 is a human anti-Transforming growth factor β (TGFβ) monoclonal antibody. This phase 1 clinical study investigates the safety, tolerability, and activity of a single dose of SAR439459 in adult participants with OI. Participants will receive a single IV dose of SAR439459 with safety, pharmacokinetic (PK), and pharmacodynamic (PD) assessments over 24 weeks. There will be up to 3 dose cohorts. In addition to safety, tolerability, and PK assessments, bone mineral density (BMD) will be evaluated by dual-energy Xray absorptimetry (DXA) scan and a series of blood biomarkers will be monitored to document pharmacodynamic effects of the single dose of SAR439459.


Clinical Trial Description

The duration of the study for all participants will be approximately 29 weeks: - Up to 5 weeks from initiation of screening to dose administration - Treatment on Day 1 - Follow-up and observation of safety and PD for 24 weeks - Final study visit at Week 24 ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05231668
Study type Interventional
Source Sanofi
Contact Trial Transparency email recommended (Toll free for US & Canada)
Phone 800-633-1610
Email Contact-US@sanofi.com
Status Recruiting
Phase Phase 1
Start date August 25, 2022
Completion date June 30, 2025

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