This is a Phase 2, open-label, multicenter, study to evaluate safety, tolerability and efficacy of SAR442501 in children from birth up to 12 years of age with Achondroplasia.
Who can participate
Age range
0 Days – 12 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Participants must have ACH with a confirmed mutation in the FGFR3 gene
* Participants and/or parent(s) or legal representative(s) must be willing and able to perform all the study procedures to the best of their physical ability.
* Parent(s) or legal representative(s) capable of giving signed informed consent and participants capable of giving assent when applicable.
Exclusion Criteria:
* Have hypochondroplasia (or the N540K mutation) or short stature condition other than ACH (eg, trisomy 21, pseudochondroplasia)
* Participants have received any dose of medications or investigational product, including human growth hormone, IGF-1, intended to affect participants' stature or body proportions between the completion of OBS16647 and enrollment (Week 0/Day 1/Visit 2).
* Have a history of growth plate closure.
* Long bone fracture within 3 months of enrollment (Week 0/Day 1/Visit 2)
* Current evidence of corneal or retinal disorder/keratopathy.
* Participants have had a previous surgical intervention involving the foramen magnum (Stage 2 only).
* Hyperphosphatemia.
The above information is not intended to contain all considerations relevant to a potential participation in a clinical trial.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Stage 1: Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Treatment-Emergent Serious Adverse Events (SAEs) and Adverse Events of Special Interest (AESIs)
Timeframe: From the first dose of study drug administration (Day 1) up to early termination of the study, approximately 58 weeks (Stage 1: SAR442501 Dose A) and 46 weeks (Stage 1: SAR442501 Dose B)