An Interventional Study of Infigratinib in Children With Hypochondroplasia

NCT ID: NCT06873035

Last Updated: 2025-12-15

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

ENROLLING_BY_INVITATION

Clinical Phase

PHASE2/PHASE3

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-04-22

Study Completion Date

2027-01-31

Brief Summary

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ACCEL2/3 is a Phase 2/3 study. The purpose of the Phase 2 portion of the study (ACCEL2/3) is to evaluate the efficacy and safety, of infigratinib in children with hypochondroplasia (HCH) receiving infigratinib, at one of two doses, of who have completed at least 26 weeks of participation in QED-sponsored ACCEL (QBGJ398-004).

Detailed Description

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ACCEL 2/3 is a Phase 2/3 study that comprises of 2 portions. The Phase 2 portion is an open-label, portion in children with HCH aged 5 to 11 years old followed by a Phase 3 portion which is double-blind, placebo-controlled in children with HCH aged \>3 years old to \<18 years old.

Conditions

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Hypochondroplasia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

This study comprises an open-label Phase 2 portion to evaluate safety and efficacy in participants receiving infigratinib at one of two doses followed by a Phase 3 randomized, double-blind portion of the dose selected from the Phase 2 portion versus placebo.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Phase 2 Cohort 1

infigratinib (0.128 mg/kg/day)

Group Type EXPERIMENTAL

infigratinib 0.128 mg/kg/day

Intervention Type DRUG

Oral infigratinib 0.128 mg/kg/day

Phase 2 Cohort 2

infigratinib (0.25 mg/kg/day)

Group Type EXPERIMENTAL

infigratinib 0.25 mg/kg/day

Intervention Type DRUG

Oral infigratinib 0.25 mg/kg/day

Interventions

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infigratinib 0.128 mg/kg/day

Oral infigratinib 0.128 mg/kg/day

Intervention Type DRUG

infigratinib 0.25 mg/kg/day

Oral infigratinib 0.25 mg/kg/day

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Participants must have completed at least 26 weeks and still be on the observational study (QBGJ398-004).
* Phase 2 portion: Participants 5-11 years of age (inclusive).
* Phase 3 portion: Participants 3 to \<18 years of age at screening with growth potential
* Diagnosis of HCH documented clinically by the presence of disproportionate short stature and confirmed with a molecular test.
* Participants are able to swallow oral medication.
* Participants and parent(s), legal guardian(s), or caregiver(s) are willing and able to comply with study visits and study procedures.
* Participants are ambulatory and able to stand without assistance. Sex and Contraceptive/Barrier Requirements
* Negative pregnancy test in girls ≥10 years of age or girls of any age who have experienced menarche.
* If sexually active, participants whether male or female, must be willing to use a highly effective method of contraception, as relevant, while taking study drug and for 1 month after the last dose of study drug.
* Signed informed consent.

Exclusion Criteria

* Participants who have ACH or a short stature condition other than HCH.
* Significant concurrent disease or condition that, in the view of the investigator and/or sponsor, would confound assessment of efficacy or safety of infigratinib.
* Current evidence of clinically significant corneal or retinal disorder/keratopathy confirmed by ophthalmic examination.
* Concurrent circumstance, disease, or condition that, in the view of the investigator and/or sponsor, would interfere with study participation or safety evaluations.
* History and/or current evidence of extensive ectopic tissue calcification.
* History of malignancy.
* Having received or planning to receive treatment with any other investigational or approved product for the treatment of ACH, HCH, or short stature.
* Regular long-term treatment (≥3 weeks) with supraphysiologic doses of glucocorticoid.
* Previous limb-lengthening surgery at any time or planned/expected to have limb-lengthening or guided growth surgery while participating in the study.
* Participants receiving medications which could increase serum phosphorus and/or calcium concentrations
* Clinically significant abnormality in any laboratory test result at screening.
* Pregnant or breastfeeding at the screening visit or planning to become pregnant (self or partner) at any time during the study.
* Allergy to any components of the study drug.
* Concurrent circumstance, disease, or condition that would interfere with study participation.
Minimum Eligible Age

3 Years

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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QED Therapeutics, a BridgeBio company

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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UCSF Benioff Children's Hospital

Oakland, California, United States

Site Status

Childrens Hospital Colorado

Aurora, Colorado, United States

Site Status

Children's National Hospital

Washington D.C., District of Columbia, United States

Site Status

Johns Hopkins School of Medicine

Baltimore, Maryland, United States

Site Status

University of Missouri

Columbia, Missouri, United States

Site Status

Vanderbilt University Medical Center

Nashville, Tennessee, United States

Site Status

University of Wisconsin Madison - Waisman Center Bone Dysplasia Clinic

Madison, Wisconsin, United States

Site Status

Murdoch Children's Research Institute

Parkville, Victoria, Australia

Site Status

London Health Services Center - Children's Hospital of Western Ontario

London, Ontario, Canada

Site Status

Children's Hospital of Eastern Ontario Research Institute

Ottawa, Ontario, Canada

Site Status

Université de Montréal - Centre Hospitalier Universitaire Sainte-Justine

Montreal, Quebec, Canada

Site Status

Hôpital Femme Mère Enfant

Bron, France, France

Site Status

Hôpital Universitaire Necker-Enfants Malades

Paris, France, France

Site Status

Centre Hospitalier Universitaire (CHU) de Toulouse - Hôpital des Enfants

Toulouse, France, France

Site Status

Haukeland University Hospital

Bergen, Norway, Norway

Site Status

Paediatric Clinical Research Unit at Osla University Hospital

Oslo, Norway, Norway

Site Status

Hospital Pediátrico de Coimbra

Coimbra, Portugal, Portugal

Site Status

KK Women's and Children's Hospital

Singapore, Singapore, Singapore

Site Status

Hospital Vithas San Jose

Vitoria-Gasteiz, Spain, Spain

Site Status

Astrid Lindgren Children's Hospital

Solna, Sweden, Sweden

Site Status

Manchester University

Manchester, United Kingdom, United Kingdom

Site Status

Sheffield Children's Hospital

Sheffield, United Kingdom, United Kingdom

Site Status

Countries

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United States Australia Canada France Norway Portugal Singapore Spain Sweden United Kingdom

Other Identifiers

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QBGJ398-304

Identifier Type: -

Identifier Source: org_study_id

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