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Terminated Phase 2 Interventional Results available

A Study Of Safety, Tolerability And Effectiveness Of Recifercept In Children With Achondroplasia

ClinicalTrials.gov ID: NCT04638153

Public ClinicalTrials.gov record NCT04638153. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 6, 2026, 3:13 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A PHASE 2 MULTIPLE DOSE, RANDOMIZED STUDY TO ASSESS THE SAFETY, TOLERABILITY, PHARMACOKINETICS AND EFFICACY OF RECIFERCEPT IN CHILDREN WITH ACHONDROPLASIA

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Approximately 63 participants will be randomized to one of three doses to receive Recifercept either * Low Dose * Medium Dose * High Dose Participants will will attend the clinic at baseline and at Day 1, 4, 8, 15, 29 \& then Month 2, 3 6, 9 \& 12. Assessments include safety, blood sampling, physical examination, vital signs, anthropometric body measurements \& patient/caregiver quality of life questionnaires Participants will received treatment with Recifercept for 12 months. All participants who complete the study and in the opinion of the investigator, continue to have a positive risk:benefit profile, will be offered to enroll into an open-label extension (OLE) study. A PK cohort will include 12 participants who will randomly receive a single dose of 3 mg/kg of Phase 2 study (process 1c) formulation and a single dose of 3 mg/kg of the proposed Phase 3 (process 2) study formulation in a cross over study. Dose of the cohort could be changed due to emerging safety and efficacy data in the study.

Study identification

NCT ID
NCT04638153
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Lead sponsor
Pfizer
Industry
Enrollment
60 participants

Conditions and interventions

Conditions

Interventions

Biological

Eligibility (public fields only)

Age range
3 Months to 10 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 1, 2020
Primary completion
Jan 15, 2023
Completion
Mar 26, 2023
Last update posted
Feb 14, 2024

2020 – 2023

United States locations

U.S. sites
6
U.S. states
3
U.S. cities
6
Facility City State ZIP Site status
Ocean Sleep Medicine Aliso Viejo California 92656
Ocean Sleep Medicine Irvine California 92604
MemorialCare Sleep Disorders Center at Long Beach Memorial Medical Center Long Beach California 90806
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center Torrance California 90502
Nemours Alfred I duPont Hospital for Children Wilmington Delaware 19803
Texas Children's Hospital Houston Texas 77030

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 10 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04638153, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 14, 2024 · Synced Sep 6, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04638153 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →