Status:

TERMINATED

An Efficacy and Safety Study of Palovarotene for the Treatment of MO

Lead Sponsor:

Clementia Pharmaceuticals Inc.

Conditions:

Exostoses, Multiple Hereditary

Eligibility:

All Genders

2-14 years

Phase:

PHASE2

Brief Summary

This is a randomized, double-blind, placebo-controlled study comparing the safety and efficacy of 2 dosage regimens of palovarotene versus placebo in preventing disease progression in pediatric subjec...

Detailed Description

Multiple osteochondromas is a rare condition where children develop multiple benign cartilage-capped bony tumors called osteochondromas on bones throughout the body, resulting in pain, deformity, limb...

Eligibility Criteria

Inclusion

  • Key
  • Written, signed, and dated informed subject/parent consent and age-appropriate assent (performed according to local regulations).
  • A clinical diagnosis of MO with disease-causing exostosin 1 or 2 gene mutations.
  • Male or female from 2 to 14 years of age.
  • Female subjects must be premenarchal at screening.
  • A bone age at screening of 14 years or less.
  • Symptomatic MO, defined as five or more clinically evident osteochondromas and a new or enlarged osteochondroma that occurred in the preceding 12 months, five or more clinically evident osteochondromas and the presence of a painful osteochondroma, a skeletal deformity, a joint limitation, or prior surgery for a MO-related complication.
  • The ability to undergo whole body MRI with or without sedation/general anesthesia.
  • Use of two effective methods of birth control during treatment, and for 1 month after treatment discontinuation, unless committed to true abstinence from heterosexual sex. Sexually active females of child-bearing potential must also agree to start effective methods of birth control at screening.
  • Key

Exclusion

  • Weight under 10 kg.
  • Other syndromic conditions such as Langer-Giedion or Potocki-Shaffer.
  • Any subject with neurologic signs suggestive of spinal cord impingement.
  • Concomitant medications that are strong inhibitors or inducers of cytochrome P450 3A4 activity.
  • Amylase or lipase \>2 times the above the upper limit of normal (\>2×ULN) or with a history of chronic pancreatitis.
  • Elevated aspartate aminotransferase or alanine aminotransferase above 2.5×ULN.
  • Any surgical implant that is contraindicated for MRI.

Key Trial Info

Start Date :

March 22 2018

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

October 30 2020

Estimated Enrollment :

193 Patients enrolled

Trial Details

Trial ID

NCT03442985

Start Date

March 22 2018

End Date

October 30 2020

Last Update

August 1 2022

Active Locations (31)

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Page 1 of 8 (31 locations)

1

Children's Orthopaedic Center

Los Angeles, California, United States, 90027

2

Shriners Hospital for Children - Sacramento

Sacramento, California, United States, 95817

3

University of California-San Francisco

San Francisco, California, United States, 94158

4

Children's National Medical Center

Washington D.C., District of Columbia, United States, 20010