Ignite Creation Date:
2025-12-24 @ 10:54 PM
Ignite Modification Date:
2026-01-01 @ 8:51 AM
Study NCT ID:
NCT00439569
Status:
TERMINATED
Last Update Posted:
2010-09-08
First Post:
2007-02-21
Is NOT Gene Therapy:
True
Has Adverse Events:
True
Brief Title:
Clinical Trial of Sodium Phenylbutyrate in Children With Spinal Muscular Atrophy Types II or III
Sponsor:
Westat
Organization:
Study Overview
Official Title:
Phase I/IIa Clinical Trial of Sodium Phenylbutyrate in Pediatric Subjects With Type II/III Spinal Muscular Atrophy
Status:
TERMINATED
Status Verified Date:
2009-08
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Due to poor compliance with study drug administration.
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
NPTUNE01
Brief Summary:
The purpose of this study is to identify the maximum tolerated dosage of sodium phenylbutyrate in children with spinal muscular atrophy types II or III; and to determine if the drug has an effect on SMN mRNA and protein levels.
Detailed Description:
Spinal muscular atrophy (SMA) is a genetic, neuromuscular disorder caused by progressive degeneration of motor neurons in the spinal cord, which results from the loss of survival motor neuron (SMN) protein. The disorder is characterized by weakness and wasting of the voluntary muscles and is a leading cause of hereditary infant death. Sodium phenylbutyrate--a drug used to treat urea cycle disorders--may increase the amount of SMN protein in the body and consequently may decrease the severity of SMA. However, this has not yet been proven.
In this multicenter trial, physicians will evaluate multiple dosage levels of sodium phenylbutyrate to determine the maximum tolerated dose (MTD), or the highest dose that can be safely given to children with SMA types II or III. The initial dosage tested will be 500 mg/kg/day. Depending upon tolerability, subsequent groups may receive dosages of 675, 900, or 1200 mg/kg/day. Blood levels of SMN mRNA and protein will also be measured to determine whether sodium phenylbutyrate can increase the amount of these two biomarkers in the blood. Up to 24 children will be enrolled in the study and will be on sodium phenylbutyrate for 12 weeks. The MTD will be determined based on safety data from Day 0 through the Day 29 visit. Participants will continue to be monitored for safety and SMN mRNA and protein levels through the 12 week study drug administration period.
Potential participants will be screened by having their complete medical and treatment histories recorded, as well as undergoing a physical examination, laboratory tests, and an electrocardiogram (EKG). Parents of eligible participants will receive a supply of sodium phenylbutyrate and instructions on how to administer the drug. Participants will return to the clinic on days 8, 22, 29, and at weeks 8 and 12 of the study to update their medical and treatment histories, have a physical exam, and have blood and urine collected for laboratory testing. A follow-up clinic visit will occur approximately 14 days after the last dose of sodium phenylbutyrate is given. During this visit participants will update their complete medical and treatment histories and have a physical examination. Duration of the study is about 14 weeks.
Information from this study, which is part of the NINDS Pilot Therapeutics Network (NPTUNE), may be used for future studies to determine if sodium phenylbutyrate is effective for treating SMA, and if the drug has an effect on SMA symptoms.
In this multicenter trial, physicians will evaluate multiple dosage levels of sodium phenylbutyrate to determine the maximum tolerated dose (MTD), or the highest dose that can be safely given to children with SMA types II or III. The initial dosage tested will be 500 mg/kg/day. Depending upon tolerability, subsequent groups may receive dosages of 675, 900, or 1200 mg/kg/day. Blood levels of SMN mRNA and protein will also be measured to determine whether sodium phenylbutyrate can increase the amount of these two biomarkers in the blood. Up to 24 children will be enrolled in the study and will be on sodium phenylbutyrate for 12 weeks. The MTD will be determined based on safety data from Day 0 through the Day 29 visit. Participants will continue to be monitored for safety and SMN mRNA and protein levels through the 12 week study drug administration period.
Potential participants will be screened by having their complete medical and treatment histories recorded, as well as undergoing a physical examination, laboratory tests, and an electrocardiogram (EKG). Parents of eligible participants will receive a supply of sodium phenylbutyrate and instructions on how to administer the drug. Participants will return to the clinic on days 8, 22, 29, and at weeks 8 and 12 of the study to update their medical and treatment histories, have a physical exam, and have blood and urine collected for laboratory testing. A follow-up clinic visit will occur approximately 14 days after the last dose of sodium phenylbutyrate is given. During this visit participants will update their complete medical and treatment histories and have a physical examination. Duration of the study is about 14 weeks.
Information from this study, which is part of the NINDS Pilot Therapeutics Network (NPTUNE), may be used for future studies to determine if sodium phenylbutyrate is effective for treating SMA, and if the drug has an effect on SMA symptoms.
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
Secondary ID Infos
| Secondary ID | Type | Domain | Link | View |
|---|---|---|---|---|
| HHSN265200423611C | OTHER_GRANT | NIH Contract | View | |
| N01NS42361 | NIH | None | https://reporter.nih.gov/quic… | View |