Clinical Trial: To Determine The Efficacy and Safety of GDC-0449 in Patients With Basal Cell Nevus Syndrome (BCNS)

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: A Randomized, Phase II Multicenter Trial Evaluating the Efficacy and Safety of a Systemic Hedgehog Pathway Antagonist (GDC-0449) in Patients With Basal Cell Nevus Syndrome (BCNS)

Brief Summary: The purpose of this study is to reduce the number of new surgically eligible BCCs by 50% appearing during month 3-18 of medication ingestion.

Detailed Summary: This is a Phase II, 18 month, double blind, randomized placebo-controlled, two arm multicenter clinical study design. During the 18-month treatment period, the safety and chemopreventive efficacy of 150 mg/day GDC-0449 versus placebo will be assessed, and include evaluations of the skin at monthly intervals for the first three months and then every 3 months for the next 15 months. Removal of new surgically eligible BCCs (SEBs) will be done by primary skin care physicians (PSCPs) or at Study Centers. A Data Safety Monitoring Board (DSMB) will review unblinded results for an interim analysis when 20 subjects have completed 12 months of drug. This review will focus on adverse events and efficacy results. Subjects will be monitored for the development of new SEBs after they discontinue study treatment. At the end of the 18 months, given that the observed adverse events are minimal, patients on placebo will be offered the opportunity to take GDC-0449 for 18 months in an open label continuation, followed by six months observation, and patients on GDC449 will be monitored for the next 24 months for assessment of the duration of benefit after stopping the drug.
Sponsor: Children's Hospital & Research Center Oakland

Current Primary Outcome: OBJECTIVES Primary: - To evaluate the efficacy of GDC-0449 in reducing new surgically eligible BCCs in BCNS patients during month 3-18 of ingestion of 150 mg/day. - To evaluate the safety of this dose of GDC-0449 in these patients [ Time Frame: Monthly ]

Original Primary Outcome: Same as current

Current Secondary Outcome: Secondary: - To assess the effect of GDC-0449 in reducing the total number of BCCs of diameter 5mm or greater on the upper back. - To determine the duration of any anti-BCC effect of GDC-0449 after administration of the drug is stopped. [ Time Frame: Effacacy will assessed at 1 year and duration of anti-BCC effect will be assessed 6 months after study med is stopped. ]

Original Secondary Outcome: Same as current

Information By: Children's Hospital & Research Center Oakland

Dates:
Date Received: August 5, 2009
Date Started: August 2009
Date Completion:
Last Updated: June 2, 2016
Last Verified: January 2016