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Trial · NCT00957229

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

NCT00957229, Phase 2, Completed, UCSF Benioff Children's Hospital Oakland; results first posted 2021-01-11

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. To Determine The Efficacy and Safety of GDC-0449 in Patients With Basal Cell Nevus Syndrome (BCNS). Trials, record NCT00957229. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00957229

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
To Determine The Efficacy and Safety of GDC-0449 in Patients With Basal Cell Nevus Syndrome (BCNS)
NCT number
NCT00957229
Status
Completed
Phases
Phase 2
Enrollment
41 participants, actual
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Conditions
Basal Cell Nevus Syndrome, Gorlin Syndrome
Interventions
GDC-0449
First posted
2009-08-12
Last updated
2021-01-11
Results first posted
2021-01-11

Source ClinicalTrials.gov

Registered outcomes3

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryNumber of New Surgically Eligible Basal-cell Carcinomas3 months of receiving study drugNumber of new surgically eligible basal-cell carcinomas per patient per year
SecondaryChange in Size of the Existing Carcinomas, Expressed as the Sum of Cumulative Diameters in Millimeters Over an 18 Month PeriodBaseline and 18 months
SecondaryNumber of New Surgically Eligible Basal-cell Carcinomas After Stopping Vismodegib Treatment
These five patients were given placebo for a mean of 7.4 months (SD 2.3). After receiving vismodegib for a mean of 13.8 months (SD 6.8) and then discontinuing vismodegib for a mean of 11.8 months (SD 7.9) the new basal-cell carcinoma rate is reported.
The number of new surgically eligible basal-cell carcinomas per patient per month is reported.

Outcomes3

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of New Surgically Eligible Basal-cell Carcinomas3 months of receiving study drugevents per patient yearMEAN
SECONDARYChange in Size of the Existing Carcinomas, Expressed as the Sum of Cumulative Diameters in Millimeters Over an 18 Month PeriodBaseline and 18 monthsMillimetersNUMBER
SECONDARYNumber of New Surgically Eligible Basal-cell Carcinomas After Stopping Vismodegib Treatment
These five patients were given placebo for a mean of 7.4 months (SD 2.3). After receiving vismodegib for a mean of 13.8 months (SD 6.8) and then discontinuing vismodegib for a mean of 11.8 months (SD 7.9) the new basal-cell carcinoma rate is reported.
The incidence of new surgically eligible basal-cell carcinomas after stopping vismodegib was analysed in an exploratory analysis of the patients who crossed over to vismodegib and were followed up for at least 6 months after stopping vismodegib (n=5).
carcinomas per patient per monthMEAN

Results by group6

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Number of New Surgically Eligible Basal-cell CarcinomasSugar Pill34Standard Deviation 1.32events per patient year
Number of New Surgically Eligible Basal-cell CarcinomasGDC-04492Standard Deviation 0.12events per patient year
Change in Size of the Existing Carcinomas, Expressed as the Sum of Cumulative Diameters in Millimeters Over an 18 Month PeriodSugar Pill5595% Confidence Interval NA to NAMillimeters
Change in Size of the Existing Carcinomas, Expressed as the Sum of Cumulative Diameters in Millimeters Over an 18 Month PeriodGDC-0449-6095% Confidence Interval NA to NAMillimeters
Number of New Surgically Eligible Basal-cell Carcinomas After Stopping Vismodegib TreatmentSugar Pill1.7Standard Deviation 1.5carcinomas per patient per month
Number of New Surgically Eligible Basal-cell Carcinomas After Stopping Vismodegib TreatmentGDC-04490.06Standard Deviation 0.12carcinomas per patient per month

Participant flow12

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Study StartSTARTEDSugar Pill15
Study StartSTARTEDGDC-044926
Study StartCOMPLETEDSugar Pill14
Study StartCOMPLETEDGDC-044923
Study StartNOT COMPLETEDSugar Pill1
Study StartNOT COMPLETEDGDC-04493
Reallocated to or Continued VismodegibSTARTEDSugar Pill14
Reallocated to or Continued VismodegibSTARTEDGDC-044923
Reallocated to or Continued VismodegibCOMPLETEDSugar Pill11
Reallocated to or Continued VismodegibCOMPLETEDGDC-044921

Adverse events52

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherHair lossSkin and subcutaneous tissue disordersSugar Pill115
otherHair lossSkin and subcutaneous tissue disordersGDC-04494040
otherMuscle crampsMusculoskeletal and connective tissue disordersSugar Pill115
otherMuscle crampsMusculoskeletal and connective tissue disordersGDC-04494040
otherDysgeusiaGastrointestinal disordersSugar Pill115
otherDysgeusiaGastrointestinal disordersGDC-04493740
otherGastrointestinal upsetGastrointestinal disordersSugar Pill215
otherGastrointestinal upsetGastrointestinal disordersGDC-04492640
otherWeight lossMetabolism and nutrition disordersSugar Pill115
otherWeight lossMetabolism and nutrition disordersGDC-04492540

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalitySugar Pill015
Total, all-cause mortalityGDC-0449240
Total, other adverse eventsSugar Pill1215
Total, other adverse eventsGDC-04494040
Total, serious adverse eventsSugar Pill215
Total, serious adverse eventsGDC-04492140

Papers3

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
22670904RESULTPubMed
24623282RESULTPubMed
27838224RESULTPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Sugar Pill vs GDC-0449: deaths from any causeTrial comparisons
Sugar Pill vs GDC-0449: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT00957229

GET https://conductscience.org/api/trials/v1/NCT00957229/events?page=2