Clinical trial NCT00939484: Vismodegib in Treating Patients With Recurrent or Refractory Medulloblastoma
Official title: A Phase II Clinical Trial Evaluating the Efficacy and Safety of GDC-0449 in Adults With Recurrent or Refractory Medulloblastoma
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: Adult Medulloblastoma
Lead sponsor: National Cancer Institute (NCI)
Sponsor class: NIH
First posted: 2009-07-15
Enrollment: 31
Sex: ALL
Minimum age (years): 22
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: This phase II trial is studying how well vismodegib works in treating adult patients with recurrent or refractory medulloblastoma. Vismodegib may slow the growth of tumor cells and may be an effective treatment for medulloblastoma.

Detailed description: PRIMARY OBJECTIVES:

I. To estimate the efficacy of GDC-0449 (vismodegib) treatment for adult patients with recurrent or refractory medulloblastoma, as measured by the objective response rates for patients without (Stratum A) and with (Stratum B) evidence of activation of Sonic Hedgehog (SHH) signaling pathway tumors.

SECONDARY OBJECTIVES:

I. To assess the safety and tolerability of GDC-0449 administered on a once daily schedule.

II. To estimate the duration of objective response and progression-free survival (PFS).

III. To characterize the pharmacokinetics (plasma and cerebrospinal fluid) of GDC-0449 in adults with refractory medulloblastoma.

IV. To document pathologic and genomic methods to identify CNS tumors with activation of the PTCH/SHH pathway.

V. To describe the objective responses observed in patients whose pathologic assessment of tumor result in unknown (Stratum C) evidence of activation of Sonic Hedgehog (SHH) signaling pathway tumors.

OUTLINE: This is a multicenter study. Patients are stratified according to PTCH/Sonic Hedgehog signaling pathway activation (inactivated vs activated vs unknown).

Patients receive vismodegib orally (PO) once daily on days 1-28. Treatment repeats every 28 days for up to 26 courses in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up periodically for up to 12 months.

Eligibility criteria: Inclusion Criteria:

* Patients with a histologically confirmed diagnosis of medulloblastoma (including posterior fossa PNET) that is recurrent, progressive, or refractory to standard therapy and for which there is no known curative therapy are eligible; there must be evidence of residual measurable disease or lesion in pre-study MRI as described in section; patients with spinal disease that is measurable will be eligible
* The diagnosis should be confirmed at the treating institution and tissue (either from the diagnosis or relapse or preferably from both time points) must be available for biological studies
* Patients with neurological deficits should have deficits that are stable for a minimum of 1 week prior to registration; this is to be documented in the database
* Eastern Cooperative Oncology Group (ECOG) performance status 0- 2
* No other myelosuppressive chemotherapy or immunotherapy within 4 weeks prior to study entry (6 weeks if prior nitrosourea)
* Decadron dose should also be stable or decreasing for at least 1 week (7days) prior to starting therapy
* Radiation therapy (XRT) \>= 3 months prior to study entry for craniospinal irradiation (\>= 23 Gy); \>= 8 weeks for local irradiation to primary tumor; \>= 2 weeks prior to study entry for focal irradiation for symptomatic metastatic sites
* Off all colony stimulating factors \>= 1 week prior to study entry (GCSF, GM CSF, erythropoietin)
* Absolute neutrophil count (ANC) \>= 1000/μL
* Platelet count \>= 50,000/uL (transfusion independent)
* Hemoglobin \>= 8.0 gm/dL (may receive RBC transfusions)
* Creatinine clearance or radio-isotope GFR \>= 70ml/min/1.73 m2 or
* A serum creatinine =\< 2.0 mg/dL
* Total bilirubin =\< 1.5 x upper limit of normal (ULN) for age
* Serum glutamic pyruvic transaminase (SGPT) (alanine aminotransferase \[ALT\]) =\< 2.5 x institutional ULN
* Serum glutamic-oxalacetic transaminase (SGOT) (aspartate aminotransferase \[AST\]) =\< 2.5 times institutional ULN
* Serum albumin \>= 2.5 g/dL
* Patient must have recovered from the significant acute toxicities of all prior therapy before entering this study and meet all other eligibility criteria
* Pregnancy should be avoided for 12 months after the last dose of GDC-0449 for females of child-bearing potential; female patients of childbearing potential must not be pregnant or breast-feeding; female patients of childbearing potential must have a negative serum or urine pregnancy test within 24 hours prior to beginning treatment
* Women of childbearing potential are required to use 2 forms of acceptable contraception, including one barrier method during participation in the study and for the 12 months following the last dose; for medical or personal reasons, 100% commitment to abstinence is considered an acceptable form of birth control. All patients should receive contraceptive counseling either by the investigator, or by an OB/gynecologist or other physician who is qualified in this area of expertise; prior to dispensing GDC-0449, the investigator must confirm and document the patient's use of two contraceptive methods, dates of negative pregnancy test, and confirm the patient's understanding of the of GDC-0449 to cause spontaneous abortion or birth defects
* Signed informed consent according to institutional guidelines must be obtained

Exclusion Criteria:

* Patients with any clinically significant unrelated systemic illness (serious infections or significant cardiac, pulmonary, hepatic or other organ dysfunction), that would compromise the patient's ability to tolerate protocol therapy or would likely interfere with the study procedures or results
* Patients receiving any other anticancer or investigational drug therapy
* Patients with inability to return for follow-up visits or obtain follow-up studies required to assess toxicity to therapy
* Life expectancy \< 12 weeks as determined by treating physician
* Inability to swallow capsules
* Prior treatment with GDC-0449 or other antagonists of the HH pathway
* Malabsorption syndrome or other condition that would interfere with enteral absorption
* History of congestive heart failure
* History of ventricular arrhythmia requiring medication
* Uncontrolled hypocalcemia, hypomagnesemia, hyponatremia or hypokalemia defined as less than the lower limit of normal for the institution despite adequate electrolyte supplementation
* Congenital long QT syndrome

Primary outcomes:
measure: Objective Response (CR+PR) Sustained for ≥ 8 Weeks
timeFrame: Up to 12 months
Secondary outcomes:
measure: Progression-free Survival
timeFrame: From start of treatment up to 2 years
measure: Duration of Objective Response
timeFrame: From start of treatment up to 2 years
measure: Pharmacokinetic Parameters of Vismodegib, CSF Penetration
timeFrame: up to 12 month
Other outcomes:
Locations:
city: Los Angeles
country: United States
facility: Children's Hospital Los Angeles
state: California
city: Palo Alto
country: United States
facility: Lucile Packard Children's Hospital Stanford University
state: California
city: San Francisco
country: United States
facility: UCSF Medical Center-Mount Zion
state: California
city: Washington
country: United States
facility: Children's National Medical Center
state: District of Columbia
city: Chicago
country: United States
facility: Lurie Children's Hospital-Chicago
state: Illinois
city: New York
country: United States
facility: Memorial Sloan-Kettering Cancer Center
state: New York
city: Durham
country: United States
facility: Duke University Medical Center
state: North Carolina
city: Cincinnati
country: United States
facility: Cincinnati Children's Hospital Medical Center
state: Ohio
city: Philadelphia
country: United States
facility: Children's Hospital of Philadelphia
state: Pennsylvania
city: Pittsburgh
country: United States
facility: Children's Hospital of Pittsburgh of UPMC
state: Pennsylvania
city: Memphis
country: United States
facility: Pediatric Brain Tumor Consortium
state: Tennessee
city: Memphis
country: United States
facility: St. Jude Children's Research Hospital
state: Tennessee
city: Houston
country: United States
facility: Baylor College of Medicine
state: Texas
Study officials:
affiliation: Pediatric Brain Tumor Consortium
name: Amar Gajjar
role: PRINCIPAL_INVESTIGATOR
References:
citation: Robinson GW, Orr BA, Wu G, Gururangan S, Lin T, Qaddoumi I, Packer RJ, Goldman S, Prados MD, Desjardins A, Chintagumpala M, Takebe N, Kaste SC, Rusch M, Allen SJ, Onar-Thomas A, Stewart CF, Fouladi M, Boyett JM, Gilbertson RJ, Curran T, Ellison DW, Gajjar A. Vismodegib Exerts Targeted Efficacy Against Recurrent Sonic Hedgehog-Subgroup Medulloblastoma: Results From Phase II Pediatric Brain Tumor Consortium Studies PBTC-025B and PBTC-032. J Clin Oncol. 2015 Aug 20;33(24):2646-54. doi: 10.1200/JCO.2014.60.1591. Epub 2015 Jul 13.