Vismodegib in Treating Younger Patients With Recurrent or Refractory Medulloblastoma

Recurrent Childhood Medulloblastoma Clinical Trial

Official title:

A Phase II Clinical Trial Evaluating the Efficacy and Safety of GDC-0449 in Children With Recurrent or Refractory Medulloblastoma

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01239316
• Other study ID #: NCI-2011-02546
• Secondary ID: NCI-2011-02546CD
• Status: Completed
• Phase: Phase 2
• First received: November 10, 2010
• Last updated: December 10, 2015
• Start date: November 2010
• Est. completion date: August 2015

Study information

• Verified date: April 2015
• Source: National Cancer Institute (NCI)
• Contact: n/a
• Is FDA regulated: No
• Health authority: United States: Food and Drug Administration
• Study type: Interventional

Clinical Trial Summary

This phase II trial studies how well vismodegib works in treating younger patients with recurrent or refractory medulloblastoma. Vismodegib may slow the growth of tumor cells.

Description:

PRIMARY OBJECTIVES:

I. Estimate the efficacy of GDC-0449 (vismodegib) treatment for pediatric patients with recurrent or refractory medulloblastoma, as measured by the sustained objective response rates for patients without (stratum A) and with (stratum B) evidence of activation of Hedgehog (Hh) signaling pathway in their tumors.

II. Characterize the pharmacokinetics (plasma) of GDC-0449 in children/adolescents with refractory medulloblastoma.

III. To document pathologic and genomic methods to identify medulloblastomas with activation of the Hh signaling pathway.

SECONDARY OBJECTIVES:

I. Document and describe toxicities associated with GDC-0449 administered on a daily schedule.

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

III. Characterize the pharmacokinetics (cerebrospinal fluid) of GDC-0449 in children/adolescents with refractory medulloblastoma.

OUTLINE: This is a multicenter study. Patients are stratified according to evidence of activation of Hedgehog signaling pathway in their tumors (without vs with vs unknown).

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

Plasma and cerebrospinal fluid samples are collected periodically for pharmacokinetic and other correlative studies.

After completion of study treatment, patients are followed up every other month for up to 12 months.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 12
• Est. completion date: August 2015
• Est. primary completion date: June 2014
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 3 Years to 21 Years

Eligibility

Inclusion Criteria:

• Patients with a histologically confirmed diagnosis of medulloblastoma that is recurrent, progressive, or refractory to standard therapy and for which there is no known curative therapy

• Patient must have adequate archival formalin fixed, paraffin embedded (FFPE) primary tumor material for biology studies; specifically, adequate archival FFPE tumor material is either:

• An FFPE block, preferably in which tumor occupies an area of at least 10x10 mm if available, and is free of surgical or processing artifacts; tumor in the submitted FFPE block must not have been obtained from the CUSA trap OR

• Preferably15x5µm sections if available from an FFPE tissue block conforming to the above criteria AND

• Tissue submission must be accompanied by a copy of the pathology report

• Patients must have bi-dimensionally measureable disease in the brain or spinal cord defined as at least one lesion that can be accurately measured in at least 2 planes in order to be eligible for this study

• Patients must have a body surface area (BSA) of >= 0.67m^2 and at most 2.5m^2

• 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

• Karnofsky performance status of >= 50% in patients > 16 years, or Lansky performance status of >= 50% in patients >= 3 yrs and =< 16 years, assessed within two weeks prior to registration

• Must have recovered from prior treatment-related toxicity; no other myelosuppressive chemotherapy or immunotherapy within 4 weeks prior to study entry (6 weeks if prior nitrosurea)

• 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; >= 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 (granulocyte colony stimulating factor [GCSF], granulocyte macrophage colony stimulating factor [GM CSF], erythropoietin)

• Prior therapy will include primary therapy (including radiation therapy and chemotherapy) and a maximum of 2 additional salvage therapies; patients can enroll on the protocol after failure on primary therapy

• Absolute neutrophil count (ANC) >= 1000 µL

• Platelet count >= 50,000/uL (transfusion independent)

• Hemoglobin >= 8.0 gm/dL (may receive red blood cell [RBC] transfusions)

• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70ml/min/1.73 m^2 or a serum creatinine =< 1.5 mg/dL

• Serum Total Bilirubin =< 1.5 x upper limit of normal (ULN) for age

• Serum glutamic-pyruvic transaminase (SGPT) (alanine aminotransferase [ALT]) =< 2.5 times institutional ULN for age

• Serum glutamic oxaloacetic transaminase (SGOT) (aspartate aminotransferase [AST]) =< 2.5 times institutional ULN for age

• Alkaline Phosphatase =< 1.5 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 specified in the Inclusion and Exclusion 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 have a negative serum pregnancy test (with a sensitivity of at least 25 mIU/mL) within 10-14 days and within 24 hours prior to the first dose of GDC-0449 (serum or urine); a pregnancy test (serum or urine) will be administered every 4 weeks if their menstrual cycles are regular or every 2 weeks if their cycles are irregular while on study within the 24-hour period prior to the administration of GDC-0449; 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; female patients are required to use two forms of acceptable contraception, including one barrier method during participation in the study and for the 12 months following the last dose; all patients should receive contraceptive counseling either by the investigator, or by an obstetrician (OB), gynecologist or other physician who is qualified in this area of expertise; if a woman of childbearing potential believes that her contraceptive method has failed, emergency contraception should be considered; if a patient is suspected to be pregnant, GDC-0449 should be immediately discontinued; in addition, a positive urine test must be confirmed by a serum pregnancy test; if it is confirmed that the patients is not pregnant, the patient may resume dosing with GDC-0449; if a female patient becomes pregnant during therapy or within 12 months after the last dose of GDC-0449, or if the female partner of a male patient exposed to the drug becomes pregnant while the male patient is receiving GDC-0449 or within 12 months after the last dose of GDC-0449, the investigator must be notified in order to facilitate outcome follow-up; female patients should not breastfeed a baby while on this study; female patients must NEVER donate ova while being treated with GDC-0449; all sexually active male subjects (including those who have undergone vasectomy) should utilize a barrier form of contraception during study treatment and for 12 months after the last dose as it is not known whether GDC-0449 that may be present in seminal fluid would cause serious or life-threatening birth defects in a fetus born to the female partner of a male subject; males should also not donate sperm during treatment or up to 12 months after the last dose

• Signed informed consent must be obtained including for pharmacokinetic study according to institutional guidelines

Exclusion Criteria:

• Central nervous system (CNS) embryonal tumor other than medulloblastoma; for example, patients with diagnosis of Atypical Teratoid / Rhabdoid Tumor (ATRT), primitive neuroectodermal tumor (PNET) from a non-cerebellar site within the central nervous system, ependymoblastoma, or medulloepithelioma

• 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, or warfarin

• Patients with inability to return for follow-up visits or obtain follow-up studies required to assess toxicity to therapy

• Other: below given criteria are confirmed by the patient history

• Inability to swallow capsules

• 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

• Clinically important history of liver disease, including viral or other hepatitis or cirrhosis

Study Design

Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Medulloblastoma
• Recurrent Childhood Medulloblastoma

Intervention

Other:
• Laboratory Biomarker Analysis
Correlative studies
• Pharmacological Study
Correlative studies

Drug:
• Vismodegib
Given PO

Locations

Country	Name	City	State
United States	National Cancer Institute Pediatric Oncology Branch	Bethesda	Maryland
United States	Lurie Children's Hospital-Chicago	Chicago	Illinois
United States	Cincinnati Children's Hospital Medical Center	Cincinnati	Ohio
United States	Duke University Medical Center	Durham	North Carolina
United States	Texas Children's Hospital	Houston	Texas
United States	Children's Hospital Los Angeles	Los Angeles	California
United States	St. Jude Children's Research Hospital	Memphis	Tennessee
United States	Memorial Sloan-Kettering Cancer Center	New York	New York
United States	Lucile Packard Children's Hospital Stanford University	Palo Alto	California
United States	Children's Hospital of Philadelphia	Philadelphia	Pennsylvania
United States	Children's Hospital of Pittsburgh of UPMC	Pittsburgh	Pennsylvania
United States	Children's National Medical Center	Washington	District of Columbia

Sponsors (1)

Lead Sponsor	Collaborator
National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Objective Response (CR+PR) Sustained for = 8 Weeks	Objective response is either a complete response or a partial response sustained for 8 weeks in a patient. The objective response rate will be reported separately for patients of each stratum. CR is complete disappearance of all enhancing tumor. PR is >= 50% reduction in tumor size.	Up to 12 months	No
Primary	Pharmacokinetics (Plasma) of GDC-0449	plasma GDC-0449 concentration of day 21 in first course	up to 12 month	No
Secondary	Progression-free Survival	Progression-free survival (PFS) is measured from the date of initial treatment with GDC-0449 until the earliest of progression or death on study. PFS is censored at the last tumor assessment date for patients without disease progression who have not died within 30 days of last exposure to study treatment. Kaplan-Meier method is used to estimate the progression-free survival.	From start of treatment up to 2 years	No
Secondary	Duration of Objective Response	The duration of objective response is measured from the initial scan documenting complete or partial response that was subsequently confirmed until the earlier of documented progression or death on study. Duration of objective response is censored at the last tumor assessment date for patients without disease progression who have not died within 30 days of last exposure to study treatment.	From start of treatment up to 2 years	No
Secondary	Pharmacokinetic Parameters of Vismodegib, CSF Penetration	The estimated median of cerebrospinal fluid (CSF) drug penetration is reported when expressed as an AUC ratio of CSF vismodegib to that of unbound drug in plasma.	up to 12 month	No