Suberoylanilide Hydroxamic Acid (SAHA), Bevacizumab, Daily Temozolomide for Recurrent Malignant Gliomas

Phase 1

Completed

Conditions: Brain Tumor
Glioblastoma

Interventions: Drug: Vorinostst/Bevacizumab/Temozolomide

Registration Number: NCT00939991

Lead Sponsor: Katy Peters

Brief Summary: This is a Phase I/II open-label, single-arm study among recurrent malignant glioma patients. Patients will be treated with Vorinostat in combination with Bevacizumab (BV) (10 mg/kg) and Temozolomide (T) (50 mg/m2/day) BV is administered every 2 weeks. Temozolomide will be taken orally once every day. Vorinostat will be taken orally on days 1-7 and 15-21 of each 28-day cycle. In the phase I portion of this study, the dose of Vorinostat will be escalated in successive cohorts of patients to determine the maximum tolerated dose (MTD) based on dose-limiting toxicities (DLTs). In the phase II portion of this study, the dose of Vorinostat will be the MTD determined in the phase I portion. The primary endpoint of the phase II study is 6-month progression-free survival (PFS) for recurrent GBM (Glioblastoma) patients. This study will be conducted at The Preston Robert Tisch Brain Tumor Center at Duke.

Detailed Description: Not available

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 48

Inclusion Criteria

Patients must have histologically confirmed diagnosis of malignant glioma and radiographic evidence of recurrence or disease progression (defined as either a greater than 25% increase in the largest bidimensional product of enhancement or a new enhancing lesion) following prior therapy. In addition, the following must be met:

Phase I specific

WHO grade 3 or 4 malignant glioma Phase II specific
WHO grade 4 malignant glioma
No more than 2 prior episodes of disease progression

Common to both Phase I and Phase II

Age * 18 years
KPS (Karnofsky Performance Scale) ≥ 70%
An interval of at least 4 weeks between prior surgical resection or one week from stereotactic biopsy
An interval of at least 12 weeks from the end of prior radiotherapy unless there is a new area of enhancement consistent with recurrent tumor outside of the radiation field, or there are progressive changes on MRI on at least two consecutive MRI scans at least four weeks apart, or there is biopsy-proven tumor progression
An interval of at least 4 weeks from prior chemotherapy (6 weeks for nitrosoureas) or investigational agent unless the patient has recovered from all anticipated toxicities associated with that therapy
Hematocrit ≥ 29%, ANC ≥ 1,000 cells/*l, platelets ≥ 100,000 cells/*l
Serum creatinine < 1.5 times upper limit of normal, serum SGOT < 2.5 times upper limit of normal and bilirubin < 2.0 times upper limit of normal
Signed informed consent approved by the Institutional Review Board prior to patient entry
No evidence of hemorrhage on the baseline MRI or CT scan other than those that are stable grade 1
If sexually active, patients will take contraceptive measures for the duration of the treatments. Medically acceptable contraceptives include:
1. surgical sterilization (such as a tubal ligation, hysterectomy, vasectomy),
2. approved hormonal contraceptives (such as birth control pills, patches, implants or injections),
3. barrier methods (such as a condom or diaphragm) used with a spermicide, or
4. an intrauterine device (IUD).

Exclusion Criteria

Prior therapy with histone deacetylase inhibitors; valproic acid is not permitted and patients previously treated with valproic acid must be off valproic acid for at least 30 days prior to initiation of study medication
Co-medication that may interfere with study results; e.g. immuno-suppressive agents other than corticosteroids
Active infection requiring intravenous antibiotics
Progression on prior bevacizumab or daily temozolomide
Grade 3 or greater toxicity related to prior bevacizumab or daily temozolomide therapy
Requires therapeutic anti-coagulation with warfarin
Life expectancy of <12 weeks
Active malignancy other than basal or squamous cell skin ca or carcinoma in situ of cervix within 5 years
Subject recruitment and compensation - subjects will be recruited for this study as follows:
- Upon determination that a subject's tumor histology and/or radiographic findings are compatible with the eligibility criteria of this protocol, the clinical study will be briefly explained to the subject by the subject's physician, who will be a physician at the Brain Tumor Center at Duke.
- If the subject indicates interest in study participation, subject education sheets and the informed consent document will be provided to the subject as these provide the most comprehensive explanation of the study in lay terms.
- If the subject shows continued interest, the PI or designee will thoroughly explain the required elements of the consent form and all aspects of the study to the subject including inclusion/exclusion criteria, risks, benefits, and alternatives to study participation.
- Subjects will not be paid to take part in this research study.

The list of subjects pre-screened will be kept in an Excel spreadsheet in the study coordinator's office. The PC (personal computer) is on the DUHS (Duke University Health System) network protected by a user ID (identifier) and password and the office is locked when it is unoccupied. All screened subjects who are not enrolled in the study will have all identifiers destroyed immediately.

Study & Design

Study Type: INTERVENTIONAL

Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
1	Vorinostst/Bevacizumab/Temozolomide	Phase I- Bevacizumab will be administered intravenously every other week. Temozolomide will be administered on a continuous daily dosing schedule. Vorinostat will be administered daily on days 1-7 and 15-21 of each 28 day cycle. The dose of Vorinostat will be escalated in successive cohorts of patients to determine the MTD of this regimen.

Primary Outcome Measures

Name	Time	Method
Phase I: Determination of the Maximum Tolerated Dose (MTD)	Cycle 1 (28 days)	The MTD is based upon dose-limiting toxicities (DLTs) experienced during Cycle 1 of treatment. The MTD is the dose level at which 0/6 or 1/6 patients experience DLT with at least two patients experiencing DLT at the next higher dose level. Using Common Terminology Criteria for Adverse Events (CTCAE) version 3.0, DLTs are defined as: Grade 4 neutropenia lasting greater than 5 days; Grade 3 thrombocytopenia; the occurrence of non-hematologic Grade 3 or greater drug-related adverse events excluding Grade ≥ 3 elevation in alkaline phosphatase, Grade ≥ 3 nausea or vomiting unless occurring despite the use of standard anti-emetics or Grade 3 diarrhea unless occurring despite standard anti-diarrheal therapy; \> 14 day delay to re-treat due to failure to resolve drug-related toxicity to re-treatment criteria or pre-treatment baseline.
Phase II: 6-month Progression-free Survival (PFS)	6 months	Phase II: Percentage of participants surviving six months from the start of study treatment without progression of disease. PFS was defined as the time from the date of study treatment initiation to the date of the first documented progression according to RANO criteria, or to death due to any cause. Per RANO, progression is a ≥ 25% increase in the sum of the products of perpendicular diameters of enhancing lesions, any new lesion or clinical deterioration.

Secondary Outcome Measures

Name	Time	Method
Phase II: Radiographic Response.	3 years	The percentage of participants with a complete or partial response as determined by modified Response Assessment in Neuro-Oncology (RANO) criteria. A confirmation of response was not required. Complete Response (CR) was defined as complete disappearance on MR/CT of all enhancing tumor and mass effect, off all corticosteroids (or receiving only adrenal replacement doses) and accompanied by a stable or improving neurologic examination. Partial Response (PR) was defined as greater than or equal to 50% reduction in tumor size on MR/CT by bi-dimensional measurement, on a stable or decreasing dose of corticosteroids and accompanied by a stable or improving neurologic examination. Tumor assessments were done at baseline, the end of the first cycle (4 weeks), then the end of every second cycle (every 8 weeks) thereafter.
Phase II: Median Progression-free Survival (PFS)	3 years	Phase II: Time in months from the start of study treatment to the date of first progression according to RANO criteria, or to death due to any cause. Per RANO, progression is a ≥ 25% increase in the sum of the products of perpendicular diameters of enhancing lesions, any new lesion or clinical deterioration. Patients alive who had not progressed as of the last follow-up had PFS censored at the last follow-up date. Median PFS was estimated using a Kaplan-Meier curve.
Phase II: Median Overall Survival (OS)	3 years	Phase II: Time in months from the start of study treatment to date of death due to any cause. Patients alive as of the last follow-up had OS censored at the last follow-up date. Median OS was estimated using a Kaplan-Meier curve.
Phase II: Number of Patients With Grade 2 or Greater, Treatment-related Toxicities	3 years	Phase II: Number of patients with grade 2 or greater, treatment-related toxicities based on Common Terminology Criteria for Adverse Events (CTCAE) version 3.0.