Radiation Therapy With Concomitant and Adjuvant Temozolomide Versus Radiation Therapy With Adjuvant PCV Chemotherapy in Patients With Anaplastic Glioma or Low Grade Glioma
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|ClinicalTrials.gov Identifier: NCT00887146|
Recruitment Status : Recruiting
First Posted : April 23, 2009
Last Update Posted : August 17, 2021
|Condition or disease||Intervention/treatment||Phase|
|Brain and Central Nervous System Tumors||Drug: concomitant temozolomide (TMZ) Radiation: radiotherapy Drug: procarbazine Drug: adjuvant temozolomide (TMZ) Drug: CCNU Drug: vincristine||Phase 3|
This study will be a randomized phase III for patients with newly diagnosed co-deleted 1p/19q anaplastic glioma or high risk low grade glioma. The trial will only enroll patients with 1p/19q co-deletion. This study includes two arms as described in the "Arms" section. A dynamic allocation procedure will be used to allocate an equal number of patients to different arms (Arms A:B = 1:1). This procedure will balance the marginal distributions of the stratification factors among arms. The stratification factors that will be used are cooperative groups (EORTC vs. all North American groups), age (≤ 50 vs. > 50), performance score (ECOG 0-1 vs. 2), and tumor grade (anaplastic glioma vs. low grade glioma).
The primary goal is to determine whether patients who receive radiotherapy with concomitant temozolomide (TMZ) followed by adjuvant temozolomide (RT + TMZ --> TMZ) (Arm B) have a marginally better progression free survival (PFS) as compared with patients who receive radiotherapy followed by PCV chemotherapy (RT --> PCV)(Arm A).
- Time to Progression - To determine whether patients who receive (RT + TMZ --> TMZ) have a significantly longer time to progression (clinical or radiographic progression) as compared with patients who receive radiotherapy followed by adjuvant PCV chemotherapy (RT --> PCV).
- Correlation between exploratory biomarkers and survival - To determine whether there is a difference in survival based on t(1;19)(q10, p10) translocation status and MGMT promoter hypermethylation status.
- Descriptive Comparisons of Additional Secondary Endpoints - To perform descriptive comparisons of additional secondary outcome endpoints, including overall survival, objective tumor response, prognostic factor analysis and quality of life.
- Toxicity - To determine the toxicity of the treatment in each arm and perform descriptive comparisons.
- Neurocognitive and Quality of Life (QOL) Effects - To determine the neurocognitive and QOL effects in patients treated on this protocol and correlate these results with outcome endpoints.
- Banking of Biospecimens and Neuroimaging Studies - To store blood products (i.e., plasma, DNA and buffy coat), tumor tissue and MRI/CT images for future scientific investigations.
After completion of study treatment, patients are followed every 12 weeks for 1 year, then every 4 months for 2 years and then every 6 months until progressive disease or until the end of study participation.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||360 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||None (Open Label)|
|Official Title:||Phase III Intergroup Study of Radiotherapy With Concomitant and Adjuvant Temozolomide Versus Radiotherapy With Adjuvant PCV Chemotherapy in Patients With 1p/19q Co-deleted Anaplastic Glioma or Low Grade Glioma|
|Actual Study Start Date :||September 2009|
|Estimated Primary Completion Date :||October 2025|
Experimental: Arm A (RT, procarbazine, lomustine, vincristine)
Patients undergo 3D-CRT or IMRT on days 1-5 for 5-7 weeks. Patients also receive procarbazine hydrochloride PO on days 8-21, lomustine PO on day 1 and vincristine sulfate IV on days 8 and 29 of courses 3-8. Treatment repeats every 6-7 weeks for up to 6 courses in the absence of disease progression or unacceptable toxicity.
Days 8-21: 60 mg/m^2 orally
Day 1: 110 mg/m^2 orally
Days 8 and 29: 1.4 mg/m^2 IV
Experimental: Arm B (RT, temozolomide)
Patients undergo RT as in arm I and receive temozolomide PO QD on days 1-5 for 5-7 weeks. Beginning 4 weeks after completion of concurrent chemoradiotherapy, patients receive adjuvant temozolomide PO QD days 1-5. Treatment with adjuvant temozolomide repeats every 4 weeks for 6-12 courses in the absence of disease progression and unacceptable toxicity.
Drug: concomitant temozolomide (TMZ)
75 mg/m^2, orally daily
Drug: adjuvant temozolomide (TMZ)
150 or 200 mg/m^2 orally
- Progression-free survival [ Time Frame: Time from study registration to time of tumor progression or death due to any cause, whichever comes first, assessed up to 16 years ]The distribution of progression free survival for Arms A and B will be estimated using the Kaplan-Meier method. The hazard ratios and median progression free survival (PFS) will be estimated with their confidence intervals. The Cox proportional hazards model will be used to assess whether the distributions of progression survival times differ with respect to treatment regimen having adjusted for all stratification factors (cooperative groups, age, and performance score). Both non-inferiority and superiority will be tested in this trial for the primary goal and no multiple-comparison adjustment will be considered.
- Time to progression [ Time Frame: Time from study registration to the earliest evidence of clinical progression, radiographic progression or neurocognitive progression, assessed up to 16 years ]Estimated by Kaplan-Meier method and analyzed by Cox regression model adjusting all stratification factors. Correlations among baseline neurocognitive test scores and progression free survival will be analyzed using Cox proportional hazards model.
- Time to neurocognitive progression, assessed using the Hopkins Verbal Learning Test-Revised for Free Recall, Delayed Recall, and Delayed Recognition; the Controlled Oral Word Association test; and the Trail Making Test Part A or B [ Time Frame: Time from study registration to the first cognitive failure, assessed up to 16 years ]Estimated by Kaplan-Meier method and analyzed by Cox regression model adjusting all stratification factors. For each test in the battery, a standard error of measurement will be used to derive the Reliable Change Index (RCI) which will be used to represent the 90% confidence interval for the difference in raw scores from baseline to follow-up assessment will be coded as 1 (deterioration), 2 (no change), and 3 (improved) according to the RCI.
- Overall survival [ Time Frame: Time from study registration to time of death due to any cause, assessed up to 16 years ]The Cox proportional hazards model will be used to assess whether the distributions of overall survival times differ with respect to treatment regimen having adjusted for all stratification factors (cooperative groups, age, and Performance Score). The distribution of overall survival for Arm A and B will be estimated using the Kaplan-Meier method. The hazard ratios and median survivals will be estimated with their 95% confidence intervals.
- Objective tumor response defined as a complete response or partial response [ Time Frame: Up to 16 years ]Summarized for each arm and compared between the arms using the Chi square test.
- Treatment-related adverse events according to National Cancer Institute Common Terminology Criteria for Adverse Events version 4.0 [ Time Frame: Up to 16 years ]The maximum grade for each type of treatment-related adverse event will be recorded for each patient, and frequency tables for each arm will be reviewed to determine patterns. In addition, will review all adverse event data that is graded as 3, 4, or 5 and classified as either "unrelated" or "unlikely to be related" to study treatment in the event of an actual relationship developing. Adverse events and treatment-related adverse events will be evaluated using all patients. Treatment-related adverse events will be tabulated for each arm.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00887146
|Contact: Kurt Jaeckle, MD||904-953-7102|
|Study Chair:||Kurt Jaeckle, MD||Mayo Clinic|