Viewing Study NCT00508456



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Last Modification Date: 2024-10-26 @ 9:35 AM
Study NCT ID: NCT00508456
Status: TERMINATED
Last Update Posted: 2012-01-16
First Post: 2007-07-27

Brief Title: Dietary Methionine Restriction Plus Temozolomide for Recurrent GBM
Sponsor: MD Anderson Cancer Center
Organization: MD Anderson Cancer Center

Study Overview

Official Title: A Phase I Study of Dietary Methionine Restriction and Temodar Temozolomide for the Treatment of Recurrent and Progressive Glioblastoma Multiforme
Status: TERMINATED
Status Verified Date: 2012-01
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Low Accrual
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: Objectives

1 To determine the safety tolerability and efficacy of dietary methionine restriction for 7 days alternating with Temodar Temozolomide given once a day for seven days and this repeated for up to one year in the treatment of patients with recurrent andor progressive glioblastoma
2 To determine the short- and long-term toxicity of dietary methionine restriction combined with Temodar in glioblastoma patients
3 To measure and correlate patients tumor responses and progression-free survival with serum methionine and peripheral blood lymphocyte methylation levels In any patient undergoing surgery to measure tumor alkylguanyl transferase AGT and methionine levels and compare to control specimens
Detailed Description: Methionine is an essential amino acid Many solid tumors depend on the methionine that is taken in through the diet The tumors need methionine to grow A methionine free or reduced diet may help to shrink or slow the growth of some tumors Temozolomide is a drug that is commonly used in the treatment of glioma A methionine free or reduced diet may increase the effectiveness of temozolomide in the treatment of glioma

Before treatment you will have a complete physical exam and blood around 2 tablespoons will be collected for routine tests You will have either a magnetic resonance imaging MRI scan or a computed tomography CT scan of the brain Women who are able to have children must have a negative blood pregnancy test You will then meet with a study dietician The dietician will give you written instructions and make a food plan based on your needs The instructions and food plan will help you maintain a methionine-free or reduced diet during the study

During the study all participants will receive standard chemotherapy with temozolomide by mouth once a day at bedtime for 7 days on Days 8 through 14 and 22 through 28 every 28 days 4 weeks This 4-week period is called a cycle of chemotherapy This 4 week cycle will be repeated as long as the disease does not get worse

During treatment you will be asked to maintain a methionine free diet during Days 1 - 7 and Days 15 - 21 During the periods of methionine free diet you will consume only shakes containing Hominex-2 The Hominex-2 shakes are nutritionally complete and easy to prepare You will be given instructions on how to maintain this methionine-free diet

All participants enrolled in the study will consume a methionine free diet for 1 week alternating with temozolomide chemotherapy for 1 week The participants will then be switched to a methionine replete diet for 1 week while taking chemotherapy This diet and chemotherapy schedule will be continued for as long as the treatment is effective and tolerable This replete diet contains methionine The dietician will record what you eat to make sure you are eating the right amount of methionine during this period This 4-week schedule will be repeated as long as you are on the study

If you experience any intolerable side effects or the disease gets worse you will be taken off the study and your doctor will discuss other treatment options with you

During treatment you will have blood around 1 tablespoon collected every 2 weeks for routine tests Every 4 weeks for the first 16 weeks then every 8 weeks for the rest of the study you will have check up visits At these visits you will have a complete physical exam and have blood collected around 1 tablespoon for routine tests You will also have a dietary consultation Every 8 weeks during the study you will have either a MRI scan or a CT scan of the brain If your doctor feels it is necessary the tests may be done more often or you may have other tests as needed for your care

This is an investigational study Methionine restriction diet Hominex-2 Amino Acid-Modified Medical Food has been approved by the FDA for nutrition support of children and adults with vitamin B6-nonresponsive homocystinuria However its use in this study is investigational Temozolomide has been approved by the FDA for the treatment of brain tumors and is commercially available The use of this combination is experimental Forty-four participants will take part in this study

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None