RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die.

PURPOSE: Phase II trial to study the effectiveness of temozolomide in treating patients who have unresectable or metastatic gastrointestinal stromal tumors.

Condition	Treatment or Intervention	Phase
gastrointestinal stromal tumor	Drug: temozolomide  Procedure: chemotherapy	Phase II

Further Study Details: 

OBJECTIVES:

• Determine the complete and partial response (confirmed and unconfirmed) in patients with unresectable or metastatic gastrointestinal stromal tumors treated with temozolomide.
• Determine the qualitative or quantitative toxic effects of this regimen in these patients.

OUTLINE: This is a multicenter study.

Patients receive oral temozolomide once daily on days 1-5. Treatment repeats every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients achieving a confirmed complete response (CR) receive 2 additional courses after a confirmed CR.

Patients are followed every 3 months for 1 year and then every 6 months for 2 years.

PROJECTED ACCRUAL: A total of 20-40 patients will be accrued for this study within 13-27 months.

Genders Eligible for Study:  Both

Criteria

DISEASE CHARACTERISTICS:

• Histologically or cytologically confirmed unresectable or metastatic gastrointestinal stromal tumor (GIST)
• Primary (gastrointestinal or intra-abdominal origin) tumor
• At least 1 measurable lesion by x-ray, CT, MRI, ultrasound, or physical examination
• If lesions within prior radiation port are used as target lesions for response assessment, those lesions must have demonstrated clear progression after completion of radiotherapy
• No uterine or retroperitoneal sarcomas or non-intraabdominal leiomyosarcomas

PATIENT CHARACTERISTICS: Age:

• Not specified

Performance status:

• Zubrod 0-2

Life expectancy:

• Not specified

Hematopoietic:

• WBC at least 3,000/mm^3
• Platelet count at least 100,000/mm^3

Hepatic:

• Bilirubin no greater than 2 times upper limit of normal (ULN)

Renal:

• Creatinine no greater than 1.5 times ULN

Other:

• Not pregnant or nursing
• Negative pregnancy test
• Fertile patients must use effective contraception
• No medical or psychological conditions that would preclude study participation
• No major infection requiring systemic antibiotics
• No uncontrolled bacterial, viral, or fungal infection
• No other prior malignancy within the past 5 years except:
• Adequately treated basal cell or squamous cell skin cancer
• Adequately treated stage I or II cancer in complete remission
• Carcinoma in situ of the cervix

PRIOR CONCURRENT THERAPY: Biologic therapy:

• At least 30 days since prior biologic therapy
• Prior imatinib mesylate as adjuvant therapy or for metastatic disease allowed

Chemotherapy:

• No prior chemotherapy for GIST
• At least 30 days since other prior chemotherapy

Endocrine therapy:

• Not specified

Radiotherapy:

• See Disease Characteristics
• No prior radiotherapy for GIST
• No concurrent radiotherapy for GIST
• Concurrent palliative radiotherapy for painful metastases (encompassing a total portal of no greater than 5 x 5 cm) allowed

Surgery:

• See Disease Characteristics
• At least 4 weeks since prior major surgery and recovered

Other:

• At least 30 days since prior investigational drugs

Alabama
      MBCCOP - Gulf Coast, Mobile,  Alabama,  36688,  United States
Arizona
      Arizona Cancer Center at University of Arizona Health Sciences Center, Tucson,  Arizona,  85724,  United States
      CCOP - Western Regional, Arizona, Phoenix,  Arizona,  85006-2726,  United States
      Veterans Affairs Medical Center - Phoenix (Carl T. Hayden), Phoenix,  Arizona,  85012,  United States
      Veterans Affairs Medical Center - Tucson, Tucson,  Arizona,  85723,  United States
Arkansas
      University of Arkansas for Medical Sciences, Little Rock,  Arkansas,  72205,  United States
      Veterans Affairs Medical Center - Little Rock (McClellan), Little Rock,  Arkansas,  72205,  United States
California
      CCOP - Bay Area Tumor Institute, Oakland,  California,  94609-3305,  United States
      CCOP - Santa Rosa Memorial Hospital, Santa Rosa,  California,  95403,  United States
      Chao Family Comprehensive Cancer Center, Orange,  California,  92868,  United States
      City of Hope Comprehensive Cancer Center, Duarte,  California,  91010,  United States
      David Grant Medical Center, Travis Air Force Base,  California,  94535,  United States
      Jonsson Comprehensive Cancer Center, UCLA, Los Angeles,  California,  90095-1781,  United States
      UCSF Comprehensive Cancer Center, San Francisco,  California,  94143-0128,  United States
      University of California Davis Cancer Center, Sacramento,  California,  95817,  United States
      USC/Norris Comprehensive Cancer Center and Hospital, Los Angeles,  California,  90033-0804,  United States
      Veterans Affairs Medical Center - Long Beach, Long Beach,  California,  90822,  United States
      Veterans Affairs Medical Center - West Los Angeles, Los Angeles,  California,  90073,  United States
      Veterans Affairs Outpatient Clinic - Martinez, Martinez,  California,  94553,  United States
Colorado
      University of Colorado Cancer Center at University of Colorado Health Sciences Center, Denver,  Colorado,  80010,  United States
      Veterans Affairs Medical Center - Denver, Denver,  Colorado,  80220,  United States
District of Columbia
      MBCCOP - Howard University Cancer Center, Washington,  District of Columbia,  20060,  United States
Georgia
      CCOP - Atlanta Regional, Atlanta,  Georgia,  30342-1701,  United States
      Dwight David Eisenhower Army Medical Center, Fort Gordon,  Georgia,  30905-5650,  United States
Hawaii
      Cancer Research Center of Hawaii, Honolulu,  Hawaii,  96813-2424,  United States
      MBCCOP - Hawaii, Honolulu,  Hawaii,  96813,  United States
      Tripler Army Medical Center, Honolulu,  Hawaii,  96859-5000,  United States
Illinois
      CCOP - Central Illinois, Decatur,  Illinois,  62526,  United States
      Loyola University Medical Center, Maywood,  Illinois,  60153-5500,  United States
      MBCCOP - University of Illinois at Chicago, Chicago,  Illinois,  60612-7323,  United States
      Veterans Affairs Medical Center - Chicago (Westside Hospital), Chicago,  Illinois,  60612,  United States
      Veterans Affairs Medical Center - Hines (Hines Junior VA Hospital), Hines,  Illinois,  60141,  United States
Kansas
      CCOP - Wichita, Wichita,  Kansas,  67214-3882,  United States
      University of Kansas Medical Center, Kansas City,  Kansas,  66160-7353,  United States
      Veterans Affairs Medical Center - Wichita, Wichita,  Kansas,  67218,  United States
Kentucky
      Albert B. Chandler Medical Center, University of Kentucky, Lexington,  Kentucky,  40536-0084,  United States
      Veterans Affairs Medical Center - Lexington, Lexington,  Kentucky,  40502-2236,  United States
Louisiana
      Louisiana State University Health Sciences Center - Shreveport, Shreveport,  Louisiana,  71130-3932,  United States
      MBCCOP - LSU Health Sciences Center, New Orleans,  Louisiana,  70112,  United States
      Tulane University School of Medicine, New Orleans,  Louisiana,  70112,  United States
      Veterans Affairs Medical Center - New Orleans, New Orleans,  Louisiana,  70112,  United States
      Veterans Affairs Medical Center - Shreveport, Shreveport,  Louisiana,  71130,  United States
Massachusetts
      Boston Medical Center, Boston,  Massachusetts,  02118,  United States
      Veterans Affairs Medical Center - Boston (Jamaica Plain), Jamaica Plain,  Massachusetts,  02130,  United States
Michigan
      Barbara Ann Karmanos Cancer Institute, Detroit,  Michigan,  48201-1379,  United States
      CCOP - Beaumont, Royal Oak,  Michigan,  48073-6769,  United States
      CCOP - Grand Rapids, Grand Rapids,  Michigan,  49503,  United States
      CCOP - Michigan Cancer Research Consortium, Ann Arbor,  Michigan,  48106,  United States
      Henry Ford Hospital, Detroit,  Michigan,  48202,  United States
      Providence Hospital - Southfield, Southfield,  Michigan,  48075-9975,  United States
      University of Michigan Comprehensive Cancer Center, Ann Arbor,  Michigan,  48109-0912,  United States
      Veterans Affairs Medical Center - Ann Arbor, Ann Arbor,  Michigan,  48105,  United States
      Veterans Affairs Medical Center - Detroit, Detroit,  Michigan,  48201-1932,  United States
Minnesota
      CCOP - Duluth, Duluth,  Minnesota,  55805,  United States
Mississippi
      University of Mississippi Medical Center, Jackson,  Mississippi,  39216-4505,  United States
      Veterans Affairs Medical Center - Biloxi, Biloxi,  Mississippi,  39531-2410,  United States
      Veterans Affairs Medical Center - Jackson, Jackson,  Mississippi,  39216,  United States
Missouri
      CCOP - Cancer Research for the Ozarks, Springfield,  Missouri,  65807,  United States
      CCOP - Kansas City, Kansas City,  Missouri,  64131,  United States
      CCOP - St. Louis-Cape Girardeau, Saint Louis,  Missouri,  63141,  United States
      St. Louis University Health Sciences Center, Saint Louis,  Missouri,  63110,  United States
      Veterans Affairs Medical Center - Kansas City, Kansas City,  Missouri,  64128,  United States
Montana
      CCOP - Montana Cancer Consortium, Billings,  Montana,  59101,  United States
New Mexico
      MBCCOP - University of New Mexico HSC, Albuquerque,  New Mexico,  87131,  United States
      Veterans Affairs Medical Center - Albuquerque, Albuquerque,  New Mexico,  87108-5138,  United States
New York
      Herbert Irving Comprehensive Cancer Center at Columbia University, New York,  New York,  10032,  United States
      James P. Wilmot Cancer Center at University of Rochester Medical Center, Rochester,  New York,  14642,  United States
      Veterans Affairs Medical Center - Albany, Albany,  New York,  12208,  United States
North Carolina
      CCOP - Southeast Cancer Control Consortium, Winston Salem,  North Carolina,  27104-4241,  United States
Ohio
      Barrett Cancer Center, Cincinnati,  Ohio,  45267-0501,  United States
      CCOP - Columbus, Columbus,  Ohio,  43206,  United States
      CCOP - Dayton, Dayton,  Ohio,  45429,  United States
      CCOP - Toledo Community Hospital, Toledo,  Ohio,  43623-3456,  United States
      Cleveland Clinic Taussig Cancer Center, Cleveland,  Ohio,  44195-9001,  United States
      Veterans Affairs Medical Center - Cincinnati, Cincinnati,  Ohio,  45220-2288,  United States
      Veterans Affairs Medical Center - Dayton, Dayton,  Ohio,  45428,  United States
Oklahoma
      University of Oklahoma Health Sciences Center, Oklahoma City,  Oklahoma,  73104,  United States
      Veterans Affairs Medical Center - Oklahoma City, Oklahoma City,  Oklahoma,  73104,  United States
Oregon
      CCOP - Columbia River Oncology Program, Portland,  Oregon,  97225,  United States
      Oregon Cancer Institute, Portland,  Oregon,  97201-3098,  United States
      Veterans Affairs Medical Center - Portland, Portland,  Oregon,  97207,  United States
South Carolina
      CCOP - Greenville, Greenville,  South Carolina,  29615,  United States
      CCOP - Upstate Carolina, Spartanburg,  South Carolina,  29303,  United States
      Hollings Cancer Center at Medical University of South Carolina, Charleston,  South Carolina,  29425,  United States
      Veterans Affairs Medical Center - Charleston, Charleston,  South Carolina,  29401-5799,  United States
Tennessee
      Danville Radiation Therapy Center, Memphis,  Tennessee,  38104,  United States
      University of Tennessee Cancer Institute, Memphis,  Tennessee,  38103,  United States
Texas
      Brooke Army Medical Center, Fort Sam Houston,  Texas,  78234-6200,  United States
      CCOP - Scott and White Hospital, Temple,  Texas,  76508,  United States
      Harrington Cancer Center, Amarillo,  Texas,  79106,  United States
      University of Texas Health Science Center at San Antonio, San Antonio,  Texas,  78229-3900,  United States
      University of Texas Medical Branch, Galveston,  Texas,  77555-0565,  United States
      Veterans Affairs Medical Center - Amarillo, Amarillo,  Texas,  79106,  United States
      Veterans Affairs Medical Center - Dallas, Dallas,  Texas,  75216,  United States
      Veterans Affairs Medical Center - Houston, Houston,  Texas,  77030,  United States
      Veterans Affairs Medical Center - San Antonio (Murphy), San Antonio,  Texas,  78229,  United States
      Veterans Affairs Medical Center - Temple, Temple,  Texas,  76504,  United States
Utah
      Huntsman Cancer Institute, Salt Lake City,  Utah,  84112-5550,  United States
      Veterans Affairs Medical Center - Salt Lake City, Salt Lake City,  Utah,  84148,  United States
Vermont
      Fletcher Allen Health Care - University Health Center Campus, Burlington,  Vermont,  05401,  United States
Virginia
      MBCCOP - Massey Cancer Center, Richmond,  Virginia,  23298-0037,  United States
Washington
      CCOP - Northwest, Tacoma,  Washington,  98405-0986,  United States
      CCOP - Virginia Mason Research Center, Seattle,  Washington,  98101,  United States
      Madigan Army Medical Center, Tacoma,  Washington,  98431-5000,  United States
      Swedish Cancer Institute at Swedish Medical Center - First Hill Campus, Seattle,  Washington,  98104,  United States
      Veterans Affairs Medical Center - Seattle, Seattle,  Washington,  98108,  United States

Study chairs or principal investigators

Mark Michael Zalupski, MD,  Study Chair,  University of Michigan Comprehensive Cancer Center   

Study ID Numbers:  CDR0000067710; SWOG-S9926
Record last reviewed:  December 2003
Last Updated:  October 13, 2004
Record first received:  May 2, 2000
ClinicalTrials.gov Identifier:  NCT00005597
Health Authority: Unspecified
ClinicalTrials.gov processed this record on 2005-04-08