Letrozole in Treating Women With Recurrent or Metastatic Endometrial Cancer

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00004251
Recruitment Status : Completed
First Posted : June 17, 2004
Last Update Posted : September 24, 2012
Information provided by (Responsible Party):
Canadian Cancer Trials Group ( NCIC Clinical Trials Group )

January 28, 2000
June 17, 2004
September 24, 2012
January 2000
September 2002   (Final data collection date for primary outcome measure)
Objective tumour response [ Time Frame: 3 years ]
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Complete list of historical versions of study NCT00004251 on Archive Site
  • duration of response and time to progression [ Time Frame: 3 years ]
  • toxicity [ Time Frame: 3 years ]
  • tumour response [ Time Frame: 3 years ]
    Correlation of tumour response with pre-treatment ER/PR status, histological grade and aromatase levels.
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Letrozole in Treating Women With Recurrent or Metastatic Endometrial Cancer
A Phase II Study of Letrozole in Patients With Advanced or Recurrent Endometrial Cancer

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 letrozole in treating women who have recurrent or metastatic endometrial cancer.

OBJECTIVES: I. Determine the efficacy of letrozole, in terms of objective tumor response and time to progression, in women with recurrent or metastatic endometrial cancer. II. Determine the toxicity of letrozole in these patients. III. Determine the relationship between tumor receptor status, histologic grade, tumor aromatase activity, and tumor response in these patients.

OUTLINE: Patients receive an oral letrozole tablet daily. Treatment continues for patients with complete or partial response until disease progression or unacceptable toxicity. Patients with stable disease may discontinue therapy after 24 weeks. Patients are followed at 1 month and then every 3 months until death.

PROJECTED ACCRUAL: Up to 30 patients will be accrued for this study within 12-18 months.

Phase 2
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Endometrial Cancer
Drug: letrozole
2.5 mg of letrozole per day
Experimental: Letrozole
Letrozole 2.5 mg po daily
Intervention: Drug: letrozole

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
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January 2011
September 2002   (Final data collection date for primary outcome measure)

DISEASE CHARACTERISTICS: Histologically proven, recurrent or metastatic, adenocarcinoma or adenosquamous carcinoma of the endometrium not curable by surgery and/or radiotherapy Failed one prior progestin therapy for advanced/metastatic disease OR Considered for letrozole as first line therapy of advanced/metastatic disease No clear cell or papillary serous histology, uterine sarcomas, mixed muellerian tumors, and/or adenosarcomas At least one site of measurable disease by clinical exam, CT, or MRI scan Bone lesion(s) are not considered measurable No CNS metastases

PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-2 Menopausal status: Postmenopausal (surgical or natural) Life expectancy: At least 12 weeks Hematopoietic: Absolute granulocyte count at least 1,500/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin less than upper limit of normal (ULN) AST or ALT no greater than 2 times ULN Alkaline phosphatase less than 2 times ULN Renal: Creatinine no greater than 2 times ULN Other: No other malignancy within the past 5 years, except: Adequately treated basal or squamous cell skin cancer Carcinoma in situ of the cervix No other concurrent medical illness that would preclude compliance

PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: No prior chemotherapy for advanced/metastatic disease At least 4 weeks since prior adjuvant chemotherapy Endocrine therapy: See Disease Characteristics No more than one prior progestational hormone therapy regimen for advanced/metastatic disease At least 1 week since prior hormonal therapy No prior tamoxifen or other aromatase inhibitor therapy Radiotherapy: See Disease Characteristics At least 4 weeks since prior radiotherapy Concurrent radiotherapy for symptomatic metastatic lesions allowed Surgery: See Disease Characteristics Other: No other concurrent anticancer therapy No other concurrent investigational therapy

Sexes Eligible for Study: Female
18 Years and older   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
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CDR0000067498 ( Other Identifier: PDQ )
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Canadian Cancer Trials Group ( NCIC Clinical Trials Group )
NCIC Clinical Trials Group
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Study Chair: Anthony Fyles, MD Princess Margaret Hospital, Canada
Canadian Cancer Trials Group
July 2012

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP