- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00343616
Cognitive Function in Postmenopausal Women With Breast Cancer Receiving Hormone Therapy on Clinical Trial IBCSG-1-98
Investigating Cognitive Function for Patients Participating in the BIG Trial 1-98 in Select Centers
RATIONALE: Studying cognitive function, such as thinking, attention, concentration, and memory, in postmenopausal women receiving hormone therapy for breast cancer may help improve quality of life and the ability to plan treatment for cancer.
PURPOSE: This phase III trial is studying cognitive function in postmenopausal women with breast cancer receiving hormone therapy on clinical trial IBCSG-1-98.
Study Overview
Status
Conditions
Detailed Description
OBJECTIVES:
Primary
- Compare cognitive function in postmenopausal women with breast cancer who have received 5 years of adjuvant tamoxifen vs letrozole on protocol IBCSG-1-98.
Secondary
- Compare cognitive function in patients who have received a single hormonal therapy for 5 years vs those who have received that same hormonal therapy for 3 years, having previously received an alternate hormonal therapy for 2 years.
- Compare improvement in cognitive function 1 year after cessation of adjuvant hormonal therapy.
- Compare changes in cognitive function in patients who have received prior adjuvant chemotherapy vs those who have not received adjuvant chemotherapy.
- Assess the relationship between objective and subjective measures of cognitive function, including specific cognitive domains.
- Assess the relationship between cognitive function and psychological distress, fatigue, and quality of life.
OUTLINE: This is a longitudinal, multicenter study.
Patients undergo cognitive function testing and complete self-reported questionnaires regarding cognitive ability, quality of life, fatigue, and psychosocial status during the fifth year of adjuvant hormonal therapy on protocol IBCSG-1-98 and then during the sixth year* (post randomization on protocol IBCSG-1-98) (i.e., after completion of adjuvant hormonal therapy).
NOTE: *Patients who receive extended letrozole, hormone replacement therapy, or other endocrine therapy beyond 5 years do not undergo the 6-year assessment.
PROJECTED ACCRUAL: A total of 148 patients will be accrued for this study.
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
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New South Wales
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Randwick, New South Wales, Australia, 2031
- Institute of Oncology at Prince of Wales Hospital
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Victoria
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East Melbourne, Victoria, Australia, 3002
- Peter MacCallum Cancer Centre
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Fitzroy, Victoria, Australia, 3065
- St. Vincent's Hospital - Melbourne
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Malvern, Victoria, Australia, 3144
- Cabrini Hospital
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Brussels, Belgium, 1000
- Institut Jules Bordet
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Milan, Italy, 20141
- European Institute of Oncology
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Auckland, New Zealand, 1
- Auckland City Hospital
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Basel, Switzerland, CH-4031
- Universitaetsspital-Basel
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Bellinzona, Switzerland, CH-6500
- Oncology Institute of Southern Switzerland
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Bern, Switzerland, CH-3008
- International Breast Cancer Study Group
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St. Gallen, Switzerland, CH-9007
- Kantonsspital - St. Gallen
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Scotland
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Dundee, Scotland, United Kingdom, DD1 9SY
- Ninewells Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
DISEASE CHARACTERISTICS:
Enrolled in protocol IBCSG-1-98
- Must be in the fifth year of study treatment (i.e., still receiving tamoxifen or letrozole)
- No breast cancer recurrence or second malignancy
- Patients who received 2-4½ years of tamoxifen and have chosen to switch to letrozole to complete 5 years of treatment on protocol IBCSG-1-98 are not eligible
Hormone receptor status
- Estrogen receptor- and/or progesterone receptor-positive tumor
PATIENT CHARACTERISTICS:
- Female
- Postmenopausal
PRIOR CONCURRENT THERAPY:
- See Disease Characteristics
- No concurrent hormone replacement therapy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
|---|---|
|
Experimental: Tamoxifen for 5 years
Patients treated with tamoxifen for 5 years after randomization.
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Cognitive function will be assessed using the CogState battery and the Cognitive Failures Questionnaire.
Fatigue will be evaluated using the Brief Fatigue Inventory.
Psychologic distress will be evaluated using the General Health Questionnaire after cognitive testing.
Quality of life will be assessed using global linear analogue self-assessment (LASA) indicators for physical well-being, mood, coping effort (PACIS), perceived social support and subjective health estimation.
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Experimental: Letrozole for 5 years
Patients treated with letrozole for 5 years after randomization.
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Cognitive function will be assessed using the CogState battery and the Cognitive Failures Questionnaire.
Fatigue will be evaluated using the Brief Fatigue Inventory.
Psychologic distress will be evaluated using the General Health Questionnaire after cognitive testing.
Quality of life will be assessed using global linear analogue self-assessment (LASA) indicators for physical well-being, mood, coping effort (PACIS), perceived social support and subjective health estimation.
|
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Experimental: Tamoxifen 2 years plus letrozole 3 years
Patients treated with tamoxifen for 2 years and afterwards with letrozole for 3 years.
|
Cognitive function will be assessed using the CogState battery and the Cognitive Failures Questionnaire.
Fatigue will be evaluated using the Brief Fatigue Inventory.
Psychologic distress will be evaluated using the General Health Questionnaire after cognitive testing.
Quality of life will be assessed using global linear analogue self-assessment (LASA) indicators for physical well-being, mood, coping effort (PACIS), perceived social support and subjective health estimation.
|
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Experimental: Letrozole for 2 years plus tamoxifen for 3 years
Patients treated with letrozole for 2 years and afterwards with tamoxifen for 3 years.
|
Cognitive function will be assessed using the CogState battery and the Cognitive Failures Questionnaire.
Fatigue will be evaluated using the Brief Fatigue Inventory.
Psychologic distress will be evaluated using the General Health Questionnaire after cognitive testing.
Quality of life will be assessed using global linear analogue self-assessment (LASA) indicators for physical well-being, mood, coping effort (PACIS), perceived social support and subjective health estimation.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
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Objective cognitive function as measured by the CogState battery
Time Frame: 6 years after randomization
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6 years after randomization
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
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Subjective cognitive function as measured by the Cognitive Failures Questionnaire (CFQ)
Time Frame: 6 years after randomization
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6 years after randomization
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Psychological distress as measured by the General Health Questionnaire (GHQ)
Time Frame: 6 years after randomization
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6 years after randomization
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Fatigue as measured by the Brief Fatigue Inventory (BFI)
Time Frame: 6 years after randomization
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6 years after randomization
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Quality of life as measured by the IBCSG QL Core Form
Time Frame: 6 years after randomization
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6 years after randomization
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Collaborators and Investigators
Sponsor
Investigators
- Study Chair: Kelly-Anne Phillips, Peter MacCallum Cancer Centre, Australia
- Study Chair: Juerg Bernhard, PhD, ETOP IBCSG Partners Foundation
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CDR0000482396
- NOVARTIS-2026703019 (Other Identifier: Novartis)
- IBCSG-18-98-CFS
- IBCSG-1-98-CFS
- EU-20624
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