NRR: Studying Blood Samples From Women With Breast Cancer or Ductal Carcinoma In Situ Who Are Receiving Tamoxifen

Sponsor
UNC Lineberger Comprehensive Cancer Center (Other)
Overall Status
Completed
CT.gov ID
NCT00764322
Collaborator
National Cancer Institute (NCI) (NIH)
501
7
2
36.4
71.6
2

Study Details

Study Description

Brief Summary

RATIONALE: Studying samples of blood from patients with cancer in the laboratory may help doctors learn more about differences in DNA and predict how well patients will respond to treatment and plan better treatment.

PURPOSE: This clinical trial is studying blood samples from women with breast cancer or ductal carcinoma in situ who are receiving tamoxifen.

Condition or Disease Intervention/Treatment Phase
  • Drug: tamoxifen citrate
  • Genetic: gene expression analysis
  • Other: pharmacogenomic studies
  • Other: questionnaire administration
  • Procedure: quality-of-life assessment
Phase 2

Detailed Description

OBJECTIVES:

Primary

  • To evaluate the change in endoxifen levels after an increase in tamoxifen citrate dose from 20 mg to 40 mg in women with breast cancer or ductal breast carcinoma in situ with intermediate-metabolizing CYP2D6 genotypes.

Secondary

  • To evaluate the tolerability of increasing the dose of tamoxifen citrate from 20 to 40 mg per day in these patients.

  • To assess the feasibility of obtaining pharmacogenomic information from patients in the clinical setting and using it to guide changes in therapy.

  • To examine CYP2D6 allele frequencies and endoxifen levels among African-American women taking tamoxifen citrate.

  • To evaluate the change in plasma endoxifen levels after an increase in the tamoxifen citrate dose from 20 mg to 40 mg daily in patients with poor-metabolizing genotypes.

  • To study patient understanding of pharmacogenomics and obstacles to participation in clinical trials based upon germline DNA.

OUTLINE: This is a multicenter study.

Blood samples are collected at baseline to determine CYP2D6 genotype and tamoxifen citrate metabolic status: poor-metabolizing (PM), intermediate-metabolizing (IM), or extensive-metabolizing (EM) alleles. Samples are also analyzed for plasma levels of endoxifen and N-desmethyltamoxifen and for endoxifen/N-desmethyltamoxifen ratio. Patients found to be IM or PM are notified to increased tamoxifen citrate to 40 mg/day for 4 months (in the absence of unacceptable toxicity) with repeat endoxifen and N-desmethyltamoxifen levels (and the ratio) at the end of this time.

All patients complete Quality Of Life (QOL) and Menopausal Symptoms Scale (MSS) questionnaires at baseline and after 4 months of treatment. Toxicities are assessed at the end of 4 months. Patients undergo repeat questionnaire assessment of their understanding of the use of pharmacogenomics in clinical decision-making. Some patients also undergo a 30-minute, baseline interview regarding attitudes and experience towards participation in a pharmacogenomics study.

Patients who choose to be informed of the results of their genotyping are contacted by letter, along with their physicians, and offered genetic counseling to discuss the significance of these results.

After completion of study therapy, patients are followed at 3-6 months, including toxicity assessment and QOL and MSS questionnaires.

Study Design

Study Type:
Interventional
Actual Enrollment :
501 participants
Allocation:
Non-Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
Validating CYP2D6 Genotype-Guided Tamoxifen Therapy for a Multiracial U.S. Population
Study Start Date :
Jun 18, 2008
Actual Primary Completion Date :
Sep 28, 2010
Actual Study Completion Date :
Jul 1, 2011

Arms and Interventions

Arm Intervention/Treatment
Experimental: Tamoxifen 20

One arm, containing the ultra-rapid and extensive metabolizer genotypes, continues treatment with tamoxifen at 20mg.

Drug: tamoxifen citrate
Women found to be IM or PM will undergo increased tamoxifen to 40 mg/day (20 mg bid). Drug is given orally on a daily basis.
Other Names:
  • Nolvadex
  • Soltamox
  • Genetic: gene expression analysis
    Genetic analysis of blood sample.

    Other: pharmacogenomic studies
    Genetic analysis of blood sample.

    Other: questionnaire administration
    Questionnaire called the survey of participants. Questionnaires is self administered on paper documents and given pre-study, and at 4 months

    Procedure: quality-of-life assessment
    Self administration of a multiquestion questionnaire called the Functional Assessment of Cancer Therapy -Breast (FACT-B). Given pre-study, at 4 months and at 8-10 months.

    Active Comparator: Tamoxifen 40

    This arm, containing the intermediate and poor metabolizer genotypes, receives escalated treatment with tamoxifen at 40mg.

    Drug: tamoxifen citrate
    Women found to be IM or PM will undergo increased tamoxifen to 40 mg/day (20 mg bid). Drug is given orally on a daily basis.
    Other Names:
  • Nolvadex
  • Soltamox
  • Genetic: gene expression analysis
    Genetic analysis of blood sample.

    Other: pharmacogenomic studies
    Genetic analysis of blood sample.

    Other: questionnaire administration
    Questionnaire called the survey of participants. Questionnaires is self administered on paper documents and given pre-study, and at 4 months

    Procedure: quality-of-life assessment
    Self administration of a multiquestion questionnaire called the Functional Assessment of Cancer Therapy -Breast (FACT-B). Given pre-study, at 4 months and at 8-10 months.

    Outcome Measures

    Primary Outcome Measures

    1. Endoxifen Concentrations in Participants Receiving Tamoxifen Citrate Dose of 20 mg or 40 mg Stratified by the Metabolizing CYP2D6 Genotypes [4 months]

      Measurements of plasma concentrations of the key active metabolite of tamoxifen, endoxifen, were measured at baseline and after 4 months of treatment; The most common CYP2D6 alleles have been grouped by functional activity classifications with descending activity: ultra-rapid (UM), extensive (EM), intermediate (IM) or poor (PM) metabolism. A given patient has two alleles, giving them 10 possible allelic combinations, or diplotypes (UM/UM, UM/EM, EM/EM, etc.). These diplotypes are collapsed into four phenotypes, UM, EM, IM or PM.

    Secondary Outcome Measures

    1. Number of Participants With Pulmonary Embolism (PE), Deep Vein Thrombosis (DVT), Stroke, and/or Endometrial Cancer [Approximately ten months from registration to last follow-up]

      The doubling of tamoxifen dose is defined as "unacceptable" (i.e., not tolerable) if the prevalence of Pulmonary embolism (PE), Deep vein thrombosis (DVT), stroke, or endometrial cancer, either individually or in any combination, is greater than 2%.

    2. Change in Median Endoxifen Concentrations to Determine Feasibility of Obtaining Pharmacogenomic Information From Patients in the Clinical Setting and Using it to Guide Changes in Therapy [Baseline and 4 months after dose increase]

      If the key active tamoxifen metabolite, endoxifen, could be significantly increased by genotype-guided tamoxifen dosing in patients with intermediate CYP2D6 metabolism (by increasing tamoxifen dosing based on CYP2D6 genotype), then the study would be deemed feasible and the accrual expanded.

    3. CYP2D6 Allele Frequencies and Endoxifen Levels Among African-American Women Taking Tamoxifen Citrate [baseline]

      Mean endoxifen levels by CYP2D6 genotype among African Americans. Measurements of plasma concentrations of the key active metabolite of tamoxifen, endoxifen, were measured at baseline.The most common CYP2D6 alleles have been grouped by functional activity classifications with descending activity: ultra-rapid (UM), extensive (EM), intermediate (IM) or poor (PM) metabolism. A given patient has two alleles, giving them 10 possible allelic combinations, or diplotypes (UM/UM, UM/EM, EM/EM, etc.). These diplotypes are collapsed into four phenotypes, UM, EM, IM or PM.

    4. Change in Plasma Endoxifen Levels After an Increase in Tamoxifen Citrate Dose From 20 mg to 40 mg Daily in Patients With Poor-metabolizing Genotypes [Baseline and 4 months after dose increase]

      The intrapatient change in median endoxifen levels were calculated between baseline and 4 months after the increase in dose of Tamoxifen from 20mg/day to 40 mg/day

    5. Patient Understanding of Pharmacogenomics [baseline]

      To examine patients' beliefs about how hypothetical genotype information would affect their perceived recurrence risk and benefits of tamoxifen therapy, participants were given experimentally manipulated 6 vignettes to describe hypothetical tamoxifen treatment (no or yes) and hypothetical genotype (EM, IM or PM). For each vignette, participants gave their perceived recurrence risk (RR; 0-100%)

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    21 Years to 120 Years
    Sexes Eligible for Study:
    Female
    Accepts Healthy Volunteers:
    No
    Inclusion:

    Histologically confirmed invasive carcinoma of the breast or ductal breast carcinoma in situ Has been receiving tamoxifen citrate at a dose of 20 mg/day for at least 4 months either for the treatment of invasive or non-invasive carcinoma of the breast or for breast cancer recurrence prevention

    • Expected duration of tamoxifen citrate treatment at least 6 months Hormone receptor status not specified Concurrent participation in non-treatment studies allowed provided it will not interfere with participation in this study Menopausal status not specified Eastern Cooperative Oncology Group (ECOG) performance status 0-2 Life expectancy ≥ 6 months Absolute Neutrophil Count (ANC) ≥ 1.0 x 109/L Platelet count ≥ 100 x 109/L Aspartate Aminotransferase (AST) and Alanine Aminotransferase (ALT) ≤ 2.5 times Upper Limit of Normal (ULN) Total bilirubin ≤ 2.5 times ULN Creatinine clearance ≥ 50 mL/min Fertile patients must use effective contraception
    PRIOR CONCURRENT THERAPY:
    • No limitations to number of prior therapies

    • No limitations for prior radiotherapy

    • More than 14 days since prior and no other concurrent investigational agent

    Exclusion:

    Not pregnant or nursing No active, serious infection or medical or psychiatric illness likely to preclude study participation No psychiatric conditions that would preclude study compliance or informed consent No history of venous thromboembolism, transient ischemic attack, or cerebral vascular accident No history of allergic reaction to tamoxifen citrate or any of its reagents No concurrent coumadin

    No concurrent medications known to inhibit CYP2D6, including any of the following:
    • Amiodarone

    • Haloperidol

    • Indinavir

    • Ritonavir

    • Quinidine

    No concurrent selective serotonin reuptake inhibitors, except the following:
    • Venlafaxine

    • Citalopram

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Lineberger Comprehensive Cancer Center at University of North Carolina - Chapel Hill Chapel Hill North Carolina United States 27599-7295
    2 Blumenthal Cancer Center at Carolinas Medical Center Charlotte North Carolina United States 28232-2861
    3 Duke Comprehensive Cancer Center Durham North Carolina United States 27710
    4 Moses Cone Regional Cancer Center at Wesley Long Community Hospital Greensboro North Carolina United States 27403-1198
    5 Leo W. Jenkins Cancer Center at ECU Medical School Greenville North Carolina United States 27834
    6 Rex Cancer Center at Rex Hospital Raleigh North Carolina United States 27607
    7 Gibbs Regional Cancer Center at Spartanburg Regional Medical Center Spartanburg South Carolina United States 29303

    Sponsors and Collaborators

    • UNC Lineberger Comprehensive Cancer Center
    • National Cancer Institute (NCI)

    Investigators

    • Principal Investigator: Lisa A. Carey, MD, UNC Lineberger Comprehensive Cancer Center
    • Principal Investigator: William J. Irvin, MD, Bon Secours Virginia Health System / Bon Secours Cancer Institute

    Study Documents (Full-Text)

    None provided.

    More Information

    Additional Information:

    Publications

    None provided.
    Responsible Party:
    UNC Lineberger Comprehensive Cancer Center
    ClinicalTrials.gov Identifier:
    NCT00764322
    Other Study ID Numbers:
    • LCCC 0801
    • P30CA016086
    • 08-0483
    First Posted:
    Oct 2, 2008
    Last Update Posted:
    Aug 1, 2017
    Last Verified:
    Jul 1, 2017
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Keywords provided by UNC Lineberger Comprehensive Cancer Center
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details Participants were recruited from breast cancer patients at Lineberger Comprehensive Cancer Center who had received tamoxifen for at least 4 months.
    Pre-assignment Detail One patient was a screen failure
    Arm/Group Title Patients Enrolled
    Arm/Group Description
    Period Title: Overall Study
    STARTED 500
    COMPLETED 480
    NOT COMPLETED 20

    Baseline Characteristics

    Arm/Group Title Extensive and Ultra-rapid Metabolizers Intermediate and Poor Metabolizers Total
    Arm/Group Description Those with the highest endoxifen concentrations as measured at baseline. Genotype-guided escalation of the tamoxifen dose from 20mg to 40mg/day. Total of all reporting groups
    Overall Participants 161 319 480
    Age (years) [Median (Full Range) ]
    Median
    51
    50
    50
    Sex: Female, Male (Count of Participants)
    Female
    161
    100%
    319
    100%
    480
    100%
    Male
    0
    0%
    0
    0%
    0
    0%
    Race (NIH/OMB) (Count of Participants)
    American Indian or Alaska Native
    0
    0%
    0
    0%
    0
    0%
    Asian
    0
    0%
    0
    0%
    0
    0%
    Native Hawaiian or Other Pacific Islander
    0
    0%
    0
    0%
    0
    0%
    Black or African American
    13
    8.1%
    61
    19.1%
    74
    15.4%
    White
    140
    87%
    250
    78.4%
    390
    81.3%
    More than one race
    0
    0%
    0
    0%
    0
    0%
    Unknown or Not Reported
    8
    5%
    8
    2.5%
    16
    3.3%
    Region of Enrollment (Count of Participants)
    United States
    161
    100%
    319
    100%
    480
    100%
    Menopausal status (Count of Participants)
    Pre/peri-
    70
    43.5%
    154
    48.3%
    224
    46.7%
    Post-
    91
    56.5%
    165
    51.7%
    256
    53.3%
    Duration of Tamoxifen treatment (years) (years) [Median (Full Range) ]
    Median (Full Range) [years]
    0.88
    0.98
    0.93
    Prior chemotherapy (Count of Participants)
    Yes
    92
    57.1%
    169
    53%
    261
    54.4%
    No
    69
    42.9%
    150
    47%
    219
    45.6%
    Tamoxifen indication (Count of Participants)
    Invasive Disease
    144
    89.4%
    263
    82.4%
    407
    84.8%
    DCIS
    17
    10.6%
    49
    15.4%
    66
    13.8%
    Other
    0
    0%
    6
    1.9%
    6
    1.3%

    Outcome Measures

    1. Primary Outcome
    Title Endoxifen Concentrations in Participants Receiving Tamoxifen Citrate Dose of 20 mg or 40 mg Stratified by the Metabolizing CYP2D6 Genotypes
    Description Measurements of plasma concentrations of the key active metabolite of tamoxifen, endoxifen, were measured at baseline and after 4 months of treatment; The most common CYP2D6 alleles have been grouped by functional activity classifications with descending activity: ultra-rapid (UM), extensive (EM), intermediate (IM) or poor (PM) metabolism. A given patient has two alleles, giving them 10 possible allelic combinations, or diplotypes (UM/UM, UM/EM, EM/EM, etc.). These diplotypes are collapsed into four phenotypes, UM, EM, IM or PM.
    Time Frame 4 months

    Outcome Measure Data

    Analysis Population Description
    Baseline measurements are reported on all 353 subjects, while the 4 month levels are reported only for patients who completed 4 months of treatment
    Arm/Group Title Ultra-rapid Metabolizers Extensive Metabolizers Intermediate Metabolizers Poor Metabolizers
    Arm/Group Description Those with the highest transformation of the CYP2D6 genotype to allelic activity Those with the most normal transformation of the CYP2D6 genotype to allelic activity Those with reduced transformation of the CYP2D6 genotype to allelic activity Genotype-guided escalation of the tamoxifen dose from 20mg to 40mg/day. Those with no transformation of the CYP2D6 genotype to allelic activity Genotype-guided escalation of the tamoxifen dose from 20mg to 40mg/day.
    Measure Participants 5 119 212 17
    Baseline endoxifen concentration
    8.4
    (4.59)
    10.00
    (6.00)
    7.10
    (4.77)
    3.42
    (2.75)
    4-Month endoxifen concentration
    15.35
    (5.48)
    9.30
    (5.03)
    10.74
    (7.36)
    5.52
    (2.57)
    2. Secondary Outcome
    Title Number of Participants With Pulmonary Embolism (PE), Deep Vein Thrombosis (DVT), Stroke, and/or Endometrial Cancer
    Description The doubling of tamoxifen dose is defined as "unacceptable" (i.e., not tolerable) if the prevalence of Pulmonary embolism (PE), Deep vein thrombosis (DVT), stroke, or endometrial cancer, either individually or in any combination, is greater than 2%.
    Time Frame Approximately ten months from registration to last follow-up

    Outcome Measure Data

    Analysis Population Description
    Incidence of unacceptable adverse events among all patients who completed study
    Arm/Group Title Tamoxifen 20 Tamoxifen 40
    Arm/Group Description One arm, containing the ultra-rapid and extensive metabolizer genotypes, continues treatment with tamoxifen at 20mg. tamoxifen citrate: Women found to be IM or PM will undergo increased tamoxifen to 40 mg/day (20 mg bid). Drug is given orally on a daily basis. gene expression analysis: Genetic analysis of blood sample. pharmacogenomic studies: Genetic analysis of blood sample. questionnaire administration: Questionnaire called the survey of participants. Questionnaires is self administered on paper documents and given pre-study, and at 4 months quality-of-life assessment: Self administration of a multiquestion questionnaire called the Functional Assessment of Cancer Therapy -Breast (FACT-B). Given pre-study, at 4 months and at 8-10 months. This arm, containing the intermediate and poor metabolizer genotypes, receives escalated treatment with tamoxifen at 40mg. tamoxifen citrate: Women found to be IM or PM will undergo increased tamoxifen to 40 mg/day (20 mg bid). Drug is given orally on a daily basis. gene expression analysis: Genetic analysis of blood sample. pharmacogenomic studies: Genetic analysis of blood sample. questionnaire administration: Questionnaire called the survey of participants. Questionnaires is self administered on paper documents and given pre-study, and at 4 months quality-of-life assessment: Self administration of a multiquestion questionnaire called the Functional Assessment of Cancer Therapy -Breast (FACT-B). Given pre-study, at 4 months and at 8-10 months.
    Measure Participants 161 319
    Pulmonary embolism (PE)
    0
    0%
    0
    0%
    Deep vein thrombosis (DVT)
    0
    0%
    0
    0%
    Stroke
    0
    0%
    0
    0%
    Endometrial cancer
    0
    0%
    0
    0%
    3. Secondary Outcome
    Title Change in Median Endoxifen Concentrations to Determine Feasibility of Obtaining Pharmacogenomic Information From Patients in the Clinical Setting and Using it to Guide Changes in Therapy
    Description If the key active tamoxifen metabolite, endoxifen, could be significantly increased by genotype-guided tamoxifen dosing in patients with intermediate CYP2D6 metabolism (by increasing tamoxifen dosing based on CYP2D6 genotype), then the study would be deemed feasible and the accrual expanded.
    Time Frame Baseline and 4 months after dose increase

    Outcome Measure Data

    Analysis Population Description
    This was based on the initial 119 subjects enrolled (based on initial sample size of 100) and of those, the 89 that completed 4 months of tamoxifen therapy
    Arm/Group Title Extensive Metabolizers Intermediate Metabolizers Poor Metabolizers
    Arm/Group Description Those with the highest endoxifen concentrations as measured at baseline. Genotype-guided escalation of the tamoxifen dose from 20mg to 40mg/day. Genotype-guided escalation of the tamoxifen dose from 20mg to 40mg/day.
    Measure Participants 29 51 9
    Median (Inter-Quartile Range) [ng/mL]
    -1.5
    7.6
    6.1
    4. Secondary Outcome
    Title CYP2D6 Allele Frequencies and Endoxifen Levels Among African-American Women Taking Tamoxifen Citrate
    Description Mean endoxifen levels by CYP2D6 genotype among African Americans. Measurements of plasma concentrations of the key active metabolite of tamoxifen, endoxifen, were measured at baseline.The most common CYP2D6 alleles have been grouped by functional activity classifications with descending activity: ultra-rapid (UM), extensive (EM), intermediate (IM) or poor (PM) metabolism. A given patient has two alleles, giving them 10 possible allelic combinations, or diplotypes (UM/UM, UM/EM, EM/EM, etc.). These diplotypes are collapsed into four phenotypes, UM, EM, IM or PM.
    Time Frame baseline

    Outcome Measure Data

    Analysis Population Description
    Only participants who self-identified as African American were included in this analysis
    Arm/Group Title African Americans
    Arm/Group Description Participants who self identified as African American Race
    Measure Participants 52
    UM
    14.58
    EM
    9.69
    IM
    7.09
    PM
    0.8
    5. Secondary Outcome
    Title Change in Plasma Endoxifen Levels After an Increase in Tamoxifen Citrate Dose From 20 mg to 40 mg Daily in Patients With Poor-metabolizing Genotypes
    Description The intrapatient change in median endoxifen levels were calculated between baseline and 4 months after the increase in dose of Tamoxifen from 20mg/day to 40 mg/day
    Time Frame Baseline and 4 months after dose increase

    Outcome Measure Data

    Analysis Population Description
    Analysis limited to only those subjects with the Poor Metabolizing (PM) genotype who were evaluable at baseline
    Arm/Group Title Poor Metabolizers
    Arm/Group Description Those with no transformation of the CYP2D6 genotype to allelic activity Genotype-guided escalation of the tamoxifen dose from 20mg to 40mg/day.
    Measure Participants 11
    Median (Inter-Quartile Range) [ng/mL]
    6.1
    6. Secondary Outcome
    Title Patient Understanding of Pharmacogenomics
    Description To examine patients' beliefs about how hypothetical genotype information would affect their perceived recurrence risk and benefits of tamoxifen therapy, participants were given experimentally manipulated 6 vignettes to describe hypothetical tamoxifen treatment (no or yes) and hypothetical genotype (EM, IM or PM). For each vignette, participants gave their perceived recurrence risk (RR; 0-100%)
    Time Frame baseline

    Outcome Measure Data

    Analysis Population Description
    Of 377 patients who were eligible to complete the survey, 320 patients completed the survey and 57 returned incomplete surveys
    Arm/Group Title All Participants
    Arm/Group Description All participants in the main study who consented to this additional survey
    Measure Participants 320
    Perceived RR -No tamoxifen/EM
    47
    Perceived RR -No tamoxifen/iM
    48
    Perceived RR -No tamoxifen/PM
    53
    Perceived RR - tamoxifen/EM
    22
    Perceived RR -tamoxifen/IM
    30
    Perceived RR -tamoxifen/PM
    40

    Adverse Events

    Time Frame Approximately ten months from on-study to last follow-up visit
    Adverse Event Reporting Description
    Arm/Group Title Ultra-rapid and Extensive Metabolizers Intermediate Metabolizers Poor Metabolizers
    Arm/Group Description Those with the highest endoxifen concentrations as measured at baseline. Genotype-guided escalation of the tamoxifen dose from 20mg to 40mg/day. Genotype-guided escalation of the tamoxifen dose from 20mg to 40mg/day.
    All Cause Mortality
    Ultra-rapid and Extensive Metabolizers Intermediate Metabolizers Poor Metabolizers
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/161 (0%) 0/290 (0%) 0/29 (0%)
    Serious Adverse Events
    Ultra-rapid and Extensive Metabolizers Intermediate Metabolizers Poor Metabolizers
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/161 (0%) 3/290 (1%) 0/29 (0%)
    Nervous system disorders
    headache 0/161 (0%) 0 1/290 (0.3%) 1 0/29 (0%) 0
    Psychiatric disorders
    Mood alteration 0/161 (0%) 0 1/290 (0.3%) 1 0/29 (0%) 0
    Reproductive system and breast disorders
    Hemorrhage, GU 0/161 (0%) 0 1/290 (0.3%) 1 0/29 (0%) 0
    Vascular disorders
    thrombosis 0/161 (0%) 0 1/290 (0.3%) 1 0/29 (0%) 0
    Other (Not Including Serious) Adverse Events
    Ultra-rapid and Extensive Metabolizers Intermediate Metabolizers Poor Metabolizers
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 149/161 (92.5%) 274/290 (94.5%) 26/29 (89.7%)
    Blood and lymphatic system disorders
    Hemorrhage, GU - Vagina 0/161 (0%) 4/290 (1.4%) 2/29 (6.9%)
    Hemorrhage/Bleeding - Other (Specify, __) 3/161 (1.9%) 2/290 (0.7%) 0/29 (0%)
    Cardiac disorders
    Palpitations 4/161 (2.5%) 5/290 (1.7%) 0/29 (0%)
    Eye disorders
    Cataract 3/161 (1.9%) 8/290 (2.8%) 0/29 (0%)
    Ocular/Visual - Other (Specify, __) 2/161 (1.2%) 2/290 (0.7%) 0/29 (0%)
    Vision-blurred vision 8/161 (5%) 21/290 (7.2%) 0/29 (0%)
    Gastrointestinal disorders
    Constipation 8/161 (5%) 18/290 (6.2%) 0/29 (0%)
    Diarrhea 5/161 (3.1%) 9/290 (3.1%) 2/29 (6.9%)
    Distension/bloating, abdominal 5/161 (3.1%) 9/290 (3.1%) 0/29 (0%)
    Gastrointestinal - Other (Specify, __) 2/161 (1.2%) 6/290 (2.1%) 0/29 (0%)
    Heartburn/dyspepsia 5/161 (3.1%) 10/290 (3.4%) 0/29 (0%)
    Hemorrhoids 2/161 (1.2%) 4/290 (1.4%) 0/29 (0%)
    Nausea 6/161 (3.7%) 18/290 (6.2%) 0/29 (0%)
    Pain - Abdomen NOS 5/161 (3.1%) 6/290 (2.1%) 0/29 (0%)
    General disorders
    Edema: limb 10/161 (6.2%) 19/290 (6.6%) 0/29 (0%)
    Fatigue (asthenia, lethargy, malaise) 42/161 (26.1%) 64/290 (22.1%) 5/29 (17.2%)
    Pain - Other (Specify, __) 4/161 (2.5%) 6/290 (2.1%) 0/29 (0%)
    Immune system disorders
    Allergic rhinitis (including sneezing, nasal stuffiness, postnasal drip) 4/161 (2.5%) 11/290 (3.8%) 0/29 (0%)
    Infections and infestations
    Infection with unknown ANC 0/161 (0%) 9/290 (3.1%) 0/29 (0%)
    Injury, poisoning and procedural complications
    Bruising (in absence of Grade 3 or 4 thrombocytopenia) 4/161 (2.5%) 6/290 (2.1%) 0/29 (0%)
    Investigations
    ALT, SGPT (serum glutamic pyruvic transaminase) 3/161 (1.9%) 3/290 (1%) 0/29 (0%)
    AST, SGOT(serum glutamic oxaloacetic transaminase) 5/161 (3.1%) 3/290 (1%) 0/29 (0%)
    Weight gain 14/161 (8.7%) 33/290 (11.4%) 4/29 (13.8%)
    Musculoskeletal and connective tissue disorders
    Arthritis (non-septic) 0/161 (0%) 5/290 (1.7%) 0/29 (0%)
    Joint - Function 2/161 (1.2%) 7/290 (2.4%) 0/29 (0%)
    Musculoskeletal/Soft Tissue - Other (Specify, __) 5/161 (3.1%) 11/290 (3.8%) 0/29 (0%)
    Osteoporosis 0/161 (0%) 3/290 (1%) 0/29 (0%)
    Pain - Back 15/161 (9.3%) 28/290 (9.7%) 2/29 (6.9%)
    Pain - Bone 4/161 (2.5%) 11/290 (3.8%) 0/29 (0%)
    Pain - Breast 13/161 (8.1%) 22/290 (7.6%) 0/29 (0%)
    Pain - Buttock 3/161 (1.9%) 2/290 (0.7%) 0/29 (0%)
    Pain - Extremity-limb 16/161 (9.9%) 14/290 (4.8%) 3/29 (10.3%)
    Pain - Joint 40/161 (24.8%) 58/290 (20%) 5/29 (17.2%)
    Pain - Muscle 15/161 (9.3%) 38/290 (13.1%) 2/29 (6.9%)
    Pain - Neck 0/161 (0%) 5/290 (1.7%) 0/29 (0%)
    Nervous system disorders
    Cognitive disturbance 13/161 (8.1%) 27/290 (9.3%) 3/29 (10.3%)
    Dizziness 5/161 (3.1%) 14/290 (4.8%) 3/29 (10.3%)
    Memory impairment 6/161 (3.7%) 16/290 (5.5%) 0/29 (0%)
    Neurology - Other (Specify, __) 0/161 (0%) 7/290 (2.4%) 0/29 (0%)
    Neuropathy- sensory 15/161 (9.3%) 22/290 (7.6%) 0/29 (0%)
    Pain - Head/headache 15/161 (9.3%) 42/290 (14.5%) 4/29 (13.8%)
    Psychiatric disorders
    Insomnia 26/161 (16.1%) 42/290 (14.5%) 4/29 (13.8%)
    Mood alteration 2/161 (1.2%) 4/290 (1.4%) 0/29 (0%)
    Mood alteration - Agitation 5/161 (3.1%) 9/290 (3.1%) 4/29 (13.8%)
    Mood alteration - Anxiety 20/161 (12.4%) 17/290 (5.9%) 0/29 (0%)
    Mood alteration - Depression 14/161 (8.7%) 13/290 (4.5%) 2/29 (6.9%)
    Renal and urinary disorders
    Incontinence, urinary 13/161 (8.1%) 28/290 (9.7%) 3/29 (10.3%)
    Urinary frequency/urgency 4/161 (2.5%) 2/290 (0.7%) 0/29 (0%)
    Reproductive system and breast disorders
    Irregular menses (change from baseline) 9/161 (5.6%) 14/290 (4.8%) 0/29 (0%)
    Libido 16/161 (9.9%) 24/290 (8.3%) 3/29 (10.3%)
    Sexual/Reproductive Function - Other (Specify, __) 9/161 (5.6%) 17/290 (5.9%) 0/29 (0%)
    Vaginal discharge (non-infectious) 20/161 (12.4%) 44/290 (15.2%) 2/29 (6.9%)
    Vaginal dryness 32/161 (19.9%) 66/290 (22.8%) 8/29 (27.6%)
    Vaginitis 3/161 (1.9%) 3/290 (1%) 0/29 (0%)
    Vaginitis (not due to infection) 0/161 (0%) 4/290 (1.4%) 0/29 (0%)
    Respiratory, thoracic and mediastinal disorders
    Cough 10/161 (6.2%) 12/290 (4.1%) 0/29 (0%)
    Dyspnea 11/161 (6.8%) 15/290 (5.2%) 0/29 (0%)
    Nasal cavity/paranasal sinus reactions 2/161 (1.2%) 4/290 (1.4%) 0/29 (0%)
    Pain - Chest/thorax NOS 4/161 (2.5%) 2/290 (0.7%) 0/29 (0%)
    Pulmonary/Upper Respiratory - Other (Specify, __) 4/161 (2.5%) 4/290 (1.4%) 0/29 (0%)
    Skin and subcutaneous tissue disorders
    Hair loss/alopecia (scalp or body) 8/161 (5%) 17/290 (5.9%) 0/29 (0%)
    Nail changes 1/161 (0.6%) 7/290 (2.4%) 0/29 (0%)
    Pruritus/itching 4/161 (2.5%) 3/290 (1%) 0/29 (0%)
    Rash/desquamation 4/161 (2.5%) 6/290 (2.1%) 0/29 (0%)
    Rash: acne/acneiform 2/161 (1.2%) 6/290 (2.1%) 2/29 (6.9%)
    Sweating (diaphoresis) 6/161 (3.7%) 12/290 (4.1%) 0/29 (0%)
    Vascular disorders
    Hot flashes/flushes 124/161 (77%) 230/290 (79.3%) 23/29 (79.3%)
    Hypertension 3/161 (1.9%) 11/290 (3.8%) 0/29 (0%)
    Lymphedema-related fibrosis 0/161 (0%) 5/290 (1.7%) 0/29 (0%)

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

    Results Point of Contact

    Name/Title Robin V. Johnson
    Organization UNC Lineberger Comprehensive Cancer Center
    Phone 919-966-1125
    Email Robin_V_Johnson@med.unc.edu
    Responsible Party:
    UNC Lineberger Comprehensive Cancer Center
    ClinicalTrials.gov Identifier:
    NCT00764322
    Other Study ID Numbers:
    • LCCC 0801
    • P30CA016086
    • 08-0483
    First Posted:
    Oct 2, 2008
    Last Update Posted:
    Aug 1, 2017
    Last Verified:
    Jul 1, 2017