HELEX: Extension Study of Lapatinib Plus Herceptin With or Without Endocrine Therapy

Sponsor
Baylor Breast Care Center (Other)
Overall Status
Active, not recruiting
CT.gov ID
NCT00999804
Collaborator
Translational Breast Cancer Research Consortium (Other), GlaxoSmithKline (Industry)
128
8
2
147
16
0.1

Study Details

Study Description

Brief Summary

Breast cancer is the most common malignancy in the U.S. Targeted therapies such as tamoxifen have been revolutionary in reducing tumor recurrences and mortality in early breast cancer. Using this successful paradigm, there has been a continued search for other targeted biologic therapies directed at receptors with known potential for promoting tumor growth.

The estrogen receptor (ER) and/or the HER signaling pathways are the dominant drivers of cell proliferation and survival in the majority of human breast cancers. Molecular targets of these pathways provide the most effective therapies in appropriately selected patients. However, de novo and acquired resistance remain major obstacles to successful treatment, and understanding the molecular pathways responsible for this resistance would enable the discovery of new strategies to overcome it.

The superiority of multi-drug HER2-targeted therapy over single agent therapy has been demonstrated in the preclinical setting using mouse xenografts. Trastuzumab, pertuzumab, lapatinib, and gefitinib, represent a group of therapeutic agents that target the HER family by different molecular mechanisms. Used as single agents in the MCF7/HER2-18 xenograft model, these drugs restored or enhanced sensitivity to tamoxifen. However, tumor growth inhibition lasted only 2-3 months before resistance to treatments occurred. However, when gefitinib, a HER1 inhibitor, was added to the two-antibody (T+P) regimen to block signals from HER1 dimers, a complete disappearance of nearly all xenograft tumors was observed; moreover, there was evidence of complete tumor eradication in 50% of the mice. The combination of lapatinib + trastuzumab was also highly effective in eradication of tumor burden, with no evidence of re-growth after 200 days. These xenograft models demonstrate that multi-drug HER2-targeted therapy more effectively induces apoptosis and inhibits proliferation, thereby resulting in tumor regression. Furthermore, HER2 combination therapy appears to more effectively reduce levels of phosphorylated pAKT and MAPK, thus resulting in sustained tumor inhibition.

Condition or Disease Intervention/Treatment Phase
Phase 2

Detailed Description

Breast cancer cells have certain characteristics or traits--these traits are called biomarkers. There are three biomarkers that help doctors decide which treatment to give any given patient. These biomarkers are the estrogen receptor (ER), progesterone receptor (PgR), and HER2 protein. Breast cancer cells that have a large number of estrogen or progesterone receptors are called ER and/or PgR positive. Cancers that are ER and/or PgR positive use the hormones estrogen and progesterone to help them grow. Not all breast cancers are ER or PgR positive. Patients are being asked to take part in this study that have a special type of breast cancer called HER2 positive breast cancer. HER2-positive breast cancer is a breast cancer that tests positive for a protein called human epidermal growth factor receptor-2 (HER2). HER2 is located on the outer surface of a cancer cell. The HER2 protein sends a signal to the inside of the cancer cells telling it to grow and divide.

Two medications that directly target this HER2 protein. One is called trastuzumab(Herceptin), and the other is called lapatinib (Tykerb). Both medications are FDA-approved for the treatment of women with HER2+ breast cancer. Each medication attaches to the protein so that it can no longer function. Once the protein stops working, the cancer cells can no longer make copies of themselves. This makes cancer shrink. Both drugs target HER2; however each drug works a little bit differently.

Some patients respond better to Herceptin, and some patients respond better to Tykerb. Right now, we are not sure why some patients respond to one drug but do not respond to the other drug. One possibility is that in some patients, the HER2 protein finds another way to send its message to the inside of the cell (similar to a road detour). For example, when one path is "closed" because the drug is blocking it, the HER2 protein finds a different way to send its signal. We think that we can completely block the HER2 protein by giving patients both Tykerb and Herceptin.

Some patients with HER positive breast cancer are also ER and/or PgR positive. Even after HER2 is completely blocked, these types of cancer cells can still grow by using the estrogen or progesterone receptor. If a patient is told they are ER and/or PgR positive, they will also take an anti-estrogen pill along with Tykerb and Herceptin. We think that we can stop cancer growth more completely by blocking both the HER2 protein and the ER/PR receptors.

Study Design

Study Type:
Interventional
Actual Enrollment :
128 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
TBCRC 023: A Randomized Multicenter Phase II Neoadjuvant Trial of Lapatinib Pus Trastuzumab, With or Without Endocrine Therapy for 12 Weeks vs. 24 Weeks in Patients With HER2 Overexpressing Breast Cancer
Actual Study Start Date :
Oct 1, 2011
Actual Primary Completion Date :
Nov 1, 2014
Anticipated Study Completion Date :
Jan 1, 2024

Arms and Interventions

Arm Intervention/Treatment
Experimental: 24-week arm

Participants will receive 24-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy.

Drug: Lapatinib
1000 mg of Lapatinib by mouth daily
Other Names:
  • TyKerb
  • Drug: Letrozole
    Letrozole, 2.5 mg by mouth daily (for hormone receptor positive participants only)
    Other Names:
  • Femara
  • Drug: Trastuzumab
    6 mg/kg intravenously, every 3 weeks
    Other Names:
  • Herceptin
  • Active Comparator: 12-week arm

    Participants will receive 12-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy.

    Drug: Lapatinib
    1000 mg of Lapatinib by mouth daily
    Other Names:
  • TyKerb
  • Drug: Letrozole
    Letrozole, 2.5 mg by mouth daily (for hormone receptor positive participants only)
    Other Names:
  • Femara
  • Drug: Trastuzumab
    6 mg/kg intravenously, every 3 weeks
    Other Names:
  • Herceptin
  • Outcome Measures

    Primary Outcome Measures

    1. Pathologic Complete Response [12 or 24 week depending the arm assignment]

      Pathologic complete response was defined as no residual invasive cancer in the breast, after 12 or 24 weeks of lapatinib/trastuzumab with or without endocrine therapy. This outcome is based on patient's pathological report. We are not measuring the clinical response. Participants who have received at least one cycle of therapy (defined as one dose of trastuzumab and 21 days of lapatinib), and have had their response classified were evaluable.

    Secondary Outcome Measures

    1. Number of Participants With Adverse Events [12 week or 24 weeks depending on arm assignment]

      the safety and tolerability of an extended regimen of lapatinib + trastuzumab, with or without endocrine therapy

    2. Total Pathologic Complete Response [12 weeks or 24 weeks depending on arm assignment]

      pathologic complete response was defined as no residual invasive cancer in the breast and the axillary lymph nodes.

    3. Clinical Response [12 weeks or 24 weeks depending on arm assignment]

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    Female
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    1. All patients must be female and at least 18 years of age.

    2. Signed informed consent.

    3. Locally advanced breast cancers are eligible. Locally advanced cancers must be of clinical and/or radiologic size >3 cm, or >2 cm with clinical evidence of axillary nodal involvement*. (If tumors are less than 3 cm, we will use the radiologically measured tumor size to determine if the tumor meets the minimal size requirements.)

    4. Patients must have histologically confirmed invasive mammary carcinoma that is HER2 overexpressing, defined as 3+ by immunohistochemistry, or a FISH/CEP ratio greater than 2.

    5. Negative serum pregnancy test (HCG) within 7 days of starting study drug, if of child-bearing potential.

    6. Kidney and liver function tests - all within 1.5 times the institutional upper limit of normal.

    7. Performance status (WHO/ECOG scale) 0-1 and life expectancy >6 months.

    8. No evidence of brain or leptomeningeal disease, or any other Stage IV disease.

    9. No previous or current malignancies at other sites within the last 5 years, with exception of adequately treated cone-biopsied in situ carcinoma of the cervix uteri and basal or squamous cell carcinoma of the skin.

    Exclusion Criteria:
    1. Patients with bilateral breast cancer.

    2. Pregnancy or unwillingness to use a reliable contraceptive method in women of child-bearing potential.

    3. Severe underlying chronic illness or disease.

    4. Cardiomyopathy or baseline LVEF less than 50%.

    5. Other investigational drugs while on study.

    6. Severe or uncontrolled hypertension, history of congestive heart failure or severe coronary arterial disease.

    7. Malabsorption syndrome, disease significantly affecting gastrointestinal function, or resection of the stomach or small bowel. Subjects with ulcerative colitis are also excluded

    8. Taking any lapatinib prohibited medication(s)

    9. Inability or unwillingness to comply with, or follow study procedures.

    10. Patients who have received any form of treatment for breast cancer within the past five years, including surgical resection, chemotherapy, endocrine therapy, or biologic therapy.

    11. Patients with a prior history of ipsilateral invasive breast cancer or carcinoma in situ who present with a new primary.

    12. Patients with known active, infectious Hepatitis B, Hepatitis C, or HIV.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 University of Alabama - Birmingham Birmingham Alabama United States 35294
    2 University of Chicago Chicago Illinois United States 60637
    3 Indiana University Indianapolis Indiana United States 46202
    4 Johns Hopkins Baltimore Maryland United States 21231
    5 Dana Farber Cancer Institute Boston Massachusetts United States 02130
    6 Duke University Durham North Carolina United States 27705
    7 Vanderbilt University Medical Center Nashville Tennessee United States 37212
    8 Baylor College of Medicine Lester and Sue Smith Breast Center Houston Texas United States 77030

    Sponsors and Collaborators

    • Baylor Breast Care Center
    • Translational Breast Cancer Research Consortium
    • GlaxoSmithKline

    Investigators

    • Principal Investigator: Mothaffar Rimawi, MD, Baylor College of Medicine

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Mothaffar Rimawi, Professor, Baylor Breast Care Center
    ClinicalTrials.gov Identifier:
    NCT00999804
    Other Study ID Numbers:
    • H-25846
    First Posted:
    Oct 22, 2009
    Last Update Posted:
    Jun 2, 2022
    Last Verified:
    May 1, 2022
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Keywords provided by Mothaffar Rimawi, Professor, Baylor Breast Care Center
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details Participants were recruited between October 2011 and July 2014 at 10 study sites: Baylor College of Medicine, UAB, University of Chicago, Johns Hopkins, Duke, Indiana University, Vanderbilt, MDACC, DFCI, and Mayo Clinic.
    Pre-assignment Detail Participants screened up to 28-day period.
    Arm/Group Title 24-week Arm 12-week Arm
    Arm/Group Description Participants will receive 24-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks Participants will receive 12-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks
    Period Title: Overall Study
    STARTED 85 43
    COMPLETED 64 38
    NOT COMPLETED 21 5

    Baseline Characteristics

    Arm/Group Title 24-week Arm 12-week Arm Total
    Arm/Group Description Participants will receive 24-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks Participants will receive 12-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks Total of all reporting groups
    Overall Participants 85 43 128
    Age (years) [Median (Full Range) ]
    Median (Full Range) [years]
    50
    57
    52
    Sex: Female, Male (Count of Participants)
    Female
    85
    100%
    43
    100%
    128
    100%
    Male
    0
    0%
    0
    0%
    0
    0%
    Ethnicity (NIH/OMB) (Count of Participants)
    Hispanic or Latino
    15
    17.6%
    9
    20.9%
    24
    18.8%
    Not Hispanic or Latino
    69
    81.2%
    33
    76.7%
    102
    79.7%
    Unknown or Not Reported
    1
    1.2%
    1
    2.3%
    2
    1.6%
    Race (NIH/OMB) (Count of Participants)
    American Indian or Alaska Native
    0
    0%
    0
    0%
    0
    0%
    Asian
    3
    3.5%
    2
    4.7%
    5
    3.9%
    Native Hawaiian or Other Pacific Islander
    1
    1.2%
    0
    0%
    1
    0.8%
    Black or African American
    11
    12.9%
    10
    23.3%
    21
    16.4%
    White
    68
    80%
    31
    72.1%
    99
    77.3%
    More than one race
    1
    1.2%
    0
    0%
    1
    0.8%
    Unknown or Not Reported
    1
    1.2%
    0
    0%
    1
    0.8%

    Outcome Measures

    1. Primary Outcome
    Title Pathologic Complete Response
    Description Pathologic complete response was defined as no residual invasive cancer in the breast, after 12 or 24 weeks of lapatinib/trastuzumab with or without endocrine therapy. This outcome is based on patient's pathological report. We are not measuring the clinical response. Participants who have received at least one cycle of therapy (defined as one dose of trastuzumab and 21 days of lapatinib), and have had their response classified were evaluable.
    Time Frame 12 or 24 week depending the arm assignment

    Outcome Measure Data

    Analysis Population Description
    Participants who have received at least one cycle of therapy (defined as one dose of trastuzumab and 21 days of lapatinib), and have had their response classified were evaluable. 4 participant were not evaluable: 3 participant were found ineligible for the study and one participant died before surgery.
    Arm/Group Title 24-week Arm 12-week Arm
    Arm/Group Description Participants will receive 24-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks Participants will receive 12-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks
    Measure Participants 81 43
    pathologic complete response
    20
    23.5%
    5
    11.6%
    non-complete pathologic response
    61
    71.8%
    38
    88.4%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection 24-week Arm
    Comments The study was planned to enroll 136 patients if the original cohort (n=90) was deemed successful. The 24 weeks arm ran as a single arm, using an admissible Simon-like two-stage design. The 12 weeks arm accrued as long as the 24 weeks arm is open. The analysis of the first cohort indicated that 15 pCR were observed , which did not meet the required 20 or more responses. The accrual was closed early and the study has a total of 128 participants.
    Type of Statistical Test Superiority or Other (legacy)
    Comments
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter proportion of pCR
    Estimated Value 0.25
    Confidence Interval (2-Sided) %
    to
    Parameter Dispersion Type:
    Value:
    Estimation Comments No comparison is required between the 24 weeks arm and 12 weeks arm. The study is designed as the 24 weeks arm ran as a single arm, using an admissible Simon-like two-stage design and required 20 or more responses in the first 55 evaluable patients.
    2. Secondary Outcome
    Title Number of Participants With Adverse Events
    Description the safety and tolerability of an extended regimen of lapatinib + trastuzumab, with or without endocrine therapy
    Time Frame 12 week or 24 weeks depending on arm assignment

    Outcome Measure Data

    Analysis Population Description
    Participants who started the study treatment will be evaluable for safety analysis
    Arm/Group Title 24-week Arm 12-week Arm
    Arm/Group Description Participants will receive 24-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks Participants will receive 12-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks
    Measure Participants 85 43
    Number [participants]
    61
    71.8%
    26
    60.5%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection 24-week Arm
    Comments This outcome is to establish the safety and tolerability of an extended regimen of lapatinib + trastuzumab, with or without endocrine therapy. No comparison between the 2 arms is required.
    Type of Statistical Test Superiority or Other (legacy)
    Comments
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter proportion of patients with AE
    Estimated Value 0.72
    Confidence Interval (2-Sided) %
    to
    Parameter Dispersion Type:
    Value:
    Estimation Comments 61 out of 85 patients (72%) in the 24-week arm had at least 1 adverse events.
    3. Secondary Outcome
    Title Total Pathologic Complete Response
    Description pathologic complete response was defined as no residual invasive cancer in the breast and the axillary lymph nodes.
    Time Frame 12 weeks or 24 weeks depending on arm assignment

    Outcome Measure Data

    Analysis Population Description
    Participants who have received at least one cycle of therapy (defined as one dose of trastuzumab and 21 days of lapatinib), and have had their response classified were evaluable. 4 participant were not evaluable: 3 participant were found ineligible for the study and one participant died before surgery.
    Arm/Group Title 24-week Arm 12-week Arm
    Arm/Group Description Participants will receive 24-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks Participants will receive 12-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks
    Measure Participants 81 43
    total complete pathologic response
    8
    9.4%
    2
    4.7%
    not total complete pathologic response
    72
    84.7%
    41
    95.3%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection 24-week Arm
    Comments No comparison between the two arms is required.
    Type of Statistical Test Superiority or Other (legacy)
    Comments
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter proportion of tpCR in 24 weeks arm
    Estimated Value 0.1
    Confidence Interval (2-Sided) %
    to
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    4. Secondary Outcome
    Title Clinical Response
    Description
    Time Frame 12 weeks or 24 weeks depending on arm assignment

    Outcome Measure Data

    Analysis Population Description
    Participants who have received at least one cycle of therapy (defined as one dose of trastuzumab and 21 days of lapatinib), and have had their response classified were evaluable. 4 participants were not evaluable for efficacy.
    Arm/Group Title 24-week Arm 12-week Arm
    Arm/Group Description Participants will receive 24-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks Participants will receive 12-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks
    Measure Participants 81 43
    Complete response
    46
    54.1%
    21
    48.8%
    Partial response
    10
    11.8%
    13
    30.2%
    Stable disease
    2
    2.4%
    3
    7%
    Progressive disease
    13
    15.3%
    4
    9.3%
    Unknown
    10
    11.8%
    2
    4.7%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection 24-week Arm
    Comments No comparison between the 2 arm is required for this study.
    Type of Statistical Test Superiority or Other (legacy)
    Comments
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter proportion of CR+PR in 24 weeks arm
    Estimated Value 0.69
    Confidence Interval (2-Sided) %
    to
    Parameter Dispersion Type:
    Value:
    Estimation Comments

    Adverse Events

    Time Frame 7 months
    Adverse Event Reporting Description Adverse events experienced by participants will be collected and reported from initiation of study medication, throughout the study, and within 30 days of the last dose of study medication.
    Arm/Group Title 24-week Arm 12-week Arm
    Arm/Group Description Participants will receive 24-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks Participants will receive 12-weeks of lapatinib plus trastuzumab. Participants who are estrogen receptor (ER) and/or progesterone receptor (PR) positive will also receive endocrine therapy. Lapatinib: 1000 mg by mouth daily Letrozole: 2.5 mg by mouth daily (for hormone receptor positive participants only) Trastuzumab: 6 mg/kg intravenously, every 3 weeks
    All Cause Mortality
    24-week Arm 12-week Arm
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total / (NaN) / (NaN)
    Serious Adverse Events
    24-week Arm 12-week Arm
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 3/85 (3.5%) 1/43 (2.3%)
    Cardiac disorders
    Cardiac arrest 1/85 (1.2%) 1 0/43 (0%) 0
    Hepatobiliary disorders
    Elevated AST 1/85 (1.2%) 1 0/43 (0%) 0
    Infections and infestations
    Breast infection 1/85 (1.2%) 1 0/43 (0%) 0
    Renal and urinary disorders
    Acute kidney injury 0/85 (0%) 0 1/43 (2.3%) 1
    Hematuria 0/85 (0%) 0 1/43 (2.3%) 1
    Renal calculi 0/85 (0%) 0 1/43 (2.3%) 1
    Urinary retention 0/85 (0%) 0 1/43 (2.3%) 1
    Other (Not Including Serious) Adverse Events
    24-week Arm 12-week Arm
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 61/85 (71.8%) 26/43 (60.5%)
    Blood and lymphatic system disorders
    Anemia 8/85 (9.4%) 16 4/43 (9.3%) 11
    Gastrointestinal disorders
    Diarrhea 30/85 (35.3%) 51 14/43 (32.6%) 22
    Mucositis oral 9/85 (10.6%) 15 10/43 (23.3%) 10
    Vomiting 6/85 (7.1%) 11 2/43 (4.7%) 2
    General disorders
    Fatigue 14/85 (16.5%) 19 8/43 (18.6%) 8
    Nusea 11/85 (12.9%) 15 6/43 (14%) 6
    Pain 5/85 (5.9%) 6 2/43 (4.7%) 2
    Investigations
    Alanine aminotransferase increased 22/85 (25.9%) 54 5/43 (11.6%) 7
    Alkaline phosphatase increased 12/85 (14.1%) 17 3/43 (7%) 3
    Aspartate aminotransferase increased 23/85 (27.1%) 46 7/43 (16.3%) 7
    Blood bilirubin increased 8/85 (9.4%) 15 0/43 (0%) 0
    Metabolism and nutrition disorders
    Anorexia 8/85 (9.4%) 10 3/43 (7%) 3
    Nervous system disorders
    Dysgeusia 4/85 (4.7%) 4 4/43 (9.3%) 4
    Headache 5/85 (5.9%) 5 2/43 (4.7%) 2
    Psychiatric disorders
    Anxiety 4/85 (4.7%) 4 3/43 (7%) 3
    Insomnia 7/85 (8.2%) 7 4/43 (9.3%) 4
    Skin and subcutaneous tissue disorders
    Alopecia 3/85 (3.5%) 3 4/43 (9.3%) 4
    Dry skin 8/85 (9.4%) 9 2/43 (4.7%) 2
    Pruritus 5/85 (5.9%) 5 3/43 (7%) 3
    Rash acneiform 17/85 (20%) 22 5/43 (11.6%) 5
    Vascular disorders
    Hot flashes 8/85 (9.4%) 8 4/43 (9.3%) 4

    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 Dr. Mothaffar Rimawi
    Organization Baylor College of Medicine
    Phone 7137981311
    Email rimawi@bcm.edu
    Responsible Party:
    Mothaffar Rimawi, Professor, Baylor Breast Care Center
    ClinicalTrials.gov Identifier:
    NCT00999804
    Other Study ID Numbers:
    • H-25846
    First Posted:
    Oct 22, 2009
    Last Update Posted:
    Jun 2, 2022
    Last Verified:
    May 1, 2022