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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00057941
Other study ID # NCI-2012-03148
Secondary ID NCI-2012-03148CD
Status Completed
Phase Phase 2
First received April 7, 2003
Last updated April 22, 2014
Start date September 2003
Est. completion date June 2012

Study information

Verified date January 2013
Source National Cancer Institute (NCI)
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

This randomized phase II trial is studying how well giving gefitinib together with anastrozole works compared to giving gefitinib together with fulvestrant in treating postmenopausal women with recurrent or metastatic breast cancer. Estrogen can stimulate the growth of breast cancer cells. Hormone therapy using anastrozole and fulvestrant may fight breast cancer by blocking the use of estrogen. Gefitinib (ZD1839) may stop the growth of cancer cells by blocking the enzymes necessary for their growth. It is not yet known whether gefitinib is more effective when combined with anastrozole or fulvestrant in treating breast cancer.


Description:

PRIMARY OBJECTIVES:

I. Evaluate the antitumor activity of anastrozole given in combination with the EGFR tyrosine kinase inhibitor ZD1839, and of fulvestrant given in combination with the EGFR tyrosine kinase inhibitor ZD1839.

II. Evaluate the safety of anastrozole given in combination with ZD1839 and fulvestrant given in combination with ZD1839.

III. Evaluate the interaction of biological characteristics that predict for response of breast cancer to treatment with anastrozole and ZD1839 and with fulvestrant and ZD1839.

OUTLINE: This is a randomized, open-label study. Patients are stratified according to prior hormonal therapy (yes vs. no) and dominant site of disease (soft tissue/lymph nodes vs. bone vs. visceral). Patients are randomized to 1 of 2 treatment arms.

Arm I: Patients receive oral anastrozole and oral gefitinib once daily on days 1-28.

Arm II: Patients receive fulvestrant intramuscularly on day 1 and oral gefitinib once daily on days 1-28.

Courses in both arms repeat every 28 days in the absence of disease progression or unacceptable toxicity.

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


Recruitment information / eligibility

Status Completed
Enrollment 148
Est. completion date June 2012
Est. primary completion date June 2012
Accepts healthy volunteers No
Gender Female
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Patients must have estrogen and/or progesterone receptor positive histologically confirmed adenocarcinoma of the breast with measurable recurrent or metastatic carcinoma of the breast

- Baseline measurements and evaluations of involved sites should be performed as close as possible to study entry, but must be within 4 weeks prior to randomization

- Patients with available tissue blocks from either the primary or metastatic site must submit the tissue for EGFR analysis

- All patients must be postmenopausal females defined by:

- Prior bilateral oophorectomy or bilateral ovarian irradiation

- No menstrual period for 12 months or longer. If age 55 years or less and on tamoxifen within the prior 6 months, must have an estradiol level in the postmenopausal range

- Patients must not have had more than 2 prior chemotherapy regimens for metastatic disease and no chemotherapy within 3 weeks prior to randomization; no concurrent chemotherapy is allowed while on protocol therapy

- Patients must not have prior hormonal therapy for metastatic disease; no prior therapy in the adjuvant setting with an estrogen receptor down-regulator (e.g. fulvestrant) or an aromatase inhibitor (e.g. anastrozole, letrozole, exemestane, aminoglutethamide); non-protocol concurrent hormonal therapy is not allowed

- Patients must not have had prior therapy with agents that target EGFR

- Previous, but not concomitant, therapy with trastuzumab (Herceptin) is allowed; patients must not receive trastuzumab (Herceptin) within 3 weeks prior to randomization

- Patients must have ECOG performance status of 0, 1, or 2

- Neutrophils >= 1500/mm^3

- Platelets >= 100,000/mm^3

- Bilirubin =< 1.25 x upper limit of normal

- SGPT (ALT) and SGOT (AST) =< 2.5 x upper limit of normal if no demonstrable liver metastases or =< 5 times upper limit of normal in the presence of liver metastases

- Calculated creatinine clearance >= 30ml/min

- INR, PT and PTT within normal range

- Patients must not be receiving therapy with anticoagulants or have other contraindication to i.m. injections

- Patients must not have a history of central nervous system metastasis

- Patients may receive concurrent radiation therapy to painful sites of boney disease or areas of impending fracture as long as the radiation therapy is initiated prior to study entry and sites of measurable disease outside the radiation therapy port are available to follow; patient who have received prior radiation therapy must have recovered from toxicity of the prior radiation therapy

- Patients must not take the following medications that may alter ZD1839 pharmacokinetics while enrolled in this trial: phenytoin, carbamazapine, phenobarbitol, rifampicin, and St. John's Wort, oxcarbazepine, rifapentine, modafinil, and griseofulvin

- Patients age =< 55 years must not be receiving LHRH agonists or antagonists within 3 months prior to randomization

- Patients who have an ocular inflammation or infection should be fully treated before entry into the trial; patients with a neuropathic keratopathy or diabetes or those with anterior basement membrane disease must be advised of the need for frequent opthalmalogic exams

- Patients who continue to wear contact lenses must be advised that they have an increased risk of ocular events; the decision to wear contact lenses should be discussed with the patient's treating oncologist and ophthalmologist

- Patients must not suffer from medical or psychiatric conditions that would interfere with protocol compliance, the ability to provide informed consent, or assessment of response or anticipated toxicities

- Patients must be disease-free of prior invasive malignancies for > 5 years with the exception of curatively-treated basal cell or squamous cell carcinoma of the skin or carcinoma in situ of the cervix

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Drug:
anastrozole
Given orally
gefitinib
Given orally
fulvestrant
Given intramuscularly
Other:
laboratory biomarker analysis
Correlative studies

Locations

Country Name City State
United States Eastern Cooperative Oncology Group Boston Massachusetts

Sponsors (1)

Lead Sponsor Collaborator
National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Clinical Benefit Rate Clinical benefit = complete response (CR), partial response (PR), or stable disease (SD) lasting for at least 6 months, assessed per Response Evaluation Criteria of Solid Tumor (RECIST).CR=disappearance of all target and non-target lesions. PR= disappearance of or at least 30% decrease in the sum of the longest diameters of target lesions, with non-progressive disease in non-target lesions. SD= sum of the longest diameters of target lesions decrease <30% or increase <20%, with non-progressive disease in non-target lesions. 141 eligible, treated patients were included. assessed every 3 cycles while on treatment, assessed every 3 months when follow up <2 years, every 6 months between 2-3 years,no specific requirements after 3 years No
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