STUDY OF THE SAFETY, EFFICACY OF LETROZOLE PLUS PD 0332991 FORTHE TREATMENT OF ADVANCED BREAST CANCER IN POSTMENOPAUSALWOME
- Conditions
- Advanced Breast CancerMedDRA version: 20.0Level: LLTClassification code 10027475Term: Metastatic breast cancerSystem Organ Class: 100000020826Therapeutic area: Diseases [C] - Cancer [C04]
- Registration Number
- EUCTR2008-002392-27-IE
- Lead Sponsor
- Pfizer Inc.
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ot Recruiting
- Sex
- Female
- Target Recruitment
- 150
Subjects must meet all of the following inclusion criteria to be eligible
for enrollment into the study:
1.Histologically or cytologically proven diagnosis of adenocarcinoma of
the breast with evidence of 1) locally recurrent disease not amenable to
resection or radiation therapy with curative intent, or 2) metastatic
disease.
2.ER positive tumor. Positivity is defined either as =10 fmol of H to the
power of 3 -estrogen binding per mg of cytosol protein for dextran
coated charcoal and sucrose density methods, or =0.10 fmol of H to the
power of 3 -estrogen binding per mg of DNA for IF/EIA technique. In
case of use of immunohistochemistry, the report should mention positive
receptor status according to the standards of the laboratory.
3.HER2 negative breast cancer by FISH or IHC.
4.Paraffin-embedded tumor block(s) available for centralized
assessment of Rb and other cell cycle-related proteins. Phase 2 Part 2
only: CCND1 amplification and/or loss of p16 as determined by the
central laboratory.
5.Measurable disease according to RECIST or bone-only disease (Phase 2
only). Previously irradiated lesions are deemed measurable only if
progression is documented at the site after completion of radiation.
6. Females, 18 years of age or older
7.Postmenopausal status defined as:
•Prior bilateral surgical oophorectomy
•Amenorrhea and age = 60 years
•Age < 60 years and amenorrhea for 12 or more months in the absence
of chemotherapy, tamoxifen, toremifene, or ovarian suppression and FSH
and estradiol in the postmenopausal ranges
8.Eastern Cooperative Oncology Group (ECOG)Performance status 0 or 1.
9.Resolution of all acute toxic effects of prior therapy or surgical
procedures to CTCAE grade =1 (except alopecia or other toxicities not
considered a safety risk for the patient).
10.Adequate organ function as defined by the following criteria:
•Absolute neutrophil count (ANC) = 1500/µL
•Platelets = 100,000/µL
•Serum aspartate transaminase (AST) and serum alanine transaminase
(ALT) =3 x upper limit of normal (ULN), or AST and ALT =5 x ULN if liver
function abnormalities are due to underlying malignancy
•Total serum bilirubin = 1.5 x ULN regardless of liver involvement
secondary to tumor. Inclusion of patients with increased serum indirect
bilirubin due to Gilbert's syndrome is permitted.
•Serum creatinine = 1.5 x ULN
•QTc =470 msec (based on the mean value of the triplicate ECGs)
11.Evidence of a signed and dated informed consent document indicating that the subject or a legal representative has been informed of all
the pertinent aspects of the trial prior to enrollment.
12. Subjects who are willing to comply with scheduled visits, treatment plan, laboratory tests, and other procedures.
Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range 75
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range 75
Subjects presenting with any of the following will not be included in the
study:
1. Brain metastases (even if treated and stable), spinal cord
compression, carcinomatous meningitis, or leptomeningeal disease.
2. Major surgery within 3 weeks of first study treatment.
3. Prior treatment with:
• Any anti-cancer therapies for advanced disease, with the exception of
radiation therapy to < 25% of bone marrow at least 2 weeks prior to study treatment initiation
• (neo)adjuvant letrozole with disease recurrence =12 months (Phase 2
only)
• Any CDK inhibitor
4. Current treatment with:
• Any anti-cancer therapies for advanced disease
• Any experimental treatment on another clinical trial
• Therapeutic doses of anticoagulant. Low dose anticoagulants for deep
vein thrombosis prophylaxis are allowed. Low molecular weight heparin is
allowed. Aspirin is permitted.
5. Current use or anticipated need for:
• food or drugs that are known strong CYP3A4 inhibitors (i.e. grapefruit
juice, verapamil, ketoconazole, miconazole, itraconazole, posaconazole,
erythromycin,clarithromycin, tilithromycin, indinavir, saquinavir, ritonavir, nelfinavir,lopinavir,atazanavir, amprenavir, fosamprenavir, nefazodone, diltiazem, and delaviridine) – for both Phases 1 and 2
• drugs that are known strong CYP3A4 inducers (i.e. carbamazepine,
dexamethasone, felbamate, omeprazole, phenobarbital, phenytoin,
primidone, rifabutin, rifampin, rifapentin, clevidipine, and St. John's
Wort) – for Phase 1 only.
6. Diagnosis of any secondary malignancy within the last 3 years, except
for adequately treated basal cell or squamous cell skin cancer, or
carcinoma in situ of the cervix
7. Any of the following in the previous 6 months: myocardial infarction,
severe/unstable angina, ongoing cardiac dysrhythmias of NCI CTCAE
grade = 2, atrial fibrillation of any grade, coronary/peripheral artery
bypass graft, symptomatic congestive heart failure, cerebrovascular
accident including transient ischemic attack, or symptomatic pulmonary
embolism.
8. Active inflammatory bowel disease or chronic diarrhea. Short bowel
syndrome. Upper gastrointestinal surgery including gastric resection.
9. Known hypersensitivity to letrozole or to any of its excipients
10. Known human immunodeficiency virus infection
11. Other severe acute or chronic medical or psychiatric condition or
laboratory abnormality that may increase the risk associated with study
participation or investigational product administration or may interfere
with the interpretation of study results and, in the judgment of the
investigator, would make the subject inappropriate for entry into this
study.
Study & Design
- Study Type
- Interventional clinical trial of medicinal product
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method
- Secondary Outcome Measures
Name Time Method