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Changes in Breast Density and Blood Hormone Levels in Postmenopausal Women Receiving Anastrozole or Exemestane for Breast Cancer

12 lipca 2016 zaktualizowane przez: Alliance for Clinical Trials in Oncology

Changes in Breast Density and Plasma Hormone Levels After One Year of Aromatase Inhibitor Therapy

RATIONALE: Studying changes in breast density and blood hormone levels in women receiving anastrozole or exemestane for breast cancer may help doctors learn more about the long-term effects of treatment and may help the study of breast cancer in the future.

PURPOSE: This clinical trial is studying changes in breast density and blood hormone levels in postmenopausal women receiving anastrozole or exemestane for breast cancer.

Przegląd badań

Szczegółowy opis

OBJECTIVES:

  • To assess the changes in percent breast density (in response to 1 year of aromatase inhibitor therapy) from levels prior to the initiation of treatment.
  • To assess the changes in dense area (in response to 1 year of aromatase inhibitor therapy) from levels prior to the initiation of treatment.
  • To examine whether changes in percent breast density (in response to 1 year of aromatase inhibitor therapy) from pre-treatment levels correlate with changes in plasma hormone levels (estrone, estrone-sulfate, estradiol, and SHBG) and drug levels (anastrozole or exemestane) over the same time period.
  • To examine whether changes in dense area (in response to 1 year of aromatase inhibitor therapy) from pre-treatment mammogram correlate with changes in plasma hormone levels (estrone, estrone-sulfate, estradiol, and SHBG) and drug levels (anastrozole or exemestane) over the same time period.
  • To assess whether women with high pre-treatment percent density (upper tertile) experience greater decreases in percent breast density after 1 year of aromatase inhibitor therapy than women with low pre-treatment percent density (lower tertile).
  • To assess whether women with high pre-treatment dense area (upper tertile) experience greater decreases in dense area after 1 year of aromatase inhibitor therapy than women with low pre-treatment dense area (lower tertile).
  • To examine the associations of haplotype-tagged single nucleotide polymorphisms in genes in the aromatase pathway identified through the Mayo Clinic and Indiana University Pharmacogenomics Research Network Projects, with changes in percent and area density, plasma hormone levels, and drug levels after 1 year of aromatase inhibitor therapy.

OUTLINE: This is a multicenter study.

Patients undergo blood sample collection at baseline and at 1 year after initiation of aromatase inhibitor therapy (anastrozole or exemestane). Samples are analyzed for estrogen and testosterone levels and additional hormone levels and growth factors that have been previously linked with breast density and that could be altered by aromatase inhibitor use (i.e., sex hormone-binding globulin [SHBG], DHEA, DHEA sulfate, progesterone, prolactin, insulin-like growth factor-1 [IGF-1], and insulin-like growth factor binding protein 3 [IGF BP3]). Samples are also analyzed for anastrozole and exemestane levels by HPLC. Pharmacogenetic studies are also performed. Haplotype-tagged single nucleotide polymorphisms in genes in the aromatase pathway are examined.

Patients also undergo mammogram at baseline (≤ 6 months prior to study registration) and at 1 year after initiation of aromatase inhibitor therapy.

Typ studiów

Obserwacyjny

Zapisy (Rzeczywisty)

140

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Lokalizacje studiów

    • Georgia
      • Augusta, Georgia, Stany Zjednoczone, 30912
        • MBCCOP - Medical College of Georgia Cancer Center
    • Illinois
      • Aurora, Illinois, Stany Zjednoczone, 60504
        • Rush-Copley Cancer Care Center
      • Bloomington, Illinois, Stany Zjednoczone, 61701
        • St. Joseph Medical Center
      • Canton, Illinois, Stany Zjednoczone, 61520
        • Graham Hospital
      • Carthage, Illinois, Stany Zjednoczone, 62321
        • Memorial Hospital
      • Effingham, Illinois, Stany Zjednoczone, 62401
        • St. Anthony's Memorial Hospital
      • Eureka, Illinois, Stany Zjednoczone, 61530
        • Eureka Community Hospital
      • Galesburg, Illinois, Stany Zjednoczone, 61401
        • Galesburg Cottage Hospital
      • Galesburg, Illinois, Stany Zjednoczone, 61401
        • Galesburg Clinic, PC
      • Havana, Illinois, Stany Zjednoczone, 62644
        • Mason District Hospital
      • Hopedale, Illinois, Stany Zjednoczone, 61747
        • Hopedale Medical Complex
      • Joliet, Illinois, Stany Zjednoczone, 60435
        • Joliet Oncology-Hematology Associates, Limited - West
      • Macomb, Illinois, Stany Zjednoczone, 61455
        • Mcdonough District Hospital
      • Moline, Illinois, Stany Zjednoczone, 61265
      • Moline, Illinois, Stany Zjednoczone, 61265
        • Trinity Cancer Center at Trinity Medical Center - 7th Street Campus
      • Normal, Illinois, Stany Zjednoczone, 61761
        • Bromenn Regional Medical Center
      • Normal, Illinois, Stany Zjednoczone, 61761
        • Community Cancer Center
      • Ottawa, Illinois, Stany Zjednoczone, 61350
        • Community Hospital of Ottawa
      • Ottawa, Illinois, Stany Zjednoczone, 61350
        • Oncology Hematology Associates of Central Illinois, PC - Ottawa
      • Pekin, Illinois, Stany Zjednoczone, 61554
        • Cancer Treatment Center at Pekin Hospital
      • Peoria, Illinois, Stany Zjednoczone, 61636
        • Methodist Medical Center of Illinois
      • Peoria, Illinois, Stany Zjednoczone, 61614
        • Proctor Hospital
      • Peoria, Illinois, Stany Zjednoczone, 61637
        • OSF St. Francis Medical Center
      • Peoria, Illinois, Stany Zjednoczone, 61615
        • CCOP - Illinois Oncology Research Association
      • Peoria, Illinois, Stany Zjednoczone, 61615
        • Oncology Hematology Associates of Central Illinois, PC - Peoria
      • Peru, Illinois, Stany Zjednoczone, 61354
        • Illinois Valley Community Hospital
      • Princeton, Illinois, Stany Zjednoczone, 61356
        • Perry Memorial Hospital
      • Spring Valley, Illinois, Stany Zjednoczone, 61362
        • St. Margaret's Hospital
      • Urbana, Illinois, Stany Zjednoczone, 61801
        • Carle Cancer Center at Carle Foundation Hospital
      • Urbana, Illinois, Stany Zjednoczone, 61801
        • CCOP - Carle Cancer Center
    • Indiana
      • Beech Grove, Indiana, Stany Zjednoczone, 46107
        • St. Francis Hospital and Health Centers - Beech Grove Campus
      • Michigan City, Indiana, Stany Zjednoczone, 46360
        • Saint Anthony Memorial Health Centers
      • Richmond, Indiana, Stany Zjednoczone, 47374
        • Reid Hospital & Health Care Services
    • Iowa
      • Ames, Iowa, Stany Zjednoczone, 50010
        • McFarland Clinic, PC
      • Bettendorf, Iowa, Stany Zjednoczone, 52722
      • Des Moines, Iowa, Stany Zjednoczone, 50309
        • CCOP - Iowa Oncology Research Association
      • Des Moines, Iowa, Stany Zjednoczone, 50309
        • John Stoddard Cancer Center at Iowa Methodist Medical Center
      • Des Moines, Iowa, Stany Zjednoczone, 50309
        • Medical Oncology and Hematology Associates at John Stoddard Cancer Center
      • Des Moines, Iowa, Stany Zjednoczone, 50314
        • Medical Oncology and Hematology Associates at Mercy Cancer Center
      • Des Moines, Iowa, Stany Zjednoczone, 50314
        • Mercy Cancer Center at Mercy Medical Center - Des Moines
      • Des Moines, Iowa, Stany Zjednoczone, 50316
        • John Stoddard Cancer Center at Iowa Lutheran Hospital
      • Des Moines, Iowa, Stany Zjednoczone, 50307
        • Mercy Capitol Hospital
      • Mason City, Iowa, Stany Zjednoczone, 50401
        • Mercy Cancer Center at Mercy Medical Center - North Iowa
      • Sioux City, Iowa, Stany Zjednoczone, 51101
        • Siouxland Hematology-Oncology Associates, LLP
      • Sioux City, Iowa, Stany Zjednoczone, 51104
        • St. Luke's Regional Medical Center
      • Sioux City, Iowa, Stany Zjednoczone, 51104
        • Mercy Medical Center - Sioux City
    • Kansas
      • Chanute, Kansas, Stany Zjednoczone, 66720
        • Cancer Center of Kansas, PA - Chanute
      • Dodge City, Kansas, Stany Zjednoczone, 67801
        • Cancer Center of Kansas, PA - Dodge City
      • El Dorado, Kansas, Stany Zjednoczone, 67042
        • Cancer Center of Kansas, PA - El Dorado
      • Kingman, Kansas, Stany Zjednoczone, 67068
        • Cancer Center of Kansas, PA - Kingman
      • Liberal, Kansas, Stany Zjednoczone, 67901
        • Southwest Medical Center
      • Newton, Kansas, Stany Zjednoczone, 67114
        • Cancer Center of Kansas, PA - Newton
      • Parsons, Kansas, Stany Zjednoczone, 67357
        • Cancer Center of Kansas, PA - Parsons
      • Pratt, Kansas, Stany Zjednoczone, 67124
        • Cancer Center of Kansas, PA - Pratt
      • Salina, Kansas, Stany Zjednoczone, 67042
        • Cancer Center of Kansas, PA - Salina
      • Wellington, Kansas, Stany Zjednoczone, 67152
        • Cancer Center of Kansas, PA - Wellington
      • Wichita, Kansas, Stany Zjednoczone, 67214
        • Wesley Medical Center
      • Wichita, Kansas, Stany Zjednoczone, 67208
        • Cancer Center of Kansas, PA - Medical Arts Tower
      • Wichita, Kansas, Stany Zjednoczone, 67214
        • Cancer Center of Kansas, PA - Wichita
      • Wichita, Kansas, Stany Zjednoczone, 67214
        • CCOP - Wichita
      • Wichita, Kansas, Stany Zjednoczone, 67214
        • Via Christi Cancer Center at Via Christi Regional Medical Center
      • Wichita, Kansas, Stany Zjednoczone, 67208
        • Associates in Womens Health, PA - North Review
      • Winfield, Kansas, Stany Zjednoczone, 67156
        • Cancer Center of Kansas, PA - Winfield
    • Michigan
      • Adrian, Michigan, Stany Zjednoczone, 49221
        • Hickman Cancer Center at Bixby Medical Center
      • Lambertville, Michigan, Stany Zjednoczone, 48144
        • Haematology-Oncology Associates of Ohio and Michigan, PC
      • Monroe, Michigan, Stany Zjednoczone, 48162
        • Community Cancer Center of Monroe
      • Monroe, Michigan, Stany Zjednoczone, 48162
        • Mercy Memorial Hospital - Monroe
    • Minnesota
      • Bemidji, Minnesota, Stany Zjednoczone, 56601
        • MeritCare Bemidji
      • Burnsville, Minnesota, Stany Zjednoczone, 55337
        • Fairview Ridges Hospital
      • Coon Rapids, Minnesota, Stany Zjednoczone, 55433
        • Mercy and Unity Cancer Center at Mercy Hospital
      • Duluth, Minnesota, Stany Zjednoczone, 55805
        • CCOP - Duluth
      • Duluth, Minnesota, Stany Zjednoczone, 55805-1983
        • Duluth Clinic Cancer Center - Duluth
      • Duluth, Minnesota, Stany Zjednoczone, 55805
        • Miller - Dwan Medical Center
      • Edina, Minnesota, Stany Zjednoczone, 55435
        • Fairview Southdale Hospital
      • Fridley, Minnesota, Stany Zjednoczone, 55432
        • Mercy and Unity Cancer Center at Unity Hospital
      • Hutchinson, Minnesota, Stany Zjednoczone, 55350
        • Hutchinson Area Health Care
      • Lichfield, Minnesota, Stany Zjednoczone, 55355
        • Meeker County Memorial Hospital
      • Mankato, Minnesota, Stany Zjednoczone, 56002
        • Immanuel St. Joseph's
      • Maplewood, Minnesota, Stany Zjednoczone, 55109
        • Minnesota Oncology Hematology, PA - Maplewood
      • Maplewood, Minnesota, Stany Zjednoczone, 55109
        • HealthEast Cancer Care at St. John's Hospital
      • Minneapolis, Minnesota, Stany Zjednoczone, 55407
        • Virginia Piper Cancer Institute at Abbott - Northwestern Hospital
      • Minneapolis, Minnesota, Stany Zjednoczone, 55415
        • Hennepin County Medical Center - Minneapolis
      • Robbinsdale, Minnesota, Stany Zjednoczone, 55422-2900
        • Hubert H. Humphrey Cancer Center at North Memorial Outpatient Center
      • Saint Louis Park, Minnesota, Stany Zjednoczone, 55416
        • CCOP - Metro-Minnesota
      • Saint Louis Park, Minnesota, Stany Zjednoczone, 55416
        • Park Nicollet Cancer Center
      • Saint Paul, Minnesota, Stany Zjednoczone, 55102
        • United Hospital
      • Saint Paul, Minnesota, Stany Zjednoczone, 55102
        • HealthEast Cancer Care at St. Joseph's Hospital
      • Shakopee, Minnesota, Stany Zjednoczone, 55379
        • St. Francis Cancer Center at St. Francis Medical Center
      • St. Paul, Minnesota, Stany Zjednoczone, 55101
        • Regions Hospital Cancer Care Center
      • Waconia, Minnesota, Stany Zjednoczone, 55387
        • Ridgeview Medical Center
      • Woodbury, Minnesota, Stany Zjednoczone, 55125
        • Minnesota Oncology Hematology, PA - Woodbury
      • Woodbury, Minnesota, Stany Zjednoczone, 55125
        • HealthEast Cancer Care at Woodwinds Health Campus
    • Missouri
      • Saint Louis, Missouri, Stany Zjednoczone, 63131
        • Missouri Baptist Cancer Center
      • Saint Louis, Missouri, Stany Zjednoczone, 63141
        • Arch Medical Services, Incorporated at Center for Cancer Care and Research
    • Montana
      • Billings, Montana, Stany Zjednoczone, 59101
        • CCOP - Montana Cancer Consortium
      • Billings, Montana, Stany Zjednoczone, 59101
        • Hematology-Oncology Centers of the Northern Rockies - Billings
      • Billings, Montana, Stany Zjednoczone, 59101
        • Northern Rockies Radiation Oncology Center
      • Billings, Montana, Stany Zjednoczone, 59101
        • St. Vincent Healthcare Cancer Care Services
      • Billings, Montana, Stany Zjednoczone, 59107-7000
        • Billings Clinic - Downtown
      • Bozeman, Montana, Stany Zjednoczone, 59715
        • Bozeman Deaconess Cancer Center
      • Butte, Montana, Stany Zjednoczone, 59701
        • St. James Healthcare Cancer Care
      • Great Falls, Montana, Stany Zjednoczone, 59405
        • Great Falls Clinic - Main Facility
      • Great Falls, Montana, Stany Zjednoczone, 59405
      • Helena, Montana, Stany Zjednoczone, 59601
        • St. Peter's Hospital
      • Kalispell, Montana, Stany Zjednoczone, 59901
        • Kalispell Regional Medical Center
      • Kalispell, Montana, Stany Zjednoczone, 59901
        • Glacier Oncology, PLLC
      • Kalispell, Montana, Stany Zjednoczone, 59901
        • Kalispell Medical Oncology at KRMC
      • Missoula, Montana, Stany Zjednoczone, 59801
        • Community Medical Center
      • Missoula, Montana, Stany Zjednoczone, 59804
        • Guardian Oncology and Center for Wellness
      • Missoula, Montana, Stany Zjednoczone, 59807-7877
        • Montana Cancer Specialists at Montana Cancer Center
      • Missoula, Montana, Stany Zjednoczone, 59807
        • Montana Cancer Center at St. Patrick Hospital and Health Sciences Center
    • North Carolina
      • Rutherfordton, North Carolina, Stany Zjednoczone, 28139
        • Rutherford Hospital
    • North Dakota
      • Bismarck, North Dakota, Stany Zjednoczone, 58501
        • Bismarck Cancer Center
      • Bismarck, North Dakota, Stany Zjednoczone, 58501
        • Medcenter One Hospital Cancer Care Center
      • Bismarck, North Dakota, Stany Zjednoczone, 58501
        • Mid Dakota Clinic, PC
      • Bismarck, North Dakota, Stany Zjednoczone, 58502
        • St. Alexius Medical Center Cancer Center
      • Fargo, North Dakota, Stany Zjednoczone, 58122
        • CCOP - MeritCare Hospital
      • Fargo, North Dakota, Stany Zjednoczone, 58122
        • MeritCare Broadway
    • Ohio
      • Bellefontaine, Ohio, Stany Zjednoczone, 43311
        • Mary Rutan Hospital
      • Bowling Green, Ohio, Stany Zjednoczone, 43402
        • Wood County Oncology Center
      • Chillicothe, Ohio, Stany Zjednoczone, 45601
        • Adena Regional Medical Center
      • Columbus, Ohio, Stany Zjednoczone, 43214-3998
        • Riverside Methodist Hospital Cancer Care
      • Columbus, Ohio, Stany Zjednoczone, 43222
        • Mount Carmel Health - West Hospital
      • Columbus, Ohio, Stany Zjednoczone, 43215
        • CCOP - Columbus
      • Columbus, Ohio, Stany Zjednoczone, 43215
        • Grant Medical Center Cancer Care
      • Columbus, Ohio, Stany Zjednoczone, 43228
        • Doctors Hospital at Ohio Health
      • Dayton, Ohio, Stany Zjednoczone, 45405
        • Grandview Hospital
      • Dayton, Ohio, Stany Zjednoczone, 45406
        • Good Samaritan Hospital
      • Dayton, Ohio, Stany Zjednoczone, 45415
        • Samaritan North Cancer Care Center
      • Dayton, Ohio, Stany Zjednoczone, 45429
        • CCOP - Dayton
      • Delaware, Ohio, Stany Zjednoczone, 43015
        • Grady Memorial Hospital
      • Elyria, Ohio, Stany Zjednoczone, 44035
        • Hematology Oncology Center
      • Findlay, Ohio, Stany Zjednoczone, 45840
        • Blanchard Valley Medical Associates
      • Franklin, Ohio, Stany Zjednoczone, 45005-1066
        • Middletown Regional Hospital
      • Kettering, Ohio, Stany Zjednoczone, 45429
        • Charles F. Kettering Memorial Hospital
      • Lancaster, Ohio, Stany Zjednoczone, 43130
        • Fairfield Medical Center
      • Lima, Ohio, Stany Zjednoczone, 45804
        • Lima Memorial Hospital
      • Marietta, Ohio, Stany Zjednoczone, 45750
        • Strecker Cancer Center at Marietta Memorial Hospital
      • Maumee, Ohio, Stany Zjednoczone, 43537
        • Northwest Ohio Oncology Center
      • Maumee, Ohio, Stany Zjednoczone, 43537
        • St. Luke's Hospital
      • Newark, Ohio, Stany Zjednoczone, 43055
        • Licking Memorial Cancer Care Program at Licking Memorial Hospital
      • Oregon, Ohio, Stany Zjednoczone, 43616
        • St. Charles Mercy Hospital
      • Oregon, Ohio, Stany Zjednoczone, 43616
        • Toledo Clinic - Oregon
      • Sandusky, Ohio, Stany Zjednoczone, 44870
        • Firelands Regional Medical Center
      • Sandusky, Ohio, Stany Zjednoczone, 44870
        • North Coast Cancer Care, Incorporated
      • Springfield, Ohio, Stany Zjednoczone, 45505
        • Community Hospital of Springfield and Clark County
      • Springfield, Ohio, Stany Zjednoczone, 45504
        • Mercy Medical Center
      • Sylvania, Ohio, Stany Zjednoczone, 43560
        • Flower Hospital Cancer Center
      • Tiffin, Ohio, Stany Zjednoczone, 44883
        • Mercy Hospital of Tiffin
      • Toledo, Ohio, Stany Zjednoczone, 43608
        • St. Vincent Mercy Medical Center
      • Toledo, Ohio, Stany Zjednoczone, 43606
        • Toledo Hospital
      • Toledo, Ohio, Stany Zjednoczone, 43614
        • Medical University of Ohio Cancer Center
      • Toledo, Ohio, Stany Zjednoczone, 43617
        • CCOP - Toledo Community Hospital
      • Toledo, Ohio, Stany Zjednoczone, 43623
        • Toledo Clinic, Incorporated - Main Clinic
      • Troy, Ohio, Stany Zjednoczone, 45373-1300
        • UVMC Cancer Care Center at Upper Valley Medical Center
      • Wauseon, Ohio, Stany Zjednoczone, 43567
        • Fulton County Health Center
      • Westerville, Ohio, Stany Zjednoczone, 43081
        • Mount Carmel St. Ann's Cancer Center
      • Wilmington, Ohio, Stany Zjednoczone, 45177
        • Clinton Memorial Hospital
      • Xenia, Ohio, Stany Zjednoczone, 45385
        • Ruth G. McMillan Cancer Center at Greene Memorial Hospital
      • Zanesville, Ohio, Stany Zjednoczone, 43701
        • Genesis - Good Samaritan Hospital
    • Oklahoma
      • Tulsa, Oklahoma, Stany Zjednoczone, 74136
        • Natalie Warren Bryant Cancer Center at St. Francis Hospital
    • Pennsylvania
      • Danville, Pennsylvania, Stany Zjednoczone, 17822-0001
        • Geisinger Cancer Institute at Geisinger Health
      • Hazleton, Pennsylvania, Stany Zjednoczone, 18201
        • Geisinger Hazleton Cancer Center
      • State College, Pennsylvania, Stany Zjednoczone, 16801
        • Geisinger Medical Group - Scenery Park
      • Wilkes-Barre, Pennsylvania, Stany Zjednoczone, 18711
        • Frank M. and Dorothea Henry Cancer Center at Geisinger Wyoming Valley Medical Center
      • Wilkes-Barre, Pennsylvania, Stany Zjednoczone, 18765
        • Mercy Hospital at Wilkes-Barre
    • South Carolina
      • Anderson, South Carolina, Stany Zjednoczone, 29621
        • AnMed Cancer Center
      • Spartanburg, South Carolina, Stany Zjednoczone, 29303
        • CCOP - Upstate Carolina
      • Spartanburg, South Carolina, Stany Zjednoczone, 29303
        • Gibbs Regional Cancer Center at Spartanburg Regional Medical Center
    • South Dakota
      • Rapid City, South Dakota, Stany Zjednoczone, 57701
        • Rapid City Regional Hospital
      • Sioux Falls, South Dakota, Stany Zjednoczone, 57105
        • Avera Cancer Institute
      • Sioux Falls, South Dakota, Stany Zjednoczone, 57105
        • Medical X-Ray Center, PC
      • Sioux Falls, South Dakota, Stany Zjednoczone, 57117-5039
        • Sanford Cancer Center at Sanford USD Medical Center
    • Virginia
      • Fredericksburg, Virginia, Stany Zjednoczone, 22401
        • Fredericksburg Oncology, Incorporated
    • Washington
      • Kirkland, Washington, Stany Zjednoczone, 98033
        • Cascade Cancer Center at Evergreen Hospital Medical Center
      • Port Angeles, Washington, Stany Zjednoczone, 98362
        • Olympic Medical Center
      • Renton, Washington, Stany Zjednoczone, 98055
        • Southlake Clinic
      • Seattle, Washington, Stany Zjednoczone, 98101
        • Virginia Mason Medical Center
      • Seattle, Washington, Stany Zjednoczone, 98101
        • CCOP - Virginia Mason Research Center
    • Wyoming
      • Sheridan, Wyoming, Stany Zjednoczone, 82801
        • Welch Cancer Center at Sheridan Memorial Hospital

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

18 lat i starsze (Dorosły, Starszy dorosły)

Akceptuje zdrowych ochotników

Nie

Płeć kwalifikująca się do nauki

Kobieta

Metoda próbkowania

Próbka bez prawdopodobieństwa

Badana populacja

Postmenopausal women with breast cancer.

Opis

DISEASE CHARACTERISTICS:

Inclusion criteria:

  • Must have histologically confirmed invasive breast cancer, as defined by the following TNM staging criteria:

    • pT1, pT2, or pT3
    • pNx, pN0, pN1, pN2, or pN3*

      • Patients with positive sentinel node biopsies (pN1) must have subsequent axillary dissection to be eligible
      • Patients with negative sentinel node biopsies (pN0) do not require axillary surgery for study eligibility
    • M0, according to the following radiologic studies:

      • Bone scan (required only if alkaline phosphatase is > 2 x institutional upper limit of normal [ULN] and/or there are symptoms of metastatic disease)

        • A confirmatory x-ray or other imaging study, such as CT scan or MRI, is required if the results from the bone scan are questionable
      • Abdominal ultrasound or CT scan of the abdomen (required only if AST/ALT or alkaline phosphatase is > 2 x ULN unless the elevation is in the bone fraction)
      • Chest x-ray NOTE: *Only when the sole basis for this classification is the presence of 10 or more involved axillary nodes
  • Completely resected disease

    • Surgical margins must be clear of invasive carcinoma and ductal carcinoma in situ or lobular carcinoma in situ
  • Must have one intact, noncancerous breast with no history of previous breast surgery in that breast (other than a breast biopsy)

    • Mammogram of the intact, noncancerous breast required ≤ 6 months prior to study registration (both a craniocaudal [top down] and mediolateral oblique view [side view] must be available)
  • Must be registered on this study ≥ 3 weeks but ≤ 3 months after completion of chemotherapy OR primary surgery*

    • Adjuvant chemotherapy and radiation therapy as prescribed by the local institution is allowed provided patient is registered on this study and hormonal treatment is begun as soon as patient has sufficiently recovered from chemotherapy NOTE: *Primary surgery is defined as the last surgical procedure to remove invasive or in situ disease
  • Planning to receive anastrozole or exemestane for ≥ 1 year for treatment of breast cancer
  • Hormone receptor status:

    • Estrogen receptor- and/or progesterone receptor-positive (defined as a tumor receptor content of > 10 fmol/mg protein OR receptor-positive by immunohistochemistry [ERICA or PgRICA])

PATIENT CHARACTERISTICS:

Inclusion criteria:

  • Female
  • Postmenopausal, defined by one of the following:

    • Age > 60 years
    • Age 45-59 years with spontaneous cessation of menses > 12 months prior to chemotherapy (if no chemotherapy was given, then prior to study registration)
    • Age 45-59 years with cessation of menses for a duration of < 12 months or secondary to hysterectomy AND an FSH level in the postmenopausal range (or ≥ 34.4 IU/L, if institutional range is not available) prior to chemotherapy (if no chemotherapy was given, then prior to study registration)
    • Age 45-59 years with an FSH level in the postmenopausal range according to institutional laboratory standards (or > 34.4 IU/L, if the institutional range is not available) prior to chemotherapy (if no chemotherapy was given, then prior to study registration)
    • Bilateral oophorectomy
  • ECOG performance status 0, 1, or 2
  • Life expectancy ≥ 5 years

Exclusion criteria:

  • History of other (non-breast) malignancies, except adequately treated nonmelanoma skin cancer, curatively treated in situ cancer of the cervix, or other curatively treated solid tumors with no evidence of disease for > 5 years
  • Any co-existing medical or psychiatric condition that is likely to interfere with study procedures and/or results

PRIOR CONCURRENT THERAPY:

Inclusion criteria:

  • See Disease Characteristics

Exclusion criteria:

  • Hormone replacement therapy, oral contraceptives, tamoxifen, raloxifene, other selective estrogen-receptor modulators, or gonadotropin releasing-hormone analogues ≤ 6 months prior to the pre-registration mammogram
  • Prior treatment with an aromatase inhibitor (e.g., anastrozole, exemestane, letrozole)
  • Planned surgery (other than core needle biopsy) to intact non-cancerous breast (e.g., preventive/prophylactic mastectomy)

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

Kohorty i interwencje

Grupa / Kohorta
Interwencja / Leczenie
Group 1

Patients undergo blood sample collection at baseline and at 1 year after initiation of aromatase inhibitor therapy (anastrozole or exemestane). Samples are analyzed for estrogen and testosterone levels and additional hormone levels and growth factors that have been previously linked with breast density and that could be altered by aromatase inhibitor use (i.e., sex hormone-binding globulin [SHBG], DHEA, DHEA sulfate, progesterone, prolactin, insulin-like growth factor-1 [IGF-1], and insulin-like growth factor binding protein 3 [IGF BP3]). Samples are also analyzed for anastrozole and exemestane levels by HPLC. Pharmacogenetic studies are also performed. Haplotype-tagged single nucleotide polymorphisms in genes in the aromatase pathway are examined.

Patients also undergo mammogram at baseline (≤ 6 months prior to study registration) and at 1 year after initiation of aromatase inhibitor therapy.

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Ramy czasowe
Changes in percent breast density in response to 1 year of aromatase inhibitor therapy
Ramy czasowe: Up to 12 months
Up to 12 months
Changes in dense area in response to 1 year of aromatase inhibitor therapy
Ramy czasowe: Up to 12 months
Up to 12 months
Correlation of changes in percent breast density with changes in plasma hormone levels and drug levels
Ramy czasowe: Up to 12 months
Up to 12 months
Correlation of changes in dense area with changes in plasma hormone levels and drug levels
Ramy czasowe: Up to 12 months
Up to 12 months
Comparison of percent breast density in women with high pre-treatment percent density vs women with low pre-treatment percent density
Ramy czasowe: Up to 12 months
Up to 12 months
Comparison of dense area in women with high pre-treatment dense area vs women with low pre-treatment dense area
Ramy czasowe: Up to 12 months
Up to 12 months
Associations of haplotype-tagged single nucleotide polymorphisms in genes in the aromatase pathway with changes in percent and area density, plasma hormone levels, and drug levels after 1 year of aromatase inhibitor therapy
Ramy czasowe: Up to 12 months
Up to 12 months

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów

1 września 2007

Zakończenie podstawowe (Rzeczywisty)

1 grudnia 2009

Ukończenie studiów (Rzeczywisty)

1 grudnia 2009

Daty rejestracji na studia

Pierwszy przesłany

14 sierpnia 2007

Pierwszy przesłany, który spełnia kryteria kontroli jakości

14 sierpnia 2007

Pierwszy wysłany (Oszacować)

15 sierpnia 2007

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Oszacować)

13 lipca 2016

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

12 lipca 2016

Ostatnia weryfikacja

1 lipca 2016

Więcej informacji

Terminy związane z tym badaniem

Inne numery identyfikacyjne badania

  • NCCTG-N063I
  • NCI-2012-02719 (Identyfikator rejestru: CTRP (Clinical Trials Reporting System))
  • CDR0000560200 (Identyfikator rejestru: PDQ (Physician Data Query))

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .

Badania kliniczne na Rak piersi

Badania kliniczne na analiza polimorfizmu

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