Aromatase Inhibitors in Premenopausal Breast Cancer Patients With Chemotherapy-Induced Ovarian Failure
Women with hormone-receptor positive breast cancer are typically treated with hormone therapy as part of their treatment after surgery. In the past few years it has been found that treatment with aromatase inhibitors is superior to tamoxifen in postmenopausal women. Tamoxifen is still used for premenopausal women, however, because aromatase inhibitors are not effective in women who have functioning ovaries. Some women are premenopausal at the time they are diagnosed with breast cancer, but then stop having menstrual periods when they are treated with chemotherapy. It is unclear if these women can also be treated safely with aromatase inhibitors.
In this clinical trial the researchers will try to answer this question. Women with hormone receptor positive breast cancer who become postmenopausal with chemotherapy will be invited to participate in this study. Each woman will be treated with one of the aromatase inhibitors, anastrozole (Arimidex), and then carefully monitored to ensure that her ovaries do not start making estrogen. If her estrogen level remains low, then she will continued to be followed for 18 months. If the level increases to the level typically seen in premenopausal women, however, then she will stop taking part in this study.
The study will also evaluate multiple factors that may help doctors predict who will tolerate the therapy without having their ovaries start making estrogen again. Some of the factors to be evaluated include other hormone levels (blood tests) as well as family history of early menopause (mother, sisters). In addition, changes in certain genes that affect how patients' bodies handle chemotherapy drugs will be tested to see if they affect whether or not patients recover ovarian function. Overall, the purpose of the study is to determine which patients who become postmenopausal from chemotherapy are likely to tolerate aromatase inhibitor treatment safely, and how often the patients' ovarian function needs to be tested during treatment.
調査の概要
研究の種類
入学 (実際)
段階
- フェーズ2
連絡先と場所
研究場所
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Maryland
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Baltimore、Maryland、アメリカ、21231-2410
- Sidney Kimmel Comprehensive Center at Johns Hopkins
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Massachusetts
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Boston、Massachusetts、アメリカ、02115
- Dana-Farber Cancer Center
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Michigan
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Ann Arbor、Michigan、アメリカ、48109
- University of Michigan
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
To be eligible for this study:
- You must be at least 18 years of age and not older than 60 years of age
- You have breast cancer which was confined to the breast and lymph nodes under the arm, and have no evidence of cancer elsewhere
- You must have had surgical removal of your tumor, and if indicated, radiation therapy must have been completed or planned
- Your tumor must express estrogen and/or progesterone receptors
- You must have had a menstrual period within 6 months before starting chemotherapy for your breast cancer.
- You must have been treated with a chemotherapy regimen that includes cyclophosphamide (Cytoxan). Your menstrual periods must have stopped for at least 8 weeks starting during or after chemotherapy.
Exclusion Criteria:
You are not eligible to participate in this study if:
1. Your ovaries have been surgically removed, treated with radiation therapy, or if you are taking medications (Zoladex™ or Lupron™) to block the function of your ovaries.
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：処理
- 割り当て：なし
- 介入モデル：単一グループの割り当て
- マスキング：なし（オープンラベル）
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的：anastrozole
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1 mg tablet by mouth once a day
他の名前：
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
The Number of Women Who Recover Ovarian Function Within 12 Months of Al Monotherapy
時間枠：12 months
|
In part 1 ovarian function recurrence is defined as one estradiol value >20 pg/ml or two consecutive values >10 pg/ml.
In part 2 ovarian function recurrence is defined as a >75% increase in estradiol levels over prior if prior value was 15-30 pg/ml, or one estradiol value >30 pg/ml, or three consecutive values >20 pg/ml.
|
12 months
|
協力者と研究者
捜査官
- 主任研究者：Norah L. Henry, M.D., Ph.D.、University of Michigan
出版物と役立つリンク
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- UMCC 2007.044
- HUM 12443 (その他の識別子：University of Michigan Medical IRB)
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。