Study of Circulating and Tumor Biomarkers in Breast Cancer Patients
Aims: To evaluate the role of monoclonal antibodies in the detection of cancer specific antigens in blood and tumor tissue, and the potential use of these antibodies for future evaluation for therapy. Also, to evaluate the presence of circulating tumor cells (CTCs) and to study EMT (epithelial-mesenchymal) signature changes during chemotherapy.
Methods: To take 20mls of blood from advanced breast cancer patients before a new course of anti-cancer therapy, and another 20mls of blood 3 weeks after treatment. In addition, Consent will be obtained to cut 10-15 tissue sections from their archival tumor specimens. Whenever possible, the blood taking will be timed such that no additional needle prick will be done specifically for the purpose of the study, by coinciding it with standard blood taking which is required for the patient's treatment.
Importance of proposed research to science or medicine:Detection of tumor specific antigens in the blood may potentially reduce the need for more invasive biopsies for confirmation of diagnosis of cancer or follow-up of cancer in the future. The identification and development of antibodies specific to these tumor antigens or markers may offer future therapeutic options, or as a vehicle to deliver cytotoxic therapy. Identification of CTCs as well as understanding the changes that occur in EMT signature in these circulating tumor cells may serve as a means of potential means of prognostication and modification of therapy in the future.
Potential Benefits and Risks: Potential risks to the patient include that of blood taking (pain, feeling faint, infection). Patients will not benefit directly from the study but the knowledge gained may help the management of future patients.
Cancer biomarkers, such as antigens and circulating tumor cells, may be a potential area to developing new methods of diagnosis and treatment of cancer. Monoclonal antibiotics are now able to be identified and isolated that may specifically target progenitors of breast cancer as well as CTCs. The changes that occur to CTCs during treatment may serve as a means of prognostication, as well as allow for therapeutic modifications. Clinical correlative studies into these areas (MAbs and CTCs) will serve to determine the role of these in clinical application in the future.
調査の概要
状態
条件
研究の種類
入学 (予想される)
連絡先と場所
研究場所
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Singapore、シンガポール
- 募集
- Nationa University Hospital
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コンタクト:
- Soo Chin Lee, MBBS, MRCP
- 電話番号:+65 6779 5555
- メール:Soo_Chin_Lee@nuhs.edu.sg
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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
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Advanced breast cancer patients whose cancer have progressed and are due to start a new course of anti-cancer therapy.The patient needs to have had previous breast cancer surgery at NUH (lumpectomy or mastectomy) or a diagnostic core biopsy for breast cancer, and consent to allow for blood taking and access to archival tissue.
Exclusion Criteria:
- No available archival tumor specimen at NUH.
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
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 |
時間枠 |
---|---|
Detection of cancer specific antigens in blood and tumor tissue
時間枠:1 year
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1 year
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協力者と研究者
出版物と役立つリンク
一般刊行物
- Choo AB, Tan HL, Ang SN, Fong WJ, Chin A, Lo J, Zheng L, Hentze H, Philp RJ, Oh SK, Yap M. Selection against undifferentiated human embryonic stem cells by a cytotoxic antibody recognizing podocalyxin-like protein-1. Stem Cells. 2008 Jun;26(6):1454-63. doi: 10.1634/stemcells.2007-0576. Epub 2008 Mar 20.
- Tan HL, Fong WJ, Lee EH, Yap M, Choo A. mAb 84, a cytotoxic antibody that kills undifferentiated human embryonic stem cells via oncosis. Stem Cells. 2009 Aug;27(8):1792-801. doi: 10.1002/stem.109.
研究記録日
主要日程の研究
研究開始
一次修了 (予想される)
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
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。
乳がんの臨床試験
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