Accelerated Partial Breast Irradiation With 3D-CRT and IMRT (APERT)
Accelerated Partial Breast Irradiation After Breast Conserving Surgery for Low-risk Invasive Breast Cancer: 3D Conformal Radiotherapy (3D-CRT) and Intensity Modulated Radiotherapy (IMRT) - Prospective Phase II Study
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
詳細な説明
It is a sequential phase II trial. Eligible patients after breast conserving surgery (BCS) are treated with accelerated partial breast irradiation (APBI) using three-dimensional conformal radiotherapy (3D-CRT) for the first 45 patients or intensity modulated radiotherapy (IMRT) for the second 45 patients.
Primary end-point of the study: late radiation side-effects at 5 years. Early stopping criteria: Not used as primary end-point is late side-effects. Interim analysis: Not planned Secondary end-points: cosmetic results, quality of life, local recurrence-free survival, regional recurrence free survival, distant metastasis free survival, relapse free survival, overall survival, cancer specific survival.
Null-hypothesis for primary end-point: The incidence of severe (>G2) late radiation side-effects after APBI using 3D-CRT or IMRT will not exceed 10%.
Stratification:
- by treatment delivery: 3D-CRT - first 45 patients; IMRT - second 45 patients
- by bra capsize: Capsize A-B; C; and D-D+
Treatment intervention: 9 x 4.1 Gy APBI using 3D-CRT (first 45 patients) or IMRT (second 45 patients) delivered within 5 days, using twice-a-day fractionation.
Clinical target volume (CTV) and Planning target volume (PTV) definition:
CTV = excision cavity + 20 mm minus the actual pathological surgical margin in mm PTV = CTV + 5 mm in each direction
Follow-up:
- ECOG PS, physical examination (inspection and palpation), registration of side-effects (RTOG (Radiation Therapy Oncology Group) EORTC (European Organization for Research and Treatment of Cancer)) early and late radiation morbidity scoring scheme) and cosmetic results (using the Harvard scale) : 7-14 days after RT, than in every 3 months for 2 years, and every 6 months for 5 years.
- Mammography: at 6, 12, 18, 24 months, and annually thereafter
- Quality of life questionnaire (QLQ) (e.g. EORTC (European Organization for Research and Treatment of Cancer) QLQ-30 and Breast (BR)-23) before RT, at 7-14 days after RT, at 3, 6, and 12 months, and annually thereafter
- digital photography: before treatment, at 7-14 days after treatment, and yearly thereafter
研究の種類
研究の種類
入学 (予想される)
入学
段階
段階
- フェーズ2
連絡先と場所
研究場所
-
-
-
Budapest、ハンガリー、H-1122
- National Institute of Oncology
-
-
参加基準
適格基準
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:
- previous breast conserving surgery within 12 weeks (in case of adjuvant chemotherapy within 28 days after completion of chemotherapy)
- patient age > 40 years
- ECOG performance status: 0-1
- life expectancy >5 years
- invasive ductal, papillary, mucinous, medullary or tubular carcinoma
- unifocal tumor
- pathological tumor size < or = 30 mm
- pathological negative axillary nodal status with axillary dissection or sentinel lymph node biopsy
- surgical clips in the tumor bed
- pathological surgical free margins of at least 2 mm
- written informed consent of patients
Exclusion Criteria:
- Stage III-IV
- multifocal tumor
- extensive intraductal component (EIC)
- ductal or lobular carcinoma in situ (DCIS or LCIS)
- invasive lobular cancer (ILC)
- lymph-vascular invasion (LVI)
- contralateral breast cancer
- history of treatment for previous breast cancer
- lactation or breast feeding women
- Paget-disease of the nipple
- psychiatric disorder
- increased radiosensitivity (e.g. collagen vascular disease)
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)
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
|
実験的:Accelerated partial breast irradiation
Accelerated partial breast irradiation delivered by 3 dimensional conformal radiotherapy or intensity modulated radiotherapy
|
9 x 4.1 Gy accelerated partial breast irradiation delivered by 3D-CRT or IMRT over 5 consecutive days, using twice-a-day fractionation.
|
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
late radiation side-effect
時間枠:5 years
|
Late radiation side-effects at 5 years scored by the RTOG (Radiation Therapy Oncology Group) EORTC (European Organization for Research and Treatment of Cancer) late radiation morbidity scoring scheme
|
5 years
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
cosmetic results
時間枠:5 years
|
cosmetic results at 5 years measured by the Harvard criteria
|
5 years
|
|
local tumor control
時間枠:5 years
|
Local tumor control defined as reappearance of the tumor in the ipsilateral breast
|
5 years
|
|
regional tumor control
時間枠:5 years
|
regional tumor control at 5 years
|
5 years
|
|
overall survival
時間枠:5 years
|
overall survival at 5 years
|
5 years
|
|
disease free survival
時間枠:5 years
|
disease free survival at 5 years
|
5 years
|
|
cancer specific survival
時間枠:5 years
|
cancer specific survival at 5 years
|
5 years
|
その他の成果指標
その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
quality of life
時間枠:5 years
|
quality of life measured by the EORTC (European Organization for Research and Treatment of Cancer) QLQ-30 and BR-23 questionnaires
|
5 years
|
協力者と研究者
捜査官
捜査官
- スタディチェア:Csaba Polgár, MD, PhD, MSc、National Institute of Oncology
- 主任研究者:Norbert Mészáros, MD、National Institute of Oncology
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
研究開始
一次修了 (予想される)
一次修了
研究の完了 (予想される)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
最初の投稿
学習記録の更新
投稿された最後の更新 (見積もり)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
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
最終確認日
詳しくは
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