IMRT Followed by CyberKnife Boost Focused on the Gross Residual Pelvic Tumor Volume (Boost_Pelvis)
Intensity Modulated Radiation Treatments Followed by A Stereotactic CyberKnife Boost Focused on the Gross Residual Pelvic Tumor Volume
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
This register concerned patients with any kind of non-resected pelvic cancer for which a brachytherapy Gross Tumor Volume (GTV) boost is non indicated.
- Placement of fiducials First of all, fiducials will be placed near or inside the Gross Tumor Volume (GTV).
- Radiation treatment The radiation treatment will be delivered by Varian Rapid ARC accelerators. 50 Gy will be delivered in the Planning Tumor Volume (PTV) 1 and 60 Gy in the PTV 2 simultaneously in 28 fractions (5 fractions a week) in no more than 40 days. Anytime, 95% of the prescribed dose will have to cover at least 90% of the PTV 1 and PTV 2.
- CK Boost pelvis In the following 14 days after the external beam treatment, two high CyberKnife dose sessions will deliver a pelvic boost of 6.5 Gy each to the initial GTV or eventually to the residual GTV in case of too close vicinity of the organs at risk (OAR). This boost will be planned according to a recent paper, using a new CT scan and MRI scan for planimetric purposes. 95% of the prescribed dose will have to cover at least 90% of the PTV. The maximal CyberKnife tolerated doses to the OAR for a 6.5 Gy dose will be 5 Gy to 2cc of the bladder, rectum or sigmoid structures and 2.5 Gy to 5 cc of the small bowel. The protocol will not require a dose summation of the different steps of the treatment. The total duration of the whole treatment will have to be inferior to 55 days.
4 Follow-up The clinical follow up will be planed weekly during the radiation treatments, and at 2, 4 and 6 months thereafter. The patients will be then followed up every 4 months during the first 2 years and twice yearly thereafter.
A medical imaging using PET Scanner and MRI when possible will be performed at least at 6 months intervals during the first 2 years.
研究の種類
研究の種類
入学 (予想される)
入学
連絡先と場所
研究場所
-
-
SUD
-
Esch-sur-Alzette、SUD、ルクセンブルク、L-4240
- Centre Francois Baclesse
-
-
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
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- any kind of locally advanced pelvic tumor, non-operable for any reason
- signed informed consent
- concomitant chemotherapy or hormonotherapy unless gemcitabine will not be contraindicated during the treatment
Exclusion Criteria:
- possibility to easily offer the patient a brachytherapy boost
- extra pelvic tumor dissemination above the L3 vertebra
- collagenoses
- any bowel tumor when the digestive tract is not definitely and locally bypassed
- any biologic targeted therapy or anti angiogenic therapy within the 6 weeks preceding the initiation of the radiation treatment, for the first 20 patients. This point will be revisited afterwards and will conduct to an amendment in case of protocol modification
- gemcitabine chemotherapy within the 6 weeks preceding the initiation of the radiation treatment or during the treatment
- hip prostheses
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
グループ/コホートの数
コホートと介入
グループ/コホートグループ/コホート |
介入・治療介入・治療 |
|---|---|
|
CK Boost pelvis
|
50 Gy will be delivered in the PTV 1 and 60 Gy in the PTV 2 simultaneously in 28 fractions (5 fractions a week) in no more than 40 days.
Anytime, 95% of the prescribed dose will have to cover at least 90% of the PTV 1 and PTV 2.
Two high CyberKnife dose sessions will deliver a pelvic boost of 6.5 Gy each to the initial GTV or eventually to the residual GTV in case of too close vicinity of the OAR
|
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 |
|---|---|---|
|
Severe toxicity
時間枠:follow up during 3 years after patient inclusion
|
The objective is to confirm an expected toxicity level of severe toxicity < 5%
|
follow up during 3 years after patient inclusion
|
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 |
|---|---|---|
|
Local clinical control rates
時間枠:follow up during 3 years after patient inclusion
|
Ths objective is to study the local control rates defined by a study panel board including at least a radiologist specially trained to review the imaging data after high radiation doses per fraction and the coordinator of the register, using PET Scanner, MRI and clinical data
|
follow up during 3 years after patient inclusion
|
|
Extra pelvic dissemination rates
時間枠:follow up during 3 years after patient inclusion
|
The objective is to study the dissemination data of the disease above the pelvis
|
follow up during 3 years after patient inclusion
|
|
Ability of the multi leaf collimator to better cover the PTVs and to help shortening the delivery times
時間枠:follow up during 3 years after patient inclusion
|
Using the different Conformal Index modalities, the objective is to compare the treatment planning with or without using the multi leaf collimator
|
follow up during 3 years after patient inclusion
|
協力者と研究者
研究記録日
主要日程の研究
研究開始 (実際)
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 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
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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