Radiation Treatment of the Prostate That is Specially Adjusted for Each Person
DOSE ADAPTED PERSONALIZED ABLATIVE RADIOTHERAPY OF THE PROSTATE
A number of recent studies have successfully reduced the number of radiotherapy treatments used for prostate cancer from 39 daily treatments to as little as 5 treatments. This study is designed to determine how tumors inside the prostate respond during these 5 treatments on magnetic resonance imaging (MRI) and use that information to design 2 fraction radiotherapy treatments for prostate cancer.
For these two fraction treatments, the first fraction of radiation will use extra radiation to any nodules in the prostate, and the second fraction of radiation will give extra radiation to the nodule(s) in the prostate based on how those nodules responded to the first fraction of radiation. This idea is a relatively old concept but has not been used in the treatment of cancer yet. This research includes a clinical trial that evaluates whether it is safe to design treatments like this.
調査の概要
研究の種類
入学 (推定)
段階
- フェーズ2
連絡先と場所
研究連絡先
- 名前:Charlie Kirkby
- 電話番号:403-388-6872
- メール:Charles.Kirkby@cancercarealberta.ca
研究連絡先のバックアップ
- 名前:Asongna Folefoc
- メール:Asongna.Folefoc@cancercarealberta.ca
研究場所
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Alberta
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Lethbridge、Alberta、カナダ、T1J 3H5
- 募集
- Jack Ady Cancer Centre
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コンタクト:
- Charlie Kirkby
- 電話番号:403-388-6872
- メール:Charles.Kirkby@cancercarealberta.ca
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コンタクト:
- Kevin Martell
- メール:Kevin.Martell@CancerCareAlberta.ca
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参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Histologically confirmed adenocarcinoma of the prostate
- NCCN risk grouping of intermediate or high risk prostate cancer
- Patients must be 18 years of age, or older on the day of signing informed consent and be willing and able to provide written informed consent/assent
- Identifiable lesion within the epithelium of the prostate as determined by the treating radiation oncologist
- Have a prostate imaging reporting and data system (PIRADS) 4 or 5 nodule noted on MRI
- Have not received prior pelvic radiotherapy
- Life expectancy greater than 10 years
- ECOG performance status <3
- Eligible for SBRT to the prostate
Exclusion Criteria:
- No identifiable lesion within the prostate on 3T MRI
- Prior trans-urethral resection of the prostate
- Non-adenocarcinoma histology
- Meeting criteria for very high-risk risk or node positive prostate cancer
- Active inflammatory bowel disease
- Evidence of metastatic disease on CT or bone scan
- Declined radiotherapy
- Unlikely to be available for all follow-up appointments
- Having received androgen deprivation therapy or 5-alpha reductase therapy prior to trial therapy
- Extensive disease in the posterior prostate or aberrant anatomy that makes the safe delivery of boost irradiation not feasible
- Unable to understand or sign a study consent form after use of interpreter if required
- Has a relative contraindication to radiotherapy including systemic lupus erythematosus, TNM deficiency or scleroderma
- Unable to tolerate or ineligible for mpMR imaging
- Any condition or diagnosis, that could in the opinion of the treating physician or qualified investigator interfere with the participant's ability to comply with study instructions, might confound the interpretation of the study results, or put the participant at risk
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:非ランダム化
- 介入モデル:順次割り当て
- 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:Arm 1/Stage 1: 5 weeks
The first group of 25 patients enrolled will receive 5 fractions of radiotherapy to their prostate with or without radiotherapy to their pelvic lymph nodes and an MRI midway through the treatment to assess the response of disease.
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External beam radiotherapy via stereotactic body radiotherapy (SBRT).
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実験的:Arm 2/Stage 2: 3 weeks
The second group of 25 patients enrolled in this study will receive a single fraction of radiation to the prostate +/- pelvis with extra radiation to any nodule(s)/tumors in the prostate identified on MR.
They will then have a second MR after 3 weeks and based on that MR a second fraction of radiation to the prostate +/- pelvis will be delivered.
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External beam radiotherapy via stereotactic body radiotherapy (SBRT).
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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 |
|---|---|---|
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Incidence
時間枠:Baseline 3 weeks (includes treatment period for Arm 1 and 2) 1 month (includes treatment period for Arm 1) 3 months 6 months 2 years
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Cumulative incidence of acute common terminology criteria for adverse events (CTCAE) v6.0 ≥ grade 2 genitourinary (GU) toxicity
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Baseline 3 weeks (includes treatment period for Arm 1 and 2) 1 month (includes treatment period for Arm 1) 3 months 6 months 2 years
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Incidence
時間枠:Baseline 3 weeks 1 month 3 months 6 months 2 years
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Cumulative incidence of acute CTCAE v6.0 ≥ grade 2 gastrointestinal (GI) toxicity
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Baseline 3 weeks 1 month 3 months 6 months 2 years
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Incidence
時間枠:2 years
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Cumulative incidence of CTCAE v6.0 ≥ grade 2 GU toxicity at 2 years
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2 years
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Incidence
時間枠:2 years
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Cumulative incidence of CTCAE v6.0 ≥ grade 2 GI toxicity at 2 years
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2 years
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international index of erectile function (IIEF-5)
時間枠:Baseline 3 weeks 1 month 3 months 6 months 2 years
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IIEF-5 is a 5-item questionnaire (with a 1- 5 score for each item, 1 being the lowest or worst and 5 the highest/best) used to diagnose erectile disfunction.
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Baseline 3 weeks 1 month 3 months 6 months 2 years
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expanded prostate cancer index composite (EPIC)
時間枠:1 month and 2 years post treatment
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EPIC is a questionnaire designed to measure Quality of Life issues in patients with Prostate cancer.
Overall GU domain is scored from 1 to 5 with 1 being "No problem" and 5 being "Big problem"
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1 month and 2 years post treatment
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EPIC GI
時間枠:1 month and 2 years post treatment
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EPIC GI is about bowel habits and abdominal pain and has an overall score of1 - 5 with 1 being "No problem" and 5 being "Big problem"
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1 month and 2 years post treatment
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PSA
時間枠:2 years post treatment
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Proportion of patients with PSA <0.4ng/mL at 2 years post treatment
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2 years post treatment
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PSA nadir
時間枠:2 years post treatment
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Absolute PSA nadir at 2 years post treatment (all therapy)
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2 years post treatment
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MRI
時間枠:treatment week 3
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MRI based radiographic response of DIL at on treatment week 3
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treatment week 3
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MRI response
時間枠:6 months post treatment
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MRI based radiographic response at 6 months post treatment
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6 months post treatment
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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)
一次修了 (推定)
研究の完了 (推定)
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 (実際)
学習記録の更新
投稿された最後の更新 (実際)
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。