Sipuleucel-T and Stereotactic Ablative Body Radiation (SABR) for Metastatic Castrate-resistant Prostate Cancer (mCRPC)
2022年4月11日 更新者：Raquibul Hannan、University of Texas Southwestern Medical Center
Phase II Trial of Sipuleucel-T and Stereotactic Ablative Body Radiation (SABR) for Patients With Metastatic Castrate-resistant Prostate Cancer (mCRPC)
In this i-SABR (immunotherapy + Stereotactic Ablative Body Radiation) trial, the stereotactic radiation to multiple metastatic sites is delivered not only to eradicate sites of bulky progressive disease, but also to provide antigen presentation and immune stimulation which is expected to act synergistically to the concurrently administered immunotherapy Sipuleucel-T and thereby significantly improve the treatment outcome for metastatic castrate resistant prostate cancer patients (mCRPC).
Both Sipuleucel-T and SABR are FDA approved therapeutic cancer treatment
調査の概要
研究の種類
介入
入学 (実際)
20
段階
- フェーズ2
連絡先と場所
このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。
研究場所
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Texas
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Dallas、Texas、アメリカ、75390
- University of Texas Southwestern Medical Center
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参加基準
研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。
適格基準
就学可能な年齢
18年～99年 (大人、高齢者)
健康ボランティアの受け入れ
いいえ
受講資格のある性別
全て
説明
Inclusion Criteria:
- Biopsy proven prostate cancer
- Patient must currently be on androgen deprivation or anti-androgen therapy with castrate levels of testosterone (< 50ng/dl). Medical castration should continue until disease progression
- Radiographic evidence of metastatic disease documented with bone scan or CT scan. Patients with any number of metastatic site are allowed to enroll. However, only up to six sites will be selected for SBRT treatment, at the discretion of the treating radiation oncologist.
- PSA ≥ 5 ng/ml
- Asymptomatic or minimally symptomatic patients1. Visual Analog Scale (VAS) ≤ 4;vNo narcotic use in the last 21 days
- Adequate hematologic, renal, and liver function
- Previous treatment with surgery, radiation or hormonal therapy is allowed.
- Performance status ECOG 0 or 1.
- Life expectancy of at least 6 months
- Negative serology tests for human immunodeficiency virus (HIV) 1 and 2, human T cell lymphotropic virus (HTLV)-1, Hepatitis B and C.
- Age ≥ 18 years.
- Ability to understand and the willingness to sign a written informed consent
Exclusion Criteria:
- Subjects must not have had more than two different regiments of chemotherapy previously or any chemotherapy within the past three months.
- Subjects may not be receiving any other investigational agents for the treatment of prostate cancer.
- Subjects with known brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events.
- Subjects with malignant pleural effusions and malignant ascites
- Systemic corticosteroid use within past 28 days. Use of inhaled, intranasal, and topical steroids is acceptable.
- Systemic immunosuppressive therapy in the past 28 days.
- Use of any of the following within the past 28 days: Megestrol acetate (Megace®), diethyl stilbestrol (DES), or cyproterone acetate, Ketoconazole, high dose calcitriol [1,25(OH)2VitD] (i.e., > 7.0 μg/week).
- Inability to tolerate contrast dye for baseline CT imaging.
- Initiation or discontinuation of biphosphonate use within past 28 days.
- Subjects with pathologic long-bone fractures
- Subjects with spinal cord compression
- Paget's disease of bone.
- Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
研究計画
このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。
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：arm one
Sipuleucel-T and Stereotactic Ablative Body Radiation (SABR)
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他の名前：
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 |
|---|---|---|
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Time to Progression
時間枠：4 years
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To evaluate the improvement in the time to progression (TTP) of metastatic prostate cancer after the combined treatment with sipuleucel-T and SABR to metastatic sites, as compared to the historically reported data with the treatment of sipuleucel-T alone.
Progression will be evaluated in this study using the modified new international criteria proposed by the Response Evaluation Criteria in Solid Tumors (RECIST 1.1) Committee [JNCI 92(3):205-216, 2000] with modifications suggested by PCWG2 [49] recommendations and as used in the Phase III clinical trial by Kantoff et.
al.[10].
Changes in only the largest diameter (one-dimensional measurement) of the tumor lesions are used in the RECIST v1.1 criteria as outlined in http://www.recist.com/.
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4 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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Immune Response
時間枠：6 week
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To evaluate the percentage of participants with Immune response at 6 weeks.
Immune response will be measured using ELISpot assay (with PA2024).
An immune endpoint will be reached by the patient if a >100% increase in immune response is measured by ANY of the assays.
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6 week
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Overall Survival (OS)
時間枠：60 months
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To evaluate the improvement in the overall survival (OS) of mCRPCa patients after the combined treatment with sipuleucel-T and SABR to metastatic sites, as compared to the historically reported data with the treatment of sipuleucel-T alone.
Overall survival (OS) was defined as the duration of time from the start of treatment to the time of death from any cause.
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60 months
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Progression Free Survival (PFS)
時間枠：4 years
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To evaluate the improvement in the progression free survival (PFS) of mCRPCa patients after the combined treatment with sipuleucel-T and SABR to metastatic sites, as compared to the historically reported data with the treatment of sipuleucel-T alone.
Progression free survival (PFS) was defined as the length of time from the start of treatment to disease progression or death from any cause.
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4 years
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Biochemical Progression Free Survival (bPFS)
時間枠：4 years
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To evaluate the improvement in the biochemical progression free survival (bPFS) of mCRPCa patients after the combined treatment with sipuleucel-T and SABR to metastatic sites, as compared to the historically reported data with the treatment of sipuleucel-T alone.
Biochemical progression free survival was defined as the time from the beginning of treatment to PSA (prostate-specific antigen) disease progression.
Biochemical progression was defined as an increase in PSA of > 2 ng/ml from baseline and an increase of > 25% from the baseline value and confirmed by a second measurement more than three weeks later.
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4 years
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Prostate Cancer-specific Survival (PCaSS)
時間枠：4 years
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To evaluate the improvement in the prostate cancer-specific survival (PCaSS) of mCRPCa patients after the combined treatment with sipuleucel-T and SABR to metastatic sites, as compared to the historically reported data with the treatment of sipuleucel-T alone.
Prostate cancer-specific survival was defined as the percentage of patients who had not died from prostate cancer at the time of analysis
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4 years
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Adverse Events
時間枠：60 months
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To evaluate the adverse events for the first 6 months after completion of radiation therapy associated with Sipuleucel-T when administered in combination with SABR to metastatic sites, as compared to the historically reported data with the treatment of Sipuleucel-T alone. Toxicity will be assessed according to the NCI Common Toxicity Criteria for Adverse Events (CTCAE), version 4.0. Adverse events not specifically defined in the NCI CTCAE will be scored on the Adverse Event log according to the general guidelines provided by the NCI CTCAE and as outlined: Grade 1: Mild Grade 2: Moderate Grade 3: Severe or medically significant but not immediately life threatening Grade 4: Life threatening consequences Grade 5: Death related to the adverse event |
60 months
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Cost Effectiveness and Health-related Quality Adjusted Life
時間枠：4 years
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To evaluate the cost effectiveness and health-related quality adjusted life of the combination treatment of SABR and sipuleucel T in patients with mCRPC.
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4 years
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協力者と研究者
ここでは、この調査に関係する人々や組織を見つけることができます。
捜査官
- 主任研究者：Raquibul Hannan, MD, PhD、University of Texas Southwestern Medical Center
研究記録日
これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。
主要日程の研究
研究開始 (実際)
2013年7月10日
一次修了 (実際)
2019年12月20日
研究の完了 (実際)
2021年5月25日
試験登録日
最初に提出
2013年3月6日
QC基準を満たした最初の提出物
2013年3月23日
最初の投稿 (見積もり)
2013年3月27日
学習記録の更新
投稿された最後の更新 (実際)
2022年5月6日
QC基準を満たした最後の更新が送信されました
2022年4月11日
最終確認日
2022年4月1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。