Intensity Modulated Radiation Therapy for Prostate Cancer
2019년 7월 17일 업데이트: Kevin Camphausen, M.D., National Cancer Institute (NCI)
A Pilot Study of Image Guided Prostate and Pelvic Nodal Irradiation With Intensity Modulated Radiation Therapy (IMRT) in Prostate Cancer
BACKGROUND:
-This study represents a progression from findings in four previous National Cancer Institute (NCI) Radiation Oncology Branch (ROB) protocols (02-C-0167A, 02-C-0207E, 03-C-0190B, 04-C-0171). In these previous works we have begun to develop techniques to obtain Magnetic Resonance (MR) biological images and co-register tissue in prostate cancer patients.
OBJECTIVES:
-The primary objective of the first portion of this study is to assess the feasibility of using Intensity-modulated radiation therapy (IMRT) to treat the at-risk lymph nodes in prostate cancer. Also, if feasible, we hope optimize this technique with experience.
ELIGIBILITY:
-This is a study of image guided, targeted radiation therapy in patients with high risk of nodal metastases from prostate cancer. Patients with prostate cancer who have more than 15% risk of lymph node (as defined by the Partin tables) metastasis will be eligible for this study.
DESIGN:
- On the first 10 patients, we will perform approximately 5 computed tomography (CT) simulations throughout the course of their therapy. On each simulation, the initial treatment plan will be re-run. The dose-volume data from target and normal tissues will then be re-analyzed. From this analysis we will be better able to determine the size of margins needed to account for organ motion and changes such as varying amounts of gas in the bowel and fluid in the bladder. To the best of our knowledge, no such analyses have been published.
- If the initial part of this trial is feasible, we will proceed to a phase I dose escalation trial of radiation to the at-risk lymph nodes. The primary statistical objective of the phase I portion of this study is to estimate the Maximum Tolerated Dose (MTD) of external beam radiation based on evaluating acute toxicity. The study will be conducted with a dose-escalation design with 3 patients in each dose cohort. If fewer than 2 of 3 patients experience an acute dose limiting toxicity (DLT) than patients will be accrued to the next dose cohort. If 2 or more of 3 patients experience a DLT then the MTD will be exceeded and the prior, lower dose cohort will be considered the MTD. Secondary objectives of this study are to relate patterns in gene and protein expression to response and toxicity and to evaluate the frequency of late term toxicity.
- Specific procedures and risks will be described in a separate consent to be obtained at the time of biopsy. Tissue samples will be processed for complementary deoxyribonucleic acid (cDNA) microarray testing and stored for future analysis in the Radiation Oncology Branch, NCI.
- Anatomic Magnetic Resonance Imaging (MRI) and magnetic resonance (MR) biological images of the prostate and pelvis will be obtained and tissue will be acquired with biopsy locations precisely translated (co-registered) to an MR image of reference. A fiducial marker (gold seed) will be left at the biopsy site as a fiducial marker to direct future radiation therapy to the prostate. If necessary, additional fiducial markers will be placed for prostate localization during treatment.
연구 개요
상세 설명
BACKGROUND:
-This study represents a progression from findings in four previous National Cancer Institute (NCI) Radiation Oncology Branch (ROB) protocols (02-C-0167A, 02-C-0207E, 03-C-0190B, 04-C-0171). In these previous works we have begun to develop techniques to obtain Magnetic Resonance (MR) biological images and co-register tissue in prostate cancer patients.
OBJECTIVES:
-The primary objective of the first portion of this study is to assess the feasibility of using Intensity-modulated radiation therapy (IMRT) to treat the at-risk lymph nodes in prostate cancer. Also, if feasible, we hope optimize this technique with experience.
ELIGIBILITY:
- This is a study of image guided, targeted radiation therapy in patients with high risk of nodal metastases from prostate cancer.
- Patients with prostate cancer who have more than 15% risk of lymph node (as defined by the Partin tables) metastasis will be eligible for this study.
DESIGN:
- On the first 10 patients, we will perform approximately 5 computed tomography (CT) simulations throughout the course of their therapy. On each simulation, the initial treatment plan will be re-run. The dose-volume data from target and normal tissues will then be re-analyzed. From this analysis we will be better able to determine the size of margins needed to account for organ motion and changes such as varying amounts of gas in the bowel and fluid in the bladder. To the best of our knowledge, no such analyses have been published.
- If the initial part of this trial is feasible, we will proceed to a phase I dose escalation trial of radiation to the at-risk lymph nodes. The primary statistical objective of the phase I portion of this study is to estimate the Maximum Tolerated Dose (MTD) of external beam radiation based on evaluating acute toxicity. The study will be conducted with a dose-escalation design with 3 patients in each dose cohort. If fewer than 2 of 3 patients experience an acute dose limiting toxicity (DLT) than patients will be accrued to the next dose cohort. If 2 or more of 3 patients experience a DLT then the MTD will be exceeded and the prior, lower dose cohort will be considered the MTD. Secondary objectives of this study are to relate patterns in gene and protein expression to response and toxicity and to evaluate the frequency of late term toxicity.
- Specific procedures and risks will be described in a separate consent to be obtained at the time of biopsy. Tissue samples will be processed for complementary deoxyribonucleic acid (cDNA) microarray testing and stored for future analysis in the Radiation Oncology Branch, NCI.
- Anatomic Magnetic Resonance Imaging (MRI) and magnetic resonance (MR) biological images of the prostate and pelvis will be obtained and tissue will be acquired with biopsy locations precisely translated (co-registered) to an MR image of reference. A fiducial marker (gold seed) will be left at the biopsy site as a fiducial marker to direct future radiation therapy to the prostate. If necessary, additional fiducial markers will be placed for prostate localization during treatment.
연구 유형
중재적
등록 (실제)
19
단계
- 초기 1단계
연락처 및 위치
이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.
연구 장소
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Maryland
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Bethesda, Maryland, 미국, 20892
- National Institutes of Health Clinical Center, 9000 Rockville Pike
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참여기준
연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.
자격 기준
공부할 수 있는 나이
18년 (성인, 고령자)
건강한 자원 봉사자를 받아들입니다
아니
연구 대상 성별
남성
설명
- INCLUSION CRITERIA:
Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1, or 2
Pathology report confirming adenocarcinoma of the prostate
Risk of lymph node metastasis greater than or equal to15% as defined by the Partin tables or biopsy proven positive lymph nodes
Tumor visible on magnetic resonance imaging (MRI)
No prior surgery, radiation, or chemotherapy for prostate cancer, with the exception of hormone therapy which may be given neoadjuvantly for up to four (4) months.
Age greater than 18 years old and less than 90 years old.
EXCLUSION CRITERIA:
Cognitively impaired patients who cannot give informed consent.
Patients with metastatic disease beyond the pelvis
Contraindication to biopsy
- Bleeding disorder
- Prothrombin time (PT)/partial thromboplastin time (PTT) greater than or equal to 1.5 times the upper limit of normal
- Platelets less than or equal to 50K
- Artificial heart valve
Contraindication to MRI
- Patients weighing greater than136 kgs (weight limit for the scanner tables)
- Allergy to magnetic resonance (MR) contrast agent
- Patients with pacemakers, cerebral aneurysm clips, shrapnel injury or implantable electronic devices.
Pre-existing and active prostatitis or proctitis
Other medical conditions deemed by the principal investigator (PI) or associates to make the patient ineligible for protocol investigations, procedures, and high-dose external beam radiotherapy.
공부 계획
이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 무작위화되지 않음
- 중재 모델: 단일 그룹 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
|
실험적: Arm 1- 5040cGy to the lymph nodes
5040Gray (cGy) to the lymph nodes
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Radiation will be given in dose escalations from 5040 Gray (cGy) to a maximum of 5900 cGy to lymph nodes.
|
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실험적: Arm 2 - 5400cGy to the lymph nodes
5400Gray (cGy) to the lymph nodes
|
Radiation will be given in dose escalations from 5040 Gray (cGy) to a maximum of 5900 cGy to lymph nodes.
|
|
실험적: Arm 3 - 5900cGy to the lymph nodes
5900Gray (cGy) to the lymph nodes
|
Radiation will be given in dose escalations from 5040 Gray (cGy) to a maximum of 5900 cGy to lymph nodes.
|
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Number of Participants With Any Grade 2 Toxicity Using Intensity Modulated Radiation Therapy (IMRT) to Treat the At-risk Lymph Nodes in Prostate Cancer ( up to First 10 Patients)
기간: At one week, one month, 2 months, 3 months, 6 months, 9 months, 1 year, 18 months, 2 years, 30 months, and 3 years after radiation therapy
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Radiation side effects were assessed by the Radiation Oncology Group (RTOG) Acute/Late Toxicity Grading Gastrointestinal and Genitourinary criteria.
Acute Grade 0 - no symptoms, Grade 1 is mild, Grade 2 is moderate, Grade 3 is severe, Grade 4 is life threatening, and Grade 5 is death directly related to radiation side effects.
Late toxicity is defined as occurring after 90 days.
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At one week, one month, 2 months, 3 months, 6 months, 9 months, 1 year, 18 months, 2 years, 30 months, and 3 years after radiation therapy
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Maximum Tolerated Dose (MTD) of External Beam Radiation to Pelvic Lymph Nodes of Interest in Patients Receiving Radiation Therapy for Prostate Cancer (After the First 10 Patients) In Arm 1, Arm 2, and Arm 3
기간: Completion of Treatment, an average of 8.5 weeks
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Maximum tolerated dose (MTD) is defined as the dose level immediately below the dose level at which 2 or more in a cohort of either 3 or 6 patients experiences a dose limiting toxicity (DLT) attributed to radiation therapy.
An acute DLT will be defined as Radiation Therapy Oncology Group (RTOG) grade 3 or greater, acute gastrointestinal or genitourinary toxicity within 3 months after the completion of radiation.
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Completion of Treatment, an average of 8.5 weeks
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Number of Participants With Grade 2 Late Gastrointestinal or Genitourinary Toxicity Assessed by the Radiation Oncology Group (RTOG) Criteria
기간: At median follow-up, approximately 28 months following radiation
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Long-term effects and toxicity following intensity modulated radiation therapy (IMRT) dose escalation to the pelvic nodes were measured by the Radiation Oncology Group (RTOG) Criteria.
Lower GI/Pelvis grade 2 toxicity Diarrhea requiring parasympatholytic drugs (e.g.
Lomotil)/mucous discharge not necessitating sanitary pads/rectal or abdominal pain requiring analgesics and Genitourinary grade 2 defined as Frequency of urination or nocturia that is less frequent than every hour.
Dysuria, urgency, bladder spasm requiring local anesthetic (e.g.
Pyridium).
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At median follow-up, approximately 28 months following radiation
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Number of Participants With a Dose Limiting Toxicity (DLT)
기간: Within 3 months after completion of radiation
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An acute Dose Limiting Toxicity (DLT) will be defined as Radiation Therapy Oncology Group (RTOG) grade 3 or greater, acute gastrointestinal or genitourinary toxicity within 3 months after the completion of radiation.
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Within 3 months after completion of radiation
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Number of Participants With Serious and Non-serious Adverse Events Assessed by the Common Terminology Criteria in Adverse Events (CTCAE v4.0)
기간: Date treatment consent signed to date off study, approximately 8 years and 3.5 months.
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Here is the count of participants with serious and non-serious adverse events assessed by the Common Terminology Criteria in Adverse Events (CTCAE v4.0).
A non-serious adverse event is any untoward medical occurrence.
A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned.
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Date treatment consent signed to date off study, approximately 8 years and 3.5 months.
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Number of Participants With Grade 3 or 4 Acute and/or Late Gastrointestinal or Genitourinary Toxicity Assessed by the Radiation Oncology Group (RTOG) Criteria
기간: At median follow-up, approximately 28 months following radiation
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Long-term effects and toxicity following intensity modulated radiation therapy (IMRT) dose escalation to the pelvic nodes were measured by the Radiation Oncology Group (RTOG) Criteria.
Grade 3 toxicity Lower GI/Pelvis is Diarrhea requiring parenteral support/severe mucous or blood discharge necessitating sanitary pads/abdominal distention (flat plate radiograph demonstrates distended bowel loops), Grade 3 toxicity Genitourinary Frequency with urgency and nocturia hourly or more frequently/dysuria, pelvis pain or bladder spasm requiring regular, frequent narcotic/gross hematuria with/without clot passage.
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At median follow-up, approximately 28 months following radiation
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공동 작업자 및 조사자
여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.
간행물 및 유용한 링크
연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.
일반 간행물
- Pollack A, Zagars GK, Starkschall G, Antolak JA, Lee JJ, Huang E, von Eschenbach AC, Kuban DA, Rosen I. Prostate cancer radiation dose response: results of the M. D. Anderson phase III randomized trial. Int J Radiat Oncol Biol Phys. 2002 Aug 1;53(5):1097-105. doi: 10.1016/s0360-3016(02)02829-8.
- Roach M 3rd, DeSilvio M, Lawton C, Uhl V, Machtay M, Seider MJ, Rotman M, Jones C, Asbell SO, Valicenti RK, Han S, Thomas CR Jr, Shipley WS; Radiation Therapy Oncology Group 9413. Phase III trial comparing whole-pelvic versus prostate-only radiotherapy and neoadjuvant versus adjuvant combined androgen suppression: Radiation Therapy Oncology Group 9413. J Clin Oncol. 2003 May 15;21(10):1904-11. doi: 10.1200/JCO.2003.05.004.
연구 기록 날짜
이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.
연구 주요 날짜
연구 시작 (실제)
2005년 9월 19일
기본 완료 (실제)
2014년 5월 27일
연구 완료 (실제)
2018년 4월 18일
연구 등록 날짜
최초 제출
2006년 6월 19일
QC 기준을 충족하는 최초 제출
2005년 9월 20일
처음 게시됨 (추정)
2005년 9월 21일
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
2019년 7월 19일
QC 기준을 충족하는 마지막 업데이트 제출
2019년 7월 17일
마지막으로 확인됨
2019년 7월 1일
추가 정보
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