Study Stopped
outdated, progress in clinical practice.
Twice High Dose External Beam Radiotherapy by Image-guided Tomotherapy for Organ-confined Prostate Cancer Treatment Emulating High Dose Radiation (HDR) Brachytherapy
THRIP
1 other identifier
interventional
2
1 country
1
Brief Summary
Feasibility trial of twice high dose radiotherapy using Tomotherapy in patients with organ confined Prostate Cancer histologically proven. The study involves 2 steps: A) Assessment of safety as proportion of patients with acute ≥G3 Genito-urinary (GU) and Gastro-intestinal (GI) side effects on the first 16 enrolled patients; B) evaluation of primary and secondary objectives on overall patients.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Oct 2018
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 16, 2018
CompletedFirst Posted
Study publicly available on registry
June 12, 2018
CompletedStudy Start
First participant enrolled
October 30, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 26, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
May 26, 2023
CompletedMay 30, 2023
May 1, 2023
4.6 years
May 16, 2018
May 26, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
occurrence of Grade ≥3 early GU toxicity
Early Grade ≥3 GU toxicity measured by Radiation Therapy Oncology Group and European Organisation for Research and Treatment of Cancer (RTOG/EORTC) toxicity scale, using a scoring range from 0 to 5 for, where 0 means an absence of radiation effects and 5 means the effects led to death
within 3 months after end of Radiotherapy
occurrence of Grade ≥3 early GI toxicity
Early Grade ≥3 GI toxicity measured by Radiation Therapy Oncology Group and European Organisation for Research and Treatment of Cancer (RTOG/EORTC) toxicity scale, using a scoring range from 0 to 5 for, where 0 means an absence of radiation effects and 5 means the effects led to death
within 3 months after end of Radiotherapy
Secondary Outcomes (8)
Occurrence of Grade ≥3 Late GU toxicity
more than 6 months after end of Radiotherapy
Evaluation of Prostate Antigen Serum (PSA) failure
up to 8 years
Time to biochemical failure (TTBF)
up to 8 years
Time to progression (TTP)
up to 8 years
Overall Survival (OS)
up to 8 years
- +3 more secondary outcomes
Study Arms (1)
High dose external beam Radiotherapy
EXPERIMENTALImage-guided tomotherapy
Interventions
20-23 Gy in 2 fractions on the whole prostate gland +/- seminal vesicles and 24-27 Gy in 2 fractions as simultaneous integrated boost (SIB) on the dominant intraprostatic lesion (DIL) 2 weeks in all.
Eligibility Criteria
You may qualify if:
- Histologically confirmed prostate adenocarcinoma (a diagnostic biopsy with at least 10 cores is needed)
- Low and intermediate-risk NCCN risk categories: low-risk ( cT1-2a, Gleason Score ≤ 6 PSA \<10 ng/ml) and among those with intermediate-risk features (clinical stage T2b-c or GS 7 or PSA 10-20 ng/ml) those patients with favorable ones (a single factor for intermediate risk and GLS 3 + 4 and \<50% of biopsy cores containing cancer) will be selected. (30).
- Age ≥18 years
- Good performance status , Eastern Cooperative Oncology Group (ECOG) \< 2) or Karnofsky performance status (KPS) \> 70
- No previous pelvic RT
- Patient not eligible to prostatectomy or patient's refusal to undergo surgery.
- NO previous prostatectomy or TURP
- Good urinary flow (peak flow ≥ 10 ml/s)
- Previous ADT is permitted
- Prostate size ≤ 60 cc
- International Prostate Symptom Score ≤ 15
- Male participants whose partner is of child bearing potential must be willing to ensure that they or their partner use effective contraception during the study and for 3 months thereafter
- Ability to understand and the willingness to sign a written informed consent document
You may not qualify if:
- Nodal involvement or distant metastases (cN1 or cM1)
- Extracapsular tumor or locally advanced disease (cT3-cT4)
- IPSS questionnaire \> 20
- Concomitant inflammatory bowel
- Prior history of chronic prostatitis
- Prior history of urethral stricture
- Important systemic diseases or oral anticoagulant therapy ongoing
- Non-conformity to dose constraints at the treatment planning
- Other invasive cancer (apart from non-melanoma skin), unless the patient has been free from disease for at least 3 years;
- Abnormal complete blood count. Any of the following: platelet count less than 75,000/ml, Hb level less than 10 gm/dl, WBC less than 3.5/ml, abnormal renal function tests (creatinine \> 1.5), severe renal impairment (GFR less than 30)
- Placement of pacemakers and metallic vascular clips (all contraindication to performing prostate mpMRI).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST)
Meldola, FC, 47014, Italy
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Sarah Pia Colangione, MD
Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 16, 2018
First Posted
June 12, 2018
Study Start
October 30, 2018
Primary Completion
May 26, 2023
Study Completion
May 26, 2023
Last Updated
May 30, 2023
Record last verified: 2023-05