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PETCT and MRI guided boost for prostate cancer radiotherapy

Phase 2
Conditions
Health Condition 1: C61- Malignant neoplasm of prostate
Registration Number
CTRI/2022/09/045258
Lead Sponsor
Varian Medical System
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Open to Recruitment
Sex
Not specified
Target Recruitment
0
Inclusion Criteria

1 Histological diagnosis of adenocarcinoma prostate

2 Suitableand planned for stereotactic body radiotherapy (SBRT) to the prostate

3 Visible DIL in both mpMRI and Ga68-PSMA PETCT scans done not more than four weeks apart

Exclusion Criteria

1 More than four weeks of androgen deprivation therapy or cancer-directed systemic therapy before baseline imaging

2 Inability to deliver adequate radiotherapy dose safely based on assessment by radiation oncologist

3 IPSS >20

4 Prior TURP within 3 months

5 Urethral stricture

6 Prostate gland volume >80cc

7 cT4 (AJCC 8th)

8 Untreated anal hemorrhoids/fissures

9 Pt unable to consent

10 Patients unwilling or unreliable for regular follow-up and surveillance imaging

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
To measure the volumetric and spatial concordance between the DIL volume as delineated on the prostate multiparametric MRI (mpMRI) and RT planning Ga68-PSMA PETCT scansTimepoint: baseline radiotherapy planning
Secondary Outcome Measures
NameTimeMethod
To determine a suitable threshold for auto-contouring of the DIL volume in Ga68-PSMA PETCT <br/ ><br>Response assessment post radiotherapyTimepoint: Baseline radiotherapy planning, then every 3 months after completing radiotherapy, till total two years
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