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NCT06117059Recruiting

The PRECISION Study: 3 Fractions of Prostate SBRT and RayPilot HypoCath Image Guidance

The PRECISION Study: A Phase II Study of 3 Fractions of Prostate SBRT With RayPilot System and HypoCath Image Guidance for Men With NCCN Low or Intermediate Risk Prostate Cancer

Source: ClinicalTrials.gov · Last updated 12 Jan 2026

Brief summary (registry, in English)

The investigators want to investigate whether it is possible to reduce the number of curative radiotherapy doses from 5 to only 3 for men with localized early prostate cancer. The aim of the study is to ensure that the side effects of the 3-dose treatment are the same or potentially lower than those already published when using the 5-dose treatment as used in the UK PACE-B trial (NCT01584258). The name of this type of radiotherapy is Stereotactic Body Radiotherapy (SBRT) or participants may see it referred to as Stereotactic Ablative Radiotherapy (SABR). The study is a two-stage single arm Phase II study open to those Centres that use the RayPilot HypoCath tumour tracking system (Micropos Medical). This commercially available system was not available at the time of the original PACE-B study. The system acts like a Global Positioning Device (GPS) to continuously track the prostate position during radiotherapy. If the prostate moves more than 2mm (about 0.08 in) from its intended position during the treatment, then the radiotherapy team are alerted, and the treatment halted until the prostate moves back into the correct position. The ability to understand exactly where the prostate is throughout the treatment ensures the intended dose hits the cancer and does not accidentally increase the dose to the nearby bladder and rectum. The system is a modification of a standard urinary catheter which sits within the bladder with the GPS placed within the wall of the catheter as it passes through the prostate. The investigators are not testing the system as it is commercially available but using it to improve the accuracy of radiotherapy delivery, reducing the number of days of treatment, minimizing side effects and helping ease the burden on busy radiotherapy Departments.

Status (registry)
Recruiting
Study type
Interventional
Enrollment
100 (estimated)
First submitted
10 Oct 2023
Start date
1 Nov 2024
Primary completion date
1 Nov 2026
Lead sponsor
NHS Lothian
NCT number
NCT06117059

What you commit to

  • Study type: Interventional
  • Planned participants: 100
  • From 1 Nov 2024 to the primary completion date, 1 Nov 2026
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other

  • T3a or above
  • Gleason 4+3=7
  • PSA\>20ng/ml

Who the study is looking for

  • low and favorable intermediate NCCN Criteria patients
  • Prostate volume under 80cc
  • IPSS under 20
  • Q-max above 10cc per second and urinary residual less than 150mls
  • No TURP
  • No hip replacements
  • No previous radiotherapy to the pelvis
  • No active second malignancy except skin SCC or BCC for the last 2 years
  • No history of inflammatory bowel disease
  • No co-morbid illness that would make compliance to treatment difficult
  • Able to give informed consent

Sex: Male · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
NHS Lothian
Coordinator of this site? Confirm its status
EdinburghUnited KingdomRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.