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Prostate CancerNCT03339531

Optimized 2D-RT for Prostate Cancer

A study testing 2D radiotherapy in people with Prostate Cancer, run by IRCCS Azienda Ospedaliero-Universitaria di Bologna.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Prostate cancer (CAP) is one of the most common malignancies in men, both in Western countries and developing countries. Radiation therapy (RT) is an important therapeutic option. New technologies (3D, IMRT, IGRT, VMAT) have been introduced in the last decades, with a progressive improvement of clinical outcome. Read more about this study

Who is it for?
Ages 18 to 79 years, men only
Conditions the study is for
Prostate Cancer
What is being tested?
2D radiotherapy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
No sites listed yet
Study dates
2 Feb 2015to 18 Dec 2015
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 79 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • > 18 years
  • clinical T stage: cT2b, cT2c, cT3a, cT3b
  • informed consent
  • MRI of the pelvis

Who cannot join

  • > 79 years
  • prior surgery treatment for prostate cancer
  • prior pelvic radiotherapy
  • genetic syndromes of hyper-radio-sensitivity
  • chronic infiammatory bowel disease

About this study

Official title: Definition of Fields Margins for Optimized 2D Radiotherapy of Prostate Carcinoma

Prostate cancer (CAP) is one of the most common malignancies in men, both in Western countries and developing countries. Radiation therapy (RT) is an important therapeutic option. New technologies (3D, IMRT, IGRT, VMAT) have been introduced in the last decades, with a progressive improvement of clinical outcome. However, in many countries the only treatment option is the traditional 2D technique based on standard simulation. The indications for field definition in this treatment are still based on expert's opinions. The aim of this analysis is to propose new indications for 2D fields definition based on three-dimensional simulation in a population of patients with CAP. Twenty patients with CAP consecutively treated with RT in our center were identified. Patients underwent CT-simulation in supine position. Pelvic MRI images were fused with CT-simulation images. In this way, delineation of the prostate and seminal vesicles was performed on MRI images. Clinical Target Volume definition (CTV) was performed according to EORTC guidelines simulating 4 different categories: low-risk CAP, intermediate-risk CAP, high-risk CAP without involvement of the seminal vesicles, and high-risk CAP with involvement of seminal vesicles. The Planning Target Volume (PTV) was defined by adding a margin of 10 mm to the CTV in all directions. For each patient, 8 treatment plans were calculated. In particular, for each of the 4 categories of risk, 2 treatment plans were calculated by using a cobalt source or 10 MV photons. Treatment plans were calculated using the box technique. Progressive optimization was realized with an iterative procedure by evaluating the three-dimensional dose distribution. Once the final plan was achieved (respecting the PTV constraint: D98 > 95%), distances of the fields edges from a set of reference points were measured.

Conditions
Prostate Cancer
Being tested
2D radiotherapy
Keywords
2D, prostate neoplasms, radiotherapy, simulation
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • 2D radiotherapyRadiation

Study groups in NCT03339531
Study groupRoleWhat they receive
2D radiotherapyExperimentalPatients with prostate cancer were treated with 2D-radiotherapy
Receives: Radiation: 2D radiotherapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. new indications for 2D fields definition

    Twenty patients with prostate cancer (CAP) were identified. Pelvic MRI images were fused with CT-simulation images to delineate prostate and seminal vesicles on MRI images. Clinical Target Volume definition (CTV) was performed according to EORTC guidelines simulating 4 different categories: low-risk CAP, intermediate-risk CAP, high-risk CAP with or without involvement of the seminal vesicles. The Planning Target Volume (PTV) was defined by adding a margin of 10 mm to the CTV. For each patient, 8 treatment plans were calculated using box tecnhique: 2 treatment plans for each risk category were calculated by using a cobalt source or 10 MV photons. Progressive optimization was realized with an iterative procedure by evaluating the three-dimensional dose distribution. Once the final plan was achieved (respecting the PTV constraint: D98 > 95%), distances of the fields edges from a set of reference points were measured.

    Measured: through study completion, up to 10 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Nov 2017
  2. Study start2 Feb 2015
  3. Primary completion18 Dec 2015
  4. Study completion18 Dec 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03339531
Sponsor's protocol ID
2D-RT in prostate cancer
Status last verified
Mar 2018
First submitted
3 Nov 2017
Last updated
13 Mar 2018
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing 2D radiotherapy in people with Prostate Cancer, run by IRCCS Azienda Ospedaliero-Universitaria di Bologna.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Mar 2018. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

new indications for 2D fields definition (time frame: through study completion, up to 10 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Mar 2018.

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