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Carcinoma of the ProstatePhase 2NCT01890096

A Phase II Trial of High Dose-Rate Brachytherapy as Monotherapy in Low and Intermediate Risk Prostate Cancer

A Phase 2 study testing HDR 2 Fraction and HDR 1 Fraction in people with Carcinoma of the Prostate, run by Sunnybrook Health Sciences Centre at 1 site in Canada.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

A single high dose rate brachytherapy (HDR) treatment combined with a short course of external beam radiotherapy (EBRT) is a highly effective and well tolerated treatment for men with intermediate risk prostate cancer. High cancer control rates have also been reported with HDR used on its own, without the EBRT. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Carcinoma of the Prostate
What is being tested?
HDR 2 Fraction and HDR 1 Fraction
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
174 participants
Where
1 siteCanada
Study dates
May 2013to 1 May 2020
Phase
Phase 2
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 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • histologically confirmed diagnosis of adenocarcinoma of the prostate
  • low and intermediate risk disease defined as either Gleason 6 or Gleason 7 and PSA < 20ng/mL. PSA to be drawn within 60 days of registration
  • prostate volume < 60 cc as determined by ultrasound, CT or MRI
  • willing to give informed consent ot participate in this clinical trial
  • able and willing to complete Expanded Prostate Index Composite (EPIC) questionnaire

Who cannot join

  • documented nodal or distant metastases
  • previous pelvic radiotherapy
  • previous trans-urethral resection of prostate, previous prostatectomy or Highly Focused Ultrasound (HIFU)
  • use of androgen deprivation therapy. Use of 5-alpha reductase inhibitors is permitted
  • poor baseline urinary function defined as radiotherapy eg. connective tissue disease or inflammatory bowel disease
  • significant medical co-morbidity rendering patient unsuitable for general anaesthetic

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Odette Cancer Centre, Sunnybrook Health Sciences Centre

    Toronto, Ontario, M4N 3M5

Other trials in Canada

About this study

Official title: A Randomized Phase II Trial of High Dose-Rate Brachytherapy as Monotherapy in Low and Intermediate Risk Prostate Cancer

A single high dose rate brachytherapy (HDR) treatment combined with a short course of external beam radiotherapy (EBRT) is a highly effective and well tolerated treatment for men with intermediate risk prostate cancer. High cancer control rates have also been reported with HDR used on its own, without the EBRT. The challenge has been to determine what HDR dose to use with a move towards one or two fractions by several investigators. These schedules are reported to be well tolerated in the short term, but with little long term data. The objective of this study is to investigate HDR monotherapy given as either one fraction of 19 Gy or two fractions of 13.5 Gy in a randomized phase II clinical trial. The primary endpoint is patient reported toxicity and health related quality of life at 1 year, and efficacy data will be also be analyzed. Sample size for the study is 174 patients, which we expect to accrue within 18 months.

Being tested
HDR 2 Fraction, HDR 1 Fraction
Keywords
HDR, monotherapy, low, intermediate, prostate cancer
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • HDR 2 FractionRadiation

    High dose-rate brachytherapy using real-time intra-operative transrectal ultrasound guidance. Patients will receive 27 Gy as a minimal Clinical Target Volume (CTV) dose delivered as two fractions of 13.5 Gy 7-13 days apart. The CTV is the ultrasound defined prostate with a 0-2 mm margin.

  • HDR 1 FractionRadiation

    High Dose-Rate Brachytherapy delivered in same manner as Arm 1, but to a prescribed CTV minimal dose of 19 Gy in a single fraction

Study groups in NCT01890096
Study groupRoleWhat they receive
HDR 2 fractionsExperimentalHDR brachytherapy of 27 Gy delivered in 2 fractions one week apart
Receives: Radiation: HDR 2 Fraction
HDR 1 fractionExperimentalHDR brachytherapy of 19 Gy delivered in a single fraction
Receives: Radiation: HDR 1 Fraction

What is being measured

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

  1. Health related quality of life (QoL)

    To demonstrate that health related QoL at 1 year in the urinary and bowel domains of the Expanded Prostate Index Composite (EPIC) for at least one HDR monotherapy arm is not worse than that following current standard treatment with single fraction HDR combined with supplemental external beam radiotherapy.

    Measured: 1 year

Secondary outcomes (6)
  1. GU and GI toxicities

    To determine genito-urinary (GU) and gastro-intestinal (GI) toxicities in both study arms according to the Common Toxicity Criteria for Adverse Events (CTCAE) version 4.0

    Measured: baseline, 6 weeks post treament, 3mths, 6mths, 6 monthly for the first 3 years, annually up to 5 years

  2. Urinary Symptoms

    To determine changes in urinary symptoms in both study arms as determined by the International Prostate Symptom Score (IPSS)

    Measured: baseline, 6 weeks post treatment, 3 mths, 6 mths, 6-monthly for the first 3 years, annually until 5 years

  3. Serum PSA changes

    To determine changes in serum prostate-specific antigen (PSA) in both arms

    Measured: baseline, 6 weeks post treatment, 3 mths, 6 mths, 6-monthly up to 3 years, annually until 5 years

  4. Biochemical failure and disease free survival rates

    To determine PSA failure and disease free survival rates in both study arms

    Measured: 5 years

  5. Erectile function

    To determine changes in erectile function in both study arms assessed using the International Index of Erectile Function (IIEF) scale

    Measured: 5 year

  6. Associations between dosimetric parameters and toxicity/EPIC domains

    To explore association between dosimetric parameters and toxicity/EPIC domain change

    Measured: 5 years

Timeline

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

  1. First posted1 Jul 2013 (estimated)
  2. Study startMay 2013
  3. Primary completion1 May 2017
  4. Study completion1 May 2020 (estimated)

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
174 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01890096
Sponsor's protocol ID
GMOR_HDR Monotherapy RCT
Status last verified
Apr 2018
First submitted
26 Jun 2013
Last updated
17 Apr 2018
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing HDR 2 Fraction and HDR 1 Fraction in people with Carcinoma of the Prostate, run by Sunnybrook Health Sciences Centre at 1 site in Canada.

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 5 inclusion and 6 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: status not confirmed, as of the sponsor's last update on 17 Apr 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

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?

Health related quality of life (QoL) (time frame: 1 year). 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 17 Apr 2018.

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