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Prostate CancerPhase 2/3AVIASNCT00553878

Comparing 0.5 mg Dutasteride vs Placebo Daily in Men Receiving Androgen Ablation Therapy for Prostate Cancer

A Phase 2/3 study testing Dutasteride in people with Prostate Cancer, run by Canadian Urology Research Consortium at 1 site in Canada.

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

Patient on an intermittent androgen deprivation protocol for biochemical recurrence after radical local therapy for prostate cancer,the addition of continuous dutasteride treatment, significantly prolongs the duration of the off treatment interval and time to androgen independence. Read more about this study

Who is it for?
Ages 45 to 80 years, men only
Conditions the study is for
Prostate Cancer
What is being tested?
Dutasteride
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
100 participants
Where
1 siteCanada
Study dates
Mar 2007to Dec 2012
Phase
Phase 2/3
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 45 to 80 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Able to give informed consent
  • Age_>45and<_80
  • Histological confirmed adenocarcinoma of prostate
  • Has received external beam radiation,brachytherapy or radical prostatectomy for the treatment of prostate ca
  • Candidate for intermittent androgen ablation
  • Minimum of 3 PSA values above nadir taken at least 1 month apart
Show all 9Show fewer
  • Serum testosterone >_250ng/dl,ECOG 0 or 1
  • Negative bone scan within 12 months of visit 1
  • Able to swallow and retain oral medication

Who cannot join

  • Previous treatment with chemotherapy
  • Hormonal therapy with in last year
  • Glucocorticoid with in last 3 months
  • LHRH analogues with in previous year
  • Ketoconazole
  • Non Steroidal anti-androgens with in previous year
Show all 16Show fewer
  • Concurrent or previous use of Finasteride Dutasteride 5a reductase inhibitor anabolic steroids
  • Over the counter or herbal prep such as saw palmetto selenium or vitamin E within last year
  • May not be receiving any other investigational drug with in last 30 days
  • Evidence of distant metastases
  • Has received adjuvant or neoadjuvant ablation in past 12 months
  • Unstable serious co-existing medical condition
  • Abnormal liver and kidney functions
  • Previous malignancy not including curative treated basal cell carcinoma of skin with in 5 years and bladder cancer with in past 2 years
  • Known hypersensitivity to any 5a-reductase inhibitor or to any drug chemically related to dutasteride
  • Known hypersensitivity to bicalutamide.

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Sunnybrook Health Sciences Centre

    Toronto, Ontario, M4N 3M5

Other trials in Canada

About this study

Official title: Multi Center Double Blind Study Comparing 0.5 mg Dutasteride vs Placebo Daily in Men Receiving Intermittent Androgen Ablation Therapy for Prostate Cancer

Patient on an intermittent androgen deprivation protocol for biochemical recurrence after radical local therapy for prostate cancer,the addition of continuous dutasteride treatment, significantly prolongs the duration of the off treatment interval and time to androgen independence.

Read the detailed description

The study is to assess the effect of therapy with repeat oral daily dosing of dutasteride 05 mg on the length of the off treatment interval in men receiving intermittent androgen therapy for localized prostate cancer.

Conditions
Prostate Cancer
Being tested
Dutasteride
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • DutasterideDrug

    Also called placebo

    dutasteride 0.5mg capsule daily until serum PSA rises to 5ng/ml in the off treatment interval

Study groups in NCT00553878
Study groupRoleWhat they receive
dutasteridePlacebo comparatorNot described
Receives: Drug: Dutasteride

What is being measured

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

  1. To assess whether repeat oral once daily dosing of dutasteride 0.5mg increases the length of the off treatment interval in men receiving intermittent androgen ablation therapy for localized prostate cancer

    Measured: 2 Years

Timeline

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

  1. First posted6 Nov 2007 (estimated)
  2. Study startMar 2007
  3. Primary completionSep 2009
  4. Study completionDec 2012

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 2/3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Single group
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00553878
Sponsor's protocol ID
CURC/CUOG-AVIAS-0601
Acronym
AVIAS
Status last verified
Dec 2012
First submitted
5 Nov 2007
Last updated
14 Oct 2016
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Yes: plan to share in publication

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Dutasteride in people with Prostate Cancer, run by Canadian Urology Research Consortium 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 9 inclusion and 16 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 14 Oct 2016. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined 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.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

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?

To assess whether repeat oral once daily dosing of dutasteride 0.5mg increases the length of the off treatment interval in men receiving intermittent androgen ablation therapy for localized prostate cancer (time frame: 2 Years). 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 14 Oct 2016.

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