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A Randomised, Double-Blind, Placebo-Controlled Trial Assessing the Efficacy and Safety of Dutasteride (AVODART™) 0.5 mg in Extending the Time to PSA Doubling in Men with Prostate Cancer and Biochemical Failure (PSA increase) after Radical Therapy with Curative Intent (ARTS – AVODART after Radical Therapy for prostate cancer Study)

Conditions
Clinically localised prostate cancer
MedDRA version: 9.1Level: LLTClassification code 10060862Term: Prostate cancer
Registration Number
EUCTR2007-001703-38-EE
Lead Sponsor
GlaxoSmithKline Research and Development Ltd
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
ot Recruiting
Sex
Male
Target Recruitment
276
Inclusion Criteria

Demographic and baseline characteristics:
1. Males <85 years of age
2. No clinically relevant abnormal findings on the screening ECG
Disease characteristics:
3. Patients with asymptomatic PSA failure following radical therapy with curative intent for clinically localised prostate cancer. PSA failure is defined as:
a. After primary radiotherapy:
i. 3 rises in PSA levels from nadir PSA, with each determination at least 4 weeks apart and a final PSA level =2 ng/mL above nadir PSA
ii. Time from radiotherapy should be at least 1 year from termination of radiotherapy treatment
b. After radical prostatectomy and salvage radiotherapy:
i. 3 rises in PSA level from nadir PSA, with each determination at least 4 weeks apart and each PSA level =0.2 ng/mL and a final PSA level =0.4 ng/mL (nadir PSA is defined as the lowest PSA value achieved after therapy)
4. Serum PSA levels:
a. =2 ng/mL and =20ng/mL for primary radiotherapy patients
b. =0.4 ng/ml and =10 ng/ml for radical prostatectomy and salvage radiotherapy patients
5. PSADT >3 months and =24 months
6. Clinical stage T1-T3a N0 M0
7. Non-metastatic prostate cancer, as confirmed on a negative bone scan performed within 6 months prior to the screening visit (Visit 1)
8. No evidence of local recurrence in radical prostatectomy or salvage radiotherapy patients
9. Expected survival =2 years
10. Eastern Cooperative Oncology Group (ECOG) performance status 0, 1 or 2 Miscellaneous:
11. Able to swallow and retain oral medication
12. Able and willing to participate in the full 2 years of the study
13. Able to read and write (the MAX-PC questionnaire is self-administered), understand instructions related to study procedures and give written informed consent
14. In France, a patient will be eligible for inclusion in this study only if either affiliated to or a beneficiary of a social security category

Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range

Exclusion Criteria

Demographic and baseline characteristics:
1. Any unstable serious co-existing medical condition(s) including but not limited to myocardial infarction, coronary bypass surgery, unstable angina, cardiac arrhythmias, clinically evident congestive heart failure or cerebrovascular accident within 6 months prior to Visit 1, or uncontrolled diabetes or peptic ulcer disease which is uncontrolled by medical management
2. Abnormal liver function tests (greater than 2 times the upper limit of normal [ULN] for alanine aminotransferase [ALT], aspartate aminotransferase [AST] or alkaline phosphatase [ALP] or >1.5 x ULN for bilirubin).
3. Serum creatinine >1.5 x ULN
4. History of another malignancy within 5 years that could affect the diagnosis of prostate cancer
5. History or current evidence of drug or alcohol abuse within 12 months prior to Visit 1
6. History of any illness (including psychiatric) that, in the opinion of the investigator, might confound the results of the study or pose additional risk to the patient
7. Known hypersensitivity to any 5-AR inhibitor or to any drug chemically related to dutasteride
Disease characteristics:
8. Serum PSA levels
a. >20 ng/mL in primary radiotherapy patients
b. >10 ng/mL in radical prostatectomy and salvage radiotherapy patients
9. PSADT =3 months or >24 months
10. Biochemical failures in post brachytherapy patients
11. Clinical stage N+ or M+
12. Patient has previously been treated for prostate cancer with any of the following:
a. Chemotherapy
b. Oestrogens (e.g. megestrol, medroxyprogesterone, cyproterone, Diethylstilbestrol [DES])
c. Drugs with anti-androgenic properties (e.g. spironolactone if >50mg/day, flutamide, bicalutamide, ketoconazole, progestational agents) [Note: the use of topical ketoconazole is permitted prior to and during the study and the use of cimetidine is permitted prior to study entry]
d. GnRH analogues (e.g., leuprolide, goserelin) except when used for radiotherapy adjuvancy or neoadjuvancy (in this case use should have been for no more than 6 months and should have finalised at least 1 year before Visit 1)
e. Orchiectomy
Concomitant medications:
13. Glucocorticoids, except inhaled or topical, are not permitted within 3 months prior to Visit 1 or during the study
14. Current and/or previous use of finasteride (Proscar, Propecia) or dutasteride (GI198745, AVODART™) exposure within 6 months prior to Visit 1
15. Anabolic steroids within 6 months prior to Visit 1
16. Participation in any other investigational or marketed drug trial within the 30 days prior to Visit 1 or any time during the study period

Study & Design

Study Type
Interventional clinical trial of medicinal product
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Secondary Outcome Measures
NameTimeMethod
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