A Study of Tadalafil After Radical Prostatectomy (REACTT)
12. prosince 2013 aktualizováno: Eli Lilly and Company
A Randomised, Double-Blind, Placebo-Controlled Study to Evaluate the Effect on Unassisted Erectile Function of the Early Use of Tadalafil 5 mg Once a Day and Tadalafil 20 mg On Demand Treatment for 9 Months in Subjects Undergoing Bilateral Nerve-Sparing Radical Prostatectomy
The study will include patients with localized prostate cancer who experience erectile dysfunction following bilateral nerve-sparing radical prostatectomy.
Patients will be randomly assigned to three treatment arms: Tadalafil 5 mg once a day, Tadalafil 20 mg on demand (prior to anticipated sexual activity), and placebo.
Patients will stay on therapy for 9 months and after withdrawal of medication for 6 weeks, patients will be evaluated for recovery of unassisted erectile function (without medication).
An open-label extension for three months will evaluate the responsiveness of all patients to Tadalafil 5 mg once a day.
Further objectives are to evaluate the treatment satisfaction of the respective therapies.
Přehled studie
Typ studie
Intervenční
Zápis (Aktuální)
583
Fáze
- Fáze 4
Kontakty a umístění
Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.
Studijní místa
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Kortrijk, Belgie, 8500
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Leuven, Belgie, 3000
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Liège, Belgie, 4000
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Creteil, Francie, 94010
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Grenoble, Francie, 38043
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Lyon, Francie, 69437
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Nice, Francie, 06002
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Nimes, Francie, 30029
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Pierre Benite, Francie, 69495
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Amsterdam, Holandsko, 1066 CX
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Leiden, Holandsko, 2300 RC
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Nijmegen, Holandsko, 6532 SZ
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Rotterdam, Holandsko, 3045 PM
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S-Hertogenbosch, Holandsko, 5211 NL
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Veldhoven, Holandsko, 5504 DB
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Acquavivadellefonti, Itálie, 70021
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Bergamo, Itálie, 24128
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Bologna, Itálie, 40138
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Genova, Itálie, 16132
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Milano, Itálie, 20132
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Perugia, Itálie, 06122
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Alberta
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Calgary, Alberta, Kanada, T2W 1P9
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British Columbia
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Victoria, British Columbia, Kanada, V8T 5G1
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Ontario
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London, Ontario, Kanada, N6A 4V2
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Berlin, Německo, 12203
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Braunschweig, Německo, 38126
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Dresden, Německo, 01307
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Essen, Německo, 45122
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Hamburg, Německo, 20246
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Hannover, Německo, 30625
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Herne, Německo, 44627
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Leipzig, Německo, 04103
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Leverkusen, Německo, 51375
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Bydgoszcz, Polsko, 85-168
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Gdansk, Polsko, 80-952
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Kielce, Polsko, 25-734
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Warsaw, Polsko, 02-005
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Zabrze, Polsko, 41-800
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Cambridgeshire
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Cambridge, Cambridgeshire, Spojené království, CB2 0QQ
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Cleveland
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Middlesbrough, Cleveland, Spojené království, TS4 3BW
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Herts
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Stevenage, Herts, Spojené království, SG4 7NH
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Manchester
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Withington, Manchester, Spojené království, M20 9BX
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Aravaca, Španělsko, 28023
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Cordoba, Španělsko, 14004
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Madrid, Španělsko, 28046
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Majadahonda, Španělsko, 28222
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Málaga, Španělsko, 29010
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Sevilla, Španělsko, 41013
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Valencia, Španělsko, 46010
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Basel, Švýcarsko, CH-4031
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Luzern, Švýcarsko, CH-6000
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Zurich, Švýcarsko, CH-8091
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Kritéria účasti
Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.
Kritéria způsobilosti
Věk způsobilý ke studiu
18 let až 67 let (Dospělý, Starší dospělý)
Přijímá zdravé dobrovolníky
Ne
Pohlaví způsobilá ke studiu
Mužský
Popis
Inclusion Criteria:
- scheduled to undergo Bilateral nerve-sparing radical prostatectomy (BNSRP) for organ-confined, non-metastatic prostate cancer
- have a normal preoperative erectile function score of more or equal to 22 at screening(as evaluated by International Index of Erectile Function - Erectile Function domain (IIEF-EF))
- develop Erectile Dysfunction (ED) (defined as the consistent inability to achieve and/or maintain an erection sufficient to permit satisfactory sexual intercourse) after surgery
- have an interest in resuming sexual activity as soon as possible after surgery and anticipate having the same adult female sexual partner during the study
- agree not to use any other treatment for ED, including herbal and over-the-counter (OTC) medications, during the study
- does not require the initiation of adjuvant therapy for prostate cancer
Exclusion Criteria:
- history of ED
- have received previous or current treatment with tadalafil or any other Phosphodiesterase Type 5 (PDE5) inhibitor
- have undergone, or plan to undergo, radiation or hormonal therapy for prostate cancer
- have a history of prostatic surgery or prostatic physical treatments
- have a history of diabetes mellitus
- have a history of galactose intolerance, lapp lactase deficiency, or glucose-galactose malabsorption
- have clinically significant renal insufficiency as determined by the investigator
Studijní plán
Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.
Jak je studie koncipována?
Detaily designu
- Primární účel: Léčba
- Přidělení: Randomizované
- Intervenční model: Paralelní přiřazení
- Maskování: Dvojnásobek
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
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Experimentální: Tadalafil daily [5 milligrams (mg)]
After the treatment period and 6-week study Drug-Free Period, all participants can continue on study in an optional 5-mg tadalafil 3-month Open-Label Period.
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Administered by mouth for 9 months
Ostatní jména:
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Experimentální: Tadalafil on demand (20 mg)
After the treatment period and 6-week study Drug-Free Period, all participants can continue on study in an optional 5-mg tadalafil 3-month Open-Label Period.
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Administered by mouth for 9 months
Ostatní jména:
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Komparátor placeba: Placebo
After the treatment period and 6-week study Drug-Free Period, all participants can continue on study in an optional 5-mg tadalafil 3-month Open-Label Period.
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Administered by mouth, daily or on demand for 9 months
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Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
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Percentage of Participants With a Score of Greater Than or Equal to 22 in the Erectile Function (EF) Domain of the International Index of Erectile Function (IIEF) Questionnaire
Časové okno: Month 10.5
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Self-reported erectile function during the past 4 weeks.
IIEF- EF is the sum of Questions 1-5 and 15 of the IIEF.
Questions 1-5 are scored 0 (no sexual activity for Question 1, no sexual stimulation for Question 2 and did not attempt intercourse for Questions 3-5) to 5 (high erectile function) and Question 15 is scored 1 (very low confidence) to 5 (very high confidence), for a total score ranging from 1 to 30.
Higher scores represent better erectile function.
Data presented are the percentage of participants with an IIEF-EF Total Score greater than or equal to (≥) 22.
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Month 10.5
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Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
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Percentage of Participants With a Score of Greater Than or Equal to 22 in the International Index of Erectile Function- Erectile Function (IIEF-EF) Domain
Časové okno: Month 9 and Month 13.5
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Self-reported erectile function during the past 4 weeks.
IIEF- EF is the sum of Questions 1-5 and 15 of the IIEF.
Questions 1-5 are scored 0 (no sexual activity for Question 1, no sexual stimulation for Question 2 and did not attempt intercourse for Questions 3-5) to 5 (high erectile function) and Question 15 is scored 1 (very low confidence) to 5 (very high confidence), for a total score ranging from 1 to 30.
Higher scores represent better erectile function.
Data presented are the percentage of participants with an IIEF-EF Total Score greater than or equal to (≥) 22.
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Month 9 and Month 13.5
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Change From Baseline to Endpoint in the International Index of Erectile Function- Erectile Function (IIEF-EF) Total Score
Časové okno: Randomization (Baseline), Months 9 and 10.5 and 13.5
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Self-reported erectile function during the past 4 weeks.
IIEF- EF is the sum of Questions 1-5 and 15 of the IIEF.
Questions 1-5 are scored 0 (no sexual activity for Question 1, no sexual stimulation for Question 2 and did not attempt intercourse for Questions 3-5) to 5 (high erectile function) and Question 15 is scored 1 (very low confidence) to 5 (very high confidence), for a total score ranging from 1 to 30.
Higher scores represent better erectile function.
The Mixed Model for Repeated Measures (MMRM) analysis was used to calculate Least Squares (LS) mean and 95% confidence interval (CI).
LS mean values are adjusted for baseline score, treatment, country, visit, visit-by-treatment, age group, and age group-by-treatment (if significant at p<0.10).
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Randomization (Baseline), Months 9 and 10.5 and 13.5
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Change From Baseline to Endpoint in the International Index of Erectile Function (IIEF) Domains (Intercourse Satisfaction Domain, Orgasmic Function Domain, Sexual Desire Domain, Overall Satisfaction Domain)
Časové okno: Randomization (Baseline), Months 9 and 10.5 and 13.5
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Self-reported overall satisfaction during past 4 weeks.
Orgasmic function score is sum of Questions (Q)9 and 10 of IIEF.
Scores range from 0 (no sexual stimulation or intercourse) to 5 (high orgasm) for each Q, total 0 to 10. Sexual desire score is sum of Q11 and 12 of IIEF.
Scores range from 1 (low/no desire) to 5 (high desire) for each Q, total 2 to 10. Intercourse satisfaction score is sum of Q6, 7 and 8 of IIEF.
Scores range from 0 (no attempts for Q6, did not attempt intercourse for Q7 and no intercourse for Q8) to 5 (high satisfaction) for each Q, total 0 to 15. Overall satisfaction score is sum of Q13 and 14 of IIEF.
Scores range from 1 (low/no satisfaction) to 5 (high satisfaction) for each Q, total 2 to 10. Higher total scores for each domain indicate higher function.
MMRM analysis was used to calculate LS mean and 95% CI.
LS mean values are adjusted for baseline, treatment, country, visit, visit-by-treatment, age group, and age group-by-treatment (if significant at p<0.10).
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Randomization (Baseline), Months 9 and 10.5 and 13.5
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Erectile Dysfunction Inventory of Treatment Satisfaction (EDITS) Questionnaire Mean Score
Časové okno: Months 9 and 13.5
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The EDITS questionnaire is a validated questionnaire consisting of 11 questions evaluating self-reported satisfaction with the erectile dysfunction (ED) treatment.
Responses were based on the experiences during the previous 4 weeks.
Each question is rated on a scale of 0 (extremely low treatment satisfaction) to 4 (extremely high treatment satisfaction).
The EDITS mean score was obtained by adding each individual result for all questions, dividing by the number of questions answered.
The mean scores range from 0 (extremely low treatment satisfaction) to 4 (extremely high satisfaction).
The Mixed Model for Repeated Measures (MMRM) analysis was used to calculate Least Squares (LS) mean and 95% Confidence Interval (CI).
LS mean values are adjusted for treatment, country, visit, visit-by-treatment, age group, and age group-by-treatment (if significant at p<0.10).
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Months 9 and 13.5
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Change From Baseline in Self Esteem and Relationship (SEAR) Questionnaire Score
Časové okno: Randomization (Baseline), Months 9 and 13.5
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The SEAR questionnaire is a participant-reported measure of psychosocial outcomes in men with erectile dysfunction (ED).
It consists of 14 items.
Sexual Relationship domain consists of 8 items (items 1-8).
Items 2-8 are rated on a scale of 1 (Never) to 5 (Always), whereas item 1 is reverse scored (1=Always and 5=Never).
The total scores for sexual relationship domain range from 8-40 with higher scores indicating better relationship.
Self-Esteem subdomain contains items 9 through 12 rated on a scale of 1 (no/low self-esteem) to 5 (high self-esteem).
Total scores for Self-Esteem subscale range from 4-20 with higher scores indicating higher self-esteem.
The Mixed Model for Repeated Measures (MMRM) analysis was used to calculate Least Squares (LS) mean and 95% Confidence Interval (CI).
LS mean values are adjusted for baseline domain score, treatment, country, visit, visit-by-treatment, age group, and age group-by-treatment (if significant at p<0.10).
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Randomization (Baseline), Months 9 and 13.5
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Global Assessment Questions (GAQ) Question 1 at Month 9
Časové okno: Month 9
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GAQ Question 1: Choose the one number which best describes how you perceive your ability to achieve and maintain your erections now, compared to how it was before you began taking medication in this study.
Responses range from very much better (1) to very much worse (7).
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Month 9
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Global Assessment Question (GAQ) Question 1 at Month 13.5
Časové okno: Month 13.5
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GAQ Question 1: Choose the one number which best describes how you perceive your ability to achieve and maintain your erections now, compared to how it was before you began taking medication in this study.
Responses range from very much better (1) to very much worse (7).
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Month 13.5
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Global Assessment Question (GAQ) Question 2 at Month 9
Časové okno: Month 9
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GAQ Question 2: Choose the one number which best describes how you perceive your sexual life is now, compared to how it was before you began taking medication in this study.
Responses range from very much better (1) to very much worse (7).
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Month 9
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Global Assessment Question (GAQ) Question 2 at Month 13.5
Časové okno: Month 13.5
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GAQ Question 2: Choose the one number which best describes how you perceive your sexual life is now, compared to how it was before you began taking medication in this study.
Responses range from very much better (1) to very much worse (7).
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Month 13.5
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Residual Erectile Function (REF) at Baseline
Časové okno: Baseline
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The participant is asked to rate the hardness of his erection using a 5-point grading system, with 0 (penis does not enlarge), 1 (penis is larger but not hard), 2 (penis is hard but not enough for penetration), 3 (penis is hard enough for penetration but not completely hard), 4 (penis is completely hard and fully rigid.)
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Baseline
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Residual Erectile Function (REF) at Month 2
Časové okno: Month 2
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The participant is asked to rate the hardness of his erection using a 5-point grading system, with 0 (penis does not enlarge), 1 (penis is larger but not hard), 2 (penis is hard but not enough for penetration), 3 (penis is hard enough for penetration but not completely hard), 4 (penis is completely hard and fully rigid.)
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Month 2
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Residual Erectile Function (REF) at Month 5
Časové okno: Month 5
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The participant is asked to rate the hardness of his erection using a 5-point grading system, with 0 (penis does not enlarge), 1 (penis is larger but not hard), 2 (penis is hard but not enough for penetration), 3 (penis is hard enough for penetration but not completely hard), 4 (penis is completely hard and fully rigid.)
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Month 5
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Residual Erectile Function (REF) at Month 9
Časové okno: Month 9
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The participant is asked to rate the hardness of his erection using a 5-point grading system, with 0 (penis does not enlarge), 1 (penis is larger but not hard), 2 (penis is hard but not enough for penetration), 3 (penis is hard enough for penetration but not completely hard), 4 (penis is completely hard and fully rigid.)
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Month 9
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Residual Erectile Function (REF) at Month 10.5
Časové okno: Month 10.5
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The participant is asked to rate the hardness of his erection using a 5-point grading system, with 0 (penis does not enlarge), 1 (penis is larger but not hard), 2 (penis is hard but not enough for penetration), 3 (penis is hard enough for penetration but not completely hard), 4 (penis is completely hard and fully rigid.)
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Month 10.5
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Residual Erectile Function (REF) at Month 13.5
Časové okno: Month 13.5
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The participant is asked to rate the hardness of his erection using a 5-point grading system, with 0 (penis does not enlarge), 1 (penis is larger but not hard), 2 (penis is hard but not enough for penetration), 3 (penis is hard enough for penetration but not completely hard), 4 (penis is completely hard and fully rigid.)
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Month 13.5
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Change From Baseline in 'Yes' Answers to Questions 1 to 5 of the Sexual Encounter Profile (SEP)
Časové okno: Randomization (Baseline), Months 9 and 10.5 and 13.5
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Participant-assessed diary has 5 questions: Question (Q)1: erection achievement, Q2: successful penetration, Q3: successful intercourse, Q4: satisfied with erection, and Q5: satisfied with sexual experience) for each sexual encounter made over a specified period of time.
SEP Q1-Q5 scores were determined as the percentage of 'Yes' responses to each of the 5 questions out of all sexual attempts recorded during the time period.
The Mixed Model for Repeated Measures (MMRM) analysis was used to calculate Least Squares (LS) mean and 95% confidence interval (CI).
LS mean values are adjusted for treatment, country, visit, visit-by-treatment, age group, and age group-by-treatment (if significant at p<0.10).
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Randomization (Baseline), Months 9 and 10.5 and 13.5
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Change From Baseline in 'Yes' Answers to Morning Erections
Časové okno: Randomization (Baseline), Month 10.5
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The participants were asked to complete the morning erections diary every morning during the 4-week period before randomization and during the 6-week, Drug-Free, Washout Period.
Data presented are the changes in the participant's percentage of "yes" responses relative to the number of days the question was answered during treatment.
The analysis of covariance (ANCOVA) was used to calculate Least Square (LS) mean and 95% confidence interval (CI).
LS mean values are adjusted for treatment, baseline morning erections frequency, age group and country.
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Randomization (Baseline), Month 10.5
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Standardized Morning Erections Question (SMEQ) Score at Month 2
Časové okno: Month 2
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Participants evaluated the frequency of their morning erections during the past 3-month period by answering the SMEQ ("Do you ever wake up with an erection") using a 4-point grading system ranging from 0 (Yes, regularly) to 3 (never).
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Month 2
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Standardized Morning Erections Question (SMEQ) Score at Month 9
Časové okno: Month 9
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Participants evaluated the frequency of their morning erections during the past 3-month period by answering the SMEQ ("Do you ever wake up with an erection") using a 4-point grading system ranging from 0 (Yes, regularly) to 3 (never).
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Month 9
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Standardized Morning Erections Question (SMEQ) Score at Month 13.5
Časové okno: Month 13.5
|
Participants evaluated the frequency of their morning erections during the past 3-month period by answering the SMEQ ("Do you ever wake up with an erection") using a 4-point grading system ranging from 0 (Yes, regularly) to 3 (never).
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Month 13.5
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Change From Baseline in 26-item Expanded Prostate Cancer Index Composite (EPIC-26) Questionnaire Score
Časové okno: Randomization (Baseline), Months 9 and 13.5
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EPIC-26 (participants) contains 26 items and 5 domains: Urinary Incontinence (Items 1-4), Urinary Irritative/Obstructive (Items 5-8), Bowel (Items 10-15), Sexual (Items 16-21), and Hormonal (Items 22-26).
Response options for each EPIC item form a Likert scale, and multi-item scale scores are transformed linearly to a 0 to 100 scale for each domain, with higher scores representing better health-related quality of life.
Responses are based on experiences during the previous 4 weeks.
The Mixed Model for Repeated Measures (MMRM) analysis was used to calculate Least Squares (LS) mean and 95% confidence interval (CI).
LS mean values are adjusted for baseline domain score, treatment, country, visit, visit-by-treatment, age group, and age group-by-treatment (if significant at p<0.10).
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Randomization (Baseline), Months 9 and 13.5
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Change in Penile Length and Girth
Časové okno: Randomization (Baseline), Month 9
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Measurements were performed with the penis in the flaccid state.
The stretched penile length was measured from the tip of the glans to the pubopenile skin junction while applying tension to maximally stretch the penis.
The penile circumference at midshaft was measured.
All measurements were taken with a paper ruler to the nearest 0.5 centimeter (cm).
The analysis of covariance (ANCOVA) was used to calculate Least Square (LS) mean and 95% confidence interval (CI).
LS mean values are adjusted for treatment, baseline, age group and country.
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Randomization (Baseline), Month 9
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Spolupracovníci a vyšetřovatelé
Zde najdete lidi a organizace zapojené do této studie.
Sponzor
Publikace a užitečné odkazy
Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.
Obecné publikace
- Montorsi F, Oelke M, Henneges C, Brock G, Salonia A, d'Anzeo G, Rossi A, Mulhall JP, Buttner H. Exploratory Decision-Tree Modeling of Data from the Randomized REACTT Trial of Tadalafil Versus Placebo to Predict Recovery of Erectile Function After Bilateral Nerve-Sparing Radical Prostatectomy. Eur Urol. 2016 Sep;70(3):529-37. doi: 10.1016/j.eururo.2016.02.036. Epub 2016 Mar 3.
- Patel HR, Ilo D, Shah N, Cuzin B, Chadwick D, Andrianne R, Henneges C, Barry J, Hell-Momeni K, Branicka J, Buttner H. Effects of tadalafil treatment after bilateral nerve-sparing radical prostatectomy: quality of life, psychosocial outcomes, and treatment satisfaction results from a randomized, placebo-controlled phase IV study. BMC Urol. 2015 Apr 12;15:31. doi: 10.1186/s12894-015-0022-9.
- Montorsi F, Brock G, Stolzenburg JU, Mulhall J, Moncada I, Patel HR, Chevallier D, Krajka K, Henneges C, Dickson R, Buttner H. Effects of tadalafil treatment on erectile function recovery following bilateral nerve-sparing radical prostatectomy: a randomised placebo-controlled study (REACTT). Eur Urol. 2014 Mar;65(3):587-96. doi: 10.1016/j.eururo.2013.09.051. Epub 2013 Oct 13.
Termíny studijních záznamů
Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.
Hlavní termíny studia
Začátek studia
1. listopadu 2009
Primární dokončení (Aktuální)
1. října 2012
Dokončení studie (Aktuální)
1. října 2012
Termíny zápisu do studia
První předloženo
3. prosince 2009
První předloženo, které splnilo kritéria kontroly kvality
3. prosince 2009
První zveřejněno (Odhad)
4. prosince 2009
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Odhad)
14. ledna 2014
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
12. prosince 2013
Naposledy ověřeno
1. prosince 2013
Více informací
Termíny související s touto studií
Klíčová slova
Další relevantní podmínky MeSH
Další identifikační čísla studie
- 13086
- H6D-EW-LVIK (Jiný identifikátor: Eli Lilly and Company)
Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .
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