Sexual Intercourse Attempt Patterns with Two Dosing Regimens of Tadalafil in Men with Erectile Dysfunction: Results from the SURE Study in 14 European Countries
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Bibliographic record
Abstract
OBJECTIVE: To describe the pattern of sexual attempts by men with erectile dysfunction (ED) taking tadalafil 20 mg on demand or on an alternative dosing regimen, 3 times/week, and to assess changes in sexual behavior when the patients were exposed to the alternative regimen. DESIGN AND METHODS: Scheduled use versus on-demand regimen evaluation (SURE) is a multicenter, crossover, open-label study conducted in 14 European countries. Men with ED (N = 4,262) were randomized to tadalafil 20 mg on-demand treatment (maximum one dose per day and before sexual activity) or 3 times/week for 5-6 weeks. After a 1-week washout period, patients were crossed over to the alternative regimen for 5-6 weeks. RESULTS: Nearly half (47%) of the attempts on the on-demand regimen and 71% of the attempts on the 3 times/week treatment were performed by patients more than 4 hours post dosing. Sexual activity occurred throughout the week on both regimens, with the highest percentage of attempts made during the weekend (50% on on-demand and 48% on 3 times/week) and evening and morning hours. The efficacy of tadalafil was more than 70% mean-per-patient success rate (Sexual Encounter Profile question 3) regardless of the time interval post dosing. CONCLUSIONS: Patients on tadalafil changed their sexual behavior significantly when on an alternative dosing regimen (3 times/week) and had sexual attempts distributed over a wide period of time post dosing. A substantial number of sexual attempts were performed beyond the first 4 hours post dosing on both regimens (47% for on-demand and 71% for 3 times/week) and preferably in the evening and morning hours. Tadalafil was efficacious regardless of the time interval post dosing-i.e., up to 36 hours. The two treatment regimens, on-demand and 3 times/week, provide an additional option and unique flexibility in dosing for men with ED and their partners.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.004 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it