Long-term tadalafil once daily in Chinese men with erectile dysfunction: a 2-year final analysis of a post-marketing, multicenter, randomized, open-label trial

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Even in elderly individuals or patients with diabetes and cardiovascular diseases, tadalafil could be used without unacceptable safety concerns, with possible vascular protection,25 as supported by previous studies.26–29 This may explain the relatively high treatment compliance rate, reaching 88.5% during the extension period, which was numerically higher than 82.5% found in the randomization period and similar to a previous report in Western patients.21 Men with ED might be satisfied with treatment when they regain normal erectile function, have spontaneous sexual activities, obtain pleasure and partner’s satisfaction, etc.30 In this study, once-daily tadalafil treatment almost met all the expectations of men with ED.

  • Tadalafil Cialis daily is a convenient option for men seeking reliability.
  • It reduces the need to plan around medication timing.
  • A healthcare provider will determine the best dose for you.
  • Consistent use helps sustain erectile function improvements.
  • It’s important to avoid recreational drugs during treatment.
  • Alcohol can negatively impact the medication’s efficacy.
  • Tell your doctor about all other medications taken.
  • Use caution if experiencing dizziness or vision issues.
  • The medication does not cause physical addiction.
  • Prescription use ensures safety and proper dosing.
  • Report any persistent or worsening side effects.
  • Proper storage of tadalafil prolongs its shelf life.

Rapidly and persistently improved erectile function, improved quality of sexual life (measured by SLQQ), and no need of scheduled sexual activity were the reasons why a high number of men with ED were satisfied with tadalafil once daily during the continuous treatment, corroborating previous studies.31,32 The current results suggested that tadalafil could be cialis woman regularly used for long-term treatment in clinical practice, and patients complied with this treatment. The effects of tadalafil in special patient groups such as elderly individuals and diabetes mellitus cases were not conducted in this study due to the small sample size in these subgroups. In addition, stratified analyses based on ED severity and previous ED therapy were not performed.

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These findings indicated that erectile function improvement could be maintained after 2 years of treatment with tadalafil, corroborating a previous study.21 Spontaneous sexual activity should be feasible for patients with ED who anticipated frequent intercourse. Compliance to tadalafil treatment should be considered when evaluating its clinical application. Patients with responses below expectations or intolerable AEs would discontinue the PDE5 inhibitor or switch to another one.24 Inability to perform scheduled sexual activities during on-demand treatment or an inconvenient dosing regimen may also lead to poor compliance.24 In this study, under regular tadalafil treatment, patients could have a spontaneous, natural sexual life. The incidence of TEAEs was 27.3% in the first 12 months and showed a low increase by 15.6% (from 27.3% to 42.9%) in the next 12 months, with no new safety signals, which supports the long-term application of tadalafil. The durable efficacy also largely increased the confidence and acceptability of Chinese men with ED after long-term regular use of tadalafil, even for 2 years. Future explorations are warranted to address these issues.

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In conclusion, this study provided 2-year data for tadalafil 5 mg once daily in Chinese men with ED, showing favorable safety profile, persistent improvement in sexual performance and satisfaction, and good long-term compliance. These findings supported the long-term daily administration of tadalafil 5 mg in Chinese men. HJ and LMZ participated in study design.

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In the randomization period, 192 (91.0%) patients in the 2.5 mg group and 388 (91.5%) in the 5 mg group completed the 3-month treatment, and all received subsequent tadalafil 5 mg once daily. In the extension period, 475 (74.8%) of the 635 patients completed the 24-month treatment (Figure 1). The reasons for treatment discontinuation during the trial were voluntary patient withdrawal (n = 91, 14.3%), loss to follow-up (n = 29, 4.6%), AEs (n = 10, 1.6%), protocol violation (n = 24, 3.8%), sponsor decision (n = 3, 0.5%), investigator decision (n = 2, 0.3%), and death (n=1, 0.2%). The median age of the 635 patients was 43.6 (range: 22.6–69.7) years. Most (75.9%) patients had mild or moderate ED based on IIEF-EF score, and 25.0% had previous ED therapy (Table 1).

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By month 24, total exposure time for tadalafil (mean ± standard deviation [s.d.]) was 622.5 ± 215.5 days. The compliance rate was 82.7% during the randomization period and 88.5% during the extension period. Totally, 631 patients had at least one dose of tadalafil. During the 24-month treatment period, 271 (42.9%) cases reported TEAEs, with the most common being viral upper respiratory tract infection (57 [9.0%]), upper respiratory tract infection (28 [4.4%]), and headache (15 [2.4%]), as shown in Table 2. Specifically, 211 (33.4%), 27 (4.3%), and 33 (5.2%) patients had mild, moderate, and severe AEs, respectively.

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TRAEs were reported in 49 (7.8%) patients, with the most common being headache (13 [2.1%]) and dizziness (9 [1.4%]). The incidence rates of cardiovascular TEAEs were 2.5% and 4.0% by months 12 and 24, respectively. Forty-four events occurred in 25 patients, including 28 mild, 9 moderate, and 7 severe cases. SAEs were reported in 32 (5.1%) patients by month 24 and 15 (2.4%) by month 12. Only one SAE (allergic rhinitis) was possibly associated with tadalafil treatment. ZCZ, LMZ, and HCL played a critical role in coordinating study conduction and manuscript preparation.

Dosage Suitable for Typical administration schedule
2.5 mg Mild ED, daily preference Once every 24 hours
5 mg Mild to moderate ED Once every 24 hours
10 mg Moderate ED, as needed Prior to anticipated activity
20 mg Severe ED, occasionally As needed, not daily

SY, JHL, ZHZ, JDL, YTD, and FBL participated in data acquisition and manuscript revision for intellectual content.

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This post-marketing, multicenter, randomized, open-label trial studied the long-term safety and efficacy of tadalafil in Chinese men with ED. Two-year daily application of tadalafil 5 mg continually improved sexual performance and patient satisfaction, with favorable safety profile and good compliance/tolerability. The current findings suggested regular daily tadalafil as a practical alternative for Chinese men with ED. A previous study reported an incidence for TEAEs with on-demand tadalafil of 43.7% after a 13.5-month treatment,20 reaching 71.6% at 2 years (12% TEAEs were severe and 6.3% of patients discontinued tadalafil due to AEs).9 For once-daily tadalafil treatment, the incidence rates of TEAEs were 39.6% at 13.5 months,20 53.4% at 1 year,21 and as high as 71.8% at 2 years (6.7% of patients had tadalafil discontinuation due to AEs).21 Previous meta-analyses showed a good tolerability profile for once-daily tadalafil treatment for at least 6 months, with combined incidence of TEAEs ranging from 30.4% to 34.4%.12,22 In this study, TEAEs were reported in 27.3% and 42.9% of patients at 1 year and 2 years posttreatment, respectively, which were mostly mild. Our phase 4 study with real-world data showed a relatively lower incidence of TEAEs and increased tolerability after long-term tadalafil treatment in Chinese men with ED.

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Since the most common TEAEs in this study were similar to those previously reported,9,20,21,23 daily use of tadalafil 5 mg for up to 2 years unveiled no additional safety signals in Chinese men with ED. Taken together, the safety data in this study indicated that long-term daily application of tadalafil 5 mg is well tolerated, not increasing the risk of AEs. In this study, the mean IIEF-EF score was rapidly increased from 15.4 at baseline to 21.2 at month 1, and further increased to 23.6 at month 12 and to 24.3 at month 24. The proportion of patients regaining normal erectile function was 27.9% at month 116 and further increased with further treatment (43.7% at month 1216 and 48.0% at month 24). The self-reported GAQ data revealed that a large proportion of patients had improved erectile function and the ability to engage sexual activity. All authors read and approved the final manuscript and agreed with the order of presentation of the authors. This work was sponsored by A. Menarini China Holding Co., Ltd. (Shanghai, China).

  • Tadalafil Cialis daily treatment is suitable for men with frequent ED episodes.
  • It helps in reducing performance anxiety by providing reliability.
  • Patients should take it at the same time each day for best results.
  • The medication may cause nasal congestion in some users.
  • Healthcare providers may adjust doses based on response.
  • Tadalafil may cause dizziness; caution is advised while driving.
  • It is contraindicated with certain heart medications.
  • The safety of daily tadalafil for women is not established.
  • Tadalafil can sometimes cause back pain or muscle aches.
  • Use caution if you experience sudden vision loss.
  • Overdose symptoms include prolonged erections and dizziness.
  • Store tadalafil in a cool, dry place out of reach of children.

A. Menarini China had no influence on the data and no competing interests.

  • Tadalafil Cialis daily offers flexibility and reduces performance anxiety.
  • It’s an easy daily pill for ongoing management.
  • Men report increased spontaneity with consistent use.
  • It provides reliable erections for up to 36 hours.
  • The risk of side effects is manageable with medical guidance.
  • It’s important to discuss health history before starting.
  • Missing doses can decrease effectiveness.
  • Side effects may include flushing, headache, or dizziness.
  • Alcohol can intensify side effects.
  • Store medication properly, out of reach of children.
  • Regular check-ins with your doctor enhance safety.
  • Use as part of a comprehensive sexual health plan.

Supplementary Information is linked to the online version of the paper on the Asian Journal of Andrology website.

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One (0.2%) death occurred after 389 cialis alternative days of tadalafil treatment. The cause of this death was myocardial infarction, whose relationship with tadalafil could not be determined and it was not related to any study procedures. Erectile function, as measured by IIEF-EF score, was significantly improved from baseline to month 18 (LSM change: 8.4, s.e. : 0.22, 95% CI: 8.0–8.8, P < 0.001) and was maintained to month 24 (LSM change: 8.6, s.e. : 0.23, 95% CI: 8.1–9.0, P < 0.001), as shown in Figure 2.

Tadalafil may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

The number of patients regaining normal erectile function was 223 (44.0%) among the 507 patients who completed the 18-month follow-up, versus 228 (48.0%) among the 475 patients who completed the 24-month follow-up. After 3 months of treatment, 173 (89.6%) patients answered “Yes” to Q1 and 167 (86.5%) answered “Yes” to Q2 among 193 patients with available GAQ data in the 2.5 mg tadalafil group. Of the 392 patients with available GAQ data in the 5 mg tadalafil group, 375 (95.7%) and 361 (92.1%) answered “Yes” to Q1 and Q2, respectively. The patients who answered “Yes” to Q1 and Q2 in the total population after 3 months of treatment were 548 (93.7%) and 528 (90.3%), respectively. After a 12-month treatment, 523 (97.5%) and 516 (95.9%) of 538 patients answered “Yes” to Q1 and Q2, respectively.

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After a 24-month treatment, 463 (96.1%) and 458 (95.0%) of 482 patients with available GAQ data answered “Yes” to Q1 and Q2, respectively (Figure 3). By month 3, the quality of sexual life, measured by SLQQ, was significantly improved in both the 2.5 mg (43.0% increase in quality of sexual life score, P < 0.001) and 5 mg (46.9% increase in quality of sexual life score, P < 0.001) groups. In the total population, the quality of sexual life score was increased by 45.8% (P < 0.001) at month 3, by 52.2% (P < 0.001) at month 12, and by 55.3% (P < 0.001) at month 24 (Figure 4a). The treatment satisfaction scores assessed by SLQQ (mean ± s.d.) were 57.8 ± 22.7 and 59.8 ± 21.8 in the 2.5 mg and 5 mg groups at month 3, respectively. The treatment satisfaction scores in the total population (mean ± s.d.) were 59.2 ± 22.1 at month 3, 62.4 ± 21.1 at month 12, and 65.9 ± 20.2 at month 24 (Figure 4b). clinical trial; erectile dysfunction; long-term safety; once-daily dosing; tadalafil Improves blood flow and may support vascular health: Research suggests an association with improved cardiovascular outcomes in some men.

Parameter Value Description
Half-life 17.5 hours Duration for the drug concentration to reduce by half
Onset of action 30-60 minutes Time before effect begins
Peak plasma time 2 hours Time to reach maximum concentration
Dosing frequency Once daily Recommended for daily use
Metabolism Liver (cytochrome P450) Mainly via CYP3A4 enzyme