他达拉非独特的时间顾虑收益

社会心理因素在勃起功能障碍(ED)的发病过程中占到了十分重要的地位。一种理想的治疗药物应能给患者及其伴侣带来满意的社会心理收益。"心理与人际关系量表"(PAIRS量表)既能评价ED对患者及其伴侣的心理及人际关系影响,又能预测ED患者对治疗的满意度。利用PAIRS量表对5型磷酸二酯酶(phosphodies-terasetype5,PDE5)抑制剂治疗ED的疗效进行评估,发现在降低ED患者性活动相关性时间顾虑方面,他达拉非明显优于西地那非和伐地那非。这也正是ED患者及其伴侣在临床治疗条件下偏好使用他达拉非的深层原因。与此相关的药物属性则是他达拉非长达36h的卓越疗效。     

他达拉非:ED患者及其配偶的选择偏爱?

勃起功能障碍(erectile dysfunction,ED)是男性常见疾病,直接影响患者及其配偶的生活质量。PDE5抑制剂是治疗ED的首选药物。尽管临床主要有3种PDE5抑制剂(西地那非、伐地那非和他达拉非)可供选择,但是患者及其配偶在选择PDE5抑制剂上是否有偏好,以及影响其选择的因素又有哪些本文简要地综述了最近的研究进展。     

一项随机、开放标签的交叉对比研究:他达拉非每日一次与他达拉非或西地那非临时服用对ED患者性自信及其他疗效的对比

<正>PDE5抑制剂的疗效维持时间对ED患者改善性交时间顾虑、增强性自信和性主动、改善与性伴侣亲密度具有重要意义。他达拉非OAD治疗比短效PDE5抑制剂如西地那非临时服用更有效改善ED患者的性心理。评价对于PDE5抑制剂疗效满意的ED患者,他达拉非OAD治疗是否比西地那非PRN治疗更好地改善     

评估一项随机、双盲、安慰剂对照、平行研究——他达拉非OAD治疗对PDE5抑制剂初次治疗ED患者的疗效和安全性

<正>研究背景:已有的他达拉非OAD治疗研究的研究对象多为非PDE5抑制剂初次使用的患者。而PDE5抑制剂初次使用的患者对他达拉非OAD治疗的疗效和安全性相关数据,还很少。他达拉非OAD治疗的疗效和安全性在多个全球性临床研究中已被证实,他达拉非OAD连续治疗12和24周均耐受性良好并显著改善勃起功能。对罹患糖尿病的ED患者,他达拉非OAD治疗也显著改善勃起功能。两项开放标签的临     

既往从未接受过5型磷酸二酯抑制剂治疗的男性勃起功能障碍患者对枸橼酸西地那非和他达拉非治疗偏好的相关因素:来自多中心性、随机性、开放式、交叉研究数据的事后分析

为了确定患者基线特征、治疗效果、心理社会结果或耐受性是否与既往从未接受过5型磷酸二酯酶(PDE5)抑制剂治疗的男性勃起功能障碍(ED)患者对枸橼酸西地那非(西地那非)或他达拉非治疗的选择偏好有关,Eardley等进行了一项开放式、交叉研究,对367例按需服用西地那非(25、50若100mg)若他达拉非(10或20 mg)的ED患者的治疗药物选择偏好进行了研究.     

他达拉非治疗ED疗效和安全性新进展

他达拉非——长效5型磷酸二酯酶(PDE5)抑制剂是治疗勃起功能障碍(ED)的首选药物之一。许多临床研究证实其在普通ED患者、老年患者以及伴有糖尿病、脊髓损伤或前列腺癌术后患者中有较好的疗效和良好的安全性及耐受性,而且其独特的长达36 h的时间窗不仅增强了患者的自信心,更改善了患者及其伴侣的生活质量。     

他达拉非每日一次在勃起功能障碍中的应用:来自患者及其性伴侣的观点

勃起功能障碍(ED)是一种影响男性健康并危害两性关系的常见疾病.5型磷酸二酯酶(PDE5)抑制剂的诞生,使这些患者家庭的性生活质量获得了显著改善.这类药物被公认为大多数ED患者的一线用药.目前,有3种PDE5抑制剂--西地那非、他达拉非和伐地那非被批准在有性行为需求时使用,但其中只有他达拉获批可以每日服用1次.本综述总结了ED患者及其性伴侣对PDE5抑制剂的观点,并通过与他达拉非按需服用以及其他PDE5抑制剂类药物进行比较,明确了他达拉非每日1次的治疗方案是否有助于改善ED患者的心理状况(譬如性自信心、性行为自发性和时间顾虑).     

他达拉非治疗勃起功能障碍:卓越的36小时疗效

磷酸二酯酶5(PDE5)抑制剂是治疗勃起功能障碍(ED)的一线口服药物,与其他两种PDE5抑制剂(西地那非和伐地那非)相比,他达拉非有着起效快、服用方便和疗效显著的特点,但更为突出的是其较长的血浆清除半衰期带来的36h的持续药效,可以使患者和伴侣能更加自由地安排用药时间。患者和伴侣对他达拉非治疗的高满意度可能主要源于对用药时间顾虑的减少和对性生活时程关注度下降等社会心理收益。同时,他达拉非的安全性和耐受性良好,符合安全、有效、方便的用药原则,使其成为大多数ED患者及其伴侣偏爱的首选用药。     

低剂量他达拉非对慢性前列腺炎合并勃起功能障碍的疗效观察

慢性前列腺炎是男性常见的疾病,研究显示在我国的慢性前列腺炎患者中,合并勃起功能障碍(ED)较为常见[1].这不仅导致患者焦虑、自信心下降,而且对患者及其女性伴侣的生活质量也可产生巨大影响.1998年首个5型磷酸二酯酶(PDE5)抑制剂的问世给ED治疗带来了革命性的突破.ED是可以成功治疗的,这一观点目前已被普遍接受.他达拉非作为一个独特的长效口服PDE5抑制剂于2005年进入中国市场.其常规剂量(推荐剂量为每次20mg)效果肯定,但副作用也较明显[2],因而在一定时间内低剂量的他达拉非治疗此类疾病将成为新的研究方向.为了解低剂量他达拉非治疗慢性前列腺炎合并ED的疗效,我们对113例资料完整的患者的情况进行了回顾性分析.     

既往从未接受过5型磷酸二酯酶抑制剂治疗的男性勃起功能障碍患者对枸橼酸西地那非和他达拉非治疗偏好的相关因素:来自多中心性、随机化、开放式、交叉研究数据的事后分析

<正>为了确定患者基线特征、治疗效果、心理社会结果或耐受性是否与既往从未接受过5型磷酸二酯酶(PDE5)抑制剂治疗的男性勃起功能障碍(ED)患者对枸橼酸西地那非(西地那非)或他达拉非治疗的选择偏好有关,Eardley等进行了一项开放式、交叉研究,对367例按需服用西地那非(25、50或100 mg)或他达拉非(10或20 mg)的ED患者的治疗药物选择偏好进行了研究。在经过为期4周的基线评估期后,患者随机     

Physician-rated patient preference and patient- and partner-rated preference for tadalafil or sildenafil citrate: results from the Canadian 'Treatment of Erectile Dysfunction' observational study

OBJECTIVE: To determine physician-based ratings of patient preference, patient preference, partner preference and physician-based assessment of the reasons for patient preference for tadalafil or sildenafil citrate (sildenafil) as a treatment for erectile dysfunction (ED) in routine clinical practice. Phosphodiesterase type 5 inhibitors (PDE5i) are effective and well-tolerated therapies for ED, but patient and partner preferences for these treatments might be determined by many factors, both medical and nonmedical. PATIENTS AND METHODS: The Treatment of ED (TED) observational trial was a multicentre study conducted in Canada to determine patient and partner preferences for the PDE5i tadalafil or sildenafil in routine clinical practice. Patients who planned to change treatment from tadalafil or sildenafil to the alternative drug were invited to participate in the study. The study duration was 4-12 weeks. At visit 1 (baseline), patient background information was collected. At visit 2, physicians answered the physician-rated patient-treatment preference questionnaire, patients answered the treatment preference question (TPQ) and the global assessment question (GAQ), and partners answered the partner TPQ. RESULTS: The TED study was conducted at 266 sites across Canada and involved 2425 patients who used the allowed study medications, and 295 sexual partners who attended clinic visits. More than 98% of patients completed the study. Responses to the preference questionnaires showed that physician-rated patient preference, patient preference, and partner preference had a similar pattern preference, with a significantly higher proportion preferring tadalafil over sildenafil regardless of the change in treatment (i.e. sildenafil to tadalafil or tadalafil to sildenafil). Responses to the GAQ showed that nearly 90% of the patients who took either PDE5i said that the treatment had improved erections. CONCLUSIONS: TED is the first study to assess physician-based ratings of patient preference, patient preference, and partner preference for tadalafil or sildenafil in a routine clinical practice settings. Most participants preferred tadalafil over sildenafil. Understanding the underlying reasons influencing the preference might improve patient compliance and satisfaction with treatment.     

同期内使用3种PDE5抑制剂治疗ED的经验

目的:观察与比较同期内使用3种PDE5抑制剂治疗ED患者的疗效,满意情况和不良反应。分析影响患者疗效、接受度、倾向性的因素。方法:11个月在门诊应用3种PDE5抑制剂治疗ED患者331例。使用西地那非134例,他达拉非88例,及伐地那非109例。医师详细指导药物的应用,注意事项,观察的内容等,并互留电话,列表登记、随访。结果:复诊或电话随访时间,结果为:①获得良好的疗效及满意率为西地那非72例(79.12%),他达拉非52例(78.78%),伐地那非63例(81.81%)。②PDE5抑制剂单纯或交叉应用的资料分析显示:青年患者或新婚者,偏好伐地那非;③中青年患者倾向于他达拉非;中老年及较长期应用PDE5抑制剂的患者多选用西地那非。3种PDE5抑制剂用于早泄均有一定疗效。④对不能继续用此类药治疗ED的原因进行了分析,分别为:价高,不治本,效果差,耽心不良反应。结论:①同期3种PDE5抑制剂治疗ED的疗效基本相近。亦各有一些优势和特点。②3种PDE5抑制剂的安全性均好,一般、轻度不良反应相近,中度、特殊的不良反应少,严重不良反应均无发生。③PDE5抑制剂的疗效观察,目前众多的问卷、量表实际均仍以主观的感受为主。对同一个人以相同形式、相同问题、繁简一致阐述,获得的有关疗效满意情况、感受等简易回答是有可比性、可信度和实用性的。     

Synergetic effect of testosterone and phophodiesterase-5 inhibitors in hypogonadal men with erectile dysfunction: A systematic review

Testosterone deficiency seems to impair the clinical response to phophodiesterase-5 (PDE-5) inhibitors in patients with erectile dysfunction (ED). In hypogonadal men, testosterone repletion was associated with enhanced sexual function in patients who failed initial treatment with sildenafil or tadalafil. We conducted a systematic review of studies that evaluated combination therapy of testosterone and PDE-5 inhibitors in patients with ED and low, low-normal testosterone levels who failed monotherapy. The studies we examine are heterogeneous with several methodological drawbacks and that, overall, the addition of testosterone to PDE-5 inhibitors might benefit patients with ED associated with testosterone <300 ng/dL (10.4 nmol/L) who failed monotherapy. Further studies, with a randomized placebo-controlled and double blind design, are needed to describe the appropriate target patient group, testosterone cut-off and to define the optimal dose and duration of combination therapy.     

Do vardenafil and tadalafil have advantages over sildenafil in the treatment of erectile dysfunction?

Erectile dysfunction (ED) affects up to 50% of men between the ages of 40 and 70 years of age. Sildenafil, vardenafil and tadalafil have all been shown to be similarly effective in the treatment of men with ED of vary etiologies, to have similar adverse effects profiles, and to improve quality-of-life by similar amounts. As these phosphodiesterase 5 (PDE5) inhibitors all increase the hypotensive effects of nitrates, they are not suitable for use in patients taking nitrates for the treatment of ischaemic heart disease. All three inhibitors must be used with caution in patients taking alpha(1)-adrenoceptors antagonists for benign prostatic hyperplasia. Although nonarteritic anterior ischaemic neuropathy has been reported in some users of the PDE5 inhibitors, there is no conclusive evidence that PDE5 inhibitors cause this rare effect. Tadalafil has a longer half-life than sildenafil or vardenafil, and a longer duration of action than sildenafil and vardenafil. Most preference studies have shown tadalafil to be preferred, but there are serious limitations to some of these studies. One approach to treatment is to give each patient a short- and long-acting agent, and for individuals to decide their preference.     

Treatment preferences in men with erectile dysfunction： an open label study in Korean men switching from sildenafil citrate to tadalafil

To evaluate patient preferences for sildenafil citrate or tadalafil （PDE-5 inhibitors available for the treatment of erectile dysfunction [ED]） and assess potential reasons for these preferences. Methods： This open-label study was conducted on Korean men taking sildenafil, at least 6 weeks prior to study entry, for ED. Following screening, patients continued sildenafil treatment for 4 weeks, then after a 1-week washout period, switched to tadalafil for 8 weeks. Patients then continued with their treatment of choice during an extension phase. Psychosocial factors （time concern, spontaneity, sexual self-confidence） were evaluated using Psychological and Interpersonal Relation- ship Scales （PAIRS）, while timing of dose to sexual attempt patterns were assessed from patient diaries. Results： The present study enrolled 160 Korean men （mean age 55 years） with prior median sildenafil use of 585 days. During the extension phase, 73.7% of patients elected to take tadalafil, whereas 26.3% chose sildenafil （P 〈 0.001）. After switching from sildenafil to tadalafil, mean PAIRS time concern scores decreased from 2.54 to 2.42 （P = 0.002）, with no statistically significant differences observed between the sildenafil and tadalafil assessment phases in sexual spontaneity and self-confidence scores. Sexual attempts made 〉 4 h to 〈 36 h post-dose occurred in 4.5% of patients during the sildenafil assessment phase compared with 17.5% during the tadalafil assessment phase. Conclusion： After experiencing both sildenafil and tadalafil, the majority of patients exhibited a preference for tadalafil. This preference might be influenced by psychosocial factors, such as decreased time concerns, and a broader window of opportunity available for sexual activity.     

Phosphodiesterase type 5 inhibitors for the treatment of erectile dysfunction in patients with diabetes mellitus

Sildenafil, a phosphodiesterase 5 (PDE5) inhibitor, has become a first-line therapy for diabetic patients with erectile dysfunction (ED). The efficacy in this subgroup, based on the Global Efficacy Question, is 56% vs 84% in a selected group of non-diabetic men with ED. Two novel PDE5 inhibitors, tadalafil (Lilly ICOS) and vardenafil (Bayer), have recently completed efficacy and safety clinical trials in 'general' and diabetic study populations and are now candidates for US FDA approval. A summary analysis of the phase three clinical trials of sildenafil, tadalafil and vardenafil in both study populations is presented to provide a foundation on which the evaluation of the role of the individual PDE5 inhibitors for the treatment of patients with ED and DM can be built.     

The treatment of erectile dysfunction study: focus on treatment satisfaction of patients and partners

OBJECTIVE: To assess patient and partner preferences for, and satisfaction with, tadalafil or sildenafil (phosphodiesterase type 5 inhibitors) in routine clinical practice for treating erectile dysfunction (ED), as these are important outcomes that might influence treatment adherence. PATIENTS AND METHODS: In a multicentre, prospective observational trial in Canada, patients with ED were eligible if they planned to change treatment from tadalafil to sildenafil or vice versa. Data were collected at baseline and 4-12 weeks later (endpoint). Satisfaction was assessed using patient and partner versions of the Erectile Dysfunction Inventory of Treatment Satisfaction (EDITS) questionnaire. EDITS index scores range from 0 (extremely low treatment satisfaction) to 100 (extremely high treatment satisfaction). RESULTS: Of 2425 patients, approximately 98% completed the study and 295 partners participated. When patients changed from sildenafil to tadalafil (1722 men) the mean EDITS index scores increased significantly for both patients (from 61.6 to 78.3) and partners (from 65.0 to 82.6; both P < 0.001). When patients changed from tadalafil to sildenafil (703 men), the mean EDITS index scores increased slightly but significantly for patients (from 68.8 to 70.2; P = 0.007) but not partners (from 76.8 to 68.9; P = 0.066). For the individual EDITS questions, mean scores increased significantly from baseline to endpoint on all questions for patients (all 11 questions; P < 0.001) and partners (all five questions; P < 0.001) in the sildenafil-to-tadalafil group, and in the tadalafil-to-sildenafil group, mean scores for patients decreased on nine of 11 questions (seven of nine significantly; P < 0.041) and mean scores for partners decreased on all five (two significantly; P < 0.049). For treatment preference, regardless of the change in treatment (i.e. sildenafil-tadalafil or tadalafil-sildenafil), a significantly higher percentage of patients and partners preferred tadalafil to sildenafil. CONCLUSIONS: These data indicate that patients with ED (and their partners) who changed from sildenafil to tadalafil treatment or vice versa in a routine clinical practice setting had higher treatment satisfaction when taking tadalafil than sildenafil, as assessed by most measures of EDITS. The higher treatment satisfaction with tadalafil might help to explain the greater preference for tadalafil compared with sildenafil in both patients and partners in this observational study.     

Chronic low dosing of phosphodiesterase type 5 inhibitor for erectile dysfunction

Oral phosphodiesterase type 5 (PDE5) inhibitors have provided non-invasive, effective, and well-tolerated treatments for patients with erectile dysfunction (ED). However, many patients with ED are unresponsive to 'on-demand' PDE5 inhibitors. In addition, the lack of spontaneity and naturalness of the on-demand regimen could be a reason for decreased compliance with PDE5 inhibitors. Recently, tadalafil and udenafil were approved for low-dose daily administration for the treatment of ED. Since the introduction of the concept of daily administration of PDE5 inhibitors, several reports have supported the potential benefits of this therapy for disease modification, improvement of the treatment response in difficult-to-treat populations, spontaneity, and safety, although further research is needed to better address these hypotheses. In this article, we reviewed the daily administration of PDE5 inhibitors in terms of pharmacokinetics, safety, efficacy, and distinct features.