[Imidafenacin for treatment of overactive bladder and urgent urinary incontinence: the results of open-label multicenter randomized controlled clinical trial]

INTRODUCTION

The analysis of the results of a multicenter, open, randomized comparative phase III clinical trial on the use of imidafenacin for treating patients with OAB was carried out. A clinical study was conducted according to GCP standards in 12 urological centers of the Russian Federation with the support of company AO "R-Pharm".

MATERIALS AND METHODS

A total of 296 patients (men and women) aged from 18 to 65 years with OAB and urgent urinary incontinence were included in the study. All patients were randomized into two groups. In Group 1 (n=148) patients received -cholinoblocker imidafenacin 1 tablet (0,1 mg) twice a day. Group 2 patients (n=148) were prescribed a comparison drug tolterodine 1 tablet (2 mg) twice a day, as well. The duration of treatment was 12 weeks.

RESULTS

The analysis of results showed a significant decrease in the OAB symptoms in both groups. In Group 1 a decrease of episodes of urge urinary incontinence was more pronounce compared to Group 2, as well as amount of day-time and night-time of episodes of urge urinary incontinence by the 2nd, 4th, 8th and 12th weeks of treatment in comparison with baseline scores. There were no differences between two groups in the severity of reducing average urinary frequency per day. Reducing the severity of urinary disturbances in patients of both groups was accompanied by an improvement in the quality of life. There was a significant and similar decrease in the average total score of both OAB Awareness Tool and EQ-5D questionnaires. Tolerability of treatment was satisfactory in both groups and there were no differences in the adverse events in Group 1 and 2.

CONCLUSION

Imidafenacin showed high clinical efficacy for treating patients with OAB, which is not inferior, and in some values, is superior in comparison to tolterodine. Both drugs had a similar safety and tolerability profile.

MANAGEMENT OF ERECTILE DYSFUNCTION IN CARDIOVASCULAR PATIENTS WITH COMORBIDITIES: REVIEW OF THE TRIALS ON CONTINUING THERAPY WITH PHOSPHODIESTERASE-5 MEDICATIONS

The review is focused on the issues of erectile dysfunction (ED) management by long term courses of continuous intake of the phosphodiesteraze-5 type (PDE5) inhibitors. ED is an actual problem of modern healthcare, prevalent and influencing negatively life quality and interpersonal relations. At early stages the management of ED by the PDE5 inhibitor drugs was regarded as symptomatic. However recently there are more and more publications that confirm continuous long term intake of PDE5 inhibitors. This can be explained by the mechanism of this drugs class action that includes the causation of the disorder, particularly, endothelial dysfunction. It is well konwn that in erectile dysfunction there is malfunction of nitric oxide synthesis by endothelium, and long term usage of PDE5 facilitates the increase of biochemical reactions that can be started by nitric oxide. Based on the review data, a proposition made that PDE5 inhibitors are not harmful for cardiovascular system, but may present with positive effects on cardiovascular system in general. The trials towards this direction continue. There is also a suggestion that intake of PDE5 inhibitors helps to restore normal endothelial function that may lead to better condition of cardiovascular system and decrease complications rate.

[Interdisciplinary problems of male health: point of view of a cardiologist]

Demographic situation in male population of Russia is analyzed in this review. The role of diseases of cardiovascular system and urogenital diseases including sexual disorders and androgen deficiency state in lowering of quality and duration of life of reproductive age men is shown. Modern outlook on metabolic syndrome, erectile dysfunction and androgen deficient state is presented. Meta-analysis of clinical studies of systemic effects of hormonal replacement therapy with the use of testosterone is conducted and problems of safety of its long term use are studied. An integrated scheme of diagnosis and treatment of erectile dysfunction, androgen deficient state and cardiovascular diseases is presented in this paper.

[Detection of erectile dysfunction and peculiarities of its treatment in men with high cardiovascular risk]

It has been demonstrated in a series of studies that erectile dysfunction (ED) appears to be one of risk factors and predictors of ischemic heart disease (IHD). According to the SSRC PM data in a cohort of 300 men with high cardiovascular risk ED was diagnosed in 61% of cases, while among 300 men with verified diagnosis of IHD was detected in 92.7% of cases. According to recommendations of the European Society of Urology changes of life style and correction of risk factors should precede therapy of ED or be components of complex therapy. It is known that some antihypertensive drugs (nonselective beta-adrenoblockers, thiazide diuretics) can negatively affect erectile function. According to data of comparative randomized clinical study average therapeutic doses of thiazide-like and thiazide diuretics in combination with ACE inhibitors do not worsen erectile function. Data on effect of lipid lowering therapy on erectile function are equivocal. Type 5 phosphodiesterase inhibitors (PDI) are first line preparations for the treatment of patients with ED. Safety of combination of type 5 PDI with main groups of antihypertensive drugs has been demonstrated in persons with risk factors of CVD and ED. The use of type 5 PDI in men depends on degree of compensation of cardiovascular system. In unstable cardiovascular events preparations of this group can be also carefully used. Simultaneous administration of nitrates is a contraindication for type 5 PDI.