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Clinical Trial Summary

This prospective study aimed to compare the clinical outcomes between the use of the erbium: YAG (Er:YAG) laser, intraurethrally administered in long non-ablative SMOOTH™ train of pulses applied at the level of the male prostatic urethra, to the use of the pharmacological treatment of oral tadalafil for the treatment of chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). The results show that both treatments are effective in alleviating symptoms of CP/CPPS. The non-ablative Er:YAG SMOOTHTM laser seems to be a promising treatment for this widely spread condition. More studies are needed to confirm its safety and efficacy.


Clinical Trial Description

Prostatitis is the most common diagnosis (>50%) in men visiting outpatient urological clinics .

The NIH classification classifies prostatitis into 4 types: category I - acute bacterial prostatitis, which is very rare, affecting only up to 5% of patients; category II- chronic bacterial prostatitis, also affecting up to 5% of patients; category III- chronic nonbacterial prostatitis/chronic pelvic pain syndrome (CP/CPPS), which is the most common, as it affects 90%-95% of cases; and Category IV- asymptomatic inflammatory prostatitis, which has unknown prevalence and also unknown clinical significance.

Although category III or CP/CPPS is the most prevalent form of prostatitis, its causes are largely unknown and treatments often fail to alleviate symptoms in the long term. In contrast, patients suffering from type I and II prostatitis are successfully treated with antibiotics, as a uropathogen or an infectious agent is usually identified as the cause .

CP/CPPS is characterized by pain in the perineum and tenderness in the prostate and various urological symptoms (urgency, frequency, low urethral pressure) and sometimes also ejaculatory symptoms, such as painful ejaculation.

Currently used treatments for CP/CPPS are mainly pharmacological, including alpha blockers, 5-alpha reductase inhibitors, anti-inflammatories, antibiotics, phytotherapy, allopurinol, botulinum toxin and traditional Chinese medicine . Non-pharmacological therapies include acupuncture, prostatic massage, extracorporeal shockwave therapy, pulsed magnetic field therapy, transrectal and transurethral thermotherapy and others . Some of the abovementioned therapies alleviate symptoms by improving vascularisation and blood flow of the prostate and peri-prostatic area. This is also the mechanism of action of the erbium:YAG (Er:YAG) laser with non-ablative SMOOTH™ mode - it works by thermal pulsing of the treated surface, with microsecond-range long pulses combined into long (several hundred millisecond range) sequences. Each laser micropulse sharply increases tissue temperature and acts as a stimulative trigger. Long pulse trains cause slower diffusion of heat to deeper layers of the skin or mucosa, causing initially vasodilation and then collagen remodelling and stimulation of fibroblasts with collagen remodelling. It has shown to improve vascularisation and alleviate symptoms of genitourinary syndrome of menopause (GSM) in women, including irritation, dryness and pain. It has also been used intraurethrally in women to alleviate urinary symptoms of GSM. Intraurethral thermal therapy has been previously shown promising in the treatment of CP/CPPS in men. In this study the investigators aimed to assess the safety and effectiveness of transurethral non-ablative Er:YAG laser therapy applied at the level of the male prostatic urethra and to compare it with pharmacological treatment of 5 mg oral tadalafil for the treatment of CP/CPPS. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04446598
Study type Interventional
Source Espacio Gaspar Clinic
Contact
Status Completed
Phase N/A
Start date March 13, 2017
Completion date December 31, 2018

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