Objective: The purpose of this study was to evaluate the clinical efficacy and safety of Ningmitai capsule alone or in combination with sildenafil compared with sildenafil alone in the treatment of CP/CPPS with erectile dysfunction. Study Design: A multicenter, prospective, randomized and positive drug-controlled clinical study design was adopted. Interventions: ① Western medicine group (sildenafil): Sildenafil citrate, 25mg/capsule, once a night, one capsule each time, for 4 weeks. ② Chinese medicine group (Ningmitai capsule): Ningmitai capsule, 0.38 g/capsule, 3 times a day, 4 capsules each time, taken after meals for 4 weeks continuously. ③ Combination group (Ningmitai capsule + sildenafil): Ningmitai capsule, 0.38 g/capsule, 3 times a day, 4 capsules each time, taken after meals; Sildenafil citrate, 25mg/capsule, once a night, one capsule each time, was taken continuously for 4 weeks.
Sample size: 214
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
254
Subjects were given sildenafil citrate, 25mg/capsule, once a night, one capsule each time, for 4 weeks.
The subjects took Ningmitai capsule, 0.38 g/capsule, 3 times a day, 4 capsules each time, after meals, and continued to treat for 4 weeks.
The subjects took Ningmitai capsule orally, 0.38 g/capsule, 3 times a day, 4 capsules each time, and took it after meals. Sildenafil citrate, 25mg/capsule, once a night, one capsule each time, was taken orally for 4 weeks.
The First Affiliated Hospital of Sun Yat-sen University
Guangzhou, Guangdong, China
The response rate of patients at 4 weeks of treatment.
The response rate is defined as the proportion of patients whose NIH-CPSI pain score decreased by at least 4 points and IIEF-5 score or EHS score increased at 4 weeks of treatment.
Time frame: Treatment for 4 weeks
NIH-CPSI sub-score and its change value compared with baseline period at 2 weeks and 4 weeks of treatment
National Institutions of Health Chronic Prostatitis Symptom Index（NIH-CPSI，0\~43 points） consists of three subscales. The first part is pain symptoms, which consists of questions 1\~4 (0\~21 points), and evaluates the location, frequency and severity of pain. The second part is urination symptoms, which consists of questions 5\~6 (0 \~ 10 points), and evaluates the severity of incomplete urination and frequent urination; The third part is to evaluate the impact on the quality of life, which consists of questions 7\~9 (0\~12 points).The higher the score, the more serious the symptoms of chronic prostatitis.
Time frame: Treatment for 2 and 4 weeks
At 2 and 4 weeks of treatment, IIEF-5 score and its change compared with baseline.
Change value = IIEF-5 score after treatment-baseline IIEF-5 score IIEF-5 contains five questions about erectile status, confidence in maintaining erection and satisfaction with sexual intercourse, and is widely used to diagnose ED, judge the severity of ED and evaluate the effectiveness of drug treatment for ED. Total score 25 points, the lower the score, the more serious the symptoms.
Time frame: Treatment for 2 and 4 weeks
The evaluation grade of EHS of patients at 2 weeks and 4 weeks of treatment
Erectile hardness score (EHS) is a commonly used method to evaluate the severity of ED in clinic. They are divided into grade I (severe ED), grade II (moderate ED), grade III (mild ED) and grade IV (normal erectile function).
Time frame: Treatment for 2 and 4 weeks
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