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BACKGROUND: The multicompound herbal drug Padma 28 is based on a formula from Tibetan Medicine and has been used in Switzerland for over 30 years in the symptomatic treatment of circulatory disorders including intermittent claudication.OBJECTIVE: What is the current evidence regarding the clinical efficacy and safety of this drug in patients with peripheral arterial occlusive disease(PAOD)?
MATERIALS AND METHODS: Electronic databases were searched (each from inception to fall 2005) as well as the reference lists of the relevant articles.
RESULTS: 14 articles were found including 6 published studies, 1 un-published study, 6 double publications and 1 meta-analysis. Six studies analyzed maximum walking distance, 5 of these showed a significant increase. The pooled data of the meta-analysis confirmed a significant and clinically relevant increase of the maximum walking distance by more than 100 m in about 1 out of 5 patients. Serious adverse events were not related to verum, non-serious adverse events were equally frequent as under placebo.
CONCLUSIONS: The evidence available shows that the multi-target therapy with Padma 28 provides statistically significant and clinically relevant relief from PAOD-related symptoms, i.e. an increased walking distance.
BACKGROUND: The etiology of functional dyspepsia (FD) is multi-factorial. Its prevalence is high and it considerably impairs the patients' quality of life. The treatment options are limited. Padma Digestin, a multi-herbal formula from Tibetan Medicine, is traditionally used in malabsorption and dyspeptic symptoms as they do occur in FD, but as yet no clinical data exist on the formula. The aim of this study was to evaluate the safety, tolerability, and efficacy of Padma Digestin in patients with FD in a prospective, open, clinical phase III trial.PATIENTS AND METHODS: Patients were recruited by general practitioners, internists, and gastroenterologists and treated with 2 × 3 capsules of Padma Digestin daily for 6 weeks. Dyspeptic symptoms were analyzed using the Domestic/International Gastroenterology Surveillance Study (DIGEST) questionnaire extended by the 2 symptoms stomach cramps and lack of appetite. The quality of life was assessed using the Psychological General Well-Being Index (PGWBI-S) questionnaire (short version).
RESULTS: 37 patients were admitted and efficacy could be assessed in 31. In the overall efficacy assessment, the Padma Digestin treatment led to a statistically highly significant reduction of the respective most bothersome symptom scores regarding frequency, severity, and impairment of daily activities (p < 0.01). The treatment also led to significant improvements of the individual symptoms of postprandial fullness, nausea, localized and diffuse epigastric pain, stomach cramps, and lack of appetite. The onset of improvement was after a median of 7 days; time until disappearance of the symptoms was after a median of 22 days. The global efficacy and tolerability were rated as good or very good by the doctors and the patients in 84% and 78%, respectively. The PGWBI-S increased from 55 ± 19.5% to 70.5 ± 15.5%, which is nearly the normal value (73.5 ± 15.4%). As for safety, 11 patients reported a total of 17 adverse events (AE), 1 of which was serious but unrelated to the study medication. The AE were mild or moderate. The safety laboratory data showed no statistically significant or otherwise relevant changes.
CONCLUSIONS: The results show that the formula Padma Digestin has a high tolerability and efficacy in FD symptoms and positively influences psychological well-being and thus quality of life. It therefore represents a much needed extension of the therapeutic repertoire in FD.
Herbal drugs are being increasingly used in medical practice, often without appropriate scrutiny of their safety and efficacy. The medicinal product Padma 28 is a fixed combination with Tibetan origin, used in Europe since the 1960s for the symptomatic treatment of circulatory disorders, including those of peripheral arterial occlusive disease (PAOD). We have conducted an analysis of all available data on this herbal drug from published literature as well as from original data we obtained from contacting the authors of published papers, reports and the manufacturer. A total of 19 trials have reported on 2084 patients to date, 444 of whom were in six controlled clinical studies on PAOD. A meta-analysis of five trials showed Padma 28 to increase walking distance by >100m in 18.2% of the patients with verum, versus 2.1% with placebo (P<0.001; odds ratio: 10 [95% CI 3.03, 33.33]; RR: 0.12; number needed to treat=6.2). The safety profile appears to be favourable. Available evidence shows that Padma 28 provides significant relief from PAOD-related symptoms (i.e. walking distance), probably of the same order of magnitude as other employed medications. However, larger confirmatory RCTs are desirable.