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Romics I et al, 2011: A special terpene combination (Rowatinex®) improves stone clearance after extracorporeal shockwave lithotripsy in urolithiasis patients: results of a placebo-controlled randomised controlled trial

Romics I, Siller G, Kohnen R, Mavrogenis S, Varga J, Holman E
Department of Urology, Semmelweis University, Budapest, Hungary


Abstract

OBJECTIVE: To investigate the safety and efficacy of a special terpene combination in the treatment of patients with urolithiasis after extracorporeal shockwave lithotripsy (ESWL).

PATIENTS AND METHODS: 222 patients with clinically stable kidney or ureter stones of 0.3-2.0 cm undergoing complication-free ESWL were randomised to receive a special terpene combination (Rowatinex®; 3 × 2 capsules/day) or placebo. The study consisted of a 12-week active treatment phase and a 2-week follow-up phase. All patients had a physical examination, and diagnosis of kidney stones was made by X-ray, intravenous pyelogram or ultrasound at weeks 1, 4, 8 and 12 as well as after 2 weeks of follow-up. Stone-free status was defined as obviously successful expulsion of calculi/fragments, being without any stone.

RESULTS: In all, when compared to placebo, significantly more patients receiving the terpene combination treatment in the intent-to-treat (ITT) group [72 (67.9%) vs. 49 (50.0%); p = 0.0009] and the per-protocol (PP) group [69 (78.4%) vs. 48 (52.2%); p = 0.0004] were stone-free at the end of the study. Treatment with the terpene combination was also more effective when analysed with respect to the size of the treated stone. In addition, treatment with the terpene combination significantly reduced the median time to stone-free status from 85.0 to 56.0 days (p = 0.0061) and from 85.0 to 49.5 days (p = 0.0028) in the ITT and PP populations, respectively. Nine mild-to-moderate adverse events (AE; terpene combination group: 7 AE in 4 patients; placebo group: 2 AE in 2 patients) were assessed as drug-related.

CONCLUSIONS: Treatment with the terpene combination is well tolerated and safe. The terpene combination was found to be an efficacious treatment in eliminating calculi fragments generated by ESWL as compared to placebo. The pharmacodynamic properties of the terpene combination (antilithogenic, antibacterial, antiinflammatory, spasmolytic and analgesic effects), which have been also confirmed in preclinical studies, represent a valuable alternative to the different drugs used in the treatment of urolithiasis.

Copyright © 2010 S. Karger AG, Basel
Urol Int. 2011;86(1):102-9. doi: 10.1159/000320999. Epub 2010 Dec 7
PMID: 21135532 [PubMed - indexed for MEDLINE]

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Comments 1

Peter Alken on Tuesday, 08 November 2011 09:43

A well designed study with good results on a drug that “has a 50-year history in more than 60 countries all around the world.” It would have been nice to see the urinary volumes in both groups. If the ESWL results can be improved by 30%, than why is the compound not used more often?

Peter Alken

A well designed study with good results on a drug that “has a 50-year history in more than 60 countries all around the world.” It would have been nice to see the urinary volumes in both groups. If the ESWL results can be improved by 30%, than why is the compound not used more often? Peter Alken
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