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Meta-Analysis
. 2016 Jun 2;2016(6):CD010694.
doi: 10.1002/14651858.CD010694.pub2.

Sulodexide for treating venous leg ulcers

Bin Wu  1 , Jing Lu, Ming Yang, Ting Xu
Affiliations
Meta-Analysis

Sulodexide for treating venous leg ulcers

Bin Wu et al. Cochrane Database Syst Rev. .

Abstract

Background: Venous leg ulcers are common, chronic wounds caused by venous diseases, with a high recurrence rate and heavy disease burden. Compression therapy (bandages or stockings) is the first choice treatment for venous leg ulcers. However, when ulcers remain unhealed, medication can also be used with or without compression therapy. Sulodexide, a highly purified glycosaminoglycan (a naturally occurring molecule) has antithrombotic and profibrinolytic properties (it reduces the formation of blood clots) as well as anti-inflammatory effects. Sulodexide has been studied as a potential treatment for venous leg ulcers.

Objectives: To assess the efficacy and safety of sulodexide for treating venous leg ulcers.

Search methods: In July 2015 we searched: The Cochrane Wounds Specialised Register; The Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library); Ovid MEDLINE; Ovid MEDLINE (In-Process & Other Non-Indexed Citations); Ovid EMBASE; EBSCO CINAHL; Chinese Biomedical Literature Database (CBM); China National Knowledge Infrastructure Database (CNKI); Wan Fang and VIP. We also searched clinical trials registries to identify ongoing studies, as well as references listed in relevant publications. There were no restrictions based on date of publication, language or study setting.

Selection criteria: Randomised controlled trials (RCTs) involving people with a diagnosis of venous leg ulcers which compared sulodexide with placebo or any other drug therapy (such as pentoxifylline, flavonoids, aspirin), with or without compression therapy.

Data collection and analysis: We used standard Cochrane methodological procedures. The authors independently selected studies, extracted data and assessed risk of bias. We pooled data to present the risk ratio (RR) with 95% confidence interval (CI), or presented a narrative summary. We assessed overall evidence quality according to the GRADE approach.

Main results: We included four RCTs with a total of 463 participants (aged 42 years to 93 years); one report was only available as a published abstract.Meta-analysis of three RCTs suggests an increase in the proportion of ulcers completely healed with sulodexide as an adjuvant to local treatment (including wound care and compression therapy) compared with local treatment alone (rate of complete healing with sulodexide 49.4% compared with 29.8% with local treatment alone; RR 1.66; 95% CI 1.30 to 2.12). This evidence for sulodexide increasing the rate of complete healing is low quality due to risk of bias. It is unclear whether sulodexide is associated with any increase in adverse events (4.4% with sulodexide versus 3.1% with no sulodexide; RR 1.44; 95% CI 0.48 to 4.34). The evidence for adverse events is very low quality, downgraded twice for risk of bias and once for imprecision.

Authors' conclusions: Sulodexide may increase the healing of venous ulcers, when used alongside local wound care, however the evidence is only low quality and the conclusion is likely to be affected by new research. It is not clear whether sulodexide is associated with adverse effects. The standard dosage, route and frequency of sulodexide reported in the trials was unclear. Further rigorous, adequately powered RCTs examining the effects of sulodexide on healing, ulcer recurrence, quality of life and costs are necessary.

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Conflict of interest statement

Bin Wu: none known Jing Lu: none known Ming Yang: none known Ting Xu: none known.

Figures

1
1
PRISMA flow diagram of literature screening
2
2
Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.
3
3
Risk of bias summary: review authors' judgements about each risk of bias item for each included study.
1.1
1.1. Analysis
Comparison 1 Sulodexide + local treatment vs. local treatment, Outcome 1 Proportion of ulcers completely healed (overall).
1.2
1.2. Analysis
Comparison 1 Sulodexide + local treatment vs. local treatment, Outcome 2 Proportion of ulcers completely healed (sensitivity analysis).
1.3
1.3. Analysis
Comparison 1 Sulodexide + local treatment vs. local treatment, Outcome 3 Proportion of ulcers completely healed at 30 days.
1.4
1.4. Analysis
Comparison 1 Sulodexide + local treatment vs. local treatment, Outcome 4 Proportion of ulcers completely healed at 60 days.
1.5
1.5. Analysis
Comparison 1 Sulodexide + local treatment vs. local treatment, Outcome 5 Proportion of ulcers completely healed at 90 days.
1.6
1.6. Analysis
Comparison 1 Sulodexide + local treatment vs. local treatment, Outcome 6 Adverse effects.
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  • doi: 10.1002/14651858.CD010694

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References

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