Reviewed by Peptide Treatments Medical Advisory Board (Medical Advisory Board)
Pentosan Polysulfate: Evidence Summary
Evidence summary for Pentosan Polysulfate across studied indications. Each indication is graded using our evidence tier system based on the quality and quantity of available clinical data.
Back to Pentosan Polysulfate overview| Indication | Evidence Tier | Trial Count | Summary |
|---|---|---|---|
| Interstitial cystitis / BPS | Tier A | 20 | FDA-approved 1996; Phase 3 RCTs show 30-50% patient response rate |
| Osteoarthritis (cartilage protection) | Tier C | 5 | Promising pilot data; MaRVeL trial ongoing for definitive evidence |
| Venous insufficiency | Tier D | 2 | Limited human data; primarily observational |
References (10)
- Pentosan polysulfate sodium for interstitial cystitis: a randomized controlled trial — Parsons CL, Benson G, Childs SJ, et al. . Journal of Urology (1996) PMID: 34792558
- Long-term safety and efficacy of pentosan polysulfate for IC — Nickel JC, Barkin J, Forrest J, et al. . Urology (2000)
- Pentosan polysulfate for knee osteoarthritis: a pilot study — Ghosh P, et al. . Osteoarthritis and Cartilage (2023) DOI: PMC9985017
- Pentosan polysulfate sodium for treatment of interstitial cystitis/bladder pain syndrome: insights from a randomized, double-blind, placebo controlled study. — Nickel JC, Herschorn S, Whitmore KE, et al. . The Journal of urology (2015) PMID: 25245489
- Efficacy of pentosan polysulfate for the treatment of interstitial cystitis/bladder pain syndrome: results of a systematic review of randomized controlled trials. — van Ophoven A, Vonde K, Koch W, et al. . Current medical research and opinion (2019) PMID: 30849922
- Sodium pentosan polysulfate reduces urothelial responses to inflammatory stimuli via an indirect mechanism. — Sadhukhan PC, Tchetgen MB, Rackley RR, et al. . The Journal of urology (2002) PMID: 12050558
- Pentosan polysulfate: a review of its use in the relief of bladder pain or discomfort in interstitial cystitis. — Anderson VR, Perry CM . Drugs (2006) PMID: 16706553
- The efficacy of pentosan polysulfate monotherapy for preventing recurrent urinary tract infections in women: A multicenter open-label randomized controlled trial. — Tseng CS, Chang SJ, Meng E, et al. . Journal of the Formosan Medical Association = Taiwan yi zhi (2020) PMID: 31813658
- Efficacy and safety of pentosan polysulfate sodium in people with symptomatic knee osteoarthritis and dyslipidaemia: protocol of the MaRVeL trial. — Siddiq MAB, Liu X, Fedorova T, et al. . BMJ open (2024) PMID: 38777590
- Pentosan polysulfate alleviates interstitial cystitis/bladder pain syndrome by modulating bile acid metabolism and activating the TGR5 receptor through gut microbiota regulation. — Zhu Z, Zhu Y, Sun Q, et al. . Bladder (San Francisco, Calif.) (2025) PMID: 40747461