Treatment for radiation cystitis using pentosan polysulfate sodium
Official title: A Randomized, Controlled, Phase II/III Trial to Evaluate the Efficacy and Safety of U101 Oral Capsules in Radiation-induced Cystitis
Run by National Taiwan University Hospital · NCT05245591 · Data updated 2026-11-12
This study is testing if a medication called pentosan polysulfate sodium can help people with radiation cystitis feel better after pelvic radiation therapy.
Quick facts
| Phase | Phase2; Phase3 |
|---|---|
| Study type | Interventional |
| Ages | 20 Years and up |
| Sex | All |
| Enrollment | 72 (estimated) |
| Sponsor | National Taiwan University Hospital Academic / other |
| Drugs / interventions | radiation |
| Locations | 1 site (Taipei) |
| Status | Recruiting |
| Started | April 29, 2022 |
| Main results expected | November 1, 2024 |
| Study ends | November 1, 2029 |
| Registry record updated | May 4, 2022 |
| Trial ID | NCT05245591 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults aged 20 and older who have experienced radiation cystitis at least 6 months after receiving pelvic radiation therapy.
✕Probably not a fit
Patients with significant liver, kidney, or coagulation abnormalities, as well as those who are pregnant or breastfeeding, may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study evaluates the efficacy and safety of pentosan polysulfate sodium (PPS) compared to a placebo in patients suffering from radiation cystitis following pelvic radiation therapy. It is a randomized controlled trial involving approximately 72 participants who will receive oral PPS for 16 weeks, with a dosage of 100 mg three times a day for the first 8 weeks, followed by 100 mg twice daily for the next 8 weeks. The trial aims to determine whether PPS can alleviate symptoms associated with radiation cystitis.
Why it matters
Potential benefit: If successful, this treatment could significantly improve the quality of life for patients suffering from radiation cystitis.
How similar studies have gone: While there have been studies on treatments for radiation cystitis, the specific use of pentosan polysulfate sodium in this context is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form and in the study protocol. 2. Patients must be ≥20 years of age 3. Patients must have received definitive radiation therapy for cancer in pelvic area. 4. Time from the end of radiation therapy to radiation cystitis must be longer than 6 months. 5. Radiation cystitis with lower urinary tract symptoms or hematuria. Exclusion Criteria: 1. Abnormal liver function with indication of AST, ALT, or total bilirubin ≥ 1.5 times higher than normal 2. Abnormal renal function with serum creatinine ≥ 1.5 times higher than normal 3. Abnormal coagulation profile with PT/INR higher than normal 4. Thrombocytopenia with platelet counts \< 100,000/μL 5. Pregnant or breastfeeding, expecting to pregnancy, or positive for pregnancy test 6. Patients who have systemic inflammatory symptoms during screening period (ie, fever up to 38℃ or WBC counts \>12,000/μL) 7. Patients with known urinary tract infection within 6 months of randomization. 8. Any previous intravesical instillation within 6 months of randomization (ie, hyaluronic acid instillation) 9. Any previous hyperbaric oxygen therapy within 6 months of randomization 10. Any previous treatment with pentosan polysulfate sodium within 6 months of randomization 11. Has history of thrombocytopenia, hemophilia or bladder cancer 12. Has known history of Human Immunodeficiency Virus (HIV) or organ transplantation 13. Has known history of drug allergy to pentosan polysulfate sodium 14. Has hematuria caused by clinically active urolithiasis or urothelial carcinoma
Where it's running
-
National Taiwan University Hospital
Taipei, Taiwan Recruiting
Study contacts
- Principal investigator: Chao-Yuan Huang, MD, PhD — National Taiwan University Hospital
- Study coordinator: Chi-Shin Tseng, MD
- Email: clifford1987tcs@gmail.com
- Phone: +886223123456
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Hyperbaric oxygen for chronic radiation cystitis
This project will try hyperbaric oxygen therapy in adults with moderate to severe radiation cystitis to see if symptoms improve and urine inflammatory markers change.
-
Gut microbiome in gynecologic cancer patients with pelvic toxicity
This study looks at whether gut bacteria profiles relate to pelvic toxicity after cancer treatment and how rectal ozone therapy might affect the gut microbiome and symptoms in women with gynecologic tumors.
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Effects of anticoagulant interruption and left atrial occlusion in patients with bleeding from radiation cystitis and atrial fibrillation
This study looks at patients who have bleeding from radiation cystitis while on blood thinners for atrial fibrillation to see how these factors affect their treatment and outcomes.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.