NCT07184827

Brief Summary

The goal of this clinical trial is to learn if drug U101 works to prevent recurrent urinary tract infection (rUTI) in women (≥ 20 and \< 76 years old) with a medical history. It will also investigate the safety and the impact on the Quality of Life improvement of drug U101. The main questions it aims to answer are:

  • Does the drug prevent or decrease the recurrence of urinary tract infection (UTI) during the 24-week treatment?
  • Will the Quality of Life be improved during the 24-week treatment?
  • What medical problems do participants have when taking drug U101? Researchers will compare drug U101 to a placebo (a look-alike substance that contains no drug) to see if drug U101 works to prevent rUTI. Participants will:
  • Orally take drug U101 or placebo every day for 24 weeks in the main study, three times per day (TID) for 8 weeks and twice per day (BID) for 16 weeks.
  • Visit the site once every 4 weeks for checkups and tests during the main study.
  • be asked to enroll in extensional study (the open-label extension (OLE) with drug U101 treatment or the Safety Follow-Up Visits with no investigational product treatment) for 24 weeks after they complete the 24-week main study.
  • Visit the site when the suspected UTI occurred during the main study or the extension study.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
348

participants targeted

Target at P50-P75 for phase_3

Timeline
27mo left

Started Oct 2020

Longer than P75 for phase_3

Geographic Reach
1 country

13 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress71%
Oct 2020Jul 2028

Study Start

First participant enrolled

October 14, 2020

Completed
4.8 years until next milestone

First Submitted

Initial submission to the registry

August 5, 2025

Completed
2 months until next milestone

First Posted

Study publicly available on registry

September 22, 2025

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2028

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2028

Last Updated

September 22, 2025

Status Verified

September 1, 2025

Enrollment Period

7.7 years

First QC Date

August 5, 2025

Last Update Submit

September 14, 2025

Conditions

Keywords

recurrent urinary tract infectionsrecurrent urinary tract infections in womenrUTIUTIrUTIsUTIspentosan polysulfate sodiumPPSGlycosaminoglycanGlycosaminoglycansGAGGAGs

Outcome Measures

Primary Outcomes (1)

  • Percentage of subjects without UTI recurrence during the 24-week main study period

    To demonstrate the efficacy of U101 in preventing recurrent urinary tract infections (rUTIs) in women

    The primary analysis will be performed at the end of the 24-week main study

Secondary Outcomes (33)

  • Time to the first UTI episode during the main study period

    This analysis will be performed at the end of the 24-week main study

  • Percentage of subjects with ≤ 1 UTI episode during the main study period

    This analysis will be performed at the end of the 24-week main study

  • Average number of time-normalized UTI episodes per 4 weeks during the main study period

    This analysis will be performed at the end of the 24-week main study

  • Quality of Life assessment: Daily Activities Interference during the main study period

    This analysis will be performed at the end of the 24-week main study

  • Quality of Life assessment: Pain Intensity during the main study period

    This analysis will be performed at the end of the 24-week main study

  • +28 more secondary outcomes

Study Arms (2)

Placebo

PLACEBO COMPARATOR

One capsule of Placebo will be administered orally three times per day (TID) for 8 weeks followed by one capsule of placebo twice per day (BID) for 16 weeks.

Other: Placebo

U101

EXPERIMENTAL

One capsule (100 mg) of U101 will be administered orally three times per day (TID) for 8 weeks followed by one capsule of U101 twice per day (BID) for 16 weeks.

Drug: U101

Interventions

U101DRUG

One capsule (100 mg) of U101 will be administered orally three times per day (TID) for 8 weeks followed by one capsule of U101 twice per day (BID) for 16 weeks.

Also known as: pentosan polysulfate sodium (PPS)
U101
PlaceboOTHER

One capsule of Placebo will be administered orally three times per day (TID) for 8 weeks followed by one capsule of placebo twice per day (BID) for 16 weeks.

Placebo

Eligibility Criteria

Age20 Years - 75 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Provide a signed informed consent form.
  • Non-pregnant, non-nursing females ≥ 20 and \< 76 years old.
  • Having a history of ≥ 2 UTI events during the preceding 6 months or ≥ 3 UTI events during the preceding 12 months (including any UTI event that occurs on the date of ICF signing). At least one of the previous UTI events must have microbiologic evidence (e.g., per the investigator's judgment based on urine culture results).
  • The last urine culture (including those conducted for suspected UTI event or retest) before the randomization has to be negative.
  • Having a negative urinalysis result and no symptoms suggestive of a UTI on the day of randomization.

You may not qualify if:

  • Females who are pregnant, nursing, have a desire for pregnancy or have a positive pregnancy test at screening.
  • Women of childbearing potential who are unwilling or unable to use an acceptable contraceptive method to avoid pregnancy for the entire study period (use of spermicide is prohibited). Women of childbearing potential are defined as premenopausal females capable of becoming pregnant.
  • Serum aspartate transaminase (AST), serum alanine transaminase (ALT) and serum total bilirubin \> 1.5 x upper limit of normal (ULN).
  • Serum creatinine \> 1.5 x ULN.
  • Prothrombin time (PT) or INR \> 1.2 x ULN.
  • Platelet counts \< 100,000/μL.
  • Serum vitamin D level \< 11 ng/mL.
  • HbA1c \> 8.0%.
  • Positive test for hepatitis B (both HBsAg and HBeAg), hepatitis C (anti-HCV antibody) or HIV (anti-HIV antibody).
  • Symptoms suggestive of a systemic inflammatory response (fever \> 38℃ or WBC count \> 12,000) at the screening.
  • A major functional or anatomical abnormality of the urogenital tract (e.g., renal cell carcinoma, outlet obstruction, etc.).
  • Diagnosis of pelvic organ prolapse ≥ grade 2 (according to pelvic organ prolapse quantification POP-Q classification) without any treatment within 6 months of the screening visit.
  • Diagnosis of complicated UTIs within 6 months of the screening visit.
  • Residual urine volume \> 100 mL within a month of the screening visit.
  • History of interstitial cystitis, pelvic inflammatory disease, or chronic pelvic pain syndrome.
  • +14 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (13)

Chang Gung Memorial Hospital, Kaohsiung Branch

Kaohsiung City, Taiwan

RECRUITING

Kaohsiung Medical University Chung-Ho Memorial Hospital

Kaohsiung City, Taiwan

ACTIVE NOT RECRUITING

Taipei Tzu Chi Hospital

New Taipei City, Taiwan

RECRUITING

China Medical University Hospital

Taichung, Taiwan

RECRUITING

Chung Shan Medical University Hospital

Taichung, Taiwan

RECRUITING

Taichung Veterans General Hospital

Taichung, Taiwan

RECRUITING

National Cheng Kung University Hospital

Tainan, Taiwan

RECRUITING

Chang Gung Memorial Hospital, Taipei Branch

Taipei, Taiwan

RECRUITING

National Taiwan University Hospital

Taipei, Taiwan

RECRUITING

Taipei Medical University Hospital

Taipei, Taiwan

RECRUITING

Taipei Veterans General Hospital

Taipei, Taiwan

RECRUITING

Tri-Service General Hospital (TSGH)

Taipei, Taiwan

RECRUITING

Chang Gung Memorial Hospital, Linkuo Branch

Taoyuan District, Taiwan

RECRUITING

MeSH Terms

Conditions

Urinary Tract Infections

Interventions

Pentosan Sulfuric Polyester

Condition Hierarchy (Ancestors)

InfectionsUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital Diseases

Intervention Hierarchy (Ancestors)

Sulfuric AcidsSulfur AcidsSulfur CompoundsOrganic ChemicalsPolysaccharidesCarbohydrates

Study Officials

  • En Meng, MD

    Tri-Service General Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Emily Ma Clinical Research Manager

CONTACT

Principal Investigator

CONTACT

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 5, 2025

First Posted

September 22, 2025

Study Start

October 14, 2020

Primary Completion (Estimated)

June 30, 2028

Study Completion (Estimated)

July 31, 2028

Last Updated

September 22, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share

Locations