Phase II Clinical Trial of Vitamin D3 for Reducing Recurrence of Recurrent Lower Urinary Tract Infections
Launched by ZENSUN SCI. & TECH. CO., LTD. · Apr 23, 2021
Trial Information
Current as of June 26, 2025
Recruiting
Keywords
ClinConnect Summary
This clinical trial is studying whether vitamin D3 can help reduce the number of times people get recurrent urinary tract infections (rUTIs). Researchers want to find out the best dose of vitamin D3, how well it works, and if it is safe for patients. The trial is currently looking for participants aged 18 to 75 who have had at least three urinary tract infections in the last year or two in the last six months. To join, participants must have had their last infection treated and be free of symptoms.
If you decide to participate, you will receive vitamin D3 and be monitored for its effects on your urinary tract infections. It’s important to know that certain health conditions may prevent you from joining, such as serious heart or kidney problems, diabetes that isn't well controlled, or if you're currently pregnant or breastfeeding. If you meet the eligibility criteria, this study could be a valuable opportunity to help improve treatment options for urinary tract infections.
Gender
ALL
Eligibility criteria
- Inclusion Criteria:
- • 1. Male or female aged 18 to 75 years, including 18 and 75 years;
- • 2. at least 3 episodes of lower urinary tract infection in the last 12 months or at least 2 episodes of lower urinary tract infection in the last 6 months;
- • 3. The symptoms of the latest recurrence of lower urinary tract infection have disappeared after treatment, and the treatment dosage of antibiotics has been stopped, and at least one of the following two conditions has been met:A) The middle urinary bacterial culture is less than 10\^5 CFU/mL (accept the examination results after the last improvement);B) Urine white blood cell count is less than 5 /HP, and if it can be measured in routine urine examination, it should be less than 25 /μL;
- • 4. Signed written informed consent;
- • 5. Be able to follow the research protocol.
- Exclusion Criteria:
- • 1. Complicated with cardio-cerebrovascular and hematopoietic system and other serious primary diseases;
- • 2. Poor glycemic control (HbA1c \>7.5%) with diabetes;
- • 3. Patients with genital tract malformation or acute genital tract infection and genital tract tumor;
- • 4. Patients with urinary system tuberculosis and acute pyelonephritis;
- • 5. Patients with cysto-ureteral reflux or urethral reflux;
- • 6. Patients with polycystic kidney disease, neurogenic bladder, indwelling urethral catheterization, urinary tract stones, tumors or fibrous degeneration, etc., determined by the investigator as urinary tract obstruction;
- • 7. Glomerular filtration rate (MDRD formula).20 mL/min/1.73m2, dialysis or kidney transplantation patients;
- • 8. Chronic liver disease may have potential influence on liver function (bilirubin \>;1.5 times upper limit of normal value, aspartate aminotransferase or alanine aminotransferase \>2 times the upper limit of normal);
- • 9. Patients with vitamin D3 contraindications, such as hypercalcemia, hypervitaminism, hyperphosphatemia with renal rickets, etc.;
- • 10. Patients with diseases that affect the absorption of vitamin D3 in the small intestine, such as Crohn's disease;
- • 11. receiving immunosuppressive agents or GT;10 mg/d glucocorticoids;
- • 12. had received any other investigational drug therapy or participated in another interventional clinical trial within 30 days prior to screening;
- • 13. Have a history of alcohol or drug abuse or suffer from mental illness;
- • 14. Women of child-bearing age who have planned to become pregnant within 2 years (women of child-bearing age are defined as all women with physical ability to become pregnant), or women who are pregnant or lactating;
- • 15. Circumstances in which subjects are judged by the investigator to be unsuitable for inclusion.
About Zensun Sci. & Tech. Co., Ltd.
Zensun Science & Technology Co., Ltd. is a leading biopharmaceutical company focused on the research, development, and commercialization of innovative therapies for critical medical conditions. With a commitment to advancing healthcare through cutting-edge science and technology, Zensun specializes in regenerative medicine and novel biopharmaceuticals, aiming to improve patient outcomes and quality of life. The company leverages its expertise in clinical research and development to drive the discovery of transformative treatments, actively collaborating with healthcare professionals and institutions to bring safe and effective solutions to market.
Contacts
Jennifer Cobb
Immunology at National Institute of Allergy and Infectious Diseases (NIAID)
Locations
Shanghai, Shanghai, China
Chengdu, Sichuan, China
Xi'an, Shaanxi, China
Shanghai, Shanghai, China
Shanghai, Shanghai, China
Shanghai, Shanghai, China
Hangzhou, Zhejiang, China
Patients applied
Trial Officials
Xian He, MD
Principal Investigator
Zhejiang Provincial People's Hospital
Timeline
First submit
Trial launched
Trial updated
Estimated completion
Not reported
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