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A Multicenter, Randomized, Placebo-controlled, Phase II Trial of Vitamin D3 for Reducing Recurrence of Recurrent Lower Urinary Tract Infections

Phase II Clinical Trial of Vitamin D3 for Reducing Recurrence of Recurrent Lower Urinary Tract Infections: a Multicenter, Randomized, Placebo-controlled Trial

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2100046520
Enrollment
Unknown
Registered
2021-05-19
Start date
2021-04-15
Completion date
Unknown
Last updated
2022-01-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Recurrent urinary tract infections

Interventions

Treatment group A:2000IU per tablet, 2 tablet per time, qd, oral administration with the first meal, continuous use for 48 weeks
Treatment group B:2000IU per tablet, 1 tablet per time, qd, oral administration with the first meal, continuous use for 48 weeks
placebo group:0 IU per tablet, 1 tablet per time, qd, oral administration with the first meal, continuous use for 48 weeks

Sponsors

Ruijin Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion 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: (1) The middle urinary bacterial culture is less than 10^5 CFU/mL (accept the examination results after the last improvement); (2) 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 /uL; 4. Signed written informed consent; 5. Be able to follow the research protocol.

Exclusion criteria

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 ULN, aspartate aminotransferase or alanine aminotransferase >2 ULN; 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.

Design outcomes

Primary

MeasureTime frame
Number of recurrent lower urinary tract infections within 48 weeks;

Secondary

MeasureTime frame
Recurrence rate of lower urinary tract infection within 48 weeks;The number of days from the beginning of the study to the first recurrence of lower urinary tract infection, and the number of days from each recurrence to the next recurrence;;Ratio of the cumulative duration of relapse-free subjects during the study period to the total duration of treatment;

Countries

China

Contacts

Public ContactXiaorui Wang

Zensun Sci. & Tech. Co., Ltd.

wangxiaorui@zensun.com+86 21 50802627

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026