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INtravesical Antimicrobial Agents v STANDard Oral Antibiotics for the Treatment of Acute UTI in Women With rUTI

INtravesical Antimicrobial Agents Versus STANDard Oral Antibiotics for the Treatment of Acute Urinary Tract Infection in Women With Recurrent Urinary Tract Infection (INSTANT Study)

Status
Withdrawn
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03299387
Acronym
INSTANT
Enrollment
0
Registered
2017-10-03
Start date
2017-06-28
Completion date
2018-07-05
Last updated
2019-06-06

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

Conditions

Urinary Tract Infections

Keywords

urinary tract, infection, recurrent, women

Brief summary

Women have problems with oral antibiotics, including vagina and bowel infections. Also, bacteria causing urinary infections are becoming more resistant to oral antibiotis. Placement of antibiotic directly into the bladder does not cause these problems and are at doses that are may be able to stop bacteria from being resistant to antibiotics.

Detailed description

Each participant once enrolled returns with an active Urinary Tract Infection (UTI), confirmed by urine void. Participants will complete an UTI questionnaire, and if consistent with a simple non-febrile UTI will be randomized to one of two arms: oral nitrofurantoin treatment for 7 days, or intravesical gentamicin instillation once a day for three days. Patients will be followed for symptom relief with a repeat voided urine in 7 to 10 days, and with a repeated questionnaire for symptom relief.

Interventions

DRUGNitrofurantoin

Participants will receive oral Nitrofurantoin 100 mg twice daily for 7 days

DRUGGentamicin

Participants will receive intravesical via catheter Gentamicin solution 25 mg in 50cc for 3 days

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Ability to understand study procedures and to comply with them for the entire length of the study.

Exclusion criteria

* Patients who report that they are pregnant. * Patients with a positive urine pregnancy test * Patients with a history of renal transplantation. * Patients with bladder augmentation procedures using bowel. * Patients with poorly controlled Type II diabetes, Hgb A1C \>6.5% * Patients with spinal cord injury, ASIA Impairment Scale of C or higher. * Patients with pelvic surgery within 6 months. * Patients with urologic procedure within 6 months. * Patients with a history of reconstructive urologic surgery, such as reflux, congenital abnormality. * Immunocompromised patients being treated for malignancy or a history of actively treated malignancy within 5 years. * Patients with active systemic autoimmune disease. * Patients on systemic immunosuppression. * Use of antibiotic prophylaxis within 6 months * Use of antibiotics within 10 days of active infection * Allergy/sensitivity to gentamicin or nitrofurantoin. * Current drug or alcohol use or dependence that, in the opinion of the site investigator, would interfere with adherence to study requirements. * Inability or unwillingness of individual to give written informed consent.

Design outcomes

Primary

MeasureTime frameDescription
Change in microbiologic effect of a chronic acute Urinary Tract Infectionbaseline, 7-10 daysMicrobiological culture growth of susceptible organisms obtained on day 0, compared with voided urine culture as no growth in 24-48 hours obtained at 7-10 days
Change in symptomatic relief of a chronic acute Urinary Tract Infectionbaseline, 7-10 daysCompletion of a Symptom Urinary Tract Questionnaire. Tracking the symptoms in the past 24 hours. Indicating how severe and how bothersome they were. Severe ranging from 0 (Did not have) to 3 (Severe). Bothersome ranging from 0 (Not at all) to 3 (A lot)

Secondary

MeasureTime frameDescription
To establish the clinical FTE needs for providing urgent intravesical treatmentsbaseline, through stufy completion, an average of one yearNursing needs to provide intravesical treatments of acute Urinary Tract Infections (UTI) in women with chronic recurrent UTIs. Measured in amount of participants and FTE requirement for nursing staff.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026