for females ages 18 years and up (full criteria)
at La Jolla, California and other locations
study started
estimated completion
Principal Investigator
by Marianna Alperin, M.D., M.S.
Headshot of Marianna Alperin
Marianna Alperin



Urinary tract infection (UTI) is a common problem after surgery for pelvic organ prolapse and stress urinary incontinence. This prospective, randomized, single-masked (subject), two-parallel armed study aims to determine the effect of a single postoperative intravesical instillation of 80 mg of gentamicin sulfate in 50 mL of saline versus usual care on the proportion of women treated for UTI within 6 weeks following surgery for pelvic organ prolapse (POP) or stress urinary incontinence (SUI).


Postoperative Urinary Tract Infection Pelvic Organ Prolapse Stress Urinary Incontinence gentamicin sulfate pelvic organ prolapse surgery midurethral sling bladder instillation Infections Communicable Diseases Urinary Tract Infections Urinary Incontinence Urinary Incontinence, Stress Prolapse Gentamicins Catheter clamping only


You can join if…

Open to females ages 18 years and up

  • Adult women undergoing pelvic organ prolapse surgery and/or stress urinary incontinence surgery with surgical plan for at least 1 cystoscopy and will leave the operating room with a standard-of-care transurethral catheter.
  • Negative urine culture within 4 weeks or completion of UTI treatment ≥48 hours prior to surgery

You CAN'T join if...

  • History of allergic reaction or anaphylaxis to gentamicin sulfate or to sodium metabisulfite (one of the preservatives in the gentamicin sulfate product)
  • Abnormal intraoperative urinary tract finding (e.g. bladder mass, stone, or fistula)
  • Intraoperative urinary tract injury
  • Suppressive recurrent UTI treatment
  • Chronic indwelling catheter/self-catheterization
  • Unable to provide informed consent
  • Severe renal impairment - glomerular filtration rate of less than 30 mL / minute
  • Current pregnancy
  • Currently incarcerated


  • UC San Diego Health accepting new patients
    La Jolla California 92037 United States
  • Kaiser Permanente San Diego accepting new patients
    San Diego California 92123 United States

Lead Scientist at UCSD

  • Marianna Alperin, M.D., M.S.
    Associate Professor, Reproductive Medicine. Authored (or co-authored) 25 research publications. Research interests: Women's Health · Pelvic Floor Disorders · Childbirth Injury · Biological Senescence.


accepting new patients
Start Date
Completion Date
Kaiser Permanente
Phase 2
Study Type
Last Updated