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WithdrawnNCT03299387INSTANTUpdated Jun 6, 2019

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

A Phase 4 interventional study of Nitrofurantoin and Gentamicin in Urinary Tract Infections, sponsored by Mayo Clinic. Withdrawn. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-06-06.

Sponsored by Mayo Clinic · Phase 4, Interventional, and Treatment

Why this study was withdrawn
Study never recruited
Phase
Phase 4
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study 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.

Read the 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.

02

Conditions studied

  • Urinary Tract Infections

Keywords

  • urinary tract
  • infection
  • recurrent
  • women
03

In context

Urinary Tract Infections

803 studies on the registry are indexed under Urinary Tract Infections; 133 are open to participants now.

Browse Urinary Tract Infections studies →

Lead sponsor

Mayo Clinic is the lead sponsor of 3,269 studies on the registry; 672 are open to participants now.

Of its 452 completed or terminated interventional studies of FDA-regulated products, 321 (71%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

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

Exclusion criteria

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, >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.
  • patients being treated for or a history of actively treated malignancy within 5 years.
  • Patients with active systemic 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 .
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

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05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Active comparator
    Oral Nitrofurantoin

    Participants will randomized to oral nitrofurantoin

    Drug: Nitrofurantoin

  • Active comparator
    Intravesical Gentamicin

    Participants will be randomized to intravesical gentamicin

    Drug: Gentamicin

Interventions

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

    Also known as: Macrobid, Furadantin, Macrodantin

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

    Also known as: Gentak, Garamycin

06

What researchers measure

Primary outcomes

  1. Change in microbiologic effect of a chronic acute Urinary Tract Infection

    Microbiological 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

    Time frame: baseline, 7-10 days

  2. Change in symptomatic relief of a chronic acute Urinary Tract Infection

    Completion 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)

    Time frame: baseline, 7-10 days

Secondary outcomes

  1. To establish the clinical FTE needs for providing urgent intravesical treatments

    Nursing 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.

    Time frame: baseline, through stufy completion, an average of one year

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 6, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03299387
Lead sponsor
Mayo Clinic
Responsible party
Deborah J. Lightner (Principal Investigator, Mayo Clinic) — Principal investigator
First posted
Oct 3, 2017
Start date
Jun 28, 2017
Primary completion
Jul 5, 2018
Completion
Jul 5, 2018
Last update
Jun 6, 2019

Study contacts

Deborah Lightner, MD
principal investigator · Mayo Clinic
Audrey N Schuetz, MD
principal investigator · Mayo Clinic

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Jun 2019. You cannot join it, but the record below documents what was studied.

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Studies of the drugs tested here: Nitrofurantoin · Gentamicins

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