ClinicalTrials.gg
CompletedNCT02277171Updated Dec 24, 2015

Evaluation of Safety and Tolerability of Nitric Oxide Impregnated Urinary Catheters

A Phase 1 interventional study of Nitric Oxide impregnated catheter in Urinary Tract Infection and Bacteriuria, sponsored by Enox Israel Ltd. Completed. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2015-12-24.

Primary conditionBacteriuriaRegistry: Urinary Tract InfectionsReclassifiedWhy we changed it
Registry
Urinary Tract Infections — the first condition term the registry derived for this study.
ClinicalTrials.gg
Bacteriuria
Why
  1. The study's listed conditions name Bacteriuria, a narrower term within Urinary Tract Infections.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Enox Israel Ltd · Phase 1, Interventional, and Prevention

Phase
Phase 1
Study type
Interventional
Enrollment
15
Allocation
Not applicable
Ages
18 Years to 80 Years
Sex
All
01

Study summary

According to the World Health Organization, hundreds of millions of patients are affected by health-care associated infections worldwide each year, resulting in prolonged hospital stays, long-term disabilities, deaths, and financial losses for health systems. The most common hospital-acquired infection is Urinary Tract Infection (UTI), accounting for almost 40% of all nosocomial infections. Most hospital-acquired UTIs are associated with catheterization. In fact, urinary catheter-related bacteriuria is the most common health care associated infection worldwide. Catheter-associated UTI (CAUTI) develops following adhesion of planktonic bacteria to the surface of the catheter and colonization, creating a persistent environment called a biofilm. The nature of biofilm structure together with the physiological attributes of biofilm organisms confers an inherent resistance to various antimicrobial agents such as antibiotics, disinfectants or germicides, augmenting the potential of these pathogens to cause infections in catheterized patients.

Nitric oxide (NO) is a naturally-produced gas molecule with broad-spectrum antimicrobial activity. NO is used in the clinics to treat pulmonary hypertension in neonates and adults. Studies have shown that low-dose NO is associated with prevention of biofilm formation, biofilm dispersal and elimination of bacteria. It is suggested that NO prevents bacteria attachment to catheter surfaces and inhibits biofilm formation in a mechanism involving reduction and modification of proteins that mediate cell-substrate and cell-cell interactions.

The investigators team, using a proprietary technology impregnate urinary catheters with NO (i.e. NO-impregnated catheters). These catheters release low concentration of NO following exposure to urine over a 14-day period. In vitro studies showed that NO-impregnated catheters prevent bacterial colonization and biofilm formation of Escherichia coli on exterior and luminal surfaces of the catheters. In addition, NO released from these catheters is able to eradicate up to 4log colony forming unit/ml of bacteria within the surrounding media. Moreover, NO-impregnated catheters exhibit superior performance compared to silver-coated catheters, and similar anti-infective properties compared to antibiotic-coated catheters.

Primary objectives: To assess the safety and tolerability of NO-impregnated catheters in patients older than 18 years old undergoing radical prostatectomy and catheterized for 7-14 days.

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Conditions studied

  • Urinary Tract Infection
  • Bacteriuria

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03

In context

Bacteriuria Reclassified

51 studies on the registry are indexed under Bacteriuria; 3 are open to participants now.

This study's enrollment of 15 is below the median of 100 across 37 interventional studies indexed under Bacteriuria.

Browse Bacteriuria studies →

Lead sponsor

This is the only study on the registry with Enox Israel Ltd as lead sponsor.

Compared within Bacteriuria, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Urinary Tract Infections. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
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

  1. Patients before radical prostatectomy at the Department of Urology in Beilinson Medical Center, which will be catheterized for 7-14 days.
  2. Age: ≥ 18 years.
  3. Patients with a of more than 12 months.
  4. The investigator has completed a medical history and a physical examination to assure that the patients meets all study enrollment criteria.
  5. The patient is willing and able to read, understand and sign the study specific form.

Exclusion criteria

Exclusion Criteria:

  1. A urinary culture demonstrating UTI before surgery.
  2. A patient with an indwelling urinary catheter prior to surgery.
  3. Expected of less than 12 months.
  4. Concurrent illness, disability or geographical residence that would hamper study participation.
  5. Patients with underlying diseases such as heart disease, lung disease, skin disease or infection involving the penis, scrotum and groin, patients (transplant recipients, carriers) or any other disease or condition that according to the physician opinion will influence the study results.
  6. Patients with known urethral stricture.
  7. Patients with recurrent UTIs.
  8. Current participation in another clinical investigation of a medical device or a drug or has participated in such a study within 30 days prior to study enrollment.
Terms in these criteria, in plain language(4)

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.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

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.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

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.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 1
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
15 participants (actual)

Study arms

  • Experimental
    Nitric oxide impregnated catheter

    Device: Nitric Oxide impregnated catheter

Interventions

  • DeviceNitric Oxide impregnated catheter

    Patients undergoing radical prostatectomy will be catheterized for 7-14 days with Nitric Oxide impregnated Foley catheters

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What researchers measure

Primary outcomes

  1. Number of participants with adverse events associated with Nitric Oxide impregnated catheters

    Time frame: 30-45 days

  2. Proportion of patients (%) who prematurely discontinued the study due to adverse events or severe adverse events associated with Nitric oxide impregnated catheters

    Time frame: 30-45 days

Secondary outcomes

  1. Measuring biofilm forming bacteria on the surface of Nitric Oxide impregnated and non impregnated Foley catheters after indwelling for 7 to 14 days

    Time frame: 7-14 days

  2. Measuring bacteriuria (by urine culture) for Nitric Oxide impregnated and non impregnated Foley catheters prior to insertion, 1 day after insertion, every day during hospitalization, on catheter removal day, and 30 days after catheterization

    Time frame: 30-45 days

  3. Measuring number of urinary tract infection (UTI) events following catheterization with Nitric Oxide impregnated and non impregnated Foley catheters

    Time frame: 30-45 days

  4. Proportion of patients (%) who prematurely discontinued the study for any reason

    Time frame: 30-45 days

07

Study locations

No study locations are listed for this record.

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References and documents

Publications

  • Regev-Shoshani G, Ko M, Miller C, Av-Gay Y. Slow release of nitric oxide from charged catheters and its effect on biofilm formation by Escherichia coli. Antimicrob Agents Chemother. 2010 Jan;54(1):273-9. doi: 10.1128/AAC.00511-09. Epub 2009 Nov 2. PubMed 19884372 ↗
  • Regev-Shoshani G, Ko M, Crowe A, Av-Gay Y. Comparative efficacy of commercially available and emerging antimicrobial urinary catheters against bacteriuria caused by E. coli in vitro. Urology. 2011 Aug;78(2):334-9. doi: 10.1016/j.urology.2011.02.063. PubMed 21820571 ↗
  • Barraud N, Storey MV, Moore ZP, Webb JS, Rice SA, Kjelleberg S. Nitric oxide-mediated dispersal in single- and multi-species biofilms of clinically and industrially relevant microorganisms. Microb Biotechnol. 2009 May;2(3):370-8. doi: 10.1111/j.1751-7915.2009.00098.x. Epub 2009 Mar 13. PubMed 21261931 ↗
  • Charville GW, Hetrick EM, Geer CB, Schoenfisch MH. Reduced bacterial adhesion to fibrinogen-coated substrates via nitric oxide release. Biomaterials. 2008 Oct;29(30):4039-44. doi: 10.1016/j.biomaterials.2008.07.005. Epub 2008 Jul 26. PubMed 18657857 ↗
  • Ramritu P, Halton K, Collignon P, Cook D, Fraenkel D, Battistutta D, Whitby M, Graves N. A systematic review comparing the relative effectiveness of antimicrobial-coated catheters in intensive care units. Am J Infect Control. 2008 Mar;36(2):104-17. doi: 10.1016/j.ajic.2007.02.012. PubMed 18313512 ↗
  • Siddiq DM, Darouiche RO. New strategies to prevent catheter-associated urinary tract infections. Nat Rev Urol. 2012 Apr 17;9(6):305-14. doi: 10.1038/nrurol.2012.68. PubMed 22508462 ↗
  • Parida S, Mishra SK. Urinary tract infections in the critical care unit: A brief review. Indian J Crit Care Med. 2013 Nov;17(6):370-4. doi: 10.4103/0972-5229.123451. PubMed 24501490 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 24, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02277171
Lead sponsor
Enox Israel Ltd
Responsible party
Sponsor
First posted
Oct 28, 2014
Start date
Dec 2014
Primary completion
Jun 2015
Completion
Sep 2015
Last update
Dec 24, 2015

Study contacts

David Greenberg, prof.
study chair · ENOX

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2015. You cannot join it, but the record below documents what was studied.

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