Heparin Intraoperative Instillation for Lower Urinary Tract Symptoms After Benign Hysterectomy

Lower Urinary Tract Symptoms Clinical Trial

— HILUTS  

Official title:

Heparin Intraoperative Instillation for Lower Urinary Tract Symptoms After Benign Hysterectomy: A Randomized Controlled Trial

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03633994
• Other study ID #: TCH #18-12
• Status: Recruiting
• Phase: Phase 2
• Start date: August 20, 2018
• Est. completion date: March 1, 2020

Study information

• Verified date: October 2019
• Source: The Christ Hospital
• Contact: Hoi Tik H Yuen, MD
• Phone: (513) 463-2500
• Email: hoitik.yuen[@]thechristhospital.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study will explore the application of placing heparin into the bladder via a catheter to decrease postoperative lower urinary tract symptoms (LUTS) and urinary tract infection (UTI) symptoms such as urinary frequency, urinary urgency, pain with urination, or difficulty voiding following hysterectomy (surgically removing the uterus). The investigators hypothesize that heparin bladder instillations will reduce LUTS, UTI symptoms, and improve patient satisfaction following hysterectomy.

Description:

Data Collection

Subject demographics and history information will be obtained from The Christ Hospital Medical Center's electronic medical record. In addition, preoperative diagnosis, postoperative diagnosis, procedure performed, total operative time, estimated blood loss, intraoperative complications, anterior prolapse repair, use of cystoscopy, preoperative urinalysis, postoperative complications, uterine size, and any urine cultures collected within the 2 week postoperative period will also obtained from the electronic medical record.

The post-operative lower urinary tract symptoms assessments will be collected, the paper records will be secured in a locker labeled with the study identification number, which will then be entered into EXCEL on a password secured database and the paper copy will be disposed of in the secure destruction station.

Descriptive Analysis

Simple statistics and demographics will be done across the two cohorts. Categorical variables will be analyzed using Chi-square while continuous variables (e.g. UTISA scores) will be analyzed using t-test so long as the distribution of the data are normal. Additional analyzes as appropriate will be done to identify group differences based on patient demographics (e.g. age, concomitant procedures, surgeon, estrogen use, foley catheter placement, etc).

Data Analysis and Data Monitoring

The UTISA survey and VAS pain scale both result a continuous variable that between the two cohorts will be compared using a t-Test provided the results distribution is normal. Antibiotic use or self-reported UTI rates are nominal variables that across the cohorts would be compared using a X2.

Data analysis will be performed using statistical software (JMP 13.2.0, SAS Institute Inc., Cary NC, USA). The data will be assembled into a password protected EXCEL (Microsoft, Redmond WA, USA) spreadsheet. A separate password protected spreadsheet will link the study ID and the enrolled patient's MRN. Analysis would be done only on the de-identified data.

Data Storage and Confidentiality

Study data will be managed in a password-protected EXCEL (Microsoft, Redmond WA, USA) spreadsheet on a password-protected computer. A separate password protected spreadsheet linking the study ID and MRN will be kept on a separate password-protected secure drive. This "key" file will be securely destroyed when the data has been fully analyzed. Paper records including consent will be in a locked research drawer, in the designated locked office. The investigators will dispose of any paper documents after data has been analyzed using the CINTAS Secure Destruction Station.

Sample Size

The symptom with the highest sensitivity and specificity to predict a UTI is dysuria. A study in 2013 demonstrated a 50% reduction in UTIs among heparin treated patients, the investigators estimated an effect size of 0.6, assuming mean UTISA dysuria scores of 2 and 1 among the untreated and treated cohorts assessed on post-operative day 1. Assuming an α of 0.05 and 80% power, the investigators estimate requiring 45 subjects per study arm totaling 90 patients. Assuming at least 15% attrition in each arm, the investigators estimate needing to enroll at least 52 patients per study arm to a total of 104 patients.

Plans for recruitment of subjects

No advertisement will be used. The recruitment will take at the time of surgical consent, via phone after patient is identified at the time of preoperative visit, or on the day of surgery.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 104
• Est. completion date: March 1, 2020
• Est. primary completion date: December 31, 2019
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years to 85 Years

Eligibility

Inclusion Criteria:

• 18 to 85-years old

• scheduled to undergo a benign hysterectomy

Exclusion Criteria:

• non-English speakers

• current use of anticoagulants or thrombolytic agents

• known adverse reaction or hypersensitivity to heparin

• history of or active genitourinary tract cancer (bladder, uterine, cervical, ovarian or vaginal)

• history of neurogenic bladder

• pelvic irradiation

• chemical cystitis

• pregnancy

• antibiotic use within the past 30 days

• Surgical procedures involving: anterior or posterior colporrhaphy, vaginal mesh excision, fistula repair, diverticulum repair, urethral reconstruction, planned or incidental cystotomy

Related Conditions & MeSH terms

• Lower Urinary Tract Symptoms
• Postoperative Urinary Tract Infection
• Urinary Tract Infections

Intervention

Drug:
• Heparin
Heparin is a readily available glycosaminoglycan (GAG) chemically similar to hyaluronic acid and chondroitin sulfate that is currently used to treat chronic painful bladder or interstitial cystitis. Heparin intravesical treatment is an inexpensive second-line treatment for chronic painful bladder, characterized by urinary frequency, urgency and pain. Heparin has been shown to re-establish the bladder urothelial GAG layer and as already noted was shown to reduce recurrent urinary tract infections by 50%.
• Normal saline
Normal saline bladder instillation

Locations

Country	Name	City	State
United States	The Christ Hospital	Cincinnati	Ohio

Sponsors (1)

Lead Sponsor	Collaborator
The Christ Hospital

Country where clinical trial is conducted

United States, 

References & Publications (29)

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* Note: There are 29 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Lower urinary tract symptoms	lower urinary tract symptoms such as urgency, frequency, dysuria, and hematuria measured by the Urinary Tract Infection Symptoms Assessment Questionnaire (UTISA)	Postoperative day 14
Secondary	Postoperative antibiotic use	Obtained via phone interview	Postoperative day 1 to 14
Secondary	Postoperative patient satisfaction	Surgical Satisfaction Questionnaire (SSQ-8) assessment conducted via phone interview	Postoperative day 14