A Within Subjects Comparison of Two Antegrade Flushing Regimens in Children

NCT ID: NCT02435069

Last Updated: 2019-08-28

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE4
• Total Enrollment: 5 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2016-02-09
• Study Completion Date: 2018-03-30

Brief Summary

There is a surgical procedure to help children with intractable fecal incontinence gain continence for stool through construction of a tube that connects the abdominal wall to the colon near or through the appendix. This tube allows easy administration of enema solution into the first part of the colon. Putting enema solution through that tube into the colon is called an antegrade continence enema (ACE) and has been shown to work well in helping some but not all children prevent stool accidents. The purpose of this study is to compare a large volume ACE flush using a salt water solution called normal saline with a small volume ACE flush using liquid glycerin. The aims of this study are to: 1) find the most effective dose and flush frequency of each solution needed to prevent stool accidents; 2) compare which solution given at the best dose has the least side effects and 3) to determine if administration of either of the ACE flushing solutions causes electrolyte abnormalities or affects colon health.

Detailed Description

Fecal incontinence past the time of toilet training is devastating to affected children. Antegrade continence enema (ACE) therapy administered through a catheterizable stoma surgically placed in the cecum has helped children with intractable fecal incontinence attain continence for stool. There are a number of retrospective studies demonstrating the variable effectiveness rates of ACE therapy. This variability may be due to what is used to flush. There are no prospective trials evaluating the effectiveness of different flushing regimens. The catheterizable stoma used for the antegrade administration of enema solution is frequently made by bringing the appendix out through the abdominal wall or by placing a skin-level device (button) in to the cecum. ACE therapy administration through the appendix or into the cecum has the potential to cause colonic dysfunction. The effects of ACE administration on colonic mucosal health has not been investigated. This pilot study will compare a high volume normal saline (NS) flush and a low volume United States Pharmacopeia (USP) glycerin flush. The primary aims of the study are to compare which solution, given at an optimal dose and frequency, is associated with fewer side effects, while promoting the higher degree of fecal continence, and to determine if antegrade enema solution administration through an appendicostomy/cecostomy causes electrolyte abnormalities or affects gut health.

Conditions

Fecal Incontinence; Neurogenic Bowel

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: SUPPORTIVE_CARE
• Blinding Strategy: NONE

Study Groups

Pre-operative Baseline Phase

Baseline data including frequency and severity of fecal soiling and frequency and severity of abdominal pain were collected for a minimum of 2 weeks prior to surgical construction of the ACE stoma. Baseline stool calprotectin and serum electrolytes were collected in the baseline phase prior to initiation of the preoperative bowel prep. Pre-operative data served as the control.

Group Type: NO_INTERVENTION

No interventions assigned to this group

Dose Response - NS and USP Glycerin - First Intervention

Initial flush used NS or USP Glycerin randomized to treatment sequence. The starting volume and administration frequency for NS was 10mL/kg and glycerin 20 mL administered every other day. The NS dose was titrated in 10 mL increments to achieve continence so as not to exceed 500 mL daily for a child under five years of age and 1000 mL daily for a child over 5 years of age. USP Glycerin was titrated in 5 mL increments so as not to exceed 50 mL daily. For side effects greater than Wong Bailey Faces Pain Rating Scale (WBFPRS) level 4, NS was decreased by 2.5 mL/kg to the lowest dose of 5 mL/kg daily. USP Glycerin was decreased in 5 mL increments to the lowest dose of 5 mL daily. If the maximum dose did not result in continence, if the dose necessary to minimize side effects resulted in fecal soiling, or if there were side effects greater than WBFPRS level 4 at the lowest dose of administration, the child was be trialed on the alternate therapy and then dropped from the study.

Group Type: EXPERIMENTAL

Dose Response - NS and USP Glycerin - First Intervention

Intervention Type: DRUG

This trial used a repeated measures, single subjects alternating treatments A-B-C-B'-C'-B1' withdrawal design in which all subjects were tested under all conditions and each subject acted as his or her own control. The subjects were randomly assigned to either normal saline or USP glycerin to control for order effects. Baseline data A served as the control and was obtained pre-operatively. The B-C arm evaluated dose-response relationship and was used to identify the minimum dosing volume and frequency of ACE administration of NS and USP Glycerin necessary to promote fecal continence. When the optimal dose as identified, the child continued on that dose for 2 weeks to insure treatment stability and effectiveness.

NS and USP Glycerin - Effectiveness - Second Intervention

To prevent statistical bias from subject loss due to treatment failure, each child was randomized to a second treatment sequence once they achieved continence on optimal dosing with minimal side effects.This arm evaluated the long term effectiveness of NS and glycerin at optimal dose and administration frequency for 4 weeks and served as comparison between flush solutions. The study concluded with the child being placed back on 2 weeks of the initial flush in the randomized sequence.

Group Type: EXPERIMENTAL

Effectiveness - NS and USP Glycerin - Second Intervention

Intervention Type: DRUG

To prevent statistical bias from subject loss due to treatment failure, each child was randomized to a second treatment sequence once they have achieved continence with minimal side effects on optimal dosing The second phase B'-C'-B1' of the study compared the two regimens at optimal dose and administration frequency. This phase was used to confirm the effectiveness of NS and USP Glycerin at optimal dosing on continence and assess side effects.

Interventions

Dose Response - NS and USP Glycerin - First Intervention

This trial used a repeated measures, single subjects alternating treatments A-B-C-B'-C'-B1' withdrawal design in which all subjects were tested under all conditions and each subject acted as his or her own control. The subjects were randomly assigned to either normal saline or USP glycerin to control for order effects. Baseline data A served as the control and was obtained pre-operatively. The B-C arm evaluated dose-response relationship and was used to identify the minimum dosing volume and frequency of ACE administration of NS and USP Glycerin necessary to promote fecal continence. When the optimal dose as identified, the child continued on that dose for 2 weeks to insure treatment stability and effectiveness.

Intervention Type: DRUG

Effectiveness - NS and USP Glycerin - Second Intervention

To prevent statistical bias from subject loss due to treatment failure, each child was randomized to a second treatment sequence once they have achieved continence with minimal side effects on optimal dosing The second phase B'-C'-B1' of the study compared the two regimens at optimal dose and administration frequency. This phase was used to confirm the effectiveness of NS and USP Glycerin at optimal dosing on continence and assess side effects.

Intervention Type: DRUG

Other Intervention Names

0.9% sodium chloride solution, Glycerol, Glycerin; 0.9% sodium chloride solution, Glycerol, Glycerin

Eligibility Criteria

Inclusion Criteria

• This study will involve twelve children ages 3 to 12 years recruited from subspecialty clinics at Nemours Children's Subspecialty Care and the Pediatric Spinal Defects Clinic in Jacksonville, Florida.
• Children will be selected by purposive sampling and will include those who are scheduled to have an ACE stoma and will require regular antegrade enema administration to maintain continence.

Exclusion Criteria

• Excluded will be children with preexisting electrolyte imbalance, chronic high rectal tone, quadriplegia, renal or cardiac disease, or those who require prophylactic antibiotics, cannot communicate, or have significant cognitive delay that would interfere with their ability to fully participate in the study.
• Parents must have English language competency and be willing and able to participate in administration or oversight of the flushing regimen and data collection for a minimum of 20 consecutive weeks. -

• Minimum Eligible Age: 3 Years
• Maximum Eligible Age: 12 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

University of Florida

OTHER

Sponsor Role: collaborator

Nemours Children's Clinic

OTHER

Sponsor Role: lead

Responsible Party

Kim Jarczyk

Retired. Non-associate Emeritus

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Kimberly S Jarczyk, PhD

Role: PRINCIPAL_INVESTIGATOR

Nemours Children's Specialty Care

Locations

Nemours Children's Specialty Clinic

Jacksonville, Florida, United States

Countries

United States

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Reference Type: RESULT

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