Prebiotics for Spinal Cord Injury Patients With Bowel and Bladder Dysfunction

Overview

An investigator initiated pilot study: two arm, double blind, placebo controlled, randomized, group of approximately 60 patients with spinal cord injury, and who have evidence of neurogenic bladder. Patients will be treated with human milk oligosaccharide (HMO) versus placebo over 12 weeks from start of the investigational medication date (approximately 3 months) to test whether HMO can improve bowel motility in neurogenic bowel and bladder patients. Patients in the placebo arm of the study will be offered participation in the open label portion of the study immediately after their part in the control group is completed, they will receive HMO for 12 weeks. HMO sachets will be administered to determine the safety and efficacy of HMO relative to placebo in improving quality of life of neurogenic bowel and bladder patients by improving bowel motility and function.

Spinal cord injury (SCI) is a life changing neurologic diagnosis that affects multiple body systems. Urinary tract infections (UTIs) are almost a universal complication of SCI with bladder dysfunction, and a significant cause of morbidity in those with SCI. Recurrent UTIs requires multiple courses of antibiotic therapy, increasing the incidence of multidrug-resistant bacteria. While curative antibiotic therapy is transiently effective, recurrences are frequent and bladder colonization is inevitable after SCI because of an impaired ability to empty the bladder. Meta-analysis of SCI and UTI have shown there is no evidence to support the use of prophylactic antibiotics. Although the exact mechanism of action is not fully understood, nearly all UTIs are caused by bacteria from the bowel. Therefore, addressing the impaired bowel function in SCI patients would not only improve this debilitating condition but also reduce UTI's and the need for antibiotic therapy. Since prebiotics are metabolised by bacteria in the colon and their by-products promote intestinal peristalsis and can relieve constipation, they could represent an effective option to treat bowel dysfunction in SCI patients. The study's aim is to improve bowel motility in SCI patients with neurogenic bowel impairments by using 2'-O-fucosyllactose and lacto-N-neotetraose, novel human milk oligosaccharide (HMO) sugars that have already been shown to very specifically modulate intestinal bacteria. In the bowel, the HMO would induce an increase in bifidobacteria, which would further produce short chain fatty acids such that stimulate bowel motility and other beneficially regarded bacteria. The Principal Investigator/Sponsor will test this potential in a pilot clinical study with a HMO mix that has shown to promote bifidobacteria (Ellison 2016). These HMO compounds are structurally different from the less pure, plant-or bovine dairy-based prebiotics that are currently used in other human applications, and are safe, well tolerated, food grade substances. They have been shown to soften the stools in healthy adults and reduce constipation; therefore, it is expected they will positively impact the quality of life of neurogenic bowel and bladder patients by improving bowel motility, and also reducing the associated co-morbidity of recurrent urinary tract infections. The study will collect data on a sample of up to 60 patients with SCI and neurogenic bowel dysfunction scores of \>13. The Principal Investigator/Sponsor will assess the HMO's effects on the quality of life, intestinal bacterial composition, bowel motility, and associated co-morbidities such as urinary tract infections (UTIs). In the longer term this is expected to reduce UTI occurrence due to reduced pathogen loading; as a consequence, reduce antibiotic use and levels of drug resistant bacteria.If the study If successful, the results outlining its significance could be forwarded to the senior management team at the recruiting hospital to be considered as a potential management tool in the care of patients with SCI. This study will assess faecal and urine samples at four time points for microbiome and other analyses at baseline, 4 weeks, 8 weeks (approximately 2 months) and 12 weeks (approximately 3 months) from the date of starting the study product. Prior to commencing their treatment, and at weeks 8 and 12, the research coordinator (blinded to the randomisation) will assess patients using various bowel, bladder and quality of life questionnaires during clinic visits, at home or by telephone interview. The type, level, and completeness of injury will be documented, and the type of bowel and bladder dysfunction (upper or lower motor neuron) will be classified and, if necessary, updated at each in-person visit. Each participant will be provided with instructions and study schedule. Protocol compliance will be tested through product count and interviews at each follow-up visit. Side effects will be assessed using standardized case report forms at each visit. Study visits may be in person or over the phone. Participants will be encouraged to report any events they may experience directly to the coordinator. Participants who withdraw consent to continue treatments, will be encouraged to undergo the planned assessments. Withdrawal at the request of investigators or medical personnel may include, but are not limited to: 1. Symptoms are deemed to be potentially related to the study product 2. New diagnosis of exclusion criteria; 3. Unacceptable side effects; 4. Death Estimated time to complete recruitment: Averaging 53 weeks, approximately 12 months