Environmental Enteric Dysfunction Clinical Trial
— PROFE-SenOfficial title:
Ability of the Probiotic Vivomixx to Improve Environmental Enteropathy in Pregnant Women: a Proof of Concept Trial in Senegal
Stunting in young children refers to attenuated linear growth. In the year 2020, 149.2 million children under the age of 5 were stunted, accounting for 22% of stunting globally. Stunting has short- and long-term consequences of increased morbidity and mortality, impairment of neurocognitive development , impaired responses to oral vaccines, and increased risk of non-communicable diseases. Stunting is partly driven by Environmental Enteric Dysfunction (EED), an enteropathic condition characterised by altered gut permeability, infiltration of immune cells and changes in villous architecture and cell differentiation. EED may help explain why nutritional supplementation either during pregnancy or early childhood has minimal value in correcting childhood stunting. Probiotics may serve to overcome the problem of EED through all mechanisms of pathogenicity, by providing additional bacteria that may help in intestinal decolonization of pathogenic microorganisms (changing the microbiological niche), promoting epithelial healing, improving nutrient absorption, and restoration of an appropriate immune balance between tolerance and responsiveness. This trial will explore the conceptual framework, that a well known probiotic, that can improve the composition of the gut microbiota, can reduce biomarkers of intestinal inflammation and gut health. This will restore healthy microbial signalling to the host epithelium, ameliorate barrier function through secretion of mucus and antimicrobial factors, and improve nutrient availability.
Status | Not yet recruiting |
Enrollment | 76 |
Est. completion date | October 2023 |
Est. primary completion date | April 2023 |
Accepts healthy volunteers | No |
Gender | Female |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Women over the age of 18, living in Guediawaye district, Senegal Exclusion Criteria: - • have had diarrhea, defined as the passage of three or more loose stools per 24 hours, in the preceding 14 days - have taken antibiotics or probiotics in the preceding 14 days - have taken non-steroidal anti-inflammatory drugs in the preceding 14 days - have any illness which in the opinion of the investigator will complicate assessment of safety or efficacy - have any gastrointestinal contraindication to ingestion of a capsule (known or suspected gastrointestinal obstruction, stricture, fistula, gastroparesis, or any swallowing disorder.) - have a plan to leave the study area within the follow-up period but may be enrolled if/when these disqualifiers have expired. |
Country | Name | City | State |
---|---|---|---|
Senegal | Centre de santé de Wakhinane | Guédiawaye | Dakar |
Lead Sponsor | Collaborator |
---|---|
Institut Pasteur de Dakar | Aga Khan University, Bill and Melinda Gates Foundation, International Centre for Diarrhoeal Disease Research, Bangladesh, University of Zambia |
Senegal,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | CapScan success rate in delivering an assessment of the microbiome | Recovery of useful data from CapScan; completion of whole gut microbiome profiles | Day 1 and Day 56 | |
Primary | Change in inflammation and epithelial damage in pregnant women with environmental enteropathy | Percentage change (mean, unweighted) in a multiple panel of biomarkers between baseline and last sample collected after 56 days of treatment, compared to control group. | Day 0 (screening) - Day 56 | |
Secondary | Change in enteropathogen colonisation | Change in colonisation with specific enteropathogens (Salmonella, Shigella, Campylobacter, ETEC, EPEC, EAEC, rotavirus, norovirus, Giardia and Cryptosporidium), by qPCR, between baseline and last sample collected after 56 days of treatment, in Vivomixx compared to placebo groups | Day 1 - Day 56 | |
Secondary | Impact on the structure and function of the microbiome | Change in microbiome at community and composition level (as measured by whole-genome shotgun metagenomic sequencing, post versus pre-intervention), in the intervention and placebo groups | Day 1 - Day 56 | |
Secondary | Change in permeability | Change in LR ratio in Vivomixx compared to placebo groups | Day 1 - Day 56 | |
Secondary | Impact of the host metabolome in pregnant woman | Change in metabolome, measured by Nuclear Magnetic Resonance (NMR) spectroscopy in faecal and CAPSCAN samples before and after intervention | Day 1 - Day 56 | |
Secondary | Rate of weight gain in the 2nd trimester of pregnancy | Weight gain velocity in the 2nd trimester of pregnancy | Day 0 (screening) - Day 56 | |
Secondary | Variability in endpoints across geographies and participating laboratories | Measurements of variability, including standard deviations and kappa values; Preliminary work across all sites using identical kits and harmonised SOPs | Beginning of recruitment in the first study site - end of recruitment in the last study site (approximately 12 months) |
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