Synbiotic Therapy of Gastrointestinal Symptoms During Covid-19 Infection
- Conditions
- COVID
- Interventions
- Dietary Supplement: PlaceboDietary Supplement: Omnibiotic AAD
- Registration Number
- NCT04420676
- Lead Sponsor
- Medical University of Graz
- Brief Summary
We hypothesize that the intake of Omni-Biotic® 10 AAD can reduce intestinal inflammation and improves dysbiosis in Covid-19 disease. We further hypothesize that Omni-Biotic® 10 AAD can reduce the duration of diarrhea, stool frequency, improve stool consistency, improve other gastrointestinal symptoms of Covid-19, reduce disease duration and severity.
The investigators aim to perform a randomized, double blind, placebo-controlled study using telemedicine in patients with Covid-19 disease.
- Detailed Description
The outbreak of the novel coronavirus (SARS-CoV-2)-infected disease (COVID-19) began in Wuhan, Hubei province in December 2019, spread throughout China in early 2020 and developed as a pandemic thereafter. Although the virus mainly causes respiratory symptoms, GI (gastrointestinal) presentations have been reported in and outside of China. Patients may present with anorexia, nausea, vomiting, diarrhea and abdominal discomfort. Also, faecal-oral transmission of the virus is currently discussed. Preliminary, unpublished data from China suggest that patients with GI symptoms may suffer more frequently from severe courses of the disease. Clinical studies show an incidence rate of diarrhea ranging from 2% to 50% of cases. It may precede or trail respiratory symptoms. A pooled analysis revealed an overall percentage of diarrhea onset of 10.4%. SARS-CoV-2 uses the angiotensin-converting enzyme 2 (ACE2) for cellular entry. ACE2 is expressed in the small intestinal epithelia as well as in the upper esophagus, liver, and colon. SARS-CoV-2 binding affinity to ACE2 is significantly higher (10-20 times) compared with SARS-CoV. Diarrhea is associated with prolonged symptoms and viral carriage.
Clinical information on the characteristics of Covid-19 diarrhea is scarce. The duration of diarrhea is around 4 days with 3-4 loose stools per day. Faecal calprotectin is elevated in stool of patients with Covid-19 diarrhea, indicating a relation between gastrointestinal symptoms and this well-established inflammation biomarker.
So far, no therapy is available for Covid-19 infection in general or for Covid-19 induced diarrhea. Rehydration and potassium monitoring should be performed as in all patients with diarrhea. It is important to underline that antivirals and antibiotics are often used for COVID-19 treatment or treatment of bacterial superinfections, involving a likely alteration of the gut microbiota and causing diarrhea. It is therefore plausible that the gut microbiota could be a new therapeutic target and that probiotics or synbiotics (combination of probiotics with prebiotics) could have a role in the management of these patients. The China's National Health Commission recommended the use of probiotics for the treatment of patients with severe COVID-19 in order to preserve intestinal balance and to prevent secondary bacterial infections without any available clinical studies to support this and probiotics apparently were used in Zhejiang during the Covid-19 pandemic. Although there is no specific data on the effects of probiotics on SARS-CoV2 infections, meta-analyses show that probiotics are effective in the treatment of upper respiratory tract infections and viral gastroenteritis of other origins. Furthermore, Enterococcus faecium has been shown to have antiviral effects in enteropathogenic coronavirus transmissible gastroenteritis virus infections in piglets. We therefore aim to assess the role of synbiotics in the therapy of Covid-19 infection with gastrointestinal symptoms.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 30
Not provided
Not provided
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Placebo Placebo Group 2: receiving a similar looking and tasting placebo without bacteria twice a day Probiotic Omnibiotic AAD Group 1: receiving a probiotic mixture (Omni-Biotic® 10 AAD) twice a day
- Primary Outcome Measures
Name Time Method Stool calprotectin 30 days measured by ELISA
- Secondary Outcome Measures
Name Time Method Stool consistency 30 days Stool consistency according to Bristol stool scale for each evacuation, score 1-7, a higher score means a lower stool consistancy
Duration of Covid-19 disease 30 days days patients feel sick, are not able to work or are on sick leave
Severity of Covid-19 disease 30 days mild/moderate/severe
Stool Zonulin 30 days measured by ELISA
Microbiome composition 30 days 16S RNA sequencing
Stool frequency 30 days stool evacuations per days
Gastrointestinal symptoms 30 days presence of anorexia, nausea, vomiting, abdominal pain, bloating (yes/no)
Diarrhea 30 days 3 or more stool evacuations, consistency Bristol stool scale 5-7
Trial Locations
- Locations (1)
Department of Internal Medicine, Medical University of Graz
🇦🇹Graz, Austria