Dysbiosis in food allergy and implications for microbial therapeutics.
M Cecilia Berin
https://pubmed.ncbi.nlm.nih.gov/33463542/Actively Recruiting
Led by Massachusetts General Hospital · Updated on 2023-10-18
60
Participants Needed
1
Research Sites
8 weeks
Total Duration
Researchers are evaluating the investigational medicine VE416 combined with vancomycin and peanut oral immunotherapy PNOIT for people with persistent peanut allergy. This randomized, double-blind trial has four groups comparing VE416 given before or during PNOIT to low-dose PNOIT alone, aiming to see if VE416 may help reduce allergic reactions and is safe to use. The study includes four arms one with vancomycin then VE416 before starting PNOIT another with vancomycin and VE416 taken together with PNOIT a third with placebo vancomycin and active VE416 with PNOIT and a fourth with placebo vancomycin and placebo VE416 alongside active PNOIT. Treatments involve capsules taken daily for specified periods, with vancomycin given for 5 days and VE416 for 6 weeks in different sequences depending on the group. Participants aged 12 to 55 with a diagnosed peanut allergy will be involved over several phases lasting up to 54 weeks. They will undergo evaluations including allergy testing, monitoring for allergic reactions, and safety assessments. The main outcomes measured include the response after 7 and 23 weeks and longer-term efficacy and safety through 54 weeks. The study includes a maintenance phase and a blinded food challenge to assess tolerance.
CONDITIONS
VE416 for Treatment of Food Allergy
W
Wayne G Shreffler, MD, PhD
J
Jannat Gill, BDS, MPH
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Massachusetts General Hospital
Lead Sponsor
Vedanta Biosciences, Inc.
Collaborating Sponsor
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
| Factors | Vancomycin + VE416 before PNOIT | Vancomycin + VE416 with PNOIT | Placebo + VE416 with PNOIT | Placebo + Placebo with PNOIT | Avoidance standard care |
|---|---|---|---|---|---|
| What it is | Combination of oral vancomycin followed by oral VE416 then PNOIT desensitization protocol | Oral placebo then vancomycin plus VE416 given together with PNOIT desensitization | Sequential placebo followed by active VE416 with PNOIT desensitization | Placebo before and during PNOIT as active comparator control | Strict avoidance of peanut and preparedness for allergic reactions |
| Role in trial | One of the active investigational arms combining antibiotics and microbiome modulator before PNOIT | Active investigational arm combining antibiotic and microbiome modulator during PNOIT | Active investigational arm testing VE416 with PNOIT only | Control arm with no active agent added to PNOIT | Existing management method rather than trial treatment |
| Primary use | Induce peanut desensitization via microbiome modulation before PNOIT | Facilitate PNOIT via concurrent microbiome modulation with vancomycin | Test VE416 impact alone when combined with PNOIT | Serve as placebo control for PNOIT additions | Prevent allergic reactions by avoidance and emergency response |
| How it is given or performed | Oral vancomycin once daily for 5 days, then oral VE416 once daily for 6 weeks followed by PNOIT | Oral placebo for 5 days then oral vancomycin 5 days and VE416 6 weeks together with PNOIT | Placebo for vancomycin for 5 days, then VE416 for 6 weeks with PNOIT | Placebo for both vancomycin and VE416 for entire PNOIT period | Dietary avoidance of peanut plus readiness to treat accidental reactions |
| Evidence status | Efficacy is under investigation; no published results yet | Efficacy is under investigation; no published results yet | Efficacy is under investigation; no published results yet | Comparator under investigation; efficacy not yet known | Avoidance is established standard based on long‑term clinical practice |
| Important risks | Risks unknown; safety profile being evaluated in trial | Risks unknown; safety profile under study | Risks unknown; safety being monitored | Risks unknown; trial will monitor safety | Avoidance has risks of accidental exposure and anxiety, with emergency epinephrine readiness as ongoing need |
| Important limitations | Investigation in early stages; results not yet available | Trial-based hypothesis; not yet validated in practice | Efficacy and safety data are pending | Results endpoint evaluation has not occurred | Palforzia was FDA‑approved but is now discontinued, limiting access to standardized OIT |
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
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Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Up to 17 weeks total: 5 days of vancomycin, 6 weeks of VE416, followed by peanut oral immunotherapy
Participants receive vancomycin and VE416 capsules along with peanut oral immunotherapy in varying sequences depending on their assigned group.
Weekly visits for up to 17 weeks
Duration - Up to 37 weeks after treatment
Participants are monitored for safety and efficacy after completing treatment with VE416 and peanut oral immunotherapy.
Regular follow-up visits up to 54 weeks
Study Type
INTERVENTIONAL
Masking
QUADRUPLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
4
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M Cecilia Berin
https://pubmed.ncbi.nlm.nih.gov/33463542/Massachusetts General Hospital
Lead Sponsor
Vedanta Biosciences, Inc.
Collaborating Sponsor