Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 3, 2026, 10:54 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–10 of 10 matching trials from the live ClinicalTrials.gov search.
Filters: Sponsor: Kaleido Biosciences Clear all
Completed Not applicable Interventional

A Clinical Study to Assess the Natural History of COVID-19 and Effects of KB109 and Supportive Self-care in Outpatients With Mild-to-moderate COVID-19

NCT04414124
View directory record Official record
Conditions
Mild-to-moderate COVID-19
Interventions
KB109 + Self Supportive Care (SSC), Self Supportive Care (SSC) Alone
Other
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years and older
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
16
States / cities
Hot Springs, Arkansas • Riverside, California • San Diego, California + 12 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2021 · Synced Oct 3, 2026, 10:54 AM EDT
Completed Not applicable Interventional

Clinical Food Study to Evaluate the Effect of KB174 on the Gut Microbiome in Subjects With Well-compensated Cirrhosis

NCT03855956
View directory record Official record
Conditions
Early Cirrhosis
Interventions
KB174, Maltodextrin
Other
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
4
States / cities
Hollywood, Florida • Miami, Florida • Winter Park, Florida + 1 more
Source: ClinicalTrials.gov public record
Updated May 14, 2020 · Synced Oct 3, 2026, 10:54 AM EDT
Terminated Phase 2 Interventional

UNLOCKED: A Phase 2, Open-label Trial With KB195 in Subjects With a Urea Cycle Disorder

NCT03933410
View directory record Official record
Conditions
Urea Cycle Disorder
Interventions
KB195
Drug
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
6
States / cities
Washington D.C., District of Columbia • Tampa, Florida • Baltimore, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2022 · Synced Oct 3, 2026, 10:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Clinical Study to Assess the Effect of Novel Glycans on Nitrogen Metabolism of the Gut in Healthy Subjects

NCT04603378
View directory record Official record
Conditions
Healthy
Interventions
KB195, Polydextrose, Pullulan, Maltodextrin
Other
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years to 50 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 26, 2020 · Synced Oct 3, 2026, 10:54 AM EDT
Terminated Not applicable Interventional

VITORA: Clinical Study to Evaluate the Effect of KB109 on the Gut Microbiome in Subjects Whose Gastrointestinal Tracts Are Colonized With Multiple Drug-resistant Organisms

NCT03944369
View directory record Official record
Conditions
Vancomycin-Resistant Enterococcus, Extended-Spectrum Beta Lactamase-Producing Enterobacteriaceae, or Carbapenem-Resistant Enterobacteriaceae Colonized Subjects
Interventions
KB109, No intervention
Other
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
8
States / cities
Torrance, California • Atlanta, Georgia • Augusta, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2021 · Synced Oct 3, 2026, 10:54 AM EDT
Completed Not applicable Interventional

A Clinical Study to Assess the Effects of KB295 in Patients With Ulcerative Colitis (UC) on Gut Microbiota Structure and Function

NCT04508413
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
KB295
Other
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Chicago, Illinois • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jan 24, 2022 · Synced Oct 3, 2026, 10:54 AM EDT
Completed Not applicable Interventional

A Clinical Study to Assess the Physiologic Effects of KB109 in Patients With COVID-19 on Gut Microbiota Structure and Function

NCT04486482
View directory record Official record
Conditions
Mild-to-Moderate COVID-19
Interventions
KB109 + Self Supportive Care (SSC), Self Supportive Care (SSC) Alone
Other
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
12
States / cities
Cullman, Alabama • Los Angeles, California • Rancho Cucamonga, California + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2021 · Synced Oct 3, 2026, 10:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Clinical Study to Assess the Effect of Increasing Intake Amounts of Two Novel Glycans on the Gut Microbiota of Healthy Subjects

NCT04619875
View directory record Official record
Conditions
Healthy
Interventions
KB5, SG1, Lactulose
Other
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years to 60 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 6, 2020 · Synced Oct 3, 2026, 10:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Diet on the Tolerability of FOS in Healthy Volunteers

NCT02628678
View directory record Official record
Conditions
Healthy
Interventions
FOS
Dietary Supplement
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years to 65 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 30, 2016 · Synced Oct 3, 2026, 10:54 AM EDT
Completed No phase listed Observational

An Observational Clinical Study to Evaluate COVID-19 Symptoms in "Long Hauler" Patients Who Participated in K031-120 or K032-120

NCT04814914
View directory record Official record
Conditions
COVID-19
Interventions
KB109 + Self Supportive Care, Self Supportive Care (SSC) Alone
Other
Lead sponsor
Kaleido Biosciences
Industry
Eligibility
18 Years and older
Enrollment
333 participants
Timeline
2021
U.S. locations
2
States / cities
Hot Springs, Arkansas • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 18, 2021 · Synced Oct 3, 2026, 10:54 AM EDT