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Completed Phase 2 Interventional Results available

Open-Label Extension of CP101 Trials Evaluating Oral Full-Spectrum Microbiota™ (CP101) in Subjects With Recurrence of Clostridium Difficile Infection

ClinicalTrials.gov ID: NCT03497806

Public ClinicalTrials.gov record NCT03497806. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 20, 2026, 3:42 AM EDT

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

Official title

PRISM-EXT: An Open-Label Extension of CP101 Trials Evaluating Oral Full-Spectrum Microbiota™ (CP101) in Subjects With Recurrence of Clostridium Difficile Infection

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is an open-label study evaluating the safety and efficacy of CP101 treatment in 1) Subjects in CDI-001 who had a CDI recurrence within 8 weeks of receiving CP101 or placebo; OR 2) adults with recurrent CDI who are eligible for direct study entry into CP101-CDI-E02. Subjects who are experiencing recurrent CDI will undergo screening procedures. Subjects who meet eligibility criteria will be eligible to be enrolled in he study and administered CP101. Approximately 200 subjects will receive CP101. The treatment duration will be 1 day. Subjects will be monitored for recurrence of CDI, safety, and tolerability for 24 weeks following receipt of CP101. The primary efficacy and safety endpoints will be evaluated at 8 weeks post treatment, and all subjects will continue to be followed for an additional 16 weeks for safety and recurrence of CDI.

Study identification

NCT ID
NCT03497806
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Enrollment
132 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
May 1, 2018 (Actual)
Primary completion
Dec 31, 2020 (Actual)
Completion
Apr 1, 2021 (Actual)
Last update posted
Aug 30, 2022

2018 – 2021

United States locations

U.S. sites
53
U.S. states
29
U.S. cities
50
Facility City State ZIP Site status
Scottsdale Scottsdale Arizona 85054 —
Los Angeles Los Angeles California 90095 —
Murrieta Murrieta California 92563 —
Oakland Oakland California 94705 —
San Diego San Diego California 92123 —
San Francisco San Francisco California 94115 —
Aurora Aurora Colorado 80045 —
Bridgeport Bridgeport Connecticut 06610 —
Hamden Hamden Connecticut 06518 —
Washington DC Washington D.C. District of Columbia 20422 —
Jacksonville Jacksonville Florida 32216 —
Naples Naples Florida 34102 —
Pinellas Park Pinellas Park Florida 33781 —
Tampa Tampa Florida 33614 —
Atlanta Atlanta Georgia 30322 —
Idaho Falls Idaho Falls Idaho 83404 —
Burr Ridge Burr Ridge Illinois 60527 —
Chicago Chicago Illinois 60637 —
Evanston Evanston Illinois 60201 —
Maywood Maywood Illinois 60153 —
Indianapolis Indianapolis Indiana 46202 —
West Des Moines West Des Moines Iowa 50266 —
Shawnee Shawnee Mission Kansas 66217 —
New Orleans New Orleans Louisiana 70121 —
Boston Boston Massachusetts 02115 —
Detroit Detroit Michigan 48202 —
Royal Oak Royal Oak Michigan 48073 —
Rochester Rochester Minnesota 55905 —
St. Paul Saint Paul Minnesota 55102 —
Butte Butte Montana 59701 —
Morristown Morristown New Jersey 07960 —
Somers Point Somers Point New Jersey 08244 —
New York New York New York 10016 —
New York New York New York 10021 —
New York New York New York 10029 —
Bronx The Bronx New York 10467 —
Chapel Hill Chapel Hill North Carolina 27599 —
Kinston Kinston North Carolina 28501 —
Pinehurst Pinehurst North Carolina 28374 —
Winston-Salem Winston-Salem North Carolina 27103 —
Winston-Salem Winston-Salem North Carolina 27157 —
Cincinnati Cincinnati Ohio 45267 —
Poland Poland Ohio 44514 —
Portland Portland Oregon 97239 —
Providence Providence Rhode Island 02904 —
Nashville Nashville Tennessee 37212 —
San Antonio San Antonio Texas 78229 —
Ogden Ogden Utah 84403 —
Salt Lake City Salt Lake City Utah 84124 —
Annandale Annandale Virginia 22003 —
Charlottesville Charlottesville Virginia 22908 —
Seattle Seattle Washington 98101 —
Grafton Grafton Wisconsin 53024 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 4 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03497806, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Aug 30, 2022 · Synced Oct 20, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03497806 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →