SER-109 Versus Placebo to Prevent Recurrent Clostridium Difficile Infection (RCDI) (ECOSPOR)
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ClinicalTrials.gov Identifier: NCT02437487 |
Recruitment Status :
Completed
First Posted : May 7, 2015
Results First Posted : July 26, 2018
Last Update Posted : July 26, 2018
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Clostridium Difficile | Drug: SER-109 Drug: Placebo | Phase 2 |
ECOSPOR is a Phase 2, multicenter, randomized, double blind, placebo controlled clinical study with 2 treatment arms (SER-109 or placebo). Patients who have diarrhea and a positive C. difficile test result on a stool sample, and who have responded to standard of care antibiotic treatment will receive study drug on Day 1.
Those patients who experience a recurrence of CDI up to 8 weeks after SER 109 or placebo treatment will be offered an opportunity to enroll in an open label SER 109 extension study (Study SERES 005).
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 89 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Prevention |
Official Title: | ECOSPOR: A RandomizEd, Double Blind, Placebo COntrolled, Parallel Group Study of SER 109 to Prevent Recurrent ClOstRidium Difficile Infection |
Study Start Date : | May 2015 |
Actual Primary Completion Date : | July 2016 |
Actual Study Completion Date : | October 2016 |
Arm | Intervention/treatment |
---|---|
Experimental: SER-109
SER 109 (1 × 108 SporQs)
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Drug: SER-109
SER 109 is a rationally designed ecology of bacterial spores enriched from stool donations obtained from healthy, screened donors.
Other Name: Purified Eubacterial Spores, Encapsulated |
Placebo Comparator: Placebo
Placebo
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Drug: Placebo
Placebo will be identical to the investigator product but will not contain product spores or non-spore solids. Placebo will consist of 92% glycerol and 8% normal saline. |
- Number of Subjects With CDI Recurrence [ Time Frame: 8 weeks after treatment. ]
- Time to Recurrence of CDI [ Time Frame: Recurrence of CDI up to 24 weeks after treatment. ]Kaplan-Meier estimate of median number of days to recurrence
- Number of Subjects With CDI Recurrence [ Time Frame: 4 Weeks ]
- Number of Subjects With CDI Recurrence [ Time Frame: 12 Weeks ]
- Number of Subjects With CDI Recurrence [ Time Frame: 24 Weeks ]

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Signed informed consent, indicating that the patient understands the purpose of and procedures required for the study. Patients who are unable to provide informed consent will not be included in the study.
- Male or female patients ≥ 18 years.
- ≥ 3 episodes of CDI within the previous 9 months, inclusive of the current episode with documentation of ≥ 2 episodes.
Exclusion Criteria:
- Female patients who are pregnant, breastfeeding, lactating, or planning to become pregnant during the study.
- Known or suspected toxic megacolon and/or known small bowel ileus.
- Active irritable bowel syndrome with diarrhea within the previous 12 months.
- Major gastrointestinal surgery (eg, significant bowel resection or diversion) within 3 months before enrollment (this does not include appendectomy or cholecystectomy) or any history of total colectomy or bariatric surgery.
- History of inflammatory bowel disease (ulcerative colitis, Crohn's disease, microscopic colitis) with diarrhea believed to be caused by active inflammatory bowel disease in the past 24 months.
- Admitted to or expected to be admitted to an acute care facility or intensive care unit for medical reasons (not just boarding). Patients discharged from an acute care facility before Day 1 or residing in nursing homes or rehabilitation facilities may be enrolled.
- Concurrent intensive induction chemotherapy, radiotherapy, or biologic treatment for active malignancy (patients on maintenance chemotherapy may only be enrolled after consultation with medical monitor).

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02437487

Study Director: | Michele Trucksis, Phd, MD | Seres Therapeutics |
Responsible Party: | Seres Therapeutics, Inc. |
ClinicalTrials.gov Identifier: | NCT02437487 |
Other Study ID Numbers: |
SERES-004 |
First Posted: | May 7, 2015 Key Record Dates |
Results First Posted: | July 26, 2018 |
Last Update Posted: | July 26, 2018 |
Last Verified: | June 2018 |
Clostridium Infections Infections Gram-Positive Bacterial Infections Bacterial Infections Bacterial Infections and Mycoses |