OPT-80 in Clostridium Difficile-Associated Diarrhea (CDAD)

This study has been completed.
Information provided by:
Merck Sharp & Dohme Corp.
ClinicalTrials.gov Identifier:
First received: November 23, 2004
Last updated: April 27, 2015
Last verified: December 2005

The purpose of this study is to investigate the safety and perform preliminary clinical evaluation in patients with mild to moderate CDAD.

Condition Intervention Phase
Drug: OPT-80
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: An Open-Label, Dose Ranging, Randomized Clinical Evaluation of OPT-80 in Patients With Clostridium Difficile-Associated Diarrhea (CDAD)

Resource links provided by NLM:

Further study details as provided by Merck Sharp & Dohme Corp.:

Primary Outcome Measures:
  • Relief of symptoms of CDAD

Secondary Outcome Measures:
  • Recurrence Rate.

Study Start Date: November 2004
Estimated Study Completion Date: July 2005
Detailed Description:

This is a dose-finding study to select a safe and efficacious dose of OPT-80. Patients will be evaluated for safety and efficacy and pharmacokinetic parameters will be investigated.


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients with CDAD

Exclusion Criteria:

  • Patients with severe CDAD
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00097422

United States, Pennsylvania
Advanced Biologics
New Hope, Pennsylvania, United States, 18938
Sponsors and Collaborators
Merck Sharp & Dohme Corp.
  More Information

No publications provided

ClinicalTrials.gov Identifier: NCT00097422     History of Changes
Other Study ID Numbers: OPT-80 Phase 2A
Study First Received: November 23, 2004
Last Updated: April 27, 2015
Health Authority: United States: Food and Drug Administration
Canada: Health Canada

Keywords provided by Merck Sharp & Dohme Corp.:
CDAD, diarrhea
Clostridium difficile-Associated Diarrhea

Additional relevant MeSH terms:
Signs and Symptoms
Signs and Symptoms, Digestive

ClinicalTrials.gov processed this record on October 13, 2015