Phase 3
Completed N=611
Safety and Efficacy of Fidaxomicin Versus Placebo for Prophylaxis Against Clostridium Difficile-Associated Diarrhea in Adults Undergoing Hematopoietic Stem Cell Transplantation (MK-5119-001)
Clostridium Difficile-Associated Diarrhea (CDAD)
Source: ClinicalTrials.gov NCT01691248 ↗
Enrolled (actual)
611
Serious AEs
31.7%
Results posted
Apr 2016
Primary outcomePrimary: Percentage of Participants With Occurrence of CDAD From Start of Study Treatment up to 30 Days Post-treatment Follow-up. — 28.6; 30.8 Percentage of participants — p=0.2778
◆ Published Evidence
Established
55citations · ~8 / year
A Randomized, Placebo-controlled Trial of Fidaxomicin for Prophylaxis of Clostridium difficile-associated Diarrhea in Adults Undergoing Hematopoietic Stem Cell Transplantation.
Summary
The objective of this study is to demonstrate the efficacy and safety of Fidaxomicin versus placebo for prophylaxis against Clostridium difficile-Associated Diarrhea (CDAD) in adult participants undergoing hematopoietic stem cell transplantation (HSCT). The primary hypothesis is that Fidaxomicin is superior to placebo in preventing CDAD in participants undergoing HSCT.
Linked Publications (2)
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A Randomized, Placebo-controlled Trial of Fidaxomicin for Prophylaxis of Clostridium difficile-associated Diarrhea in Adults Undergoing Hematopoietic Stem Cell Transplantation.
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Predicted Bezlotoxumab Exposure in Patients Who Have Received a Hematopoietic Stem Cell Transplant.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Percentage of Participants With Occurrence of CDAD From Start of Study Treatment up to 30 Days Post-treatment Follow-up. |
28.6; 30.8 | 0.2778 |
| SECONDARY Percentage of Participants With Occurrence of CDAD From Start of Study Treatment up to 60 Days Post-treatment. |
35.2; 35.8 | 0.4420 |
| SECONDARY Percentage of Participants With Occurrence of CDAD From Start of Study Treatment up to Day 70 of Study. |
29.2; 31.1 | 0.3091 |
Eligibility Criteria
Inclusion Criteria
- Male or female 18 years of age or older.
- Females of childbearing potential must be using an adequate and reliable method of contraception (e.g., abstinence, barrier with additional spermicide foam or jelly, intrauterine device, hormonal contraception). Males and females must agree to avoid conception during treatment and for four weeks following the end of study treatment.
- Is undergoing HSCT with planned Fluoroquinolone prophylaxis.
- Informed consent is provided.
Exclusion Criteria
- Ongoing active CDAD infection (as evidenced by clinical signs of diarrhea along with the presence of either toxin A and/or B [or their respective genes, tcdA and/or tcdB] of C. difficile in the stool) or current treatment for CDAD.
- Undergoing cord blood transplants.
- Has fulminant colitis, toxic megacolon, or ileus.
- A history of inflammatory bowel disease (ulcerative colitis or Crohn's disease).
- Women who are pregnant or are actively breast feeding (all women of childbearing potential must have a negative pregnancy test result prior to dosing study drug).
- Use of any drugs potentially useful in the treatment of CDAD (e.g. oral Vancomycin, Metronidazole, oral Bacitracin, Fusidic Acid, Rifaximin, and Nitazoxanide).
- Any other condition that, in the opinion of the investigator, would jeopardize the safety or rights of the participant in the study, would make it unlikely for the participant to complete the study, or would confound the results of the study.
- Participation in other clinical research studies utilizing an investigational agent within one month prior to screening and during the study treatment period.
Data sourced from ClinicalTrials.gov (NCT01691248) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.