N/A
N=46
Evaluation of the Immune Response to Clostridium Difficile in Adults With Clostridium Difficile Infection (CDI)
Infections, Clostridium Difficile
Bottom Line
View on ClinicalTrials.gov: NCT01716533 ↗Enrolled (actual)
46
Serious AEs
0.0%
Results posted
Jun 2019
Primary outcome: Primary: Serum Anti-toxin A and Anti-toxin B Antibody Concentrations at Day 14 — 2083.3; 3189.4; 32096.4 EU/mL — p=0.5746
Study Design & Population
- Study type
- Interventional
- Phase
- N/A
- Interventions
- Blood sampling (Procedure); Stool sample collection (Other)
- Age
- Adult, Older Adult · 18+ yrs
- Sex
- All
- Sponsor
- GlaxoSmithKline
- Primary completion
- Jun 2015
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Serum Anti-toxin A and Anti-toxin B Antibody Concentrations at Day 14 |
2083.3; 3189.4; 32096.4 | 0.5746 |
| PRIMARY Serum F2 C-terminal Anti-toxin B Antibody Concentrations |
149.3; 246.6; 10736.7 | 0.7124 |
| SECONDARY Serum Anti-toxin A and Anti-toxin B Antibody Concentrations at Day 0 and Day 72 |
1939.6; 1682.9; 19638.5; 4471.1; 3670.4; 64050.6 | — |
| SECONDARY Serum Neutralizing Anti-toxin A and Anti-toxin B Antibody Titers at Day 14 |
11.3; 2.3; 4.7; 2.7; 15.3; 1725.7 | — |
| SECONDARY Serum Neutralizing Anti-toxin A and Anti-toxin B Antibody Titers at Day 0, Within 10 Days After Recurrence and at Day 72 |
14.8; 1.5; 3.2; 12.2; 1.0; 1.0 | — |
| SECONDARY Number of Subjects With Clostridium Difficile Infection (CDI) Recurrence |
7; 0; 0; 0 | — |
| SECONDARY CDI Initial Episodes Severity Characteristics, in All Subjects |
5.0; 7.0; 16.0; 5.0; 8.0; 10.5 | — |
| SECONDARY Number of Subjects With Initial CDI Episode by Severity, in All Subjects |
1; 1; 1; 0; 2; 3 | — |
| SECONDARY Number of Subjects With CDI Recurrence by Severity, in Those Subjects Who Recur |
7; 0 | — |
| SECONDARY Number of Subjects With Failure of Antibiotic Treatment |
0; 2; 1; 0; 1; 0 | — |
| SECONDARY Number of Subjects With Risk Factors Associated With the Initial CDI Episode |
5; 18; 3; 2; 2; 6 | — |
| SECONDARY Number of Subjects With Risk Factors Associated With the CDI Recurrence |
6; 1; 0; 0; 0; 0 | — |
Summary
This study aims to 1) evaluate the C. difficile-specific immune response in CDI patients and 2) explore the difference in immune response between the patients with CDI recurrence and those with a sustained clinical response.
Eligibility Criteria
Inclusion Criteria
- Subjects who the investigator believes that they can and will comply with the requirements of the protocol or/ and subjects who can receive assistance from his/ her legally acceptable representative (LAR) or a designate who can and will comply with the requirements of the protocol.
- A male or female aged 18 years or older at the time of enrolment.
- Written informed consent obtained from the subject/ LAR of the subject.
- A reasonable prognosis of survival during the study period as judged by the investigator.
- Outpatients, emergency room and/ or hospitalized subjects diagnosed with CDI for which the symptoms started maximum 14 days prior to study enrolment.
- Subjects who receive or plan to receive antibiotic treatment to treat the CDI episode.
Exclusion Criteria
- Concurrently participating or planning to participate in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product.
- Previous CDI episode within the previous 6 months before study enrolment (except for up to ~25% of the subjects).
- Chronic diarrheal illness such as, but not limited to, ulcerative colitis or Crohn's disease.
- Planned surgery for CDI within 24 hours after study entry.
- Previous vaccination against Clostridium difficile.
- Having received a Clostridium difficile monoclonal antibody product(s) within the previous 3 months or planned administration during the study period.
- Administration of immunoglobulins within the previous 3 months or planned administration during the study period.
- Subject having any other condition that, in the opinion of the investigator, would jeopardize the safety or rights of the subject participating in the study, would make it unlikely for the subject to complete the study, or would confound the results of the study.
- Chronic administration (defined as more than 14 days in total) of immunosuppressants or other immune-modifying drugs within the previous 6 months.
- Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history.
- Family history of congenital or hereditary immunodeficiency.
- Major congenital defects.
Data sourced from ClinicalTrials.gov (NCT01716533). 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.