Phase III Randomized, Double-Blind, Placebo-Controlled Study of Acellular and Whole-Cell Pertussis Vaccines
Summary
OBJECTIVES: I. Compare the efficacy of 2 acellular pertussis vaccines vs. whole-cell pertussis vaccine vs. placebo in infants living in Italy. II. Compare the relative protection of each of the acellular vaccines vs. the whole-cell vaccine vs. laboratory-confirmed pertussis. III. Assess the relative efficacy of the acellular vaccines with respect to one another. IV. Assess the immunogenicity of acellular vs. whole-cell vaccines in the study population. V. Compare the frequency of adverse events with each vaccine. VI. Compare the frequency of adverse events attributable to the pertussis component in each of the 3 vaccines. VII. Assess alternative laboratory diagnostic techniques for pertussis in estimating vaccine efficacy, i.e., mucosal immune response, DNA probes, or antibody response to other components of the organism. VIII. Assess the relative efficacy estimates of each vaccine, using clinical criteria to compare the relative incidence rates in each vaccine group.
Timeline
- Start
- 1992-09
- Primary completion
- —
- Completion
- —
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | diphtheria-tetanus vaccine | Vaccine | — | Intramuscular |
| Subject | diphtheria-tetanus-pertussis vaccine containing whole-cell pertussis | Vaccine | — | Intramuscular |