| E.1 Medical condition or disease under investigation |
| E.1.1 | Medical condition(s) being investigated |
| Meningitis, epiglottitis, pneumonia, arthritis caused by Haemophilus influenzae type b. |
|
| E.1.1.1 | Medical condition in easily understood language |
| Meningitis, epiglottitis, pneumonia, arthritis caused by Haemophilus influenzae type b. |
|
| E.1.1.2 | Therapeutic area | Diseases [C] - Bacterial Infections and Mycoses [C01] |
| MedDRA Classification |
| E.1.3 | Condition being studied is a rare disease | No |
| E.2 Objective of the trial |
| E.2.1 | Main objective of the trial |
Immunogenicity Objective:
To assess anti- PRP antibodies persistency in children participating in previous V37_07E1 trial, approximately 4 years after booster vaccination with either Hib-CRM197 or Hib-TT. |
|
| E.2.2 | Secondary objectives of the trial |
|
| E.2.3 | Trial contains a sub-study | No |
| E.3 | Principal inclusion criteria |
1. children previously enrolled in V37_07E1 study and who received the appropriate vaccination;
2. children whose parent(s) or legal guardian(s) have given written consent after the nature of the study has been explained according to local regulatory requirements |
|
| E.4 | Principal exclusion criteria |
1. any confirmed or suspected current immunosuppressive or immunodeficient condition since the end of V37_07E1 study, based on medical history and physical examination (no laboratory testing required);
2. treatment with corticosteroids or other immunosuppressive/immunostimulant drugs as defined below:
-chronic use of oral and parenteral immunosuppressants (>/= 15 days of use) or other immune-modifying drugs within 60 days prior to the blood sampling (short term usage of topic, inhaled and/or intranasal corticosteroids is allowed)
-receipt of immunostimulants within 60 days prior to Visit 1
3. administration of immunoglobulines and/or any blood products up to 3 months before enrollment;
4. use of any investigational or non-registered product (drug or vaccine) within 30 days preceding the blood sampling.
5. any condition, which, in the opinion of the investigator, might be a contraindication to the execution of the blood draw. |
|
| E.5 End points |
| E.5.1 | Primary end point(s) |
Immunogenicity Endpoint:
Ratio of Anti-PRP antibody geometric mean concentrations (GMCs), approximately four years after booster vaccination by vaccine group |
|
| E.5.1.1 | Timepoint(s) of evaluation of this end point |
| At Day 1 (4 years post booster dose administered in study V37_07E1) |
|
| E.5.2 | Secondary end point(s) |
|
| E.5.2.1 | Timepoint(s) of evaluation of this end point |
|
| E.6 and E.7 Scope of the trial |
| E.6 | Scope of the trial |
| E.6.1 | Diagnosis | No |
| E.6.2 | Prophylaxis | Yes |
| E.6.3 | Therapy | No |
| E.6.4 | Safety | No |
| E.6.5 | Efficacy | No |
| E.6.6 | Pharmacokinetic | No |
| E.6.7 | Pharmacodynamic | No |
| E.6.8 | Bioequivalence | No |
| E.6.9 | Dose response | No |
| E.6.10 | Pharmacogenetic | No |
| E.6.11 | Pharmacogenomic | No |
| E.6.12 | Pharmacoeconomic | No |
| E.6.13 | Others | Yes |
| E.6.13.1 | Other scope of the trial description |
|
| E.7 | Trial type and phase |
| E.7.1 | Human pharmacology (Phase I) | No |
| E.7.1.1 | First administration to humans | No |
| E.7.1.2 | Bioequivalence study | No |
| E.7.1.3 | Other | No |
| E.7.1.3.1 | Other trial type description | |
| E.7.2 | Therapeutic exploratory (Phase II) | No |
| E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
| E.7.4 | Therapeutic use (Phase IV) | No |
| E.8 Design of the trial |
| E.8.1 | Controlled | Yes |
| E.8.1.1 | Randomised | No |
| E.8.1.2 | Open | Yes |
| E.8.1.3 | Single blind | No |
| E.8.1.4 | Double blind | No |
| E.8.1.5 | Parallel group | No |
| E.8.1.6 | Cross over | No |
| E.8.1.7 | Other | No |
| E.8.2 | Comparator of controlled trial |
| E.8.2.1 | Other medicinal product(s) | Yes |
| E.8.2.2 | Placebo | No |
| E.8.2.3 | Other | No |
| E.8.2.4 | Number of treatment arms in the trial | 2 |
| E.8.3 |
Will this trial be conducted at a single site globally?
| Yes |
| E.8.4 | Will this trial be conducted at multiple sites globally? | No |
| E.8.6 Trial involving sites outside the EEA |
| E.8.6.2 | Trial being conducted completely outside of the EEA | Yes |
| E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |
|
| E.8.7 | Trial has a data monitoring committee | No |
| E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
| EOT : Evaluation of the primary immunogenicity objectives requires the testing of biological samples from the study subjects, which can only be completed after all samples are collected. The last samples for the analysis of the primary objectives will be taken at Visit 1. For the purpose of this protocol, end of study is defined as the completion of the testing of such biological samples, to be achieved no later than 8 months after collection of the last biological sample Visit 1. |
|
| E.8.9 Initial estimate of the duration of the trial |
| E.8.9.2 | In all countries concerned by the trial days | 1 |