E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Prophylaxis against Group B Streptococcus infection. |
|
E.1.1.1 | Medical condition in easily understood language |
|
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 |
To evaluate placental transfer of anti-Group B strep. CPS antibodies against vaccine serotypes among infants born to vaccine and placebo injected mothers. |
|
E.2.2 | Secondary objectives of the trial |
Pregnant Woman:
To evaluate anti-Group B strep. CPS antibodies against vaccine serotypes in all subjects 30 days post injection.
To evaluate the kinetics of anti-Group B strep. CPS antibodies against vaccine serotypes in all subjects at baseline, 30 days post vaccination, delivery and 3 months after delivery.
Infant:
To evaluate anti-Group B strep. CPS antibodies against vaccine serotypes in infants born to vaccinated subjects at birth and 3 months of age.
To evaluate the response to routine anti-diphtheria vaccination among infants born to vaccine and placebo vaccinated subjects at 1 month after the third routine
vaccination.
Safety objective:
Pregnant Woman:
To evaluate safety and tolerability of a trivalent Group B strep. vaccine (5/5/5 micro gram of each glycoconjugate).
Infants:
To evaluate outcome of infants born to vaccine and placebo recipients. |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1) Healthy pregnant women 18-40 years of age at 24-35 weeks of gestation
2) Individuals who have given written consent after the nature of the study has been explained according to local regulatory requirements.
3) Individuals in good health as determined by the outcome of medical history, physical examination and clinical judgment of the investigator.
4) Individuals who will be available for all scheduled visits (i.e. not planning to leave the area before the end of the study period). |
|
E.4 | Principal exclusion criteria |
1) Individuals who are unwilling and/or unable to give written informed consent to participate in the study.
2) Individuals with a history of severe allergic reactions after previous vaccinations such as anaphylactic shock, asthma, urticaria, or other allergic reaction or hypersensitivity to any vaccine component.
3) Individuals with any known or suspected impairment/alteration of immune function, either congenital or resulting from:
• receipt of immunosuppressive therapy within 30 days prior to enrollment (any systemic corticosteroid administered for more than 5 days, or in a daily dose > 15 mg/day prednisone or equivalent during any of 30 days prior to enrollment, or cancer chemotherapy, Topical corticosteroids are allowed)
• receipt of immunostimulants
• receipt of parenteral immunoglobulin preparation, blood products, and /or plasma derivatives within 12 weeks prior to enrollment and for the full length of the study
Note: Anti-D Immunoglobulins given for Anti-D prophylaxis are allowed.
4) Individuals characterized as “high risk” pregnancies at investigator discretion, such as those who have
gestational diabetes
pre-eclampsia/eclampsia,
women at risk of pre-term labor (except positivity for vaginal Group B strep.)
History of previous pregnancy complications including delivery of pre-term infant
History of still-birth, late abortions and children with congenital anomalies
5) Individuals who receive any other investigational agent or investigational intervention during the course of the study.
6) Individuals with acute infection including oral temperature ≥ 38°C are temporarily excluded. They may be enrolled once the infection has resolved (as judged by investigator).
7) HIV positive by history
8) Individuals reporting any known or suspected serious acute, chronic or progressive disease (e.g., any history of neoplasm, malignancy, including lymphoproliferative disorder, diabetes, cardiac disease, malnutrition, renal failure, autoimmune disease, HBV or HCV, blood disorders).
Note: Malignancies, highly likely to having been cured at the investigators discretion are allowed. (e.g. no relapse since 5 years post last malignancy specific treatment)
9) Individuals with bleeding diathesis, or any condition that may be associated with a prolonged bleeding time.
10) Individuals with behavioral or cognitive impairment or psychiatric disease that, in the opinion of the investigator, may interfere with the subject's ability to participate in the study (e.g. who are not able to comprehend or to follow all required study procedures for the whole period of the study).
11) Individuals with any progressive or severe neurologic disorder, seizure disorder, epilepsy or Guillain-Barré syndrome.
12) Individuals with history or any illness that, in the opinion of the investigator, might pose additional risk to subjects due to participation in the study.
13) Individuals who are part of study personnel or close family members conducting this study |
|
E.5 End points |
E.5.1 | Primary end point(s) |
Transfer rate (%) and concentration (μg/mL) of maternal anti-Group B strep. CPS antibody that is transferred to the newborn, calculated as the ratio between cord blood antibody level (μg/mL) and maternal antibody level (μg/mL) at time of delivery, per each serotype.
|
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
|
E.5.2 | Secondary end point(s) |
Pregnant Women:
1) GMC and GMR (i.e. GMC at different time points over baseline) of anti- Group B strep. CPS antibody at study day 1 (GMC only), study day 31, at delivery (GMR only), and at 3 months post-delivery.
Infants:
2) GMC of anti- Group B strep. CPS antibody in infants at 3 months of age.
3) GMC of anti-diphtheria antibodies in sera of infants collected at 1 month after the last routine infant immunization.
Safety Endpoints:
4) Number of local and systemic reactions reported during 1 to 7 days after vaccination.
5) All adverse events occuring throughout the study for pregnant women and for infants at 3months of age and 1month after routine vaccination. |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
1) day 1, day 31, 3 months post delivery.
2) at 3 months of age.
3) 1 Month after last routine infant immunization
4) 1 to 7 Days after vaccination.
5) throughouth the study fro pregnant women and for infants at 3 months of age and 1t 1 month after routine vaccination |
|
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 | Yes |
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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
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 | Yes |
E.8.1.7.1 | Other trial design description |
|
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
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?
| No |
E.8.4 | Will this trial be conducted at multiple sites globally? | Yes |
E.8.6 Trial involving sites outside the EEA |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
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
|
last subject last visit 17 OCt 13 |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.2 | In all countries concerned by the trial months | 9 |
E.8.9.2 | In all countries concerned by the trial days | 0 |