Evaluate the Immunogenicity & Safety of the 2011-2012 Vaccine Against

Status Not yet recruiting

Clinical Trial Summary

The hypothesis proposed in this study is that the 2011-2012 Seasonal Influenza Vaccine (including H3N2 and H1N1 subtypes of serotype A strain over the serotype B) administered to 15ug (without adjuvant) via intramuscular in pregnant women will be safe and immunogenic.

Clinical Trial Description

Despite the fact that influenza vaccination of pregnant women is amply recommended, coverage of influenza vaccination is low. In general, there are few studies on safety of the vaccine to this group, particularly during the first three months of pregnancy or evaluating trivalent vaccines containing inactivated pandemic 2009 H1N1 virus. Studies are controversial regarding passage of maternal antibodies and protection to the newborn. The investigators propose to evaluate safety and immunogenicity of 2011-2012 seasonal trivalent influenza vaccine (Northern hemisphere)(containing an A/California/7/2009 (H1N1)-like virus; an A/Perth/16/2009 (H3N2)-like virus; a B/Brisbane/60/2008-like virus) produced by Sanofi Pasteur. Study design is a Phase II/III, two arm, non-randomized clinical trial. The investigators will recruit 120 pregnant women, 18 to 39 years of age, 14 to 34 week pregnant and 120 non-pregnant women. Trivalent influenza vaccine (0.5ml) will be administered IM in the deltoid zone. Participants will be observed for 30 min post-vaccination for acute adverse reactions and periodically during the 60 days post-vaccination for reactogenicity, adverse effects and severe adverse effects. Baseline and 28 day influenza antibodies will be measured by hemagglutination and microneutralization. Umbilical cord blood (10ml) will be drawn during delivery. Newborns will be followed monthly for growth and morbidity up to six months of age. If necessary, they will be referred for appropriate clinical care. Main outcome will be seroconversion and seroresponse at 28 days post vaccination. Results will be adjusted by study group and other relevant covariables.Safety will be analyzed according to type, severity and study group. ;

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention

Related Conditions & MeSH terms

Investigation or Care in A Nonpregnant Woman
Pregnancy

Clinical Trial Details

NCT number	NCT01577316
Study type	Interventional
Source	Instituto Nacional de Salud Publica, Mexico
Contact	Ferreyra-Reyes Leticia, MD
Phone	(52) 55 548710 00
Email	freyes.ld@gmail.com
Status	Not yet recruiting
Phase	Phase 2/Phase 3
Start date	April 2012
Completion date	December 2013

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Evaluate the Immunogenicity and Safety of the 2011-2012 Vaccine Against Seasonal Influenza on Pregnant Women — VACINFL2011

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms