Back to results

Long-Term Follow-up of Children for a 2-Year Period to Confirm the Safety and Immunogenicity of GSK 257049 Vaccine

Primary Purpose

Malaria

Status

Completed

Phase

Phase 2

Locations

Mozambique

Study Type

Interventional

Intervention

GSK Biologicals' candidate Plasmodium falciparum malaria vaccine 257049

Engerix™-B

Hiberix®

Prevnar™

sulfadoxine-pyrimethamine

amodiaquine

About this trial

This is an interventional prevention trial for Malaria

Eligibility Criteria

33 Months - 69 Months (Child)All SexesAccepts Healthy Volunteers

Inclusion criteria: Completion of Visit 7, Month 21 of 104297 (NCT= NCT00197041). Written informed consent obtained from the parent(s) or guardian(s) of the subject Exclusion criteria: Planned use of any investigational or non-registered drug or vaccine during the study period. Simultaneous participation in any other clinical trial

Sites / Locations

GSK Investigational Site

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm 7

Arm 8

Arm Type

Experimental

Active Comparator

Arm Label

Cohort 1-RTS,S/AS02A <24M Group

Cohort 1-RTS,S/AS02A ≥24M Group

Cohort 2-RTS,S/AS02A <24M Group

Cohort 2-RTS,S/AS02A ≥24M Group

Cohort 1-Prevnar-Hiberix <24M Group

Cohort 1-Engerix-B ≥24M Group

Cohort 2-Prevnar- Hiberix <24M Group

Cohort 2-Engerix-B ≥24M Group

Arm Description

Subjects, male and female, aged 12 to 24 months at first vaccination, were administered 3 doses of RTS,S/AS02A (GSK 257049) vaccine at Months 0, 1 and 2 in the NCT00197041 Study. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study. Subjects in this group are part of the Cohort 1 of the study, which was followed for analysis of malaria infection.

Subjects, male and female, aged between 24 and 48 months at first vaccination, were administered 3 doses of RTS,S/AS02A (GSK 257049) vaccine at Months 0, 1 and 2 in the NCT00197041 Study. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study. Subjects in this group are part of the Cohort 1 of the study, which was followed for analysis of malaria infection.

Subjects, male and female, aged 12 to 24 months at first vaccination, were administered 3 doses of RTS,S/AS02A (GSK 257049) vaccine at Months 0, 1 and 2 in the NCT00197041 Study. Subjects in this group are part of the Cohort 2 of the study, which was followed for analysis of malaria disease. As Cohort 2 subjects, subjects in this group also received as part of the Primary NCT00197041 Study one dose of sulfadoxine-pyrimethamine and amodiaquine per day for 3 days 4 weeks prior to onset of surveillance, so as to clear any parasitemia. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study.

Subjects, male and female, aged between 24 and 48 months at first vaccination, were administered 3 doses of RTS,S/AS02A (GSK 257049) vaccine at Months 0, 1 and 2 of the NCT00197041 Study. Subjects in this group are part of the Cohort 2 of the study, which was followed for analysis of malaria disease. As Cohort 2 subjects, subjects in this group also received as part of the Primary NCT00197041 Study one dose of sulfadoxine-pyrimethamine and amodiaquine per day for 3 days 4 weeks prior to onset of surveillance, so as to clear any parasitemia. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study.

Subjects, male and female, aged 12 to 24 months at first vaccination, were administered 2 doses of Prevnar™ vaccine at Months 0 and 2 and 1 dose of Hiberix® vaccine at Month 1 in the Primary NCT00197041 Study. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study. Subjects in this group are part of the Cohort 1 of the study, which was followed for analysis of malaria infection.

Subjects, male and female, aged between 24 and 48 months at first vaccination, were administered 3 doses of Engerix®-B vaccine at Months 0, 1 and 2 in the Primary NCT00197041 Study. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study. Subjects in this group are part of the Cohort 1 of the study, which was followed for analysis of malaria infection.

Subjects, male and female, aged 12 to 24 months at first vaccination, were administered 2 doses of Prevnar™ vaccine at Months 0 and 2 and 1 dose of Hiberix® vaccine at Month 1 in the Primary NCT00197041 Study. Subjects in this group are part of the Cohort 2 of the study, which was followed for analysis of malaria disease. As Cohort 2 subjects, subjects in this group also received as part of the Primary NCT00197041 Study one dose of sulfadoxine-pyrimethamine and amodiaquine per day for 3 days 4 weeks prior to onset of surveillance, so as to clear any parasitemia. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study.

Subjects, male and female, aged between 24 and 48 months at first vaccination, were administered 3 doses of Engerix®-B vaccine at Months 0, 1 and 2 in the Primary NCT00197041 Study. Subjects in this group are part of the Cohort 2 of the study, which was followed for analysis of malaria disease. As Cohort 2 subjects, subjects in this group also received as part of the Primary NCT00197041 Study one dose of sulfadoxine-pyrimethamine and amodiaquine per day for 3 days 4 weeks prior to onset of surveillance, so as to clear any parasitemia. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study.

Outcomes

Primary Outcome Measures

Number of Subjects With Serious Adverse Events (SAEs)

Serious adverse events (SAEs) assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

Secondary Outcome Measures

Anti-circumsporozoite Protein (CS) Antibody Concentrations.

Concentrations for anti-CS antibodies are presented as Geometric Mean Concentrations (GMCs), expressed in Enzyme-Linked Immunosorbent Assay (ELISA) units per milliliter (EL.U/mL). The cut-off of the assay was the seropositivity cut-off of 0.5 EL.U/mL. Subjects were pooled across age ranges for this outcome measure.

Anti-hepatitis B (HBs) Antibody Concentrations.

Concentrations are presented as geometric mean concentrations (GMCs), expressed in milli-international units per milliliter (mIU/mL). Anti-HBs antibody concentration levels were measured in blood samples from Cohort 2 only.

Time to First or Only Clinical Episode of Symptomatic Plasmodium Falciparum Malaria Infection (PFMI) of Primary Case Definition

Malaria infection by Plasmodium falciparum was detected by passive case detection. A symptomatic PFMI episode of Primary Case Definition (PCD) was defined as the presence of P. falciparum asexual parasitaemia above 2500 per µL on Giemsa stained thick blood films accompanied by fever (axillary temperature equal or above 37.5 degrees Celsius at the time of presentation) occurring in an unwell child brought for treatment to a healthcare facility. The time to first or only episode of symptomatic PFMI is expressed in terms of rate of first PFMI (RPFMI), that is, the number of PFMI events reported (n) over the period elapsed until the PFMI event occurred (i.e. events per Persons Year at Risk [PYAR]) for each group. Analysis for this outcome was solely performed on Cohort 1 subjects, with groups pooled across age ranges.

Time to First or Only Episode of Symptomatic Plasmodium Falciparum Malaria Infection (PFMI) of Secondary Case Definition 1

PFMI was detected by passive case detection. Symptomatic PFMI of Secondary Case Definition (SCD) 1 was defined as the presence of P. falciparum asexual parasitaemia (any level if parasitemia) on Giemsa stained thick blood films accompanied by fever (axillary temperature equal or above 37.5 degrees Celsius) in an unwell child brought for treatment. The time to first or only episode of symptomatic PFMI is expressed in terms of rate of first PFMI (RPFMI), that is, the number of PFMI events reported (n) over the period elapsed until the PFMI event occurred (i.e. events per Persons Year at Risk [PYAR]) for each group. Analysis for this outcome was solely performed on Cohort 1 subjects, with groups pooled across age ranges.

Time to First or Only Episode of Symptomatic Plasmodium Falciparum Malaria Infection (PFMI) of Secondary Case Definition 2

PFMI was detected by passive case detection. Symptomatic PFMI of Secondary Case Definition (SCD) 2 was defined as the presence of P. falciparum asexual parasitaemia (any level if parasitemia) on Giemsa stained thick blood films in an unwell child brought for treatment with a history of fever (axillary temperature equal or above 37.5 degrees Celsius) within 24 hours or documented fever. The time to first or only episode of symptomatic PFMI is expressed in terms of rate of first PFMI (RPFMI), that is, the number of PFMI events reported (n) over the period elapsed until the PFMI event occurred (i.e. events per Persons Year at Risk [PYAR]) for each group. Analysis for this outcome was performed on Cohort 1 subjects, with groups pooled across age ranges.

Time to First or Only Episode of Symptomatic Plasmodium Falciparum Malaria Infection (PFMI) of Secondary Case Definition 3

PFMI was detected by passive case detection. Symptomatic PFMI of Secondary Case Definition (SCD) 3 was defined as the presence of P. falciparum asexual parasitaemia above 15000 per microliter (µL) on Giemsa stained thick blood films accompanied by fever (axillary temperature equal or above 37.5 degrees Celsius) in an unwell child brought for treatment to a healthcare facility. The time to first or only episode of symptomatic PFMI is expressed in terms of rate of first PFMI (RPFMI), that is, the number of PFMI events reported (n) over the period elapsed until the PFMI event occurred (i.e. events per Persons Year at Risk [PYAR]) for each group. Analysis for this outcome was performed on Cohort 1 subjects solely, with groups pooled across age ranges.

Number of Primary Case Definition Clinical Episodes of Symptomatic Plasmodium Falciparum Malaria Infection (PFMI)

PFMI was detected by passive case detection. A symptomatic PFMI episode of Primary Case Definition (PCD) was defined as the presence of P. falciparum asexual parasitaemia above 2500 per µL on Giemsa stained thick blood films accompanied by fever (axillary temperature equal or above 37.5 degrees Celsius at the time of presentation) occurring in an unwell child brought for treatment to a healthcare facility. The number of PFMI episodes (EPFMI) per person-year (pyr) was tabulated, using as unit EPFMI episode per pyr. Analysis for this outcome was performed on Cohort 1 subjects solely, with groups pooled across age ranges.

Number of Subjects With Anemia.

Anemia was indicated by a hematocrit level (HL) below (<) 25%. The numbers of subjects with HL below (<) and above or equal (≥) 25 %, and with missing HL results were tabulated. In the tabulation below, the number of subjects falling into the "HL ≥25%" category corresponds to the number of subjects with anemia as asked per outcome. Analysis for this outcome was performed on Cohort 1 subjects solely, with groups pooled across age ranges.

Number of Subjects Prevalent for Plasmodium Falciparum (P. Falciparum) Parasitemia

Subjects prevalent for P. falciparum parasitemia were defined as subjects with the presence of P. falciparum asexual parasitemia above 0 per microliter (µL) on Giemsa stained thick blood films.Analysis for this outcome was performed on Cohort 1 subjects solely, with groups pooled across age ranges.

Full Information

NCT ID

NCT00323622

First Posted

September 8, 2005

Last Updated

October 27, 2016

Sponsor

GlaxoSmithKline

1. Study Identification

Unique Protocol Identification Number

NCT00323622

Brief Title

Long-Term Follow-up of Children for a 2-Year Period to Confirm the Safety and Immunogenicity of GSK 257049 Vaccine

Official Title

An Open Study for a 2-year Period to Confirm the Safety and Immunogenicity of the Candidate Malaria Vaccine RTS,S/AS02A in Mozambican Children Aged 1 to 4 Years at the Time of First Vaccine Dose.

Study Type

Interventional

2. Study Status

Record Verification Date

October 2016

Overall Recruitment Status

Completed

Study Start Date

April 2005 (undefined)

Primary Completion Date

May 2007 (Actual)

Study Completion Date

May 2007 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title

Sponsor

Name of the Sponsor

GlaxoSmithKline

4. Oversight

5. Study Description

Brief Summary

The RTS,S/AS02A vaccine (or GSK 257049 vaccine), GSK Biologicals' candidate Plasmodium falciparum (P. falciparum) malaria vaccine is being developed for the routine immunization of infants and children living in malaria endemic areas. The vaccine would offer protection against malaria disease due to the parasite P. falciparum. The vaccine would also provide protection against infection with hepatitis B virus (HBV). This phase IIb trial is being carried out following the demonstration of efficacy of the candidate malaria vaccine in children in Mozambique: there, the vaccine demonstrated approximately 30% efficacy against clinical episodes of malaria and approximately 58% efficacy against severe malaria disease. In this study, the children from Mozambique (NCT= NCT00197041) are followed-up to assess the safety, immunogenicity and efficacy of the candidate malaria vaccine for a two year period commencing 21 months after Dose 1. This protocol posting deals with objectives & outcome measures of the extension phase at year 2. During this extension study, no new subjects will be recruited and no vaccine will be administered. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study

Malaria

7. Study Design

Primary Purpose

Prevention

Study Phase

Phase 2

Interventional Study Model

Parallel Assignment

Masking

None (Open Label)

Allocation

Randomized

Enrollment

1737 (Actual)

8. Arms, Groups, and Interventions

Arm Title

Cohort 1-RTS,S/AS02A <24M Group

Arm Type

Experimental

Arm Description

Arm Title

Cohort 1-RTS,S/AS02A ≥24M Group

Arm Type

Experimental

Arm Description

Arm Title

Cohort 2-RTS,S/AS02A <24M Group

Arm Type

Experimental

Arm Description

Arm Title

Cohort 2-RTS,S/AS02A ≥24M Group

Arm Type

Experimental

Arm Description

Arm Title

Cohort 1-Prevnar-Hiberix <24M Group

Arm Type

Active Comparator

Arm Description

Subjects, male and female, aged 12 to 24 months at first vaccination, were administered 2 doses of Prevnar™ vaccine at Months 0 and 2 and 1 dose of Hiberix® vaccine at Month 1 in the Primary NCT00197041 Study. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study. Subjects in this group are part of the Cohort 1 of the study, which was followed for analysis of malaria infection.

Arm Title

Cohort 1-Engerix-B ≥24M Group

Arm Type

Active Comparator

Arm Description

Subjects, male and female, aged between 24 and 48 months at first vaccination, were administered 3 doses of Engerix®-B vaccine at Months 0, 1 and 2 in the Primary NCT00197041 Study. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study. Subjects in this group are part of the Cohort 1 of the study, which was followed for analysis of malaria infection.

Arm Title

Cohort 2-Prevnar- Hiberix <24M Group

Arm Type

Active Comparator

Arm Description

Subjects, male and female, aged 12 to 24 months at first vaccination, were administered 2 doses of Prevnar™ vaccine at Months 0 and 2 and 1 dose of Hiberix® vaccine at Month 1 in the Primary NCT00197041 Study. Subjects in this group are part of the Cohort 2 of the study, which was followed for analysis of malaria disease. As Cohort 2 subjects, subjects in this group also received as part of the Primary NCT00197041 Study one dose of sulfadoxine-pyrimethamine and amodiaquine per day for 3 days 4 weeks prior to onset of surveillance, so as to clear any parasitemia. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study.

Arm Title

Cohort 2-Engerix-B ≥24M Group

Arm Type

Active Comparator

Arm Description

Subjects, male and female, aged between 24 and 48 months at first vaccination, were administered 3 doses of Engerix®-B vaccine at Months 0, 1 and 2 in the Primary NCT00197041 Study. Subjects in this group are part of the Cohort 2 of the study, which was followed for analysis of malaria disease. As Cohort 2 subjects, subjects in this group also received as part of the Primary NCT00197041 Study one dose of sulfadoxine-pyrimethamine and amodiaquine per day for 3 days 4 weeks prior to onset of surveillance, so as to clear any parasitemia. No additional dose of vaccine or drug was administered during this open follow-up NCT00323622 study.

Intervention Type

Biological

Intervention Name(s)

GSK Biologicals' candidate Plasmodium falciparum malaria vaccine 257049

Other Intervention Name(s)

RTS, S/AS02A vaccine

Intervention Description

IM injection in the deltoid muscle

Intervention Type

Biological

Intervention Name(s)

Engerix™-B

Intervention Description

IM injection in the deltoid muscle

Intervention Type

Biological

Intervention Name(s)

Hiberix®

Intervention Description

IM injection in the deltoid muscle

Intervention Type

Biological

Intervention Name(s)

Prevnar™

Intervention Description

IM injection in the deltoid muscle

Intervention Type

Drug

Intervention Name(s)

sulfadoxine-pyrimethamine

Intervention Description

1 dose orally per day for 3 days, 4 weeks prior to onset of surveillance

Intervention Type

Drug

Intervention Name(s)

amodiaquine

Intervention Description

1 dose orally per day for 3 days, 4 weeks prior to onset of surveillance

Primary Outcome Measure Information:

Title

Number of Subjects With Serious Adverse Events (SAEs)

Description

Time Frame

Throughout the entire study period: from Month 21 to Month 45 (Month 0 = administration of Dose 1 of RTS,S/AS02A or comparator vaccine in the NCT00197041 study).

Secondary Outcome Measure Information:

Title

Anti-circumsporozoite Protein (CS) Antibody Concentrations.

Description

Time Frame

At Months 33 and 45 (Month 0 = administration of Dose 1 of RTS,S/AS02A or comparator vaccine in the NCT00197041 study).

Title

Anti-hepatitis B (HBs) Antibody Concentrations.

Description

Time Frame

At Months 33 and 45 (Month 0 = administration of Dose 1 of RTS,S/AS02A or comparator vaccine in the NCT00197041 study).

Title

Time to First or Only Clinical Episode of Symptomatic Plasmodium Falciparum Malaria Infection (PFMI) of Primary Case Definition

Description

Time Frame

From Month 21 to Month 33 (M21-33), and from Month 33 to Month 45 (M33-45). Month 0 = administration of Dose 1 of RTS,S/AS02A or comparator vaccine in study NCT00197041

Title

Time to First or Only Episode of Symptomatic Plasmodium Falciparum Malaria Infection (PFMI) of Secondary Case Definition 1

Description

Time Frame

From Month 21 to Month 33 (M21-33), and from Month 33 to Month 45 (M33-45). Month 0 = administration of Dose 1 of RTS,S/AS02A or comparator vaccine in study NCT00197041

Title

Time to First or Only Episode of Symptomatic Plasmodium Falciparum Malaria Infection (PFMI) of Secondary Case Definition 2

Description

Time Frame

From Month 21 to Month 33 (M21-33), and from Month 33 to Month 45 (M33-45). Month 0 = administration of Dose 1 of RTS,S/AS02A or comparator vaccine in study NCT00197041

Title

Time to First or Only Episode of Symptomatic Plasmodium Falciparum Malaria Infection (PFMI) of Secondary Case Definition 3

Description

Time Frame

From Month 21 to Month 33 (M21-33), and from Month 33 to Month 45 (M33-45). Month 0 = administration of Dose 1 of RTS,S/AS02A or comparator vaccine in study NCT00197041

Title

Number of Primary Case Definition Clinical Episodes of Symptomatic Plasmodium Falciparum Malaria Infection (PFMI)

Description

Time Frame

From Month 21 to Month 33 (M21-33), and from Month 33 to Month 45 (M33-45). Month 0 = administration of Dose 1 of RTS,S/AS02A or comparator vaccine in study NCT00197041

Title

Number of Subjects With Anemia.

Description

Time Frame

At Months 33 and 45 (Month 0 = administration of Dose 1 of RTS,S/AS02A or comparator vaccine in the NCT00197041 study).

Title

Number of Subjects Prevalent for Plasmodium Falciparum (P. Falciparum) Parasitemia

Description

Time Frame

At Months 33 (M33) and 45 (M45) (Month 0 = administration of Dose 1 of RTS,S/AS02A or comparator vaccine in the NCT00197041 study).

10. Eligibility

Sex

All

Minimum Age & Unit of Time

33 Months

Maximum Age & Unit of Time

69 Months

Accepts Healthy Volunteers

Eligibility Criteria

Overall Study Officials:

First Name & Middle Initial & Last Name & Degree

GSK Clinical Trials

Organizational Affiliation

GlaxoSmithKline

Official's Role

Study Director

Facility Information:

Facility Name

GSK Investigational Site

City

Maputo

Country

Mozambique

12. IPD Sharing Statement

Plan to Share IPD

Yes

IPD Sharing Plan Description

Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Citations:

PubMed Identifier

16338450

Citation

Alonso PL, Sacarlal J, Aponte JJ, Leach A, Macete E, Aide P, Sigauque B, Milman J, Mandomando I, Bassat Q, Guinovart C, Espasa M, Corachan S, Lievens M, Navia MM, Dubois MC, Menendez C, Dubovsky F, Cohen J, Thompson R, Ballou WR. Duration of protection with RTS,S/AS02A malaria vaccine in prevention of Plasmodium falciparum disease in Mozambican children: single-blind extended follow-up of a randomised controlled trial. Lancet. 2005 Dec 10;366(9502):2012-8. doi: 10.1016/S0140-6736(05)67669-6.

Results Reference

background

Citation

Aponte et al. A 4 years follow-up of the safety, immunogenicity and efficacy of the candidate malaria vaccine RTS,S/AS02A in children vaccinated at aged 1 to 4 years in a malaria-endemic region of Mozambique. Abstract presented at the 56th Annual Meeting ASTMH, Philadelphia, PA, USA, 05-07 November 2007.

Results Reference

background

PubMed Identifier

19569964

Citation

Sacarlal J, Aide P, Aponte JJ, Renom M, Leach A, Mandomando I, Lievens M, Bassat Q, Lafuente S, Macete E, Vekemans J, Guinovart C, Sigauque B, Sillman M, Milman J, Dubois MC, Demoitie MA, Thonnard J, Menendez C, Ballou WR, Cohen J, Alonso PL. Long-term safety and efficacy of the RTS,S/AS02A malaria vaccine in Mozambican children. J Infect Dis. 2009 Aug 1;200(3):329-36. doi: 10.1086/600119.

Results Reference

background

PubMed Identifier

21443960

Citation

Aide P, Dobano C, Sacarlal J, Aponte JJ, Mandomando I, Guinovart C, Bassat Q, Renom M, Puyol L, Macete E, Herreros E, Leach A, Dubois MC, Demoitie MA, Lievens M, Vekemans J, Loucq C, Ballou WR, Cohen J, Alonso PL. Four year immunogenicity of the RTS,S/AS02(A) malaria vaccine in Mozambican children during a phase IIb trial. Vaccine. 2011 Aug 11;29(35):6059-67. doi: 10.1016/j.vaccine.2011.03.041. Epub 2011 Apr 7.

Results Reference

derived

Links:

URL

https://www.clinicalstudydatarequest.com

Description

Researchers can use this site to request access to anonymised patient level data and/or supporting documents from clinical studies to conduct further research.

Available IPD and Supporting Information:

Available IPD/Information Type

Informed Consent Form

Available IPD/Information URL

https://www.clinicalstudydatarequest.com

Available IPD/Information Identifier

104297

Available IPD/Information Comments

For additional information about this study please refer to the GSK Clinical Study Register

Available IPD/Information Type

Statistical Analysis Plan

Available IPD/Information URL

https://www.clinicalstudydatarequest.com

Available IPD/Information Identifier

104297

Available IPD/Information Comments

For additional information about this study please refer to the GSK Clinical Study Register

Available IPD/Information Type

Clinical Study Report

Available IPD/Information URL

https://www.clinicalstudydatarequest.com

Available IPD/Information Identifier

104297

Available IPD/Information Comments

For additional information about this study please refer to the GSK Clinical Study Register

Available IPD/Information Type

Study Protocol

Available IPD/Information URL

https://www.clinicalstudydatarequest.com

Available IPD/Information Identifier

104297

Available IPD/Information Comments

For additional information about this study please refer to the GSK Clinical Study Register

Available IPD/Information Type

Individual Participant Data Set

Available IPD/Information URL

https://www.clinicalstudydatarequest.com

Available IPD/Information Identifier

104297

Available IPD/Information Comments

For additional information about this study please refer to the GSK Clinical Study Register

Available IPD/Information Type

Dataset Specification

Available IPD/Information URL

https://www.clinicalstudydatarequest.com

Available IPD/Information Identifier

104297

Available IPD/Information Comments

For additional information about this study please refer to the GSK Clinical Study Register

Learn more about this trial

Long-Term Follow-up of Children for a 2-Year Period to Confirm the Safety and Immunogenicity of GSK 257049 Vaccine

We'll reach out to this number within 24 hrs