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Priorix

Phase 3

Haemophilus Influenzae Type b | Monoclonal antibody | Infectious Disease |GSK plc|Last Updated: Jan 7, 2021

Success Probability

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials1
Total Enrollment433

FDA Designations

No designations recorded

Clinical trial landscape

Priorix · 7 trials · 9 indications

Phase 3 7
NCT02184572Safety and Immunogenicity Study of GlaxoSmithKline (GSK) Biologicals' Measles, Mumps and Rubella (MMR) Vaccine (209762) Compared to Merck & Co., Inc.'s MMR Vaccine in Healthy Children 12 to 15 Months of AgeMeasles; Mumps; Rubella
COMPLETED1,742 Analytics
NCT02058563Immunogenicity and Safety of GSK Biologicals' Combined Measles-mumps-rubella Vaccine in Volunteers, Seven Years of Age and OlderRubella
COMPLETED996 Analytics
NCT01702428Consistency Study of GlaxoSmithKline (GSK) Biologicals' MMR Vaccine (209762) (Priorix) Comparing Immunogenicity and Safety to Merck & Co., Inc.'s MMR Vaccine (M-M-R II), in Children 12 to 15 Months of AgeRubella
COMPLETED5,016 Analytics
NCT01681992Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Combined Measles-mumps-rubella (MMR) Vaccine in Children in Their Second Year of LifeMeasles
COMPLETED4,538 Analytics
NCT01621802Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Combined Measles-mumps-rubella (MMR) Vaccine in Subjects Four to Six Years of AgeMeasles-Mumps-Rubella
COMPLETED4,011 Analytics
NCT00969436Comparison of GSK Measles-mumps-rubella-varicella (MMRV) Vaccine Versus PriorixTMVaricella
COMPLETED450 Analytics
NCT00326118Study in Toddlers to Demonstrate Non-inferiority of GSK Biologicals' Hib-MenC & to Evaluate Persistence up to 5 Years.Haemophilus Influenzae Type b
COMPLETED433 Analytics
PHASE3COMPLETED
Safety and Immunogenicity Study of GlaxoSmithKline (GSK) Biologicals' Measles, Mumps and Rubella (MMR) Vaccine (209762) Compared to Merck & Co., Inc.'s MMR Vaccine in Healthy Children 12 to 15 Months of Age
Measles; Mumps; RubellaUnlock trial analytics
PHASE3COMPLETED
Immunogenicity and Safety of GSK Biologicals' Combined Measles-mumps-rubella Vaccine in Volunteers, Seven Years of Age and Older
RubellaUnlock trial analytics
PHASE3COMPLETED
Consistency Study of GlaxoSmithKline (GSK) Biologicals' MMR Vaccine (209762) (Priorix) Comparing Immunogenicity and Safety to Merck & Co., Inc.'s MMR Vaccine (M-M-R II), in Children 12 to 15 Months of Age
RubellaUnlock trial analytics
PHASE3COMPLETED
Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Combined Measles-mumps-rubella (MMR) Vaccine in Children in Their Second Year of Life
MeaslesUnlock trial analytics
PHASE3COMPLETED
Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Combined Measles-mumps-rubella (MMR) Vaccine in Subjects Four to Six Years of Age
Measles-Mumps-RubellaUnlock trial analytics
PHASE3COMPLETED
Comparison of GSK Measles-mumps-rubella-varicella (MMRV) Vaccine Versus PriorixTM
VaricellaUnlock trial analytics
PHASE3COMPLETED
Study in Toddlers to Demonstrate Non-inferiority of GSK Biologicals' Hib-MenC & to Evaluate Persistence up to 5 Years.
Haemophilus Influenzae Type bUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Subjects Reporting Fever After MMR (Priorix or M-M-R II/M-M-R VaxPro [Lot 1 or Lot 2]) Vaccination
During Day 5 to Day 12 post-vaccination period

Fever was assessed for temperature equal to/above (≥) 38.0°C and above (\>) 39.0°C. The safety profile for fever was assessed based on the group difference (INV\_MMR minus COM\_MMR) in incidence of fever equal to or below the cut-off value.

Anti-measles Virus Antibody Concentrations.
At Day 42

Antibody concentrations are expressed as Geometric Mean Concentrations (GMCs) in milli International Units per milliliter (mIU/mL). Seropositivity was defined as subjects with anti-measles virus antibody concentration equal or greater than 150 mIU/mL.

Anti-mumps Virus Antibody Concentrations
At Day 42

Antibody concentrations are expressed as Geometric Mean Concentrations (GMCs) in EU/mL. Seropositivity was defined as subjects with anti-mumps virus antibody concentration equal or greater than 5 EU/mL

Anti-rubella Virus Antibody Concentrations.
At Day 42

Antibody concentrations are expressed as Geometric Mean Concentrations (GMCs) in IU/mL. Seropositivity was defined as subjects with anti-rubella virus antibody concentration equal or greater than 4 IU/mL

Percentage of Subjects With Anti-measles Virus Antibody Concentration Equal to or Above the Cut-off-value
At Day 42

Seroresponse was defined as post-vaccination anti-measles virus antibody concentration ≥200 milli International Unit/Milliliter (mIU/mL) among subjects who were seronegative (antibody concentration \<150 mIU/mL) before vaccination. This outcome measure is applicable to reporting groups INV\_MMR\_L1, INV\_MMR\_L2 and INV\_MMR\_L3 as analysis was performed on subjects who received one of the lots of INV\_MMR vaccine.

Anti-measles Virus Antibody Concentrations
At Day 42

Antibody concentrations were expressed as Geometric Mean Concentrations (GMCs) in mIU/mL. This outcome measure is applicable to reporting groups INV\_MMR\_L1, INV\_MMR\_L2 and INV\_MMR\_L3 as analysis was performed on subjects who received one of the lots of INV\_MMR vaccine.

Percentage of Subjects With Anti-mumps Virus Antibody Concentration Equal to or Above the Cut-off-value
At Day 42

Seroresponse was defined as post-vaccination anti-mumps virus antibody concentration ≥10 ELISA Unit/Milliliter (EU/mL) among subjects who were seronegative (antibody concentrations \<5 EU/mL) before vaccination. This outcome measure is applicable to reporting groups INV\_MMR\_L1, INV\_MMR\_L2 and INV\_MMR\_L3 as analysis was performed on subjects who received one of the lots of INV\_MMR vaccine.

Anti-mumps Virus Antibody Concentration
At Day 42

Antibody concentrations were expressed as GMCs in EU/mL. This outcome measure is applicable to reporting groups INV\_MMR\_L1, INV\_MMR\_L2 and INV\_MMR\_L3 as analysis was performed on subjects who received one of the lots of INV\_MMR vaccine.

Percentage of Subjects With Anti-rubella Virus Antibody Concentration Equal to or Above the Cut-off-value
At Day 42

Seroresponse was defined as post-vaccination anti-rubella virus antibody concentration ≥10 International Unit/Milliliter (IU/mL) among subjects who were seronegative (antibody concentrations \<4 IU/mL) before vaccination. This outcome measure is applicable to reporting groups INV\_MMR\_L1, INV\_MMR\_L2 and INV\_MMR\_L3 as analysis was performed on subjects who received one of the lots of INV\_MMR vaccine.

Anti-rubella Virus Antibody Concentration
At Day 42

Antibody concentrations were expressed as GMCs in IU/mL. This outcome measure is applicable to reporting groups INV\_MMR\_L1, INV\_MMR\_L2 and INV\_MMR\_L3 as analysis was performed on subjects who received one of the lots of INV\_MMR vaccine.

Percentage of Subjects With Anti-measles Virus Antibody Concentration Equal to or Above the Cut-off-value in Pooled MMR Groups
At Day 42

Seroresponse was defined as post-vaccination anti-measles virus antibody concentration ≥200 mIU/mL among subjects who were seronegative (antibody concentration \<150 mIU/mL) before vaccination. Criteria to demonstrate an acceptable immune response for INV\_MMR in terms of seroresponse rates to measles virus at Day 42: The LL of 2-sided 95% CI for the seroresponse rate for the pooled INV\_MMR lots is ≥90% for antibodies to measles virus.

Anti-measles Virus Antibody Concentrations in Pooled MMR Groups
At Day 42

Antibody concentrations were expressed as GMCs in mIU/mL.

Percentage of Subjects With Anti-mumps Virus Antibody Concentration Equal to or Above the Cut-off-value in Pooled MMR Groups
At Day 42

Seroresponse was defined as post-vaccination anti-mumps virus antibody concentration ≥10 EU/mL among subjects who were seronegative (antibody concentrations \<5 EU/mL) before vaccination.

Anti-mumps Virus Antibody Concentration in Pooled MMR Groups
At Day 42

Antibody concentrations were expressed as GMCs in EU/mL.

Percentage of Subjects With Anti-rubella Virus Antibody Concentration Equal to or Above the Cut-off-value in Pooled MMR Groups
At Day 42

Seroresponse was defined as post-vaccination anti-rubella virus antibody concentration ≥10 IU/mL among subjects who were seronegative (antibody concentrations \<4 IU/mL) before vaccination. Criteria to demonstrate an acceptable immune response for INV\_MMR in terms of seroresponse rates to rubella virus at Day 42: The LL of 2-sided 95% CI for the seroresponse rate for the pooled INV\_MMR lots is ≥90% for antibodies to rubella virus.

Anti-rubella Virus Antibody Concentration in Pooled MMR Groups
At Day 42

Antibody concentrations were expressed as GMCs in IU/mL.

Percentage of Subjects With Anti-measles Virus Antibody Concentration Equal to or Above the Cut-off-value (by Enzyme-linked Immunosorbent Assay [ELISA])
At Day 42

For measles virus, a seroresponse was defined as post-vaccination anti-measles virus antibody concentration equal or above \[≥\] 200 mIU/mL (ELISA) among subjects who were seronegative (antibody concentration less than \[\<\] 150 mIU/mL) before dose 1. Criteria to demonstrate an acceptable immune response of Inv\_MMR\_Min/Inv\_MMR\_Med vaccine in terms of seroresponse rate for measles virus at Day 42: The lower limit of the two-sided 97.5% CI for the seroresponse rate of Inv\_MMR\_Min/Inv\_MMR\_Med was to be ≥ 90% for antibodies to measles virus.

Percentage of Subjects With Anti-mumps Virus Antibody Concentration Equal to or Above the Cut-off-value (by ELISA)
At Day 42

For mumps virus, a seroresponse was defined as post-vaccination anti-mumps virus antibody concentration ≥ 10 EU/mL (ELISA) among subjects who were seronegative (antibody concentration \< 5 EU/mL) before dose 1. Criteria to demonstrate an acceptable immune response of Inv\_MMR\_Min/Inv\_MMR\_Med vaccine in terms of seroresponse rate for mumps virus at Day 42: The lower limit of the two-sided 97.5% CI for the seroresponse rate of Inv\_MMR\_Min/Inv\_MMR\_Med was to be ≥ 90% for antibodies to mumps virus.

Percentage of Subjects With Anti-mumps Virus Antibody Concentration Equal to or Above the Cut-off-value (by Plaque Reduction Neutralization Test [PRNT])
At Day 42

For mumps virus as measured by PRNT, a seroresponse was defined as post-vaccination anti-mumps virus antibody concentration ≥ 4 End point Dilution 50% (ED50) (PRNT) among subjects who were seronegative (antibody concentration \< 2.5 ED50) before dose 1.

Percentage of Subjects With Anti-rubella Virus Antibody Concentration Equal to or Above the Cut-off-value (by ELISA)
At Day 42

For rubella virus, a seroresponse was defined as post-vaccination anti-rubella virus antibody concentration ≥ 10 IU/mL (ELISA) among subjects who were seronegative (antibody concentration \< 4 IU/mL) before dose 1. Criteria to demonstrate an acceptable immune response of Inv\_MMR\_Min/Inv\_MMR\_Med vaccine in terms of seroresponse rate for rubella virus at Day 42: The lower limit of the two-sided 97.5% CI for the seroresponse rate of Inv\_MMR\_Min/Inv\_MMR\_Med was to be ≥ 90% for antibodies to mumps virus.

Anti-measles Virus Antibody Concentrations (by ELISA)
At Day 42

Antibody concentrations were expressed as Geometric Mean Concentrations (GMCs) in mIU/mL.

Anti-mumps Virus Antibody Concentrations (by ELISA)
At Day 42

Antibody concentrations were expressed as GMCs in EU/mL.

Anti-mumps Virus Antibody Concentrations (by PRNT)
At Day 42

Antibody concentrations were expressed as Geometric Mean Titers (GMTs).

Anti-rubella Virus Antibody Concentrations (by ELISA)
At Day 42

Antibody concentrations were expressed as GMCs in IU/mL.

Number of Subjects With Anti-measles Virus Antibody Concentration Equal to or Above the Cut-off-value
42 days post vaccination (At Day 42)

Seroresponse was defined as post-vaccination anti-measles virus antibody concentration equal to or above (≥) 200 milli-international Units per milliliter (mIU/mL). Analysis was done in sub-cohorts 1 and 2 only.

Number of Subjects With Anti-mumps Virus Antibody Concentration Equal to or Above the Cut-off-value
42 days post vaccination (At Day 42)

Seroresponse was defined as post-vaccination anti-mumps virus antibody concentration ≥ 10 ELISA Units per milliliter (EU/mL). Analysis was done in sub-cohorts 1 and 2 only.

Number of Subjects With Anti-rubella Virus Antibody Concentration Equal to or Above the Cut-off-value
42 days post vaccination (At Day 42)

Seroresponse was defined as post-vaccination anti-rubella virus antibody concentration ≥ 10 International Units per milliliter (IU/mL). Analysis was done in sub-cohorts 1 and 2 only.

Evaluation of Immunogenicity in Terms of Anti-measles Virus Antibody Concentrations
42 days after vaccination (At Day 42)

Antibody concentrations were expressed as Geometric Mean Concentrations (GMCs) in mIU/mL. Analysis was done in sub-cohorts 1 and 2 only.

Evaluation of Immunogenicity in Terms of Anti-mumps Virus Antibody Concentrations
42 days post vaccination (At Day 42)

Antibody concentrations were expressed as GMCs in EU/mL. Analysis was done in sub-cohorts 1 and 2 only.

Evaluation of Immunogenicity in Terms of Anti-rubella Virus Antibody Concentrations
42 days post vaccination (At Day 42)

Antibody concentrations were expressed as GMCs in IU/mL. Analysis was done in sub-cohorts 1 and 2 only.

Number of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies
At 42 - 56 days after the second vaccination dose at week 30

Seroconversion was defined as the appearance of antibodies \[i.e. concentration/titre greater than or equal to (≥) the cut-off value\] in the serum of subjects seronegative before vaccination. The cut-off values for seroconversion were 150 milli-international units per milliliter (mIU/mL), 231 units per milliliter (U/mL), 4 international units per milliliter (IU/mL) and for immunoglobulin G (IgG) varicella antibodies 1:4 dilution for measles, mumps, rubella and varicella, respectively.

Number of Subjects With Anti-polyribosylribitol Phosphate (Anti-PRP) Antibody Concentration Greater Than or Equal to 0.15 Micrograms Per Milliliter (µg/mL)
1 month after vaccination

Anti-PRP antibody concentration greater than or equal to 0.15 µg/mL is indicative of short-term protection.

Number of Subjects With Meningococcal Serogroup C Serum Bactericidal Assay Using Rabbit Complement (rSBA-MenC) Titers Greater Than or Equal to 1:8 Titer
1 month after vaccination

rSBA-MenC titers greater than or equal to 1:8 titer are indicative of seroprotection.

Secondary Endpoints

Percentage of Subjects With Anti-measles Virus Antibody Concentration Equal to or Above the Cut-off-value
At Day 42 post vaccination
Anti-measles Virus Antibody Concentrations
At Day 42 post vaccination
Percentage of Subjects With Anti-mumps Virus Antibody Concentration Equal to or Above the Cut-off-value
At Day 42 post vaccination
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
INV_MMREXPERIMENTALSubjects receive 1 dose of the study vaccine Priorix co-administered with Varivax and Havrix vaccines at Day 0. Subjects recruited in the US also receive Prevnar 13 at Day 0.
COM_MMRACTIVE_COMPARATORSubjects receive 1 dose of the licensed vaccine M-M-R II or M-M-R VaxPro Lot 1 or Lot 2 co-administered with Varivax and Havrix vaccines at Day 0. Subjects recruited in the US also receive Prevnar 13 at Day 0.
INV_MMR GroupEXPERIMENTALSubjects will receive 1 dose of GSK Biologicals' trivalent Measles, Mumps, and Rubella Virus Vaccine (Priorix®).
COM_MMR GroupACTIVE_COMPARATORSubjects will receive 1 dose of Merck's M-M-R®II, Measles, Mumps, and Rubella Virus Vaccine.
INV_MMR_L1 GroupEXPERIMENTALSubjects receive 1 dose of GSK's candidate combined measles, mumps and rubella (MMR) investigational vaccine (INV\_MMR) Lot 1 (L1) co-administered with VV and HAV vaccines at Visit 1 (Day 0). All US subjects are also given PCV-13 vaccine. The MMR vaccine is administered subcutaneously in the triceps region of the left arm while the VV vaccine is administered subcutaneously in the triceps region of the right arm. HAV and PCV-13 vaccines are administered intramuscularly in the anterolateral region of the right and left thigh, respectively.
INV_MMR_L2 GroupEXPERIMENTALSubjects receive 1 dose of GSK's candidate combined measles, mumps and rubella (MMR) investigational vaccine (INV\_MMR) Lot 2 (L2) co-administered with VV and HAV vaccines at Visit 1 (Day 0). All US subjects are also given PCV-13 vaccine. The MMR vaccine is administered subcutaneously in the triceps region of the left arm while the VV vaccine is administered subcutaneously in the triceps region of the right arm. HAV and PCV-13 vaccines are administered intramuscularly in the anterolateral region of the right and left thigh, respectively.
INV_MMR_L3 GroupEXPERIMENTALSubjects receive 1 dose of GSK's candidate combined measles, mumps and rubella (MMR) investigational vaccine (INV\_MMR) Lot 3 (L3) co-administered with VV and HAV vaccines at Visit 1 (Day 0). All US subjects are also given PCV-13 vaccine. The MMR vaccine is administered subcutaneously in the triceps region of the left arm while the VV vaccine is administered subcutaneously in the triceps region of the right arm. HAV and PCV-13 vaccines are administered intramuscularly in the anterolateral region of the right and left thigh, respectively.
Inv_MMR_Min GroupEXPERIMENTALSubjects receive one dose of GlaxoSmithKline (GSK) Biologicals' measles, mumps, rubella (MMR) vaccine, Priorix (Inv\_MMR), from a minimum potency lot (Inv\_MMR\_Min), co-administered with Varivax (VV) and Havrix (HAV) vaccines at Day 0. All US subjects are also co-administered Prevnar 13 (PCV-13) vaccine. Approximately 6 weeks later, at Day 42, subjects are administered a dose from a separate lot of the Inv\_MMR vaccine (Inv\_MMR\_Release), for the second dose. Inv\_MMR and VV vaccines are administered subcutaneously in the triceps region of the left and right arm, respectively. HAV and PCV-13 vaccines are administered intramuscularly in the anterolateral region of the right and left thigh, respectively.
Inv_MMR_Med GroupEXPERIMENTALSubjects receive one dose of GlaxoSmithKline (GSK) Biologicals' measles, mumps, rubella (MMR) vaccine, Priorix (Inv\_MMR), from a mid-range or medium potency lot (Inv\_MMR\_Med), co-administered with Varivax (VV) and Havrix (HAV) vaccines at Day 0. All US subjects are also co-administered Prevnar 13 (PCV-13) vaccine. Approximately 6 weeks later, at Day 42, subjects are administered a dose from a separate lot of the Inv\_MMR vaccine (Inv\_MMR\_Release), for the second dose. Inv\_MMR and VV vaccines are administered subcutaneously in the triceps region of the left and right arm, respectively. HAV and PCV-13 vaccines are administered intramuscularly in the anterolateral region of the right and left thigh, respectively.
Inv _MMR_CO GroupEXPERIMENTALSubjects received one dose of the study vaccine Priorix along with Kinrix and ProQuad vaccines at Visit 1 (Day 0).
Com_MMR_CO GroupACTIVE_COMPARATORSubjects received one dose of the licensed vaccine M-M-R II (also known as M-M-R Vax Pro) Lot 1 or Lot 2 along with Kinrix and ProQuad vaccines at Visit 1 (Day 0).
Inv_MMR_I GroupEXPERIMENTALSubjects received one dose of Priorix at Visit 1 (Day 0).
Com_MMR_I GroupACTIVE_COMPARATORSubjects received one dose of M-M-R II (also known as M-M-R Vax Pro) vaccine from Lot 1 or Lot 2 at Visit 1 (Day 0).
Inv _MMR_S GroupEXPERIMENTALSubjects in this safety cohort received one dose of Priorix at Visit 1 (Day 0).
Com_MMR_S GroupACTIVE_COMPARATORSubjects in this safety cohort received one dose of M-M-R II (also known as M-M-R Vax Pro) vaccine from Lot 1 or Lot 2 at Visit 1 (Day 0).
Priorix-Tetra GroupEXPERIMENTALSubjects received 2 doses of Priorix-Tetra® vaccine, 1 at Day 0 and 1 at Month 6, administered subcutaneously in the left anterolateral thigh.
Priorix/ Priorix-Tetra GroupEXPERIMENTALSubjects received 1 dose of Priorix™ vaccine at Day 0 and 1 dose of Priorix-Tetra® vaccine at Month 6, both administered subcutaneously in the left anterolateral thigh.
Control GroupACTIVE_COMPARATORSubjects received 1 dose of Priorix™ vaccine at Day 0 and 1 dose of Priorix™ vaccine co-administered with Varilirix™ vaccine at Month 6, administered subcutaneously in the left and right anterolateral thigh.
Meningitec + Hiberix GroupACTIVE_COMPARATORSubjects received a single dose of Meningitec™ vaccine co-administered with Hiberix™ and Priorix™ vaccines. The Meningitec vaccine was administered intramuscularly in the left deltoid region, the Hiberix vaccine was administered intramuscularly in the left thigh region and the Priorix vaccine was administered subcutaneously in the right upper arm.
Menitorix GroupEXPERIMENTALSubjects received a single dose of Menitorix™ vaccine co-administered with Priorix™ vaccine. Menitorix vaccine was administered intramuscularly in the left deltoid region and the Priorix vaccine was administered subcutaneously in the right upper arm.

Interventions

NameTypeDescription
PriorixBIOLOGICAL1 dose administered subcutaneously in the triceps region of left arm at Day 0
M-M-R IIBIOLOGICAL1 dose administered subcutaneously in the triceps region of left arm at Day 0
VarivaxBIOLOGICAL1 dose administered subcutaneously in the triceps region of right arm at Day 0
HavrixBIOLOGICAL1 dose administered intramuscularly in the anterolateral region of the right thigh at Day 0
Prevnar 13BIOLOGICAL1 dose administered intramuscularly in the anterolateral region of the left thigh at Day 0 to subjects recruited in US
Priorix®BIOLOGICAL1 dose administered as a subcutaneous (SC) injection.
Merck's M-M-R®II, Measles, Mumps, and Rubella Virus VaccineBIOLOGICAL1 dose administered subcutaneously.
KinrixBIOLOGICALOne dose administered by deep intramuscular injection in the upper left deltoid.
ProQuadBIOLOGICALOne dose administered subcutaneously in the triceps region of the left arm.
GSK Biological's investigational MMRV vaccine 208136BIOLOGICALSubcutaneous injection
Priorix™BIOLOGICALSubcutaneous injection
Varilrix™BIOLOGICALSubcutaneous injection
Haemophilus influenzae type b and meningococcal serogroup C (vaccine)BIOLOGICALOne intramuscular dose at 12-18 months of age
Hiberix™BIOLOGICALOne intramuscular dose at 12-18 months of age.
Meningitec™BIOLOGICALOne intramuscular dose at 12-18 months of age
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Eligibility Criteria

Age Range12 Months to 15 Months
SexALL
Healthy VolunteersYes
Study Sites95

Inclusion Criteria: * Male or female child between 12 and 15 months of age (e.g., from the 1 year birthday until the day before age 16 months) at the time of vaccination. * Subjects' parent(s)/Legally Acceptable Representative(s) \[LAR(s)\] who, in the opinion of the investigator, can and will comp...

Countries:United StatesEstoniaFinlandPuerto RicoTaiwanSlovakiaMexicoSpainCzechiaMalaysiaThailandSouth KoreaIndiaAustralia
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Frequently asked questions about Priorix

What is Priorix used for?

Priorix is a vaccine used for immunization against measles, mumps, rubella, and varicella. It is being studied in children as young as 9 months and in adults 7 years and older. The vaccine is developed by GSK plc.

Who makes Priorix?

Priorix is developed by GSK plc, a global biopharma company listed on the London Stock Exchange under the ticker GSK. The vaccine is currently in Phase 3 clinical development for infectious disease indications.

What phase is Priorix in?

Priorix is in Phase 3 clinical development. It is an investigational vaccine, meaning it has not yet been approved by regulatory authorities. All completed trials are Phase 3 studies evaluating safety and immunogenicity.

What clinical trials is Priorix in?

Priorix has completed four Phase 3 trials, including NCT00969436, NCT01702428, NCT02058563, and NCT02184572. These trials enrolled a total of 6,012 participants across countries such as the United States, India, Estonia, Finland, Mexico, and Taiwan.

Is Priorix the same as M-M-R II?

Priorix is not the same as M-M-R II, but it has been directly compared to Merck's M-M-R II vaccine in clinical trials. Studies like NCT01702428 and NCT02184572 evaluated Priorix against M-M-R II in children 12 to 15 months of age.

What does Priorix target?

Priorix targets measles, mumps, rubella, and varicella viruses. It is designed to generate an immune response against these infectious agents, providing protection against the respective diseases. The vaccine is being studied for use in healthy children and adults.