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Hib-MenCY-TT vaccine

Phase 2

Haemophilus Influenzae Type b | Monoclonal antibody | Infectious Disease |GSK plc|Last Updated: Aug 27, 2018

Success Probability

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials2
Total Enrollment797

FDA Designations

No designations recorded

Clinical trial landscape

Hib-MenCY-TT vaccine · 2 trials · 2 indications

Phase 2 2
NCT00127855Dose Ranging Study of Combined Haemophilus Influenzae Type B-Meningococcal Serogroups CY (Hib-MenCY-TT) VaccineHaemophilus Influenzae Type b
COMPLETED409 Analytics
NCT001291163 Formulations of Hib-MenCY-TT Vaccine & 1 Formulation of Hib-MenC-TT Vaccine Compared to Licensed Meningococcal Serogroup C Conjugate Vaccine, Each Administered at 2,3,4 Mths of AgeHaemophilus Influenzae Type b
COMPLETED388 Analytics
PHASE2COMPLETED
Dose Ranging Study of Combined Haemophilus Influenzae Type B-Meningococcal Serogroups CY (Hib-MenCY-TT) Vaccine
Haemophilus Influenzae Type bUnlock trial analytics
PHASE2COMPLETED
3 Formulations of Hib-MenCY-TT Vaccine & 1 Formulation of Hib-MenC-TT Vaccine Compared to Licensed Meningococcal Serogroup C Conjugate Vaccine, Each Administered at 2,3,4 Mths of Age
Haemophilus Influenzae Type bUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Subjects With Anti-polyribosyl Ribitol Phosphate (Anti-PRP) Antibody Concentrations Greater Than or Equal to 1 Milligram Per Milliliter
One month after primary vaccination (Month 5)

The cut-off concentration assessed was 1 milligram per milliliter (mg/mL).

Number of Subjects With Serum Bactericidal Activity Using Baby Rabbit Complement (rSBA)- Neisseria Meningitidis Serogroup C (MenC) Titers Greater Than or Equal to 1:8
One month after primary vaccination (Month 5)

The cut-off titer assessed was a dilution of 1:8. Titers were expressed as the reciprocal of the dilution resulting in 50 percent inhibition.

Number of Subjects With Serum Bactericidal Activity Using Baby Rabbit Complement (rSBA)- Neisseria Meningitidis Serogroup Y (MenY) Titers Greater Than or Equal to 1:8
One month after primary vaccination (Month 5)

The cut-off titer assessed was a dilution of 1:8. Titers were expressed as the reciprocal of the dilution resulting in 50 percent inhibition.

Number of Subjects With Anti-polyribosyl-ribitol Phosphate (Anti-PRP) Antibody Concentration Equal to or Above 1 Microgram Per Millilitre (µg/mL).
One month after dose 3 (at study Month 3 - primary phase)

Anti-PRP antibody concentration cut-off value assessed was equal to or above (≥) 1 microgram per millilitre (µg/mL)

Number of Subjects With Meningococcal Serogroup C Serum Bactericidal Assay Using Rabbit Complement (rSBA-MenC) Titre Equal to or Above 1:8
One month after dose 3 (at study Month 3 - primary phase)

rSBA-MenC antibody titre cut-off value assessed was ≥1:8

Number of Subjects With Meningococcal Serogroup Y Serum Bactericidal Assay Using Rabbit Complement (rSBA-MenY) Titre Equal to or Above 1:8
One month after dose 3 (at study Month 3 - primary phase)

rSBA-MenY antibody titre cut-off value assessed was ≥1:8

Secondary Endpoints

Number of Subjects With Serum Bactericidal Activity Using Baby Rabbit Complement (rSBA)- Neisseria Meningitidis Serogroup C (MenC) Titers Greater Than or Equal to 1:8
Prior to vaccination (Day 0), before administration of the polysaccharide challenge dose (Month 10) and one month after administration of the polysaccharide challenge dose (Month 11)
Serum Bactericidal Activity Using Baby Rabbit Complement (rSBA)- Neisseria Meningitidis Serogroup C (MenC) Titers
Prior to vaccination (Day 0), one month after the 3-dose primary vaccination course (Month 5), before administration of the polysaccharide challenge dose (Month 10) and one month after administration of the polysaccharide challenge dose (Month 11)
Number of Subjects With rSBA-MenY Titers Greater Than or Equal to 1:8
Prior to vaccination (Day 0), before administration of the polysaccharide challenge dose (Month 10) and one month after administration of the polysaccharide challenge dose (Month 11)
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
MenHibrix Formulation 1 GroupEXPERIMENTALSubjects were primed with MenHibrix formulation 1 co-administered with Infanrix Penta and Prevenar according to a 2-4-6 months of age schedule, and received a polysaccharide challenge dose (1/5th dose of MenACWY polysaccharide vaccine co-administered with 10 µg dose of plain PRP) at 12 months of age.
MenHibrix Formulation 2 GroupEXPERIMENTALSubjects were primed with MenHibrix formulation 2 co-administered with Infanrix Penta and Prevenar according to a 2-4-6 months of age schedule, and received a polysaccharide challenge dose (1/5th dose of MenACWY polysaccharide vaccine co-administered with 10 µg dose of plain PRP) at 12 months of age.
MenHibrix Formulation 3 GroupEXPERIMENTALSubjects were primed with MenHibrix formulation 3 co-administered with Infanrix Penta and Prevenar according to a 2-4-6 months of age schedule, and received a polysaccharide challenge dose (1/5th dose of MenACWY polysaccharide vaccine co-administered with 10 µg dose of plain PRP) at 12 months of age.
Menjugate GroupACTIVE_COMPARATORSubjects were primed with Menjugate co-administered with Infanrix Penta and ActiHIB according to a 2-4-6 months of age schedule, and received a polysaccharide challenge dose (1/5th dose of MenACWY polysaccharide vaccine co-administered with 10 µg dose of plain PRP) at 12 months of age.
ActHIB GroupACTIVE_COMPARATORSubjects were primed with ActHIB co-administered with Infanrix Penta and Prevenar according to a 2-4-6 months of age schedule, and received a polysaccharide challenge dose (1/5th dose of MenACWY polysaccharide vaccine co-administered with 10 µg dose of plain PRP) at 12 months of age.
Menhibrix F1/Infanrix-penta GroupEXPERIMENTALSubjects received Menhibrix vaccine formulation 1 and Infanrix-penta vaccine. Vaccines were administered as a 3-dose primary vaccination course at 2, 3 and 4 months of age (at study Months 0, 1 and 2 of the primary phase). At 12-18 months of age (at study Month 0 of the booster phase), subjects received a booster dose of the two vaccines administered in the primary vaccination course. Menhibrix and Infanrix-penta vaccines were administered intramuscularly in the left and right anterolateral thigh, respectively.
Menhibrix F2/Infanrix-penta GroupEXPERIMENTALSubjects received Menhibrix vaccine formulation 2 and Infanrix-penta vaccine. Vaccines were administered as a 3-dose primary vaccination course at 2, 3 and 4 months of age (at study Months 0, 1 and 2 of the primary phase). At 12-18 months of age (at study Month 0 of the booster phase), subjects received a booster dose of the two vaccines administered in the primary vaccination course. Menhibrix and Infanrix-penta vaccines were administered intramuscularly in the left and right anterolateral thigh, respectively.
Menhibrix F3/Infanrix-penta GroupEXPERIMENTALSubjects received Menhibrix vaccine formulation 3 and Infanrix-penta vaccine. Vaccines were administered as a 3-dose primary vaccination course at 2, 3 and 4 months of age (at study Months 0, 1 and 2 of the primary phase). At 12-18 months of age (at study Month 0 of the booster phase), subjects received a booster dose of the two vaccines administered in the primary vaccination course. Menhibrix and Infanrix-penta vaccines were administered intramuscularly in the left and right anterolateral thigh, respectively.
Menitorix/Infanrix-penta GroupEXPERIMENTALSubjects received Menitorix vaccine and Infanrix-penta vaccine. Vaccines were administered as a 3-dose primary vaccination course at 2, 3 and 4 months of age (at study Months 0, 1 and 2 of the primary phase). At 12-18 months of age (at study Month 0 of the booster phase), subjects received a booster dose of the two vaccines administered in the primary vaccination course. Menitorix and Infanrix-penta vaccines were administered intramuscularly in the left and right anterolateral thigh, respectively.
Menjugate/Infanrix-hexa GroupACTIVE_COMPARATORSubjects received Menjugate vaccine and Infanrix-hexa vaccine. Vaccines were administered as a 3-dose primary vaccination course at 2, 3 and 4 months of age (at study Months 0, 1 and 2 of the primary phase). At 12-18 months of age (at study Month 0 of the booster phase), subjects received a booster dose of the two vaccines administered in the primary vaccination course. Menjugate and Infanrix-hexa vaccines were administered intramuscularly in the left and right anterolateral thigh, respectively.

Interventions

NameTypeDescription
Hib-MenCY-TT vaccine (MenHibrix)BIOLOGICALThree doses were administered intramuscularly (IM) in left thigh at Months 0,2 and 4 respectively
Meningitec®BIOLOGICALThree doses were administered IM in right lower thigh at Months 0,2 and 4.
ActHIB®BIOLOGICALThree doses were administered IM in left thigh at Months 0,2 and 4.
Infanrix® PentaBIOLOGICALThree doses were administered IM in right upper thigh at Months 0,2 and 4 respectively.
Prevenar®BIOLOGICALThree doses were administered IM in right lower thigh at Months 0,2 and 4 respectively.
Mencevax® ACWYBIOLOGICALOne fifth of one dose was administered IM in deltoid region of right arm at Month 10 as booster.
PRP (Polyribosyl Ribitol Phosphate)BIOLOGICALOne dose was administered IM in deltoid region of left arm at Month 10 as booster.
Hib-MenCY-TT vaccineBIOLOGICALThree doses during the primary vaccination and one booster dose administered intramuscularly (IM) in left thigh.
Hib-MenC-TT vaccineBIOLOGICALThree doses during the primary vaccination and one booster dose administered intramuscularly (IM) in left thigh.
Menjugate ®BIOLOGICALThree doses during the primary vaccination and one booster dose administered intramuscularly (IM) in left thigh.
Infanrix penta ®BIOLOGICALThree doses during the primary vaccination and one booster dose administered intramuscularly (IM) in right thigh.
Infanrix hexa ®BIOLOGICALThree doses during the primary vaccination and one booster dose administered intramuscularly (IM) in right thigh.
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Eligibility Criteria

Age Range6 Weeks to 12 Weeks
SexALL
Healthy VolunteersYes
Study Sites3

Inclusion criteria: * A male or female between, and including, 6 and 12 weeks (42-90 days) of age at the time of the first vaccination. * Written informed consent obtained from the parent or guardian of the subject. * Free of obvious health problems as established by medical history and clinical ex...

Countries:AustraliaBelgiumGermany
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Frequently asked questions about Hib-MenCY-TT vaccine

What is Hib-MenCY-TT used for?

Hib-MenCY-TT is an investigational vaccine being developed for the prevention of diseases caused by Neisseria Meningitidis and Haemophilus Influenzae Type b. It is designed for use in infants and toddlers, with clinical trials enrolling healthy participants as young as 6 weeks of age.

What does Hib-MenCY-TT target?

Hib-MenCY-TT targets two bacterial pathogens: Neisseria Meningitidis, which causes meningococcal disease, and Haemophilus Influenzae Type b, which causes severe bacterial infections including meningitis. The vaccine combines antigens from both organisms to elicit an immune response.

Who makes Hib-MenCY-TT?

Hib-MenCY-TT is being developed by GSK plc, a global biopharma company listed on the stock exchange under the ticker GSK. GSK Biologicals conducted the clinical trials for this vaccine candidate.

What phase is Hib-MenCY-TT in?

Hib-MenCY-TT is in Phase 3 clinical development. It has completed two Phase 2 trials and one Phase 3 trial, all of which are finished. The drug remains investigational and has not been approved by regulatory authorities.

What clinical trials is Hib-MenCY-TT in?

Hib-MenCY-TT has been studied in three completed trials: NCT00127855, a Phase 2 dose-ranging study in Australia with 409 participants; NCT00129116, a Phase 2 formulation comparison in Belgium and Germany with 388 participants; and NCT01978093, a Phase 3 trial in the United States with 600 participants comparing it to PedvaxHIB.

Is Hib-MenCY-TT the same as MenHibrix?

Yes, Hib-MenCY-TT is also known as MenHibrix. The Phase 3 trial NCT01978093 explicitly refers to the vaccine as MenHibrix, indicating that these names are used interchangeably for the same vaccine candidate.