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Hexaxim: DTaP-IPV-HB-PRP-T Combined Vaccine

Phase 3

Diphtheria | Monoclonal antibody | Infectious Disease |Sanofi|Last Updated: Apr 5, 2022

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment53

FDA Designations

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Clinical trial landscape

Hexaxim: DTaP-IPV-HB-PRP-T Combined Vaccine · 1 trial · 6 indications

Phase 3 1
NCT02817451DTaP-IPV-HB-PRP-T Combined Vaccine as a Primary Series and a Second Year of Life Booster in HIV-Exposed Infected and Uninfected InfantsDiphtheria
COMPLETED53 Analytics
PHASE3COMPLETED
DTaP-IPV-HB-PRP-T Combined Vaccine as a Primary Series and a Second Year of Life Booster in HIV-Exposed Infected and Uninfected Infants
DiphtheriaUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants with Anti-Pertussis Toxoid (PT) and Anti-Filamentous Hemagglutinin (FHA) Antibody (Ab) Concentrations >= Lower Limit of Quantification (LLOQ) and >=4*LLOQ at Baseline
Day 0 (baseline)

Anti-PT and anti-FHA Ab concentrations are determined in terms of endotoxin units per millilitre (EU/mL).

Geometric Means of Anti-Pertussis Toxoid and Anti-Filamentous Hemagglutinin Antibody Concentrations at Baseline
Day 0 (baseline)

Anti-PT and anti-FHA Ab levels are measured by electrochemiluminescence immunoassay (ECL) and anti-PT and anti-FHA Ab concentrations are determined in terms of EU/mL.

Geometric Means of Antibody Titers/Concentrations After Primary Series Vaccination
Day 90 (1 month after third dose)

Anti-diphtheria, anti-tetanus, anti-PT and anti-FHA Ab levels are measured by ECL. Anti-poliovirus types 1, 2, and 3 Ab levels are measured by neutralisation assay. Anti-Hep B Ab levels are measured by VITROS ECi/ECiQ Immunodiagnostic system using chemiluminescence detection technology. Anti-polyribosylribitol phosphate (PRP) Ab levels are measured using a Farr-type radioimmunoassay (RIA). Ab concentrations are determined as: anti-diphtheria \>=0.01 international units (IU)/mL, \>=0.1 IU/mL, 1.0 IU/mL, anti-tetanus \>=0.01 IU/mL, \>=0.1 IU/mL, and \>=1.0 IU/mL, anti-PT and anti-FHA EU/mL, anti-PRP \>=0.15 microgram (mcg)/mL, \>=1.0 mcg/mL, anti-Poliovirus types 1, 2, and 3 Ab titers \>=8 (1/dilution \[dil\]), Anti-Hep B \>=10 milli (m) IU/mL, and \>=100 mIU/mL.

Number of Participants With Seroprotection After Primary Series Vaccination
Day 90 (1 month after third dose)

Seroprotection is determined as: anti-diptheria Ab concentrations \>=0.01 IU/mL, \>=0.1 IU/mL, and \>=1.0 IU/mL, anti-tetanus Ab concentrations \>=0.01 IU/mL, \>=0.1 IU/mL, and \>=1.0 IU/mL, anti-PT and anti-FHA Ab concentrations EU/mL (\>=LLOQ and \>=4\*LLOQ), anti-PRP Ab concentrations \>=0.15 mcg/mL and \>=1.0 mcg/mL, anti-poliovirus 1, 2, and 3 Ab titers \>=8 (1/dil), anti-Hep B Ab concentrations \>=10 mIU/mL and \>=100 mIU/mL.

Number of Participants with Vaccine Response or Seroconversion After Primary Series Vaccination
Day 0 (baseline), Day 90 (1 month after third dose)

Vaccine response is defined for anti-PT and anti-FHA as Ab post-Dose 3 concentrations \>=4\*LLOQ, if pre-Dose (Day 0) Ab concentration is \<4\*LLOQ or 1 month after third dose (Day 90) concentrations \>= pre-Dose Ab concentrations if pre-Dose (Day 0) concentrations \>=4\*LLOQ. Seroconversion for anti-PT and anti-FHA is defined as \>=4-fold Ab concentrations increase from pre-Dose (Day 0) to 1 month after third dose (Day 90).

Geometric Means of Antibody Titers/Concentrations After Booster Vaccination
Day 420 (1 month after booster vaccination)

Anti-diphtheria, anti-tetanus, anti-PT, and anti-FHA Ab levels are measured by ECL. Anti-poliovirus types 1, 2, and 3 Ab levels are measured by neutralisation assay. Anti-Hep B Ab levels are measured by VITROS ECi/ECiQ Immunodiagnostic system using chemiluminescence detection technology. Anti-PRP Ab levels are measured using a Farr-type RIA. Ab concentrations: anti-diphtheria \>=0.01 IU/mL, \>=0.1 IU/mL, \>=1.0 IU/mL, anti-tetanus \>=0.01 IU/mL, \>=0.1 IU/mL, and \>=1.0 IU/mL, anti-PT and anti-FHA EU/mL, anti-PRP \>=0.15 mcg/mL, \>=1.0 mcg/mL, anti-poliovirus 1, 2, and 3 Ab titers \>=8 (1/dil), anti-Hep B \>=10 mIU/mL, and \>=100 mIU/mL.

Number of Participants With Seroprotection After Booster Vaccination
Day 420 (1 month after booster vaccination)

Seroprotection: anti-diphtheria Ab concentrations \>=0.01 IU/mL, \>=0.1 IU/mL, and \>=1.0 IU/mL, anti-tetanus Ab concentrations \>=0.01 IU/mL, \>=0.1 IU/mL, and \>=1.0 IU/mL, anti-PT and anti-FHA Ab concentrations EU/mL (\>=LLOQ and \>=4\*LLOQ), anti-PRP Ab concentrations \>=0.15 mcg/mL and \>=1.0 mcg/mL, anti-poliovirus 1, 2, and 3 Ab titers \>=8 (1/dil), and anti-Hep B Ab concentrations \>=10 mIU/mL and \>=100 mIU/mL.

Number of Participants With Vaccine Response or Seroconversion After Booster Vaccination
Day 0 (baseline), Day 420 (1 month after booster vaccination)

Vaccine response is defined for anti-PT and anti-FHA as \>=4 fold Ab concentrations increase from pre-dose (Day 0) to 1 month after booster dose (Day 420), if pre-Dose (Day 0) Ab concentrations \<4\*LLOQ; or \>=2 fold Ab concentrations increase from pre- dose (Day 0) to 1 month after booster dose (Day 420), if pre-dose (Day 0) Ab concentrations \>=4\*LLOQ. Seroconversion is defined for anti-PT and anti-FHA as \>=4 fold Ab concentrations increase from pre-dose (Day 0) to 1 month after booster dose.

Number of Participants With Booster Response After Booster Vaccination
Day 390 (pre-booster), Day 420 (1 month after booster dose)

Booster response is defined for anti-PT and anti-FHA as \>=4 fold Ab concentrations increase from pre-booster (Day 390) to 1 month after booster dose (Day 420), if pre-booster Ab concentrations \<4\*LLOQ; or \>=2 fold Ab concentrations increase from pre-booster (Day 390) to 1 month after booster dose (Day 390) if pre-Booster Ab concentrations \>=4\*LLOQ.

Secondary Endpoints

Number of Participants With Immediate Unsolicited Adverse Events (AE) After Primary Series Vaccination
Within 30 minutes after vaccination
Number of Participants With Solicited Injections Site or Systemic Reactions After Primary Series Vaccination
Within 7 days after vaccination
Number of Participants With Unsolicited Adverse Events After Primary Series Vaccination
Within 30 days after vaccination
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Study Group AEXPERIMENTALHIV exposed and infected infants
Study Group BEXPERIMENTALHIV exposed and uninfected infants

Interventions

NameTypeDescription
Hexaxim®: DTaP-IPV-HB-PRP-T Combined VaccineBIOLOGICAL0.5 mL, Intramuscular at 6, 10, and 14 weeks of age + a booster at age 15 to 18 months
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Eligibility Criteria

Age Range5 Weeks to 8 Weeks
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: (Screening Criteria for the participants mother) * At least 18 years of age at the time of the Screening blood sample draw * Self-reported or maternity-reported HIV infection in the mother Inclusion Criteria: * Born to an adult mother and aged 35 to 56 days (between 5 and 8 w...

Countries:South Africa
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Frequently asked questions about Hexaxim: DTaP-IPV-HB-PRP-T Combined Vaccine

What is Hexaxim used for?

Hexaxim is a DTaP-IPV-HB-PRP-T combined vaccine used for immunization against diphtheria, tetanus, pertussis, hepatitis B, and polio. It is being studied in infants, including those exposed to HIV, as a primary series and booster in the second year of life.

Who makes Hexaxim?

Hexaxim is developed by Sanofi, a company traded under the ticker SNY. The vaccine is currently in Phase 3 clinical development for infectious disease indications.

What phase is Hexaxim in?

Hexaxim is in Phase 3 clinical development. It is an investigational vaccine and has not been approved for use. One Phase 3 trial has been completed to evaluate its safety and immunogenicity.

What clinical trials is Hexaxim in?

Hexaxim has one completed Phase 3 trial, NCT02817451, which studied the DTaP-IPV-HB-PRP-T combined vaccine as a primary series and booster in HIV-exposed infected and uninfected infants in South Africa. The trial enrolled 53 participants aged 5 weeks and older.

Is Hexaxim the same as DTaP-IPV-HB-PRP-T?

Yes, Hexaxim is a DTaP-IPV-HB-PRP-T combined vaccine. This combination vaccine includes components for diphtheria, tetanus, pertussis, hepatitis B, and polio, and is being evaluated for use in infants.