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Clinical Trials/NCT05091619
NCT05091619
Active, Not Recruiting
Phase 3

A Randomized, Blinded, Parallel Controlled Phase 3 Clinical Study to Evaluate the Safety and Immunogenicity of the Diphtheria, Tetanus and Three-components Acellular Pertussis Combined Vaccine, Adsorbed in Healthy Infants at the Age of 2 Months and 3 Months

China National Biotec Group Company Limited4 sites in 1 country2,898 target enrollmentOctober 22, 2021

Overview

Phase
Phase 3
Intervention
Diphtheria,Tetanus and Acellular Pertussis (Three Components) Combined Vaccine, Adsorbed
Conditions
Whooping Cough
Sponsor
China National Biotec Group Company Limited
Enrollment
2898
Locations
4
Primary Endpoint
Percentage of participants reporting systemic events
Status
Active, Not Recruiting
Last Updated
7 months ago

Overview

Brief Summary

The study will evaluate the safety, immunogenicity,immune persistence and lot-to-lot consistency of Diphtheria,Tetanus and Acellular Pertussis (Three Components) Combined Vaccine, Adsorbed, (DTacP) including 2 parts:

PART 1 will evaluate the safety and immunogenicity of DTacP in health infants aged 2 months and 3 months compared with an adsorption Tetanus-diphtheria-acellular Pertussis (DTaP) Vaccine and Diphtheria,tetanus,pertussis(acellular,component),poliomyelitis(inactivated) vaccine(absorbed) and Haemophilus influenzae type b conjugate vaccine (PENTAXIM),compare the safety and immunogenicity of DTacP with different immunization schedules, and observe the immune persistence.

PART 2 will evaluate the lot-to-lot consistency of DTacP in health infants aged 3 months with the 3-dose schedule of 3-4-5 month.

Registry
clinicaltrials.gov
Start Date
October 22, 2021
End Date
September 22, 2027
Last Updated
7 months ago
Study Type
Interventional
Study Design
Parallel
Sex
All

Investigators

Responsible Party
Sponsor

Eligibility Criteria

Inclusion Criteria

  • Healthy subjects aged 2months (60-89 days) and 3months (90-119 days) ;
  • Willing to provide proof of identity
  • Subjects aged 2 months have not been vaccinated with DTaP, IPV, Hib, or 13-valent pneumococcal polysaccharide conjugate vaccine;
  • Subjects of 3 months have not been inoculated with DTaP vaccine, and IPV (only group A3);
  • Subjects'guardians or trustees are able to understand and sign the informed consent voluntarily, comply with the requirements of the clinical study plan.

Exclusion Criteria

  • With temperature \>37.0°C on axillary setting before vacciation;
  • With a medical history of diphtheria, pertussis or tetanus;
  • Had contact with individuals with confirmed pertussis, diphtheria and tetanus diseases in their families in the past 30 days;
  • Premature birth (delivery before the 37th week of pregnancy)or low birth weight (birth weight\< \<2500g);
  • History of dystocia, suffocation rescue, neurological damage;
  • With congenital malformations or developmental disorders, genetic defects, severe malnutrition, etc.
  • History of epilepsy, convulsions or convulsions, or have a family history of mental illness;
  • History of abnormal blood coagulation (such as coagulation factor deficiency, coagulopathy);
  • Had received immune enhancement or inhibitor therapy (continuous oral or instillation for more than 14 days);
  • History of severe allergic reactions to vaccination, such as difficulty breathing, urticaria;

Arms & Interventions

A1

subjects aged 3 months receive 3 doses of vaccines with a interval of 30 days for primary immunization, and a booster dose at 18 month old

Intervention: Diphtheria,Tetanus and Acellular Pertussis (Three Components) Combined Vaccine, Adsorbed

A2

subjects aged 3 months receive 3 doses of vaccines with a interval of 30 days for primary immunization, and a booster dose at 18 month old

Intervention: Diphtheria,Tetanus and Acellular Pertussis Combined Vaccine, Adsorbed

A3

subjects aged 3 months receive 3 doses of vaccines with a interval of 30 days for primary immunization, and a booster dose at 18 month old

Intervention: Diphtheria,tetanus,pertussis(acellular,component),poliomyelitis(inactivated) vaccine(absorbed) and Haemophilus influenzae type b conjugate vaccine

B1

subjects aged 2 months receive 3 doses of vaccines with a interval of 30 days for primary immunization, and a booster dose at 18 month old

Intervention: Diphtheria,Tetanus and Acellular Pertussis (Three Components) Combined Vaccine, Adsorbed

B2

subjects aged 2 months receive 3 doses of vaccines with a interval of 30 days for primary immunization, and a booster dose at 18 month old

Intervention: Diphtheria,Tetanus and Acellular Pertussis Combined Vaccine, Adsorbed

B3

subjects aged 2 months receive 3 doses of vaccines with a interval of 2 months for primary immunization, and a booster dose at 18 month old

Intervention: Diphtheria,Tetanus and Acellular Pertussis (Three Components) Combined Vaccine, Adsorbed

C1

subjects aged 3 months receive 3 doses of lot-1 vaccines with a interval of 30 days for primary immunization

Intervention: Diphtheria,Tetanus and Acellular Pertussis (Three Components) Combined Vaccine, Adsorbed

C2

subjects aged 3 months receive 3 doses of lot-2 vaccines with a interval of 30 days for primary immunization

Intervention: Diphtheria,Tetanus and Acellular Pertussis (Three Components) Combined Vaccine, Adsorbed

C3

subjects aged 3 months receive 3 doses of lot-3 vaccines with a interval of 30 days for primary immunization

Intervention: Diphtheria,Tetanus and Acellular Pertussis (Three Components) Combined Vaccine, Adsorbed

Outcomes

Primary Outcomes

Percentage of participants reporting systemic events

Time Frame: Day 7 post-each dose

As elicited by investigational site staff

Percentage of participants reporting local reactions

Time Frame: Day 7 post-each dose

As elicited by investigational site staff

Percentage of participants reporting adverse events

Time Frame: within 30 days post-each dose

As elicited by investigational site staff

Geometric Mean Concentrations (GMCs) of anti-pertussis toxoid , anti-filamentous hemagglutinin, anti-Pertactin, anti-diphtheria toxoid and anti-tetanic antibody

Time Frame: 1 month after Dose 3

As measured at the central laboratory

The seroconversion rate of anti-pertussis toxoid , anti-filamentous hemagglutinin, anti-Pertactin, anti-diphtheria toxoid and anti-tetanic antibody

Time Frame: 1 month after Dose 3

seroconversion is defined as post-third dose antibody concentrations ≥ protective antibody concentration if pre-vaccination concentration is \< protective antibody concentration, or ≥ 4 x protective antibody concentration if pre-vaccination concentrations ≥ protective antibody concentration.

Secondary Outcomes

  • Geometric Mean Concentrations (GMCs) of anti-pertussis toxoid , anti-filamentous hemagglutinin, anti-Pertactin, anti-diphtheria toxoid and anti-tetanic antibody(Day 30 post-dose 4 at 18 months old(booster))
  • The seropositivity rate of anti-pertussis toxoid , anti-filamentous hemagglutinin, anti-Pertactin, anti-diphtheria toxoid and anti-tetanic antibody(Day 30 post-dose 4 at 18 months old(booster))

Study Sites (4)

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