Clinical Trial of the Adsorbed Acellular Pertussis (Tricomponent) DTaP-Haemophilus Influenzae Type b (Conjugate)-ACYW135 Group Meningococcal (Conjugate) Combined Vaccine
A Randomized, Partially Blinded, Dose-Exploratory, Active/Placebo-Controlled Phase I Clinical Trial Evaluating the Safety and Immunogenicity of the Adsorbed Acellular Pertussis (Tricomponent) DPT-Hib (Conjugate)-ACYW135-Group B Meningococcal (Conjugate) Combined Vaccine in Individuals Aged 2 Months to 6 Years
1 other identifier
interventional
260
1 country
1
Brief Summary
This clinical trial is conducted in two parts. Part One employs a randomized, partially blinded, dose-escalation, partially active-controlled design. Part Two utilizes a randomized, blinded, placebo-controlled design. Part One is divided into four stages based on age and vaccine dose levels. Part Two consists of the 2-month-old vaccine/placebo groups.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Dec 2025
Typical duration for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 25, 2025
CompletedFirst Posted
Study publicly available on registry
October 2, 2025
CompletedStudy Start
First participant enrolled
December 19, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
February 1, 2029
December 31, 2025
September 1, 2025
3.1 years
September 25, 2025
December 25, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Incidence of adverse reactions
Parts I and II: Within 14 days after each dose
Secondary Outcomes (25)
Incidence of adverse events
Part I Sections 1A, 2A, 2B: Within 14 days after exemption
Incidence of adverse events
Part I Sections 3A, 3B, 3C, 3D, 3E, 4A and Part II: Within 14 days after each dose
Incidence of adverse reactions/events
Part I Sections 1A, 2A, 2B: Within 30 minutes after exemption
Incidence of adverse reactions/events
Part I Sections 3A, 3B, 3C, 3D, 3E, 4A and Part II: Within 30 minutes after each dose
Incidence of adverse reactions/events
Part I Sections 1A, 2A, 2B: Within 30 days after exemption
- +20 more secondary outcomes
Study Arms (11)
Part I, 1A, low dose, 6 year-old
EXPERIMENTALOne dose of DTcP-Hib-MCV4 on Day 0
Part I, 2A, low dose, 18~24 month-old
EXPERIMENTALOne dose of DTcP-Hib-MCV4 on Day 0
Part I, 2B, high dose, 18~24 month-old
EXPERIMENTALOne dose of DTcP-Hib-MCV4 on Day 0
Part I, 3A, low dose, 2 month-old
EXPERIMENTAL3 doses of DTcP-Hib-MCV4 at 0, 2, and 4 months, followed by a booster dose at 18-24 months of age.
Part I, 3B, high dose, 2 month-old
EXPERIMENTAL3 doses of DTcP-Hib-MCV4 at 0, 2, and 4 months, followed by a booster dose at 18-24 months of age.
Part I, 3C, 2 month-old
ACTIVE COMPARATOR3 doses of DTcP at 0, 2, and 4 months, followed by a booster dose at 18-24 months of age.
Part I, 3D, 2 month-old
ACTIVE COMPARATOR3 doses of Hib at 0, 2, and 4 months, followed by a booster dose at 18-24 months of age.
Part I, 3E, 2 month-old
ACTIVE COMPARATOR3 doses of MCV4 at 0, 2, and 4 months, followed by a booster dose at 18-24 months of age.
Part I, 4A, 3 month-old
ACTIVE COMPARATOR3 doses of MCV4 at 0, 1, and 2 months, followed by a booster dose at 12 months of age.
Part II, Vaccine Group, 2 month-old
EXPERIMENTAL3 doses of MCV4 at 0, 2, and 4 months.
Part II, Placebo Group, 2 month-old
PLACEBO COMPARATOR3 doses of NS at 0, 2, and 4 months.
Interventions
1 dose of DTcP-Hib-MCV4 vaccine (0.5ml) on day 0
1 dose of DTcP-Hib-MCV4 vaccine (0.5ml) on day 0
3 doses of DTcP (0.5ml) at 0, 2, and 4 months, followed by a booster dose at 18-24 months of age.
3 doses of Hib (0.5ml) at 0, 2, and 4 months, followed by a booster dose at 18-24 months of age.
3 doses of MCV4 (0.5ml) at 0, 2, and 4 months, followed by a booster dose at 18-24 months of age.
3 doses of MCV4 (0.5ml) at 0, 1, and 2 months, followed by a booster dose at 12 months of age.
3 doses of NS (0.5ml) at 0, 2, and 4 months.
Eligibility Criteria
You may qualify if:
- Participants aged 2 months (60-89 days), 3 months (90-119 days), 18-24 months, and 6 years of age, with legal guardians or authorized representatives willing to provide identification documentation;
- Legal guardians or authorized representatives provide informed consent, voluntarily sign the informed consent form, and are able to comply with the requirements of the clinical trial protocol;
- Individuals aged 18-24 months who have completed a 3-dose DTaP-containing vaccine series and a meningococcal-containing vaccine primary series, but have not received a DTaP-containing booster dose;
- Individuals aged 6 years who have completed 4 doses of DTaP-containing vaccine but have not received the 5th DTaP-containing vaccine dose; and have only completed the first meningococcal-containing vaccine booster dose, without receiving the second meningococcal-containing vaccine booster dose at age 6.
You may not qualify if:
- Infants born prematurely (delivery before 37 weeks gestation) or with low birth weight (\<2500g) at 2 months (60-89 days) or 3 months (90-119 days) of age;
- Infants aged 2 months (60-89 days) or 3 months (90-119 days) with history of abnormal labor, asphyxia requiring resuscitation, or neurological impairment;
- Severe congenital malformations or developmental disorders, genetic defects, or severe malnutrition;
- History of severe adverse reactions or anaphylaxis to vaccines or vaccine components, such as urticaria, dyspnea, angioedema;
- History of epilepsy, convulsions, seizures, cerebral palsy, psychiatric disorders, or family history thereof; or history of progressive neurological diseases (e.g., Guillain-Barré syndrome, brachial plexus neuritis);
- Diagnosed with congenital or acquired immunodeficiency, HIV infection, lymphoma, leukemia, systemic lupus erythematosus (SLE), juvenile rheumatoid arthritis (JRA), or other autoimmune diseases;
- Acute illness (e.g., fever ≥38.5°C, diarrhea) or acute exacerbation of chronic disease within 3 days prior to receiving the investigational product;
- Known or suspected severe chronic diseases (including: severe respiratory disease, severe cardiovascular disease, liver/kidney disease, severe dermatology conditions, malignancies, etc.);
- Current anal abscess or severe eczema;
- Clinically diagnosed coagulation disorders (e.g., factor deficiency, bleeding disorders, platelet abnormalities) or significant bruising/coagulation impairment;
- Asplenia, functional asplenia, or splenectomy due to any cause;
- Continuous treatment with immunosuppressants, immunomodulators, or cytotoxic agents (exceeding 10 days) within the past 6 months; inhaled or topical steroids are permitted;
- Receipt of blood products or immunoglobulins (excluding hepatitis B immunoglobulin) within the past 3 months;
- Received an injectable live attenuated vaccine within 14 days, or any other vaccine within 7 days;
- Taken antipyretic analgesics or antiallergic medications within 3 days;
- +13 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Liangyuan District Center for Disease Control and Prevention, Shangqiu City
Shangqiu, Henan, China
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Yanxia Wang
Henan Center for Disease Control and Prevention
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Masking Details
- Part One: Partial Blind Method Design Part Two: Blind Method Design
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 25, 2025
First Posted
October 2, 2025
Study Start
December 19, 2025
Primary Completion (Estimated)
February 1, 2029
Study Completion (Estimated)
February 1, 2029
Last Updated
December 31, 2025
Record last verified: 2025-09