Phase I/II Clinical Trial of 26-valent Pneumococcal Conjugate Vaccine

NCT ID: NCT06703203

Last Updated: 2025-01-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ENROLLING_BY_INVITATION

Clinical Phase

PHASE1/PHASE2

Total Enrollment

450 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-08-27

Study Completion Date

2026-06-30

Brief Summary

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The purpose of this experiment is to evaluate the safety and immunogenicity of the 26 valent pneumococcal conjugate vaccine in the population aged 2 months and above.

Detailed Description

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A single-center, randomized, double-blind, active-controlled trial design (Phase I/II) was used. In addition, according to the requirements in the approval letter of this product (2024LP01053), serum standards need to be established for the newly added types (24F, 35B). Therefore, a calibration group is set and an open study design is adopted.

Conditions

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Pneumococcal Vaccines

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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≥60 years old age group (for phase Ⅰ)

There are 30 subjects in ≥60 years old age group, randomly assigned to the experimental group and the control group in a 2:1 ratio.

Group Type OTHER

26-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As an experimental group. The active ingredient of 26-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 26 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

23-Valent pneumococcal polysaccharide vaccine

Intervention Type BIOLOGICAL

As a control group. The effective ingredients of 23-valent pneumococcal polysaccharide vaccine are 23 serotypes of pneumococcal capsular polysaccharides. Administer one dose of 0.5mL each time.

18-59 years old age group (for phase Ⅰ)

There are total 40 subjects in 18-59 age group. Among them, 30 subjects were randomly assigned to the experimental group and the control group in a 2:1 ratio. In addition, other 10 subjects aged 18-55 to receive the experimental vaccine as the serum calibration test population.

Group Type OTHER

26-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As an experimental group. The active ingredient of 26-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 26 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

23-Valent pneumococcal polysaccharide vaccine

Intervention Type BIOLOGICAL

As a control group. The effective ingredients of 23-valent pneumococcal polysaccharide vaccine are 23 serotypes of pneumococcal capsular polysaccharides. Administer one dose of 0.5mL each time.

6-17 years old age group (for phase Ⅰ)

There are 30 subjects in 6-17 years old age group, randomly assigned to the experimental group and the control group in a 2:1 ratio.

Group Type OTHER

26-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As an experimental group. The active ingredient of 26-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 26 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

23-Valent pneumococcal polysaccharide vaccine

Intervention Type BIOLOGICAL

As a control group. The effective ingredients of 23-valent pneumococcal polysaccharide vaccine are 23 serotypes of pneumococcal capsular polysaccharides. Administer one dose of 0.5mL each time.

2-5 years old age group (for phase Ⅰ/Ⅱ)

There are total 230 people in 2-5 years old age group. Among them, there were 30 subjects included in the phase Ⅰ clinical trial and were randomly assigned to the experimental group and the control group in a 2:1 ratio. And the other 200 people were included for phase Ⅱ and were randomly assigned to the experimental group and the control group in a 1:1 ratio.

Group Type OTHER

26-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As an experimental group. The active ingredient of 26-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 26 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

13-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As a control group. The active ingredient of 13-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 13 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

13-23 months old age group (for phase Ⅰ)

There are 30 subjects in 13-23 months old age group, randomly assigned to the experimental group and the control group in a 2:1 ratio.

Group Type OTHER

26-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As an experimental group. The active ingredient of 26-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 26 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

13-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As a control group. The active ingredient of 13-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 13 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

7-11 months old age group (for phase Ⅰ)

There are 30 subjects in 7-11 months old age group, randomly assigned to the experimental group and the control group in a 2:1 ratio.

Group Type OTHER

26-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As an experimental group. The active ingredient of 26-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 26 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

13-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As a control group. The active ingredient of 13-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 13 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

3 months old age group (for phase Ⅰ)

There are 30 subjects in 3 months old age group, randomly assigned to the experimental group and the control group in a 2:1 ratio.

Group Type OTHER

26-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As an experimental group. The active ingredient of 26-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 26 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

13-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As a control group. The active ingredient of 13-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 13 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

2 months old age group (for phase Ⅰ)

There are 30 subjects in 2 months old age group, randomly assigned to the experimental group and the control group in a 2:1 ratio.

Group Type OTHER

26-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As an experimental group. The active ingredient of 26-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 26 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

13-Valent pneumococcal conjugate vaccine

Intervention Type BIOLOGICAL

As a control group. The active ingredient of 13-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 13 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

Interventions

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26-Valent pneumococcal conjugate vaccine

As an experimental group. The active ingredient of 26-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 26 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

Intervention Type BIOLOGICAL

23-Valent pneumococcal polysaccharide vaccine

As a control group. The effective ingredients of 23-valent pneumococcal polysaccharide vaccine are 23 serotypes of pneumococcal capsular polysaccharides. Administer one dose of 0.5mL each time.

Intervention Type BIOLOGICAL

13-Valent pneumococcal conjugate vaccine

As a control group. The active ingredient of 13-valent pneumococcal conjugate vaccine is the capsular polysaccharide of 13 pneumococcal serotypes conjugated to the tetanus toxoid carrier protein. Administer one dose of 0.5mL each time.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* The subject is 2-3 months old (minimum 6 weeks old), 7 months old and above at the time of enrollment, and the legal guardian and/or the subject can provide legal identification certificate;
* The subjects themselves and/or their legal guardians understand the vaccination and trial procedures, voluntarily participate in the trial and sign the informed consent form;
* The subject and/or legal guardian can comply with the clinical trial protocol, have the ability to use thermometer, scale and fill in diary card and contact card as required;
* Female subjects of childbearing potential agree to take effective contraceptive measures from enrollment to 6 months after vaccination.
* For calibration group subjects: 18 to 55 years of age, ≥ 50 kg for males or ≥ 45 kg for females.

Exclusion Criteria

* Axillary body temperature ≥ 37.3 ℃ on the day of enrollment;
* History of infectious diseases caused by Streptococcus pneumoniae confirmed by bacterial culture within 3 years;
* Have received or plan to receive a Streptococcus pneumoniae vaccine outside the trial protocol, including marketed or other investigational Streptococcus pneumoniae vaccines;
* Pregnant or lactating women; Previous history of severe allergy to any vaccine or drug, such as urticaria, dyspnea, angioneurotic edema, anaphylactic shock, Henoch-Schonlein purpura, thrombocytopenic purpura;
* Allergic to any component of the investigational vaccine;
* Suffering from severe respiratory diseases (such as severe asthma), heart diseases, liver diseases, kidney diseases, congenital malformations, developmental disorders and genetic defects (including but not limited to: down syndrome, thalassemia major, etc.) that may interfere with the conduct or completion of the trial;
* Diagnosed with congenital or acquired immunodeficiency, or suspected to have serious chronic disease or systemic disease that may interfere with the conduct or completion of the trial, such as: active tuberculosis, human immunodeficiency virus (HIV) infection, etc.;
* Encephalopathy, uncontrolled epilepsy, convulsion and other progressive neurological diseases, or a history or family history of mental illness;
* Contraindications for intramuscular injection such as thrombocytopenia, any coagulation disorder or receiving anticoagulant therapy;
* Asplenia or splenectomy, functional asplenia due to any condition;
* Immunosuppressant therapy, cytotoxic therapy or corticosteroid therapy within 3 months prior to vaccination, such as systemic glucocorticoid therapy for more than 2 consecutive weeks, such as prednisone or similar drugs \> 5 mg/day (excluding corticosteroid spray therapy for allergic rhinitis, surface corticosteroid therapy for acute non-complicated dermatitis);
* Received blood products or immunoglobulins within 3 months prior to enrollment (hepatitis B immunoglobulin is acceptable), or planned to be used during the trial (before the last immunogenicity blood sample collection);
* Within 3 days before the first dose of vaccine, the patient has acute illness or is in acute attack of chronic disease, or has used antipyretic, analgesic or anti-allergic drugs (such as: acetaminophen, ibuprofen, aspirin, etc.);
* Received non-live vaccine within 7 days (≤ 7 days) or live attenuated vaccine within 14 days (≤ 14 days) prior to enrollment;
* Hypertension (systolic blood pressure ≥ 140 mmHg and/or diastolic blood pressure ≥ 90 mmHg, applicable to adults);
* Abnormal and clinically significant laboratory test results, which are not suitable for enrollment as determined by the investigator (applicable to subjects aged 2 years and older in Phase I);
* Birth weight \< 2.5 kg, premature delivery (gestational age \< 37 weeks), history of abnormal labor process, history of asphyxia rescue, history of nerve organ damage, history of pathological jaundice confirmed by diagnosis;
* For Standardised Subjects:

① Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) ≥ 50 U/L; Or hemoglobin ≤ 115 g/L (female)/120g/L (male); Any positive serology for hepatitis B, hepatitis C, HIV, or syphilis.
* Plans to move before the end of the trial or leave the area for an extended period of time during scheduled trial visits;
* Ongoing participation or planning to participate in other clinical trials (vaccines, drugs, medical devices, etc.) in the near future;
* Subject has any condition that, in the opinion of the investigator, may interfere with the evaluation of the objectives of the trial.
Minimum Eligible Age

2 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Beijing Zhifei Lvzhu Biopharmaceutical Co., Ltd

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Henan Provincial Center for Disease Control and Prevention

Shangqiu, Henan, China

Site Status

Countries

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China

Other Identifiers

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202417AB

Identifier Type: -

Identifier Source: org_study_id

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