ClinicalTrials.gg
Active, not recruitingNCT06208683Updated Jan 17, 2024

The Immunogenicity and Safety of the Booster Doses of a Live-attenuated Mumps Vaccine in Junior High School Students

A Phase 4 interventional study of Mumps vaccine, Live (MV) and Influenza Vaccine, inactivated, quadrivlent(QIV) in Mumps and Influenza, sponsored by Sinovac Biotech Co., Ltd. Active, not recruiting at 3 sites in China. Per ClinicalTrials.gov, last updated 2024-01-17.

Sponsored by Sinovac Biotech Co., Ltd · Phase 4, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by Feb 2024, 2 years 9 months ago, but the record still lists the study as active, not recruiting.
Phase
Phase 4
Study type
Interventional
Enrollment
400
Allocation
Randomized
Sex
All
01

Study summary

This study is a randomized, controlled, open-label phase Ⅳ clinical trial of a live attenuated mumps vaccine manufactured by Sinovac (Dalian) Vaccine Technology Co., Ltd. The purpose of this study is to evaluate the immunogenicity and safety of the booster doses of a mumps vaccine administrated alone and concomitantly with a quadrivalent inactivated influenza vaccine in healthy junior high school students. And the cross-neutralization of mumps vaccine immune serum and mumps virus strains

Read the detailed description

This study is an open-lable, randomised, controlled phase Ⅳ clinical trial in healthy junior high school students to the immunogenicity and safety of the booster doses of a mumps vaccine (MV) administrated alone and concomitantly with a quadrivalent influenza vaccine (QIV) in healthy junior high school students. The experimental vaccine was manufactured by Sinovac (Dalian) Vaccine Technology Co., Ltd. A total of 400 healthy students will be enrolled, including 300 students who have received one dose of mumps-containing vaccine (MCV) before vaccination, and 100 students who have received two doses of mumps-containing vaccine before vaccination. 300 students with a history of 1 dose of MCV will be randomly divided into 3 groups in a ratio of 1:1:1, and will receive 1 dose of MV alone, 1 dose of QIV alone, or 1 dose of MV and 1 dose of QIV simultaneously. Students with a history of 2 doses of MCV received 1 dose of MV alone. Blood samples were collected before and 30 days after vaccination. Pre-vaccination blood samples were used to detect antibody levels of measles, mumps, influenza and varicella, and post-vaccination blood samples were used to detect mumps antibodies and/or influenza antibodies corresponding to the vaccination.

02

Conditions studied

  • Mumps
  • Influenza
03

In context

Mumps

83 studies on the registry are indexed under Mumps; 8 are open to participants now.

This study's enrollment of 400 is below the median of 897 across 70 interventional studies indexed under Mumps.

Browse Mumps studies →

Lead sponsor

Sinovac Biotech Co., Ltd is the lead sponsor of 93 studies on the registry; 19 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Healthy junior high school students;
  • subjects and/or guardians who can understand and voluntarily sign the form (For subjects aged 8-17 years, both subjects and guardians need to sign the informed consent form)
  • Provision of valid identification.;
  • History of 1 or 2 doses of mumps-containing vaccine;

Exclusion criteria

Exclusion Criteria:

  • History of mumps or have completed 3 doses of mumps-containing vaccine;
  • Receipt of the current seasonal influenza vaccine (except subjects in Arm 4)
  • History of asthma or allergy to the vaccine or vaccine components, or serious adverse reactions to the vaccine, such as urticaria, dyspnea,and angioedema;
  • Congenital malformations or developmental disorders, genetic defects, severe malnutrition;
  • disease (such as systemic lupus erythematosus) or a state of immunodeficiency / (such as AIDS, after organ transplantation);
  • Severe chronic diseases, severe cardiovascular diseases, hypertension and diabetes that cannot be controlled by drugs, liver or kidney diseases, malignant tumors, etc.;
  • Severe neurological disease (epilepsy, convulsions or convulsions) or mental illness;
  • Thyroid disease or history of thyroidectomy, asplenia, functional asplenia, any condition resulting in asplenia or splenectomy;
  • Abnormal coagulation function diagnosed by a doctor (such as coagulation factor deficiency, coagulation disease, abnormality) or obvious bruising or coagulation disorder;
  • Immunosuppressive therapy, cytotoxic therapy, inhaled (excluding corticosteroid spray therapy for allergic rhinitis, topical corticosteroid therapy for acute uncomplicated dermatitis) within the past 6 months;
  • Receipt of blood products in the past 3 months;
  • Receipt of other drugs in the past 30 days;
  • Receipt of attenuated in the past 28 days;
  • Receipt of inactivated or subunit vaccines in the past 7 days;
  • Onset of various acute or chronic diseases within 7 days prior to the study;
  • Axillary temperature >37.0°C;
  • Participation in other clinical trials before enrollment and during the follow-up period, or a plan to participate in other clinical trials within 3 months.
  • Any other factors that are unsuitable for participating in this clinical trial according to the investigator's judgment
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

05

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
400 participants (actual)

Study arms

  • Experimental
    1MCV: MV

    100 students with a history of 1 dose of MCV will receive 1 dose of MV.

    Biological: Mumps vaccine, Live (MV)

  • Experimental
    1MCV: QIV

    100 students with a history of 1 dose of MCV will receive 1 dose of QIV.

    Biological: Influenza Vaccine, inactivated, quadrivlent(QIV)

  • Experimental
    1MCV: MV +QIV

    100 students with a history of 1 dose of MCV will receive 1 dose of MV and 1 dose of QIV simultaneously.

    Biological: Mumps vaccine, Live (MV) · Biological: Influenza Vaccine, inactivated, quadrivlent(QIV)

  • Experimental
    2MCV: MV

    100 students with a history of 2 dose of MCV will receive 1 dose of MV.

    Biological: Mumps vaccine, Live (MV)

Interventions

  • BiologicalMumps vaccine, Live (MV)

    0.5mL per dose,containing ≥3.7 lg CCID50 live mumps virus

  • BiologicalInfluenza Vaccine, inactivated, quadrivlent(QIV)

    0.5mL per dose, containing 4 strains of influenza virus recommended by the WHO, 15ug of each strain.

06

What researchers measure

Primary outcomes

  1. Geometric mean concentrations (GMCs) of mumps antibody

    GMC s of mumps antibody 30 days after the vaccination of MV

    Time frame: 30 days after the vaccination of MV

Secondary outcomes

  1. Geometric mean increases (GMIs) of mumps antibody

    Geometric mean increases (GMIs) of mumps antibody 30 days after the vaccination of MV

    Time frame: 30 days after the vaccination of MV

  2. Seroconversion rate of mumps antibody

    Seroconversion rate of mumps antibody 30 days after the vaccination of MV

    Time frame: 30 days after the vaccination of MV

  3. Seropositivity rate of mumps antibody

    Seropositivity rate of mumps antibody 30 days after the vaccination of MV

    Time frame: 30 days after the vaccination of MV

  4. Geometric mean titers (GMTs) of influenza antibody

    Geometric mean titers (GMTs) of influenza antibody 30 days after the vaccination of QIV

    Time frame: 30 days after the vaccination of QIV

  5. Geometric mean increases (GMIs) of influenza antibody

    Geometric mean increases (GMIs) of influenza antibody 30 days after the vaccination of QIV

    Time frame: 30 days after the vaccination of QIV

  6. Seroconversion rate of influenza antibody

    Seroconversion rate of influenza antibody 30 days after the vaccination of QIV

    Time frame: 30 days after the vaccination of QIV

  7. Seropositivity rate of influenza antibody

    Seropositivity rate of influenza antibody 30 days after the vaccination of QIV

    Time frame: 30 days after the vaccination of QIV

  8. Geometric mean concentrations (GMCs) of mumps antibody 30 days after the simultaneous vaccination of MV and QIV

    Geometric mean concentrations (GMCs) of mumps antibody

    Time frame: 30 days after the simultaneous vaccination of MV and QIV

  9. Geometric mean titers (GMTs) of influenza antibody 30 days after the simultaneous vaccination of MV and QIV

    Geometric mean titers (GMTs) of influenza antibody

    Time frame: 30 days after the simultaneous vaccination of MV and QIV

  10. Geometric mean increases (GMIs) of mumps antibody and influenza antibody

    Geometric mean increases (GMIs) of mumps antibody and influenza antibody 30 days after the simultaneous vaccination of MV and QIV

    Time frame: 30 days after the simultaneous vaccination of MV and QIV

  11. Seroconversion rate of mumps antibody and influenza antibody

    Seroconversion rate of mumps antibody and influenza antibody 30 days after the simultaneous vaccination of MV and QIV

    Time frame: 30 days after the simultaneous vaccination of MV and QIV

  12. Seropositivity rate of mumps antibody and influenza antibody

    Seropositivity rate of mumps antibody and influenza antibody 30 days after the simultaneous vaccination of MV and QIV

    Time frame: 30 days after the simultaneous vaccination of MV and QIV

  13. The incidence of adverse reactions 0-7 days after vaccination

    The incidence of adverse reactions 0-7 days after vaccination

    Time frame: 0-7 days after vaccination

  14. The incidence of adverse reactions 0-14 days after vaccination

    The incidence of adverse reactions 0-14 days after vaccination

    Time frame: 0-14 days after vaccination

  15. The incidence of adverse reactions 0-30 days after vaccination

    The incidence of adverse reactions 0-30 days after vaccination

    Time frame: 0-30 days after vaccination

  16. Geometric mean concentrations (GMCs) of measles antibody before vaccination

    Geometric mean concentrations (GMCs) of measles antibody before vaccination

    Time frame: before vaccination

  17. Geometric mean concentrations (GMCs) of rubella antibody before vaccination

    Geometric mean concentrations (GMCs) of rubella antibody before vaccination

    Time frame: before vaccination

  18. Geometric mean titers (GMTs) of varicella-zostor antibody before vaccination

    Geometric mean titers (GMTs) of varicella-zostor antibody before vaccination

    Time frame: before vaccination

  19. Geometric mean concentrations (GMCs) of mumps antibody before vaccination

    Geometric mean concentrations (GMCs) of mumps antibody before vaccination

    Time frame: before vaccination

  20. Geometric mean titers (GMTs) of influenza antibody before vaccination

    Geometric mean titers (GMTs) of influenza antibody before vaccination

    Time frame: before vaccination

  21. Seropositivity rate of measles antibody before vaccination

    Seropositivity rate of measles antibody before vaccination

    Time frame: before vaccination

  22. Seropositivity rate of rubella antibody before vaccination

    Seropositivity rate of rubella antibody before vaccination

    Time frame: before vaccination

  23. Seropositivity rate of varicella-zostor antibody before vaccination

    Seropositivity rate of varicella-zostor antibody before vaccination

    Time frame: before vaccination

  24. Seropositivity rate of mumps antibody before vaccination

    Seropositivity rate of mumps antibody before vaccination

    Time frame: before vaccination

  25. Seropositivity rate of influenza antibody before vaccination

    Seropositivity rate of influenza antibody before vaccination

    Time frame: before vaccination

  26. Cross-neutralizing antibody titer of mumps vaccine

    Cross-neutralizing antibody titer of mumps vaccine against different genotypes of mumps virus

    Time frame: 30 days after the vaccination of MV alone or simultaneously with QIV

07

Study locations

3 sites
  • Qindu Distric Center for Disease Prevention and Control
    Xianyang, Shaanxi 712099, China
  • Xingping Center for Disease Prevention and Control
    Xianyang, Shaanxi 713199, China
  • Yuyang Distict Center for Disease Prevention and Control
    Yulin, Shaanxi 719054, China
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 17, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06208683
Responsible party
Sponsor
First posted
Jan 17, 2024
Start date
Nov 4, 2023
Primary completion
Feb 2, 2024 (estimated)
Completion
Dec 1, 2024 (estimated)
Last update
Jan 17, 2024

Study contacts

Weijun Hu, Master
principal investigator · Shaanxi Provincial Center for Disease Prevention and Control

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Nov 2023. You cannot join it, but the record below documents what was studied.

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