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A Clinical Study on Immunogenicity Persistence of Adsorbed 5-component Acellular Pertussis, Diphtheria and Tetanus Combined Vaccine

30. juli 2026 opdateret af: CanSino Biologics Inc.

Phase I Clinical Study on Immunogenicity Persistence of Adsorbed 5-component Acellular Pertussis, Diphtheria and Tetanus Combined Vaccine

This clinical trial will enroll 160 participants who previously took part in the Phase I clinical trial of the adsorbed acellular pentavalent (five-component) DTP-polio combination vaccine (for individuals aged 6 years and older) (Protocol No.: CTP-Tdcp-001). Approximately 3-4 mL of venous blood will be collected from each participant 2.5 years, 5 years, and 10 years after vaccination for a study on immune persistence.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Observationel

Tilmelding (Anslået)

160

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Barn
  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ja

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

This clinical trial includes 160 participants who previously took part in the Phase I clinical trial of the adsorbed acellular pentavalent (five-component) DTP-polio combination vaccine (for individuals aged 6 years and older) (Protocol No.: CTP-Tdcp-001). For the immunopersistence study, approximately 3-4 mL of venous blood will be collected from each participant 2.5 years, 5 years, and 10 years after vaccination.

Beskrivelse

Inclusion Criteria:

  • Participants in the 6-11-year-old, 12-17-year-old, and ≥18-year-old groups from the Phase I clinical trial of the adsorbed acellular pentavalent (five-component) DTP-polio combined vaccine (for individuals aged 6 and older) (Protocol No.: CTP-Tdcp-001) who were included in the protocol-defined analysis set;
  • Willingness to provide identification documents;
  • Informed consent must be obtained from the trial participant and/or guardian and/or authorized representative, and the informed consent form must be signed;
  • The trial participant and/or guardian and/or authorized representative must be able and willing to comply with the requirements of the clinical study protocol and be able to complete the full course of study follow-up.

Exclusion Criteria:

  • Received another DTP-type vaccine after completing the CTP-Tdcp-001 study;
  • Developed a DTP-related illness since the completion of the CTP-Tdcp-001 study;
  • Has a coagulation disorder;
  • In the investigator's judgment, the participant has any other factors that make them unsuitable for participation in the clinical trial.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Previously received the Tdcp vaccine at age 18 and older
Andet: Previously received the Tdcp vaccine at age 18 and older
Approximately 3-4 mL of venous blood will be collected 2.5 years, 5 years, and 10 years after vaccination for a study on immune persistence.
Previously received the Tdcp vaccine at age 12-17
Andet: Previously received the Tdcp vaccine at age 12-17
Approximately 3-4 mL of venous blood will be collected 2.5 years, 5 years, and 10 years after vaccination for a study on immune persistence.
Previously received the Tdcp vaccine at age 6-11
Andet: Previously received the Tdcp vaccine at age 6-11
Approximately 3-4 mL of venous blood will be collected 2.5 years, 5 years, and 10 years after vaccination for a study on immune persistence.
Previously received the DT vaccine at age 6-11
Andet: Previously received the DT vaccine at age 6-11
Approximately 3-4 mL of venous blood will be collected 2.5 years, 5 years, and 10 years after vaccination for a study on immune persistence.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Seropositivity rates of antibodies against DT, TT, PT, FHA, PRN, and FIM 2&3
Tidsramme: 2.5, 5, and 10 years post-vaccination
2.5, 5, and 10 years post-vaccination
Geometric mean concentrations (GMC) of antibodies against DT, TT, PT, FHA, PRN, and FIM 2&3
Tidsramme: 2.5, 5, and 10 years post-vaccination
2.5, 5, and 10 years post-vaccination
Proportions of serum anti-PRN antibody levels ≥5 and ≥10 IU/mL
Tidsramme: 2.5, 5, and 10 years post-vaccination
2.5, 5, and 10 years post-vaccination
Proportions of anti-FIM 2&3 antibody levels ≥5 and ≥10 EU/mL
Tidsramme: 2.5, 5, and 10 years post-vaccination
2.5, 5, and 10 years post-vaccination
Proportions of serum anti-DT and anti-TT antibody levels ≥0.1 IU/mL and ≥1.0 IU/mL
Tidsramme: 2.5, 5, and 10 years post-vaccination
2.5, 5, and 10 years post-vaccination

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

CanSino Biologics Inc.

Efterforskere

  • Ledende efterforsker: Xiaoyu Liu, Center for Disease Prevention and Control, Shaanxi Province

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

15. oktober 2026

Primær færdiggørelse (Anslået)

15. oktober 2033

Studieafslutning (Anslået)

15. oktober 2033

Datoer for studieregistrering

Først indsendt

30. juli 2026

Først indsendt, der opfyldte QC-kriterier

30. juli 2026

Først opslået (Faktiske)

4. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

4. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

30. juli 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • CTP-Tdcp-005

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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