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Human Papilloma Virus InfectionPhase 4NCT05439083

Immunogenicity of 9-valent HPV Vaccine

A Phase 4 study testing 9-valent HPV vaccine in people with Human Papilloma Virus Infection, run by Talia Sainz Costa at 1 site in Spain.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Human papillomavirus (HPV) causes the most prevalent sexually transmitted infections in the world. The nonavalent HPV vaccine (9vHPV) provides protection against 9 high-risk HPV serotypes, responsible for causing approximately 90% of cervical and other HPV-related anogenital cancers, as well as 90% of genital warts. Read more about this study

Who is it for?
Ages 9 to 18 yearsHealthy volunteers can take part
Conditions the study is for
Human Papilloma Virus Infection
What is being tested?
9-valent HPV vaccine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
120 participants
Where
1 siteSpain
Study dates
7 Mar 2023to 1 Mar 2025
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 9 to 18 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Who may be able to join

  • Children or adolescents 9 to <18 years of age
  • Willing to sign consent/assent form
  • If HIV positive, under ART and undetectable viral load and CD4 cell count >200/mm3 (at least 6 months)
  • If the patient has received chemotherapy or is a SOT/HSCT recipient, referred for immunizations after adequate immune reconstitution according to routine clinical practice

Who cannot join

  • Previous history of warts and/or anal cancer.
  • Previous immunization with any HPV vaccine.
  • Age below 9.
  • Patients who for any reason should not be included in the study according to the evaluation of the research team.

Trial locations and contacts

1 site in 1 country.

Spain1 site, 1 recruiting
  • Hospital Universitario La paz

    Madrid, 28046

    Talía Sainz Acosta, MD

    Recruiting

Other trials in Spain

About this study

Official title: Immunogenicity of 9-valent HPV Vaccine in Immunocompromised Children and Adolescents

Human papillomavirus (HPV) causes the most prevalent sexually transmitted infections in the world. The nonavalent HPV vaccine (9vHPV) provides protection against 9 high-risk HPV serotypes, responsible for causing approximately 90% of cervical and other HPV-related anogenital cancers, as well as 90% of genital warts. The risk of cancer is substantially increased among immunocompromised patients.

Although studies have demonstrated seroprotection among children and adolescents, boys and girls, with the 9vHPV vaccine, the immunogenicity of this vaccine has been poorly explored in immunocompromised children and adolescents (including transplant patients, and those infected with human immunodeficiency virus (HIV)). Several factors, including the immunological consequences of vertically acquired infection, immunosuppressive therapies and age, could lead to an increased risk of infection in children and adolescents who are immunocompromised. Lower immunogenicity in these populations. These children may have a poor response to vaccines and therefore require additional doses. Markers such as CD4/CD8 or torque teno virus (TTV) replication could be linked to immunogenicity and thus serve as predictors of efficacy for routine clinical practice.

Being tested
9-valent HPV vaccine
Medical subject headings
Papillomavirus Infections

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • 9-valent HPV vaccineBiological

    All participants will receive the immunization schedule according to guidelines: immunosuppressed patients will receive a three-dose schedule: 0.5 mL intramuscular injection of 9vHPV at entry plus an additional dose at month 2 and month 6. Healthy controls aged 9-14 years will receive a two-dose schedule: 0 and 6 months.

Study groups in NCT05439083
Study groupRoleWhat they receive
Immunosuppressed GroupExperimentalN=90 Immunosuppressed patients, consisting of HIV-infected children and adolescents, hematopoietic stem cell transplant (HSCT) recipients, solid organ transplant (SOT) recipients and post-chemotherapy patients (PCT) under follow up at Hospital La Paz in Madrid Spain. 9-valent HPV vaccine: three-dose schedule: Months 0-2-6.
Receives: Biological: 9-valent HPV vaccine
Control GroupOtherN=30 Healthy controls aged 9-14 9-valent HPV vaccine: two-dose schedule: Months 0-6.
Receives: Biological: 9-valent HPV vaccine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Seroconversion of subjects from baseline to month 7 (determined by serum anti-HPV antibody titers)

    Percentage of subjects seroconverting from baseline to month 7

    Measured: From baseline to month 7

  2. Seroconversion of subjects from baseline to month 12 (determined by serum anti-HPV antibody titers)

    Percentage of subjects maintaining antibody titers 12 months after immunization.

    Measured: From baseline to month 12

  3. Seroconversion of subjects from baseline to month 18 (determined by serum anti-HPV antibody titers)

    Percentage of subjects maintaining antibody titers 18 months after immunization.

    Measured: From baseline to month 18

Secondary outcomes (3)
  1. Ratio of geometric mean serum antibody titers (GMTs)

    GMTs from baseline to month 7

    Measured: From baseline to month 7

  2. Delta of geometric mean serum antibody titers

    Delta of geometric mean serum antibody titers from 1 to 12 months after immunization.

    Measured: From 1 to 12 months

  3. Percentage of subjects seroconverting from baseline to month 7

    Percentage of subjects seroconverting from baseline to month 7 in each of the study populations.

    Measured: From baseline to month 7

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Jun 2022
  2. Study start7 Mar 2023
  3. Primary completion1 Sep 2024 (estimated)
  4. Study completion1 Mar 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Health services research
Allocation
Non-randomised
Intervention model
Parallel groups
Model description
Two groups of patients: Immunosuppressed Group: N=90 Immunosuppressed patients, consisting of HIV-infected children and adolescents, hematopoietic stem cell transplant (HSCT) recipients, solid organ transplant (SOT) recipients and post-chemotherapy patients (PCT) under follow-up at Hospital La Paz in Madrid Spain. Control Group: N=30 Healthy controls aged 9-14. Both groups receive the 9-valent HPV vaccine.
Masking
None (open label)
Enrolment
120 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05439083
Sponsor's protocol ID
19042021/22
Status last verified
Mar 2024
First submitted
27 Jun 2022
Last updated
8 Mar 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing 9-valent HPV vaccine in people with Human Papilloma Virus Infection, run by Talia Sainz Costa at 1 site in Spain.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 8 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Talia Saínz Costa (+ 34 91 727 74 43, talia.sainz@salud.madrid.org), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Seroconversion of subjects from baseline to month 7 (determined by serum anti-HPV antibody titers) (time frame: From baseline to month 7). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Mar 2024.

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