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Intergenerational determinants of PCV21 acceptance in adults ≥50 years in panama: knowledge, attitudes, and practices in older adults and their caregivers

NCT ID NCT07809113

NEW Sponsor: Endpoints Site Network Source: ClinicalTrials.gov ↗

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Running, but no longer taking on new participants.
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The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

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Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
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Status unknown
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First seen Sep 09, 2026 · Last updated Sep 09, 2026

Summary

This study will look at what adults age 50 years and older in Panama know, think, and do about pneumococcal vaccination, including the 21-valent pneumococcal conjugate vaccine (PCV21). Pneumococcal disease can cause pneumonia and other serious infections, and older adults may be at higher risk of severe illness. The study will help researchers understand what supports or prevents vaccine acceptance in this population. The study will include two groups. Group A will include adults 50 to 64 years of age. Group B will include adults 65 years of age or older and a caregiver chosen by the older adult. A caregiver may be a family member or another person who regularly helps or supports the older adult. Researchers will study whether the caregiver's views about vaccines are related to the older adult's intention to receive PCV21. Participants will complete a one-time survey about pneumococcal disease, vaccines, vaccination history, health information sources, trust in vaccines, barriers to vaccination, and factors that may make vaccination easier. Surveys may be completed on paper with help from study staff or digitally using a tablet or smartphone. The survey is expected to take about 10 to 15 minutes. For older adults and caregivers in Group B, each person will complete their own survey separately so that one person's answers do not influence the other's answers. This is an observational study. No vaccine, medicine, or study product will be given as part of the study. Taking part involves answering survey questions only. The study will recruit participants from public and private health care facilities, including at least one rural or semi-urban site, to better reflect the diversity of adults in Panama. The information from this study may help health care providers, public health teams, and community organizations design clearer and more useful communication about pneumococcal vaccination for adults and their caregivers. The results may also support future recommendations for adult vaccination programs in Panama and similar settings.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 600 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Feb 2027

An estimate. Start dates often move.

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

A research network

The lead sponsor is a research network or cooperative group.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The study population will include adults aged 50 years and older in Panama who receive care through public or private health care facilities. Participants will be recruited from urban, semi-urban, and rural settings to reflect the demographic, geographic, and socioeconomic diversity of the adult population in Panama.

Ages

50 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria Older adults - all cohorts * Age 50 years or older. * Cohort A: 50-64 years. * Cohort B: 65 years or older. * Resident of Panama, including urban, semi-urban, or rural areas. * Has access to medical care through the public or private health care system. * Able and willing to provide signed informed consent. Caregivers - Cohort B only * Age 18 years or older. * Identified as the caregiver of a Cohort B older adult. * Has regular cohabitation or contact with the older adult, defined as at least once per week. * Able and willing to provide signed informed consent. Exclusion Criteria Older adults - all cohorts * Cognitive impairment that prevents the participant from providing informed consent. * Does not speak Spanish and no interpreter is available. Caregivers - Cohort B only \- Professional caregiver with no personal relationship to the older adult.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Pneumococcal immunization

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

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    Open the record ↗

  3. A doctor treating you

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Contacts and locations

Locations

  • CEVAXIN

    Panama City, Provincia de Panamá, Panama

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