Understanding how Pertussis and RSV affect asthma severity

Prevalence and Impact of Pertussis and RSV on Asthma Severity and Control

Observational Hospital Clinico Universitario de Santiago · NCT06286007

This study is trying to see how infections from whooping cough and RSV affect asthma symptoms in adults over two years.

Quick facts

Study typeObservational
Enrollment784 (estimated)
Ages18 Years to 99 Years
SexAll
SponsorHospital Clinico Universitario de Santiago Academic / other
Locations1 site (Santiago de Compostela, A Coruña)
Trial IDNCT06286007 on ClinicalTrials.gov

What this trial studies

This observational study aims to estimate the annual incidence of Bordetella pertussis and RSV infections in adults with asthma. Participants aged 18 and over will be monitored for asthma exacerbations and symptoms of acute respiratory infections over a two-year period. The study will utilize PCR testing to identify infections at specific time points after symptom onset. Conducted across 35 centers in Spain, the study will gather valuable data on the impact of these infections on asthma control.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and over with a diagnosis of asthma for at least one year.

Not a fit: Patients with recent respiratory infections or other significant respiratory diseases may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved management strategies for asthma patients by understanding the role of infections in exacerbations.

How similar studies have performed: While similar studies have explored the impact of infections on asthma, this specific approach focusing on pertussis and RSV is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult patient (age 18 years and over)
* Diagnosed with asthma at least one year prior to the date of enrolment.
* Patients who, in the opinion of the investigator, can and will comply with the requirements of the study protocol for the duration of the follow-up period (e.g. agree to provide samples for testing, able to attend for testing upon asthma exacerbation and/or ARI symptoms occurring)
* Patients who are able to provide written informed consent.

Exclusion Criteria:

* Patients with a prior history of pertussis in the last 12 months
* Patients with ARI within the 2 weeks prior to enrolment
* Patients who have another respiratory disease other than asthma, alcohol or drug abuse at the time of being included in the study, or an active oncological disease (patients in treatment or follow-up for oncological disease) or pregnant women.
* Patients treated with immunosuppressive or immunomodulating agents not related to asthma diagnosis. will be excluded.
* Patients vaccinated for RSV will be also excluded (NOTE: -Patients that have received an RSV (investigational) vaccine or medicine for any of the above, should be excluded from the study from the beginning. Patients that might be vaccinated in the upcoming years, while the study is still ongoing, can enrol. However, from the moment they receive a vaccine, they should be excluded and no additional data will be collected. Data collected during the study up until the time of vaccination will still be included in the analysis).
* Patients vaccinated for B. Pertussis during the previous 12 months will be also excluded.
* Patients who plan to move during the study period will be excluded.

Where this trial is running

Santiago de Compostela, A Coruña

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions AsthmaPertussisRSV InfectionExacerbations
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.