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Timing of Influenza Vaccination in Patients With Heart Failure (FLU-HF)

A

Abhinav Sharma

Status

Enrolling

Conditions

Heart Failure

Treatments

Biological: Influenza vaccination administration

Study type

Interventional

Funder types

Other

Identifiers

NCT05507502
2021-7425

Details and patient eligibility

About

Heart failure (HF) is one of the most common causes of hospital admission in Canada and costs the Canadian healthcare system over $1 billion annually. Influenza vaccination is an inexpensive strategy to prevent influenza infections and reduce an important trigger for HF decompensation and hospital readmission. Yet, the optimal timing of vaccine administration remains unclear. When patients with HF are admitted to the hospital with an acute decompensation in advance of, or during, the 'flu season', this can be an ideal time to administer the vaccine. However, patients with acute HF decompensation have significant inflammatory injury, and may have substantially impaired immune responses; thus vaccine administration while admitted during an acute decompensated HF episode may not lead to high anti-influenza antibody titres. A more effective strategy can be to vaccinate after the decompensation has resolved, when patients are more stable. The FLU-HF randomized trial will determine whether administering the influenza vaccine to patients admitted in-hospital with an acute HF decompensation or waiting until they have stabilized as an out-patient leads to an improved anti-influenza response.

Enrollment

40 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Age > 18 years
  • Admitted in hospital with primary diagnosis of acute HF
  • Prior diagnosis of chronic HF > 3 months prior to admission
  • Not on inotropes, mechanical support, or IV diuretics for 24 hours
  • Able to follow-up within the MUHC HF clinic as per schedule
  • agree to receive influenza vaccination

Exclusion criteria

  • Any person who does not meet the above criteria and/or who refuses to participate
  • Already received this seasons influenza vaccination
  • Known allergy to influenza vaccination or components of the influenza vaccination
  • Unlikely to survive to discharge as per admitting physician
  • Prior organ transplant
  • Undergoing chemotherapy for active malignancy
  • Currently randomized in another clinical study

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

40 participants in 2 patient groups

In-patient vaccination arm
Active Comparator group
Description:
Participants in this arm will receive the influenza vaccination during their heart failure hospitalization.
Treatment:
Biological: Influenza vaccination administration
In-clinic vaccination arm
Active Comparator group
Description:
Participants in this arm will receive the influenza vaccination during their follow up visit in the heart failure clinic 30 days post-discharge.
Treatment:
Biological: Influenza vaccination administration

Trial contacts and locations

1

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Central trial contact

Dina Moawad, MSc.

Data sourced from clinicaltrials.gov

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