Morning or evening? study tests best time for flu shot in kidney patients
NCT ID NCT06907667
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether getting a flu shot in the morning or evening makes a difference for people with chronic kidney disease. Researchers will measure antibody levels four weeks after vaccination to see which time works better. The study involves 735 adults with advanced kidney disease, including those on dialysis or with a kidney transplant.
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.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 735 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Sep 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 100 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Chronic renal failure patient at stage 4 or 5 (i.e. estimated GFR \< 30mL/min/1.73m2); or Dialysis patient; or renal transplant patient regardless of GFR; * Age ≥ 18 years; * Indication for influenza vaccination; * Express free and informed consent. Exclusion Criteria: * Known hypersensitivity to influenza vaccine or egg proteins; * Previous influenza vaccination for the current season; * Current infection; * Current acute illness; * Treatments with a major impact on vaccine response: * Treatment of rejection within the previous 3 months; * Renal transplantation with induction performed within the previous 6 months; * Immunosuppressive treatment including CTLA4 agonist, complement inhibitor, anti-CD20; * Treatments that may distort the serological response: Polyvalent immunoglobulin infusion within the preceding 3 months; * Vulnerable persons (minors, adults under guardianship or trusteeship, persons deprived of their liberty, persons unable to speak French); * Subjects not affiliated to Social Security.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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CHU Nice - Hôpital Pasteur 2
RECRUITINGNice, Alpes-Maritimes, 06000, France
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