Study of the Impact of Time of Vaccination on Response to Influenza Vaccine in Patients With Chronic Renal Failure
CHRONOVAX2
1 other identifier
interventional
735
1 country
1
Brief Summary
Immune response to influenza vaccine in patients with chronic renal insufficiency.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Sep 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 26, 2025
CompletedFirst Posted
Study publicly available on registry
April 2, 2025
CompletedStudy Start
First participant enrolled
September 3, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2026
ExpectedSeptember 11, 2025
September 1, 2025
6 months
March 26, 2025
September 5, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Antibody titers (seroconversion) at 4 weeks after injection of inactivated influenza vaccine in each arm.
Seroconversion will be defined as an increase in antibody titer of at least 4-fold (≥4) over pre-vaccination titer AND an antibody titer ≥ 1:40 (seroprotection) four weeks post-vaccination, for at least one of the three vaccine antigens.
7 months
Secondary Outcomes (5)
Number of seasonal influenza virus infections in each arm at 4 weeks
7 months
Number of seasonal influenza virus infections in patients with chronic renal insufficiency at 6 months
12 months
Antibody titers reacting in each arm
7 months
Number of anti-vaccine antibodies inhibiting hemmagglutination
7 months
Number of neutralizing anti-vaccine antibodies
7 months
Study Arms (2)
Morning injection
ACTIVE COMPARATORVAXIGRIPTETRA influenza vaccine injection between 07:00 am and 11:00 am.
Evening injection
ACTIVE COMPARATORVAXIGRIPTETRA influenza vaccine injection between 05:00 pm and 09:00 pm.
Interventions
Injection of the vaccine in chronic renal insufficiency patients.
Eligibility Criteria
You may qualify if:
- 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.
You may not qualify if:
- 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.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
CHU Nice - Hôpital Pasteur 2
Nice, Alpes-Maritimes, 06000, France
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
GOSSET Clément, MD
CHU NICE
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 26, 2025
First Posted
April 2, 2025
Study Start
September 3, 2025
Primary Completion
March 1, 2026
Study Completion (Estimated)
September 1, 2026
Last Updated
September 11, 2025
Record last verified: 2025-09