Influenza Vaccination in Immunocompromized Patients

October 31, 2008 updated by: University Hospital Inselspital, Berne

Double Blind Randomized Comparison of a Subunit- and a Virosomal Influenza Vaccine in Immunocom-Promized Patients

Evaluation of the immunogenicity and reactogenicity of two different formulations of commercially avail-able influenza vaccines in 4 different groups of immunocompromized outpatients (HIV positive patients, patients suffering from rheumatologic diseases and receiving treatment with immunosuppressive drugs and patients undergoing hemodialysis or continuous ambulatory peritoneal dialysis). The aim of the study was to investigate if the newest formulation of influenza vaccines (virosomal vaccines) offer a benefit in immunocompromized patients in comparison to an older subunit formulation.

Study Overview

Detailed Description

The infection with influenza is associated with higher morbidity and mortality in risk groups including immunocompromized patients. The virosomal influenza vaccines have been associated with improved immunogenicity in former trials. No direct comparison with older formulations has been conducted so far.

Study Type

Interventional

Enrollment (Actual)

304

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Bern, Switzerland, 3010
        • Department of Infectious Diseases, Bern University Hospital
      • Bern, Switzerland, 3010
        • Department of Nephrology/Hypertension, Bern University Hospital
      • Bern, Switzerland, 3010
        • Department of Rheumatic Diseases, Bern University Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult outpatients treated at the Inselspital Bern for:
  • HIV infection
  • rheumatologic diseases and receiving immunosuppressive drugs
  • kidney transplant recipients
  • undergoing hemodialysis or continuous ambulatory peritoneal dialysis
  • written informed consent

Exclusion Criteria:

  • Allergy to egg proteins
  • Former adverse reactions to prior vaccination
  • Febrile conditions at the time of study inclusion

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: PREVENTION
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: TRIPLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Virosomal influenza vaccine
Influvacplus 2005/2006, Solvay Pharma AG, Bern, Switzerland Assigned to all 4 groups if immunocompromized patients
ACTIVE_COMPARATOR: Subunit influenza vaccine
Influvac 2005/2006, Solvay Pharma AG, Bern, Switzerland Assigned to all 4 groups if immunocompromized patients

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Immunogenicity defined as seroconversion (1:>=4) and seroprotection rates (1:>=40)
Time Frame: >60 Wochen
>60 Wochen

Secondary Outcome Measures

Outcome Measure
Time Frame
Reactogenicity in rheumatologic patients by disease specific scores
Time Frame: Six weeks after vaccination
Six weeks after vaccination
Immediate side effects at time of application of vaccination
Time Frame: Minutes after vaccination
Minutes after vaccination
Side effects after vaccination
Time Frame: First week after vaccination
First week after vaccination

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: John M Evison, MD, Department of Infectious Diseases, University Hospital Bern, 3010-Bern, Switzerland

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2005

Primary Completion (ACTUAL)

July 1, 2006

Study Completion (ACTUAL)

March 1, 2008

Study Registration Dates

First Submitted

October 30, 2008

First Submitted That Met QC Criteria

October 30, 2008

First Posted (ESTIMATE)

October 31, 2008

Study Record Updates

Last Update Posted (ESTIMATE)

November 2, 2008

Last Update Submitted That Met QC Criteria

October 31, 2008

Last Verified

October 1, 2008

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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