Response of Haemodialysis Patients to BNT162b2 mRNA Cov-19 Vaccine (ROMANOV)

May 4, 2022 updated by: Hospices Civils de Lyon

Vaccination against SARS-Cov2 is a necessity for haemodialysis patients because difficulties to maintain a self-isolation (leading to a higher contamination than general population) and an increase of mortality in case of contamination (more than 20% of mortality in this population). However, vaccine efficiency is known to be decreased in haemodialysis patients. This lead critical the rapid description of immunogenicity of anti SARS-Cov2 vaccine in haemodialysis patients.

The aim of this study is to describe the immunogenicity of the BTN162b2 SARS-Cov2 vaccine in haemodialysis patients.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

99

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

  • France
      • Lyon, France, 69003
        • Department of Nephrology, Hopital Edouard Herriot
      • Pierre Bénite, France, 69495
        • Department of Nephrology, Centre Hospitalier Lyon Sud

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 to 130 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients treated by chronic haemodialysis, with initiation of a vaccination by BTN162b2 mRNA Cov-19 with classical scheme

Description

Inclusion Criteria:

  • Medical prescription of BTN162b2 mRNA Cov-19 vaccine
  • Treatment by chronic (>1 month) haemodialysis

Exclusion Criteria:

  • Non-recommended vaccination scheme
  • Refusal to consent

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
All haemodialysed patients with a medical prescription of BTN162b2 mRNA Cov-19 vaccine
Serological response is defined by a 4 fold increase of IgG anti-spike protein of SARS-Cov2 between Day 0 (before vaccination) and after complete vaccination (evaluated at Day 7 - 14 post-boost).
Biological: Evaluation of the immunogenicity of the vaccine in haemodialysis patients
The immunogenicity of the vaccine will be evaluated at the peak of vaccine response (Day 7 - Day 14 after the second dose) and 6 and 12 months post vaccination, by the evaluation of humoral IgG anti-spike protein response (seroconversion rate, absolute antibody titers, affinity of antibody) and cellular anti SARS-Cov2 response (number, activation capacity, production of interferon gamma of CD4 and CD8 anti sars cov2 specific T cells)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Seroconversion rate after vaccination with BTN162b2 mRNA cov-19 vaccine
Time Frame: The seroconversion rate is evaluated at Day 7-Day 14 after the second dose.

IgG anti SARS-Cov2 spike protein will be evaluated by ELISA at Day 0 (at the initiation of vaccination) anti Day 7 - Day 14 after the second dose (peak of response).

The seroconversion is defined by an 4 fold increase of IgG anti SARS-Cov2 spike protein titer between Day 0 and Day 7 - Day 14 after second dose.
The seroconversion rate is evaluated at Day 7-Day 14 after the second dose.

Collaborators and Investigators

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

Sponsor

Hospices Civils de Lyon

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 (Actual)

May 10, 2021

Primary Completion (Actual)

February 15, 2022

Study Completion (Actual)

February 15, 2022

Study Registration Dates

First Submitted

May 4, 2021

First Submitted That Met QC Criteria

May 10, 2021

First Posted (Actual)

May 11, 2021

Study Record Updates

Last Update Posted (Actual)

May 10, 2022

Last Update Submitted That Met QC Criteria

May 4, 2022

Last Verified

May 1, 2022

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • 69HCL21_0125
  • 2021-A00325-36 (Other Identifier: ID-RCB)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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