MedPath

Covid-19 Vaccine Cohort in Specific Populations

Conditions
Immune Deficiency
Interventions
Biological: COVID-19 vaccine
Registration Number
NCT04824651
Lead Sponsor
ANRS, Emerging Infectious Diseases
Brief Summary

Multicentre national cohort study with prospective data collection and biological specimen collection.

Ancillary study in this cohort : pediatric cohort with participants from 5 to 17 years old.

Enrollment complete for adult cohort. Active recruting for ancillary pediatric cohort.

Detailed Description

Primary Objective

1.Evaluate in a standardized manner in each subpopulation the humoral immune response to Covid-19 vaccination at 1, 6, 12, 24 months (M) after the last dose of vaccine (1 or 2 dose schedule depending on the vaccines) and standardized assessment of the humoral response 1 month after receipt of the third injection in participants receiving a third injection as recommended

Secondary objectives

1. Evaluate the cellular immune response to Covid-19 vaccination at Inclusion, 6 and 24 months after the first injection (single-injection scheme) or after the second injection of the vaccine (two or three-injections regimens) in each subpopulation

2. Compare the humoral immune response at 1, 6, 12, 24 months after the first injection (one-injection scheme) or after the second injection of vaccine (two- or three-injections regimens) of each subpopulation with a control group of subjects without the chronic diseases of interest and from any other diseases or treatment taht may have an influence on the immune response.

3. Compare the humoral immune response after 3 injections (1 month after the third dose) to that after 2 injections (1 month after the second dose) in participants with received a third injection as current recommendations

4. In each subpopulation, study the factors associated with the humoral immune response at 1 month and the persistence of the humoral immune response at 6, 12, 24 months as a function of age, stage of disease, treatments, type of vaccine (as well as characteristics specific to the subpopulations studied)

5. Evaluate and characterize the humoral immune response for participants who received a booster dose with mRNA vaccine acording to recommendations in force

6. Compare the humoral immune response between different specific subpopulations

7. Describe the seroconversion for anti-nucleoprotein antibodies

8. Immuno-virologically characterize vaccine failures (SARS-CoV2 infection) during follow-up

9. Identify genetic determinants of the immune response based on the underlying pathology and ongoing treatments if applicable (response and resistance to vaccination)

Specifics secondary objectives for participants with the first dose of Astra-Zeneca vaccine and the second dose of Pfizer vaccine

1. Evaluate the humoral and the cellular immune response to Covid-19 vaccination with this vaccination schedule

2. Evaluate the clinical reaction (local and generale) after this vaccination schedule

Recruitment & Eligibility

Status
UNKNOWN
Sex
All
Target Recruitment
6920
Inclusion Criteria

Not provided

Read More
Exclusion Criteria

Not provided

Read More

Study & Design

Study Type
OBSERVATIONAL
Study Design
Not specified
Arm && Interventions
GroupInterventionDescription
Diabetic (type I and II) obese or notCOVID-19 vaccineobjective : 1400 participants for adult cohort, 100 for pediatric cohort
Solid cancerCOVID-19 vaccineobjective : 800 participants for adult cohort, 100 for pediatric cohort (solid cancer and malignant hemopathy)
Solid organ transplantationCOVID-19 vaccineobjective : 700 participants for adult cohort, 50 for pediatric cohort
Allogeneic hematopoietic stem cell transplantationCOVID-19 vaccineobjective : 350 participants for adult cohort, 50 for pediatric cohort
Chronic renal failureCOVID-19 vaccinePatients with chronic renal failure stage 4, 5 who receive dialysis or not. objective : 350 participants for adult cohort, 30 for pediatric cohort
Autoimmune and autoinflammatory systemic diseasesCOVID-19 vaccineSystemic lupus erythematosus ,Systemic Vasculitides,... objective : 750 participants for adult cohort, 130 for pediatric cohort
Chronic inflammatory rheumatismCOVID-19 vaccineAnkylosing spondylitis and rheumatoid polyarthritis objective : 600 participants for adult cohort
HypogammaglobulinemiaCOVID-19 vaccineobjective : 300 participants for adult cohort
Obese non diabeticCOVID-19 vaccineBMI ≥ 30 objective : 1400 participants for adult cohort, 100 for pediatric cohort
People living with HIV-1COVID-19 vaccineobjective : 1400 participants for adult cohort
Control AZ-PF group (free from chronic conditions of interest listed above)COVID-19 vaccineParticipants with first dose of Astra-Zeneca vaccine AZD1222 and second dose of Pfizer ARNm vaccine BNT162b2 objective : 200 participants for adult cohort
Multiple sclerosis/ Neuromyelitis optica diseasesCOVID-19 vaccineMS defined by Mac Donald et al. 2017 and Neuromyelitis optica defined by Wingerchuk et al. 2015 ; objective : 600 participants for adult cohort
Senior group (free from chronic conditions of interest listed above)COVID-19 vaccine≥75 years objective : 450 participants for adult cohort
Control group (free from chronic conditions of interest listed above)COVID-19 vaccine18 to 74 years objective : 1400 participants for adult cohort, 100 for pediatric cohort (from 5 to 17 years old)
Major sickle cell syndromeCOVID-19 vaccine100 for pediatric cohort (from 5 to 17 years old)
Primary Outcome Measures
NameTimeMethod
These primary outcome only concern the adult cohort. Humoral immunity to Covid-19 vaccination using 2 serological criteria:before the second injection (if applicable)

* Anti-Spike (test 1) and anti RBD (test 2) antibodies (quantitative Elisa)

* Seroneutralization, by conventional in vitro seroneutralization test, for participants having test 1 and / or test 2 positive: percentage of patients with a neutralizing antibody titre specific to SARS-CoV-2 ≥20.

Seroneutralization, by neutralization test on SARS-CoV-2 variants, in the first 50 participants included by subpopulation and with test 1 and / or test 2 positive: SARS-CoV-2 specific neutralizing antibodies titre

Humoral immunity to Covid-19 vaccination using 2 serological criteria:Month 24

* Anti-Spike (test 1) and anti RBD (test 2) antibodies (quantitative Elisa)

* Seroneutralization, by conventional in vitro seroneutralization test, for participants having test 1 and / or test 2 positive: percentage of patients with a neutralizing antibody titre specific to SARS-CoV-2 ≥20.

Seroneutralization, by neutralization test on SARS-CoV-2 variants, in the first 50 participants included by subpopulation and with test 1 and / or test 2 positive: SARS-CoV-2 specific neutralizing antibodies titre

Percentage of participants seroconverting for Anti Nucleoprotein antibodiesMonth 24

(qualitative Elisa)

Seroconversion or increase of factor 2 titer of antibodies anti-Spike/anti-RBD between the second and the third dose for the participants with 3 injectionsMonth 1 after the third dose

(qualitative Elisa)

Seroconversion or increased levels of anti-Spike/anti-RBD antibodies between the last injection of the initial vaccine regimen and the booster doseMonth 1 after the booster dose

(qualitative Elisa)

Secondary Outcome Measures
NameTimeMethod
For participants with first injection with Astra-Zeneca vaccine AZD1222 and second injection with Pfizer ARNm vaccine BNT161b2 : humoral and cellular immunity to Covid-19 vaccinationMonth 1

qualitative Elisa and ELISpot Test

These secondary outcome only concern the adult cohort. Cellular immunity to Covid-19 vaccinationInclusion

ELISpot Test

Cellular immunity to Covid-19 vaccinationMonth 24

ELISpot Test

For participants with first injection with Astra-Zeneca vaccine AZD1222 and second injection with Pfizer ARNm vaccine BNT161b2 : collection of immediate adverse effectswithin 15 minutes after injection of Pfizer ARNm vaccine

collection by a self-monitoring log

For participants with first injection with Astra-Zeneca vaccine AZD1222 and second injection with Pfizer ARNm vaccine BNT161b2 : collection of adverse effects expected from the databasewithin 7 days after injection of Pfizer ARNm vaccine

collection by a self-monitoring log

For participants with first injection with Astra-Zeneca vaccine AZD1222 and second injection with Pfizer ARNm vaccine BNT161b2 : collection of adverse effectswithin 28 days after injection of Pfizer ARNm vaccine

collection by a self-monitoring log

Trial Locations

Locations (3)

Cmg-Ec U1219

🇫🇷

Bordeaux, France

Paris Cochin APHP

🇫🇷

Paris, France

Nîmes CHU

🇫🇷

Nîmes, France

© Copyright 2025. All Rights Reserved by MedPath