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Covid19LESS CoV-2NCT04841785

RECOVAC - Long Term Efficacy and Safety of COVID-19 (SARS-CoV-2) Vaccination in Kidney Disease Patients

An observational study of Covid19 and SARS-CoV Infection, run by University Medical Center Groningen at 1 site in Netherlands.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Rationale: COVID-19 is associated with severely increased morbidity and mortality in patients with chronic kidney disease stage G4-G5 and patients on dialysis or after kidney transplantation. Therefore, effective SARS-CoV-2 vaccination would be of great clinical importance in these patients. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
mailer-based finger-prick
How many people
4,868 participants
Where
1 siteNetherlands
Study dates
22 Apr 2021to 18 Dec 2023
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: * Patients with chronic kidney disease stage G4-G5 from the Santeon registry * Patients on hemodialysis and peritoneal dialysis who gave informed consent for participating in the national registry RENINEKidney transplant recipients who gave informed consent for participating in the national registry NOTR

Who may be able to join

  • Eligible for COVID-19 vaccination as described by the instructions of the manufacturer.
  • Age of 18 years or older
  • Capable of understanding the purpose and risks of the study, fully informed and given written informed consent (signed informed consent form has been obtained)
  • Either
  • eGFR < 30 ml/min/1.73m2 but not on dialysis or with a kidney transplant
  • Hemodialysis, or peritoneal dialysis
  • Kidney Transplant recipient at least 6 weeks after transplantation

Who cannot join

  • History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (e.g. anaphylaxis) to any component of the study intervention(s).
  • Patients who opted out for research in the Santeon, RENINE and NOTR registries.
  • Patients who participate in the RECOVAC-IR study.
  • Of note, patients will be eligible whether or not they have a history of COVID-19. Analyses will be performed in the overall population, but also shown separately for those without and with a history of COVID-19.

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • University Medical Center Groningen

    Groningen, 9713 GZ

Other trials in Netherlands

About this study

Official title: The RECOVAC LESS CoV-2 Study - Long Term Efficacy and Safety of SARS-CoV-2 Vaccination in Patients in Patients With Chronic Kidney Disease Stage G4-G5, on Dialysis or After Kidney Transplantation

Rationale: COVID-19 is associated with severely increased morbidity and mortality in patients with chronic kidney disease stage G4-G5 and patients on dialysis or after kidney transplantation. Therefore, effective SARS-CoV-2 vaccination would be of great clinical importance in these patients. However, SARS-CoV-2 vaccination studies have excluded these patients so-far. Literature data indicate that vaccination may be less effective in these patient groups.

Objective: To assess the efficacy and safety of SARS-CoV-2 vaccination in patients with chronic kidney disease stage G4-G5, patients on dialysis or after kidney transplantation during two years follow-up after vaccination.

Read more

Study design: prospective single center observational cohort study.

Study population:

  • all Dutch patients on dialysis with data registered in the Dutch Dialysis registry (RENINE)
  • all Dutch patients after kidney transplantation with data registered in the Dutch national kidney transplant registry (NOTR).
  • All Dutch patients with chronic kidney disease stage G4-G5 registered in the Santeon hospitals.

Intervention: After SARS-CoV-2 vaccination according to standard of care, blood will be drawn for antibody response measurements at day 28 and month 6 after 2nd vaccination at by mailer-based finger-prick in 3400 hemodialysis patients, 600 peritoneal dialysis patients, 4000 patients after kidney transplantation and 4000 patients with chronic kidney disease stage G4-G5. Patients who will undergo a 3rd SARS-CoV-2 vaccination via the national vaccination program for immunocompromised patients will be asked to carry out the mailer-based finger-prick 28 days after the 3rd SARS-CoV-2 vaccination, instead of the antibody measurement 6 months after the 2nd SARS-CoV-2 vaccination.

Main study parameters/endpoints:

The primary endpoint is efficacy of SARS-CoV-2 vaccination determined as:

  • the incidence of COVID-19 after vaccination.

Secondary endpoints are

  • mortality
  • adverse events of specific interest according to (inter)national authorities in collaboration with LAREB
  • presence of HLA-antibodies in dialysis patients on the waiting list for a first kidney transplantation
  • acute rejection and graft failure in patients after kidney transplantation In a subset of patients additional secondary endpoints will be assessed
  • the antibody based immune response at 28 days after completion of SARS-CoV-2 vaccination.
  • the durability of antibody based immune response at 6 months compared to at 28 days after having received two subsequent SARS-CoV-2 vaccinations, in patients that have not received a 3rd SARS-CoV-2 vaccine.
  • the antibody based immune response at 28 days after having received the 3rd SARS-CoV-2 vaccination.

The incidence of these endpoints will be compared, if applicable, to those:

  • in the general population who are vaccinated
  • in patients on dialysis or after kidney transplant who are not vaccinated Within these patient groups endpoints will be compared between recipients of different vaccines.
Read the detailed description
  1. OBJECTIVES Primary objective: To assess the efficacy of SARS-CoV-2 vaccination by the incidence of COVID-19 in patients with chronic kidney disease stage G4-G5, on dialysis and patients after kidney transplantation who received SARS-CoV-2 vaccination Secondary Objectives:
  • To assess the safety of vaccination In a subgroup of participants:
  • To assess the level of antibody response at 28 days and 6 months after SARS-CoV-2 vaccination
  • To assess durability of the antibody response at 6 months after having received two subsequent SARS-CoV-2 vaccinations, in a subset of patients that have not received a 3rd SARS-CoV-2 vaccine
  • the antibody based immune response at 28 days after having received the 3rd SARS-CoV-2 vaccination. Exploratory Objectives:
  • The vaccination coverage rate
  • The severity of COVID-19 in case of infection
  • The influence of vaccination on health-related quality of life by patient reported outcome measures (PROMs) in patients on dialysis.
  • The SARS-CoV-2 genotype in patients with COVID-19 In a subgroup of participants:
  • To assess the level of antibody response after vaccination between patients with COVID-19 and without COVID-19 at:
  • 28 days after the 2nd SARS-CoV-2 vaccination
  • 28 days after the 3rd SARS-CoV-2 vaccination
  • 6 months after the 2nd SARS-CoV-2 vaccination in patients who have not received a 3rd vaccine.
  • To assess change in behaviour towards measures against COVID-19 before and after vaccination If data are available and applicable, outcomes in vaccinated patients on dialysis or after kidney transplantation will be compared:
  • with outcomes in the general population
  • with outcomes in patients with severely impaired kidney function (CKD stages G4/5), on dialysis or with a kidney transplant who are not vaccinated.
  • according to the type of vaccination they received
  1. STUDY DESIGN This is a prospective observational registry-based cohort study to evaluate the long-term efficacy and safety after SARS-CoV-2 vaccination on clinically important outcomes in patients with chronic kidney disease stage G4-G5, on dialysis or after kidney transplantation. All participants will receive vaccination against COVID-19 via the national vaccination program and according to the manufacturer's instructions. To assess the immune response after vaccination, blood samples will be collected at 28 days after the 2nd SARS-CoV-2 vaccination, 28 days after the 3rd SARS-CoV-2 vaccination, and 6 months after the 2nd SARS-CoV-2 vaccination in patients who have not received a 3rd vaccination. In total a maximum of 1 ml blood will be drawn. Data of the following cohorts will be analyzed in this study.
  • Patiens with chronic kidney disease stage G4-G5, data to be derived from the Santeon hospitals.
  • Patients on hemodialysis and peritoneal dialysis, data to be derived from the existing national registry RENINE
  • Kidney transplant recipients, data to be derived from the existing national registry NOTR
  • Patients on dialysis or after kidney transplantation with COVID-19 disease, data to be derived from the ERACODA database.
  1. METHODS

Main study parameter/endpoint:

The primary endpoints is the incidence of COVID-19 in a two years period after SARS-CoV-2 vaccination in patients with chronic kidney disease stage G4-G5, on dialysis or after kidney transplantation.

Secondary study parameters/endpoints:

Safety in all patients:

  • Incidence of mortality
  • Incidence of adverse events of specific interest as defined by (inter)national authorities in collaboration with LAREB
  • Incidence of a combined endpoint of acute rejection or graft failure in patients after kidney transplantation
  • Incidence of HLA antibodies defined as calculated Panel Reactivity Antibodies (cPRA) > 5% in patients on the waiting list for their first kidney transplantation

Efficacy in a subgroup of patients:

  • The antibody response against the SARS-CoV-2 Receptor Binding Domain at 28 days after the final SARS-CoV-2 vaccination.
  • The antibody response against the SARS-CoV-2 Receptor Binding Domain at 28 days after the 3rd SARS-CoV-2 vaccination.
  • The durability of antibody based immune response against SARS-CoV-2 Receptor Binding Domain at 6 months compared to 28 days after completion of SARS-CoV-2 vaccination in patients who did not receive a 3rd SARS-CoV-2 vaccination.

Exploratory study parameters:

  • Vaccination coverage rates
  • Disease severity in patients who develop COVID-19, assessed as
  • Hospitalization
  • ICU admission
  • Mechanical ventilation
  • Mortality
  • The influence of vaccination on health-related quality of life by patient reported outcome measures (PROMs) in dialysis patients
  • SARS-CoV-2 genotype in patients with COVID-19

In a subgroup of participants:

  • To assess the level of SARS-CoV-2 Receptor Binding Domain antibody response after vaccination between patients with COVID-19 and without COVID-19 at:
  • 28 days after the 2nd SARS-CoV-2 vaccination
  • 28 days after the 3rd SARS-CoV-2 vaccination
  • 6 months after the 2nd SARS-CoV-2 vaccination in patients who have not received a 3rd vaccine.
  • To assess change in behaviour towards measures against COVID-19 before and after vaccination

These data collected after SARS-CoV-2 vaccination in patients with chronic kidney disease stage G4-G5, on dialysis and after a kidney transplantation will (if applicable data are available) be compared:

  • to those obtained in the general population
  • to those obtained in patients with chronic kidney disease stage G4-G5, on dialysis or with a kidney transplant who are not vaccinated
  • according to the type of vaccination received These comparisons will allow us to analyze whether SARS-CoV-2 vaccination offers efficacy to prevent COVID-19 and sufficient safety in patients with chronic kidney disease stage G4-G5, dialysis and kidney transplant patients when compared to non-vaccinated patients with chronic kidney disease stage G4-G5, dialysis and kidney transplant patients, whether the efficacy is similar as in the general population, and whether there are differences in the risk-benefit ratio between the various vaccines.
Being tested
mailer-based finger-prick
Keywords
Kidney transplant recipients, Dialysis, Chronic kidney disease stage 4-5, SARS-CoV-2 vaccination, COVID-19 vaccination, Antibody based immune response
Medical subject headings
COVID-19, Severe Acute Respiratory Syndrome, Renal Insufficiency, Chronic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • mailer-based finger-prickDiagnostic test

    Also called blood withdrawel

    All participants in the antibody measurement study will be sent a mailer-based finger-prick set. The sets will be sent to the home address of the patient, including a return envelope. After collecting and returning the samples SARS-CoV-2 antibodies will be analysed quantitatively at the laboratory.

Study groups in NCT04841785
Study groupRoleWhat they receive
CKD4/5Patients with chronic kidney disease stage G4-G5 without dialysis or with a kidney transplant
Receives: Diagnostic Test: mailer-based finger-prick
DialysisPatients on hemodialysis and peritoneal dialysis
Receives: Diagnostic Test: mailer-based finger-prick
Kidney transplantPatients with a kidney transplant at least 6 weeks after transplantation
Receives: Diagnostic Test: mailer-based finger-prick

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The incidence of COVID-19

    After SARS-CoV-2 vaccination in patients with chronic kidney disease stage G4-G5, on dialysis or after kidney transplantation.

    Measured: two years after SARS-CoV-2 vaccination

Secondary outcomes (7)
  1. Incidence of mortality

    Incidence of mortality in patients with chronic kidney disease stage G4-G5, on dialysis or after kidney transplantation.

    Measured: two years after SARS-CoV-2 vaccination

  2. Incidence of adverse events

    Incidence of adverse events of specific interest as defined by (inter)national authorities in collaboration with LAREB

    Measured: two years after SARS-CoV-2 vaccination

  3. Incidence of acute rejection or graft failure in kidney transplant recipients

    Incidence of a combined endpoint of acute rejection or graft failure in patients after kidney transplantation

    Measured: two years after SARS-CoV-2 vaccination

  4. Incidence of HLA antibodies measured in blood

    Incidence of HLA antibodies defined as calculated Panel Reactivity Antibodies (cPRA) > 5% in patients on the waiting list for their first kidney transplantation

    Measured: two years after SARS-CoV-2 vaccination

  5. The antibody level against the SARS-CoV-2 Receptor Binding Domain measured in blood

    The antibody response against the SARS-CoV-2 Receptor Binding Domain

    Measured: 28 days after second SARS-CoV-2 vaccination.

  6. The antibody level against SARS-CoV-2 Receptor Binding Domain measured in blood

    The antibody based immune response against SARS-CoV-2 Receptor Binding Domain at 6 months compared to 28 days after completion of SARS-CoV-2 vaccination in patients without a third vaccination.

    Measured: 6 months after second SARS-CoV-2 vaccination

  7. The antibody level against SARS-CoV-2 Receptor Binding Domain measured in blood

    The antibody based immune response against SARS-CoV-2 Receptor Binding Domain at 28 days after a third vaccination

    Measured: 28 days after third SARS-CoV-2 vaccination

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Apr 2021
  2. Study start22 Apr 2021
  3. Primary completion30 Nov 2021
  4. Study completion18 Dec 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
4,868 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04841785
Sponsor's protocol ID
NL76839.042.21
Acronym
LESS CoV-2
Status last verified
Mar 2024
First submitted
22 Mar 2021
Last updated
18 Mar 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Ahn C, Amer H, Anglicheau D, Ascher NL, Baan CC, Battsetset G, Bat-Ireedui B, Berney T, Betjes MGH, Bichu S, Birn H, Brennan D, Bromberg J, Caillard S, Cannon RM, Cantarovich M, Chan A, Chen ZS, Chapman JR, Cole EH, Cross N, Durand F, Egawa H, Emond JC, Farrero M, Friend PJ, Geissler EK, Ha J, Haberal MA, Henderson ML, Hesselink DA, Humar A, Jassem W, Jeong JC, Kaplan B, Kee T, Kim SJ, Kumar D, Legendre CM, Man K, Moulin B, Muller E, Munkhbat R, Od-Erdene L, Perrin P, Rela M, Tanabe K, Tedesco Silva H, Tinckam KT, Tullius SG, Wong G. Global Transplantation COVID Report March 2020. Transplantation. 2020 Oct;104(10):1974-1983. doi: 10.1097/TP.0000000000003258. No abstract available.

    PubMed 32243281
  • Baric RS. Emergence of a Highly Fit SARS-CoV-2 Variant. N Engl J Med. 2020 Dec 31;383(27):2684-2686. doi: 10.1056/NEJMcibr2032888. Epub 2020 Dec 16. No abstract available.

    PubMed 33326716
  • Robison SF, Mayhew RB, Cowan RD, Hawley RJ. Comparative study of deflection characteristics and fragility of 25-, 27-, and 30-gauge short dental needles. J Am Dent Assoc. 1984 Dec;109(6):920-4. doi: 10.14219/jada.archive.1984.0246. No abstract available.

    PubMed 6595298
  • Berends SE, Bloem K, de Vries A, Schaap T, Rispens T, Strik AS, Talwar R, Lowenberg M, D'Haens GR, Mathot RA. Monitoring of Adalimumab Concentrations at Home in Patients with Inflammatory Bowel Disease Using Dried Blood Samples. Ther Drug Monit. 2020 Apr;42(2):289-294. doi: 10.1097/FTD.0000000000000686.

    PubMed 31464823
  • Dearlove B, Lewitus E, Bai H, Li Y, Reeves DB, Joyce MG, Scott PT, Amare MF, Vasan S, Michael NL, Modjarrad K, Rolland M. A SARS-CoV-2 vaccine candidate would likely match all currently circulating variants. Proc Natl Acad Sci U S A. 2020 Sep 22;117(38):23652-23662. doi: 10.1073/pnas.2008281117. Epub 2020 Aug 31.

    PubMed 32868447
  • ERA-EDTA Council; ERACODA Working Group. Chronic kidney disease is a key risk factor for severe COVID-19: a call to action by the ERA-EDTA. Nephrol Dial Transplant. 2021 Jan 1;36(1):87-94. doi: 10.1093/ndt/gfaa314.

    PubMed 33340043
  • Gansevoort RT, Hilbrands LB. CKD is a key risk factor for COVID-19 mortality. Nat Rev Nephrol. 2020 Dec;16(12):705-706. doi: 10.1038/s41581-020-00349-4.

    PubMed 32848205
  • Gezondheidsraad. Strategieën voor COVID-19-vaccinatie. Den Haag: Gezondheidsraad, 2020; publicatienr. 2020/23

  • Hilbrands LB, Duivenvoorden R, Vart P, Franssen CFM, Hemmelder MH, Jager KJ, Kieneker LM, Noordzij M, Pena MJ, Vries H, Arroyo D, Covic A, Crespo M, Goffin E, Islam M, Massy ZA, Montero N, Oliveira JP, Roca Munoz A, Sanchez JE, Sridharan S, Winzeler R, Gansevoort RT; ERACODA Collaborators. COVID-19-related mortality in kidney transplant and dialysis patients: results of the ERACODA collaboration. Nephrol Dial Transplant. 2020 Nov 1;35(11):1973-1983. doi: 10.1093/ndt/gfaa261.

    PubMed 33151337
  • Hodgson SH, Mansatta K, Mallett G, Harris V, Emary KRW, Pollard AJ. What defines an efficacious COVID-19 vaccine? A review of the challenges assessing the clinical efficacy of vaccines against SARS-CoV-2. Lancet Infect Dis. 2021 Feb;21(2):e26-e35. doi: 10.1016/S1473-3099(20)30773-8. Epub 2020 Oct 27.

    PubMed 33125914
  • Katerinis I, Hadaya K, Duquesnoy R, Ferrari-Lacraz S, Meier S, van Delden C, Martin PY, Siegrist CA, Villard J. De novo anti-HLA antibody after pandemic H1N1 and seasonal influenza immunization in kidney transplant recipients. Am J Transplant. 2011 Aug;11(8):1727-33. doi: 10.1111/j.1600-6143.2011.03604.x. Epub 2011 Jun 14.

    PubMed 21672157
  • Kotton CN. Immunization after kidney transplantation-what is necessary and what is safe? Nat Rev Nephrol. 2014 Oct;10(10):555-62. doi: 10.1038/nrneph.2014.122. Epub 2014 Jul 29.

    PubMed 25072119
  • Mahase E. Covid-19: Vaccine candidate may be more than 90% effective, interim results indicate. BMJ. 2020 Nov 9;371:m4347. doi: 10.1136/bmj.m4347. No abstract available.

    PubMed 33168562
  • Noordzij M, Duivenvoorden R, Pena MJ, de Vries H, Kieneker LM; collaborative ERACODA authors. ERACODA: the European database collecting clinical information of patients on kidney replacement therapy with COVID-19. Nephrol Dial Transplant. 2020 Dec 4;35(12):2023-2025. doi: 10.1093/ndt/gfaa179. No abstract available.

    PubMed 32785669
  • Polack FP, Thomas SJ, Kitchin N, Absalon J, Gurtman A, Lockhart S, Perez JL, Perez Marc G, Moreira ED, Zerbini C, Bailey R, Swanson KA, Roychoudhury S, Koury K, Li P, Kalina WV, Cooper D, Frenck RW Jr, Hammitt LL, Tureci O, Nell H, Schaefer A, Unal S, Tresnan DB, Mather S, Dormitzer PR, Sahin U, Jansen KU, Gruber WC; C4591001 Clinical Trial Group. Safety and Efficacy of the BNT162b2 mRNA Covid-19 Vaccine. N Engl J Med. 2020 Dec 31;383(27):2603-2615. doi: 10.1056/NEJMoa2034577. Epub 2020 Dec 10.

    PubMed 33301246

Questions about this trial

What is this clinical trial studying?

An observational study of Covid19 and SARS-CoV Infection, run by University Medical Center Groningen at 1 site in Netherlands.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The incidence of COVID-19 (time frame: two years after SARS-CoV-2 vaccination). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04841785, which also lists 22 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Mar 2024.

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