Responses to COVID19 Vaccination in Patients With a Treatment History of Rituximab.

NCT ID: NCT04877496

Last Updated: 2021-06-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

425 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-04-26

Study Completion Date

2021-10-31

Brief Summary

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Patients with treatment history of rituximab since 01.01.2019 and immunocompetent volunteers will be contacted to give a blood sample after their COVID19 vaccination, and in a subset also before vaccination. Immune responses of antibodies and SARS-CoV2-specific T-cells to the vaccination will be quantified and the rituximab effect on COVID19 vaccine-induced immune responses is analyzed.

Detailed Description

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Conditions

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COVID19 Vaccination Rituximab Immunosuppression

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Immunocompetent controls

Participants aged at least 18 years, no history of COVID19, no history of anti-CD20 treatment

Completion of COVID19 vaccine at least 4 weeks ago

Intervention Type BIOLOGICAL

Completion of COVID19 vaccination course at least 4 weeks ago.

Patients with a treatment history of rituximab

Participants aged at least 18 years, no history of COVID19, history of at least 1 dose of anti-CD20 treatment received since 01/01/2010

History of exposure to anti-CD20 treatment since 01/01/2010

Intervention Type DRUG

Intravenous treatment history of anti-CD20 treatment since 01/01/2010

Completion of COVID19 vaccine at least 4 weeks ago

Intervention Type BIOLOGICAL

Completion of COVID19 vaccination course at least 4 weeks ago.

Interventions

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History of exposure to anti-CD20 treatment since 01/01/2010

Intravenous treatment history of anti-CD20 treatment since 01/01/2010

Intervention Type DRUG

Completion of COVID19 vaccine at least 4 weeks ago

Completion of COVID19 vaccination course at least 4 weeks ago.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

1. Patients who were treated with anti-CD20 treatment since 01.01.2010
2. Patients who received a COVID19 vaccination (completion of all required doses) until target date (initial target: 30.05.21, but can be delayed to 30.06.21, 30.07.21 or 30.08.21 in case of insufficient enrollment)
3. Volunteers without a history of anti-CD20 treatment exposure
4. All: written informed consent.

Exclusion Criteria

1. Patients aged 18 years and younger at time of study enrollment and/or
2. Pregnant or lactating women at time of study enrollment and/or
3. Patients who do not provide written informed consent and/or
4. Patients who have previously had a COVID19 infection (self-reported COVID19 disease, positive PCR or serology)
5. Patients who are in a dependency relationship with the study personnel (hierarchical, social)


1. Volunteers aged 18 years and younger at time of study enrollment and/or
2. Pregnant or lactating women at time of study enrollment and/or
3. Volunteers who do not provide informed consent and/or
4. Volunteers who suffer from an active autoimmune disease, active cancer, immunosuppressive therapy, history of anti-CD20 treatment and/or
5. Volunteers who have previously had a COVID19 infection (self-reported COVID19 disease, positive PCR or serology)
6. Volunteers who did not complete their COVID19 vaccination
7. Volunteers who are in a dependency relationship with the study personnel (hierarchical, social)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Insel Gruppe AG, University Hospital Bern

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Daniel Sidler, MD PhD

Role: PRINCIPAL_INVESTIGATOR

University Hospital Bern, Department of Nephrology and Hypertension

Locations

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University Hospital Bern Inselspital

Bern, Canton of Bern, Switzerland

Site Status RECRUITING

Countries

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Switzerland

Central Contacts

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Daniel Sidler, MD PhD

Role: CONTACT

0041316323144

Matthias B. Moor, MD PhD

Role: CONTACT

0041316323144

Facility Contacts

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Daniel Sidler, MD PhD

Role: primary

00316323144

Matthias B. Moor, MD PhD

Role: backup

0316323144

References

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Sidler D, Born A, Schietzel S, Horn MP, Aeberli D, Amsler J, Moller B, Njue LM, Medri C, Angelillo-Scherrer A, Borradori L, Seyed Jafari SM, Radonjic-Hoesli S, Chan A, Hoepner R, Bacher U, Mani LY, Iype JM, Suter-Riniker F, Staehelin C, Nagler M, Hirzel C, Maurer B, Moor MB. Trajectories of humoral and cellular immunity and responses to a third dose of mRNA vaccines against SARS-CoV-2 in patients with a history of anti-CD20 therapy. RMD Open. 2022 Mar;8(1):e002166. doi: 10.1136/rmdopen-2021-002166.

Reference Type DERIVED
PMID: 35361691 (View on PubMed)

Moor MB, Suter-Riniker F, Horn MP, Aeberli D, Amsler J, Moller B, Njue LM, Medri C, Angelillo-Scherrer A, Borradori L, Radonjic-Hoesli S, Seyed Jafari SM, Chan A, Hoepner R, Bacher VU, Mani LY, Iype JM, Hirzel C, Maurer B, Sidler D. Humoral and cellular responses to mRNA vaccines against SARS-CoV-2 in patients with a history of CD20 B-cell-depleting therapy (RituxiVac): an investigator-initiated, single-centre, open-label study. Lancet Rheumatol. 2021 Nov;3(11):e789-e797. doi: 10.1016/S2665-9913(21)00251-4. Epub 2021 Sep 7.

Reference Type DERIVED
PMID: 34514436 (View on PubMed)

Other Identifiers

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4749

Identifier Type: -

Identifier Source: org_study_id

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