Pilot Trial on Immunosuppression Modulation to Increase SARS-CoV-2 Vaccine Response in Kidney Transplant Recipients

NCT ID: NCT05338177

Last Updated: 2022-04-21

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

Clinical Phase

PHASE1

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-11-15

Study Completion Date

2022-11-14

Brief Summary

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Mycophenolate has been identified as risk factor for non-response to SARS-CoV-2 vaccination in kidney transplant recipients. Safety and efficacy of temporarily stopping of mycophenolate (or azathioprine) to increase vaccine response has not been established.

This is a non-randomized, controlled pilot study including up to 40 kidney transplant recipients not responding to at least three previous SARS-CoV-2 vaccine doses. Mycophenolate or azathioprine will be stopped for two weeks peri-vaccination starting one week before vaccination until one week after vaccination. Allocation to mycophenoalte or azathioprine discontinuation arm will be based on an overall risk assessment by the transplant physician and patient preference. Patients not stopping mycophenolate or azathioprine will serve as control group.

Detailed Description

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Conditions

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COVID-19

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Immunosuppression reduction

Participants stop mycophenolate or azathioprine for two weeks peri-vaccination. Treatment is stopped on week before vaccination and only restarted one week after vaccination

Group Type EXPERIMENTAL

Immunosuppression reduction

Intervention Type OTHER

participants stop mycophenolate or azathioprine one week before additional vaccine dose. Overall medication is stopped for two weeks.

No immunosuppression reduction

no alterations to immunosuppression

Group Type ACTIVE_COMPARATOR

No immunosuppression reduction

Intervention Type OTHER

participants do not alter immunosuppresion

Interventions

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Immunosuppression reduction

participants stop mycophenolate or azathioprine one week before additional vaccine dose. Overall medication is stopped for two weeks.

Intervention Type OTHER

No immunosuppression reduction

participants do not alter immunosuppresion

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patient has received a kidney transplantation
* \> 18 years of age
* No SARS-CoV-2 spike protein antibodies four weeks after at least three previous vaccine doses
* Maintenance immunosuppression with mycophenolate or azathioprine

Exclusion Criteria

* acute illness with fever
* Prior documented infection with SARS-CoV-2
* triple anticoagulation therapy
* Subject is currently enrolled in or has not yet completed at least 30 days since ending other investigational device or drug trial(s), or subject is receiving other investigational agent(s)
* Subject has known sensitivity or intolerance to any of the products to be administered for the purpose of this study
* Subject has any kind of disorder that compromises the ability of the subject to give written informed consent and/or to comply with the study procedures
* Subject is pregnant or breast feeding
* SARS-CoV-2 spike protein antibodies four weeks after the 3rd last vaccination \> 0.8 BAU/mL
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medical University of Vienna

OTHER

Sponsor Role lead

Responsible Party

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Roman Reindl-Schwaighofe

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Medical University of Vienna

Vienna, , Austria

Site Status

Countries

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Austria

Other Identifiers

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BOOST_TX_SubA

Identifier Type: -

Identifier Source: org_study_id

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