Trial NCT05047640
Publication Natori Y, Transpl Int, 2023
Dates: 2021-09-14 to 2021-12-31
Funding: Not reported/unclear
Conflict of interest: no COI
Methods | |
RCT | |
Location :
Single center / USA Follow-up duration (months): 1 | |
BNT162b2 = (n=30) Ad26.COV2.S = (n=30) |
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Inclusion criteria |
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Exclusion criteria |
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Interventions | |
Intervention
1 IM dose of Ad26.COV2.S at least 28 days after the second dose of BNT162b2 |
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Control
1 IM dose of BNT162b2 at least 28 days after the second dose of BNT162b2 | |
Participants | |
Randomized 60 participants | |
Characteristics of participants Type of participants: Transplant recipients N=60 38 males Children: 0 Pregnant women: 0 Immunocompromized patients: 58 Mean age: Age range: 27-76 | |
Description of participants Transplants recpients 18 years of age or older who had received 2 doses of BNT162b2, in a single center in USA. | |
Primary outcome | |
In the register Percentage of Participants Who Tested Positive for IgG Antibodies to the Anti-spike Protein of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) [ Time Frame: Up to 1 month (post booster vaccination) ] Anti-spike protein of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2) virus Immunoglobulin G (IgG) positivity rate will be assessed from serum blood samples | |
In the report Anti-spike protein SARS- CoV-2 IgG positivity after 28 (21–35) days of the booster dose | |
Documents available |
Protocol Yes. In English Statistical plan Yes Data-sharing stated:
No |
Risk of bias Overall The overall risk of bias reported in the table corresponds to the highest risk of bias for the outcomes assessed for the systematic review |
Some concerns |
General comment | In addition to all available versions of the published/pre-print article, the study registry was used in data extraction and risk of bias assessment. The study was terminated early due to "Difficulty in recruitment". As a result, the target sample size (n=186) was not achieved (n= 60). Results were retrieved from the registry. There were no important differences between registry and published report in population, procedures and interventions.However, the timepoints of the outcomes reported were different between registry/protocol and report (6 month in the regsitry and protocol, vs 1 month in the report). |