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CLINICAL PREDICTORS of ATTENUATED ANTIBODY RESPONSE to PRIMARY SARS-COV-2 VACCINATION in A LARGE PROSPECTIVE STUDY of PATIENTS with RHEUMATIC and MUSCULOSKELETAL DISEASES
Annals of the Rheumatic Diseases ; 81:369-370, 2022.
Article in English | EMBASE | ID: covidwho-2009092
ABSTRACT

Background:

An attenuated humoral response to SARS-CoV-2 vaccination has been observed in some patients with rheumatic and musculoskeletal diseases (RMD) (1). We sought to identify clinical factors associated with poor humoral response following primary (two-dose mRNA or single adenoviral vector dose) SARS-COV-2 vaccination in patients with RMD on immunosuppression.

Objectives:

To identify clinical predictors of an attenuated antibody response to primary SARS-CoV-2 vaccination in RMD patients on immunosuppression.

Methods:

We included patients ≥18 years old with RMD on immunosuppres-sion who received either two-dose mRNA or single dose Janssen/Johnson and Johnson (J&J) vaccination. Demographics, diagnoses, and therapeutic regimens were collected via participant report;those with prior COVID-19 infection were excluded. One month after vaccination, participants underwent SARS-CoV-2 antibody testing on the semi-quantitative Roche Elecsys anti-SARS-CoV-2 S enzyme immunoassay, which measures antibody to the SARS-CoV-2 S-recep-tor binding domain (RBD) protein (ceiling >250U/mL later expanded to >2500U/mL). Associations were evaluated using Fisher's exact and Wilcoxon rank sum tests. Logistic regression analyses were performed to evaluate for clinical factors associated with antibody response. We adapted survival methods to address right-truncation of titers;this methodology was used to calculate medians. Participants provided informed consent electronically and the study was approved by the local Institutional Review Board.

Results:

We studied 1138 RMD participants on immunosuppression;most were female (93%) and white (91%) (Table 1). One-hundred and ffteen (10%) had anti-RBD response in the negative range at a median (IQR) of 29 days (28-34) following completion of vaccine series. A greater proportion of participants with negative response were non-white, received J&J vaccine, reported use of myco-phenolate, rituximab, or glucocorticoids. Antibody response differed by immuno-suppressive regimen, with those receiving rituximab having poorest response (Figure 1). Use of mycophenolate (aOR 9.92, p=0.001), rituximab (aOR 56.99, p=0.001), glucocorticoids (aOR 2.99, p=0.001) or receipt of J&J (aOR 3.13, p=0.039) were associated with negative antibody response.

Conclusion:

Use of mycophenolate, glucocorticoids, rituximab and receipt of J&J vaccine were the strongest predictors of an attenuated antibody response to primary SARS-CoV-2 vaccination;these data support use of an additional primary dose in RMD patients.
Keywords

Full text: Available Collection: Databases of international organizations Database: EMBASE Type of study: Cohort study / Observational study / Prognostic study Topics: Vaccines Language: English Journal: Annals of the Rheumatic Diseases Year: 2022 Document Type: Article

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Full text: Available Collection: Databases of international organizations Database: EMBASE Type of study: Cohort study / Observational study / Prognostic study Topics: Vaccines Language: English Journal: Annals of the Rheumatic Diseases Year: 2022 Document Type: Article