Adverse events and SARS-CoV-2 antibody responses after immunization with Sputnik V, ChAdOx1-S, and BBIBP-CorV vaccines in people with HIV.

Objective: This study describes adverse events following immunization (AEFIs) and the development of SARS-COV-2 antibodies after Sputnik V, AstraZeneca, and Sinopharm COVID-19 vaccination in people with HIV (PWH).
Methods: In total, 595 adult PWH at an HIV center in Argentina from March to December 2021 were enrolled. Analysis included participants who received COVID-19 vaccination with Sputnik V, AstraZeneca, and Sinopharm, and did not receive mRNA COVID-19 vaccines. Clinical data, and local or systemic AEFI variables were collected using an online questionnaire after the first dose. Detection of S1-RBD IgG antibodies was performed between days 28 and 60 after the second dose in a subsample (SARS-CoV-2 IgG chemiluminescent immunoassay; Siemens). A multivariable logistic regression and spearman test were used for analyses.
Results: Mean age was 46.1 years (SD = 11.8); 70.4% were men; and median CD4 + T cells count was 659 (500-852) cells/μl. AEFIs were reported in 214 (36.0%) participants. More participants reported AEFIs after Sputnik V (29.4%) and AstraZeneca (47.5%) than Sinopharm (13.9%) (χ 2  = 35.85, P  < 0.001). Higher odds of reporting an AEFIs were associated with receiving Sputnik V [aOR = 2.90; 95% confidence interval (95% CI) = 1.40-6.04; P  = 0.004] and AstraZeneca (aOR = 5.38; 95% CI = 2.63-11.01; P  < 0.001) compared with Sinopharm. Lower odds were associated with age (aOR = 0.97; 95% CI = 0.95-0.99; P  < 0.001). Overall, 76 (95.0%) individuals assessed for the presence of SARS-CoV-2 antibody reached S1-RBD IgG antibody titers at least 1 U/ml; mean titer was 51.3 (SD = 51.07) U/ml. Higher antibody titers correlated with higher CD4 + T cells count (Rho = 0.280; P  = 0.012).
Conclusion: NonmRNA vaccines showed a good safety profile and adequate SARS-CoV-2 antibody responses among PWH suggesting adequate protection to SARS-CoV-2.
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