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Background: Despite impaired humoral response in patients treated with immunosuppressants (ISPs), recent studies found similar severity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) breakthrough infection compared to controls. One potential explanation is the rapid generation of humoral response on infection, but evidence is lacking., Objectives: We investigated the longitudinal dynamics of the SARS-CoV-2 antibody repertoire after SARS-CoV-2 delta and omicron breakthrough infection in patients with immune-mediated inflammatory diseases (IMIDs) receiving ISP therapy and controls., Methods: As a prospective substudy of the national Target-to-B! (T2B!) consortium, we included IMID patients receiving ISPs therapy and controls who reported SARS-CoV-2 breakthrough infection between July 1, 2021, and April 1, 2022. To get an impression of the dynamics of the antibody repertoire, 3 antibody titers of wild-type RBD, wild-type S, and omicron RBD were measured at 4 time points after SARS-CoV-2 breakthrough infection., Results: We included 302 IMID patients receiving ISPs and 178 controls. Antibody titers increased up to 28 days after breakthrough infection in both groups. However, in IMID patients receiving therapy with anti-CD20 and sphingosine-1 phosphate receptor modulators, antibody titers were considerably lower compared to controls. In the anti-TNF group, we observed slightly lower antibody titers in the early stages and a faster decline of antibodies after infection compared to controls. Breakthrough infections were mostly mild, and hospitalization was required in less than 1% of cases., Conclusions: Most ISPs do not influence the dynamics of the SARS-CoV-2 antibody repertoire and exhibit a rapid recall response with cross-reactive antibody clones toward new virus variants. However, in patients treated with anti-CD20 therapy or sphingosine-1 phosphate receptor modulators, the dynamics were greatly impaired, and to a lesser extent in those who received anti-TNF. Nevertheless, only a few severe breakthrough cases were reported., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)

Background: Patients with immune-mediated inflammatory diseases (IMIDs) on immunosuppressants (ISPs) may have impaired long-term humoral immune responses and increased disease activity after SARS-CoV-2 infection. We aimed to investigate long-term humoral immune responses against SARS-CoV-2 and increased disease activity after a primary SARS-CoV-2 infection in unvaccinated IMID patients on ISPs., Methods: IMID patients on active treatment with ISPs and controls (i.e. IMID patients not on ISP and healthy controls) with a confirmed SARS-CoV-2 infection before first vaccination were included from an ongoing prospective cohort study (T2B! study). Clinical data on infections and increased disease activity were registered using electronic surveys and health records. A serum sample was collected before first vaccination to measure SARS-CoV-2 anti-receptor-binding domain (RBD) antibodies., Results: In total, 193 IMID patients on ISP and 113 controls were included. Serum samples from 185 participants were available, with a median time of 173 days between infection and sample collection. The rate of seropositive IMID patients on ISPs was 78% compared to 100% in controls (p < 0.001). Seropositivity rates were lowest in patients on anti-CD20 (40.0%) and anti-tumor necrosis factor (TNF) agents (60.5%), as compared to other ISPs (p < 0.001 and p < 0.001, respectively). Increased disease activity after infection was reported by 68 of 260 patients (26.2%; 95% CI 21.2-31.8%), leading to ISP intensification in 6 out of these 68 patients (8.8%)., Conclusion: IMID patients using ISPs showed reduced long-term humoral immune responses after primary SARS-CoV-2 infection, which was mainly attributed to treatment with anti-CD20 and anti-TNF agents. Increased disease activity after SARS-CoV-2 infection was reported commonly, but was mostly mild., Trial Registration: NL74974.018.20, Trial ID: NL8900. Registered on 9 September 2020., (© 2023. The Author(s).)

For patients with immune-mediated inflammatory diseases (IMIDs), concerns exist about increased disease activity after vaccination. We aimed to assess changes in disease activity after SARS-CoV-2 vaccination in patients with IMIDs, and determine risk factors for increased disease activity. In this substudy of a prospective observational cohort study (Target-to-B!), we included patients with IMIDs who received a SARS-CoV-2 vaccine. Patients reported changes in disease activity on a five-point Likert scale every 60 days for up to twelve months after first vaccination. In case of self-reported increased activity, hospital records were screened whether the treating physician reported increased activity, and for potential intensification of immunosuppressive (ISP) treatment. Mixed models were used to study determinants for self-reported increased disease activity. In total, 2111 patients were included for analysis after primary immunization (mean age 49.7 years [SD 13.7], 1329/2111 (63.0%) female), from which 1266 patients for analysis after first additional vaccination. Increased disease activity at 60 days after start of primary immunization was reported by 223/2111 (10.6%). In 96/223 (43.0%) the increase was confirmed by the treating physician and in 36/223 (16.1%) ISP treatment was intensified. Increased disease activity at seven to 60 days after additional vaccination, was reported by 139/1266 (11.0%). Vaccinations were not temporally associated with self-reported increased disease activity. Conversely, increased disease activity before first vaccination, neuromuscular disease, and multiple sclerosis were associated. Altogether, self-reported increased disease activity after vaccination against SARS-CoV-2 was recorded in a minority of patients and was generally mild. Moreover, multivariate analyses suggest that disease related factors, but not vaccinations are the major determinants for self-reported increased disease activity., Competing Interests: Declaration of competing interest F Eftimov and T Kuijpers report (governmental) grants from ZonMw to study immune response after SARS-Cov-2 vaccination in auto-immune diseases. F Eftimov also reports grants from Prinses Beatrix Spierfonds, CSL Behring, Kedrion, Terumo BCT, Grifols, Takeda Pharmaceutical Company, and GBS-CIDP Foundation; consulting fees from UCB Pharma and CSL Behring; honoraria from Grifols. AJ van der Kooi reports grants from CSL Behring and participation on an advisory board for Argen-X. M Löwenberg reports a grant from Galapagos not related to this study, and honoraria from Bristol Myers Squibb, Pfizer, Takeda, and Tillotts. Ph I Spuls is involved in performing clinical trials with many pharmaceutical industries that manufacture drugs used for the treatment of e.g. psoriasis and atopic dermatitis, for which financial compensation is paid to the department/hospital and is a chief investigator of the TREAT NL registry taskforce and SECURE-AD registry. M.W. Bekkenk is a secretary for Dutch Experimental Dermatology Board and head of the pigmentary disorders group within the Dutch Dermatology Board, and reports honoraria from Pfizer, Sanofi, Novartis and Fondation René Touraine. J Killestein has speaking relationships with Merck Serono, Biogen Idec, TEVA, Sanofi, Genzyme, Roche and Novartis; Amsterdam UMC, location VUmc, MS Center Amsterdam has received financial support for research activities from Merck Serono, Bayer Shcering Pharma, Biogen Idec, GlaxoSmithKline, Roche, Teva, Sanofi, Genzyme, GlaxoSmithKline, and Novartis. B Horváth reports unpaid positions as medical advisor for several patient groups, a board position for ERN-SKIN, and associate editor for The British Journal of Dermatology; reports grants from Abbvie, Akari Therapeutics, Celgene, and Novartis; consulting fees from UCB Pharma, Novartis and Janssen-Cilag; honoraria from Abbvie. J.J.G.M. Verschuuren reports consulting fees from Argenx, Alexion and NMD Pharma; is coinventor on patent applications based on MuSK-related research. DJ Hijnen reports grants from Abbvie, AstraZeneca, Janssen, LEO Pharma and UCB Pharma, and honoraria from Abbvie, Galderma, Janssen, Lilly, Pfizer, Sanofi and UCB Pharma, and a paid position in an advisory board for BIOMAP IMI. P.A. van Doorn participated on an advisory board for Octapharma. P. van Paassen reports grants from Alexion Pharma and GSK; and participation on GSK and Vifor Pharma advisory boards. G.R.A.M. D'Haens reports consulting fees from Abbvie, Agomab, AstraZeneca, AM Pharma, AMT, Arena Pharmaceuticals, Bristol Meiers Squibb, Boehringer Ingelheim, Celltrion, Eli Lilly, Exeliom Biosciences, Exo Biologics, Galapagos, Index Pharmaceuticals, Kaleido, Roche, Gilead, Glaxo Smith Kline, Gossamerbio, Pfizer, Immunic, Johnson and Johnson, Origo, Polpharma, Procise Diagnostics, Prometheus laboratories, Prometheus Biosciences, Progenity, and Protagonist; honoraria from Abbvie, Arena, Galapagos, Gilead, Pfizer, BMS, Takeda; participation on advisory boards for Abbvie, Seres Health, Galapagos, and AstraZeneca. R.B. Takkenberg reports honoraria from Sobi and Norgine and participation in an advisory board for Norgine. SH Goedee is a board member of the Dutch Society of Clinical Neurophysiology (unpaid), reports grants from Prinses Beatrix Spierfonds, and received speaker fees from Shire/Takeda. AH Zwinderman reports paid data safety monitoring board positions for Torrent Ltd and Foresee Pharmaceuticals Co. No other disclosures were reported. Bar plot showing proportions of self-reported increased disease activity (with corresponding 95% CI's), physician confirmed increased disease activity, and treatment intensification, within each IMID group at 60 days after start of primary immunization. IBD: inflammatory bowel disease; IMID: immune-mediated inflammatory disease; ISP: immunosuppressant; MS: multiple sclerosis; NMO: neuromyelitis optica; SLE: systemic lupus erythematosus. Bar plot showing incidence of self-reported increased disease activity at different timepoints. A) self-reported increased disease activity within 60 days after vaccination: at 60 days after start of primary immunization (prim. imm.), seven to 60 days after first additional vaccination (add. vacc.), and at other follow-up moments within seven to 60 days after a vaccination other than the moments mentioned before (e.g. second vaccination of primary immunization or second additional vaccination). B) self-reported increased disease activity not within 60 days after vaccination, in the two-monthly follow-up surveys starting at first vaccination. Figure showing the results of the multivariate mixed model on determinants of self-reported increased disease activity. RR's with corresponding 95% CI for age, female sex, BMI, IMID group (with gastro-intestinal disease as reference group), recent increased disease activity (self-reported increased disease activity in the three months preceding enrollment), ISP use, and any SARS-CoV-2 vaccination in 60 days before the survey. BMI: body mass index; CI: confidence interval; IMID: immune-mediated inflammatory disease; ISP: immunosuppressant; MS: multiple sclerosis; NMO: neuromyelitis optica; RR: relative risk; SARS-CoV-2: severe acute respiratory syndrome coronavirus 2., (Copyright © 2022. Published by Elsevier Ltd.)

Objectives: To compare the cumulative incidence and disease severity of reported SARS-CoV-2 omicron breakthrough infections between patients with immune-mediated inflammatory diseases (IMID) on immunosuppressants and controls, and to investigate determinants for breakthrough infections., Methods: Data were used from an ongoing national prospective multicentre cohort study on SARS-CoV-2 vaccination responses in patients with IMID in the Netherlands (Target-to-B! (T2B!) study). Patients wih IMID on immunosuppressants and controls (patients with IMID not on immunosuppressants and healthy controls) who completed primary immunisation were included. The observation period was between 1 January 2022 and 1 April 2022, during which the SARS-CoV-2 omicron (BA.1 and BA.2 subvariant) was dominant. A SARS-CoV-2 breakthrough infection was defined as a reported positive PCR and/or antigen test at least 14 days after primary immunisation. A multivariate logistic regression model was used to investigate determinants., Results: 1593 patients with IMID on immunosuppressants and 579 controls were included. The cumulative incidence of breakthrough infections was 472/1593 (29.6%; 95% CI 27% to 32%) in patients with IMID on immunosuppressants and 181/579 (31.3%; 95% CI 28% to 35%) in controls (p=0.42). Three (0.5%) participants had severe disease. Seroconversion after primary immunisation (relative risk, RR 0.71; 95% CI 0.52 to 0.96), additional vaccinations (RR 0.61; 95% CI 0.49 to 0.76) and a prior SARS-CoV-2 infection (RR 0.60; 95% CI 0.48 to 0.75) were associated with decreased risk of breakthrough infection., Conclusions: The cumulative incidence of reported SARS-CoV-2 omicron breakthrough infections was high, but similar between patients with IMID on immunosuppressants and controls, and disease severity was mostly mild. Additional vaccinations and prior SARS-CoV-2 infections may reduce the incidence of breakthrough infections., Competing Interests: Competing interests: FE and TWK report (governmental) grants from ZonMw to studyimmune response after SARS-Cov-2 vaccination in autoimmune diseases.FE also reports grants from Prinses Beatrix Spierfonds, CSL Behring,Kedrion, Terumo BCT, Grifols, Takeda Pharmaceutical Company, andGBS-CIDP Foundation; consulting fees from UCB Pharma and CSlBehring; and honoraria from Grifols. AJvdK reports grants from CSLBehring and participation on an advisory board for Argen-X. ML reports agrant from Galapagos not related to this study, and honoraria from BristolMyers Squibb, Pfizer, Takeda, and Tillotts. PIS is involved in clinical trialswith many pharmaceutical industries that manufacture drugs used for thetreatment of, for example, psoriasis and atopic dermatitis, for whichfinancial compensation is paid to the department or hospital, and is achief investigator of the TREAT NL registry taskforce and SECURE-ADregistry. MWB is a secretary for the Dutch Experimental DermatologyBoard; head of the pigmentary disorders group within the DutchDermatology Board; and reports honoraria from Pfizer, Sanofi, Novartis,and Fondation René Touraine. JK has speaking relationships with MerckSerono, Biogen Idec, TEVA, Sanofi, Genzyme, Roche, and Novartis;received financial support to his institution for researchactivities from Merck Serono, Bayer Shcering Pharma, Biogen Idec,GlaxoSmithKline (GSK), Roche, Teva, Sanofi, Genzyme, and Novartis. BHreports unpaid positions as a medical adviser for several patient groups, aboard position for ERN-SKIN, and associate editor for The British Journalof Dermatology; reports grants from AbbVIe, Akari Therapeutics, Celgene, and Novartis; consulting fees from UCB Pharma, Novartis, and Janssen; and honoraria from AbbVie. JJGMV reports consulting fees from Argenx,Alexion, and NMD Pharma, and is a co-inventor on patent applicationsbased on MuSK-related research. DJH reportsgrants from AbbVie, AstraZeneca, Janssen, LEO Pharma, and UCB;honoraria from AbbVie, Galderma, Janssen, Lilly, Pfizer, Sanofi, and UCB;and a paid position on an advisory board for BIOMAP IMI. PAvDparticipated on an advisory board for Octapharma. PvP reports grantsfrom Alexion Pharma and GSK, and participation on advisory boards forGSK and Vifor Pharma. GRAMD’H reports consulting fees from AbbVie,Agomab, AstraZeneca, AM Pharma, AMT, Arena Pharmaceuticals, BristolMyers Squibb, Boehringer Ingelheim, Celltrion, Eli Lilly, ExeliomBiosciences, Exo Biologics, Galapagos, Index Pharmaceuticals, Kaleido,Roche, Gilead, GSK, Gossamerbio, Pfizer, Immunic, Johnson andJohnson, Origo, Polpharma, Procise Diagnostics, PrometheusLaboratories, Prometheus Biosciences, Progenity, and Protagonist;honoraria from AbbVie, Arena, Galapagos, Gilead, Pfizer, Bristol MyersSquibb, and Takeda; and participation on advisory boards for AbbVie,Seres Health, Galapagos, and AstraZeneca. RBT reports honoraria fromSobi and Norgine, and participation on an advisory board for Norgine.SHG is a board member of the Dutch Society of Clinical Neurophysiology(unpaid), reports grants from Prinses Beatrix Spierfonds, and receivedspeaker fees from Shire/Takeda. KAHZ reports paid data safetymonitoring board positions for Torrent and Foresee. All other authorsdeclare no competing interests., (© Author(s) (or their employer(s)) 2022. No commercial re-use. See rights and permissions. Published by BMJ.)

Background: Studies have suggested incremental short-term adverse events (AE) after repeated vaccination. In this report, we assessed occurrence and risk factors for short-term AEs following repeated SARS-CoV-2 vaccination in patients with various immune-mediated inflammatory diseases (IMIDs)., Methods: Self-reported daily questionnaires on AEs during the first 7 days after vaccination were obtained of 2259 individuals (2081 patients and 178 controls) participating in an ongoing prospective multicenter cohort study on SARS-CoV-2 vaccination in patients with various IMIDs in the Netherlands (T2B-COVID). Relative risks were calculated for potential risk factors associated with clinically relevant AE (rAE), defined as AE lasting longer than 2 days or impacting daily life., Results: In total, 5454 vaccinations were recorded (1737 first, 1992 second and 1478 third vaccinations). Multiple sclerosis, Crohn's disease and rheumatoid arthritis were the largest disease groups. rAEs were reported by 57.3% (95% CI 54.8-59.8) of patients after the first vaccination, 61.5% (95% CI 59.2-63.7) after the second vaccination and 58% (95% CI 55.3-60.6) after the third vaccination. At day 7 after the first, second and third vaccination, respectively, 7.6% (95% CI 6.3-9.1), 7.4% (95% CI 6.2-8.7) and 6.8% (95% CI 5.4-8.3) of patients still reported AEs impacting daily life. Hospital admissions and allergic reactions were uncommon (<0.7%). Female sex (aRR 1.43, 95% CI 1.32-1.56), age below 50 (aRR 1.14, 95% CI 1.06-1.23), a preceding SARS-CoV-2 infection (aRR 1.14, 95% CI 1.01-1.29) and having an IMID (aRR 1.16, 95% CI 1.01-1.34) were associated with increased risk of rAEs following a vaccination. Compared to the second vaccination, the first vaccination was associated with a lower risk of rAEs (aRR 0.92, 95% CI 0.84-0.99) while a third vaccination was not associated with increased risk on rAEs (aRR 0.93, 95% CI 0.84-1.02). BNT162b2 vaccines were associated with lower risk on rAEs compared to CX-024414 (aRR 0.86, 95% CI 0.80-0.93)., Conclusions: A third SARS-CoV-2 vaccination was not associated with increased risk of rAEs in IMID patients compared to the second vaccination. Patients with an IMID have a modestly increased risk of rAEs after vaccination when compared to controls. Most AEs are resolved within 7 days; hospital admissions and allergic reactions were uncommon., Trial Registration: NL74974.018.20 , Trial ID: NL8900. Registered on 9 September 2020., (© 2022. The Author(s).)