Pneumococcal and influenza vaccination rates in patients treated with corticosteroids and/or immunosuppressive therapies for systemic autoimmune diseases: A cross-sectional study

Assessing the Vaccination Status and Barriers to Influenza, Pneumococcal, and COVID-19 Vaccination Among Moroccan Patients With Chronic Inflammatory Rheumatic Disease

OBJECTIVE

To evaluate the vaccination coverage of patients with chronic inflammatory rheumatic disease (CIRD) against influenza, pneumococcus, and COVID-19 and to determine, per the patients' point of view, the possible factors related to vaccination hesitation and/or refusal.

METHODS

A cross-sectional study carried out by the vaccination working group of the Moroccan Society of Rheumatology, including patients with CIRD in Morocco. Information about vaccination coverage and reasons for non-vaccination against influenza, pneumococcal infection, and COVID-19 was collected.

RESULTS

This survey included 230 patients (mean age of 46.9 +/-13.89 years; 68.7% females) affected by CIRD (rheumatoid arthritis 53%, spondyloarthritis 39.6%, psoriatic arthritis 7%). The study shows a significant lack of influenza and pneumococcal vaccination in CIRD patients, with vaccination coverage against influenza, pneumococcal infection, and COVID-19 at 2.2%, 0.4%, and 80.9%, respectively. The main reason for non-vaccination against influenza and pneumococcus was related to the absence of recommendations by their doctors (77%, 87%, p = 0.04). Additionally, the primary reason for non-vaccination against COVID-19 was the fear of the vaccine's side effects (51%, p = 0.0001), mainly a flare-up of CIRD (44%, p = 0.001).

CONCLUSION

This survey shows a lack of influenza, pneumococcal, and COVID-19 vaccination in CIRD patients. The principal actions to improve vaccination should aim to educate patients and encourage rheumatologists to vaccinate their patients.

Single-centre, cross-sectional study on the factors and reasons for non-vaccination among patients with rheumatoid arthritis

OBJECTIVES

We aimed to investigate the vaccination coverage and the factors associated with non-vaccination for vaccine-preventable diseases among patients with rheumatoid arthritis.

METHODS

This single-centre, cross-sectional study was conducted in a 715-bed regional tertiary-care teaching hospital in Japan from 1 September to 30 November 2020. Vaccination status and the factors and reasons for not receiving the influenza vaccine, 23-valent pneumococcal polysaccharide vaccine (PPSV23), 13-valent pneumococcal conjugate vaccine (PCV13), and varicella vaccine live (VVL) were investigated.

RESULTS

Among 991 patients, the vaccination coverage for the influenza vaccine, PPSV23, PCV13, and VVL was 62%, 46%, 14%, and 3%, respectively. The most common reasons for vaccine hesitancy were efficacy concerns for the influenza vaccine, safety concerns for the PPSV23 and PCV13, and both efficacy and safety concerns for the VVL. Younger age, no use of biologics or other hospital visits, and public assistance were factors significantly associated with non-vaccination for the influenza vaccine; younger age, short disease duration, and no visits to other hospitals for PPSV23; younger age, no hospitalisation, more experienced doctor, and no medical immunodeficiency for PCV13.

CONCLUSIONS

We found that the factors associated with non-vaccination varied by vaccine type; therefore, vaccinations should be promoted with individualised strategies.

Do Not Leave Your Patients in the Dark-Using American College of Rheumatology and European Alliance of Associations for Rheumatology Recommendations for Vaccination in Polish Adult Patients with Autoimmune Inflammatory Rheumatic Diseases

(1) Introduction: Patients with autoimmune inflammatory rheumatic diseases (AIIRD) face a higher infectious risk compared to the general population. As per the ACR and EULAR recommendations, vaccinations against influenza, COVID-19, pneumococci, and tetanus are recommended for most patients with AIIRD. (2) Objectives: This study aimed to assess vaccination coverage among Polish AIIRD patients and identify factors influencing it. (3) Patients and Methods: This study was conducted at the reference rheumatological center in Poland between May 2023 and October 2023. The study participants completed a questionnaire covering their knowledge of vaccination recommendations, actual vaccination status, factors affecting their decision to vaccinate, and their perspectives on immunization. (4) Results: This study involved 300 AIIRD patients and 60 controls. Both groups exhibited comparably low vaccination rates for all diseases (the highest for COVID-19-52% in both groups and the lowest for pneumococci-7.7% and 10%, respectively). Knowledge about recommended vaccinations was limited among patients in both groups. AIIRD patients were also not aware that they should avoid live vaccines. The primary motivators for vaccination among AIIRD patients were fear of infection (up to 75%) and medical advice (up to 74.6%). Conversely, the predominant reasons for non-vaccination were a lack of knowledge that vaccination is recommended (up to 74.7%) and concerns about potential adverse effects (up to 48.6%). Many patients reported not receiving vaccination recommendations from either primary care physicians or rheumatologists. (5) Conclusions: To enhance vaccination coverage among AIIRD patients in Poland, it is essential to educate them about vaccinations during routine medical consultations, emphasizing the increased risk of infection, informing them about recommended vaccinations, and clarifying doubts about adverse effects.

Factors and Reasons for Non-vaccination among Patients with Systemic Lupus Erythematosus: A Single-centre, Cross-sectional Study

Objective This study aimed to clarify the vaccination coverage of vaccine-preventable diseases and the factors and reasons for non-vaccination among patients with systemic lupus erythematosus (SLE). Methods This single-centre, cross-sectional study was conducted from 1 September to 30 November 2020 in a 715-bed regional tertiary-care teaching hospital in Japan. A questionnaire survey was undertaken to investigate the vaccination status of patients with SLE, and the factors and reasons for not receiving the influenza vaccine, 23-valent-pneumococcal-polysaccharide vaccine (PPSV23), 13-valent pneumococcal conjugate vaccine (PCV13), varicella vaccine live (VVL), and recombinant zoster vaccine (RZV). Results The vaccination coverage for the influenza vaccine, PPSV23, PCV13, VVL, and RZV was 61%, 22%, 19%, 3.4%, and 0%, respectively, among 261 patients. The most common reason for vaccine hesitancy was 'efficacy concerns about vaccines' for the influenza vaccine and 'cost' for PPSV23 and PCV13. The factors significantly associated with non-vaccination were prescription of high-dose glucocorticoids and no history of visits to other internal medicine clinics for the influenza vaccine; a younger age and prescription of high-dose glucocorticoids for PPSV23; and a younger age, no medication with hydroxychloroquine, no history of hospitalisation in internal medicine, and extensive clinical experience of the doctor for PCV13. Conclusion These findings, which demonstrated that the factors and reasons for non-vaccination varied by vaccine type, suggest that individualised strategies should be used to promote vaccination in this population.

Multi-Organ System Screening, Care, and Patient Support in Systemic Sclerosis

Systemic sclerosis (SSc) is a heterogenous systemic autoimmune disease of complex multi-organ manifestations with a disease-specific mortality of >50%. The patient journey is fraught with severe, diverse, and diffuse physical impairment, psychological burden, and diminishing health-related quality of life. SSc remains unfamiliar to many clinicians. Delayed/misdiagnosis, inadequate screening, and attention for common complications with potentially preventable disability/death contribute to patients feeling isolated and unsupported. We present actionable standards including screening, anticipatory guidance, and counseling in patient-centered SSc-care emphasizing psycho-social health as the central goal, whereas robust vigilance and efforts to improve biophysical health and survival are imperatives that support this goal.

Active vaccination campaign to increase seasonal influenza vaccination coverage: a monocenter experience in a cohort of Italian patients with systemic autoimmune diseases

Seasonal influenza is a frequent cause of hospitalization and mortality among patients with systemic autoimmune diseases. Despite this evidence, vaccination coverage is generally much lower than the minimum 75% target proposed by the WHO. Therefore, an active campaign was implemented in the years 2019/2020 and 2020/2021 within the Rheumatology Department of the Niguarda Hospital (Milan, Italy) to improve the vaccination coverage in patients with inflammatory arthritis. This study aims to evaluate the vaccination coverage in the 2019/2020 and 2020/2021 (active campaigns) seasons and to compare these results with the 2018/2019 season. A monocenter observational study was conducted among adult patients with rheumatoid arthritis, spondylarthritis, or psoriatic arthropathy, who were referred to the Rheumatology Department of the Niguarda Hospital. Patients were given a questionnaire to investigate previous years' vaccination coverage and to propose an influenza vaccine for the 2020/2021 season. Compared with 2018/2019, a trend for increase in vaccination coverage was reported in 2019/2020 season (+ 10.7%, p = 0.055; 45.5% of coverage) and a statistically significant increase was reported in 2020/2021 (+ 31.2%, p < 0.001; 65.9% of coverage). The increase was also significant when comparing the 2020/2021 and 2019/2020 seasons (+ 20.5%, p < 0.001). The greatest increase in vaccination coverage was observed among under-65-year-old patients. Obtained results support the implementation of active vaccination campaigns to increase vaccination coverage among patients with systemic autoimmune diseases and highlight the importance of external factors (such as the COVID-19 pandemic) in directing the patient to adopt preventive measures to avoid infections and related complications.

Understanding predictors of pneumococcal vaccine uptake in older adults aged 65 years and older in high-income countries across the globe: A scoping review

BACKGROUND

Pneumococcal disease causes substantial morbidity and mortality in older adults. Pneumococcal polysaccharide vaccine (PPV23) is routinely recommended to reduce the disease burden in this population. However, the vaccination coverage in older adults remains suboptimal in high-income countries.

OBJECTIVES

We sought to understand the current landscape of published literature on the predictors of pneumococcal vaccine uptake in older adults aged 65 years and older in high-income countries, and to identify the gaps in literature to inform future research.

METHODS

We conducted a scoping review employing the Arksey and O'Malley framework and Joanna Briggs Methods. We searched Medline, EMBASE, CINAHL, PsycInfo and Cochrane databases. We included quantitative and qualitative studies on predictors of pneumococcal vaccination in older adults that reported older adult- and pneumococcal vaccine-specific results, conducted in high-income settings, and published in English between January 2015 and April 2020. We excluded studies assessing interventions to improve vaccine uptake. We followed the Strategic Advisory Group of Experts on Immunization Working Group Vaccine Hesitancy Determinants Matrix to map the predictors within contextual, individual and social group, and vaccine and vaccination-specific influence determinants. Studies on providers and institutions were also included and results summarized separately.

RESULTS

We included 52 publications in our review. Most of the predictors in 39 quantitative studies belonged to the individual and social group influences (n = 12), followed by contextual influences (n = 11) and vaccine and vaccination-specific issues (n = 3). Few qualitative studies explored the barriers to pneumococcal vaccination. Only five studies examined predictors from the healthcare providers' perspective. Three studies examined the institutional characteristics as the predictors of pneumococcal vaccination in older adults.

CONCLUSIONS

We identified enablers and barriers of pneumococcal vaccination among older adults in high-income settings. We also identified gaps in the literature and provide recommendations for future research to address the gaps.

Immunogenicity of SARS-CoV-2 vaccination in rituximab-treated patients: Effect of timing and immunologic parameters

Rituximab (RTX), an important therapeutic option for patients with rheumatic diseases, has been shown to reduce immune responses to various vaccines. We asked whether following SARS-CoV-2 vaccination, response rates in RTX treated patients are reduced and whether specific patient characteristics influence the responses. We recruited patients on chronic RTX therapy undergoing anti-SARS-CoV2 vaccination and measured the post-vaccination anti-spike IgG antibody levels. The median time from pre-vaccination RTX infusion to vaccination and from vaccination to the post-vaccination RTX infusion was 20.5 weeks and 7.2 weeks respectively. Only 36.5% of patients developed measurable titers of IgG anti-SARS-CoV-2 spike antibody after vaccination. Hypogammaglobulinemia (IgG and/or IgM) but not timing of vaccination, B cell numbers, or concomitant immune suppressive medications, correlated with sero-negativity (p = 0.004). Our results underscore the fact that even after B cell reconstitution, RTX induced chronic hypogammaglobulinemia significantly impairs the ability of the immune system to respond to SARS-CoV-2 vaccination.

Flu and Pneumococcal Vaccine Coverage in Scleroderma Patients Still Need to Be Prompted: A Systematic Review

Systemic sclerosis (scleroderma, SSc) is an autoimmune connective tissue disease characterized by excessive production of collagen and multiorgan involvement. Scleroderma patients are at increased risk of influenza complications and pneumonia; thus, vaccinations are recommended. This systematic review evaluated the influenza and pneumococcus vaccination coverage for SSc patients. We included all studies from Pubmed reporting on influenza and pneumococcal vaccination rate in Scleroderma patients up to May 2021. The 14 studies thus selected identified a suboptimal vaccination rate in autoimmune and SSc patients, ranging from 28 to 59% for the flu vaccine, and from 11 to 58% for the pneumo vaccine in absence of specific vaccination campaigns, variously considering also other variables such as age, gender, vaccination settings, and possible vaccination campaigns. We also considered the reasons for low coverage and the approaches that might increase the vaccination rates. A lack of knowledge about the importance of vaccination in these patients and their doctors underlined the need to increase the awareness for vaccination in this patients' category. Current guidelines recommend vaccination in elderly people and people affected by particular conditions that widely overlap with SSc, yet autoimmune diseases are not always clearly mentioned. Improving this suboptimal vaccination rate with clear guidelines is crucial for SSc patients and for clinicians to immunize these categories based principally on the pathology, prior to the age. Recommendations by the immunologist and the direct link to the vaccine providers can highly improve the vaccine coverage.

Influenza and pneumococcal vaccination coverage in Latin American patients with systemic lupus erythematosus: a cross-sectional and comparative study

BACKGROUND

Infections are a major cause of morbidity and mortality in systemic lupus (SLE). Vaccination would be an effective method to reduce infection rate. Coverage for influenza and pneumococcus appears to be low in Latin America. The objective of this study was to evaluate vaccination coverage for influenza and pneumococcus in Latin America, causes of non-vaccination and to compare it with European patients.

METHODS

A survey was conducted through social networks targeting Latin American lupus patients. A self-report was used to assess the demographics, risk factors for pneumonia, vaccination status, and causes of non-vaccination. The same method was used for European patients. We used binary logistic regression to identify factors associated with pneumococcal and influenza vaccination.

RESULTS

There were 1130 participants from Latin America. Among them, 97% were women with an average of 37.9 years (SD: 11.3) and 46.5% had more than 7 years of disease duration. Two or more risk factors for pneumonia were found in 64.9%. Coverage for influenza and pneumococcal was 42.7 and 25% respectively, being lower than in Europe. Tetanus coverage was the most important predictor for receiving influenza and pneumococcal vaccination. Lack of prescription was the most common cause of non-application (64.6%).

CONCLUSIONS

Vaccination coverage for influenza and pneumonia is low in Latin America, especially compared to Europe. It is necessary to make specialists aware of their role in vaccine control and to implement measures to improve coordination between them and general practitioners.

Rituximab-associated hypogammaglobulinemia in autoimmune rheumatic diseases: a single-center retrospective cohort study

B-cell targeted therapies, such as rituximab (RTX), are used widely in autoimmune rheumatic diseases (AIRD). RTX can cause hypogammaglobulinemia and predispose patients to infections. Herein, we asked whether the underlying diagnosis influences the risk for hypogammaglobulinemia in patients treated with RTX. All patients who received RTX infusions and carried a diagnosis of rheumatoid arthritis (RA), ANCA-associated vasculitis (AAV), or connective tissue disease (CTD) were included in this single-center retrospective cohort study. We used STATA® for analysis: Chi-square test was used for comparing categorical variables. Based on distribution, continuous variables were compared using the t test/ANOVA or the Wilcoxon/Kruskal-Wallis tests. Of the 163 patients who received RTX for an AIRD, 60 with pre- and post- RTX immunoglobulins were analyzed. A higher incidence of post-treatment hypogammaglobulinemia was seen in AAV (45%) compared to RA (22%) and CTD (9.1%) groups (p = 0.03). Glucocorticoid exposure of 10 mg or more was identified as a significant risk factor for hypogammaglobulinemia. Finally, we observed a higher number of clinically significant infections per person in the AAV group than in the RA and CTD groups. We observed an increased incidence of hypogammaglobulinemia in the RTX-treated AAV group, with almost half of patients developing post-RTX hypogammaglobulinemia. The rate of infections per person was highest in the AAV group. Screening immunoglobulins were not consistently measured pre- and post-RTX. Results highlight a need for increased awareness of the role of immunoglobulin measurement before maintenance doses of RTX, especially in patients with AAV and steroid exposure.

Immunogenicity of the Currently Recommended Pneumococcal Vaccination Schedule in Patients With Inflammatory Bowel Disease

BACKGROUND

Patients with inflammatory bowel disease (IBD) are at increased risk of invasive pneumococcal infections. Therefore, vaccination with the 13-valent pneumococcal conjugate vaccine (PCV13) followed by 23-valent pneumococcal polysaccharide vaccine (PPSV23) 2 months later is recommended. However, the level of immunogenicity induced by this vaccination schedule in IBD patients with and without immunosuppressive medication remains unclear.

METHODS

We prospectively assessed the immunogenicity of PCV13 followed by PPSV23 in IBD patients by measuring serotype-specific pneumococcal immunoglobulin G antibody concentrations at baseline and 4-8 weeks postvaccination. Response to vaccination was defined as a postvaccination antibody concentration ≥1.3 μg/mL for 70% of the measured serotypes. We analyzed the immunogenic effect of 4 different medication regimens: (1) conventional immunomodulators (ie, oral prednisolone >10 mg/day, thiopurines, methotrexate); (2) anti-tumor necrosis factor agents; (3) combination therapy; and (4) no treatment with immunosuppressive agents (control group).

RESULTS

One hundred forty-one IBD patients were included, of whom 37 were controls. Adequate response to vaccination was 59% (61/104) in patients using immunosuppressive agents (groups 1-3) vs 81% (30/37) in controls (odds ratio, 0.33 [95% confidence interval, .13-.82]). A combination of different immunosuppressive drugs most severely impaired the immune response to pneumococcal vaccination (response, 52% [15/29]).

CONCLUSIONS

Although the sequential vaccination schedule of PCV13 followed by PPSV23 is safe, immunogenic, and thus beneficial in the majority of IBD patients, those receiving immunosuppressive agents, and especially those receiving combination therapy, have an impaired immune response compared to controls. Therefore, preferably, vaccinations should be administered before the initiation of immunosuppressive therapy.

CLINICAL TRIALS REGISTRATION

Dutch trial register #6315.

Identifying perceptions and barriers regarding vaccination in patients with rheumatoid arthritis: A Canadian perspective

AIM

Canadian guidelines recommend that patients with rheumatoid arthritis (RA) receive pneumococcal, influenza and shingles vaccinations. The aim of this study was to identify and understand vaccination rates in Canadian patients with RA.

METHODS

We conducted an observational study to evaluate uptake of herpes zoster (HZ), influenza and pneumonia vaccination in a cross-section of patients with RA in Kingston, Ontario, Canada. Data were collected using a self-administered questionnaire in patients attending at an academic rheumatology clinic. If vaccination was not received, the reason was established.

RESULTS

Ninety-eight out of a total of 103 patients surveyed met the inclusion criteria and were evaluated: 72.4% had received the influenza vaccination in the past year encompassing a period of 2017-2019. Of the 27.6% who did not, the most common chosen reason was personal preference not to get vaccinated (55.6%). Regarding HZ, 18.4% had received vaccination. Of the 2 available types of vaccines, more participants received Zostavax (66.7%) as compared to Shringrix (33.3%). For those not vaccinated (81.6%), "Other" was the most chosen option (37.5%) with the reasons subsequently specified as cost, concern over interaction with treatment and waiting until age ≥65 years. In terms of pneumococcal vaccination, 36.7% were vaccinated, with the majority being vaccinated with Pneumovax-23 (63.9%) compared to Prevnar-13 (16.7%) or both (19.4%). Of the 63.3% of the participants who did not receive vaccination, the most cited reason was they did not know they should receive pneumococcal vaccination (48.4%).

CONCLUSIONS

Vaccination rates among Canadian patients with RA are suboptimal.

Hepatitis A vaccine immunogenicity in patients using immunosuppressive drugs: A systematic review and meta-analysis

INTRODUCTION

Inactivated hepatitis A (HepA) vaccines are very immunogenic in healthy individuals; however, it remains unclear how different immunosuppressive regimens affect HepA vaccine immunogenicity. Our objective was to summarise the current evidence on immunogenicity of HepA vaccination in patients using immunosuppressive drugs.

METHODS

We systematically searched the literature for studies on immunogenicity of inactivated HepA vaccines in adults using immunosuppressive drugs. Studies reporting seroconversion rates (SCR) 4-8 weeks after 1 and 2 doses of HepA vaccine in organ transplant recipients and patients with chronic inflammatory conditions were included in a meta-analysis.

RESULTS

We included 17 studies, comprising 1,332 individuals. In healthy controls (2 studies), SCRs were 90-94% after the first dose and 100% after the second dose. In organ transplant recipients, SCRs ranged from 0 to 67% after the first dose of vaccine and 0-97% after the second dose. In patients with chronic inflammatory conditions, SCRs ranged from 6% to 100% after the first dose and from 48 to 100% after the second dose of vaccine. Patients using a TNF-alpha inhibitor versus conventional immune-modulators (e.g. methotrexate, azathioprine, corticosteroids) were more likely to seroconvert after the first dose of vaccine (OR12.1 [2.14-68.2]) but not after the second dose of vaccine (OR 0.78 [0.21-2.92]) in a meta-analysis.

CONCLUSION

Studies evaluating HepA vaccine immunogenicity in immunosuppressive agents are heterogeneous. Overall, there is an impaired immune response following HepA vaccination in patients using immunosuppressive drugs, especially after only one dose of vaccine and in organ transplant recipients. HepA vaccination should therefore be considered before immunosuppressive therapy. Future research should focus on alternative vaccination regimens and long-term immunogenicity.

PROSPERO ID

CRD42018102607.

Suboptimal Immunization Coverage among Canadian Rheumatology Patients in Routine Clinical Care

OBJECTIVE

To assess vaccination coverage and predictors of vaccination among a Canadian population of rheumatology patients in routine clinical care.

METHODS

In this cross-sectional study, consecutive adult patients presenting to a tertiary rheumatology clinic at the McGill University Health Center between May and September 2015 were asked to fill a survey on vaccination. Patients self-identified as having rheumatoid arthritis (RA), systemic autoimmune rheumatic diseases (SARD), spondyloarthropathies (SpA), or other diseases (OD). Multivariate logistical regression analyses were performed to evaluate patient and physician factors associated with various vaccinations [for influenza, pneumococcus, and hepatitis B virus (HBV)]. Published Quebec general population influenza and pneumococcal vaccination rates in those aged ≥ 65 years were used as comparative baseline rates.

RESULTS

Three hundred fifty-two patients were included in the analysis (RA: 136, SARD: 113, SpA: 47, OD: 56). Vaccination rates were reported as follows: (1) influenza: RA 48.5%, SARD 42.0%, SpA 31.9%, OD 88.9%, Quebec general population 58.5%; (2) pneumococcal: RA 42.0%, SARD 37.8%, SpA 29.7%, OD 33.3%, Quebec general population 53.2%; (3) HBV: RA 33.6%, SARD 55.6%, SpA 73.5%, OD 36.8%; and (4) herpes zoster: RA 5.6%, SARD 28.6%, SpA 25.0%, OD 16.7%. Physician recommendation was the strongest independent predictor of vaccination across all vaccine types (influenza: OR 8.56, 95% CI 2.80-26.2, p < 0.001; pneumococcal: OR 314, 95% CI 73.0-1353, p < 0.001; HBV: OR 12.8, 95% CI 5.27-31.1, p < 0.001). Disease group, disease duration, comorbidities, treatment type, and being followed by a primary care physician were not significantly associated with vaccination.

CONCLUSION

There is suboptimal immunization coverage among ambulatory rheumatology patients. An important role for patient and physician education is highlighted in our study, especially because physician recommendation of vaccination was strongly predictive of vaccine uptake.

Vaccination Guidelines for Patients with Immune-mediated Disorders Taking Immunosuppressive Therapies: Executive Summary

The use of immunosuppressive therapies for immune-mediated disease is associated with an elevated risk of infections and related comorbidities. While many infectious diseases can generally be prevented by vaccines, immunization rates in this specific patient population remain suboptimal, due in part to uncertainty about their efficacy or safety under these clinical situations. To address this concern, a multidisciplinary group of Canadian physicians with expertise in dermatology, gastroenterology, infectious diseases, and rheumatology developed evidence-based clinical guidelines on vaccinations featuring 13 statements that are aimed at reducing the risk of preventable infections in individuals exposed to immunosuppressive and immunomodulatory agents.

Vaccination Guidelines for Patients with Immune-Mediated Disorders on Immunosuppressive Therapies-Executive Summary

The use of immunosuppressive therapies for immune-mediated disease (IMD) is associated with an elevated risk of infections and related comorbidities. While many infectious diseases can generally be prevented by vaccines, immunization rates in this specific patient population remain suboptimal, due in part to uncertainty about their efficacy or safety under these clinical situations. To address this concern, a multidisciplinary group of Canadian physicians with expertise in dermatology, gastroenterology, infectious diseases and rheumatology developed evidence-based clinical guidelines on vaccinations featuring 13 statements that are aimed at reducing the risk of preventable infections in individuals exposed to immunosuppressive agents.

Vaccination Guidelines for Patients With Immune-Mediated Disorders on Immunosuppressive Therapies

BACKGROUND:

Patients with immune-mediated diseases on immunosuppressive therapies have more infectious episodes than healthy individuals, yet vaccination practices by physicians for this patient population remain suboptimal.

OBJECTIVES:

To evaluate the safety and efficacy of vaccines in individuals exposed to immunosuppressive therapies and provide evidence-based clinical practice recommendations.

METHODS:

A literature search for vaccination safety and efficacy in patients on immunosuppressive therapies (2009-2017) was conducted. Results were assessed using the Grading of Recommendation, Assessment, Development, and Evaluation system.

RESULTS:

Several immunosuppressive therapies attenuate vaccine response. Thus, vaccines should be administered before treatment whenever feasible. Inactivated vaccines can be administered without treatment discontinuation. Similarly, evidence suggests that the live zoster vaccine is safe and effective while on select immunosuppressive therapy, although use of the subunit vaccine is preferred. Caution regarding other live vaccines is warranted. Drug pharmacokinetics, duration of vaccine-induced viremia, and immune response kinetics should be considered to determine appropriate timing of vaccination and treatment (re)initiation. Infants exposed to immunosuppressive therapies through breastmilk can usually be immunized according to local guidelines. Intrauterine exposure to immunosuppressive agents is not a contraindication for inactivated vaccines. Live attenuated vaccines scheduled for infants and children ⩾12 months of age, including measles, mumps, rubella, and varicella, can be safely administered as sufficient time has elapsed for drug clearance.

CONCLUSIONS:

Immunosuppressive agents may attenuate vaccine responses, but protective benefit is generally maintained. While these recommendations are evidence based, they do not replace clinical judgment, and decisions regarding vaccination must carefully assess the risks, benefits, and circumstances of individual patients.

Factors associated with influenza and pneumococcal vaccine uptake among rheumatoid arthritis patients in Denmark invited to participate in a pneumococcal vaccine trial (Immunovax_RA)

OBJECTIVE

This study investigates predictors of influenza and pneumococcal vaccine coverage among rheumatoid arthritis (RA) patients, and explores possible differences according to type of RA therapy.

METHOD

RA patients from two clinics in the region of Southern Denmark were informed about the survey during scheduled follow-up visits. The questionnaire included questions concerning previous influenza and pneumococcal vaccine uptake, attitudes about vaccination, and socio-demographic factors. Factors associated with recalled vaccine uptake were assessed by multivariate logistic regression.

RESULTS

A total of 192 RA patients completed the survey, 134 (70%) of whom were women and 90 (47%) were aged ≥ 65 years. Sixty-seven patients (35%) received conventional disease-modifying anti-rheumatic drugs (cDMARDs) and 125 (65%) combination therapy with biological disease-modifying anti-rheumatic drugs (bDMARDs). Self-reported uptake of vaccination against seasonal influenza ever was 59% overall; 57% among patients receiving cDMARDs and 61% in patients receiving bDMARDs. Self-reported vaccine uptake against pneumococcal diseases was only 6% overall. Older age, educational level, and information and recommendation by a specialist or general physician were positively associated with influenza vaccine uptake, while there was no significant difference in vaccine uptake according to RA treatment type. Reasons for not being vaccinated included fear of adverse effects, lack of information and recommendation, and perception of good health.

CONCLUSION

We observed a low prevalence of influenza and in particular of pneumococcal vaccinations among RA patients receiving immunosuppressive drugs, with no difference in coverage according to type of RA therapy. More population-specific evidence to support recommendations is required to increase awareness among patients and physicians.