Outputs (26)

Uptake and safety of pneumococcal vaccination in adults with immune mediated inflammatory diseases: a UK wide observational study (2024)
Journal Article
Nakafero, G., Grainge, M. J., Card, T., Mallen, C. D., Nguyen Van-Tam, J. S., Abhishek, A., & . (2024). Uptake and safety of pneumococcal vaccination in adults with immune mediated inflammatory diseases: a UK wide observational study. Rheumatology, Article keae160. https://doi.org/10.1093/rheumatology/keae160

Objective The uptake and safety of pneumococcal vaccination in people with immune mediated inflammatory diseases (IMIDs) is poorly understood. We investigated the UK wide pneumococcal vaccine uptake in adults with IMIDs and explored the association b... Read More about Uptake and safety of pneumococcal vaccination in adults with immune mediated inflammatory diseases: a UK wide observational study.

Risk-stratified monitoring for sulfasalazine toxicity: prognostic model development and validation (2024)
Journal Article
Abhishek, A., Grainge, M., Card, T., Williams, H. C., Taal, M. W., Aithal, G. P., …Riley, R. (2024). Risk-stratified monitoring for sulfasalazine toxicity: prognostic model development and validation. RMD Open, 10(1), Article e003980. https://doi.org/10.1136/rmdopen-2023-003980

Background Sulfasalazine-induced cytopenia, nephrotoxicity and hepatotoxicity is uncommon during long-term treatment. Some guidelines recommend 3 monthly monitoring blood tests indefinitely during long-term treatment while others recommend stopping m... Read More about Risk-stratified monitoring for sulfasalazine toxicity: prognostic model development and validation.

Risk-stratified monitoring for sulfasalazine toxicity: prognostic model development and validation (2023)
Working Paper
Abhishek, A., Grainge, M. J., Card, T., Williams, H. C., Taal, M. W., Aithal, G. P., …Riley, R. D. Risk-stratified monitoring for sulfasalazine toxicity: prognostic model development and validation

Background Sulfasalazine induced cytopenia, nephrotoxicity, and hepatotoxicity is uncommon during long-term treatment. Some guidelines recommend three monthly monitoring blood-tests indefinitely while others recommend stopping monitoring after one ye... Read More about Risk-stratified monitoring for sulfasalazine toxicity: prognostic model development and validation.

Discontinuation of anti-TNF-alpha treatment due to blood test abnormalities and cost-effectiveness of alternate blood monitoring strategies (2023)
Journal Article
Abhishek, A., Stevenson, M. D., Nakafero, G., Grainge, M. J., Evans, I., Alabas, O., …Williams, H. C. (in press). Discontinuation of anti-TNF-alpha treatment due to blood test abnormalities and cost-effectiveness of alternate blood monitoring strategies. British Journal of Dermatology, Article ljad430. https://doi.org/10.1093/bjd/ljad430

Background: There is no evidence base supporting the use of six-monthly monitoring blood tests for the early detection of liver, blood, and renal toxicity during established anti-TNF-alpha treatment. Objectives: To evaluate the incidence... Read More about Discontinuation of anti-TNF-alpha treatment due to blood test abnormalities and cost-effectiveness of alternate blood monitoring strategies.

Risk-stratified monitoring for thiopurine toxicity in immune-mediated inflammatory diseases: prognostic model development, validation, and, health economic evaluation (2023)
Journal Article
Nakafero, G., Card, T., Grainge, M. J., Williams, H. C., Taal, M. W., Aithal, G. P., …Abhishek, A. (2023). Risk-stratified monitoring for thiopurine toxicity in immune-mediated inflammatory diseases: prognostic model development, validation, and, health economic evaluation. eClinicalMedicine, 64, Article 102213. https://doi.org/10.1016/j.eclinm.2023.102213

Background: Patients established on thiopurines (e.g., azathioprine) are recommended to undergo three-monthly blood tests for the early detection of blood, liver, or kidney toxicity. These side-effects are uncommon during long-term treatment. We deve... Read More about Risk-stratified monitoring for thiopurine toxicity in immune-mediated inflammatory diseases: prognostic model development, validation, and, health economic evaluation.

Risk stratified monitoring for methotrexate toxicity in immune mediated inflammatory diseases: prognostic model development and validation using primary care data from the UK (2023)
Journal Article
Nakafero, G., Grainge, M. J., Williams, H. C., Card, T., Taal, M. W., Aithal, G. P., …Abhishek, A. (2023). Risk stratified monitoring for methotrexate toxicity in immune mediated inflammatory diseases: prognostic model development and validation using primary care data from the UK. BMJ, 381, Article e074678. https://doi.org/10.1136/bmj-2022-074678

OBJECTIVE: To develop and validate a prognostic model to inform risk stratified decisions on frequency of monitoring blood tests during long term methotrexate treatment. DESIGN: Retrospective cohort study. SETTING: Electronic health records within th... Read More about Risk stratified monitoring for methotrexate toxicity in immune mediated inflammatory diseases: prognostic model development and validation using primary care data from the UK.

Is Vaccination Against COVID-19 Associated With Inflammatory Bowel Disease Flare? Self-Controlled Case Series Analysis Using the UK CPRD (2023)
Journal Article
Card, T. R., Nakafero, G., Grainge, M. J., Mallen, C. D., Van-Tam, J. S. N., Williams, H. C., & Abhishek, A. (2023). Is Vaccination Against COVID-19 Associated With Inflammatory Bowel Disease Flare? Self-Controlled Case Series Analysis Using the UK CPRD. American Journal of Gastroenterology, 118(8), 1388-1394. https://doi.org/10.14309/ajg.0000000000002205

INTRODUCTION: To investigate the association between vaccination against coronavirus disease 2019 (COVID-19) and inflammatory bowel disease (IBD) flare. METHODS: Patients with IBD vaccinated against COVID-19 who consulted for disease flare be... Read More about Is Vaccination Against COVID-19 Associated With Inflammatory Bowel Disease Flare? Self-Controlled Case Series Analysis Using the UK CPRD.

The impact of repeated vaccination on relative influenza vaccine effectiveness among vaccinated adults in the United Kingdom (2022)
Journal Article
Lim, W. W., Cowling, B. J., Nakafero, G., Feng, S., Nguyen-Van-Tam, J. S., & Bolt, H. (2022). The impact of repeated vaccination on relative influenza vaccine effectiveness among vaccinated adults in the United Kingdom. Epidemiology and Infection, 150, Article E198. https://doi.org/10.1017/S0950268822001753

Annual seasonal influenza vaccination is recommended for individuals at high risk of developing post-infection complications in many locations. However, reduced vaccine immunogenicity and effectiveness have been observed among repeat vaccinees in som... Read More about The impact of repeated vaccination on relative influenza vaccine effectiveness among vaccinated adults in the United Kingdom.

Is vaccination against COVID-19 associated with psoriasis or eczema flare? Self-controlled case series analysis using data from the Clinical Practice Research Datalink (Aurum) (2022)
Journal Article
Adams, L., Nakafero, G., Grainge, M. J., Card, T., Mallen, C. D., Van-Tam, J. S., …Abhishek, A. (2022). Is vaccination against COVID-19 associated with psoriasis or eczema flare? Self-controlled case series analysis using data from the Clinical Practice Research Datalink (Aurum). British Journal of Dermatology, 188(2), 297-299. https://doi.org/10.1093/bjd/ljac061

Is vaccination against COVID-19 associated with autoimmune rheumatic disease flare? A self-controlled case series analysis (2022)
Journal Article
Nakafero, G., Grainge, M. J., Card, T., Mallen, C. D., Nguyen Van-Tam, J. S., Williams, H. C., & Abhishek, A. (2023). Is vaccination against COVID-19 associated with autoimmune rheumatic disease flare? A self-controlled case series analysis. Rheumatology, 62(4), 1445-1450. https://doi.org/10.1093/rheumatology/keac484

OBJECTIVES: To investigate the association between vaccination against coronavirus disease 2019 (COVID-19) and autoimmune rheumatic disease (AIRD) flare. MATERIAL AND METHODS: Patients with AIRDs vaccinated against COVID-19 who consulted for dise... Read More about Is vaccination against COVID-19 associated with autoimmune rheumatic disease flare? A self-controlled case series analysis.

Association between Gout Flare and Subsequent Cardiovascular Events among Patients with Gout (2022)
Journal Article
Cipolletta, E., Tata, L. J., Nakafero, G., Avery, A. J., Mamas, M. A., & Abhishek, A. (2022). Association between Gout Flare and Subsequent Cardiovascular Events among Patients with Gout. Journal of the American Medical Association, 328(5), 440-450. https://doi.org/10.1001/jama.2022.11390

Importance: Gout is associated with cardiovascular diseases. The temporal association between gout flares and cardiovascular events has not been investigated. Objective: To investigate whether there is a transient increase in risk of cardiovascular e... Read More about Association between Gout Flare and Subsequent Cardiovascular Events among Patients with Gout.

Serum urate outcomes of treat-to-target urate lowering treatment: results of a nationwide cohort study from 1997 to the COVID-19 pandemic using data from the Clinical Practice Research Datalink (2022)
Journal Article
Abhishek, A., Cipolletta, E., Nakafero, G., Avery, A. J., Mamas, M., & Tata, L. J. (2022). Serum urate outcomes of treat-to-target urate lowering treatment: results of a nationwide cohort study from 1997 to the COVID-19 pandemic using data from the Clinical Practice Research Datalink. Annals of the Rheumatic Diseases, 81(12), https://doi.org/10.1136/ard-2022-222668

Incidence and pattern of mycophenolate discontinuation associated with abnormal monitoring blood-test results: cohort study using data from the Clinical Practice Research Datalink Aurum (2022)
Journal Article
Nakafero, G., Grainge, M. J., Card, T., Mallen, C. D., Riley, R., Van Der Windt, D., …Abhishek, A. (2022). Incidence and pattern of mycophenolate discontinuation associated with abnormal monitoring blood-test results: cohort study using data from the Clinical Practice Research Datalink Aurum. Rheumatology Advances in Practice, 6(2), Article rkac046. https://doi.org/10.1093/rap/rkac046

Objective: The aim was to examine the incidence and pattern of MMF discontinuation associated with abnormal monitoring blood-test results. Methods: Data from people prescribed MMF for common inflammatory conditions in the Clinical Practice Research D... Read More about Incidence and pattern of mycophenolate discontinuation associated with abnormal monitoring blood-test results: cohort study using data from the Clinical Practice Research Datalink Aurum.

Feasibility of conducting a randomized, placebo-controlled study assessing whether omega-3 fatty acids prevent gout flares when starting urate-lowering treatment (2022)
Journal Article
Abhishek, A., Fuller, A., Nakafero, G., Zhang, W., Dumbleton, J., Hawkey, C., …Doherty, M. (2022). Feasibility of conducting a randomized, placebo-controlled study assessing whether omega-3 fatty acids prevent gout flares when starting urate-lowering treatment. Rheumatology Advances in Practice, 6(3), Article rkac086. https://doi.org/10.1093/rap/rkac086

Objective: The aim was to test the feasibility of a randomized controlled trial exploring whether omega-3 fatty acid supplementation limits gout flares during treat-to-target urate-lowering treatment (T2T-ULT). Methods: Adults with at least one gout... Read More about Feasibility of conducting a randomized, placebo-controlled study assessing whether omega-3 fatty acids prevent gout flares when starting urate-lowering treatment.

Development and validation of a prognostic model for leflunomide discontinuation with abnormal blood tests during long-term treatment: cohort study using data from the Clinical Practice Research Datalink Gold and Aurum (2021)
Journal Article
Nakafero, G., Grainge, M. J., Card, T., Taal, M. W., Aithal, G. P., Zhang, W., …Abhishek, A. (2022). Development and validation of a prognostic model for leflunomide discontinuation with abnormal blood tests during long-term treatment: cohort study using data from the Clinical Practice Research Datalink Gold and Aurum. Rheumatology, 61(7), 2783-2791. https://doi.org/10.1093/rheumatology/keab790

OBJECTIVE: To develop and validate a prognostic model for LEF discontinuation with abnormal blood test results. METHODS: Data from the Clinical Practice Research Datalink Gold and Aurum were used for model development and external validation, respect... Read More about Development and validation of a prognostic model for leflunomide discontinuation with abnormal blood tests during long-term treatment: cohort study using data from the Clinical Practice Research Datalink Gold and Aurum.

What is the incidence of methotrexate or leflunomide discontinuation related to cytopenia, liver enzyme elevation or kidney function decline? (2021)
Journal Article
Nakafero, G., Grainge, M. J., Card, T., Mallen, C. D., Zhang, W., Doherty, M., …Abhishek, A. (2021). What is the incidence of methotrexate or leflunomide discontinuation related to cytopenia, liver enzyme elevation or kidney function decline?. Rheumatology, 60(12), 5785-5794. https://doi.org/10.1093/rheumatology/keab254

Objectives: To examine incidence of treatment changes due to abnormal blood-test results and, to explore rates of treatment changes due to liver, kidney and haematological blood-test abnormalities in autoimmune rheumatic diseases (AIRD) treated with... Read More about What is the incidence of methotrexate or leflunomide discontinuation related to cytopenia, liver enzyme elevation or kidney function decline?.

?-blocker prescription is associated with lower cumulative risk of knee osteoarthritis and knee pain consultations in primary care: A propensity score-matched cohort study (2021)
Journal Article
Nakafero, G., Grainge, M. J., Valdes, A. M., Townsend, N., D. Mallen, C., Zhang, W., …Abhishek, A. (2021). β-blocker prescription is associated with lower cumulative risk of knee osteoarthritis and knee pain consultations in primary care: A propensity score-matched cohort study. Rheumatology, 60(12), 5686-5696. https://doi.org/10.1093/rheumatology/keab234

Objectives: To examine the association between ?-blocker prescription and first primary-care consultation for knee OA, hip OA, knee pain and hip pain. Methods: Data source: Clinical Practice Research Datalink. Participants aged ?40 years in receipt o... Read More about ?-blocker prescription is associated with lower cumulative risk of knee osteoarthritis and knee pain consultations in primary care: A propensity score-matched cohort study.

Association between serum urate, gout and comorbidities: a case–control study using data from the UK Biobank (2020)
Journal Article
Sandoval-Plata, G., Nakafero, G., Chakravorty, M., Morgan, K., & Abhishek, A. (2021). Association between serum urate, gout and comorbidities: a case–control study using data from the UK Biobank. Rheumatology, 60(7), 3243-3251. https://doi.org/10.1093/rheumatology/keaa773

Objectives To examine the association between comorbidities and serum urate (SU), gout and comorbidities, and to determine whether the association between gout and comorbidities is independent of SU. Methods We performed a case-control study using UK... Read More about Association between serum urate, gout and comorbidities: a case–control study using data from the UK Biobank.

Effectiveness of inactivated influenza vaccine in autoimmune rheumatic diseases treated with disease-modifying anti-rheumatic drugs (2020)
Journal Article
Mallen, C. D., Nakafero, G., Grainge, M. J., Myles, P. R., Zhang, W., Doherty, M., …Abhishek, A. (2020). Effectiveness of inactivated influenza vaccine in autoimmune rheumatic diseases treated with disease-modifying anti-rheumatic drugs. Rheumatology, 59(12), 3666–3675. https://doi.org/10.1093/rheumatology/keaa078

Objectives The effectiveness of inactivated influenza vaccine in people with autoimmune rheumatic disease (AIRDs) is not known. We investigated whether the influenza vaccine is effective in preventing respiratory morbidity, mortality and all-cause m... Read More about Effectiveness of inactivated influenza vaccine in autoimmune rheumatic diseases treated with disease-modifying anti-rheumatic drugs.

Do ?-adrenoreceptor blocking drugs associate with reduced risk of symptomatic osteoarthritis and total joint replacement in the general population?: A primary-care based prospective cohort study using the Clinical Practice Research Datalink (2019)
Journal Article
Nakafero, G., Grainge, M., Valdes, A., Townsend, N., Mallen, C., Zhang, W., …Abhishek, A. (2019). Do β-adrenoreceptor blocking drugs associate with reduced risk of symptomatic osteoarthritis and total joint replacement in the general population?: A primary-care based prospective cohort study using the Clinical Practice Research Datalink. BMJ Open, 9(8), Article e032050. https://doi.org/10.1136/bmjopen-2019-032050

© Author(s) (or their employer(s)) 2019. Introduction: To investigate if β-adrenoreceptor blocking drug (β-blocker) prescription reduces the risk of knee or hip osteoarthritis, total joint replacement and analgesic prescription. Setting: Primary care... Read More about Do ?-adrenoreceptor blocking drugs associate with reduced risk of symptomatic osteoarthritis and total joint replacement in the general population?: A primary-care based prospective cohort study using the Clinical Practice Research Datalink.

Association between inactivated influenza vaccine and primary care consultations for autoimmune rheumatic disease flares: a self-controlled case series study using data from the Clinical Practice Research Datalink (2019)
Journal Article
Nakafero, G., Grainge, M. J., Myles, P., Mallen, C. D., Zhang, W., Doherty, M., …Abhishek, A. (2019). Association between inactivated influenza vaccine and primary care consultations for autoimmune rheumatic disease flares: a self-controlled case series study using data from the Clinical Practice Research Datalink. Annals of the Rheumatic Diseases, 78(8), 1122-1126. https://doi.org/10.1136/annrheumdis-2019-215086

Objectives To examine the association between inactivated influenza vaccine (IIV) administration and primary care consultation for joint pain, rheumatoid arthritis (RA) flare, corticosteroid prescription, vasculitis, and unexplained fever in people w... Read More about Association between inactivated influenza vaccine and primary care consultations for autoimmune rheumatic disease flares: a self-controlled case series study using data from the Clinical Practice Research Datalink.

Implication of nurse intervention on engagement with urate-lowering drugs: a qualitative study of participants in a RCT of nurse led care (2018)
Journal Article
Latif, Z. P., Nakafero, G., Jenkins, W., Doherty, M., & Abhishek, A. (2019). Implication of nurse intervention on engagement with urate-lowering drugs: a qualitative study of participants in a RCT of nurse led care. Joint Bone Spine, 86(3), 357-362. https://doi.org/10.1016/j.jbspin.2018.10.008

Objectives To explore patient perception of the role of a nurse-led complex package of care in facilitating engagement with urate-lowering therapies (ULTs) in the management of gout. Methods Thirty people who had participated in a randomised control... Read More about Implication of nurse intervention on engagement with urate-lowering drugs: a qualitative study of participants in a RCT of nurse led care.

Predictors and temporal trend of flu vaccination in auto-immune rheumatic diseases in the UK: a nationwide prospective cohort study (2018)
Journal Article
Nakafero, G., Grainge, M. J., Myles, P. R., Mallen, C., Zhang, W., Doherty, M., …Abhishek, A. (2018). Predictors and temporal trend of flu vaccination in auto-immune rheumatic diseases in the UK: a nationwide prospective cohort study. Rheumatology, 57(10), 1726-1734. https://doi.org/10.1093/rheumatology/key156

Objectives: To [1] examine temporal trend in uptake of seasonal influenza vaccine (SIV) in the UK, [2] explore disease and demographic factors associated with vaccination. Methods: 32,751 people with auto-immune rheumatic diseases (AIRDs) prescribed... Read More about Predictors and temporal trend of flu vaccination in auto-immune rheumatic diseases in the UK: a nationwide prospective cohort study.

Rheumatoid arthritis and excess mortality: down but not out: a primary care cohort study using data from Clinical Practice Research Datalink (2018)
Journal Article
Abhishek, A., Nakafero, G., Kuo, C., Mallen, C., Zhang, W., Grainge, M. J., & Doherty, M. (2018). Rheumatoid arthritis and excess mortality: down but not out: a primary care cohort study using data from Clinical Practice Research Datalink. Rheumatology, 57(6), 977–981. https://doi.org/10.1093/rheumatology/key013

Objectives: To examine temporal trends in all-cause and cause-specific mortality in RA. Methods: Data from the Clinical Practice Research Datalink (CPRD) were used. Incident RA cases and four age, sex and general practice matched controls were id... Read More about Rheumatoid arthritis and excess mortality: down but not out: a primary care cohort study using data from Clinical Practice Research Datalink.

The association between benzodiazepines and influenza-like illness-related pneumonia and mortality: a survival analysis using UK Primary Care data (2016)
Journal Article
Nakafero, G., Sanders, R. D., Nguyen-Van-Tam, J. S., & Myles, P. R. (2016). The association between benzodiazepines and influenza-like illness-related pneumonia and mortality: a survival analysis using UK Primary Care data. Pharmacoepidemiology and Drug Safety, 25(11), 1263-1273. https://doi.org/10.1002/pds.4028

Purpose: Bacterial superinfections, including pneumonia, are frequent complications of influenza-like illness (ILI). Clinical and laboratory evidence suggests that benzodiazepines and Z-drugs may influence susceptibility to infections and mortality.... Read More about The association between benzodiazepines and influenza-like illness-related pneumonia and mortality: a survival analysis using UK Primary Care data.

Association between benzodiazepine use and exacerbations and mortality in patients with asthma: a matched case-control and survival analysis using the United Kingdom Clinical Practice Research Datalink (2015)
Journal Article
Nakafero, G., Sanders, R. D., Nguyen-Van-Tam, J. S., & Myles, P. R. (2015). Association between benzodiazepine use and exacerbations and mortality in patients with asthma: a matched case-control and survival analysis using the United Kingdom Clinical Practice Research Datalink. Pharmacoepidemiology and Drug Safety, 24(8), 793-802. https://doi.org/10.1002/pds.3799

Purpose: To investigate the association between the GABAergic drugs, benzodiazepines or zopiclone, and the occurrence of asthma exacerbations and subsequent mortality in a cohort of asthma patients. Methods: 105,747 patients without asthma exacerba... Read More about Association between benzodiazepine use and exacerbations and mortality in patients with asthma: a matched case-control and survival analysis using the United Kingdom Clinical Practice Research Datalink.