1.Recommendations for enhanced primary series (third dose) COVID-19 vaccination for people with rheumatic diseases: chapter of Rheumatologists, College of Physicians, Singapore.
Chuanhui XU ; Manjari LAHIRI ; Amelia SANTOSA ; Li-Ching CHEW ; Stanley ANGKODJOJO ; Melonie SRIRANGANATHAN ; Warren FONG ; Thaschawee ARKACHAISRI ; Ernest SURESH ; Kok Ooi KONG ; Aisha LATEEF ; Tau Hong LEE ; Keng Hong LEONG ; Andrea LOW ; Teck Choon TAN ; Ying-Ying LEUNG
Singapore medical journal 2025;66(10):532-539
INTRODUCTION:
This review aims to provide evidence-based recommendations for an enhanced primary series (third dose) coronavirus disease 2019 (COVID-19) vaccination in people with rheumatic diseases (PRDs) in the local and regional context.
METHODS:
Literature reviews were performed regarding the necessity, efficacy, safety and strategies for enhanced primary series COVID-19 vaccination in PRDs. Recommendations were developed based on evidence according to the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology. Evidence was synthesised by eight working group members, and the consensus was achieved by a Delphi method with nine members of an expert task force panel.
RESULTS:
Two graded recommendations and one ungraded position statement were developed. PRDs have impaired immunogenicity from the COVID-19 vaccine and are at an increased risk of postvaccine breakthrough severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and poor clinical outcomes, compared to the general population. We strongly recommend that PRDs on immunomodulatory drugs be offered a third dose of the messenger RNA (mRNA) vaccine as part of an enhanced primary series, after the standard two-dose regimen. We conditionally recommend that the third dose of mRNA vaccine against SARS-CoV-2 be given at least 4 weeks after the second dose or as soon as possible thereafter. There is insufficient data to inform whether the third mRNA vaccine should be homologous or heterologous in PRDs.
CONCLUSION
These recommendations that were developed through evidence synthesis and formal consensus process provide guidance for an enhanced primary series COVID-19 vaccination in PRDs.
Humans
;
COVID-19/prevention & control*
;
COVID-19 Vaccines/administration & dosage*
;
Rheumatic Diseases/immunology*
;
Singapore
;
SARS-CoV-2
;
Vaccination/methods*
;
Delphi Technique
;
Immunization, Secondary
2.An elderly couple with COVID-19 pneumonia treated in Singapore: contrasting clinical course and management.
Sin Yew WONG ; Keng Hong LEONG ; Kheng Siang NG ; Seng Hoe TAN ; Pau Lin Constance LO ; Kenneth CHAN
Singapore medical journal 2020;61(7):392-394
Aged
;
Aged, 80 and over
;
Betacoronavirus
;
genetics
;
Coronavirus Infections
;
epidemiology
;
therapy
;
DNA, Viral
;
analysis
;
Disease Management
;
Female
;
Humans
;
Male
;
Pandemics
;
Pneumonia, Viral
;
epidemiology
;
therapy
;
Singapore
3.COX2 Inhibitors as Anti-Inflammatory Agents
The Singapore Family Physician 2017;43(1):19-20
Pain and inflammation are common problems in clinical practice. Anti-inflammatory drugs are one of the most often prescribed groups of medications. The issue is that they carry gastrointestinal (GI) and cardiovascular (CV) risks. Therefore, anti-inflammatory drugs should be used mostly in the setting of inflammation. Non inflammatory pain can be managed with other groups of drugs and therapies. For patients who do need anti-inflammatory agents, the choice is dependent on the GI and CV risk profile of the patient. Where possible, efforts should be directed to the underlying cause of the pain and inflammation.
5.Singapore Chapter of Rheumatologists Consensus Statement on the Eligibility for Government Subsidy of Biologic Disease Modifying Antirheumatic Agents for Treatment of Rheumatoid Arthritis (RA).
Gim Gee TENG ; Peter P CHEUNG ; Manjari LAHIRI ; Jane A CLAYTON ; Li Ching CHEW ; Ee Tzun KOH ; Wei Howe KOH ; Tang Ching LAU ; Swee Cheng NG ; Bernard Y THONG ; Archana R VASUDEVAN ; Jon K C YOONG ; Keng Hong LEONG
Annals of the Academy of Medicine, Singapore 2014;43(8):400-411
INTRODUCTIONUp to 30% of patients with rheumatoid arthritis (RA) respond inadequately to conventional non-biologic disease modifying antirheumatic drugs (nbDMARDs), and may benefit from therapy with biologic DMARDs (bDMARDs). However, the high cost of bDMARDs limits their widespread use. The Chapter of Rheumatologists, College of Physicians, Academy of Medicine, Singapore aims to define clinical eligibility for government-assisted funding of bDMARDs for local RA patients.
MATERIALS AND METHODSEvidence synthesis was performed by reviewing 7 published guidelines on use of biologics for RA. Using the modified RAND/UCLA Appropriateness Method (RAM), rheumatologists rated indications for therapies for different clinical scenarios. Points reflecting the output from the formal group consensus were used to formulate the practice recommendations.
RESULTSTen recommendations including diagnosis of RA, choice of disease activity measure, initiation and continuation of bDMARD and option of first and second-line therapies were formulated. The panellists agreed that a bDMARD is indicated if a patient has (1) active RA with a Disease Activity Score in 28 joints (DAS28) score of ≥3.2, (2) a minimum of 6 swollen and tender joints, and (3) has failed a minimum of 2 nbDMARD combinations of adequate dose regimen for at least 3 months each. To qualify for continued biologic therapy, a patient must have (1) documentation of DAS28 every 3 months and (2) at least a European League Against Rheumatism (EULAR) moderate response by 6 months after commencement of therapy.
CONCLUSIONThe recommendations developed by a formal group consensus method may be useful for clinical practice and guiding funding decisions by relevant authorities in making bDMARDs usage accessible and equitable to eligible patients in Singapore.
Antirheumatic Agents ; economics ; therapeutic use ; Arthritis, Rheumatoid ; drug therapy ; Financing, Government ; Humans ; Practice Guidelines as Topic ; Singapore
6.The use of biological agents in the treatment of rheumatoid arthritis.
Peng Thim FAN ; Keng Hong LEONG
Annals of the Academy of Medicine, Singapore 2007;36(2):128-134
Rheumatoid arthritis is a common and potentially devastating condition which did not have good treatment options until recently. Pharmacological treatment should not just comprise antiinflammatory agents and corticosteroids. The current therapeutic approach is to start a disease modifying agent early in the illness to prevent eventual joint damage. Older disease modifying anti-rheumatic drugs (DMARDs) include methotrexate, sulphasalazine and hydroxychloroquine. Newer ones such as leflunomide and cyclosporine are also used. A recent advance in the management of rheumatoid arthritis is the use of biological agents which block certain key molecules involved in the pathogenesis of the illness. They include tumour necrosis factor (TNF)- blocking agents such as infliximab, etanercept and adalimumab, the anti-CD 20 agent rituximab and CTLA-4 Ig abatacept. Other agents which are in development include anti-IL6 tocilizumab, anti-CD22 and anti-lymphostat B. In this review, the efficacy and side effects of these agents, their impact on current clinical practice and future trends are discussed.
Abatacept
;
Antibodies, Monoclonal
;
therapeutic use
;
Antibodies, Monoclonal, Humanized
;
Antirheumatic Agents
;
therapeutic use
;
Arthritis, Rheumatoid
;
immunology
;
therapy
;
Drug Therapy, Combination
;
Humans
;
Immunoconjugates
;
therapeutic use
;
Immunologic Factors
;
adverse effects
;
therapeutic use
;
Immunosuppressive Agents
;
therapeutic use
;
Methotrexate
;
therapeutic use
;
Remission Induction
;
Tumor Necrosis Factor-alpha
;
antagonists & inhibitors


Result Analysis
Print
Save
E-mail