HHE Rheumatology 2019 | Page 21

tender joints, swollen joints, global pain, and a biomarker for inflammation (either erythrocyte sedimentation rate (ESR) or CRP). Definitions of remission or low disease activity vary according to the measure used. For example, with the DAS28, remission is a score of <2.6 and low disease activity is ≤3.2. The previous guideline did not recommend a specific target other than agreeing a target with the patient. The revised guideline now recommends that patients with active RA are treated with the aim of achieving a target of remission or low disease activity if remission cannot be achieved (treat-to-target). This is more challenging than the recommendation in 2009 and could have resource implications as patients might have more treatment and follow up appointments. The guideline also recommended that clinicians should consider making the target remission rather than low disease activity for people with an increased risk of radiological progression (that is, those with positive anti-CCP antibodies or erosions on X-ray at baseline assessment). blood tests for acute phase response or rheumatoid factor. The guideline recommends referral in any patient when: • The small joints of the hands or feet are affected • More than one joint is affected or • There has been a delay of three months or longer between onset of symptoms and seeking medical advice. Referral should be guided by clinical examination and should not be delayed by waiting for results of any investigations as they may be normal especially in early disease. When positive, anti-cyclic citrullinated peptide (CCP) antibodies and/or radiographic erosions at diagnosis in combination with a raised C-reactive protein (CRP) are indicators of a poor prognosis. It is recommended that CCP, CRP and X-rays are arranged at initial diagnosis in secondary care if they were not undertaken before referral. The guideline recommends that the rheumatologist should inform those with risk factors of a poor prognosis that they have an increased risk of radiological progression. This is in order to emphasise the importance of the patient monitoring their condition and seeking rapid access to specialist care if disease worsens or they have a flare. RA is a clinical diagnosis and patients with synovitis should be referred rapidly to a rheumatologist independent of any investigations Treat-to-target strategy Disease activity can be measured by various tools, such as the DAS28, which is based on a composite score from clinical assessment of the number of Pharmacological management Initial pharmacological management is led by specialists. Conventional synthetic disease- modifying anti-rheumatic drugs (csDMARDs) are differentiated from targeted synthetic (ts)DMARDs (such as Janus kinase inhibitors) and biologic (b) DMARDs (including inhibitors of cytokines such as tumour necrosis factor and interleukin-6), which were not within the scope of this guideline. The previous guideline recommended initial treatment with a combination of two or more csDMARDs including methotrexate. However, the evidence for this approach was re-evaluated and a meta-analysis did not find superiority for any individual drug. This is surprising to those who consider methotrexate to be superior although this is not supported by current data. Extensive literature review also did not find superiority for initial combination compared with a step up strategy. In contrast to the previous recommendation, the current guideline therefore recommends initiation with a single csDMARD (either sulfasalazine, methotrexate, or leflunomide) and sequentially adding further drugs in a step-up approach if the target is not met. Thereafter, if the patient remains with severe active disease (DAS>5.1) they would be eligible for a bDMARD. NICE at present do not have a recommendation for those who have not met the target of at least low disease activity and do not have severe active disease; this is currently under review because of the reduction in the cost of some drugs following the introduction of tsDMARDs and biosimilar bDMARDs. Once a patient has achieved and maintained their treatment target of remission or low disease activity for at least a year without glucocorticoids, the guideline recommends the rheumatologist should consider cautiously reducing drug doses or stopping drugs in a step-down strategy but to return promptly to the previous DMARD regimen if the treatment target is no longer met. Frequency of follow up What has proved challenging for some rheumatologists was the recommendation in the 2009 guideline to follow patients monthly until 21 HHE 2019 | hospitalhealthcare.com