Clinical Trial of TCM Collaborative Care Model in Axial Spondyloarthritis

A Pragmatic Randomized Controlled Trial of a Novel TCM Physician-involved Collaborative Care Model in the Management of Patients With Axial Spondyloarthritis in Singapore (AcuSpA)

A pragmatic, prospective, randomized controlled trial will be conducted in patients with axial spondyloarthritis who are NSAID inadequate responders. Patients will be randomized in a 1:1 ratio to either receive standard rheumatological care or a Traditional Chinese Medicine physician involved collaborative model of care (i.e. NSAIDs with acupuncture). Primary end-point was spinal pain score at week 6 with secondary end-points being evaluated week 24. Through this study, we hope to assess a novel model of care in AxSpA and be used as a reference to improve the management of other chronic diseases in Singapore.

The objective of this study is to determine the clinical effectiveness, safety and cost-effectiveness of a new model of care in the management of Spondyloarthritis (AxSpA) using a pragmatic trial approach. In this study, we define TCM physician involved collaborative model of care (TCMCMC) as TCM physician delivered acupuncture as well as TCM physician's history taking, physical examination, non-pharmacological advice and communications with rheumatologists in addition to the usual rheumatological care. The TCMCMC involves TCM physicians diagnosing patients based on TCM clinical syndromes and prescribing standardised acupuncture treatment. The patient population will still receive their standard of care (drug therapy and physiotherapy) as background therapy. The proposed study will not be investigating any therapeutic or medicinal products (drugs).

Our primary hypothesis is that novel TCMCMC in patients with AxSpA will result in better pain control as compared the usual rheumatological care. Secondary hypothesis is that TCMCMC will have greater improvements in other clinical, quality of life, and economic outcomes as compared with those under the usual rheumatological care.

Inclusion Criteria:

• 21 years of age or older
• Have AxSpA, diagnosed according to the 2009 Assessment of Spondyloarthritis International Society (ASAS) criteria
• Have active disease based on Bath AS Disease Activity Index (BASDAI) score ≥4 on a 11-point Numerical Rating Scale (NRS) and spinal pain score ≥4 on a 11-point NRS
• Has failed 2 sequential NSAIDs (including COX-2 inhibitor) at maximal tolerated doses for ≥ 4 weeks
• No biologic therapy (i.e tumour necrosis factor blocker or anti-interleukin 17) within the past three months
• Patient who is on current treatment with concomitant methotrexate (MTX) or sulfasalazine (SSZ) at study entry must be on the drug for ≥12 weeks and at stable dose for ≥4 weeks prior to randomisation. Patients who are on non-biologic disease-modifying antirheumatic drugs (DMARDs) other than methotrexate or sulfasalazine must discontinue the DMARD 4 weeks prior to randomisation, except for leflunomide, which has to be discontinued for 8 weeks prior to randomization unless a cholestyramine washout has been performed. Patients taking systemic corticosteroids have to be on stable dose of ≤ 10mg/day prednisolone or equivalent for at least two weeks before randomisation

Exclusion Criteria:

• Pregnant or breastfeeding women
• On anti-platelet agents (i.e. aspirin, clopidogrel, dipyridamole, etc) and anti-coagulants (i.e. warfarin, enoxaparin, rivaroxaban, dabigatran, etc)
• Have bleeding disorders
• Have blood-borne communicable diseases (e.g. hepatitis B, hepatitis C, human immunodeficiency virus, etc).