Abstract
Objectives: Rheumatoid arthritis (RA) is a prevalent and disabling disease that is the source of significant direct and indirect costs. The current recommended therapeutic strategy is based on the rapid introduction of therapy with conventional Disease-Modifying Anti-Rheumatic Drugs (DMARDs) combined with regular disease monitoring by the rheumatologist. The onerous nature of such intense monitoring has motivated the development of new, less demanding strategies such as telemedicine. This study aimed to estimate the cost-effectiveness of the connected monitoring of RA patients initiating a new DMARD therapy versus conventional monitoring.Methods: An economic evaluation based on a randomized controlled trial of 89 patients was conducted. The patients in the intervention group (n=45) were monitored using a connected monitoring interface on a smartphone, while patients in the control group (n=44) were conventionally monitored. Health outcomes were measured as the gain in quality-adjusted life-years (QALYs), assessed using the EuroQol-5D questionnaire. Resource use and health outcomes were collected alongside the trial and at the six-month follow-up using application data and the related clinical case manager time, visits, hospitalisations, and transport records. These outcomes were valued using externally collected data on unit costs and QALY weights.Results: Compared to conventionally monitored patients, patients receiving connected monitoring had a slightly greater but not significant gain in the average QALY of 0.07. The economic analysis found that connected monitoring resulted in a significant cost reduction of 72€ (2927€ vs. 2999€, P<0.01). The incremental cost-utility ratio of the intervention was equal to -1,029€ per QALY (95% CI: -32,033; +24,625) with a 97.8% chance of being cost-effective at a threshold of 30,000€ per QALY gained.Conclusion: Implementing EULAR recommendations for RA patients initiating a DMARD treatment using connected monitoring is more efficient and less expensive than conventional care.