Bioelectronic implant delivering interferon-β1a cost effective for RRMSA novel bioelectronic cell-based implant delivering controlled-release interferon-β1a [Optoferon; Optogenerapy] may be cost effective in patients with relapse-remitting multiple sclerosis (RRMS) in the Netherlands, according to findings of a study published in PharmacoEconomics.A Markov model was used to evaluate the potential cost effectiveness of Optoferon compared with injectable interferon-β1a [Avonex; Biogen] in a hypothetical cohort of 1000 patients 35 years of age with early RRMS and mild disability. Cost effectiveness was assessed from a Netherlands societal perspective over a 9-year time horizon. It was assumed that the Optoferon device was implanted in a daycare setting, and replaced every 3 years.Optoferon was estimated to achieve an incremental gain of 0.45 QALYs at a cost saving of €26 966 * compared with Avonex, primarily due to acquisition costs being 2.5 times lower. It was therefore dominant (more effective and less costly).The incremental cost-effectiveness ratio was sensitive to annual acquisition costs of Avonex, the annual withdrawal rate of Avonex and Optoferon, and disability progression with Avonex. The cost-effectiveness plane found that Optoferon had 99.6% probability of being cost effective at a willingness-to-pay threshold of €50 000 per QALY gained."Optoferon may be a cost-effective solution and has the potential to become a new mode of treatment administration for patients with MS," said the authors. "It is important to determine the added value of the product to the patient and the market, therefore trial data and stakeholder preferences are needed," they commented.