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Bimzelx / bimekizumab for treating axial spondyloarthritis

As of October 2023, MARA’s assessment finds Bimzelx / Bimekizumab’s reimbursement risk concentrated in comparator selection, with cost effectiveness a strength; the current MARA Rating and full rationale are available in the report.

The assessment also weighs care pathway integration: how the drug fits into the way care is organised today; a treatment that demands new infrastructure or displaces an established pathway faces extra scrutiny. The strength recorded in cost effectiveness carries weight because that domain asks whether the price asked stands in a defensible relationship to the benefit delivered — the core of most European reimbursement decisions.

Immunology

This rating sits within MARA’s Immunology coverage, alongside 29 other independently assessed treatments in the same area.

What payers will ask

Is the clinical benefit the kind payers reward? — Clinical effectiveness

Bimekizumab shows a clear clinical advantage over placebo, with evidence suggesting it is as effective as established treatments like secukinumab and ixekizumab based on indirect comparisons. However, the absence of direct head-to-head trials limits the strength of the evidence.

Does the economic case hold at the expected price? — Cost effectiveness

Bimekizumab is positioned as a cost-effective option compared to ixekizumab and secukinumab, with a lower cost than one comparator necessary for its recommendation. This suggests a favorable economic profile under NICE’s cost-comparison methods.

Is there quality-of-life evidence payers weigh? — Quality of life

While the document does not provide extensive HRQoL data, the treatment’s effectiveness in reducing disease activity (as measured by BASDAI and VAS) implies potential improvements in quality of life for patients with axial spondyloarthritis.

Does the safety profile hold up for payers? — Safety and Adverse Effects

The safety profile of bimekizumab is considered very good, with manageable adverse events. The document indicates that it is comparable to existing therapies, which suggests a favorable safety profile.

Was the drug compared against what payers expect? — Comparator Selection

While bimekizumab has been compared to placebo, the lack of direct comparisons with secukinumab and ixekizumab raises concerns about the robustness of the evidence. The indirect comparisons suggest efficacy but do not provide the ideal evidence.

Is the population defined the way payers need it? — Patient Population and Subgroups

The patient population for bimekizumab is well-defined, targeting adults with active ankylosing spondylitis and non-radiographic axial spondyloarthritis. The recommendations consider various patient needs, enhancing generalizability.

Does the drug fit how care is delivered and paid for? — Care Pathway Integration

Bimekizumab can be integrated into existing treatment pathways with minor adjustments, as it is recommended for patients who have not responded to conventional therapies. This suggests a manageable integration process.

Are the wider system costs understood? — Resource Use and Cost Implications

The document indicates that bimekizumab has a manageable budget impact, with a commercial arrangement in place to facilitate its use. This suggests that the resource implications are justifiable given the treatment’s benefits.

Would the evidence survive payer scrutiny? — Evidence Quality and Robustness

The evidence base includes clinical trial data demonstrating efficacy compared to placebo, though the reliance on indirect comparisons introduces some methodological concerns. Overall, the evidence is acceptable but not without limitations.

How exposed is the case to uncertainty? — Uncertainty, Sensitivity, and Broader Impacts

There is moderate uncertainty regarding the long-term outcomes and the indirect nature of some comparisons. However, the treatment addresses a significant unmet need in the patient population, which mitigates some concerns.

Be alerted when this rating changes:

Sample two-page MARA Rating report for the fictional drug Samplinib: the rating with its decision record, and the ten graded payer questions with the reasoning behind each
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