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Fylrevy / estetrol for in Hormone Replacement Therapy in Postmenopausal Women

As of May 2026, MARA’s assessment finds FYLREVY / Estetrol’s reimbursement risk concentrated in cost effectiveness, with evidence quality and robustness a strength; the current MARA Rating and full rationale are available in the report.

The assessment also weighs resource use and cost implications: what the drug adds to, or removes from, the wider bill beyond its own price — administration, monitoring, hospital time. The strength recorded in evidence quality and robustness carries weight because that domain asks how solid the underlying evidence is on its own terms — trial design, size and endpoints — before any question of price is reached.

Gynecology

What payers will ask

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

The evidence indicates comparable efficacy to existing options, as the phase 3 trials demonstrated significant reductions in vasomotor symptoms compared to placebo. However, there is no head-to-head comparison against active standard-of-care HRT, which limits the ability to claim superiority. The lack of long-term efficacy data further supports a B++ rating.

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

There is no public cost-utility analysis or ICER available for estetrol, and the absence of any economic model or cost data makes it impossible to assess cost-effectiveness. This lack of economic evidence leads to a C rating.

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

While there are some positive signals regarding HRQoL improvements using menopause-specific instruments, the absence of generic utility measures like EQ-5D limits the economic applicability of these findings. The evidence is supportive but not robust enough to demonstrate significant HRQoL gains.

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

The safety profile shows a high incidence of treatment-emergent adverse events, but most were mild or moderate. Serious adverse events were low, and the EMA has provided a risk management plan to address long-term safety concerns, particularly regarding endometrial safety. This balance of evidence supports an A rating.

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

The phase 3 trials used placebo as a comparator, which is acceptable for regulatory purposes but does not align with real-world standard of care where active HRT is preferred. This limitation in comparator choice leads to a B+ rating.

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

The trial population is relevant, including postmenopausal women aged 40 to 65 with significant symptoms. However, the exclusion of older women and those with comorbidities raises some concerns about generalizability, justifying an A rating.

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

Estetrol can be integrated into existing HRT pathways without significant changes, as it is an oral medication that fits within standard prescribing practices. Minor adjustments may be needed for monitoring, supporting an A+ rating.

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

There is insufficient evidence regarding the resource implications of adopting estetrol, with no public cost data or economic models available. This lack of information leads to a C rating.

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

The evidence is based on two pivotal phase 3 trials, which are robust in design. However, the reliance on placebo comparators and the absence of long-term data introduce some limitations, justifying an A+ rating.

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

There are significant uncertainties regarding long-term safety and effectiveness, particularly in older populations. While the treatment addresses a relevant unmet need, the uncertainties surrounding its broader impacts lead to a B+ rating.

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