Primary Risk Drivers
Below is a snapshot of domains that materially influence the MARA Rating.
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.
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.
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.
Supporting Domains
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.
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.
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.
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.
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.
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.
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.
