Independent Market Access and Reimbursement Risk Assessment.

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Pembrolizumab / keytruda for treating advanced or recurrent endometrial cancer

As of June 2023, MARA’s assessment finds Pembrolizumab / Keytruda’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 safety and adverse effects: what harms arrive alongside the benefit, which payers set against the gains before funding a treatment. 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.

Oncology

This rating sits within MARA’s Oncology coverage, alongside 153 other independently assessed treatments in the same area.

What payers will ask

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

The evidence from the KEYNOTE-775 trial indicates that pembrolizumab plus lenvatinib significantly improves both progression-free survival (7.3 months vs. 3.8 months) and overall survival (18.7 months vs. 11.9 months) compared to doxorubicin or paclitaxel monotherapy. The hazard ratios (HR) of 0.56 and 0.65 demonstrate a clear clinical advantage, although the results are somewhat uncertain due to the use of non-standard treatments in the trial following non-platinum-based chemotherapy.

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

The cost-effectiveness estimates for pembrolizumab plus lenvatinib are reported to be less than £50,000 per QALY gained, which is within acceptable thresholds for end-of-life treatments. The economic model, while having some uncertainties, supports the treatment’s cost-effectiveness under the current commercial arrangements.

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

Patient experts reported significant improvements in quality of life after receiving pembrolizumab plus lenvatinib, allowing them to engage in sports and social activities. The treatment is perceived as less burdensome compared to traditional chemotherapy, which aligns with moderate improvements in HRQoL, although specific validated tools were not extensively detailed.

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

The safety profile of pembrolizumab plus lenvatinib is considered acceptable, with mostly mild to moderate adverse events reported. The committee noted that the treatment is well tolerated compared to traditional chemotherapy, which often has more severe side effects.

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

The treatment was compared against doxorubicin or paclitaxel monotherapy, which are appropriate comparators for patients who have progressed after platinum-based chemotherapy. However, the committee acknowledged that there is no standard second-line treatment, which raises some concerns about the robustness of the comparator selection.

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

The trial population in KEYNOTE-775 is considered generalizable to the Healthcare, with a representative sample of patients who have advanced or recurrent endometrial cancer. The committee noted that while there are some differences in age and weight, these do not significantly impact the treatment’s applicability to the broader patient population.

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

Pembrolizumab plus lenvatinib can be integrated into existing care pathways with minor adjustments. The treatment does not require new infrastructure or extensive training, making it a feasible option for healthcare providers.

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

The treatment is expected to have a manageable budget impact, with the potential for cost savings due to its effectiveness in extending life compared to current options. The economic model suggests that the resource use is justifiable given the benefits provided.

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

The evidence base is supported by a well-conducted Phase III trial (KEYNOTE-775) with a robust design. While there are some uncertainties regarding the generalizability of the results, the overall quality of evidence is strong.

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

There are notable uncertainties regarding the long-term effects of treatment and the economic model assumptions, particularly concerning treatment waning and the impact of subsequent therapies. These uncertainties may affect the overall decision-making process.

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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