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Fedratinib / inrebic for treating disease-related splenomegaly or symptoms in myelofibrosis

As of November 2024, MARA’s assessment finds Fedratinib / Inrebic’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 clinical effectiveness: how much additional benefit the drug demonstrated over the care patients already receive — the first question every payer asks. 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.

Hematology

This rating sits within MARA’s Hematology coverage, alongside 20 other independently assessed treatments in the same area.

What payers will ask

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

Evidence from the FREEDOM-2 trial indicates that fedratinib significantly improves spleen volume and symptom response compared to best available therapy, with response rates of 36% and 34% respectively. However, the uncertainty regarding overall survival benefits beyond 6 months limits the rating to moderate benefit.

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

The cost-effectiveness estimates for fedratinib are within the acceptable range for Healthcare resources, with the EAG’s base-case results indicating an ICER below £30,000 per QALY gained, suggesting it is a cost-effective option.

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

The evidence suggests that fedratinib improves quality of life through symptom reduction, although the exact utility values were not derived from the recommended EQ-5D-3L. The committee acknowledged that even small symptom reductions can enhance quality of life.

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

Fedratinib has a good safety profile with manageable adverse events. The committee noted that while adverse events exist, they are mostly mild to moderate, indicating acceptable tolerability.

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

The main comparator was best available therapy, which is appropriate. However, the absence of a direct comparison with momelotinib, despite its relevance, limits the robustness of the evidence.

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

The trial population is representative of the intended patient population with intermediate-2 or high-risk myelofibrosis. The committee noted that the positioning of fedratinib aligns with clinical practice.

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

Fedratinib can be integrated into existing treatment pathways with minor adjustments, as it is positioned for use after ruxolitinib and when momelotinib is unsuitable.

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

The budget impact is manageable, and the economic model suggests that fedratinib is resource-efficient, aligning with Healthcare funding capabilities.

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

The evidence is primarily derived from the FREEDOM-2 trial, a Phase 3 RCT, which provides a strong foundation. However, uncertainties in long-term outcomes introduce some limitations.

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

There are notable uncertainties regarding long-term survival and treatment discontinuation, which could impact the overall assessment of fedratinib’s effectiveness.

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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