Independent Market Access and Reimbursement Risk Assessment.

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Somapacitan for treating growth hormone deficiency in people 3 to 17 years

As of June 2025, MARA’s assessment finds Somapacitan’s reimbursement risk concentrated in quality of life, 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.

Endocrinology

This rating sits within MARA’s Endocrinology coverage, alongside 9 other independently assessed treatments in the same area.

What payers will ask

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

The evidence indicates that somapacitan works comparably to somatropin, which suggests non-inferiority. However, there is no mention of Phase 3 trial data or substantial superiority over existing treatments, which limits the rating to B++. The document states that clinical trial evidence shows somapacitan works as well as somatropin, but does not provide compelling evidence of superior outcomes.

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

The cost comparison suggests that the cost of somapacitan is similar to or lower than that of somatropin, indicating a clear cost-effective profile under common thresholds. The document states that there is enough evidence to show that somapacitan provides benefits and value for money, supporting a rating of A+.

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

The document does not provide specific data on HRQoL improvements associated with somapacitan. While it mentions that somapacitan can be used routinely across the Healthcare, it lacks detailed evidence on quality-of-life outcomes, leading to a rating of B+.

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

The document does not highlight any significant safety concerns or adverse effects associated with somapacitan, indicating an acceptable safety profile. However, without detailed safety data, the rating is limited to A.

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

Somapacitan was evaluated against somatropin and somatrogon, which are appropriate comparators for the intended population. The document indicates that somapacitan is offered to the same population as these treatments, supporting a rating of A+.

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

The patient population for somapacitan is well-defined, focusing on children aged 3 to 17 years with growth hormone deficiency. However, there is limited information on subgroup analyses, leading to a rating of A.

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

The document indicates that somapacitan can be integrated into existing treatment pathways without significant disruption, as it is used similarly to existing treatments. This supports a rating of A+.

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

The document suggests that somapacitan is a cost-effective option compared to existing treatments, with manageable budget implications. However, it does not provide extensive details on broader resource use, leading to a rating of A.

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

While the evidence base is supportive, it lacks multiple rigorous Phase III RCTs and relies on cost comparisons rather than robust clinical trial data. This leads to a rating of B++.

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

The document indicates that somapacitan addresses a specific unmet need in the pediatric population, which mitigates some uncertainty. However, there are still some unknowns regarding long-term outcomes, leading to a rating of A.

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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