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Lumykras / sotorasib for treating KRAS G12C mutation-positive locally advanced or metastatic non-small-cell lung cancer

As of March 2022, MARA’s assessment finds Lumykras / Sotorasib’s reimbursement risk concentrated in resource use and cost implications, with care pathway integration 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 care pathway integration carries weight because that domain asks how the drug fits into the way care is organised today; a treatment that demands new infrastructure or displaces an established pathway faces extra scrutiny.

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

Sotorasib has been shown to increase the time before cancer progression and overall survival compared to docetaxel and docetaxel plus nintedanib in an indirect treatment comparison. However, the evidence is primarily based on a Phase 2 single-arm trial (CodeBreaK100), which does not provide the robust Phase 3 evidence required for a higher rating. The committee acknowledged the promising nature of the evidence but highlighted the uncertainty due to the lack of direct comparative data.

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

The cost-effectiveness estimates for sotorasib are highly uncertain, primarily due to the reliance on an uncontrolled single-arm trial for clinical evidence and the use of unanchored indirect treatment comparisons. While there is potential for sotorasib to be cost-effective, the committee concluded that the current estimates exceed NICE’s acceptable thresholds, necessitating further evidence.

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

The evidence suggests that sotorasib, being an oral treatment, may improve health-related quality of life compared to intravenous chemotherapy, which is associated with more adverse effects and treatment burden. The committee noted that the utility estimates were plausible, although there are uncertainties in the data collection methods.

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

Sotorasib has a favorable safety profile with manageable adverse effects, particularly when compared to traditional chemotherapy options. The committee noted that the adverse events reported were mostly mild to moderate, supporting a good tolerability rating.

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

The clinical evidence for sotorasib was primarily compared to docetaxel and docetaxel plus nintedanib, which are relevant comparators. However, the absence of direct head-to-head trials introduces uncertainty, and the committee noted that the company did not provide evidence comparing sotorasib with platinum-doublet chemotherapy, which is a significant treatment option.

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

The trial population in the CodeBreaK100 study included a diverse group of patients with KRAS G12C mutation-positive NSCLC, which is representative of the intended patient population. However, there are some limitations in subgroup analyses that could affect generalizability.

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

Sotorasib is an oral treatment that can be integrated into existing care pathways with minimal disruption. The committee noted that it is less resource-intensive compared to intravenous therapies, which aligns well with current clinical practices.

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

While sotorasib is expected to be less resource-intensive than traditional chemotherapy, the overall budget impact remains uncertain due to the high cost of the treatment and the need for further evidence to support its cost-effectiveness. The committee expressed concerns about the potential high resource burden.

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

The evidence base for sotorasib is primarily derived from a Phase 2 trial, which raises concerns about robustness and generalizability. The committee acknowledged the promising results but emphasized the need for more rigorous Phase 3 data to strengthen the evidence base.

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

There are significant uncertainties surrounding the clinical effectiveness and cost-effectiveness of sotorasib, particularly due to the reliance on indirect comparisons and the lack of direct trial evidence. The committee noted that these uncertainties could impact decision-making and access to the treatment.

Be alerted when this rating changes:

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