MARA Rating Methodology
Version 2.0 — August 2026
MARA R.A.T.I.N.G.™ METHODOLOGY
Method v2.0 — August 2026
1. Purpose & Scope
The MARA R.A.T.I.N.G.™ methodology produces an independent, standardized assessment of one question: how likely is it that a medicine — licensed or in late-stage development — will achieve broad reimbursement from leading Health Technology Assessment (HTA) bodies and payers?
A MARA Rating does not evaluate regulatory approval or clinical efficacy in isolation. It assesses post-authorisation market-access risk — the risk that a medicine wins approval and still fails to secure the price, coverage, or patient access its owners expect.
A MARA Rating is a standardized opinion of market-access risk, calibrated against historical outcomes. It is not a forecast of any individual outcome.
2. Rating Philosophy
The methodology adapts internationally recognized risk-rating principles to pharmaceutical market access. Four principles govern every rating:
Multi-factor discipline. Ten structured evidence domains capture clinical value, economic justification, and system integration. No single number or study decides a rating.
Historical calibration. Domain weights are informed by MARA’s longitudinal database of real HTA decisions. The framework reflects how payers have actually decided — not how we assume they will.
Independent committee governance. Every rating is determined by a multidisciplinary panel. No single analyst decides, and no client can direct an outcome.
Continuous surveillance. Evidence changes, and ratings follow it — under the published rules of our Rating Actions & Surveillance Policy, never silently.
3. Analytical Framework
3.1 The Ten Evaluation Domains
Each asset is assessed across ten standardized domains aligned with HTA logic:
- Clinical effectiveness
- Health-related quality of life
- Cost-effectiveness
- Safety & tolerability
- Comparator appropriateness
- Population representativeness
- Care-pathway integration
- Budget impact & resource use
- Evidence quality & robustness
- Residual uncertainty & equity considerations
Each domain contains four calibrated sub-domains, scored using structured qualitative anchors aligned with published HTA precedents. The domains define what must be demonstrated; they do not prescribe how sponsors must demonstrate it. As evidence practices evolve — real-world data, new trial formats — the framework absorbs them without changing what it measures.
3.2 The Rating Scale
Domain evidence is converted into a composite letter grade:
| Grade | Plain-English Signal |
|---|---|
| A++ | Minimal market access risk |
| A+ | Very low risk |
| A | Low risk; barriers identifiable and manageable |
| B++ | Marginal – elevated risk begins here; historically, outcomes in this band split |
| B+ | High risk; significant barriers |
| B | Very high risk without major changes to evidence or positioning |
| C | Severe market access risk |
| — | No MARA Rating (insufficient public evidence) |
The proprietary weighting coefficients, non-linear aggregation logic, and break-points are the intellectual property of MARA Rating Company AG and are not disclosed. What we do keep in the open is the record itself: every published rating stays on the MARA Ratings List with its as-of date, whatever the subsequent decision. Band-level calibration is documented in dated Calibration Annexes, available to clients and diligence counterparties on request.
4. The R.A.T.I.N.G.™ Process
R — Robust Evidence Review. All publicly available material evidence is collected and validated. Only public, verifiable evidence enters a rating: confidential projections and forward-looking claims are excluded unless supported by published data.
A/T — Aligned Ten-Domain Assessment & Historical Weighting. Evidence is mapped to the structured scorecards. Domain scores are weighted using MARA’s historical database to reflect payer-aligned precedent.
I — Independent Expert Committee. A multidisciplinary panel — health-economics scientists, clinicians, access specialists, pricing strategists — challenges the assumptions and sensitivity analyses. Minutes are recorded.
N — Neutral Consensus Determination. The grade is set by structured deliberation. Issuers may correct factual inaccuracies; they cannot alter analytical opinions.
G — Grade Certification & Publication. The final rating is issued with documented rationale. Publication may be public or confidential at the client’s discretion — but once public, a rating stays on the record whatever the subsequent outcome.
5. Surveillance & Rating Actions
Ratings are monitored at least annually, and immediately upon material developments — new pivotal data, HTA decisions, pricing developments, safety findings, or changes in standard of care. Ratings may be affirmed, upgraded, downgraded, placed under review, or withdrawn.
The complete rules — what triggers an action, how the method itself is version-controlled, and how the record is kept in the open — are published in the Rating Actions & Surveillance Policy.
6. Calibration & Performance
Every MARA Rating cites the methodology version under which it was issued. The current methodology epoch is MARA 2.0, effective 11 August 2026: the calibration record was rebuilt so that calibration is measured outcome-blind and certified by independent reviewers, with every figure traceable to hash-manifested evidence archives. Ratings issued under earlier method versions remain on the record under their version and are not restated.
Band-level calibration results are recorded in dated Calibration Annexes. Each annex states its corpus definition, its as-of date, and its results in full; annexes are reissued as the evidence corpus grows, and superseded annexes stay on file — superseded, never edited. The current annex is available to clients and diligence counterparties on request.
The methodology is reviewed annually by the Expert Committee. Any change produces a new, dated methodology version, applied prospectively only; issued ratings stand. The method is never adjusted retroactively, and never at the request of a rated company. We keep the misses with the hits: every published rating remains on the record, dated, next to the decision that eventually followed it.
7. Independence & Governance
- Analysts are excluded from commercial pricing negotiations.
- Committee chairs rotate. High-value ratings require a majority of external experts.
- Evidence is restricted to public, verifiable sources.
- No company can commission a change to its own rating, and no rating is ever altered on client request.
- Methodology definitions and surveillance policies are publicly disclosed; proprietary coefficients remain confidential.
- An internal audit function benchmarks every rating against subsequent HTA outcomes.
MARA’s methodology is additionally undergoing independent academic validation in a project supported by Innosuisse, the Swiss federal innovation agency, in collaboration with ZHAW Zurich University of Applied Sciences.
Independence is structural, not symbolic.
8. Appeals & Corrections
Issuers may request a formal review upon presentation of new, material evidence. Appeals are heard by a committee independent of the original panel. Factual errors are corrected and documented; opinions are not negotiable.
9. Disclosure & Use
The MARA Rating® is an independent opinion of a drug’s market access pharma risk profile and is provided for informational purposes only—not as investment, medical, legal or any other type of advice. All opinions, analyses, and recommendations are statements of opinion, not statements of fact, and are supplied “as-is” without warranty of any kind, express or implied, including accuracy, completeness, or fitness for any particular purpose. Users assume full responsibility for their decisions and any consequences thereof. MARA Rating Company expressly disclaims all liability for any outcomes arising from the use of, or actions taken based on, this report. Report may contain public sector information licensed under the Open Government Licence v3.0.© Crown copyright 2025 and others. All brand names are the property of their respective owners. For reimbursement & HTA professionals only – Not for patients, prescribers or the general public.
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