Mekinist (trametinib) prior authorization
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Prior authorization and coverage criteria for Mekinist (trametinib) across FDA‑labeled and selected NCCN‑recommended oncologic indications for UnitedHealthcare members; applies to prescribers requesting coverage for the drug.
No material clinical or coverage changes in this revision.
Coverage Criteria by Indication
Pediatric (<19 years) coverage
Covered when ALL of the following are met for patients under 19 years:
Authorization will be issued for 12 months
Melanoma (initial)
Initial authorization for melanoma — Mekinist will be approved based on one of the following pathways:
Authorization will be issued for 12 months
Melanoma (reauthorization)
Reauthorization for melanoma
Authorization will be issued for 12 months
NSCLC
Non‑Small Cell Lung Cancer (NSCLC) initial authorization
Authorization will be issued for 12 months
NSCLC (reauthorization)
NSCLC reauthorization
Authorization will be issued for 12 months
Thyroid and related indications (initial)
Thyroid cancer initial authorization — multiple pathways
Authorization will be issued for 12 months
Authorization will be issued for 12 months
Authorization will be issued for 12 months
Thyroid (reauthorization)
Thyroid reauthorization
Authorization will be issued for 12 months
CNS cancers
Central nervous system (CNS) cancers initial authorization
Authorization will be issued for 12 months
CNS (reauthorization)
CNS reauthorization
Authorization will be issued for 12 months
Central Nervous System (CNS) Cancers - Initial
Covered when ALL of the following are met
Authorization issued for 12 months
Central Nervous System (CNS) Cancers - Reauthorization
Reauthorization covered when ALL of the following are met
Authorization will be issued for 12 months
Epithelial Ovarian/Fallopian Tube/Primary Peritoneal Cancer - Initial
Covered when ALL of the following are met
Authorization will be issued for 12 months
Epithelial Ovarian/Fallopian Tube/Primary Peritoneal Cancer - Reauthorization
Reauthorization covered when ALL of the following are met
Authorization will be issued for 12 months
Hepatobiliary Cancers - Initial
Covered when ALL of the following are met
Authorization will be issued for 12 months
Hepatobiliary Cancers - Reauthorization
Reauthorization covered when ALL of the following are met
Authorization will be issued for 12 months
Histiocytic Neoplasms - Initial
Covered when ALL of the following are met
Authorization will be issued for 12 months
Histiocytic Neoplasms - Reauthorization
Reauthorization covered when ALL of the following are met
Authorization will be issued for 12 months
Solid Tumors - Initial
Covered when ALL of the following are met
Authorization will be issued for 12 months
Solid Tumors - Reauthorization
Reauthorization covered when ALL of the following are met
Authorization will be issued for 12 months
Pancreatic Cancer / Ampullary Cancer - Initial Authorization
Covered when ALL of the following are met
Authorization for 12 months
Reauthorization (general across listed indications)
Covered when ALL of the following are met
Authorization will be issued for 12 months
Hairy Cell Leukemia - Initial Authorization
Covered when ALL of the following are met
Authorization for 12 months
Salivary Gland Tumor - Initial Authorization
Covered when ALL of the following are met
Authorization for 12 months
Gastrointestinal Stromal Tumor (GIST) - Initial Authorization
Covered when ALL of the following are met
Authorization for 12 months
NCCN Recommended Regimens
Covered when ANY of the following are met
Authorization will be issued for 12 months
Some states have statutory mandates that require coverage for certain off‑label medication uses or direct the use of specific compendia. Where a state mandate applies, it supersedes the criteria in this benefit document or the notification criteria and may create state‑specific coverage obligations or overrides.
Mekinist is not approved as first‑line therapy for hepatobiliary cancers or for general solid tumor indications under this policy unless explicitly stated. For hepatobiliary malignancies (gallbladder, extrahepatic and intrahepatic cholangiocarcinoma) and for other solid tumors, coverage requires that Mekinist be used as a subsequent treatment after progression on or after systemic treatment, and for many solid tumor indications the disease must be unresectable or metastatic and BRAF V600E mutation–positive with concomitant use of Tafinlar (dabrafenib) where specified.
Coverage under this policy may be affected by external constraints. State mandates, federal regulatory requirements, and the member’s specific benefit plan can alter applicability of the criteria. Additionally, other UnitedHealthcare policies and utilization management programs (for example, compendia requirements or program‑specific processes) may apply and change how authorization is handled for an individual member.
Initial Therapy Criteria
Initial therapy requirements
Initial therapy requirements — initial therapy coverage requires diagnosis-specific criteria, BRAF mutation positivity where specified, and for many indications use in combination with dabrafenib.
Authorization will be issued for 12 months
Initial therapy criteria (summary)
Initial authorization criteria differ by indication; approvals are indication- and context-specific.
Authorization will be issued for 12 months
Initial Therapy
Initial authorization criteria by indication
See each indication for detail
Reauthorization / Continuation Criteria
Reauthorization / continuation
Reauthorization for continued coverage
Authorization renewed for 12 months
Reauthorization / Continuation Therapy
Reauthorization is allowed when there is no evidence of disease progression on Mekinist therapy.
Authorization will be issued for 12 months
Reauthorization
Reauthorization rule applied across indications
Authorization renewed for 12 months
Reauthorization
Reauthorization terms
Step Therapy and Sequencing
| Step | Requirement | Reauthorization condition |
|---|---|---|
| 1 | Use in combination with dabrafenib (Tafinlar) is required for many labeled indications (e.g., melanoma, CNS tumors, solid tumors where specified). | Reauthorization contingent on absence of disease progression while on Mekinist therapy; evidence of progressive disease will prevent reauthorization. |
| Step | Requirement | Context / Notes |
|---|---|---|
| 1 | Use as subsequent treatment after progression on or after systemic treatment is required for hepatobiliary cancers and for 'solid tumor' indications where specified. | Applies when disease has progressed following prior systemic therapy; disease often must be unresectable or metastatic and biomarker requirements (e.g., BRAF V600E) may apply. |
| Step | Requirement | Applicable indications (examples) |
|---|---|---|
| 1 | Use in combination with Tafinlar (dabrafenib) is required for multiple covered indications; combination therapy is a stated requirement in initial authorization criteria for these indications. | Examples include: melanoma (adjuvant and metastatic), NSCLC with BRAF V600E, CNS tumors with BRAF V600E activity, solid tumors and hepatobiliary cancers with BRAF V600E, pancreatic/ampullary adenocarcinoma, and BRAF‑mutated GIST — where combination use is specified. |
Prior Authorization, Documentation, and Provider Requirements
Prior authorization/notification required; pediatric auto-processing
Prior authorization/notification is required under UnitedHealthcare Clinical Pharmacy Programs (Program Number 2026 P 1062-17). Note: prescriptions for members under 19 years of age will automatically process without a coverage review and authorization will be issued for 12 months.
- Program Number: 2026 P 1062-17
- Members <19 years auto-process without coverage review
- Authorization when issued: 12 months
Prior authorization required; 12-month approval when criteria met
Prior authorization is required for Mekinist and, when the specified diagnostic and treatment criteria are met, approval will be issued for 12 months for the listed indications.
- Prior authorization is required for Mekinist for covered indications
- Authorization duration: 12 months when criteria are met
Prior authorization required for each cancer indication; 12‑month approvals
Prior authorization is required across the cancer indications listed and will be approved for 12 months when the specific diagnostic, biomarker, and treatment-context criteria for each indication are satisfied.
- Approvals contingent on meeting indication-specific criteria (diagnosis, biomarker, combination therapy where listed)
- Authorization issued for 12 months
Prior authorization processes may use automated claim-based approvals
UnitedHealthcare may use prior authorization/notification automation; initial approvals and reauthorizations can be granted based on prior claim/medication history, diagnosis codes (ICD‑10), and/or claim logic.
- Automated approvals/re-approvals vary by program or therapeutic class
- Approvals may be based solely on claim history, ICD‑10 codes, and/or claim logic
Initial authorization requires diagnosis and biomarker; reauthorization requires no progression
Initial authorization criteria require documentation of the indicated diagnosis; for many indications, positive BRAF V600 (V600E or V600K) mutation and use in combination with dabrafenib (Tafinlar) are required. Reauthorization requires no evidence of disease progression while on Mekinist therapy.
- Initial: diagnosis-specific criteria and BRAF V600 mutation positivity where specified
- Many indications: use in combination with Tafinlar (dabrafenib)
- Reauthorization: patient must not show evidence of progressive disease on Mekinist
Approved as subsequent-line therapy for hepatobiliary and solid tumors
For hepatobiliary cancers and for general solid tumors, Mekinist is approved only as subsequent-line therapy after progression on or after systemic treatment; documentation must support prior systemic therapy and disease progression.
- Hepatobiliary initial authorization requires use as subsequent treatment after progression on/after systemic therapy
- Solid tumors: approval requires prior progression and unresectable or metastatic disease
Step therapy/sequencing: follow indication-specific requirements
Coverage is driven by indication‑specific criteria and combination-use rules; the policy does not set a generalized step therapy sequence beyond requiring that listed criteria (including combination with dabrafenib where specified) be met.
- No uniform step sequence specified — follow indication-specific requirements
- Many indications require combination use with Tafinlar (dabrafenib)
Supply limits may apply
Supply limits may apply to Mekinist claims; providers should anticipate utilization controls and check claim adjudication responses for quantity restrictions.
- Supply limits may be in place
Submit FDA‑approved test documentation of BRAF V600 mutation when required
For labeled BRAF‑mutant indications, submit documentation of BRAF V600 mutation status (V600E or V600K) as detected by an FDA‑approved companion diagnostic when requesting authorization.
- Evidence of BRAF V600E or V600K mutation via FDA‑approved test is required where specified
- FDA companion diagnostic information is referenced by the policy
Required documentation: diagnosis, biomarker, prior therapy, disease status, and combination use
Documentation required with the authorization request must demonstrate the diagnosis, BRAF V600E mutation status when applicable, prior systemic treatment and progression when required, unresectable or metastatic disease when applicable, and evidence of concomitant use with Tafinlar (dabrafenib) for combination indications.
- Diagnosis consistent with the requested indication
- BRAF V600E mutation status when required
- Prior systemic therapy and progression for subsequent-line indications
- Unresectable or metastatic disease documentation when required
- Concomitant use with Tafinlar (dabrafenib) when listed
Claims-based authorization possible — ensure accurate claims and ICD‑10 coding
UnitedHealthcare may approve initial authorizations and reauthorizations based solely on previous claim/medication history, diagnosis codes (ICD‑10), and/or claim-driven rules; providers should ensure claims and diagnosis coding accurately reflect the clinical situation.
- Approvals may be granted based on prior claim/medication history and ICD‑10 codes
- Ensure accurate coding and prior-therapy claims to support authorization
Authorization duration is 12 months; state/federal/plan constraints may apply
Authorizations when granted are issued for 12 months. Coverage is also subject to state mandates, federal regulatory requirements, and the member's specific benefit plan, which may supersede or affect coverage.
- Authorization duration: 12 months
- State mandates, federal requirements, and member benefit plans may impact coverage
State mandates may supersede policy criteria — verify state requirements
Where applicable, state mandates may supersede the benefit document or notification criteria; verify state‑specific requirements because mandated coverage may alter authorization or coverage decisions.
- State mandates may apply and supersede policy language
- Check state-specific mandates for off-label coverage or compendium references
Denial risk: missing required BRAF mutation evidence or missing required combination therapy
Lack of documented BRAF V600E (or V600 where required) mutation for indications that require it, or failure to use Mekinist in combination with Tafinlar (dabrafenib) where the policy requires combination therapy, may result in denial of coverage.
- Denial trigger: missing required BRAF V600 mutation evidence
- Denial trigger: not using Mekinist with dabrafenib for combination-only indications
Reauthorization denial trigger: progression on therapy
If there is evidence of progressive disease while the patient is on Mekinist therapy, reauthorization will be denied — reauthorization requires absence of disease progression.
- Reauthorization denied if patient shows disease progression on Mekinist
Automated approval variability — ensure accurate claims and documentation
Automated approval and reapproval processes vary by program and therapeutic class; because approvals can be based on previous claim history and claim logic, missing or inaccurate claims data or diagnosis codes may lead to denial.
- Automated approvals vary by program/therapeutic class
- Missing or inaccurate claim/diagnosis data can cause denials when automation is used
Definitions and Key Terms
Background
Mekinist (trametinib) is a MEK kinase inhibitor indicated as monotherapy for BRAF‑inhibitor treatment‑naïve unresectable or metastatic melanoma with BRAF V600E or V600K mutations, and it is indicated in combination with dabrafenib (Tafinlar) for multiple BRAF V600E/V600K mutant malignancies including melanoma, non‑small cell lung cancer, anaplastic thyroid cancer, and certain pediatric solid tumors. Some approvals are accelerated and contingent upon confirmatory clinical trials.
Quantity Limits and Supply
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