MEK inhibitor (antineoplastic): Class Overview and Comparison
Quick answer: MEK inhibitor (antineoplastic) are a class of medicines used for specific therapeutic indications. iMedic covers 3 mek inhibitor (antineoplastic) substances. Below is a comparison table linking to detailed pages for each.
MEK inhibitor (antineoplastic) on iMedic (3 substances)
| Substance | Primary indications | Mechanism | Common dose |
|---|---|---|---|
| Cotellic | Metastatic melanoma with BRAF V600 mutation (combined with vemurafenib) | Selective inhibitor of MEK1 and MEK2 kinases in the MAPK pathway, blocking tumor | 60 mg once daily for 21 days followed by 7 days off |
| Mekinist | BRAF V600-mutated melanoma, Non-small cell lung cancer | Selective inhibitor of MEK1/MEK2 kinases blocking MAPK pathway signaling in BRAF | 2 mg once daily (trametinib) |
| Mektovi | BRAF V600-mutated melanoma, BRAF V600E-mutated colorectal cancer | Selective MEK1/MEK2 kinase inhibitor used in combination with encorafenib for BR | 45 mg twice daily (binimetinib) |
About MEK inhibitor (antineoplastic)
MEK inhibitor (antineoplastic) share a common mechanism of action and clinical use. Specific dosing, side effects, contraindications, and drug interactions vary between individual substances within the class. Click any substance above for full prescribing information and patient guidance.
Common considerations across the class
- Indication-specific selection: Different members may be preferred for different conditions or patient populations
- Dose equivalence: Members of the same class are not always interchangeable on a 1:1 dose basis
- Drug interactions: Class members often share interaction profiles (e.g., CYP enzyme effects) but individual variation matters
- Side effects: Some side effects are class-wide; others are substance-specific
- Contraindications: Individual contraindications may not generalize across the class
Always consult the prescribing information for the specific medicine prescribed and discuss with your clinician.
Frequently asked questions
What are MEK inhibitor (antineoplastic)?
MEK inhibitor (antineoplastic) are medicines that share a common mechanism of action used for specific therapeutic indications. iMedic currently covers 3 substances in this class with detailed pages for each.
Are all MEK inhibitor (antineoplastic) interchangeable?
No. While medicines in the same class share a mechanism, they differ in potency, dosing, drug interactions, and tolerability. Switching between them is a clinical decision based on individual response, side effects, and treatment goals.
How do I choose between different MEK inhibitor (antineoplastic)?
Selection depends on the specific clinical indication, patient factors (age, comorbidities, kidney/liver function, other medications), tolerability of side effects, cost, and clinician preference. This is a prescribing decision.
Are MEK inhibitor (antineoplastic) available as generics?
Most well-established class members are available as generic alternatives, often substantially less expensive than brand-name versions while clinically equivalent. Newer members may still be brand-only.
Last reviewed: by iMedic Medical Editorial Team. Our editorial process.