| Metastasis from malignant neoplasm of colon and/or rectum
Lonsurf vs Lumakras
Side-by-side clinical, coverage, and cost comparison for metastasis from malignant neoplasm of colon and/or rectum.Deep comparison between: Lonsurf vs Lumakras with Prescriber.AI
AI compares prescribing info and payer-specific access barriers across 1,200+ formularies. Here's a preview of what prescribers are already asking.Safety signalsLumakras has a higher rate of injection site reactions vs Lonsurf based on FDA-approved prescribing information
Coverage gaps3 major payers require step therapy for Lumakras but not Lonsurf, including UnitedHealthcare
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Category
Lonsurf
Lumakras
At A Glance
Oral
Twice daily, Days 1-5 and Days 8-12 of 28-day cycle
Nucleoside metabolic inhibitor
Oral
Once daily
KRAS G12C inhibitor
Indications
- Metastasis from malignant neoplasm of colon and/or rectum
- Gastric Adenocarcinoma
- Adenocarcinoma of the gastroesophageal junction
- Non-Small Cell Lung Carcinoma
- Metastasis from malignant neoplasm of colon and/or rectum
Dosing
Metastasis from malignant neoplasm of colon and/or rectum, Gastric Adenocarcinoma, Adenocarcinoma of the gastroesophageal junction 35 mg/m2 (max 80 mg per dose) orally twice daily with food on Days 1-5 and Days 8-12 of each 28-day cycle, as single agent or in combination with bevacizumab, until disease progression or unacceptable toxicity.
Severe Renal Impairment (CLcr 15-29 mL/min) 20 mg/m2 orally twice daily with food on Days 1-5 and Days 8-12 of each 28-day cycle; reduce to 15 mg/m2 twice daily if 20 mg/m2 is not tolerated; permanently discontinue if 15 mg/m2 is not tolerated.
Non-Small Cell Lung Carcinoma 960 mg (three 320 mg or four 240 mg or eight 120 mg tablets) orally once daily as a single agent until disease progression or unacceptable toxicity.
Metastasis from malignant neoplasm of colon and/or rectum 960 mg (three 320 mg or four 240 mg or eight 120 mg tablets) orally once daily in combination with panitumumab until disease progression or unacceptable toxicity; administer the first dose prior to the first panitumumab infusion.
Contraindications
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Adverse Reactions
Most common (>=10%) Neutropenia, anemia, thrombocytopenia, fatigue, nausea, decreased appetite, diarrhea, vomiting, abdominal pain, pyrexia
Serious Severe myelosuppression (including febrile neutropenia), pulmonary emboli, interstitial lung disease (including fatal cases)
Most common (>=20%) - NSCLC Diarrhea, musculoskeletal pain, nausea, fatigue, hepatotoxicity, cough.
Most common (>=20%) - mCRC with panitumumab Rash, dry skin, diarrhea, stomatitis, fatigue, musculoskeletal pain.
Serious Hepatotoxicity, interstitial lung disease/pneumonitis, pneumonia, diarrhea (NSCLC); sepsis, intestinal obstruction (mCRC with panitumumab).
Pharmacology
LONSURF combines trifluridine, a thymidine-based nucleoside analog that is incorporated into DNA to interfere with DNA synthesis and inhibit cell proliferation, and tipiracil, a thymidine phosphorylase inhibitor that increases trifluridine systemic exposure by blocking its primary metabolic pathway.
KRAS G12C inhibitor; sotorasib forms an irreversible, covalent bond with the unique cysteine of KRAS G12C, locking the protein in an inactive state that prevents downstream signaling without affecting wild-type KRAS, thereby blocking tumor cell growth and promoting apoptosis in KRAS G12C tumor cell lines.
Enter your patient's insuranceCheck specific coverage details for your patient.
Most Common Insurance
Anthem BCBS
Lonsurf
- Covered on 5 commercial plans
- PA (12/12) · Step Therapy (0/12) · Qty limit (0/12)
Lumakras
- Covered on 5 commercial plans
- PA (12/12) · Step Therapy (0/12) · Qty limit (11/12)
UnitedHealthcare
Lonsurf
- Covered on 4 commercial plans
- PA (6/8) · Step Therapy (0/8) · Qty limit (2/8)
Lumakras
- Covered on 4 commercial plans
- PA (6/8) · Step Therapy (0/8) · Qty limit (6/8)
Humana
Lonsurf
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (0/3) · Qty limit (2/3)
Lumakras
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (0/3) · Qty limit (2/3)
Coverage data sourced from MMIT. Updated monthly.
Savings
Cost estimate not availableAssistance Fund: Gastric Cancer: Waitlist
Commercial or private insurance
Medicare, Medicaid, VA, TRICARE
Cost estimate not availableAmgen Safety Net Foundation
Commercial or private insurance
Medicare, Medicaid, VA, TRICARE
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Clinical data sourced from FDA-approved labeling. Coverage data via MMIT. Updated monthly.