ADAGRASIB TAB
Clinical Criteria Summary
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Exclusion Criteria
- Prior treatment with a KRAS G12C inhibitor
- Unmanageable drug interaction identified
- Baseline QTc >480 msec
- Baseline total bilirubin > 1.5 times the Upper Limit of Normal (ULN) [or > 3 times the ULN if associated with liver metastases or Gilbert’s disease] and AST/ALT > 3 times the ULN (or > 5 times the ULN if associated with liver metastases)
- Known pregnancy
- Lactating (during and for 1 week following last dose)
Inclusion Criteria
- Diagnosis of KRAS G12C-mutated locally advanced (and ineligible for definitive therapy) or metastatic non-small cell lung cancer with at least 1 prior systemic therapy
- In combination with cetuximab for KRAS G12C-mutated locally advanced or metastatic colorectal cancer after receiving prior treatment with fluoropyrimidine-, oxaliplatin-, and irinotecan-based chemotherapy
Additional Required Inclusion Criteria
- Care for the oncologic condition provided by VA or VA Community Care oncology provider
- Goals of care and role of Palliative Care consult have been discussed and documented
- Eastern Cooperative Oncology Group (ECOG) Performance Status 0 to 2
Additional Conditional Inclusion Criteria
- For females who can become pregnant and males with partners who can become pregnant: Counseling provided on potential risks vs. benefits and the use of effective contraception during therapy and for at least one week following the last dose
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Indication & Patient Population
- Adult patients with KRAS G12C-mutated locally advanced or metastatic non-small cell lung cancer (NSCLC)
- Patients who have received at least one prior systemic therapy
Diagnostic Testing & Patient Selection
- Mutation status must be determined by an FDA-approved test
- Test tumor or plasma specimens for KRAS G12C mutation; if no mutation is detected in a plasma specimen, test tumor tissue
- Do not use in patients who have previously received another KRAS G12C inhibitor (e.g., sotorasib)
Dosing & Administration
- Recommended dosage: 600 mg (3 x 200 mg tablets) orally twice daily
- Swallow tablets whole with or without food; take on an empty stomach until disease progression or unacceptable toxicity
- No clinically significant pharmacokinetic differences in patients with creatinine clearance 15-90 mL/min or mild to severe hepatic impairment
Monitoring & Laboratory Requirements
- Monitor liver function laboratory tests prior to starting therapy (baseline total bilirubin ≤1.5 times ULN, or ≤3 times ULN if associated with liver metastases or Gilbert’s disease; AST and ALT ≤3 times ULN, or ≤5 times ULN if associated with liver metastases)
- Monitor EKG and electrolytes prior to starting therapy (exclude patients with baseline QTc >480 milliseconds or family history of long QT syndrome)
- Monitor for gastrointestinal toxicity, hepatotoxicity, interstitial lung disease/pneumonitis, and QTc interval prolongation
Contraindications & Drug Interactions
- Avoid concomitant use with strong CYP3A4 inducers or inhibitors
- Avoid concomitant use with sensitive CYP3A4, CYP2C9, CYP2D6, or P-gp substrates due to risk of serious adverse reactions from minimal concentration changes
- Avoid concomitant use with drugs that prolong QT interval
- Avoid in patients with congenital long QT syndrome or concurrent QTc prolongation
Special Populations
- Pregnancy: Adverse embryo-fetal events observed in animal reproduction studies; use with caution
- Breastfeeding: Not recommended during treatment and for 1 week after the last adagrasib dose due to potential for serious adverse reactions in the breastfed infant
Place in Therapy / Line of Treatment
- Reserved for second-line and beyond settings following progression on or after first-line therapy (immunotherapy alone or with platinum-based chemotherapy)
- Indication is approved under accelerated approval based on objective response rate and duration of response; continued approval contingent upon verification of clinical benefit in confirmatory trial(s)