Amgen Announces New LUMAKRAS™ (sotorasib) Combination Data From Phase 1b CodeBreaK 101 Study In Patients With KRAS G12C-mutated Cancers At AACR-NCI-EORTC 2021
"A critical component of cancer drug development is to interrogate multiple pathways to understand whether different combinations can meaningfully advance cancer care. For this reason,
LUMAKRAS in Combination with Afatinib (Abstract LBA6581)
The LUMAKRAS and afatinib combination arm enrolled 33 heavily pre-treated patients with KRAS G12C-mutated non-small cell lung cancer (NSCLC), including five patients previously treated with LUMAKRAS monotherapy. Ten patients received 20 mg of afatinib/960 mg of sotorasib (cohort 1; 4 patients with prior LUMAKRAS experience) and 23 patients received 30 mg of afatinib/960 mg of sotorasib (cohort 2; 1 patient with prior LUMAKRAS experience). The objective response rate (ORR) was 20% in cohort 1 and 35% in cohort 2, and the disease control rate was 70% and 74% in the two cohorts, respectively.
The most common treatment-related adverse events (TRAEs) for this study were diarrhea, nausea, and vomiting. TRAEs of grade 3 occurred in 30% of patients in both dose groups with diarrhea being the most common.
LUMAKRAS in Combination with Trametinib (Abstract LBA6580)
In CodeBreaK 101, the combination of LUMAKRAS and trametinib showed antitumor activity in heavily pre-treated patients with KRAS G12C-mutated solid tumors, including those with prior KRASG12C inhibitor treatment. A total of 41 patients were enrolled in the Phase 1b study with 18 patients with NSCLC, 18 patients with colorectal cancer (CRC) and five patients with other solid tumors. The maximum tolerated dose tested was 2 mg trametinib/960 mg sotorasib administered daily.
In patients with CRC who were KRASG12C inhibitor naïve, 9% achieved partial response (1 of 11), and 82% achieved disease control (9 of 11). In patients who were previously treated with a KRASG12C inhibitor, 14% achieved partial response (1 of 7), and 86% achieved disease control (6 of 7).
In patients with NSCLC who were KRASG12C inhibitor naïve, 20% achieved partial response (3 of 15) and 87% achieved disease control (13 of 15). In patients who were previously treated with a KRASG12C inhibitor, 67% achieved disease control (2 of 3).
The most common TRAEs for this study were diarrhea, rash, dermatitis acneiform, nausea and vomiting. No new safety concerns were identified.
About LUMAKRASTM (sotorasib)
LUMAKRAS is also being studied in multiple other solid tumors.1
The CodeBreaK clinical development program for Amgen's drug sotorasib is designed to treat patients with an advanced solid tumor with the KRAS G12C mutation and address the longstanding unmet medical need for these cancers.
CodeBreaK 100, the Phase 1 and 2, first-in-human, open-label multicenter study, enrolled patients with KRAS G12C-mutant solid tumors. Eligible patients must have received a prior line of systemic anticancer therapy, consistent with their tumor type and stage of disease. The primary endpoint for the Phase 2 study was centrally assessed objective response rate. The Phase 2 trial in NSCLC enrolled 126 patients, 124 of whom had centrally evaluable lesions by RECIST at baseline. The Phase 2 trial in colorectal cancer (CRC) is fully enrolled and results have been submitted for publication.
A global Phase 3 randomized active-controlled study comparing sotorasib to docetaxel in patients with KRAS G12C-mutated NSCLC (CodeBreaK 200) has completed enrollment.
For information, please visit www.hcp.codebreaktrials.com.
LUMAKRASTM is indicated for the treatment of adult patients with KRAS G12C-mutated locally advanced or metastatic non-small cell lung cancer (NSCLC), as determined by an FDA-approved test, who have received at least one prior systemic therapy.
This indication is approved under accelerated approval based on overall response rate (ORR) and duration of response (DOR). Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s).
LUMAKRAS™ (sotorasib) Important Safety Information
- LUMAKRAS™ can cause hepatotoxicity, which may lead to drug-induced liver injury and hepatitis.
- Among 357 patients who received LUMAKRAS™ in CodeBreaK 100, hepatotoxicity occurred in 1.7% (all grades) and 1.4% (Grade 3). A total of 18% of patients who received LUMAKRAS™ had increased alanine aminotransferase (ALT)/increased aspartate aminotransferase (AST); 6% were Grade 3 and 0.6% were Grade 4. In addition to dose interruption or reduction, 5% of patients received corticosteroids for the treatment of hepatotoxicity.
- Monitor liver function tests (ALT, AST and total bilirubin) prior to the start of LUMAKRAS™, every 3 weeks for the first 3 months of treatment, then once a month or as clinically indicated, with more frequent testing in patients who develop transaminase and/or bilirubin elevations.
- Withhold, dose reduce or permanently discontinue LUMAKRAS™ based on severity of adverse reaction.
Interstitial Lung Disease (ILD)/Pneumonitis
- LUMAKRAS™ can cause ILD/pneumonitis that can be fatal. Among 357 patients who received LUMAKRAS™ in CodeBreaK 100, ILD/pneumonitis occurred in 0.8% of patients, all cases were Grade 3 or 4 at onset, and 1 case was fatal. LUMAKRAS™ was discontinued due to ILD/pneumonitis in 0.6% of patients.
- Monitor patients for new or worsening pulmonary symptoms indicative of ILD/pneumonitis (e.g., dyspnea, cough, fever). Immediately withhold LUMAKRAS™ in patients with suspected ILD/pneumonitis and permanently discontinue LUMAKRAS™ if no other potential causes of ILD/pneumonitis are identified.
Most Common Adverse Reactions
- The most common adverse reactions ≥ 20% were diarrhea, musculoskeletal pain, nausea, fatigue, hepatotoxicity and cough.
- Advise patients to inform their healthcare provider of all concomitant medications, including prescription medicines, over-the-counter drugs, vitamins, dietary and herbal products.
- Inform patients to avoid proton pump inhibitors and H2 receptor antagonists while taking LUMAKRAS™.
- If coadministration with an acid-reducing agent cannot be avoided, inform patients to take LUMAKRAS™ 4 hours before or 10 hours after a locally acting antacid.
Please see LUMAKRASTM full Prescribing Information.
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- Hong DS, et al. N Engl J Med. 2020;383:1207-1217.
- Skoulidis F, Li BT, Dy GK, et al. N Engl J Med. 2021;384(25):2371-2381. doi:10.1056/NEJMoa2103695.
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