Lorviqua (lorlatinib) vs Enhertu (fam-trastuzumab deruxtecan-nxki)
Lorviqua (lorlatinib) vs Enhertu (fam-trastuzumab deruxtecan-nxki)
Lorviqua (lorlatinib) is a targeted therapy specifically designed for the treatment of patients with anaplastic lymphoma kinase (ALK)-positive non-small cell lung cancer (NSCLC), particularly for those who have developed resistance to other ALK inhibitors. Enhertu (fam-trastuzumab deruxtecan-nxki), on the other hand, is an antibody-drug conjugate used for the treatment of HER2-positive breast cancer and is not indicated for lung cancer. The choice between these two medications would be based on the specific type of cancer a patient has, as they target different molecular pathways and are not interchangeable; Lorviqua is for ALK-positive NSCLC, while Enhertu is for HER2-positive breast cancer.
Difference between Lorviqua and Enhertu
Metric | Lorviqua (lorlatinib) | Enhertu (fam-trastuzumab deruxtecan-nxki) |
---|---|---|
Generic name | lorlatinib | fam-trastuzumab deruxtecan-nxki |
Indications | ALK-positive metastatic non-small cell lung cancer (NSCLC) | HER2-positive breast cancer, HER2-positive gastric or gastroesophageal junction adenocarcinoma |
Mechanism of action | ALK tyrosine kinase inhibitor | HER2-directed antibody and topoisomerase inhibitor conjugate |
Brand names | Lorviqua | Enhertu |
Administrative route | Oral | Intravenous |
Side effects | Edema, neuropathy, cognitive effects, fatigue, weight gain | Nausea, fatigue, vomiting, alopecia, constipation |
Contraindications | Hypersensitivity to lorlatinib | Hypersensitivity to fam-trastuzumab deruxtecan-nxki or excipients |
Drug class | Tyrosine kinase inhibitor | Antibody-drug conjugate |
Manufacturer | Pfizer | Daiichi Sankyo and AstraZeneca |
Efficacy
Lorviqua (lorlatinib) Efficacy in Lung Cancer
Lorviqua, also known by its generic name lorlatinib, is a medication specifically approved for the treatment of anaplastic lymphoma kinase (ALK)-positive metastatic non-small cell lung cancer (NSCLC) in patients who have progressed on prior ALK inhibitors. As a third-generation ALK inhibitor, lorlatinib has shown significant efficacy in overcoming resistance to first and second-generation ALK inhibitors. Clinical trials have demonstrated that lorlatinib is effective in patients with ALK-positive NSCLC, including those with central nervous system (CNS) metastases, which is a common complication in lung cancer and a significant challenge in treatment.
In clinical studies, lorlatinib has shown a high objective response rate (ORR) in patients with ALK-positive metastatic NSCLC, with responses observed in both systemic disease and CNS lesions. The duration of response and progression-free survival with lorlatinib have also been noteworthy, offering a valuable option for patients who have limited treatments available due to resistance or intolerance to earlier ALK inhibitors. The efficacy of lorlatinib highlights its role as a targeted therapy that can provide meaningful clinical benefits in a specific subset of lung cancer patients.
Enhertu (fam-trastuzumab deruxtecan-nxki) Efficacy in Lung Cancer
Enhertu, with the generic name fam-trastuzumab deruxtecan-nxki, is an antibody-drug conjugate that combines trastuzumab, a HER2-targeting antibody, with a cytotoxic topoisomerase inhibitor. Although initially developed and approved for HER2-positive breast cancer, Enhertu has also shown promising efficacy in HER2-mutant non-small cell lung cancer (NSCLC). This off-label use is based on the recognition that HER2 mutations are actionable targets in a subset of NSCLC patients.
In clinical trials, Enhertu has demonstrated significant antitumor activity in patients with HER2-mutant NSCLC. The ORR and disease control rate in these studies have been encouraging, suggesting that Enhertu can provide a new treatment avenue for patients with this specific molecular alteration in lung cancer. The duration of response and progression-free survival data further support the potential role of Enhertu as an effective treatment for patients with HER2-mutant NSCLC. As research continues, Enhertu may become an important addition to the targeted therapy options available for lung cancer patients with HER2 mutations.
Regulatory Agency Approvals
Lorviqua
Enhertu
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If Lorviqua or Enhertu are not approved or available in your country (e.g. due to supply issues), you can access them via Everyone.org.
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