Publications by authors named "Stephanie Heon"

Purpose: This retrospective study was undertaken to investigate the impact of initial gefitinib or erlotinib (EGFR tyrosine kinase inhibitor, EGFR-TKI) versus chemotherapy on the risk of central nervous system (CNS) progression in advanced non-small cell lung cancer (NSCLC) with EGFR mutations.

Experimental Design: Patients with stage IV or relapsed NSCLC with a sensitizing EGFR mutation initially treated with gefitinib, erlotinib, or chemotherapy were identified. The cumulative risk of CNS progression was calculated using death as a competing risk.

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Despite surgical resection, patients with early-stage (I to IIIA) non-small cell lung cancer (NSCLC) are at considerable risk of recurrence and death from their lung cancer. In recent years, multiple, large, randomized trials assessing the efficacy of adjuvant chemotherapy for resected NSCLC have been reported. Three of 6 trials with 300 or more patients with early-stage NSCLC have demonstrated that adjuvant cisplatin-based chemotherapy can significantly improve 5-year survival in carefully selected patients with resected NSCLC.

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Article Synopsis
  • Anaplastic lymphoma kinase (ALK) tyrosine kinase inhibitors, like crizotinib, are effective for treating ALK-translocated cancers but can lead to drug resistance.
  • Researchers identified two resistance mechanisms in a crizotinib-treated non-small cell lung cancer (NSCLC) patient, including a unique ALK mutation and concurrent activation of the epidermal growth factor receptor (EGFR) signaling.
  • Combining ALK and EGFR inhibitors showed the most effective results, indicating that targeting both pathways could improve treatment for certain NSCLC patients with these resistance mechanisms.
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Purpose: Gefitinib and erlotinib can penetrate into the central nervous system (CNS) and elicit responses in patients with brain metastases (BM) from non-small cell lung cancer (NSCLC). However, there are incomplete data about their impact on the development and control of CNS metastases.

Experimental Design: Patients with stage IIIB/IV NSCLC with somatic EGFR mutations initially treated with gefitinib or erlotinib were identified.

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Doxorubicin (DOX), an anticancer drug, causes a dose-dependent cardiotoxicity. Some evidence suggests that female children have an increased risk for DOX-mediated cardiac damage. To determine whether the iron chelator dexrazoxane (DXR) could reduce DOX-induced cardiotoxicity in the young, we injected day 10 neonate female and male rat pups with a single dose of saline or DOX, DXR, or DXR + DOX (20:1).

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