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RESEARCH PRODUCT
Fludarabine combined with radiotherapy in patients with locally advanced NSCLC lung carcinoma: a phase I study
Katinka LedererHans ChristiansenFrank GriesingerOlivier PradierMirko NitscheHeinz SchmidbergerHeinz Schmidbergersubject
Oncologymedicine.medical_specialtyCancer ResearchRadiation-Sensitizing AgentsLung Neoplasmsmedicine.medical_treatmentAntineoplastic AgentsNSCLCMedicine & Public Health; Hematology; Oncology; Internal Medicine; Cancer Research03 medical and health sciencesFludarabine0302 clinical medicineInternal medicineCarcinoma Non-Small-Cell LungCarcinomaMedicineCombined Modality TherapyHumansConcurrent fludarabine and radiotherapy030304 developmental biologyNeoplasm Staging0303 health sciencesOriginal PaperHematologyNucleoside analoguebusiness.industryRadiotherapy DosageGeneral MedicineAdenine nucleosideRadiochemotherapy in stage III NSCLC locally advanced inoperable NSCLCNucleoside analoguemedicine.diseaseCombined Modality Therapy3. Good healthFludarabinerespiratory tract diseasesClinical trialRadiation therapyOncology030220 oncology & carcinogenesisRadiotherapy phase I studybusinessFludarabine; NSCLC; Nucleoside analogue; Concurrent fludarabine and radiotherapy; Radiotherapy phase I study; Radiochemotherapy in stage III NSCLC locally advanced inoperable NSCLCVidarabinemedicine.drugdescription
Abstract Background and purpose Fludarabine is an adenine nucleoside analogue that has significant activity in hematological malignancies and has shown promising activity in combination with radiation in preclinical solid tumor models. We designed a phase I trial exploring concurrent fludarabine and radiotherapy in patients with advanced non-small cell lung cancer (NSCLC) to determine the maximum tolerated dose (MTD) of fludarabine given with concurrent irradiation. Materials and methods Thirteen patients with stage IIIB NSCLC received thoracic irradiation of 60 Gy. Fludarabine was administered during the 5th and 6th week of radiotherapy. Doses started at 10 mg/m2 per day and increased by steps of 3 mg/m2 per day. Results At a daily dose of 16 mg/m2, one out of six patients developed a grade 4 leukopenia, and one a grad 3 pneumonitis. Further grade III toxicity was not observed. The dose of 13 mg/m2 was identified as the MTD. All patients developed a fludarabine dose-dependent lymphocytopenia. Conclusion Fludarabine can be safely administered concurrently with radiation at a daily dose of 13 mg/m2 during the final 2 weeks of radiotherapy. Further prospective clinical studies are required to establish the potential role of concurrent fludarabine and radiotherapy in the treatment of locally advanced inoperable NSCLC.
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2011-12-06 |