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Topotecan single agent

Abstract: Phase II study of topotecan in patients with advanced non-small-cell lung cancer previously untreated with chemotherapy.

PURPOSE: This study was designed to assess the anti-tumor activity of topotecan (TPT) in patients with advanced non-small-cell lung cancer (NSCLC) previously untreated with chemotherapy. PATIENTS AND METHODS: Patients with stage IIIB or IV NSCLC with measurable disease in nonradiated fields were eligible. Other eligibility criteria were Zubrod performance status (PS) < or = 2 and adequate renal and liver function. TPT was administered at a dose of 1.5 mg/m2/d for 5 days over 30 minutes every 21 days. Of 48 registered patients, 40 were fully assessable. Nineteen patients had adenocarcinoma (AD), 14 squamous carcinoma (SCC), and seven poorly differentiated carcinoma. RESULTS: Six patients (15%) achieved a partial remission (PR) (durations: 8, 14, 18, 28, 56, and 61 weeks) and four patients a minor response; 10 patients had stable disease and 20 patients progressive disease. The PR rate was 36% (five of 14 patients) in patients with SCC versus 4% (one of 26 patients) in those with other histologies (P = .014). The overall median survival time was 38 weeks and 30% of patients were alive at 1 year. Grade 3 to 4 granulocytopenia and thrombocytopenia occurred after 76% and 10% of courses administered, respectively. No grade 3 to 4 nonhematologic toxicities were observed. Grade 1 or 2 nonhematologic toxicities consisted of nausea (46% and 5%), vomiting (31% and 7%), and fatigue (53% and 16%). CONCLUSION: TPT at the dose and schedule used has moderate antitumor activity in NSCLC; its activity is mostly limited to patients with SCC. TPT is well tolerated, with myelosuppression of short duration being the most common and limiting toxicity.

References

Perez-Soler R, Fossella FV, Glisson BS, Lee JS, Murphy WK, Shin DM, Kemp BL, Lee JJ, Kane J, Robinson RA, Lippman SM, Kurie JM, Huber MH, Raber MN, Hong WK. Phase II study of topotecan in patients with advanced non-small-cell lung cancer previously untreated with chemotherapy. J Clin Oncol. 1996 Feb;14(2):503-13.

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Regimen

Topotecan....... 1.5 mg / M2 / d IV (over 30 min) days 1 - 5
FREQUENCY every 21 days


     
  Summary  
  Overall Response Rate  
  Progression Free Survival  
  Overall Survival  
  Toxicity  
     

Article reviewed by:

Dr. Tamer Fouad, M.D.

 

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