Lung Cancer

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The costs and relative cost-effectiveness of different treatments for common illnesses are an increasing concern. New treatments for advanced non-small-cell lung cancer are having an impact. However, these treatments vary markedly in their direct financial costs, toxicity, and quality-of-life profiles. Direct comparisons between most combination regimens are not yet completed. Vinorelbine (Navelbine) is the first new agent approved in the United States for the treatment of metastatic non-small-cell lung cancer in more than a decade. We previously reported results of a post-hoc economic analysis that compared the anticipated cost-effectiveness of three regimens used to treat non-small-cell lung cancer (vinorelbine alone versus vinorelbine plus cisplatin [Platinol] versus vindesine plus cisplatin, the assumed standard treatment in Europe). Results showed that vinorelbine plus cisplatin was the most effective regimen. Using vinorelbine alone as a baseline, vinorelbine plus cisplatin added 56 days of life at an additional cost of $2,700, resulting in a cost-effectiveness ratio of $17,700 per year of life gained. Similarly, vindesine plus cisplatin added 19 days of life at a cost of $1,150, or $22,100 per year of life gained. Compared to vindesine plus cisplatin, vinorelbine plus cisplatin added 37 days of life at a cost of $1,570, or $15,500 per year of life gained. We conclude that the incremental cost-effectiveness of the vinorelbine plus cisplatin regimen was less than most commonly accepted medical interventions. If vinorelbine is preferred because of its favorable toxicity profile, the additional effectiveness of cisplatin added substantial efficacy at an acceptable cost.[ONCOLOGY(Suppl 4):14-17, 1998]

Le Chevalier and colleagues have reported results of a randomized controlled clinical trial comparing vinorelbine alone, versus vinorelbine combined with cisplatin, versus standard treatment consisting of vindesine and cisplatin in the treatment of patients with advanced non-small-cell lung cancer (NSCLC). Data on survival in the three study arms and estimates of the resources used to treat these patients were extracted from the publication and inserted into Statistics Canada’s POpulation HEalth Model (POHEM).

BUFFALO, NY-Photofrin (porfi-mer sodium), a photosensitizer used in photodynamic therapy (PDT), has received FDA approval for use in early-stage microinvasive lung cancer. The agent, manufactured by QLT Photo-Therapeutics, was approved in 1995 for palliative use in esophageal cancer.

MELVILLE, NY-Docetaxel (Taxo-tere) is becoming increasingly important for the second-line treatment of advanced non-small-cell lung cancer (NSCLC), said Jeffrey Crawford, MD, director of Clinical Research, Duke Comprehensive Cancer Center, Duke University.

Lung cancer is the leading cause of death due to cancer in the United States, and approximately 178,100 new cases were estimated to occur last year. Small-cell lung cancer (SCLC) accounts for approximately 17% to 25% of all lung cancers. Due to its aggressive nature and rapid proliferation rate, small-cell lung cancer is usually widespread at diagnosis. Therefore, chemotherapy is the cornerstone of therapy for this disease. Cisplatin (Platinol) is an active chemotherapeutic agent used to treat small-cell lung cancer, but its toxicity, including nausea and vomiting, nephrotoxicity, neurotoxicity, and ototoxicity, has led to the investigation of combination regimens with different toxicity profiles. Carboplatin (Paraplatin), a derivative of cisplatin, has far less nonhematologic toxicity, although myelosuppression may be slightly greater than that observed with cisplatin. The reduced toxicity and equivalent efficacy of carboplatin have resulted in the increased use of carboplatin-based regimens to treat small-cell lung cancer. Phase I and II trials of carboplatin as single-agent treatment for small-cell lung cancer resulted in overall response rates of approximately 60% for previously untreated patients and 17% for those who had received prior therapy. New combination chemotherapy regimens that include carboplatin may improve survival in patients with small-cell lung cancer and potentially cure those patients with limited disease. Further investigation of carboplatin and other new agents is warranted.[ONCOLOGY 12(Suppl 2):36-43, 1998]

Prophylactic cranial irradiation (PCI) is being reintroduced into multimodality treatment protocols of patients with small-cell lung cancer (SCLC). The history of its use brings interesting insights into clinical evaluations of treatment strategies and design of relevant and informative trials. The critical issues of effectiveness and overall health gains of prophylactic cranial irradiation have been addressed in a series of recently completed clinical trials. These trials tested prophylactic cranial irradiation in small-cell lung cancer patients achieving good response to induction therapy and confirmed the ability of standard prophylactic cranial irradiation schedules to significantly reduce the lifetime risk of brain metastases. A subset of these trials evaluated neurotoxicity in a formal and prospective manner. No sustained or significant detriment in neuropsychometric function could be linked to the use of prophylactic cranial irradiation. In addition, all the large trials have shown a consistent survival advantage in favor of the prophylactic cranial irradiation arm. None of the individual sample sizes were large enough to statistically confirm this survival benefit, but a meta-analysis is in progress and will report on this aspect of evidence shortly. Issues that remain to be answered are the optimal dose and schedule of prophylactic cranial irradiation as well as the timing of this administration. These questions form the nucleus of the next generation of collaborative trials that are being designed.[ONCOLOGY 12(Suppl 2):19-24, 1998]

Although the need to combine thoracic radiotherapy with systemic chemotherapy in the curative treatment of limited small-cell lung cancer is now widely acknowledged, there is substantial disagreement on how best to do this. This paper reviews radiotherapeutic factors but also highlights the important interactions that occur with some classes of chemotherapeutics. Studies examining variables like dose and volume are clearly in order. Concurrent therapy given early has been adopted throughout most of the world, except Europe. The reasons for this are explored. Multiple studies are now showing excellent results with fewer total cycles of chemotherapy. Integrationof newer drugs is another challenge for clinical investigators at the close of this century. [ONCOLOGY 12(Suppl 2):15-18, 1998]

We report here the preliminary results of a large phase II multicenter study done in the community setting, using paclitaxel (Taxol) (given by 1-hour infusion) plus carboplatin (Paraplatin) to treat patients with advanced non-small-cell lung cancer (NSCLC). In this study, 155 chemotherapy-naive patients with stage IIIB, stage IV, or recurrent metastatic non-small-cell lung cancer received the two drugs in 21-day cycles. Paclitaxel 225 mg/m² was given by 1-hour intravenous infusion followed immediately by carboplatin at a targeted area under the concentration-time curve of 6.0 (calculated according to the Calvert formula). Colony-stimulating factors were not used routinely. Objective responses occurred in 53 of 155 patients (34%) (53 of 144 [36%] evaluable patients) including three complete responses and 50 partial responses. Fifty-two other patients had stable disease at initial reevaluation. The median survival among all 155 patients was 8 months; the 1-year survival rate was 42%, and the 2-year survival rate was 20%. Leukopenia and cumulative peripheral neuropathy occurred consistently but rarely were severe or affected the course of therapy. One patient died due to sepsis. Other grade 3 and grade 4 toxicities were uncommon. This paclitaxel-carboplatin combination chemotherapy appears to be a relatively convenient, safe, and active regimen in advanced non-small-cell lung cancer.[ONCOLOGY 12(Suppl 2):71-73, 1998]

Topotecan hydrochloride (Hycamtin), as a single agent or in combination with other agents, may offer a new treatment option for people suffering from small-cell lung cancer, according to results from five clinical trials reviewed at the 15th

BETHESDA, Md-A leading medical oncologist laments the refusal of many physicians to even discuss the option of adjuvant chemotherapy with patients who have operable lung cancer. Paul Bunn, Jr., MD, director of the University of Colorado Cancer Center, noted that the first drugs used in lung cancer patients, alkylating agents, actually reduced survival time.