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Yukari Kamiyama

Publications and source records attributed to Yukari Kamiyama.

11 recordsLinked to original sources
PubMed2006

Phase II study of weekly chemotherapy with paclitaxel and gemcitabine as second-line treatment for advanced non-small cell lung cancer after treatment with platinum-based chemotherapy.

PURPOSE: We evaluated the tolerability and activity of the combination of weekly paclitaxel (PTX) and gemcitabine (GEM) in second-line treatment of advanced non-small cell lung cancer (NSCLC) after treatment with platinum-based chemotherapy. PATIENTS AND METHODS: PTX (100 mg/m(2)) and GEM (1,000 mg/m(2)) were administered to patients with previous treated NSCLC on days 1 and 8 every 3 weeks. RESULTS: A total of 40 patients (performance status 0/1/2, 7/27/6 pts) were enrolled. The response rate was 32.5% (95% confidence interval: 18.0-47.0%). The median survival time was 41.7 weeks (95% confidence interval: 28.5-54.7 weeks). The median time to disease progression was 19 weeks. Hematological toxicities (grade 3 or 4) observed included neutropenia in 60%, anemia in 15%, and thrombocytopenia in 12.5% of patients. Non-hematological toxicities were mild, with the exception of grade 3 diarrhea, pneumonitis, and rash in one patient each. There were no deaths due to toxicity. CONCLUSION: The combination of weekly PTX and GEM is a feasible, well-tolerated, and active means of second-line treatment of advanced NSCLC.

Adult↗
PubMed2006

Pilot phase II study of weekly chemotherapy with paclitaxel and carboplatin for refractory or relapsed small-cell lung cancer.

PURPOSE: The safety and efficacy of weekly chemotherapy with paclitaxel and carboplatin for the treatment of patients with refractory or relapsed small-cell lung cancer (SCLC) were evaluated. PATIENTS AND METHODS: Paclitaxel (100 mg/m(2)) and carboplatin (with a target area under the concentration versus time curve of 2 mg min/ml using the Calvert formula) were administered to patients with previously- treated SCLC on days 1 and 8 at every 3-4 weeks. RESULTS: A total of 29 patients (pts) [male/female, 26/3 pts; median age 62.7 years (43-74); performance status 0/1/2, 9/10/10 pts] were enrolled between March 2000 and June 2002. The mean number of cycles administered per pt was 3 (1-7). The overall response rate was 69% (95% confidence interval 52-86%), and 83% (15/18) in sensitive pts and 45% (5/11) in refractory pts (P<0.01). The overall median survival time was 29.6 weeks with a 1-year survival rate of 37% [34.1 weeks in sensitive pts and 23.1 weeks in refractory pts (P=0.085), 46.9 weeks in PS 0-1 and 16.3 weeks in PS 2 (P<0.001)]. The median time to progressive disease was 16.4 weeks [21.7 weeks in sensitive pts and 15.3 weeks in refractory pts (P=0.32)]. Hematologic toxicities observed included grade >or=3 neutropenia in 55%, grade >or=3 anemia in 36%, and grade >or=3 thrombocytopenia in 3%. Non-hematologic toxicities were mild except for grade 3 diarrhea in three pts and grade 3 pneumonitis in one pt. CONCLUSION: Weekly chemotherapy with paclitaxel and carboplatin was well- tolerated and gave a high-response rate in pts with refractory or relapsed small-cell lung cancer.

Adult↗
PubMed2005

A phase II study of docetaxel and infusional cisplatin in advanced non-small-cell lung cancer.

BACKGROUND: To evaluate the efficacy and safety of combination chemotherapy of cisplatin (5-day continuous infusion) and docetaxel for the treatment of previously untreated patients with advanced non-small-cell lung cancer (NSCLC). MATERIALS AND METHODS: Eligible patients had an ECOG performance status of 0-2 with measurable NSCLC. Patients received continuous infusion cisplatin 20 mg/m2/day on 5 days and bolus docetaxel 60 mg/m2/day (day 1; PiD therapy) at a 4-week interval. RESULTS: Forty-three patients were enrolled. The mean number of cycles administered per patient was 2, and ranged from 1 to 4. The response rate was 49% (95% confidence interval, 33.9-63.8%). The median survival time was 47 weeks and the 1-year survival rate was 47%. The major toxic effects were grade 3 or 4, neutropenia (88%), leukopenia (81%), thrombocytopenia (14%) and anemia (42%). There were no treatment-related deaths. CONCLUSION: PiD therapy was a well-tolerated and active regimen for patients with advanced NSCLC. The major toxicity was neutropenia.

Adult↗
PubMed2005

Risk of pleural recurrence after needle biopsy in patients with resected early stage lung cancer.

BACKGROUND: Concerning the complications resulting from percutaneous needle biopsy (PNB), although cases of tumor seeding into the needle track have occasionally been reported, there were only two cases of pleural recurrences to date. The aim of this study was to elucidate the real risk of pleural recurrence after needle biopsy in patients with resected early stage lung cancer. METHODS: Between 1986 and 2000, 335 patients with stage I nonsmall cell lung cancer underwent complete resection of the lung tumor. We retrospectively reviewed their medical records and investigated the relationship between the diagnostic methods used and the cancer recurrence patterns. RESULTS: Preoperative diagnoses were obtained for 290 patients; 220 were diagnosed by bronchoscopy and 66 by PNB. Among the patients without a preoperative diagnosis, 27 were diagnosed by intraoperative needle biopsy and 14 by wedge resection of the lung. Tumors diagnosed by needle biopsy including PNB and intraoperative needle biopsy were smaller and showed less vessel invasion than those diagnosed by other methods (p < 0.01). After surgical resection, 9 patients had pleural recurrence and 1 patient, needle track implantation. Seven of these 10 patients were diagnosed by needle biopsy using 18G cutting type needle. Pleural recurrence or needle track implantation was observed for 8.6% of the patients who underwent a needle biopsy, whereas it was 0.9% for patients who were examined using other diagnostic modalities (p = 0.0009). CONCLUSIONS: Needle biopsy especially using a cutting-type biopsy needle can cause a pleural recurrence in addition to needle track implantation.

Adult↗
PubMed2004

Objective definition and measurement method of ground-glass opacity for planning limited resection in patients with clinical stage IA adenocarcinoma of the lung.

OBJECTIVE: The standard operation for patients with stage IA lung adenocarcinoma is considered to be a lobectomy. Recently, some researchers have reported that patients with tumors showing greater proportions of ground-glass opacity (GGO) at computed tomography (CT) could be candidates for limited resection, because of its less aggressive nature. However, the lack of a precise definition or standard measuring method of GGO prevents its general use as an index for planning limited resection. Therefore, we attempted to define GGO based on CT number and measured it more objectively. METHODS: Between 1998 and 2001, 90 patients with clinical stage IA adenocarcinoma, who underwent standard or intentional limited resection and whose images of chest high-resolution CT were preserved in Digital Imaging and Communications in Medicine (DICOM) format, constituted the study population. The tumor shadow seen on the solid window (WL, -160HU; WW, 2HU) was regarded as the central solid area of the tumor seen on the lung window, and GGO was defined as the whole tumor area with the exception of the central solid area. Each area was measured using Scion Image (Scion Corp., Frederick, MD). We analyzed the relationship between the proportion of GGO and both of pathologic findings and recurrence. RESULTS: Among the 90 tumors, 31 (34.4%) were calculated to have a GGO area greater than or equal to 50%. Of these, 27 (87%) tumors were bronchioloalveolar carcinoma. Lymphatic and vascular invasions, or nodal involvement were found only in patients with a smaller proportion of GGO (<50%) (P < 0.05). During the follow-up period (median 36 months), recurrences occurred in eight patients who were diagnosed as having tumors showing smaller proportion of GGO (<50%). CONCLUSIONS: Tumors with a greater proportion of GGO measured by our method are thought to have a less invasive nature. Our objective measuring method of GGO could be useful for future multicenter trials to elucidate the value of limited resection for clinical stage IA adenocarcinoma based on the proportion of GGO.

Adenocarcinoma↗
PubMed2003

Phase II study of the combination of vinorelbine and cisplatin in advanced non-small-cell lung cancer.

PURPOSE: To evaluate the efficacy and safety of combination chemotherapy with cisplatin and vinorelbine for the treatment of previously untreated patients with advanced non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS: Eligible patients were those with measurable NSCLC. They were treated with two or more cycles of a regimen consisting of vinorelbine 25 mg/m(2) on days 1 and 8 and cisplatin 80 mg/m(2) on day 1 every 3 weeks. RESULTS: A total of 45 patients were enrolled. The response rate was 51.1% (23/45; 95% CI 35.8% to 66.3%). The median survival was 286 days with a 1-year survival rate of 40%. The median number of treatment cycles was 2. The major toxic effect was neutropenia of grade 3 or higher (84%). Nonhematological toxicities, including vomiting (62%), were mild (grade 2 or less). There were no treatment-related deaths. CONCLUSION: The high response rate and good tolerability proved this combination therapy to be a safe and effective treatment for advanced NSCLC.

Adult↗
PubMed2003

Preventive effect of Kampo medicine (Hangeshashin-to) against irinotecan-induced diarrhea in advanced non-small-cell lung cancer.

PURPOSE: Kampo medicine Hangeshashin-to (TJ-14) which contains baicalin, a beta-glucuronidase inhibitor, alleviates diarrhea induced by irinotecan (CPT-11). We conducted a randomized comparative trial to investigate whether support with TJ-14 would prevent and control CPT-11-induced diarrhea. METHODS: Of 44 previously untreated patients with advanced non-small-cell lung cancer randomized, 41 (18 TJ-14 group, 23 control group) were available for evaluation. The chemotherapy regimen consisted of a combination of cisplatin and CPT-11. TJ-14 (7.5 g/day) was administered orally. RESULTS: Of the 41 patients, 39 experienced diarrhea. Compared with the control group, the TJ-14 group showed a significant improvement in diarrhea grades ( P=0.044) as well as a reduced frequency of diarrhea grades 3 and 4 (one patient versus ten patients; P=0.018). However, the two groups showed no differences in the frequency of diarrhea or the number of days the symptoms continued. This study was stopped at an interim evaluation. CONCLUSION: TJ-14 was effective in preventing and controlling CPT-11-induced diarrhea.

Adult↗
PubMed2002

Proportion of ground-glass opacity on high-resolution computed tomography in clinical T1 N0 M0 adenocarcinoma of the lung: A predictor of lymph node metastasis.

OBJECTIVE: In patients with clinical T1 N0 M0 lung adenocarcinoma, we investigated whether the proportion of ground-glass opacity area measured on high-resolution computed tomography was valuable for predicting the existence of lymph node metastasis, lymphatic invasion, or vascular invasion. METHODS: Between 1994 and 1999, 111 patients with clinical stage IA adenocarcinoma underwent surgical resection of the lung at our hospital. Of these, 96 patients received high-resolution computed tomography of the chest, and they constituted the study population. The tumors were semiquantitatively classified into 5 groups on the basis of the proportion of ground-glass opacity area to whole tumor shadow on high-resolution computed tomography: group I, 0%; group II, 1% to 25%; group III, 26% to 50%; group IV, 51% to 75%; and group V, 76% to 100%. Correlations of computed tomographic findings, pathologic results of lymph node metastasis and lymphatic and vascular invasion, and the histologic subtype according to the new World Health Organization classification were examined. We also investigated the characteristics of the patients with ground-glass opacity areas on high-resolution computed tomography and their value for predicting lymph node metastasis. RESULTS: Among the 96 patients, 15 (15.6%) had mediastinal lymph node metastases, and 3 (3.1%) had hilar node metastases. Regarding the proportion of the ground-glass opacity area of the tumors, 15 (15.6%) tumors were classified as group V, 11 (11.5%) as group IV, 9 (9.3%) as group III, 22 (22.9%) as group II, and 39 (40.6%) as group I, respectively. Of the 18 patients with lymph node metastases, no patients were found in groups IV and V, 2 (22.2%) were found in group III, 4 (18.2%) were found in group II, and 12 (30.8%) were found in group I (trend P =. 003), respectively. Twenty-six patients classified into groups IV and V also showed neither lymphatic invasion nor recurrence. All the smaller tumors (< or =2.0 cm) in group IV or V were histologically proved to be bronchioloalveolar carcinoma. Adjusted for smoking status and other characteristics, patients without ground-glass opacity on high-resolution computed tomography had a significantly increased risk of concurrent lymph node metastasis compared with those with ground-glass opacity. CONCLUSION: In patients with clinical T1 N0 M0 adenocarcinoma, the proportion of ground-glass opacity area on thin-section computed tomography scans was a strong predictor for tumor aggressiveness and thus could be a useful index for planning limited surgical resection for these patients.

Adenocarcinoma↗
PubMed2002

[Phase II study of combined Vinorelbine (Navelbine) plus cisplatin for advanced non-small cell lung cancer (an interim report)].

A phase II study of a combination therapy with vinorelbine (Navelbine) plus cisplatin was performed using 27 patients with advanced non-small cell lung cancer, to evaluate the efficacy and safety of this therapy. Patients were treated, at 3-week intervals, with two or more courses of a regimen consisting of vinorelbine 25 mg/m2 (days 1, 8) and cisplatin 80 mg/m2 (day 1). The response rate was 48.1% (13/27) (95% confidence interval: 28.7-68.1%). The median number of treatment courses was 2.6. The major toxicity was hematological: 74% of patients had neutropenia of grade 3 or higher that subsided rapidly upon administration of a granulocyte-colony stimulating factor. Non-hematological toxicities were mild, of grade 2 or less: the main symptom was nausea/vomiting (62%), although constipation, eruption, anorexia, peripheral nerve disorders, diarrhea, fever, and other conditions were also observed. In conclusion, the high response rate and good tolerance to this combination therapy warrants further study.

Adult↗
PubMedDate not supplied

Development of a novel computer-aided diagnosis system for automatic discrimination of malignant from benign solitary pulmonary nodules on thin-section dynamic computed tomography.

OBJECTIVES: As an application of the computer-aided diagnosis of solitary pulmonary nodules (SPNs), 3-dimensional contrast-enhanced (CE) dynamic helical computed tomography (HCT) was performed to evaluate temporal changes in the internal structure of nodules to differentiate between benign nodules (BNs) and malignant nodules (MNs). METHODS: There were 62 SPNs (35 MNs and 27 BNs) included in this study. Scanning (2-mm collimation) was performed before and 2 and 4 minutes after CE dynamic HCT. The CT data were sent to a computer, and the pixels inside the nodule were characterized in terms of 3 parameters (attenuation, shape index, and curvedness value). RESULTS: Based on the CT data at 4 (MN: 1.81-27.1, BN: -42.8 to -3.29) minutes after CE-dynamic HCT, a score of 0 or higher can be assumed to indicate an MN. CONCLUSIONS: Three-dimensional computer-aided diagnosis of the internal structure of SPNs using CE dynamic HCT was found to be effective for differentiating between BNs and MNs.

Adult↗