Takamatsu-shi, Japan
Takamatsu-shi, Japan

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Nishina T.,National Hospital Organization Shikoku Cancer Center | Moriwaki T.,University of Tsukuba | Shimada M.,Tokushima University | Higashijima J.,Tokushima University | And 16 more authors.
Clinical Colorectal Cancer | Year: 2015

Background: We previously reported that uracil-tegafur with oral leucovorin (UFT/LV) treatment for elderly patients (aged ≥ 75 years) was well-tolerated in a phase II study. In the present study, the efficacy and safety of a modified (1-week shorter administration period) UFT/LV schedule combined with bevacizumab for a similar population are reported. Patients and Methods: The present study was a single-arm, open-label, multicenter, cooperative group clinical trial. The key eligibility criteria included age ≥ 75 years, Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1, first-line chemotherapy, measurable lesions, and preserved organ function. Patients received UFT 300 mg/m2/d and LV 75 mg/d on days 1 to 21 and intravenous bevacizumab 5 mg/kg on days 1 and 15. Treatment was repeated every 28 days. The primary endpoint was progression-free survival (PFS), and the secondary endpoints were the objective response rate (ORR), overall survival (OS), and safety. Results: Of the 55 patients enrolled from 15 Japanese institutions, 52 eligible patients were evaluated. Their median age was 80 years (range, 75-87 years), and 73% had an ECOG performance status of 0. The median PFS was 8.2 months (95% confidence interval [CI], 6.2-10 months). The ORR was 40% (95% CI, 27%-55%). The median OS was 23 months (95% CI, 12-33 months). The most common grade 3 and 4 treatment-related adverse events were hypertension (12%), fatigue (8%), anemia (8%), nausea (6%), and diarrhea (6%). Treatment-related death occurred in 2 patients. Conclusion: UFT/LV (3 weeks of therapy and 1 week without) combined with biweekly bevacizumab is a tolerable and effective treatment option for elderly patients (aged ≥ 75 years) with metastatic colorectal cancer. © 2015 Elsevier Inc.


Matsumoto T.,National Hospital Organization Shikoku Cancer Center | Nishina T.,National Hospital Organization Shikoku Cancer Center | Mizuta M.,Mitoyo General Hospital | Tsuji A.,Kochi Health science Center | And 7 more authors.
International Journal of Clinical Oncology | Year: 2014

Background: Oral uracil-tegafur and leucovorin (UFT/LV) therapy for elderly patients with metastatic colorectal cancer (mCRC) requires careful handling in Western countries because of a high incidence (≥20 %) of grade 3 diarrhea. However, its efficacy and safety for elderly Asian patients have not been investigated. Methods: In this multicenter cooperative phase II study, the eligibility criteria were: age of 75 years or older, no prior chemotherapy, and histologically confirmed colorectal cancer with one or more measurable lesions. UFT 300 mg/m2/day and LV 75 mg/day were administered orally for 28 days followed by a 7-day rest period. Results: Twenty-one patients were enrolled in this study (prior to study termination after approval of bevacizumab), and all patients were eligible for efficacy and safety analysis. The median age was 79 years (range, 75-83 years). The majority of patients (95 %) had ECOG Performance Status 0 or 1. The overall response rate was 33 % (95 % confidence interval [CI], 18-53 %). The median progression-free and overall survivals were 5.3 months (95 % CI 4.0-7.9 months) and 18 months (95 % CI 13-21 months), respectively. Grade 3 or greater adverse events included anorexia (10 %), diarrhea (10 %), and leukopenia (5 %). These results were compatible with those seen in Japanese patients in a previous bridging study between Japan and the US, in which patients under 75 years old were evaluated. Conclusions: UFT/LV therapy was safe and feasible in elderly Japanese patients with mCRC, and further study of UFT/LV therapy in combination with bevacizumab is warranted. © 2014 Japan Society of Clinical Oncology.


Oshima M.,Kagawa University | Okano K.,Kagawa University | Muraki S.,Social Insurance Ritsurin Hospital | Haba R.,Kagawa University | And 4 more authors.
Annals of Surgery | Year: 2013

OBJECTIVE:: The goal of this retrospective study was to clarify the clinical implications of the status of the 3 major genes (CDKN2A/p16, TP53, and SMAD4/DPC4). BACKGROUND:: Recent whole-exome sequencing had shown that the landscape of the pancreatic ductal adenocarcinoma (PDAC) genome is notable for 4 frequently mutated genes (KRAS, TP53, CDKN2A/p16, and SMAD4/DPC4). METHODS:: We determined immunohistochemically the status of TP53, CDKN2A/p16, and SMAD4/DPC4 among the 4 genes because the KRAS gene is mutated in virtually all PDAC patients, and analyzed relationships with clinicopathological findings, including survival and patterns of disease progression, in 106 patients with PDAC undergoing radical surgery. RESULTS:: Abnormal immunolabeling of p53 was detected in 81.1% of PDACs and was significantly associated with tumor dedifferentiation (P = 0.022) and the presence of locoregional recurrence (P = 0.020). Loss of p16 and Smad4/Dpc4 immunolabeling was identified in 67.0% and 60.4%, respectively. Loss of p16 immunolabeling was associated with lymphatic invasion (P = 0.012) and postoperative widespread metastases (P < 0.001). A significant correlation was found between Smad4/Dpc4 immunolabeling and tumor size (P = 0.006), lymphatic invasion (P = 0.033), and lymph node metastasis (P = 0.006). Interestingly, all of the 6 patients demonstrating 5-year survival had intact SMAD4/DPC4. Kaplan-Meier survival analysis showed that lymph node metastasis (P = 0.001), lymphatic invasion (P = 0.008), the tumor (T) factor (T3 vs. T1/T2, P = 0.004), loss of p16 immunolabeling (P = 0.029), and loss of Smad4/Dpc4 immunolabeling (P < 0.001) were significantly associated with shorter overall survival. Multivariate analysis revealed that loss of Smad4/Dpc4 immunolabeling was an independent and significant poor prognostic factor for overall and disease-free survival. On analysis of combinations of the status of these 3 genes, increasing number of alterations reflected poorer survival. CONCLUSIONS:: Genetic alterations of these 3 genes and their accumulation are strongly associated with malignant behavior of PDAC. Their immunohistochemical assessment at the time of diagnosis may provide a new prognostic tool, assisting in deciding optimal therapeutic strategies for patients. Copyright © 2013 Lippincott Williams & Wilkins.


Okano K.,Kagawa University | Oshima M.,Kagawa University | Yachida S.,Kagawa University | Yachida S.,National Cancer Center Research Institute | And 10 more authors.
Journal of Surgical Oncology | Year: 2014

Background Carcinoma of the ampulla of Vater is uncommon. This study aimed to clarify predictors of survival for ampullary adenocarcinoma and to identify characteristics of its two major pathological subtypes. Methods Medical records were reviewed for 86 patients who underwent curative resection for ampullary adenocarcinoma between 2000 and 2012 at 12 principal hospitals in Kagawa, Japan. Results Resection was most common among 75-79-year-old patients. Actuarial 1-, 3-, and 5-year postoperative survival rates for ampullary adenocarcinoma were 90%, 72.3%, and 69.1%, respectively. Preoperative biliary drainage; serum CA19-9 and total bilirubin levels; pathological grade; perineural, vascular, pancreatic, and duodenal invasion; nodal metastasis; UICC-T stage; and pancreatobiliary subtype were predictors of poor survival. An elevated serum CA19-9 level; an elevated total bilirubin level; lymphatic, vascular, perineural, and pancreatic invasion; and advanced overall tumor stage were more common in patients with pancreatobiliary-type tumors than in patients with intestinal-type tumors. Additionally, pathologic subtype analysis showed that each subtype had distinct prognostic factors. Conclusions Preoperative elevated serum CA19-9 and total bilirubin levels are prognostic factors for ampullary adenocarcinoma, and are both associated with pancreatobiliary-type tumors. Surgeons should be aware of these factors because pancreatobiliary-type adenocarcinoma is aggressively invasive and is associated with poor survival. © 2014 Wiley Periodicals, Inc.


Muraoka T.,Kagawa University | Murao K.,Kagawa University | Imachi H.,Kagawa University | Kikuchi F.,Kagawa University | And 9 more authors.
Internal Medicine | Year: 2011

A 17-year-old Japanese man was referred to our hospital because of highly elevated serum levels of creatine kinase (CK) and transaminases. On admission, the proximal muscles of the lower extremities were found to be predominantly affected, and a score of 3/5 was obtained on Medical Research Council (MRC) scale. Muscular atrophy was evident and Gowers' sign was positive. His functional vital capacity (FVC) was markedly reduced. The results of the third edition of the Wechsler Adult Intelligence Scale (WAIS-III) indicated impairment of the patient's intelligence. Muscle biopsy showed scattered intracytoplasmic vacuoles with basophilic amorphous materials inside which were strongly stained by both periodic acid Schiff (PAS) and acid phosphatase. Biochemical analysis of the muscle tissue confirmed the diagnosis of GSDII because the glucosidase activity was 1.0 nmol/4 MU/mg/30 min (control range, 7.3 ± 2.2). Genetic analysis revealed a novel compound heterozygous missense mutation in GAA-c.1814 G >A (p.Gly605Asp) and c.1846 G >A (p.Asp616Asn) both in exon 13. © 2011 The Japanese Society of Internal Medicine.


Sato S.,Kagawa University | Hirooka K.,Kagawa University | Baba T.,Kagawa University | Mizote M.,Kagawa University | And 4 more authors.
Journal of Ocular Pharmacology and Therapeutics | Year: 2011

Purpose: The aim of this study was to evaluate the efficacy and safety of bimatoprost in Japanese patients with normal-tension glaucoma (NTG) who showed insufficient response to latanoprost. Methods: A prospective, nonrandomized study was conducted in patients with NTG, with ≤20% intraocular pressure (IOP) decrease from pretreatment baseline with latanoprost monotherapy who had been switched to bimatoprost. The IOP was measured at 4, 8, and 12 weeks after the switch to bimatoprost. In 12 weeks after the switch to bimatoprost, efficacy and safety were evaluated. Results: Postswitch to bimatoprost, IOP was significantly reduced at every visit. Bimatoprost produced significantly greater mean% IOP reduction rate from pretreatment than that of latanoprost at week 12 (P<0.01). There was a significant correlation between% IOP reduction of bimatoprost and that of latanoprost (Pearson r 2=0.374; P=0.007). No significant difference was observed in the mean scores of conjunctival hyperemia and corneal epithelial disorder between bimatoprost-treated eyes and latanoprost-treated eyes. Conclusions: Significant additional IOP lowering was achieved by switching to bimatoprost in Japanese patients with NTG with insufficient response to latanoprost. Bimatoprost treatment was safe and well tolerated. © 2011 Mary Ann Liebert, Inc.


Osaka R.,Social Insurance Ritsurin Hospital | Osaka R.,Kagawa University | Fujimura T.,Social Insurance Ritsurin Hospital | Fukuda K.,Kagawa University | And 5 more authors.
Japanese Journal of Clinical Ophthalmology | Year: 2013

Purpose: To report early changes in retinal sensitivity following vitreous surgery for idiopathic epiretinal membrane. Cases and Method: This study was made on 29 eyes of 26 patients who received 25-G vitreous surgery for epiretinal membrane during 5 months. Retinal sensitivity within 20 degrees from the fixating point was measured using Macular Integrity Assessment® (Topcon) before and after surgery. Visual acuity was evaluated as logMAR. Results: Retinal sensitivity at 89 measured points averaged 21.1 dB before surgery, 22.6 dB one month and 23.4 dB 3 months after surgery. The difference between values before and 3 months after surgery was significant. Visual acuity averaged 0.42, 0.20 and 0.17 respectively. It improved significantly after one month of surgery. Conclusion: Retinal sensitivity improved after 3 months of vitreous surgery for idiopathic epiretinal membrane.


Hirata T.,Social Insurance Ritsurin Hospital | Ohashi Y.,Social Insurance Ritsurin Hospital
Nishinihon Journal of Urology | Year: 2011

A 50-year-old woman was referred to our hospital because of recurrent pyelonephritis and hydronephrosis of the right kidney. Abdominal CT showed dilation and calcification of the right renal calyx, and we suspected renal tuberculosis. Gaffky scale of urine was positive, and we diagnosed the patient as suffering from renal tuberculosis. Right nephrectomy was performed following 6 months anti-tuberculosis chemotherapy. The patient complained of persistent right lower abdominal pain from the third postoperative day. Abdominal CT showed inflammatory hypertrophy of the ureteral stump, and we made a diagnosis ureteritis of the ureteral stump. The symptom disappeared following preservative medication therapy.


Takeuchi H.,Social Insurance Ritsurin Hospital | Hori S.,Social Insurance Ritsurin Hospital | Fujita T.,Social Insurance Ritsurin Hospital | Mori S.,Social Insurance Ritsurin Hospital | And 2 more authors.
Japanese Journal of Cancer and Chemotherapy | Year: 2013

69-year-old woman underwent resection of a tumor diagnosed as squamous cell carcinoma of the anal canal. After 4 years and 5 months, computed tomography (CT) showed abdominal and pelvic lymph node swelling. Chemotherapy consisting of biweekly docetaxel (35 mg/m2)+nedaplatin (35 mg/m2) achieved a partial response. After 20 cycles of chemotherapy, the patient was treated with radiotherapy because of a pelvic lymph node recurrence. Since then, no recurrence has occurred for 16 months. The adverse event was Grade 2 in leucopenia and neutropenia. This case suggested that chemoradiotherapy consisting of docetaxel+nedaplatin may be effective and safe for treating anal canal squamous cell carcinoma.


Takeuchi H.,Social Insurance Ritsurin Hospital | Hori S.,Social Insurance Ritsurin Hospital | Fujita T.,Social Insurance Ritsurin Hospital | Mori S.,Social Insurance Ritsurin Hospital | And 2 more authors.
Japanese Journal of Gastroenterological Surgery | Year: 2013

We report a case of long-term surviving pancreatic neuroendocrine tumor with multiple liver recurrence 8 years after initial surgery, treated with recurrent surgical resection. A 51-year-old man underwent distal pancreatectomy for nonfunctioning pancreatic neuroendocrine tumor (pNET) G2 of Stage II, 11 years previously. On follow-up, abdominal computed tomography showed multiple liver tumors. Multiple liver metastases of pNET was diagnosed, and a central bisegmentectomy of the liver was performed. Histologically, mitotic counts and Ki-67 labeling indices were less than 1/10 high power fields (HPF) and 8%. A diagnosis of multiple liver recurrence of pNET G2 was given. He is alive without recurrence 3 years after hepatic resection. Liver metastases of pNET should be treated with aggressive radical surgery to achieve complete tumor resection and potential for long-term survival. © 2013 The Japanese Society of Gastroenterological Surgery.

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