A feasibility study of a peer discussion group intervention for patients with pancreatobiliary cancer and their caregivers.

OBJECTIVES: The purpose of this feasibility study was to examine the impacts of a peer discussion group intervention called "the pancreatobiliary cancer salon" on psychological distress among patients with pancreatobiliary cancer and their caregivers. METHODS: We recruited patients with pancreatic or biliary tract cancer and their caregivers. We conducted a within-group pre-post comparison study. Participants were grouped by the type of cancer and treatment. Each group consisted of four to five patients or caregivers. Hospital staff members facilitated group discussions where participants freely talked for 1 h. We evaluated participants' psychological condition using the Profile of Mood States (POMS) and their impressions of the pancreatobiliary cancer salon. RESULTS: We analyzed data from 42 patients and 27 caregivers who joined the salon for the first time. Thirty-five patients (83.3%) had pancreatic cancer. Thirty-one patients (71.4%) had unresectable pancreatobiliary cancer and 14 patients (33.3%) were being treated with second-line or third-line chemotherapy at the time of the survey. Twenty-two patients (52.4%) participated in the salon within 6 months after diagnosis. Most participating caregivers were the patient's spouse/partner (51.9%) or child (34.6%). Both patients and caregivers experienced high levels of satisfaction with the pancreatobiliary cancer salon. Both patients and caregivers had significantly lower psychological distress as assessed by POMS after the salon. SIGNIFICANCE OF RESULTS: A peer discussion group intervention might be well-received and has potential to benefit for patients with pancreatobiliary cancer and their caregivers.

Simultaneous optimization of limited sampling points for pharmacokinetic analysis of amrubicin and amrubicinol in cancer patients.

AIM: Limited sampling points for both amrubicin (AMR) and its active metabolite amrubicinol (AMR-OH) were simultaneously optimized using Akaike's information criterion (AIC) calculated by pharmacokinetic modeling. METHODS: In this pharmacokinetic study, 40 mg/m(2) of AMR was administered as a 5-min infusion on three consecutive days to 21 Japanese lung cancer patients. Blood samples were taken at 0, 0.08, 0.25, 0.5, 1, 2, 4, 8 and 24 h after drug infusion, and AMR and AMR-OH concentrations in plasma were quantitated using a high-performance liquid chromatography. The pharmacokinetic profile of AMR was characterized using a three-compartment model and that of AMR-OH using a one-compartment model following a first-order absorption process. These pharmacokinetic profiles were then integrated into one pharmacokinetic model for simultaneous fitting of AMR and AMR-OH. After fitting to the pharmacokinetic model, 65 combinations of four sampling points from the concentration profiles were evaluated for their AICs. Stepwise regression analysis was applied to select the sampling points for AMR and AMR-OH to predict the area under the concentration-time curves (AUCs) at best. RESULTS: Of the three combinations that yielded favorable AIC values, 0.25, 2, 4 and 8 h yielded the best AUC prediction for both AMR (R(2) = 0.977) and AMR-OH (R(2) = 0.886). The prediction error for AUC was less than 15%. CONCLUSION: The optimal limited sampling points of AMR and AMR-OH after AMR infusion were found to be 0.25, 2, 4 and 8 h, enabling less frequent blood sampling in further expanded pharmacokinetic studies for both AMR and AMR-OH.

Gender difference in hematological toxicity among lung cancer patients receiving amrubicin monotherapy.

BACKGROUND: Severe hematological toxicity has been frequently observed during amrubicin monotherapy for patients with lung cancer despite the favorable anti-tumor response. The purpose of this retrospective study was to identify pretreatment factors associated with severe hematological toxicity. METHODS: The medical records of lung cancer patients treated with amrubicin monotherapy were reviewed, and univariate and multivariate analyses were conducted. RESULTS: From January 2003 to December 2006, the medical records of 103 patients were extracted. Grade 4 neutropenia was frequently observed in females (male, 66% and female, 90%, P = 0.036 in a univariate analysis). In a multivariate analysis, female gender (P = 0.019), body weight loss (P = 0.021) and amrubicin dose (P = 0.028) were significantly correlated with Grade 4 neutropenia. CONCLUSION: Gender could be considered as one of the important predictive factors associated with Grade 4 neutropenia in patients receiving amrubicin monotherapy.