Palliative care delivery: descriptions of community-based services in Vellore, India, and Seattle, Washington.

BACKGROUND:: A public health approach to palliative care supports community-dwelling adults with advanced illness. A better understanding of successful community-based palliative care programmes and partnerships is needed to expand community-based services for ageing populations. AIMS:: This study describes two organisations in two different countries that provide health and social services to community-dwelling adults with advanced illness. METHODS:: Unstructured key-informant interviews and observational data were collected at the Christian Medical College's College of Nursing Community Health Programme (Vellore, India) and at Phinney Neighborhood Association Village (Seattle, Washington, USA). FINDINGS:: College of Nursing Community Health Programme nurses work with volunteer community health workers to identify and provide client-focused support to ensure quality-of-life. The Phinney Neighborhood Association Village is a volunteer-led organisation that provides social support. Both serve community-dwelling adults with advanced illness. CONCLUSION:: Partnerships between healthcare organisations and community volunteers support a public health approach to community-based palliative care.

Castration-resistant prostate cancer bone metastasis response measured by 18F-fluoride PET after treatment with dasatinib and correlation with progression-free survival: results from American College of Radiology Imaging Network 6687.

UNLABELLED: (18)F-fluoride PET quantitatively images bone metabolism and may serve as a pharmacodynamic assessment for systemic therapy such as dasatinib, a potent SRC kinase inhibitor, with activity in bone. METHODS: This was an imaging companion trial (American College of Radiology Imaging Network [ACRIN] 6687) to a multicenter metastatic castration-resistant prostate cancer (CRPC) tissue biomarker-guided therapeutic trial (NCT00918385). Men with bone metastatic CRPC underwent (18)F-fluoride PET before and 12 weeks after initiation of dasatinib (100 mg daily). Dynamic imaging was performed over a 15-cm field of view for trial assessments. The primary endpoint was to determine whether changes in (18)F-fluoride incorporation in tumor and normal bone occurred in response to dasatinib. Other endpoints included differential effect of dasatinib between (18)F-fluoride incorporation in tumor and normal bone, (18)F-fluoride transport in bone metastases, correlation with progression-free survival (PFS), prostate-specific antigen, and markers of bone turnover. RESULTS: Eighteen participants enrolled, and 17 underwent interpretable baseline (18)F-fluoride PET imaging before initiation of dasatinib. Twelve of 17 patients underwent on-treatment PET imaging. Statistically significant changes in response to dasatinib were identified by the SUVmaxavg (average of maximum standardized uptake value [SUVmax] for up to 5 tumors within the dynamic field of view) in bone metastases (P = 0.0002), with a significant differential (18)F-fluoride PET response between tumor and normal bone (P < 0.0001). Changes in (18)F-fluoride incorporation in bone metastases had borderline correlation with PFS by SUVmaxavg (hazard ratio, 0.91; 95% confidence interval, 0.82-1.00; P = 0.056). Changes by SUVmaxavg correlated with bone alkaline phosphatase (P = 0.0014) but not prostate-specific antigen (P = 0.47). CONCLUSION: This trial provides evidence of the ability (18)F-fluoride PET to delineate treatment response of dasatinib in CRPC bone metastases with borderline correlation with PFS.