BackgroundHyponatremia is prognostic of higher mortality in some cancers but has not been well studied in others. We used a longitudinal design to determine the incidence and prognostic importance of euvolemic and hypervolemic hyponatremia in patients following diagnosis with lymphoma, breast (BC), colorectal (CRC), small cell lung (SCLC), or non-small cell lung cancer (NSCLC).MethodsMedical record and tumor registry data from two large integrated delivery networks were combined for patients diagnosed with lymphoma, BC, CRC, or lung cancers (2002–2010) who had ≥1 administration of radiation/chemotherapy within 6 months of diagnosis and no evidence of hypovolemic hyponatremia. Hyponatremia incidence was measured per 1000 person-years (PY). Cox proportional hazard models assessed the prognostic value of hyponatremia as a time-varying covariate on overall survival (OS) and progression-free survival (PFS).ResultsHyponatremia incidence (%, rate) was 76 % each, 1193 and 2311 per 1000 PY, among NSCLC and SCLC patients, respectively; 37 %, 169 in BC; 64 %, 637 in CRC, and 60 %, 395 in lymphoma. Hyponatremia was negatively associated with OS in BC (HR 3.7; P = <.01), CRC (HR 2.4; P < .01), lung cancer (HR 2.4; P < .01), and lymphoma (HR 4.5; P < .01). Hyponatremia was marginally associated with shorter PFS (HR 1.3, P = .07) across cancer types.ConclusionsThe incidence of hyponatremia is higher than previously reported in lung cancer, is high in lymphoma, BC, and CRC and is a negative prognostic indicator for survival. Hyponatremia incidence in malignancy may be underestimated. The effects of hyponatremia correction on survival in cancer patients require further study.
There is conflicting evidence in the literature on whether individuals with haemophilia in the USA have greater, reduced, or similar risks for cardiovascular disease as the general population. This study evaluated the prevalence of cardiovascular comorbidities among USA males with haemophilia A, relative to an unaffected general male population with similar characteristics. Males with haemophilia A and continuous insurance coverage were identified by ICD-9-CM code 286.0 (1 January 2007-31 December 2009) using the MarketScan Commercial and Medicare Research Databases. Individuals with haemophilia A were exact matched 1:3 with males without a diagnosis of haemophilia A. The prevalence of cardiovascular comorbidities identified by ICD-9-CM code was determined for matched cohorts. Of the study population, 2506 were grouped in the haemophilia A cohort and 7518 in the general cohort. Proportions of individuals with haemorrhagic stroke (2.0% vs. 0.5%, P < 0.001), ischemic stroke (4.7% vs. 2.7%, P < 0.001), coronary artery disease (10.7% vs. 5.8%, P < 0.001), myocardial infarction (0.8% vs. 0.3%, P = 0.003), hypertension (22.6% vs. 15.5%, P < 0.001), hyperlipidaemia (15.9% vs. 11.9%, P < 0.001), arterial thrombosis (12.1% vs. 5.9%, P < 0.001), and venous thrombosis (4.4% vs. 1.1%, P < 0.001) were significantly greater for the haemophilia A cohort. Results were consistent across most age groups, and comorbidities appeared at an earlier age in those with haemophilia A than in the general population. Among the USA haemophilia A population cardiovascular comorbidities are more prevalent and they appear earlier in life in comparison to the general male population, suggesting the need for earlier, enhanced screening for age-related comorbidities in the haemophilia community.
Background Children aged ≥ 6 to < 12 years with severe atopic dermatitis (AD) have limited treatment options. In a 16-week, randomized, placebo-controlled, phase III trial in children, dupilumab, a monoclonal antibody inhibiting interleukin (IL)-4/ IL-13 signalling, significantly improved signs and symptoms with acceptable safety; longer-term safety and efficacy data are lacking. Objectives To report the pharmacokinetic profile and long-term safety and efficacy of dupilumab in children (aged ≥ 6 to < 12 years) with severe AD. Methods Children (aged ≥ 6 to < 12 years) with severe AD were enrolled in a global, multicentre, phase IIa, open-label, ascending-dose, sequential cohort study and subsequent open-label extension (OLE) study. Patients received single-dose dupilumab 2 or 4 mg kg À1 followed by 8-week pharmacokinetic sampling, then 2 or 4 mg kg À1 weekly for 4 weeks (phase IIa), followed by the same weekly regimen (OLE). Primary endpoints were dupilumab concentration-time profile and treatment-emergent adverse events (TEAEs); secondary assessments included Eczema Area and Severity Index (EASI) and Peak Pruritus Numeric Rating Scale (PP-NRS) score. Results Of 38 children enrolled, 37 completed phase IIa and 33 continued to the OLE. Nonlinear, target-mediated pharmacokinetics characterized dupilumab concentrations (week 24-48 mean serum concentrations: 2 mg kg À1 , 61-77 mg L À1 ; 4 mg kg À1 , 143-181 mg L À1 ). TEAEs were mostly mild to moderate and transient; none led to treatment discontinuation. The most commonly reported TEAEs were nasopharyngitis (2 mg kg À1 , 47%; 4 mg kg À1 , 56%) and AD exacerbation (29% and 13%, respectively). Single-dose dupilumab rapidly improved AD with further improvements through week 52. Mean EASI and PP-NRS improved by À37%/À33% and À17%/À20% at week 2 (phase IIa) and À92%/ À84% and À70%/À58% at week 52 (OLE), respectively.
This study found that the cost of managing NCFB in the first year within a commercially enrolled population may be burdensome. Compared with previously published estimates in the literature, the burden of NCFB may be also increasing.
Cardiovascular disease (CVD) remains a major global cause of morbidity and mortality, affecting 40% of women and 50% of men over their lifetime. 1,2 CVD is also a leading contributor to disease burden in adults aged 60 years and older, accounting for around 30% of the total burden. 3 Statin medications are the most widely used lipidlowering agents, with compelling clinical trial data demonstrating effectiveness in primary and secondary prevention of CVD as well as evidence showing significant reduction of cardiovascular-related mortality. 4-10 Despite these well-documented benefits, adherence and persistence to statins remain substandard. 4,11 High discontinuation rates have also been reported, with 50% of patients discontinuing within 1 year and increasing discontinuation over time, especially among elderly patients. 4,[11][12][13][14][15] In the United States, 33%-69% of all medication-related hospital admissions are attributable to poor medication adherence, resulting in an annual estimated cost of $100 billion. 16,17 About 40%-86% of older adults are nonadherent, [17][18][19] which is concerning because they usually experience a higher number of illnesses, use more medications, and are at risk of age-related cognitive decline. 20,21
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