Vitamin D supplementation has a small positive impact on muscle strength, but additional studies are needed to define optimal treatment modalities, including dose, mode of administration, and duration.

These results confirm that adherence to current therapeutic regimens remains suboptimal.

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Results from this large meta-analysis show that both SSRIs and TCAs are associated with a moderate and clinically significant increase in the risk of fractures of all types.

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Summary Adherence to anti-osteoporosis medications is currently low and is associated with poor anti-fracture efficacy. This manuscript reviews the potential design of clinical studies that aim to demonstrate improved adherence, with new chemical entities to be used in the management of osteoporosis.

This study aims to estimate the potential clinical and economic implications of therapeutic adherence to bisphosphonate therapy. A validated Markov microsimulation model was used to estimate the impact of varying adherence to bisphosphonate therapy on outcomes (the number of fractures and the quality-adjusted life-years [QALYs]), health-care costs, and the cost-effectiveness of therapy compared with no treatment. Adherence was divided into persistence and compliance, and multiple scenarios were considered for both concepts. Analyses were performed for women aged 65 years with a bone mineral density T-score of -2.5. Health outcomes and the cost-effectiveness of therapy improved significantly with increasing compliance and/or persistence. In the case of real-world persistence and with a medical possession ratio (MPR; i.e., the number of doses taken divided by the number of doses prescribed) of 100%, the QALY gain and the number of fractures prevented represented only 48 and 42% of the values estimated assuming full persistence, respectively. These proportions fell to 27 and 23% with an MPR value of 80%. The costs per QALY gained, for branded bisphosphonates (and generic alendronate), were estimated at 19,069 (4,871), 32,278 (11,985), and 64,052 (30,181) for MPR values of 100, 80, and 60%, respectively, assuming real-world persistence. These values were 16,997 (2,215), 24,401 (6,179), and 51,750 (20,569), respectively, assuming full persistence. In conclusion, poor compliance and failure to persist with osteoporosis medications results not only in deteriorating health outcomes, but also in a decreased cost-effectiveness of drug therapy. Adherence therefore remains an important challenge for health-care professionals treating osteoporosis.

Background Symptomatic slow-acting drugs for osteoarthritis (SYSADOAs) are an important drug class in the treatment armamentarium for osteoarthritis (OA). Objective We aimed to re-assess the safety of various SYSADOAs in a comprehensive meta-analysis of randomized placebo-controlled trials, using, as much as possible, data from full safety reports. Methods We performed a systematic review and random-effects meta-analyses of randomized, double-blind, placebo-controlled trials that assessed adverse events (AEs) with various SYSADOAs in patients with OA. The databases MEDLINE, Cochrane Central Register of Controlled Trials (Ovid CENTRAL) and Scopus were searched. The primary outcomes were overall severe and serious AEs, as well as AEs involving the following Medical Dictionary for Regulatory Activities (MedDRA) system organ classes (SOCs): gastrointestinal, cardiac, vascular, nervous system, skin and subcutaneous tissue, musculoskeletal and connective tissue, renal and urinary system. Results Database searches initially identified 3815 records. After exclusions according to the selection criteria, 25 studies on various SYSADOAs were included in the qualitative synthesis, and 13 studies with adequate data were included in the meta-analyses. Next, from the studies previously excluded according to the protocol, 37 with mainly oral nonsteroidal anti-inflammatory drugs (NSAIDs) permitted as concomitant medication were included in a parallel qualitative synthesis, from which 18 studies on various SYSADOAs were included in parallel meta-analyses. This post hoc parallel inclusion was conducted because of the high number of studies allowing concomitant anti-OA medications. Indeed, primarily excluding studies with concomitant anti-OA medications was crucial for a meta-analysis on safety. The decision for parallel inclusion was made for the purpose of comparative analyses. Glucosamine sulfate (GS), chondroitin sulfate (CS) and avocado soybean unsaponifiables (ASU; Piascledine ® ) were not associated with increased odds for any type of AEs compared with placebo. Overall, with/without concomitant OA medication, diacerein was associated with significantly increased odds of total AEs (odds ratio [OR] 2.22; 95% confidence interval [CI] 1.58–3.13; I 2 = 52.8%), gastrointestinal disorders (OR 2.85; 95% CI 2.02–4.04; I 2 = 62.8%) and renal and urinary disorders (OR 3.42; 95% CI 2.36–4.96; I 2 = 17.0%) compared with placebo. In studies that allowed concomitant OA medications, diacerein was associated with significantly more dermatological disorders (OR 2.47; 95% CI 1.42–4.31; I 2 = 0%) and more dropouts due to AEs (OR 3.18; 95% CI 1.85–5.47; I 2 = 13.4%) than was placebo. No significant increase in s...