Active clinical trials for "Osteoporosis"

Rational: Osteoporosis in men is responsible for one third of fragility fractures. However the definition and especially the determinants of fracture in humans are less well known than in women. Primary Objective: To search radiologic, biochemical, genetic and micro-architecture bone factors associated to fractures in men with low bone density. Study design: case/control study (fracture vs. no fracture) with men selected according to low bone density (Z-score<-2). Eligibility criteria: Included subjects will be men whose age is ³ 40 and £ 70 years with a Z-score< -2 at least at one of the 3 measured sites (wrist, lumbar spine, femoral neck). Subjects with secondary osteoporosis will be excluded (corticosteroid treatment, hypogonadism, …) Progress of the study: The recruitment will be over two years. The study will include two periods, an inclusion visit and a period of 3 months to achieve radiological and biological examinations. The subjects will be recruited in the 3 rheumatology departments (LARIBOISIERE, COCHIN). Subjects will be investigated at LARIBOISIERE hospital to perform radiological examinations and biological sampling for laboratory tests within 3 months of enrollment. Evaluation criteria: Biochemistry: dosages of sexual steroids, bone remodeling markers and homocysteine; Genetic: evaluation of polymorphism of candidates genes associated to fragility fractures (collagen type I, homocysteine, LRP5); Radiology: evaluation of bone micro-architecture with a scan of lumbar spine and hip and peripheral micro-scan (XTREME sSCANCO) and bone densitometry at spine, femoral neck and wrist. Duration of participation: there is no follow up Total duration of the study: 2 years and 3 months. Number of subjects: 100 patients with fracture and 100 controls without fracture

Utilizing an extremely well-characterized HIV cohort under observation as ART-naïve or since their first exposure to HIV treatment, the investigators will conduct a cross-sectional study with prospectively collected data to determine BMD in 200 subjects. Subjects identified were initially treatment naïve when entering the University of Alabama at Birmingham (UAB) 1917 HIV Clinic between 1999 and 2010; some have been under observation without being treated with ART therapy and others were newly started on ART therapy while under observation. For each subject, the investigators will determine associations between BMD and 1) cumulative viremia, 2) ART duration, and 3) ART type. Hypothesis 1a: BMD will be lowest in HIV+ subjects with the highest levels of cumulative viremia. Hypothesis 1b: BMD will be greatest in HIV+ persons with longest duration of ART therapy, after excluding those subjects treated with tenofovir. Hypotheses 1c: BMD will be lower in subjects treated with tenofovir vs. other ART agents, after controlling for duration of therapy. Additionally, the investigators will conduct a retrospective study in 100 patients HIV+ and were ART-naïve at the time of entry into the 1917 Clinic in whom the investigators will longitudinally evaluate the relationship between HIV viral load, inflammation, and bone turnover (through the measurement of HIV copy-years viremia, interleukin-6 {IL-6}, tumor necrosis factor alpha {TNF-a}, high-sensitivity c-reactive protein {hsCRP}, osteocalcin, and urine C-telopeptide {CTX}). The investigators will compare HIV patients at a similar stage of their disease who remain treatment naïve (either due to concerns for compliance or sufficient CD4 counts without treatment) (ART-) vs. those newly started on ART (ART+). Hypothesis 2: Viral load, markers of inflammation, and markers of bone resorption will all decrease in ART+ vs. ART- persons.

In this survey, to collect the safety and efficacy information of Bazedoxifene in daily medical practice will be examined. In addition, the necessity of special Investigation and post-marketing clinical studies will be examined, while investigating unexpected adverse drug reactions during the survey period and understanding of the status of frequency of adverse drug reactions in daily medical practice.

This study is a regulatory post-marketing surveillance in Japan, and it is a local prospective and observational study of patients who have received Julina for postmenopausal osteoporosis. The objective of this study is to assess safety and efficacy of using Julina in clinical practice. A total 100 patients will be recruited and followed 3 years since starting Julina administration.

Osteoporosis is a prevalent health concern among older adults and is associated with an increased risk of falls that can cause fracture, injury and even mortality. Identifying the factors related to falls occur within this population is essential for the development of effective regimes for fall prevention. The long-term objectives of this work are to ascertain the mechanisms for effectively controlling balance in seniors with osteoporosis and to provide a basis for developing fall prevention programs. The entire body's center of mass (CoM) is a critical indicator for balance control and the coordination among joints and muscles to control the CoM is still unclear. The aim1 of this study is to develop biomechanical models that control the entire body's center of mass (CoM) during upright quiet stance in seniors with osteoporosis. The aim2 of this study is to identify the mechanism to control the entire body's CoM after receiving a balance perturbation in seniors with osteoporosis. The findings of this research can provide needed information regarding the processes of balance control in this vulnerable osteoporosis population, and has the potential to be applied to individuals with other neuromuscular and orthopedic deficits.

The Risk-stratified Osteoporosis Strategy Evaluation Study (ROSE) is a randomised population-based study, including 20,904 Danish women aged 65-81 years, investigating the effectiveness of a two-step screening programme for osteoporosis, using a questionnaire based on FRAX® followed by DXA-scan of those at highest risk. Further, the study is expected to provide knowledge about cost-effectiveness, patient preferences and acceptance of screening programme to prevent fractures

This observational study will assess the compliance and persistence of patients, real life efficacy and safety of intravenously quarterly administered 3 mg ibandronate [Bonviva/Boniva] in comparison to oral alendronate generics in female patients with post-menopausal osteoporosis. The anticipated time of assessment is 12 months. The target sample size is 5000-7000 patients.

This study is a randomized, open-label, crossover study to assess the bioequivalence of 1 risedronate 150 mg tablet versus 2 risedronate 75 mg tablets administered as a single oral dose. Approximately 320 subjects will be enrolled from 4 study centers in the U.S.

The main objective is to study important factors in the patho-physiology of osteoporosis in patients with COPD. Therefore, the investigators will study biological markers in plasma and urine and correlate them to markers of bone turnover and clinical data.

Randomized, double-blind, 2-treatment, 2-period, 2-sequence, crossover study, The study will consist of a screening visit, study center admission (preceding Treatment Periods 1 and 2), 2 treatment periods (4 days each), 1 washout period (14 to 17 days separating periods 1 and 2), and exit procedures.