Osteoporosis

In this research study the study investigators want to learn more about the effect of two different FDA-approved medication regimens in the treatment of postmenopausal osteoporosis.

Osteoporosis, a silent and multifactorial systemic skeletal disorder, severely compromises bone strength and significantly increases the risk of fragility fractures. Despite its high prevalence (affecting \~10% of Portuguese over 50), it remains critically underdiagnosed and undertreated, with over 80% of fragility fractures occurring in untreated individuals. Chronic Kidney Disease (CKD) profoundly exacerbates bone fragility, giving rise to CKD-associated osteoporosis, a complex skeletal disorder often integrated within CKD-Mineral and Bone Disorder. This systemic dysregulation of mineral metabolism not only impairs bone quality but also actively promotes vascular calcification and significantly elevates cardiovascular disease risk, underscoring a critical kidney-bone-vascular nexus. Despite these well-established links, CKD-associated osteoporosis is similarly underdiagnosed and undertreated, partly due to diagnostic challenges related to Bone Mineral Density interpretation and therapeutic hesitancy in this complex patient population. This multi-phase observational study is designed to address the significant public health challenges posed by osteoporosis and by osteoporosis associated with CKD in Portugal, particularly among individuals aged 40 years to 90 years. The study aims to enhance understanding of disease prevalence, identify diagnostic and treatment gaps, and evaluate management trajectories, while emphasizing the intricate interrelationships among bone health, renal function, and cardiovascular risk.

Retrospective observational

Our goal is to demonstrate efficacy of the novel agent Denosumab to improve or preserve muscle health, strength, mobility and function in frail older adults.

People with Alzheimer's disease are at an increased risk of bone fracture. Some studies have shown that those taking donepezil have a lower rate of bone fractures, but the reasons for this are unknown. The purpose of this study is to measure the effect of donepezil treatment on bone metabolism factors including bone mineral density, bone turnover markers, and bone quality. Participants in this study will have a bone density test and have blood samples collected at the baseline study visit. Participants will then be assigned to donepezil to be taken daily by mouth for 12 months. Blood samples will be collected at 6 and 12 months. A repeat bone density test will be performed at 12 months. Participants will also complete questionnaires at each study visit.

Hormones are chemical messengers that help regulate many functions in the body. As women go through menopause, and as men age, levels of certain reproductive hormones change significantly. One of these hormones, luteinizing hormone (LH), increases substantially after menopause and may also rise in some men. Another hormone, human chorionic gonadotropin (hCG), is best known as the hormone of pregnancy, but small amounts can also be detected in some postmenopausal women and older men. Recent research suggests that LH and hCG may have effects beyond reproduction. These hormones may influence bone health, body weight, kidney function, thyroid function, and adrenal gland function. However, little is known about their importance in patients with endocrine disorders. The purpose of this study is to investigate whether blood levels of LH and hCG are associated with the presence, severity, and long-term outcomes of endocrine diseases. The study will include adult patients undergoing evaluation for hormonal disorders. Blood samples will be analyzed for LH, hCG, and other relevant hormones and biomarkers. Participants will also be followed through national health registries to examine whether these hormone levels are associated with future health outcomes. The results of this study may improve our understanding of how LH and hCG affect the body and help determine whether these hormones can be used as biomarkers to improve the diagnosis and management of endocrine diseases.

Osteoporosis is a frequent complication of chronic kidney disease (CKD) on dialysis, with an estimated prevalence of approximately 40%. It is associated with increased fracture risk, reduced quality of life, and higher mortality. Despite available therapies, management often remains suboptimal, partly due to limited evidence on the safety and pharmacokinetics of bisphosphonates in this population. Objectives: To understand the pharmacokinetics of zoledronic acid in CKD patients on dialysis, as well as to analyze its effects on biomarkers of bone metabolism, bone mineral density (BMD), and clinical outcomes. Materials and Methods: This prospective clinical study involves 24 adult individuals, 8 with CKD-associated osteoporosis (control group; estimated glomerular filtration rate (eGFR) ≥ 35 mL/min/1.73 m²) and 16 with CKD-associated osteoporosis anuric on dialysis patients. Individuals undergoing dialysis will be assigned to receive zoledronic acid at doses of 2.5 mg or 5 mg intravenously (single dose, at the beggining of dialysis session), while patients with CKD-associated osteoporosis (control group; estimated glomerular filtration rate (eGFR) ≥ 35 mL/min/1.73 m²) will receive 5 mg, also in a single dose. Serial blood samples will be collected after infusion, during dialysis session and again up to 96h after dialysis session initiation. The dialysate will be continuously sampled in a tank and aliquots collected for further analysis. The plasma levels of zoledronic acid will be calculated from blood and dialysate samples using liquid chromatography mass spectrometry. The primary outcome is the plasma concentration-time curve of zoledronic acid during a regular dialysis session. Secondary outcomes are: (i) plasma concentration of zoledronic acid up to 96h;(ii) the total mass of zoledronic acid extracted by the dialysate; (iii) the dialytic clearance of zoledronic acid. Evaluation of bone biomarkers (e.g., PTH, alkaline phosphatase, calcium, phosphorus, CTX, and P1NP) and BMD (assessed by bone densitometry) will be performed at baseline and at 12 months. The study will be conducted at the UNICAMP Clinical Hospital, with the participation of one participating center, subject to prior approval from the respective Research Ethics Committees. All participants will be included only after signing the Informed Consent Form. Data will be anonymized and processed in accordance with the General Data Protection Law (LGPD). Expected results: To characterize the pharmacokinetic profile and establish the best dosage regimen of zoledronic acid in patients with CKD on dialysis; to observe the impact of the drug on biomarkers of bone metabolism and BMD.

The objective of this randomized clinical trial is to assess both the effectiveness and underlying mechanisms of patient education for individuals aged 50 years and older with osteoporosis. Primary research question: What differences in outcomes can be observed among three different educational interventions with respect to osteoporosis-specific self-care, health related quality of life, fracture risk, illness perception, physical activity, physical function, fear of falling, and pain in patients diagnosed with osteoporosis? The trial will include three study arms: 1) Control group: Participants receive standard osteoporosis information provided by healthcare services. 2) Face-to-face education: Three 2-hours sessions led by a physiotherapist (two sessions) and physician or nurse (one session) within a 2 months period. 3) Digital education: Internet-based program consisting of nine modules accessible to participants over a one-year period. Participants will complete questionnaires and undergo physical assessments at baseline, and at 3 and 12 months follow up. Additionally, a subset of participants will undergo objective assessment of physical activity pattern and sedentary behaviours with an accelerometer at baseline and after 3 and 12 months.

This study aimed to investigate the effect of postural correction exercises on pelvic floor dysfunction in postmenopausal osteoporotic women

The GRAMS study objectives are to assess the musculoskeletal changes that occur after weight loss using GLP-1 based therapy. A lifestyle intervention with diet and exercise is included to assess any mitigating effects are provided, versus a control group with regular exercise and diet.

Chronic pain disproportionately affects women and may coexist with impaired bone health, particularly during midlife and after menopause. The endocannabinoid system is involved in pain modulation and bone homeostasis; however, clinical studies that integrate pain outcomes, bone-related biomarkers, genetic variants, and salivary endocannabinoids remain limited.This randomized, triple-masked, placebo-controlled crossover trial will evaluate the effects of a full-spectrum medicinal cannabis extract with a cannabidiol to tetrahydrocannabinol ratio of 5:1 on chronic pain in women aged 45 to 80 years with chronic pain refractory to conventional treatment. Eighty participants will be randomly assigned to one of two treatment sequences: full-spectrum cannabis extract followed by matching placebo, or matching placebo followed by full-spectrum cannabis extract. The treatment periods, washout interval, and visit schedule will follow the final approved protocol.The primary outcome is change in chronic pain intensity measured using the Visual Analog Scale. Secondary outcomes include quality of life, sleep quality, functional impact, bone health biomarkers, bone mineral density measured by dualenergy X-ray absorptiometry, salivary endocannabinoids, the association of CB and TRPV genetic variants with treatment response, and adverse events. The study aims to generate evidence on the clinical effects and biological correlates of medicinal cannabis therapy in women with chronic pain.

This study is a prospective, multicenter, open-label, randomized non-inferiority trial comparing intravenous ibandronate and zoledronic acid as sequential therapy after denosumab discontinuation in postmenopausal women with osteoporosis. This trial primarily targets patients with short-term denosumab exposure (less than three years) and is conducted as a preliminary investigation. The findings are expected to provide foundational evidence to inform the design of future studies assessing sequential therapies following longer-term denosumab treatment.

The purpose of this study is to evaluate the relationship between lipedema and osteoporosis and to examine factors that may be associated with osteoporosis in individuals with lipedema.

Bone turnover markers (BTMs) are recommended as an important tool in follow-up of osteoporosis treatment. However, there is a lack of knowledge in the reliability of BTMs during and after glucocorticoid treatment. Glucocorticoids suppresses BTMs during treatment with at least 30% and, moreover, glucocorticoids increase the risk of fractures. Patients with an inflammatory joint disease are at increased risk of osteoporosis, and disease flares are often treated with glucocorticoids, which in turn can lead to loss in reliability of the BTMs in patients who also are on osteoporosis treatment. There is a need of more knowledge on BTM changes during and after glucocorticoid treatment for optimized patientcare, reduced risk of side effects and reduced health economic costs.

Those with osteoporosis often have weaker bones and this leads to higher chances of fractures. Therefore, the investigators want to evaluate the feasibility and safety of group exercise classes specifically designed for individuals with osteoporosis who had an osteoporotic fracture. By focusing on this high-risk population, the investigators want to see whether such exercise interventions can be an option for improving bone health, reducing the risk of future fractures, and enhancing physical function without compromising safety.

Diseases of bone associated with ageing, including osteoporosis (OP) and osteoarthritis (OA), reduce bone mass, bone strength and joint integrity. Current non-surgical approaches are limited to pharmaceutical agents that are not disease modifying and have poor patient tolerability due to side effect profiles. Developing a fundamental understanding of cellular bone homeostasis, including how key cell types affect tissue health, and offering novel therapeutic targets for prevention of bone disease is therefore essential. This is the focus of OSTEOMICS. A number of factors have been linked to increased risk of bone disease, including genetic predisposition, diet, smoking, ageing, autoimmune disorders and endocrine disorders. In our study, we will recruit patients undergoing elective and non-elective orthopaedic surgery and obtain surgical bone waste for analysis. This will capture a cohort of patients with bone disorders like OP and OA, in addition to patients without overt clinical bone disease. We will study the relationship between the molecular biology of bone cells, bone structure, genetics (DNA) and environmental factors with the aim of identifying and validating novel therapeutic targets. We will leverage modern single cell technologies to understand the diversity of cell types found in bone. These technologies have now led to the characterisation of virtually every tissue in the body, however bone and bone-adjacent tissues are massively underrepresented due to the anatomical location and underlying technical challenges. Early protocols to demineralise bone and perform single cell profiling have now been developed. We will systematically scale up these efforts to observe how genetic variation at the population level leads to alterations in bone structure and quality. Over the next 10 years, we will generate data to comprehensively characterise bone across health and disease, use machine learning to drive analysis, and experimentally validate hypotheses - which will ultimately contribute to developing the next generation of therapeutic agents.

This study will compare adherence, tolerability, safety, and treatment satisfaction between a calcium-rich food and a traditional calcium carbonate supplement in women ages 40 to 90 who are at increased risk for osteoporosis. Participants will be randomly assigned to receive either a calcium-rich food providing 500 mg of calcium from milk-derived minerals or a 500 mg calcium carbonate supplement once daily for four weeks. Participants will complete brief weekly questionnaires assessing supplement use, gastrointestinal symptoms, and treatment satisfaction. The goal of the study is to determine whether the form in which calcium is consumed influences adherence and participant experience. No blood draws, imaging studies, or other invasive procedures are involved

Osteoporosis is a systemic disorder of the skeletal system characterized by decreased Bone Mass and deterioration of the Microarchitecture, making it significantly easier to fracture the bones. In addition to the increased risk of fracture due to reduced Bone Strength, other common impairments in the balance, postural control and coordination of muscles may increase the risk of falling, as well. Recent research has increasingly begun to conceptually link fall risk to be a multi-factorial issue, due to the interaction of the biomechanical, neuromuscular and functional deficits that an older person most likely experiences in conjunction with the effects of ageing (Papalia et al., 2020). As such, physiotherapy techniques for treating persons at risk of falling have progressed away from providing isolated (and consequently limited) gains in strength or mobility, towards providing a more multi-faceted and thus comprehensive, integrated method of enhancing overall physical performance through exercise. Physical activity interventions are being used to treat the condition of osteoporosis and have been identified as an essential component of preventing osteoporosis. Many recent statements have indicated that through the incorporation of organized physical activity into each individual's physical activity routine, as opposed to the previous recommendation for just resistance training and balance activities, the ability for individuals to experience a change in their physical abilities and thereby decrease their risk of falling is significantly improved (Brooke-Wavell et al., 2022; Bae et al., 2023). Among the many types of exercise-based interventions for treating osteoporosis, those that focus on improving balance have been shown to be effective in improving stability of the body postural position as well as decreasing the fear of falling (which can contribute to decreased mobility and increase the risk of falling) (Wei et al., 2023). A systematic review and analysis of the available literature indicates that targeted balance training is effective for improving both static and dynamic postural stability among older adults and persons with osteoporosis; moderate effects were found with regard to the risk of falling as a result of balance training (Zhou et al., 2018; Papalia et al., 2020). Randomized controlled trials provide additional evidence of the positive impact of physiotherapy programs on their clinical use. For Osteoporotic women, having balance training interventions leads to the to the outcome of significantly reducing falls and enhancing stability (Mikó et al., 2017). On the same note, Multicomponent programs that combine resistance and balance training have resulted in increased muscle strength, physical performance and health-related quality of life for patients with vertebral fractures, along with reduced fear of falling. (Stanghelle et al., 2020). Newer developments in this area such as virtual reality exercise programs have provided additional improvements in Balance performance and increased patient engagement in rehabilitation (Yilmaz \& Kösehasanoğulları, 2024).

The goal of this investigational device exemption is to evaluate the Epione assistance for introducer placement during percutaneous procedures in musculo-skeletic (MSK) structures of the pelvis and the spine in adults. The main question is the determination of the rate of feasible procedures assisted by the Epione device Participants will undergo their procedure(s) as planned by their physician. If they accept to participate to the study, the differences with standard of care will be: * The use of the Epione device to place the introducer(s), instead of freehand placement if they do not participate * Additional CT or CBCT scans during the procedure.

This study examines saliva samples from patients with osteoporosis. The levels of cytokines and Matrix Metalloproteinase-8 (MMP-8) enzyme in saliva will be measured. Additionally, the dental caries status of participants will be evaluated. The aim of this study is to understand the relationship between osteoporosis and oral health. Only saliva samples will be collected from participants; no treatment or medication will be administered.

OPTIMIST is a two-year, randomised, active controlled, open-label, multicentre intervention trial. OPTIMIST includes 3 treatment groups each comprising combinations of romosozumab (ROMO) and zoledronate (ZOL) treatment used in standard doses (210 mg monthly (sc) and 5 mg yearly (iv), respectively). The study will investigate if it is possible to maximize the effect of romosozumab by giving it in 2 periods of 6 months interrupted by zoledronate for 12 months compared to romosozumab for 12 months uninterrupted followed by zoledronate for 12 months. The investigators will also evaluate if 6 months of romosozumab followed by 18 months of zoledronate is non-inferior to the standard regimen of romosozumab for 12 months followed by zoledronate for 12 months.

Osteoporosis is a major cause of morbidity and fragility fractures in postmenopausal women. Bone mineral density (BMD) alone may not fully reflect fracture risk and skeletal fragility. Lumican, an extracellular matrix proteoglycan involved in collagen organization and musculoskeletal tissue homeostasis, has emerged as a potential biomarker for bone health. This prospective observational study aims to investigate the relationship between serum lumican levels, bone mineral density, muscle strength, and clinical fragility indicators in postmenopausal women. Approximately 100 participants will undergo routine osteoporosis assessment including DEXA, laboratory testing, FRAX evaluation, and handgrip strength measurement. The study will evaluate whether serum lumican levels can identify a hidden fragility phenotype beyond conventional bone mineral density measurements.

The Functional Muscle-Bone Incongruity Index (FKUI) is a novel approach developed to evaluate the relationship between muscle function and bone health. This prospective observational study aims to investigate the clinical applicability of FKUI, which combines handgrip strength, total hip bone mineral density (BMD), and lumbar-hip BMD discordance. Approximately 200 adult participants undergoing routine DXA assessment will be enrolled. The study will examine whether the combined evaluation of muscle function and bone health parameters provides a more comprehensive assessment of musculoskeletal status than individual measures alone.

Osteoporotic vertebral compression fractures (OVCFs) are a common and serious complication of osteoporosis, particularly among elderly and postmenopausal patients. OVCFs may result in severe pain, functional impairment, spinal deformity, and reduced quality of life. Conventional conservative treatments, including bed rest, analgesics, and bracing, may provide limited symptom relief. Minimally invasive vertebral augmentation procedures, such as vertebroplasty and kyphoplasty, have been widely used to improve clinical outcomes; however, risks including bone cement leakage and incomplete vertebral restoration remain concerns. The Vessel-X® Bone Filling Container System, manufactured by Central Medical Technologies Inc. (CMT), is a third-generation vesselplasty technology designed for percutaneous vertebral augmentation procedures. The system utilizes an implantable biocompatible polyethylene terephthalate (PET) container with a microporous structure for controlled bone cement delivery. The implant remains within the vertebral body after cement injection and is designed to reduce cement leakage while maintaining vertebral height restoration and pain relief. This post-market clinical study evaluates the safety and clinical effectiveness of the Vessel-X® Bone Filling Container System at two medical centers in Taiwan with a total target enrollment of 146 subjects: Tri-Service General Hospital (TSGH): 86 subjects randomized in a 1:1 ratio to the experimental and control groups. Taoyuan General Hospital, Ministry of Health and Welfare (TYGH): 60 subjects randomized in a 1:1 ratio to the experimental and control groups. The primary objective is to evaluate the safety of the device by assessing the incidence of unanticipated serious adverse device effects (USADEs). Secondary objectives include evaluation of pain reduction measured by the Visual Analogue Scale (VAS), functional recovery assessed by the Oswestry Disability Index (ODI), and radiographic outcomes including vertebral height restoration and kyphotic deformity correction.

This study is a prospective, randomized, controlled clinical trial comparing the efficacy of a 24-month cyclic therapy regimen (6 months of Romosozumab followed by 6 months of Denosumab, repeated for two years) versus a traditional sequential treatment regimen (12 months of Romosozumab followed by 12 months of Denosumab). The goal is to determine which approach yields better therapeutic outcomes and to optimize drug strategies for osteoporosis patients.