Clinical Trials Logo

Filter by:
NCT ID: NCT05811949 Recruiting - Multiple Sclerosis Clinical Trials

Effects of Dimethyl Fumarate on Cognitive Performance and Brain Abnormalities in Multiple Sclerosis.

Start date: February 24, 2021
Phase:
Study type: Observational

The goal of this observational study is to evaluate the slowing/reduction of cognitive dysfunction progression and to evaluate grey matter (GM) and thalamus structural changes in Relapsing-Remitting Multiple Sclerosis (RRMS) patients after 12 months of treatment with Dimethyl Fumarate (DMF). The main questions it aims to answer are: - Can DMF slow or reduce the progression of cognitive dysfunction in RRMS patients? - Can DMF slow the reduction of brain volume in RRMS patients? At baseline visit, RRMS patients undergo extensive neurological examination in which their disability is evaluated by using Expanded Disability Status Scale (EDSS). The efficacy assessments of this study are: 1. The Brief Repeatable Neuropsychological Battery (BRB); 2. Executive functions: Delis-Kaplan Function System (DKEFS) scale - Sorting Test. All RRMS patients undergo MRI: conventional MRI measures (T2-, T1-enhancing and T1-hypointense lesions), global brain atrophy, regional brain atrophy and Diffusion Tensor Imaging (DTI) (GM and thalamus) examinations. Six and 12 months after the baseline visit, the RRMS patients in treatment with DMF undergo the BRB, DKEFS and MRI/DTI study and neurological evaluation (EDSS).

NCT ID: NCT05811910 Recruiting - Clinical trials for Acute Lymphocytic Leukemia

Genetic Polymorphisms in Drug Induced Neuropathy in Children With ALL

Start date: March 30, 2021
Phase:
Study type: Observational

Therapeutic success in childhood ALL reaches an outstanding success that currently relies upon risk stratification of patients with appropriate modulation of chemotherapy intensity based on underlying blasts' biological and molecular characteristics, and depth of initial treatment response. ALL polychemotherapeutic approaches share similar therapeutic scheme, with more intensive and toxic earlier phases (about 6 months) followed by a prolonged immunosuppressive regimen for maintenance (about 18 months). Protocols comprise glucocorticoids, antimetabolites, asparaginase, alkylating agents, antimitotic drugs antibiotics and, in case of Philadelphia positive ALL, anti-tyrosine kinase inhibitors combined together at different dosages and timing according to the patient's class of risk. ALL chemotherapeutic agents can damage nearly all organs. Some adverse reactions are extensions of the drugs' desired pharmacological effects on bone marrow and affect almost all children. Other adverse effects occur unpredictably in a smaller fraction of patients who, for unknown reasons, are more susceptible. Concerns about chemotherapy-related toxicities generated a significant need of finding predictive markers for the a priori identification of at-risk patients. Pharmacogenomics markers can be useful tools in clinics for tailoring therapy intensity on patients' genetic profile and in basic research for better understanding mechanistic and regulatory pathways of the biological functions associated with ALL treatment toxicities. Several genome wide association studies explored the landscape of ALL treatment-associated toxicities, discovering the contribution of important variants. Among these, TPMT single nucleotide polymorphisms (SNPs) have a well-recognized role in thiopurine-induced myelotoxicity. SNP rs924607 (C>T) in the promoter region of the gene encoding for the centrosomal protein 72 (CEP72) was associated with increased risk and severity of vincristine-related peripheral neuropathy. The aim of this study is to perform a GWAS in ALL children to provide insight into genetic loci affecting the occurrence of severe (grade III-V) vincristine-related peripheral neuropathy during induction therapy in the AIEOP protocols.

NCT ID: NCT05811884 Not yet recruiting - Clinical trials for Spinal Cord Injuries

Patient-centered Assessment of the Effects of Powered Exoskeleton Use in People With Spinal Cord Injury

Start date: January 2024
Phase: N/A
Study type: Interventional

The goal of this clinical trial is to assess the efficacy of the use of powered exoskeleton for ambulation on the quality of life in subjects with spinal cord injury. The main questions it aims to answer are: 1. How much does the use of powered exoskeleton improve the quality of life in subjects with spinal cord injury after a 24 months treatment period in a house context (treatment 1) or in a clinical setting (treatment 2)? 2. How much do the two treatments differ in terms of cost-utility ratio? Participants will be included in a multi-step process consisting of: 1. Recruitment, based on eligibility criteria; 2. Observation of the "stability" over time (2 months) of specific clinical parameters; 3. Training in the use of the powered exoskeleton (1 month); 4. Random selection of the rehabilitation treatment (house rehabilitation or central rehabilitation); concerning the house rehabilitation, the subject will be provided the device for home use; concerning the central rehabilitation, the subject will be asked to use intensively the device 1-week every three months in a clinical facility. 5. Follow-up: every six months each subject will be asked to attend a single-day activities session consisting of walking activities with the exoskeleton, compilation of questionnaires, sub-maximal effort test with arm-ergometer, and physical examinations made by a physiatrist.

NCT ID: NCT05811845 Recruiting - Clinical trials for Acute Lymphoblastic Leukemia

Mercaptopurine Therapeutic Drug Monitoring to Optimize the Maintenance Phase of Childhood ALL

Start date: July 30, 2022
Phase:
Study type: Observational

Acute lymphoblastic leukemia (ALL) is the most common hematological malignancy in children (<18 years). The success of pediatric ALL therapy is remarkable but important challenges still need to be faced, including cure rates in specific patients' subsets (e.g.: adolescents and relapsed patients), and short- and long-term chemotherapy-related toxicities. The therapeutic scheme of the Associazione Italiana Emato-oncologia pediatrica (AIEOP) ALL protocols consists in a more intensive and toxic earlier phase (to induce and consolidate remission, about 6 months), followed by a prolonged period of immunosuppression (achieved by self- or parent-administered daily mercaptopurine (MP) and weekly methotrexate (MTX) per os). It is now well established that the length of the maintenance phase (up to 24 months after diagnosis) is as necessary as the early remission induction for sustained event-free survival (EFS). Both MP and MTX can lead to potentially serious complications, including potentially life-threatening myelosuppression and infections. To exert its therapeutic effect, MP requires an intracellular enzymatic conversion into active thionucleotides (TGN) and is thus susceptible to intra- and inter-individual variations in efficacy and toxicity. Patients carrying variants in TPMT and NUTD15 genes are at risk of adverse effects when treated with standard MP doses: these patients are identifiable by pre-emptive genotyping. Recent studies demonstrated that an adequate and constant MP exposure during maintenance is associated with higher therapeutic success. Prescribed MP doses are often changed by physicians to target a white blood cell count (WBC) range of 2.0-3.0 × 109/L during maintenance. In the AIEOP ALL 2009 protocol, patients with lower mean TGN exposure during maintenance showed a trend towards a higher risk of relapse compared to others. Similarly, patients with higher intra-individual variability in TGN over time showed a trend towards a worse outcome. Daily compliance to prescribed MP over time is a challenging issue for patients and may result in less effective therapy. The high intra-individual variability in exposure due to the frequent dose adjustments and the potential lack of patients' adherence to oral MP therapy over time might contribute to the risk of relapse. The aim of this study is to assess through therapeutic drug monitoring of MP if patients' exposure during maintenance is adequate and constant.

NCT ID: NCT05811689 Completed - Multiple Sclerosis Clinical Trials

Trabecular Bone Score in Multiple Sclerosis

Start date: February 14, 2021
Phase:
Study type: Observational

Assess bone quality in MS patients through TBS and evaluate the potential effects exerted by different drugs used in MS treatment, which may affect BMD and TBS in MS patients

NCT ID: NCT05811351 Recruiting - Geographic Atrophy Clinical Trials

A Study to Evaluate Intravitreal JNJ-81201887 (AAVCAGsCD59) Compared to Sham Procedure for the Treatment of Geographic Atrophy (GA) Secondary to Age-related Macular Degeneration (AMD)

Start date: March 6, 2023
Phase: Phase 2
Study type: Interventional

The purpose of this study is to evaluate change in geographic atrophy (GA) lesion growth of eyes treated with JNJ-81201887 compared to sham control.

NCT ID: NCT05811013 Not yet recruiting - Clinical trials for Progressive Multiple Sclerosis

Effects of Transcranial Static Magnetic Field Stimulation (tSMS) in Progressive Multiple Sclerosis

Start date: March 27, 2024
Phase: N/A
Study type: Interventional

In multiple sclerosis (MS) brains, inflammation induces specific abnormalities of synaptic transmission, collectively called inflammatory synaptopathy. Such synaptopathy consists in unbalanced glutamatergic and GABAergic transmission and in remarkable changes in synaptic plasticity, causing excitotoxic neurodegeneration and impairing the clinical compensation of the ongoing brain damage, thereby exacerbating the clinical manifestation of the disease. In progressive MS (PMS), synaptopathy is characterized by pathological potentatiation of glutamate-mediated synaptic up-scaling (Centonze et al., 2008; Rossi et al., 2013) and loss of long-term synaptic potentiation [LTP (Weiss et al., 2014)], both caused by proinflammatory molecules (released by microglia, astroglia, and infiltrating T and B lymphocytes) (Malenka et al., 2004; Di Filippo et al., 2017; Stampanoni Bassi et al., 2019). The combination of increased up-scaling and decreased LTP has a significant impact on the clinical manifestations of PMS, often presenting with signs and symptoms indicating length-dependent degeneration of neurons of the corticospinal tract. Altered LTP expression impairs brain ability to compensate ongoing neuronal loss (Stampanoni Bassi et al., 2020), and pathological TNF-mediated up-scaling may directly promote excitotoxic damage and neurodegeneration (Rossi et al., 2014). In addition, up-scaling and LTP are mutually exclusive at a given synapse through a mechanism of synaptic occlusion (i.e., pre-existing up-scaling saturates and prevents subsequent LTP expression), further promoting neurodegeneration by preventing the pro-survival effect of LTP, the induction of which activates intracellular anti-apoptotic pathways (Bartlett & Wang, 2013). It follows that a neuromodulation approach that can chronically (over several months) dampen up-scaling expression in the primary motor cortex (M1) of PMS patients could be beneficial by preventing excitotoxic neurodegenerative damage triggered by up-scaling itself (Centonze et al. 2008, Rossi et al. 2014), and also by promoting LTP induction and LTP-dependent functional compensation of deficits, thereby reducing the speed of the neurodegeneration process through increased LTP-dependent neuronal survival and preservation of dendritic spines (Ksiazek-Winiarek et al., 2015). Our study aims to test whether transcranial static magnetic field stimulation (tSMS) could represent such a therapeutic approach, as recently proposed in patients with amyotrophic lateral sclerosis (ALS) (Di Lazzaro et al, 2021). Forty (40) ambulatory patients with PMS, presenting with the ascending myelopathy phenotype of the disease, will be recruited at the MS Center of the Unit of Neurology of the IRCCS Neuromed in Pozzilli (IS). In this randomized, sham-controlled, double-blind, within-subjects, cross-over study (allocation ratio 1:1), we will test the ability of repeated sessions of tSMS applied bilaterally over the M1 to safely reduce disability progression in patients with PMS. Patients will be randomly assigned to either real or sham tSMS. Each patient will participate in two experimental phases (real or sham stimulation). Each patient will self-administer tSMS over right and left M1, two session per day, 60 minutes each. The order will be randomly established and counterbalanced across participants. Both investigators and participants will be blinded to stimulation parameters. In the "real stimulation" phase, tSMS will be applied for 120 minutes each day, at home, for 12 consecutive months. In the "sham stimulation" phase, sham tSMS will be delivered with non-magnetic metal cylinders, with the same size, weight and appearance of the magnets. Clinical evaluations, including the Multiple Sclerosis Functional Composite measure (MSFC) will be performed before, during and after each experimental phase ("real" and "sham"). In addition, blood levels of neurofilaments, excitability and plasticity of M1, and MRI measures of cortical thickness will be measured before, during and after each stimulation phase.

NCT ID: NCT05810584 Completed - Orthopedic Disorder Clinical Trials

Revision LR Femoral Stem for Hip Replacement

Start date: June 4, 2021
Phase:
Study type: Observational

This is a post-market, monocentric Retrospective and prospective, observational, open-label and baseline clinical study in order to evaluate the performance and safety of Revision LR femoral stem

NCT ID: NCT05810441 Completed - Celiac Disease Clinical Trials

Intestinal Transglutaminase Antibodies in Celiac Disease Diagnosis

Start date: September 23, 2019
Phase:
Study type: Observational

Celiac disease (CD) is a systemic autoimmune gluten-dependent enteropathy in subjects with HLA DQ2/8. CD prevalence is more than 1% with a progression to 2% in adulthood. Among the group at risk such as first-degree relatives, subjects with autoimmune diseases (eg type 1 diabetes) or with syndromes (Down's disease, Turner) the prevalence reaches 5-8%. Recently, in pediatrics CD diagnostic criteria have been modified and the intestinal biopsy can be omitted in presence of a specific clinical and laboratory picture. In the remaining pediatric cases and in all adult patients, the biopsy is fundamental for the diagnosis. The clinical manifestation of CD not always depends on the enteropathy and on the related symptoms, but it can be characterized by extra-intestinal symptoms (eg chronic fatigue, anemia, arthralgia, cerebellar ataxia, alterations of dental enamel) that often hamper a rapid CD recognition delaying the diagnosis especially in adults. Symptoms are not always related to intestinal injury and may be present even when intestinal mucosa is normal. This condition is known as potential CD in which serum IgA anti-transglutaminase antibodies (anti-ttg) are generally positive at low concentrations (eg higher 2-3 times than the cut-off) or positive occasionally. In this clinical context, the gluten-free diet is an effective therapy able to improve the clinical picture and to stop the anti-ttg production. Recent observations, especially in pediatric field, have shown that in potential CD the immunological analysis of intestinal biopsies is characterized by the presence of anti-ttg deposits in the intestinal mucosa which predict the development of intestinal atrophy in a time span of 3- 5 years. Furthermore, these deposits disappear with the diet-therapy. In pediatric field, the diagnostic specificity of mucosal anti-ttg (anti-ttg-m) is between 95-98%, while the sensitivity is 100%. In adults, anti-ttg-m show 100% sensitivity in typical celiac disease (characterized by high serum anti-ttg concentrations and intestinal mucosa atrophy), while no results are available about potential celiac disease. Moreover, in adults data about the specificity of anti-ttg-m in infectious, oncological and inflammatory diseases of the gastro-intestinal tract are not available. The main study objectives are to evaluate anti-ttg-m sensitivity in patients with typical celiac disease and anti-ttg-m specificity in patients with oncological and inflammatory bowel diseases.

NCT ID: NCT05810428 Recruiting - Virtual Reality Clinical Trials

Artificial Intelligence to Predict Surgical Outcomes and Assess Pain Neuromodulation in Trigeminal Neuralgia Subjects

Start date: April 6, 2023
Phase: N/A
Study type: Interventional

Trigeminal neuralgia (TN) is the most common cause of facial pain. Medical treatment is the first therapeutic choice whereas surgery, including Gamma Knife radiosurgery (GKRS), is indicated in case of pharmacological therapy failure. However, about 20% of subjects lack adequate pain relief after surgery. Virtual reality (VR) technology has been explored as a novel tool for reducing pain perception and might be the breakthrough in treatment-resistant cases. The investigators will conduct a prospective randomized comparative study to detect the effectiveness of GKRS aided by VR-training vs GKRS alone in TN patients. In addition, using MRI and artificial intelligence (AI), the investigators will identify pre-treatment abnormalities of central nervous system circuits associated with pain to predict response to treatment. The investigators expect that brain-based biomarkers, with clinical features, will provide key information in the personalization of treatment options and bring a huge impact in the management and understanding of pain in TN.