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Found 10 Actively Recruiting clinical trials
Actively Recruiting
Researchers are exploring new treatment options for neovascular age-related macular degeneration NVAMD, a condition affecting the eyes. This trial aims to compare a new medicine called tiespectus also known as MK-8748 or EYE201 with the standard treatment aflibercept to see if tiespectus works as well in treating NVAMD. The study includes adults aged 50 and older who have not previously received treatment for this condition. Participants will be randomly assigned to one of three groups tiespectus low dose, tiespectus high dose, or aflibercept. Those in the tiespectus groups will receive three initial injections every 4 weeks, followed by injections every 8 weeks up to week 48. After week 48, treatment will continue at intervals based on individual response until week 92. The aflibercept group will receive three initial injections followed by injections every 8 weeks until week 92. During the study, participants will have their vision tested using the Best-Corrected Visual Acuity BCVA score and their eye structure examined with imaging techniques. Researchers will monitor changes in vision over one year and track any side effects up to approximately 96 weeks. Participants will attend regular visits for treatment and assessments throughout the study period lasting about 92 weeks.
Actively Recruiting
This research investigates intravitreal EYE103 in adults with neovascular age-related macular degeneration NVAMD or macular edema caused by branch retinal vein occlusion BRVO. The trial is randomized and dose-masked, including four different patient groups to study different doses and combinations of EYE103, aiming to assess its effects in these eye conditions. Participants are divided into four cohorts treatment-naive NVAMD, incomplete responders IR with NVAMD as monotherapy, IR NVAMD combined with aflibercept, and treatment-naive BRVO. Each cohort randomly receives either a low or high dose of EYE103 via intravitreal injection. All receive three injections spaced 4 weeks apart the IR NVAMD combination group also receives aflibercept on Day 1. Assessments occur at each injection visit and some groups return 2 weeks post-injection for extra evaluations. During the 12-week study, participants undergo safety and efficacy assessments including vision tests using ETDRS charts, slit-lamp exams, fundoscopy, and imaging with spectral domain optical coherence tomography SD-OCT to measure retinal thickness. The studys main measure is the change in best-corrected visual acuity at Week 12. The trial also monitors retinal thickness and vision changes throughout. The Week 12 visit marks the studys end for all participants.
Actively Recruiting
Researchers are investigating the effects of APL-3007 combined with SyfovrePegcetacoplan APL-2 in patients with geographic atrophy caused by age-related macular degeneration AMD. This Phase 2 randomized, placebo-controlled study aims to assess the efficacy, safety, tolerability, and pharmacodynamics of these treatments in this eye condition. The study involves multiple centers and uses a masked design to ensure unbiased results. Participants will be assigned to one of three groups two receiving different doses or frequencies of APL-3007 in combination with pegcetacoplan APL-2, and one receiving a placebo along with pegcetacoplan APL-2. The study will evaluate the treatments given as multidose regimens. The treatments focus on complement C3 inhibition to potentially impact disease progression. Throughout the study, participants will undergo assessments including artificial intelligence-based imaging to measure retinal pigment epithelium lesion area and photoreceptor degeneration, safety evaluations through adverse event reporting and visual acuity tests, and blood tests to assess serum markers. These evaluations occur over 12 months to monitor changes from baseline. Participants involvement includes regular visits for these assessments, with the study tracking treatment effects and safety over the duration.
Actively Recruiting
Researchers are evaluating the safety, tolerability, effectiveness, and how the body processes and responds to osivelotor in people with sickle cell disease SCD. This multicenter, Phase 23 study focuses on both adults and adolescents with SCD, aiming to determine the best dose and assess the drugs effects over time. The study has three parts. Part A tests safety, tolerability, and dose-finding in adults with SCD, starting with randomization to different daily doses of osivelotor, ranging from 100 mg to potentially 200 mg, over 12 weeks. Part B compares osivelotor to placebo in adults and adolescents over 48 weeks, with adults receiving an initial 300 mg daily dose for 7 days followed by 150 mg daily, while adolescent dosing will be defined later. The Open Label Extension OLE offers long-term open-label osivelotor treatment for up to two years after Part B. Participants will be monitored throughout the study with regular visits to assess safety, blood responses, and how well they tolerate the medication. The main results will be reviewed through 12 weeks in Part A, 48 weeks in Part B, and approximately 24 months in the OLE. The study includes blood tests, monitoring of vaso-occlusive crises, and other health evaluations to understand osivelotors effects and safety over time.
Actively Recruiting
Researchers are evaluating the experimental drugs pozelimab and cemdisiran for treating Geographic Atrophy GA, a late stage of Age-related Macular Degeneration AMD that affects central vision. The study aims to compare the progression rate of GA in patients receiving cemdisiran alone, the combination of pozelimab and cemdisiran, or a placebo. Additional goals include monitoring side effects, drug levels in the blood over time, and the bodys antibody response to these drugs. Participants will receive subcutaneous injections of either pozelimab combined with cemdisiran, cemdisiran alone, or a placebo. The study is randomized and double-masked with three groups receiving different treatments. Treatment and monitoring will continue through specified time points up to 104 weeks, with follow-up on safety and antibody responses extending even further. During the study, participants will attend regular clinic visits for eye exams, imaging using Fundus Autofluorescence to measure GA lesion growth, vision tests including visual acuity and contrast sensitivity, and blood tests to assess drug levels and antibody formation. Researchers will track treatment-emergent adverse events and evaluate changes in vision and GA progression over time. Participation lasts until the study completion date in April 2033, with primary outcomes assessed at 52 weeks and further evaluations up to 296 weeks.
Actively Recruiting
Researchers are evaluating the similarity in effectiveness between ABP 938 8 mg and aflibercept 8 mg in adults aged 50 and older with neovascular age-related macular degeneration nAMD. The trial aims to compare the change in best corrected visual acuity BCVA between these two treatments to understand their impact on vision in this condition. This is a Phase 3, randomized, double-masked clinical trial sponsored by Amgen. Participants receive intravitreal injections of either ABP 938 8 mg or aflibercept 8 mg at the start of the study, at Week 4, and at Week 8. After these initial doses, injections continue at intervals determined by disease activity, ranging from every 4 to 16 weeks, with adjustments beginning at Week 16. This treatment schedule continues through the end of the study. During the study, participants are regularly assessed for visual acuity changes, retinal fluid presence, lesion size, and adverse events. Evaluations include imaging like spectral-domain optical coherence tomography SD-OCT and fluorescein angiography FA at various time points up to Week 48. Blood samples are taken to measure drug concentrations and antibody development. Safety and immunogenicity are closely monitored throughout the study, which runs until early 2028.
Actively Recruiting
Researchers are observing how avacincaptad pegol is used in routine clinical practice for people with geographic atrophy caused by age-related macular degeneration AMD. Geographic atrophy is an advanced form of AMD where retinal cells waste away, leading to worsening central vision and potential permanent vision loss. This observational study collects information on treatment and medical events related to avacincaptad pegol without influencing the doctors treatment decisions. Participants in this study have chosen to begin treatment with avacincaptad pegol, delivered as intravitreal injections into the eye. The study records how often and how long the treatment is given, along with reasons for stopping treatment. It monitors participants receiving this treatment in one or both eyes as part of their regular medical care, without additional interventions from the study. During the study, participants will have eye exams as part of their usual care and will complete surveys about their eye health at the start of treatment, every six months for two years, and then yearly. Researchers will gather data from medical records to track treatment usage, vision changes, and any adverse events for up to about five years. This long-term observation helps understand real-world treatment patterns and safety.
Actively Recruiting
Researchers are comparing the rates of surgical and minimally invasive interventions, as well as any harms, in Medicare beneficiaries treated with the MILD procedure versus those treated with interspinous process decompression IPD for lumbar spinal stenosis with neurogenic claudication. This observational study uses Medicare claims data to follow patients for 24 months after their initial procedure starting from January 1, 2017. The purpose is to evaluate outcomes between these two types of procedures without requiring prior patient enrollment or consent. The study includes two groups patients who received MILD, which is a percutaneous image-guided lumbar decompression performed under fluoroscopic guidance through a dorsal approach to the spine, and patients who received IPD, a different device-based decompression procedure. Data on reoperations and complications will be collected for both groups over a 24-month follow-up period using Medicare claims. Enrollment continues until the sponsor decides to stop. Participants involvement is passive as the study uses existing Medicare claims data. Researchers will monitor rates of harms related to the initial procedure and subsequent surgical or minimally invasive interventions over two years. No direct patient visits or interventions are conducted, and the study is exempt from institutional review board oversight. The total study duration extends to December 2026, covering cases treated since early 2017.
Actively Recruiting
Healthy Volunteer
Researchers are studying how drugs given to children and young adults by their healthcare providers work in their bodies. The goal is to find the safest and most effective doses of these understudied drugs currently used as part of standard care. This observational study focuses on children up to 20 years old, including those who are SARS-CoV-2 positive, across various medical conditions. Participants are observed while receiving their prescribed drugs as part of their routine medical care. The study collects bodily fluid samples, such as whole blood and effluent samples, to measure how the drugs are processed in the body. Data collection lasts up to 90 days from consent, with an extended period of up to 210 days for participants with Down Syndrome at designated sites. During the study, participants will have samples taken to measure drug clearance, volume of distribution, elimination rate, half-life, absorption rate, area under the curve, maximum concentration, and time to maximum concentration. These measurements help researchers understand the pharmacokinetics and safety of the drugs. The study is sponsored by Duke University and participation may last several months depending on individual factors.
Actively Recruiting
Researchers are studying the long-term safety and effectiveness of two gene therapies, giroctocogene fitelparvovec and fidanacogene elaparvovec, in adult male patients with Hemophilia A or Hemophilia B. These patients have previously received these treatments in Pfizer-sponsored clinical trials. The study aims to collect data over a period of up to 10 years to monitor important health outcomes related to these therapies. Participants have already been treated with one of the gene therapies in earlier studies and will not receive any new investigational treatment in this study. The study involves ongoing observation and data collection based on standard medical care, without additional treatment interventions. Specific monitoring includes laboratory testing and possibly liver biopsies when clinically necessary to evaluate the presence of the viral vector used in the gene therapies. During the study, participants will have regular visits and assessments to track health outcomes such as thromboembolic events, development of factor inhibitors, liver abnormalities, and factor activity levels over the 10-year period. Researchers will also monitor bleeding rates, immune system responses, serious adverse events, and quality of life measures. The study is designed to provide long-term information on the safety and effectiveness of the prior gene therapy treatments, with participant involvement based on routine clinical care schedules.