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Found 54 Actively Recruiting clinical trials
Actively Recruiting
Researchers are conducting an open-label, multi-center, non-randomized pivotal Phase 3 study to evaluate the effectiveness and safety of PET imaging using [18F]PI-2620 for detecting tau protein buildup in people with Alzheimer's disease and control subjects. The study compares PET imaging results during life with brain tissue analysis obtained after death through autopsy, aiming to improve diagnosis of tau-related brain changes. Participants will receive an intravenous injection of the radioligand [18F]PI-2620 at a dose of 185 MBq 20%. The PET imaging will be performed to visualize tau deposits in the brain. This study focuses on assessing the diagnostic accuracy of this imaging method by comparing it to post-mortem histopathology findings. Throughout the study, participants will undergo PET scans and assessments to determine the presence and extent of tau pathology. The primary outcome measure is the ability of visual assessment of [18F]PI-2620 PET images to correctly distinguish tau neurofibrillary pathology associated with Alzheimer's disease, confirmed at autopsy within about one year. Safety and tolerability during imaging procedures will also be monitored, with a total participation period depending on the timing of brain autopsy after death.
Actively Recruiting
Researchers are evaluating the clinical benefit, performance, and safety of a totally implantable cochlear implant (TICI) system in adults with sensorineural hearing loss. This condition involves damage to the inner ear or auditory nerve, leading to hearing impairment. The investigational device includes a microphone placed under the skin to capture speech and environmental sounds, allowing hearing without visible external parts. The study is pivotal and prospective, focusing on adults aged 18 years and older with bilateral sensorineural hearing loss. Participants will receive the totally implantable cochlear implant system, known as the TI1132 implant, which is designed to improve hearing function. The study is multi-center and pre-market, involving implantation surgery followed by activation of the device. The research will monitor speech recognition performance in quiet environments from before implantation through six months after activation, and will also track any adverse events or device issues up to 12 months post-activation. During the study, participants will undergo hearing tests, including word recognition assessments, and complete questionnaires to evaluate the device's impact on daily life and hearing ability. Safety and device performance will be closely monitored through scheduled follow-ups. The total duration of participant involvement includes preimplantation screening, implantation, activation, and up to one year of post-activation observation to assess both clinical outcomes and any potential complications.
Actively Recruiting
Healthy Volunteer
Researchers are evaluating a vaccine called BLB-201 for respiratory syncytial virus (RSV) in infants and children aged 8 to 59 months. This Phase 1/2a randomized, placebo-controlled trial aims to study the safety, tolerability, and immune response after vaccination. Children included may have had prior RSV infection or not, allowing assessment in both seronegative and seropositive groups. The trial tests two doses of the BLB-201 vaccine: a low dose (10^6 PFU) and a high dose (10^7 PFU). Participants receive either one dose on Day 1 or two doses on Day 1 and Day 57. A placebo group receives a saline solution matching the low dose diluent. The study compares these groups to monitor how the vaccine is handled by the body and whether it produces an immune response. During the study, children are carefully monitored for side effects, including solicited adverse events from Day 1 to 15 and unsolicited events through Day 29. Their health is assessed through medical history, physical exams, and laboratory tests. Researchers track vaccine safety and immune response over the study period, with parents or guardians providing consent and helping with participation. The total study duration and follow-up ensure thorough evaluation of vaccine effects in young children.
Actively Recruiting
Healthy Volunteer
Researchers are studying the immune response and safety of mRNA-1018-H5, a pandemic influenza vaccine, in adults aged 18 years and older. The trial aims to assess how well two doses of this vaccine trigger antibody production and to monitor any side effects or reactions. This is a Phase 3, randomized, observer-blind, placebo-controlled study focused on the influenza virus. Participants will receive either the mRNA-1018-H5 vaccine or a placebo, both provided as sterile liquid injections. The study involves two doses and includes detailed monitoring for immune response and side effects after vaccination. The trial compares the vaccine to a placebo to evaluate its immunogenicity and safety. During the study, individuals will undergo medical evaluations including physical exams and pregnancy testing if applicable. Researchers will measure antibody levels at Day 43 and record any local or systemic reactions up to Day 29 after injections, as well as any adverse events up to Day 205. The study tracks serious and medically-attended adverse events to ensure careful safety monitoring throughout the participation period.
Actively Recruiting
Researchers are evaluating the effectiveness and safety of SP-624 compared to a placebo in adults aged 18 to 65 with moderate to severe Major Depressive Disorder (MDD). This Phase 2B study focuses on treating this condition and assesses changes in depression severity using the Montgomery-Asberg Depression Rating Scale (MADRS) from baseline to week 4. Participants receive either SP-624 or a placebo once daily. The SP-624 treatment consists of two capsules taken orally each day, providing a total dose of 20 mg. Those in the placebo group take two matching placebo capsules daily. The study is designed as a multi-center, double-blind, randomized, placebo-controlled trial. During the study, participants will be monitored for changes in depression severity through the MADRS assessment from the start of the study to week 4. Researchers will also evaluate safety and tolerability throughout the treatment period. The total study duration and specific follow-up details are not provided but include careful observation of participants' health and response to treatment.
Actively Recruiting
Researchers are evaluating two treatment combinations for patients with melanoma that has spread to the brain and has a specific BRAF-V600 mutation. This phase II trial compares encorafenib, binimetinib, and nivolumab against ipilimumab and nivolumab to determine which approach better controls and shrinks brain metastases from melanoma. The study also aims to assess overall survival, response rates, treatment duration, and side effects of each regimen. Participants are randomly assigned to one of two groups. One group receives encorafenib orally once daily, binimetinib orally twice daily, and nivolumab intravenously every 28 days. The other group receives nivolumab intravenously and ipilimumab intravenously during the first four cycles, with cycles every 21 days initially, then every 28 days thereafter. Treatment continues unless the disease worsens or side effects become unacceptable. After treatment ends, participants have follow-up visits every six months for two years, then yearly until three years after starting the study. During the trial, participants undergo brain MRIs to monitor tumor response using standardized criteria. Imaging, tumor tissue, spinal fluid, stool, and blood samples are collected for research. Safety and effectiveness are carefully assessed through scans, physical exams, lab tests, and side effect monitoring. Progression-free survival up to three years after randomization is the main outcome. Participants remain in the study for about three years with periodic evaluations to track their health and disease status.
Actively Recruiting
Researchers are evaluating two surgical procedures, bilateral salpingectomy and bilateral salpingo-oophorectomy, to see how well they reduce the risk of ovarian cancer in women who have BRCA1 gene mutations. The study aims to determine if removing just the fallopian tubes (bilateral salpingectomy) is almost as effective as removing both the fallopian tubes and ovaries (bilateral salpingo-oophorectomy) in lowering ovarian cancer risk. This trial also assesses symptoms related to estrogen loss, quality of life, sexual function, cancer-related distress, decision-making about surgery, and treatment side effects in these patients. Participants choose between two groups: one group undergoes bilateral salpingectomy and may have their ovaries removed later, while the other group undergoes bilateral salpingo-oophorectomy. Both groups receive pelvic or transvaginal ultrasounds or pelvic MRI scans during screening, and blood samples are collected throughout the trial. Ancillary studies include quality-of-life assessments and questionnaires. The study also collects tissue and blood samples for future research. After surgery, participants have follow-up visits at 10 to 60 days, then at 6, 12, and 24 months, and annually for up to 20 years. Researchers monitor the time until any high-grade serous carcinomas develop, specifically ovarian, primary peritoneal, or fallopian tube cancers. They also track menopausal symptoms, sexual function, quality of life, cancer distress, medical decisions about surgery, and any adverse events during this long-term follow-up.
Actively Recruiting
Researchers are evaluating how well the 20-valent pneumococcal conjugate vaccine (20vPnC) protects adults aged 65 and older who are hospitalized with radiologically-confirmed community-acquired pneumonia (RAD+CAP). The study focuses on pneumonia caused by seven new types of the Streptococcus pneumoniae bacteria included in the 20vPnC vaccine. This observational study uses a test-negative design to compare the presence of these specific bacterial types in vaccinated and non-vaccinated participants. Participants provide a urine sample that is tested with BinaxNOW4 S. pneumoniae and serotype-specific urinary antigen detection (UAD) assays to detect the bacteria and its strains. Cases are defined as participants with pneumonia caused by the seven additional serotypes in 20vPnC beyond those in the 13-valent vaccine, plus serotype 15C. Controls include participants without these vaccine serotypes or with pneumonia caused by other agents. The main diagnostic procedure is the non-invasive urine test, and all participants are hospitalized adults aged 65 or older with pneumonia confirmed by chest imaging. Participants share demographic and medical history information and undergo urine testing during their hospital stay, which typically lasts 1 to 2 days for study procedures. Researchers collect data on illness and hospitalization for up to 30 days through medical chart reviews. The primary outcome measures how effective 20vPnC is against pneumonia caused by the additional serotypes over a 55-month period, helping to understand the vaccine's real-world performance in this older population.
Actively Recruiting
Researchers are evaluating ACP-204, a drug that blocks a specific serotonin receptor, in adults aged 55 to 95 with Alzheimer's Disease Psychosis (ADP). The study is designed as a master protocol with three independent, multicenter, randomized, double-blind, placebo-controlled trials. The trials include Phase 2 and Phase 3 studies to assess the drug's effectiveness and safety in treating psychotic symptoms associated with ADP. The research involves three substudies. Substudy 1 (Phase 2) tests two doses of ACP-204, 30 mg and 60 mg, against a placebo to evaluate dose response. Substudies 2A and 2B (both Phase 3) will independently confirm the effects of either both doses or a single dose from Part 1 compared to placebo. Each substudy includes a screening period of up to 49 days, a six-week double-blind treatment phase, and a 30-day safety follow-up for those not continuing into an open-label extension. Vital status follow-up is conducted for participants who end the study early. Participants will receive regular assessments, including evaluations of psychotic symptoms using the Scale for the Assessment of Positive Symptoms-Hallucinations and Delusions subscales from baseline to Week 6. Other study involvement includes brain imaging scans and biomarker tests to confirm Alzheimer's disease diagnosis, cognitive testing, and monitoring of safety and vital status throughout the study periods. Stable living arrangements and support from a caregiver are required to complete all study visits.
Actively Recruiting
Researchers are evaluating the effect of adding chemotherapy to immunotherapy (pembrolizumab) compared to using immunotherapy alone in treating older adults aged 70 and above with advanced non-small cell lung cancer (stage IIIB-IV). This phase III trial aims to determine if combining chemotherapy with pembrolizumab improves overall survival and other outcomes like progression-free survival, response rates, toxicity, and quality of life in this vulnerable patient group. Participants are randomly assigned to one of two treatment groups. In the immunotherapy-alone group, patients receive pembrolizumab intravenously every 21 days for four cycles, followed by maintenance pembrolizumab every 21 or 42 days for up to two years if there is no disease progression or unacceptable side effects. In the combination group, patients receive pembrolizumab plus a chemotherapy regimen chosen by their doctor, including drugs such as pemetrexed, carboplatin, nab-paclitaxel, or paclitaxel, given intravenously on specific schedules for four cycles, followed by the same pembrolizumab maintenance. Imaging scans like MRI, CT, and PET are performed at baseline and throughout the study. During the study, participants undergo various assessments including imaging scans, laboratory tests, and questionnaires to evaluate treatment effects, side effects, and quality of life. Researchers monitor overall survival for up to five years from randomization, with follow-up visits every three months for the first two years and every six months thereafter until five years. Additional exploratory analyses include safety, tolerability, and correlations with gut microbiome and geriatric assessments to better understand treatment outcomes in this population.
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