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15 studies

Recruiting now, in plain language. Every study is watched over by an independent ethics board.

  • Parkinson's disease

    A Study of CREXONT (Carbidopa and Levodopa) Extended-Release Capsules in Participants With Parkinson's Disease

    Testing a carbidopa and levodopa extended-release capsule in people with Parkinson’s

    📍 Barrow Neurological Institute · Phoenix, AZ · +26 more US sites · Get directions →

    The primary purpose of this study is to evaluate efficacy and safety of CREXONT under real world conditions in participants with Parkinson disease (PD).

    ✓ Study care freePhase 4Ages 18+Learn more →
  • Parkinson's disease

    Cortical Electrophysiology of Response Inhibition in Parkinson's Disease

    Studying how deep brain stimulation in Parkinson’s affects brain control of stopping actions

    📍 Emory University Hospital · Atlanta, GA · +1 more US site · Get directions →

    Patients with Parkinson's Disease will be studied before, during, and after a deep brain stimulation implantation procedure to see if the stimulation location and the size of the electrical field produced by subthalamic nucleus (STN) DBS determine the degree to which DBS engages circuits that involve prefrontal cortex executive functions, and therefore have a direct impact on the patient's ability to inhibit actions.

    ✓ Study care freePhase 4Ages 45–75Learn more →
  • Sickle cell disease

    Prophylactic Transfusion In Pregnant in Women With Sickle Cell Disease

    Testing whether routine red blood cell transfusions in pregnancy reduce sickle cell flare-ups or

    📍 Grady Health System · Atlanta, GA · Get directions →

    The goal of this study is to determine if there is a positive effect of prophylactic red blood cell (RBC) transfusion of leukoreduced, ABO, Rh (D/Cc/Ee) and Kell matched blood compared to standard of care on the number of episodes of acute sickle cell disease (SCD) manifestations or pregnancy-related complications requiring acute health care encounters (acute care/ER/Hospital visits) or resulting in death over the entirety of pregnancy until 2 months post-partum in women with SCD. RBC transfusion is the only disease-modifying therapy for pregnant women with SCD, and it is considered a standard treatment option however, there exists no consensus on the role of transfusion therapy in preventing SCD-related pregnancy complications.

    ✓ Study care freePhase 4Ages 18+WomenLearn more →
  • Parkinson's disease

    BOOST-PD A Naturalistic Study on IPX-203 for Parkinson's Disease

    Testing a new long-acting levodopa dose to improve “on” time in Parkinson’s

    📍 Cleveland Clinic · Cleveland, OH · Get directions →

    The purpose of this study is to evaluate the effect of IPX203 (Crexont®) - the newest extended-release levodopa formulation - on the duration and quality of good on time, using a wearable device to monitor symptoms. 'Good on time' refers to a period (minutes to hours) when a patient experiences optimal symptom control due to effective medication and has better overall functioning without troublesome dyskinesias.

    ✓ Study care freePhase 4Ages 40+Learn more →
  • Sickle cell disease

    Effectiveness of Nontraditional Hydroxyurea Algorithms: Novel and Clinical Evaluations (ENHANCE)

    Testing different ways to use hydroxyurea for treating sickle cell anemia

    📍 Cincinnati Children's Hospital Medical Center · Cincinnati, OH · Get directions →

    The main reason for this research study is to learn more about hydroxyurea and the treatment of sickle cell anemia (SCA). Hydroxyurea is a medication that has been studied for many years and has been shown to provide benefits for people with SCA.

    ✓ Study care freePhase 4Ages 1+Learn more →
  • Parkinson's disease

    Pimavanserin vs. Quetiapine for Treatment of Parkinson's Psychosis

    Comparing treatments to see which works better for hallucinations in Parkinson’s disease

    📍 Southern Arizona VA Health Care System, Tucson, AZ · Tucson, AZ · +23 more US sites · Get directions →

    Patients with Parkinson's disease (PD) sometimes experience symptoms affecting their movement, such as slowness, tremor, stiffness, and balance or walking problems. Many patients also have other symptoms not related to movement, called non-motor symptoms, which may affect one's mood or emotions, memory or thinking, or cause one to see or hear things that aren't real (hallucinations) or believe things that aren't true (delusions).

    ✓ Study care freePhase 4Ages 40+Learn more →
  • Sickle cell disease

    Clinical and Biomarker Effects of Depot Medroxyprogesterone Acetate in Females With Sickle Cell Disease

    Testing an injectable birth control shot to reduce pain in women with sickle cell disease

    📍 Emory University · Atlanta, GA · +1 more US site · Get directions →

    This research is being conducted to see if using an injectable contraception, Depot Medroxyprogesterone Acetate (Depo-Provera), can reduce the pain experienced by women with sickle cell disease. Participants in this study will be adult women with sickle cell disease who regularly experience sickle cell pain.

    ✓ Study care freePhase 4Ages 18–50WomenLearn more →
  • Dementia / Alzheimer'sParkinson's disease

    Elucidating the Role of Cholinergic Degeneration in Cognitive Fluctuations in Lewy Body Dementia

    Studying how nerve cell loss affects thinking ups and downs in Lewy body dementia

    📍 Virginia Commonwealth University · Richmond, VA · Get directions →

    The proposed study aims to address the critical gaps in understanding the mechanisms of CF (Cognitive Fluctuations) by leveraging recently emerged molecular biomarkers, advanced neuroimaging techniques to assess measures of cholinergic degeneration, and synchronous EEG and assessments of attention. One of the overarching innovations of study is combining all of these assessments into one integrated research plan

    ✓ Study care freePhase 4Ages 50–89Learn more →
  • Obesity / overweightType 2 diabetesHeart / cardiovascular disease

    Pioglitazone on Heart Failure in Type-2 Diabetes Mellitus Participants

    Testing the diabetes medicine pioglitazone in people with type 2 diabetes, obesity, and heart

    📍 Texas Diabetes Institute/UH · San Antonio, TX · Get directions →

    Our goal of the study is to learn the effects of the diabetes medication named Pioglitazone, in type-2 diabetic obese participants with Heart failure. The main question it aims to answer are: 1.

    ✓ Study care freePhase 4Ages 30–70Learn more →
  • Parkinson's disease

    Personalized Real-Time DBS and PD Mechanisms

    Studying how closed-loop deep brain stimulation and levodopa affect Parkinson’s motor symptoms

    📍 Cleveland Clinic · Cleveland, OH · Get directions →

    A prospective cohort of patients scheduled to undergo deep brain stimulation (DBS) implantation surgery for the treatment of Parkinson's disease as per standard of care will be invited to participate in this study. This mechanistic study is aimed at better understanding the role of basal ganglia beta band (11-35 Hz) oscillations and resonance in the manifestation of Parkinson's disease (PD) motor signs using closed-loop electrical neurostimulation, levodopa medication, and computational modeling.

    ✓ Study care freePhase 4Ages 18–80Learn more →
  • Heart / cardiovascular diseaseDementia / Alzheimer's

    Pragmatic Evaluation of Events And Benefits of Lipid-lowering in Older Adults

    Testing whether lowering cholesterol in older adults affects heart and memory outcomes

    📍 University of Alabama at Birmingham · Birmingham, AL · +37 more US sites · Get directions →

    PREVENTABLE is a multi-center, randomized, parallel group, placebo-controlled superiority study. Participants will be randomized 1:1 to atorvastatin 40 mg or placebo.

    ✓ Study care freePhase 4Ages 75+Learn more →
  • Sickle cell disease

    Rollover Study for Patients With Sickle Cell Disease Who Have Completed a Prior Novartis-Sponsored Crizanlizumab Study

    Study allowing people with sickle cell disease who finished a prior treatment study to keep getting

    📍 University Of Alabama · Birmingham, AL · +6 more US sites · Get directions →

    This is a multi-center multi-national rollover study to allow continued access to crizanlizumab for patients with sickle cell disease (SCD) who are on crizanlizumab treatment in a Novartis-sponsored study (parent study) and are benefiting from the treatment as judged by the investigator.

    ✓ Study care freePhase 4Ages 1–100Learn more →
  • Parkinson's disease

    Characterization of the Serotonin 2A Receptor Selective PET Tracer [18F]MH.MZ in Patients With Neurodegenerative Diseases

    Measuring serotonin 2A brain receptor activity in people with Parkinson’s

    📍 Vanderbilt University Medical Center · Nashville, TN · Get directions →

    It is hypothesize that patients with clinically diagnosed neurodegenerative diseases will have significantly different receptor occupancy of 5HT2A receptors compared to a healthy age/sex-matched control group. This will be tested by measuring 5HT2A receptor density using the PET radioligand (R)-\[18F\]MH.MZ in both populations.

    ✓ Study care freePhase 4Ages 50–85Learn more →
  • Dementia / Alzheimer'sParkinson's disease

    Comparing Antipsychotic Medications in LBD Over Time

    Comparing medicines to see which works better for hallucinations or delusions in Lewy body disease

    📍 University Health System · San Antonio, TX · +1 more US site · Get directions →

    The primary objective of this study is to determine whether treatment with pimavanserin or quetiapine is associated with a greater improvement in psychosis when used in a routine clinical setting to treat hallucinations and/or delusions due to Parkinson's disease (PD) or dementia with Lewy bodies (DLB) - collectively referred to as Lewy body disease (LBD).

    ✓ Study care freePhase 4Learn more →
  • Type 2 diabetesHeart / cardiovascular disease

    Effect of Tirzepatide on Progression of Coronary Atherosclerosis Using MDCT

    Testing tirzepatide to see if it slows plaque buildup in heart arteries in people with type 2

    📍 Lundquist Institute for Biomedical Innovation at Harbor UCLA Medical Center (The Lundquist Institute) · Torrance, CA · Get directions →

    A multi-center, randomized, double-blind, placebo-controlled, parallel-group phase IV Study evaluating the effects of tirzepatide on atherosclerotic plaque progression assessed by coronary computed tomography angiography (CCTA) in participants with a diagnosis of type II Diabetes (T2DM) and atherosclerosis.

    ✓ Study care freePhase 4Ages 40–80Learn more →