Magnetic Resonance Imaging

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108 Magnetic Resonance Imaging Trials Near You

Power is an online platform that helps thousands of Magnetic Resonance Imaging patients discover FDA-reviewed trials every day. Every trial we feature meets safety and ethical standards, giving patients an easy way to discover promising new treatments in the research stage.

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No Placebo
Highly Paid
Stay on Current Meds
Pivotal Trials (Near Approval)
Breakthrough Medication
This study is a postmarketing requirement jointly carried out by four NDA holders (Bayer AG, Bracco, GE Healthcare and Guerbet) and the CRO IQVIA. The study aims to create detailed images of the organs and tissue of the human body during x-ray, CT-scan or MRI investigations, doctors are using contrast media (a kind of dye) which can be given to patients by injection into a blood vessel or by mouth. In this study researchers want to find out whether so called gadolinium-based contrast agents (GBCAs) have an effect on body movement and mental skills when given to participants multiple times within 5 years. The study plans to enroll about 2076 participants suffering from a condition for which they are likely to have at least annually a MRI or another imaging examinations. Only adults up to 65 years will be considered to join this study. During the study duration of 5 years participants will receive annually a MRI or other imaging tests (such as CT-scan, x-ray) and will visit the study doctor at least 7 times for physical examinations, laboratory investigations and tests on body movement and mental skills.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 4
Age:18 - 64

2076 Participants Needed

This study uses functional magnetic resonance imaging to map neural activity throughout the central nervous system during a shoulder abduction task to characterize what motor pathways are being used post-stroke.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased

32 Participants Needed

The purpose of this study is to understand the neurophysiological mechanisms of peripheral electrical stimulation (PES) in modulating supraspinal tremorogenic input to motoneurons. For this purpose, the investigators will use transcutaneous PES, high-density electromyography (HD-EMG), transcranial magnetic stimulation (TMS), electroencephalography (EEG), magnetic resonance imaging (MRI), and neuromusculoskeletal modelling. This study will be carried out in both healthy participants and patients with essential tremor (ET) and Parkinson's disease (PD).
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased

180 Participants Needed

It has been estimated that 300 million people worldwide have osteoarthritis (OA), and this has increased by 97% over the past 25 years. OA is degenerative joint disease that has joint cartilage break down and causes the surrounding bone to change and rub. The pain and loss of mobility experienced by people with knee OA can seriously reduce quality of life, while pain management causes significant healthcare spending. Unfortunately, the pain associated with OA is complex and difficult to treat other than to have a total knee replacement surgery to replace the damaged bone and surrounding tissues with artificial ones. Our research study plans to use advanced magnetic resonance imaging techniques and novel analysis methods to determine if specific parts of the brain are responsible for difficult to describe and diagnose aspects of chronic pain. This study will help us better understand the effects of chronic pain in the brain and the results will help guide future research into new therapeutic options that would focus on relieving the brain dysfunction caused by chronic pain.
No Placebo Group

Trial Details

Trial Status:Not Yet Recruiting
Trial Phase:Unphased

66 Participants Needed

The goal of this randomized placebo controlled crossover trial is investigate the effects of short-term ketone monoester (KME) supplementation to brain function in older adults with subjective cognitive decline. We will test the hypothesis that KME supplementation will increase cerebral blood flow and improve resting-state functional connectivity in the brain compared to placebo supplementation in older adults with subjective cognitive decline. Participants will be randomly assigned to either placebo of KME supplementation for 14 days. Following a washout period, participants will complete the alternate condition for 14 days. Outcome measures will be assessed before and after each intervention period.

Trial Details

Trial Status:Not Yet Recruiting
Trial Phase:Phase 2
Age:55 - 75

48 Participants Needed

A biomarker is a measurable indicator of the severity or presence of some disease state. In this study, brain metastases patients who will be receiving radiation treatment, will undergo CT (Computed Tomography) and MRI (Magnetic Resonance Imaging) scans prior to and after radiation treatment to measure these biomarkers. This is a single-center phase II study to validate the predictive abilities of biomarkers, in terms of determining how patients will respond to radiation treatment.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 2

90 Participants Needed

Aim of this study is to evaluate image quality and reproducibility of Xenon-129 and Inert fluorinated (19F) gas Magnetic Resonance Imaging (MRI) and to evaluate changes in lung structure and function in participants with cystic fibrosis (CF) and asthma compared to healthy controls.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 2
Age:8+

30 Participants Needed

This study seeks to explore the effects of transcranial direct current stimulation (tDCS), a non-invasive method of brain stimulation, as an adjunctive treatment to improve antipsychotic medication adherence in patients with schizophrenia (SCZ). The investigators hypothesize that 20 sessions of tDCS will improve medication nonadherence in patients with SCZ.
Stay on current meds

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased

106 Participants Needed

tDCS for Schizophrenia

Toronto, Ontario
This is a novel study that seeks to explore the clinical and functional imaging effects of transcranial direct current stimulation (tDCS) on illness awareness or anosognosia in schizophrenia, arguably the most treatment-resistant manifestation of the disorder.
No Placebo Group

Trial Details

Trial Status:Recruiting

34 Participants Needed

This study aims to determine the clinical and functional imaging effects of serial CVS on illness awareness in schizophrenia. Specifically, the investigators aim to: 1. Determine if twice-daily CVS for 4 weeks will improve illness awareness compared to the sham condition in participants with schizophrenia. Illness awareness will be assessed at pre- and post-CVS, and weekly thereafter for 4 weeks. 2. Examine changes in brain network activity (blood oxygen level dependent-BOLD in response to an illness awareness task) pre- and post-CVS. This will serve as a biomarker to rigorously test whether repeated CVS engages the PPA associated with illness awareness.

Trial Details

Trial Status:Recruiting

34 Participants Needed

The current clinical trial is focused on evaluating the efficacy of rTMS for treatment of depression in youth and young adults (hereafter called transition aged youth, TAY) with autism spectrum disorder (ASD). The motivation to undertake the current efficacy study is driven by: (1) the substantial impact of depression on TAY with ASD (based on prevalence and contribution to disability/impairment); (2) lack of evidence-based treatments for depression in autism (there are no current trials rigorously evaluating any treatment for depression, i.e., psychotherapeutic, pharmacotherapeutic, brain stimulation); (3) rTMS has demonstrated efficacy in non-autistic individuals to improve symptoms of depression and may be better tolerated in youth than medication treatment; (4) a prior pilot rTMS study focused on treatment of executive function deficits in autism indicated that high frequency rTMS delivered using a rigorous randomized control trial (RCT) protocol can be feasibly implemented in TAY with autism, is well tolerated (mild to moderate adverse effects and low drop out), and has the potential to improve symptoms of depression.

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased
Age:16 - 35

80 Participants Needed

Females treated with antipsychotics have higher rates of comorbid metabolic syndrome than males. Despite this, females have historically been excluded from many mechanistic studies due to confounding effects of menstrual cycles. Recent evidence suggests that brain insulin resistance may be an underlying mechanism through which antipsychotics may exert their metabolic side effects. This study seeks to investigate how brain insulin action differs in females according to their menstrual cycle phase, and how a high metabolic liability agent such as olanzapine might interrupt these differential insulin effects. Young healthy females will be given olanzapine and intranasal insulin to test how these treatment combinations change brain processes. Participants will be tested during both the first half of their menstrual cycle (follicular phase) and the second half of their cycle (luteal phase). The investigators predict that intranasal insulin will change MRI-based measures in females, in a comparable way to males, in the follicular phase only. Adding olanzapine will block these effects of insulin in females in the follicular phase. This investigation has the potential to generate new knowledge in an area of significant unmet need. Demonstrating that antipsychotics disrupt brain insulin action, evidenced by inhibition of recognized effects of insulin on neuroimaging measures, will provide novel insights into currently poorly understood mechanisms.

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased
Age:18 - 35
Sex:Female

15 Participants Needed

Primary sclerosing cholangitis (PSC) is a chronic liver disease that can lead to liver cirrhosis, liver failure and liver cancer. Assessment of disease status is important to determine optimal treatment but the diagnosis of PSC is challenging. There is a dire need of an accurate non-invasive tool for longitudinal assessment of PSC. MR Elastography (MRE) has been recently proven to estimate liver fibrosis noninvasively and accurately. Estimation of liver fibrosis by MRE along with imaging derived morphological information (MRCP) will be utilized in this study comprehensively to provide a surrogate non-invasive imaging biomarker for monitoring disease status in PSC. Successful outcomes will provide an opportunity for optimal treatment triage including liver transplantation via accurate and non-invasive estimation of true disease status in PSC.
No Placebo Group

Trial Details

Trial Status:Active Not Recruiting
Trial Phase:Unphased

82 Participants Needed

Background: - High blood pressure in the lungs, known as pulmonary arterial hypertension (PAH), is a rare disorder. In spite of recent advances in treatment, the death rate remains unacceptably high. Lung blood vessel function can be harmed by progressive injuries, such as inflammation, leading to worsening of the disease. A drug called spironolactone has been known to improve blood vessel function and reduce inflammation. Some people with PAH take spironolactone to help treat fluid retention. However, its effect on inflammation and blood vessel function in patients with PAH is not known. Researchers want to see if spironolactone can help these conditions in people with PAH. Objectives: - To test the effectiveness of spironolactone in treating pulmonary arterial hypertension. Eligibility: - Individuals at least 18 years of age with pulmonary arterial hypertension. Design: * This study will last for 24 weeks. Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected. * Participants will take either spironolactone or a placebo. They will take their study drug or placebo for 7 weeks. Treatment will be monitored with regular blood tests. * In Week 8, participants who have had no reaction to the treatment will receive a higher dose of the drug or placebo. * In Week 12, participants will have a study visit with heart and lung function tests. They will also have a 6-minute walk test, and provide blood and urine samples. * After additional study visits for blood samples, participants will have a final visit in Week 24. The tests from Week 12 will be repeated at this visit.

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 2

70 Participants Needed

Background: Most medications that treat depression take weeks or months to work. Researchers want to develop fast-acting treatments. One dose of ketamine has a rapid antidepressant effect. For most people, this lasts a week or less. Repeated doses of ketamine may help maintain this effect. Objective: Main Study: To study the effects of ketamine in treating depression. Ketamine Metabolites Substudy: To study how ketamine effects brain chemistry. To study how ketamine effects the brain. This is done by looking at metabolites, which are created when a drug is broken down. Eligibility: Main Study: People ages 18-65 with major depressive disorder and healthy volunteers Ketamine Metabolites Substudy: Healthy volunteers ages 18-65 Design: Main Study: Participants will be screened in another study, with: * Medical and psychiatric history * Psychiatric and physical exam * Blood, urine, and heart tests Participants will be inpatients at NIH for 4 phases totaling 14-20 weeks. Phase I (2-7 weeks): * Gradually stop current medications * MRI: Participants lie and perform tasks in a machine that takes pictures of the body. * Mood and thinking tests * Blood and urine tests * Sleep test: Monitors on the skin record brain waves, breathing, heart rate, and movement during sleep. * Transcranial magnetic stimulation: A coil on the scalp gives an electrical current that affects brain activity. * Stress tests: Electrodes on the skin measure reactions to loud noises or electric shocks. Phase I tests are repeated in Phases II and III and in the final visit. Phase II (4-5 weeks): * 4 weekly IV infusions of ketamine or a placebo during an MRI or MEG. For the MEG, a cone over the head records brain activity. Phase III (optional): * 8 infusions of ketamine over 4 weeks Phase IV (optional): * Symptoms monitoring for 4 weeks * Participants will have a final visit. They will be offered standard treatment at NIH for up to 2 months. Ketamine Metabolites Substudy: Participants will be screened in another study, with: * Medical and psychiatric history * Psychiatric and physical exam * Blood, urine, and heart tests Participants will be inpatients at NIH for 4 days. Study Procedures: Mood and thinking tests Blood and urine tests 1 infusion of ketamine Spinal tap and spinal catheter: Used to get samples of cerebrospinal fluid (CSF). This is a fluid that moves around and within the brain and spinal cord. Studying CSF will help us learn how ketamine effects brain chemistry

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 1
Age:18 - 65

150 Participants Needed

The integration of magnetic resonance imaging (MRI) in the treatment planning process for prostate cancer will reduce uncertainties in delineation of the prostate gland, and will enable delineation of the urethra, penile bulb, and internal pudendal artery. The integration of daily cone-beam computed tomography (CBCT) will markedly reduce set-up uncertainties, thereby reducing the minimum planning target volume (PTV) margin. By combining MRI simulation and daily CBCT, and by adapting radiation delivery accordingly, the investigators will reduce dose delivered to the rectum, bladder, urethra, and erectile structures. In this study, the investigators seek to determine whether this dose reduction translates to improved patient outcomes. In a prospective, 2-stage design, up to 190 patients will be enrolled. In the first stage, advanced imaging will be integrated without altering dose planning techniques. Stage 2 will reduce dose delivered to normal tissues, and will collect toxicity outcome measures. This clinical trial will be conducted over 3 years.
No Placebo Group

Trial Details

Trial Status:Active Not Recruiting
Trial Phase:Unphased
Sex:Male

99 Participants Needed

Background: People with the brain disease AUD (alcohol use disorder) have a serious problem with drinking. Researchers want to study how different people react to alcohol, and how genes affect this. They will focus on a nicotine receptor gene that may increase a person s AUD risk. Objectives: To see if people with variations of a nicotine receptor gene take alcohol differently and have different brain responses to alcohol cues. Eligibility: Healthy adults ages 21 - 60. This study includes smokers and non-smokers. Design: Participation will be based on evaluation under the NIAAA natural history protocol (14-AA-0181) or a screening visit under this protocol. Participants will have two 9-hour visits. They must have no alcohol or non-prescription drugs before all visits and no food or drink before the first visit. At every visit, participants will: * Get a light meal * Have breath and urine tests * Get taxi rides there and back At visits 1, participants will: * Have a thin plastic tube inserted in an arm and connected to a pump for alcohol infusion. * Have sensors on their chest to monitor heart rate. * Sit in a chair for 2.5 hours and get alcohol by pushing a button. Their breath alcohol level will be monitored. * Answer questions about mood and effects of alcohol * Give blood samples * Relax at the clinic while their breath alcohol level drops At visit 2, participants will: * Answer questions and do computer tests * Have an alcoholic drink and a snack * Have a magnetic resonance imaging (MRI) scan. They will lie in a machine that takes pictures of the brain. They will do computer tasks. * Have another drink and snack * Relax until their alcohol level drops Participants will have a follow-up call after each visit.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 1
Age:21 - 60

128 Participants Needed

The purpose of this study is to investigate the efficacy, safety, and tolerability of two dorsolateral prefrontal cortex (DLPFC) repetitive transcranial magnetic stimulation (rTMS) protocols to alleviate symptoms of depression in United States (U.S.) military service members and veterans with a history of concussion/mild traumatic brain injury (TBI).

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased
Age:18 - 55

198 Participants Needed

Background: - Magnetic resonance imaging (MRI) is a widely used scanning technique to obtain images of the human body and evaluate activity in the brain. A particular MRI method called magnetic resonance spectroscopy (MRS) can be used to study brain chemistry as well, which may help researchers who are studying new treatments for psychiatric illnesses. Researchers are interested in improving current MRI and MRS techniques, as well as developing new MRI and MRS techniques to view and measure brain chemicals and brain activity. Objectives: - To implement, develop, and optimize brain chemistry imaging techniques using magnetic resonance imaging and magnetic resonance spectroscopy. Eligibility: - Healthy individuals between 18 and 65 years of age. Design: * This study will involve a screening visit and a scanning visit at the National Institutes of Health Clinical Center. * Participants will be screened with a full medical and physical examination, blood and urine tests, and neurological testing. * During the second visit, participants will have an MRI scan of the brain. (Participants who have received an MRI within the past year will not need to have a second one; the images of the previous scan will be used for this study.) All participants will then have an MRS scan using the same scanning equipment....
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased
Age:18 - 65

300 Participants Needed

Background: The chemical messenger dopamine carries signals between brain cells. It may affect addiction. Heavy use of pain medicines called opioids may decrease the amount of dopamine available to the brain. Researchers want to study if decreased dopamine decreases self-control and increases impulsiveness. Objective: To learn more about how opiate use disorder affects dopamine in the brain. Eligibility: Adults 18-80 years old who are moderate or severe opiate users Healthy volunteers the same age Design: Participants will first be screened under another protocol. They will: * Have a physical exam * Answer questions about their medical, psychiatric, and alcohol and drug use history * Take an MRI screening questionnaire * Give blood and urine samples * Have their breath tested for alcohol Participants will have up to 3 study visits. They will have 2-3 positron emission tomography (PET) scans. A radioactive chemical will be injected for the scans. Participants will lie on a bed that slides in and out of the donut-shaped scanner. A cap or plastic mask may be placed on the head. Vital signs will be taken before and after the PET scans. Participants will get capsules of placebo or the study drug. They will rate how they feel before, during and after. Participants will have their breath and urine tested each day. Participants will have magnetic resonance imaging (MRI) scans. They will lie on a table that slides into a cylinder in a strong magnetic field. They may do tasks on a computer screen while inside the scanner. Participants will have tests of memory, attention, and thinking. Participants will wear an activity monitor for one week....

Trial Details

Trial Status:Recruiting
Trial Phase:Early Phase 1

360 Participants Needed

Why Other Patients Applied

"I changed my diet in 2020 and I’ve lost 95 pounds from my highest weight (283). I am 5’3”, female, and now 188. I still have a 33 BMI. I've been doing research on alternative approaches to continue my progress, which brought me here to consider clinical trials."

WR
Obesity PatientAge: 58

"I have dealt with voice and vocal fold issues related to paralysis for over 12 years. This problem has negatively impacted virtually every facet of my life. I am an otherwise healthy 48 year old married father of 3 living. My youngest daughter is 12 and has never heard my real voice. I am now having breathing issues related to the paralysis as well as trouble swallowing some liquids. In my research I have seen some recent trials focused on helping people like me."

AG
Paralysis PatientAge: 50

"My orthopedist recommended a half replacement of my right knee. I have had both hips replaced. Currently have arthritis in knee, shoulder, and thumb. I want to avoid surgery, and I'm open-minded about trying a trial before using surgery as a last resort."

HZ
Arthritis PatientAge: 78

"I've tried several different SSRIs over the past 23 years with no luck. Some of these new treatments seem interesting... haven't tried anything like them before. I really hope that one could work."

ZS
Depression PatientAge: 51

"As a healthy volunteer, I like to participate in as many trials as I'm able to. It's a good way to help research and earn money."

IZ
Healthy Volunteer PatientAge: 38
Background: Major depressive disorder (MDD) is one of the most impairing medical conditions in the world. Medication and some kinds of talk therapy are standard treatments for teens with MDD, but these do not work well for everyone. Transcranial magnetic stimulation (TMS) has been approved to treat MDD in adults. TMS might help adolescents, too. Objective: To test TMS combined with cognitive behavioral therapy (CBT) in teens with MDD. Eligibility: People aged 13 to 17 years with MDD that has not responded to treatment. Design: Participants will be screened. They will have a physical exam and psychiatric evaluation. They will have an MRI scan and a test of their heart function. They will enroll in 2 NIH protocols (01-M-0254 and 18-M-0037). For 2 to 6 weeks, participants will have weekly CBT, a kind of talk therapy. They will taper off of their psychiatric medicines. For 2 weeks, participants will come to the clinic every weekday. They will receive 3 or 4 sessions of TMS on each of those days. A wire coil will be held on their scalp. A brief electrical current in the coil creates a magnetic pulse that affects brain activity. They will receive 30 TMS pulses in 10-second bursts; these will be repeated 60 times in each 15-minute session. Participants may hear a click and feel a pulling sensation under the coil. They may feel their muscles twitch. Each day, they will have tests of concentration, thinking, and memory. Some may have a 3rd week of TMS. Participants will remain in the study for 5 more weeks. They will begin taking their medications again.
No Placebo Group

Trial Details

Trial Status:Recruiting
Age:13 - 17

80 Participants Needed

Study Description: This study examines relations between neurocognitive and clinical features of pediatric anxiety disorders. The study uses neuro-cognitive tasks, functional magnetic resonance imaging (fMRI), as well as magneto- and electro-encephalography (M/EEG). Patients will be studied over one year, before and after receiving either one of two standard-of-care treatments: cognitive behavioral therapy (CBT) or fluoxetine, a serotonin reuptake inhibitor (SSRI). Healthy comparisons will be studied at comparable time points. Primary Objectives: To compare healthy youth and symptomatic, medication-free pediatric patients studied prior to receipt of treatment. The study seeks to detect relations between clinical features of anxiety disorders at baseline and a wide range of neurocognitive features associated with attention, memory, and response to motivational stimuli. Secondary Objectives: 1. To document relations between baseline neurocognitive features and response to Cognitive Behavioral Therapy (CBT) or fluoxetine, as defined by the Pediatric Anxiety Rating Scale (PARS) and Clinical Global Improvement (CGI) Scale. 2. To document relations between post-treatment changes in neurocognitive features and anxiety symptoms on the PARS following treatment with Cognitive Behavioral Therapy (CBT) or fluoxetine. 3. To document relations among broad arrays of clinical, cognitive, and neural measures Primary Endpoints: Indices of percent-signal change in hypothesized brain regions, comprising amygdala, striatum, and prefrontal cortex (PFC) for each fMRI and MEG paradigm. Secondary Endpoints: 1. Treatment-response as defined by a continuous measure, the Pediatric Anxiety Rating Scale score (PARS), and a categorial measure, the Clinical Global Improvement (CGI) score. 2. Levels of symptoms and behaviors evoked by tasks that engage attention, memory, and elicit responses to motivational stimuli.

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 2
Age:8 - 65

2530 Participants Needed

The goal of this clinical trial is to compare two rehabilitation methods to improve finger movements in people who have had a stroke. The main question it aims to answer is which of these two training methods leads to the most improvement: 1. Teaching people to reach their movement goals using any strategies they like. 2. Teaching people to improve their movement technique and avoid compensatory strategies. There is no one-size-fits-all approach. The second goal is to find out who might benefit more from each method. Some people with stroke may rely on compensatory strategies due to severe impairment, while others with milder strokes might benefit more from techniques that enhance movement quality. The third goal is to take pictures of the brain to see how it changes with each method. This will help researchers understand how the brain adapts after a stroke and could lead to treatments that target the brain directly. Participants will: 1. Visit the lab for clinical and research assessments on weeks 1, 4, 5, and 15. 2. Complete 10 days of piano training. 3. Undergo magnetic resonance imaging (MRI) scans twice, once in week 1 and once in week 4.
No Placebo Group

Trial Details

Trial Status:Not Yet Recruiting
Trial Phase:Unphased
Age:19 - 80

40 Participants Needed

Background: Problem drinking affects nearly half the people who drink alcohol. Drinking alcohol affects a person s social behavior and brain structure, but researchers don t have a good understanding of how. They want to test a technique called neurofeedback to learn more about how to treat problem drinking. Objectives: To study what happens in the brains of people who drink alcohol when they look at pictures of social things and of alcohol. To learn if people can control brain activity in a magnetic resonance imaging (MRI) scanner and if this helps people with drinking. Eligibility: Adults ages 21 65 who have an alcohol use disorder. Healthy volunteers ages 21 65 Design: Participants will be screened with Physical exam Medical history Blood, urine, and heart tests Mental health interview Questions about their alcohol drinking. At each session, participants will have: A urine test for drugs and pregnancy. If they test positive, they cannot participate. A breath alcohol test and assessment for alcohol withdrawal. Participants will complete surveys, talk to researchers about behaviors, and play games. Participants will have MRI brain scans. The scanner is a metal cylinder in a strong magnetic field. They will lie on a table that slides in and out of the scanner for 1 2 hours. Participants will do tasks in the scanner: They will look at pictures, sometimes of alcohol. They will try to hit a goal. Some participants will get feedback during this task. They will see how their brain activity changes or how someone else s changes. Participants may have follow-up phone questions at least 3 times over about 6 months.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased
Age:21 - 65

116 Participants Needed

Background: - Painful stimuli cause changes in a network of brain regions called the "Pain Matrix." But most of these regions respond to many other stimuli, not just pain. Researchers want to understand how different factors influence pain. They want to test what happens when people expect different levels of pain and receive treatments that can modify pain. They want to see if these factors influence decisions about pain and how the body responds to it. They also want to compare pain with responses like taste and vision. Objectives: - To better understand how pain and emotions are processed and influenced by psychological factors. Eligibility: - Healthy volunteers ages 18-50. Design: * This study requires 1 to 2 clinic visits that last 1 to 3 hours. * Participants will be screened with medical history and physical exam. * Some participants will have one or more magnetic resonance imaging (MRI) scans of their brain. For MRI, participants will lie on a table that slides in and out of a cylinder. The scanner makes loud knocking noises. They will get earplugs. * Participants heart activity will be recorded with electrocardiogram. Their pulse, sweating, and breathing will be monitored. * Some participants will take a taste test. Others may perform simple tasks. Others may receive pain in their arm, leg, or hand. The pain will come from heat or electric shocks. Others may judge pain using a topical pain-relieving cream. Some of these tests may be given during MRI. * Participants will fill out questionnaires. * The study will last 3 years.

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased
Age:18 - 50

500 Participants Needed

Background: Major depressive disorder (MDD) is a serious mental illness that can put people at risk of self-harm and death. Many drugs are used to treat MDD, but it can take a long time for them to be effective. Researchers want to know if a faster-acting drug, (2R,6R)-hydroxynorketamine (HNK), can better treat the symptoms of MDD. Objective: To test a study drug (HNK) in people with MDD. Eligibility: People aged 18 to 70 years with MDD. They must have had a screening assessment under protocol 01-M-0254. Design: Participants will be tapered off their current MDD drugs over 2 to 5 weeks. They will stay off of the drugs for up to 2 weeks prior to starting the study medication and procedures. They will have a physical exam with blood tests. They will have tests of their heart function, mood, and thinking. They will answer questions about their symptoms. They may choose to have imaging scans and scans of their brain activity. HNK is given through a tube attached to a needle inserted into a vein. Participants will receive infusions on this schedule: They will receive 4 infusions over 2 weeks. They will stay in the clinical center overnight after each infusion or for the duration of the study. They will receive no drugs for 2 to 3 weeks. They will have 4 more infusions over 2 weeks, with overnight stays after each or for the duration of the study. One set of 4 infusions will be the HNK. The other set of 4 infusions will be a placebo. A placebo looks just like the real drug but contains no medicine. Participants will not know when they are getting the HNK or placebo. ...

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 2

50 Participants Needed

Background: The way the brain processes rewards and punishments may play a role in some disorders of the nervous system. People with chronic overlapping pain conditions (such as myalgic encephalomyelitis/chronic fatigue syndrome \[ME/CFS\]) may have heightened responses to unpleasant, punishing sensations. Some of these conditions may also cause heightened responses to effort; this is an unpleasant sensation felt during physical and mental exertion. Objective: To learn more about how the brain processes different unpleasant sensations. Eligibility: People aged 18 to 50 years with ME/CFS. Healthy volunteers are also needed. Design: Participants will have 3 visits in 1 to 5 weeks. Visit 1: Participants may have a neurologic exam. They will have a mock magnetic resonance imaging (MRI) scan. They will lie on a bed in a wooden tube while they practice 2 tasks: Thermal pain rating: A device that creates mild to moderate heat will be placed on one leg. Physical effort rating: Participants will squeeze a plastic bar with different levels of force. Visit 2: Participants will have a real MRI scan. They will lie on a table that slides into a large tube. Visit 3: Participants will have another MRI scan. They will repeat the thermal pain and physical effort tasks while in the scanner. Sensors will be placed on 1 arm to measure how the muscles function as they squeeze the bar. Their heart rate will be tested: They will hold their finger against a camera lens for 1 minute. They will do 2 other tasks: 1 requires repeatedly pressing a key on a keyboard, and the other requires squeezing a bar.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Early Phase 1
Age:18 - 50

47 Participants Needed

Nutrition Fortification for Preterm Infants

Washington, District of Columbia
Human milk has several well-established benefits but does not adequately meet the increased nutritional demands of the growing preterm infant, necessitating additional nutrient supplementation in a process known as fortification. In U.S. neonatal intensive care units (NICUs), human milk is primarily supplemented using standardized fortification, in which a multicomponent fortifier is added to human milk to achieve assumed nutrient content based on standard milk reference values. However, this method does not account for the significant variability in human milk composition or in preterm infant metabolism, and up to half of all very premature infants experience poor growth and malnutrition using current nutritional practices. Poor postnatal growth has adverse implications for the developing preterm brain and long-term neurodevelopment. Recent advances allow for individualized methods of human milk fortification, including adjustable and targeted fortification. Adjustable fortification uses laboratory markers of protein metabolism (BUN level) to estimate an infant's protein requirements. In targeted fortification, a milk sample is analyzed to determine its specific macronutrient and energy content, with additional macronutrient supplementation provided as needed to achieve goal values. Emerging data suggest that both methods are safe and effective for improving growth, however information on their comparable efficacy and neurodevelopmental implications are lacking, particularly using advanced quantitative brain MRI (qMRI) techniques. Through this prospective, randomized-controlled trial, the investigators will compare the impact of individualized human milk fortification on somatic growth and neurodevelopment in preterm infants. Infants will be randomized to receive one of three nutritional interventions: standardized (control group), adjustable, or targeted human milk fortification. Infants will undergo their assigned nutritional intervention until term-equivalent age or discharge home, whichever is achieved first. Brain qMRI will be performed at term-corrected age, and neurodevelopmental follow-up will be performed through 5 years of age.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased
Age:< 4

150 Participants Needed

Focused Ultrasound for Tobacco Use Disorder

Washington, District of Columbia
The goal of this clinical trial is to to inhibit the dorsal anterior insula (dAI) with low intensity focused ultrasound (LIFU) to determine the causal role for the dAI in smoking cue induced craving in individuals with tobacco use disorder (TUD); smoking cue induced craving is a clinically important behavior which has been associated with the severity of nicotine addiction. The main question\[s\] it aims to answer are: * the safety and tolerability of dAI LIFU compared to sham stimulation in individuals with TUD * the effects of LIFU vs sham to left dAI functional magnetic resonance imaging (fMRI) BOLD activity and craving in response to smoking cue exposure. Participants will undergo anatomical MRI, neurological assessment, clinical assessment and patient query to assess the safety and tolerability of LIFU vs sham. Participants will undergo functional magnetic resonance imaging where we will measure the effect of LIFU vs sham on 1) dAI blood-oxygen-level-dependent (BOLD) activation in response to smoking (compared to neutral) cue exposure and 2) cue-induced craving in individuals with TUD. Each participant will receive LIFU and sham stimulation.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased

44 Participants Needed

In this study, the research team will use low-intensity focused ultrasound (LIFU) to temporarily change brain activity in a brain region that is known to be involved in chronic pain. Through this, the research team hopes to learn about how the brain area works in response to pain. There are main questions this study aims to answer: * The effect of LIFU to inhibit the posterior region of the insula (PI) compared to sham stimulation in individuals with chronic back pain (CBP) and widespread pain symptoms. * The effect of LIFU to PI compared to sham stimulation to reduce pain intensity and magnitude of the Neurologic Pain Signature (NPS) in response to evoked thermal pain. * The effect of LIFU to PI compared to sham stimulation to reduce pain intensity and magnitude of Tonic Pain Signature in response to tonic pain.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased
Age:21 - 75

66 Participants Needed

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We started Power when my dad was diagnosed with multiple myeloma, and I struggled to help him access the latest immunotherapy. Hopefully Power makes it simpler for you to explore promising new treatments, during what is probably a difficult time.

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Frequently Asked Questions

How much do Magnetic Resonance Imaging clinical trials pay?

Each trial will compensate patients a different amount, but $50-100 for each visit is a fairly common range for Phase 2–4 trials (Phase 1 trials often pay substantially more). Further, most trials will cover the costs of a travel to-and-from the clinic.

How do Magnetic Resonance Imaging clinical trials work?

After a researcher reviews your profile, they may choose to invite you in to a screening appointment, where they'll determine if you meet 100% of the eligibility requirements. If you do, you'll be sorted into one of the treatment groups, and receive your study drug. For some trials, there is a chance you'll receive a placebo. Across Magnetic Resonance Imaging trials 30% of clinical trials have a placebo. Typically, you'll be required to check-in with the clinic every month or so. The average trial length for Magnetic Resonance Imaging is 12 months.

How do I participate in a study as a "healthy volunteer"?

Not all studies recruit healthy volunteers: usually, Phase 1 studies do. Participating as a healthy volunteer means you will go to a research facility several times over a few days or weeks to receive a dose of either the test treatment or a "placebo," which is a harmless substance that helps researchers compare results. You will have routine tests during these visits, and you'll be compensated for your time and travel, with the number of appointments and details varying by study.

What does the "phase" of a clinical trial mean?

The phase of a trial reveals what stage the drug is in to get approval for a specific condition. Phase 1 trials are the trials to collect safety data in humans. Phase 2 trials are those where the drug has some data showing safety in humans, but where further human data is needed on drug effectiveness. Phase 3 trials are in the final step before approval. The drug already has data showing both safety and effectiveness. As a general rule, Phase 3 trials are more promising than Phase 2, and Phase 2 trials are more promising than phase 1.

Do I need to be insured to participate in a Magnetic Resonance Imaging medical study?

Clinical trials are almost always free to participants, and so do not require insurance. The only exception here are trials focused on cancer, because only a small part of the typical treatment plan is actually experimental. For these cancer trials, participants typically need insurance to cover all the non-experimental components.

What are the newest Magnetic Resonance Imaging clinical trials?

Most recently, we added Radiotherapy Techniques for Oropharyngeal Cancer, Light Therapy for Opioid Use Disorder and rTMS and Cognitive-Behavioral Therapy for Cocaine Use Disorder to the Power online platform.

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