122 matching studies

Sponsor Condition of Interest
Retinal Blood Flow and Autoregulation
University of Maryland, Baltimore Glaucoma
The purpose of this study is to establish autoregulation of retinal blood flow in arterioles and capillaries as a biomarker for early primary open angle glaucoma. expand

The purpose of this study is to establish autoregulation of retinal blood flow in arterioles and capillaries as a biomarker for early primary open angle glaucoma.

Type: Interventional

Start Date: May 2022

open study

Recovery After Cerebral Hemorrhage
University of Maryland, Baltimore Intra Cerebral Hemorrhage Subarachnoid Hemorrhage Intraventricular Hemorrhage Nontraumatic Haemorrhage
Background: While the intensive care of patients with life-threatening brain illnesses has advanced tremendously, a large number of therapies are still without proper scientific support. This can be partly explained by the fact that mechanisms of initial brain injury are still not well understood.... expand

Background: While the intensive care of patients with life-threatening brain illnesses has advanced tremendously, a large number of therapies are still without proper scientific support. This can be partly explained by the fact that mechanisms of initial brain injury are still not well understood. Why additional neurological injury occurs during a patient's stay in the NeuroCritical Care Unit (NCCU) despite current best, evidence-based clinical practices, is also not well understood. However, over the past decade, better tools have become available to measure and monitor the impact of our clinical care on the rapidly changing physiology and chemistry of the injured brain. Some of these tools are CT, MRI, ultrasound, and catheter-based technology measuring blood flow and metabolism. These tools have enabled earlier detection of injury and complications and newer therapeutic strategies. Purpose: Examine disease pathways common to all brain injuries seen in the University of Maryland's 22-bed NCCU. Life-threatening neurological illnesses cared for in the NCCU include massive stroke, bleeding in and around the brain (subarachnoid hemorrhage, intracerebral hemorrhage, subdural hemorrhage, intraventricular hemorrhage), brain tumors, difficult to control seizures, neurologic infections, nerve and muscle diseases (such as myasthenia gravis or Guillain-Barre Syndrome), and spinal cord disorders among others. Many NCCU patients are comatose or paralyzed and may suffer injuries in other parts of the body as well. This effort will require the creation of a robust clinical database for the capture of data including patient characteristics (age, sex), clinical characteristics, medical treatments, surgical interventions, physiological data (such as vital signs, cerebral blood flow, intracranial pressure, cerebral oximetry, etc), laboratory data, and standard-of-care diagnostic studies such as electroencephalography (EEG), ultrasound, CT, MRI, and angiograms. Similar databases exist at other major centers for neurocritical care and have been instrumental to the identification of characteristics both predictive of and associated with outcomes of patients long after their stay in the NCCU. In addition, the samples collected will be included in the University of Maryland Medicine (UMM) Biorepository which is a shared resource to enable biomedical research by University of Maryland faculty.

Type: Observational [Patient Registry]

Start Date: Sep 2014

open study

Pulmonary Hypertension Association Registry
Pulmonary Hypertension Association, Inc. Pulmonary Arterial Hypertension Chronic Thromboembolic Pulmonary Hypertension Pulmonary Hypertension
The PHA Registry (PHAR) is a national study about people who have pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH). PHAR collects information from people with PAH and CTEPH who are cared for in participating PHA-accredited Pulmonary Hypertension Care... expand

The PHA Registry (PHAR) is a national study about people who have pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH). PHAR collects information from people with PAH and CTEPH who are cared for in participating PHA-accredited Pulmonary Hypertension Care Centers throughout the U.S. PHAR will determine how people with PAH and CTEPH are evaluated, tested, and treated, and will observe how well these participants do. The goal is to see if people with PH are treated according to recommended guidelines, and to see if there are certain factors that can lead to better or worse outcomes. PHAR will include information about people with PAH and CTEPH in the U.S. who are seen at participating PHA-accredited PH Care Centers. PHAR contains data about patient care and outcomes. Specifically, data in the PHAR includes information on diagnosis; clinical status; socioeconomic status; diagnosis test results; body size; treatment information; interest in participating in clinical trials; family health and social history; and information about smoking, alcohol, or drug use. Participants are followed over time, and provide updates such as changes in therapy, how often participants need to go to the hospital, and survival. Such information may help healthcare providers provide better care.

Type: Observational [Patient Registry]

Start Date: Oct 2015

open study

Diaphragm Structure and Function in Childhood Cancer Survivors
University of Maryland, Baltimore Childhood Cancer Cancer Survivors
The purpose of this research is to study the feasibility of a specific training program for the breathing muscles (inspiratory muscle training) and the effects on how breathing is regulated during exercise in childhood cancer survivors. expand

The purpose of this research is to study the feasibility of a specific training program for the breathing muscles (inspiratory muscle training) and the effects on how breathing is regulated during exercise in childhood cancer survivors.

Type: Interventional

Start Date: Mar 2024

open study

Efficacy of Locally Delivered Allogeneic Mesenchymal Stromal Cells
University of Illinois at Chicago Corneal Ulcer
The proposed Conventional Cohort Expansion Study involves the use of Mesenchymal Stromal Cells (MSCs) are derived from the bone marrow. We previously studied the safety of subconjunctival injection of allogeneic bone marrow-derived MSCs in patients with nonhealing epitheliopathy (IRB Protocol 2020-0334).... expand

The proposed Conventional Cohort Expansion Study involves the use of Mesenchymal Stromal Cells (MSCs) are derived from the bone marrow. We previously studied the safety of subconjunctival injection of allogeneic bone marrow-derived MSCs in patients with nonhealing epitheliopathy (IRB Protocol 2020-0334). In the present study, we want to study the efficacy of this treatment on chronic epitheliopathies.

Type: Interventional

Start Date: Sep 2023

open study

The Effects of Fluoxetine and/or DHEA
University of Maryland, Baltimore Type 1 Diabetes Mellitus
(1) To determine how the Selective Serotonin Reuptake Inhibitor (SSRI), fluoxetine (Prozac), an antidepressant often used to treat depression, stimulates the participant's body's ability to defend against low blood sugar (hypoglycemia). (2) To learn how a hormone, dehydroepiandrosterone (DHEA), stimulates... expand

(1) To determine how the Selective Serotonin Reuptake Inhibitor (SSRI), fluoxetine (Prozac), an antidepressant often used to treat depression, stimulates the participant's body's ability to defend against low blood sugar (hypoglycemia). (2) To learn how a hormone, dehydroepiandrosterone (DHEA), stimulates the participant's body's ability to defend itself from low blood sugar (hypoglycemia). DHEA is a hormone produced naturally in the human body. However, it can be manufactured and is sold as an over-the-counter dietary supplement. The dose the investigators are giving in this study is higher than the usual recommended dosage taken as a supplement for certain medical conditions. (3) To study combined effects of fluoxetine and DHEA during low blood glucose. In the present study, the investigators will measure the participant's body's responses to hypoglycemia when given fluoxetine or DHEA or fluoxetine and DHEA or a placebo (a pill with no fluoxetine or DHEA). Approximately 64 individuals with type 1 diabetes will take part in this study.

Type: Interventional

Start Date: Dec 2017

open study

Working Memory and Physical Exercise Training in Patients With Mild Cognitive Impairment
University of Maryland, Baltimore Mild Cognitive Impairment
The prevalence of dementia will double in the next three decades in the U.S.; effective treatment or prevention for dementia is urgently needed. The current exploratory project aims to evaluate and understand how the brain and cognition may improve after a 12-week intervention that combines brain... expand

The prevalence of dementia will double in the next three decades in the U.S.; effective treatment or prevention for dementia is urgently needed. The current exploratory project aims to evaluate and understand how the brain and cognition may improve after a 12-week intervention that combines brain training and aerobic exercise training to improve brain function, both in those with mild cognitive impairment (some with possible prodromal Alzheimer's disease) and with healthy aging. Findings from this pilot project will guide and refine the development of a future larger clinical trial that aligns with the goals of the National Alzheimer's Plan of Action (NAPA), especially regarding "Prevent and Effectively Treat Alzheimer's Disease (AD) by 2025.

Type: Interventional

Start Date: Jan 2024

open study

Bringing Health Home
University of Maryland, Baltimore Mental Disorders, Severe
Individuals suffering from Serious Mental Illnesses (SMI) are at risk for serious adverse health and social outcomes compared to the general population due to a high prevalence of chronic physical health disorders such as cardiovascular disease, hypertension, and Type II Diabetes, along with consequences... expand

Individuals suffering from Serious Mental Illnesses (SMI) are at risk for serious adverse health and social outcomes compared to the general population due to a high prevalence of chronic physical health disorders such as cardiovascular disease, hypertension, and Type II Diabetes, along with consequences of mental distress such as suicide, substance abuse, and acute stress.While pharmacological treatments exist for these conditions, they have limited effectiveness in SMI populations because: (1) up to 60% of individuals with SMI do not take their psychiatric or somatic medications as prescribed, (2) individuals with SMI have poorer clinical outcomes and experience high rates of hospitalizations, and (3) individuals with SMI experience worse care. Challenges in the management of these complex chronic health and mental health conditions have led to the development of intensive community-based service delivery programs. However, as currently structured these intensive in-person interventions have only had limited impact optimizing service delivery, and consequently on adherence to treatment and health outcomes. While in-person clinical contact in select situations is important, telehealth may serve as an effective and nimble intervention to help meet the high need for clinical intervention for SMI populations and particularly those with geographically limited-service access. Although research exists regarding the efficacy of telehealth with SMI populations, most of the existing interventions with this population have been designed for institutional settings, not community settings, because of barriers to adoption of telehealth such as limited access to digital technology, technical support difficulties and cost of necessary technology. The COVID-19 pandemic has underscored the need for developing effective telemedicine and telemonitoring technologies to serve the unique needs of this vulnerable population in community settings. This project builds on a successful Phase I SBIR project and ongoing Phase II clinical trial of the Medherent medication management platform. This study will test an expanded set of telehealth care-coordination services that can be used to address the broad health needs of individuals diagnosed with SMI living in community settings and supported by community mental health agencies. The study team will recruit 300 individuals, including 200 individuals currently using the device and 100 new users of the device. The study will test the existing Medherent platform and a set of extended services. Our key outcomes include acute service use, receipt of preventive and other health screenings, health outcomes and costs of services. The study will use a Stepped Wedge Design approach with a matched comparison group to identify potential benefits of the intervention.

Type: Interventional

Start Date: May 2022

open study

The CREST-2 Registry
University of Maryland, Baltimore Carotid Artery Diseases
The objective of C2R is to promote the rapid initiation and completion of enrollment in the CREST-2 randomized clinical trial (clinicaltrials.gov ID NCT02089217). Patients with severe symptomatic and asymptomatic carotid artery occlusive disease will be treated with carotid artery stenting (CAS) performed... expand

The objective of C2R is to promote the rapid initiation and completion of enrollment in the CREST-2 randomized clinical trial (clinicaltrials.gov ID NCT02089217). Patients with severe symptomatic and asymptomatic carotid artery occlusive disease will be treated with carotid artery stenting (CAS) performed by experienced and skilled interventionists. Interventionists' eligibility will be determined by a multi-specialty Interventional Management Committee (IMC). Patient eligibility will include patients with standard or high-risk, symptomatic or asymptomatic carotid artery disease. Patients will be followed for the occurrence of post-procedural complications. The primary safety and quality endpoint will be the occurrence of any stroke or death within the 30-day period following the stenting procedure. The safety and quality results from C2R will guide selection of interventionists for participation in the CREST-2 randomized clinical trial. Enrollment into C2R will begin in 2015 and continue until publication of the primary results of the randomized trial.

Type: Observational [Patient Registry]

Start Date: Feb 2015

open study

Risk Indicators of Sarcoidosis Evolution-Unified Protocol
University of California, San Francisco Sarcoidosis, Pulmonary
The purpose of this study is to develop prediction models that can prognosticate patients with sarcoidosis using clinical data and blood markers that can be obtained during a clinic visit. expand

The purpose of this study is to develop prediction models that can prognosticate patients with sarcoidosis using clinical data and blood markers that can be obtained during a clinic visit.

Type: Observational

Start Date: Jan 2023

open study

7-Day Trial of Sucraid for Alleviating CSID Symptoms in Subjects With Low, Moderate, and Normal Sucrase...
QOL Medical, LLC Congenital Sucrase-Isomaltase Deficiency CSID Sucrase Isomaltase Deficiency
This is a Phase 4, U.S. only, multi-center study using a 7-day therapeutic response dose (TRD) of commercial Sucraid® to assess the response of treatment in 1100 symptomatic pediatric (6 months to 17 years old) subjects with low, moderate, and normal sucrase activity determined by a disaccharidase... expand

This is a Phase 4, U.S. only, multi-center study using a 7-day therapeutic response dose (TRD) of commercial Sucraid® to assess the response of treatment in 1100 symptomatic pediatric (6 months to 17 years old) subjects with low, moderate, and normal sucrase activity determined by a disaccharidase assay via EGD within 1 year of the Screening Visit. This study will also explore the relationship between known genetic CSID mutations and sucrase activities via (EGD) disaccharidase assay (low, moderate, and normal).

Type: Interventional

Start Date: Aug 2022

open study

TruGraf® Long-term Clinical Outcomes Study
Transplant Genomics, Inc. Kidney Transplant Rejection
This is a prospective, multi-center, observational study. Subjects will have OmniGraf™ (TruGraf® and TRAC™) testing at study enrollment and thereafter every 3 months. In addition subjects will have OmniGraf™ (TruGraf® and TRAC™) testing at any time there is a clinical suspicion of acute rejection.... expand

This is a prospective, multi-center, observational study. Subjects will have OmniGraf™ (TruGraf® and TRAC™) testing at study enrollment and thereafter every 3 months. In addition subjects will have OmniGraf™ (TruGraf® and TRAC™) testing at any time there is a clinical suspicion of acute rejection. Data collection for the primary objective extends over a 2-year period.

Type: Observational

Start Date: Sep 2020

open study

Infant Massage in the NICU
University of Maryland, Baltimore Neonatal Prematurity Massage Therapy
The goal of this clinical trial is to learn about the effects of Neonatal Touch and Massage Therapy on premature babies. The main questions it aims to answer are: - Do babies who receive Neonatal Touch and Massage Therapy get discharged sooner from the NICU - Does Neonatal Touch... expand

The goal of this clinical trial is to learn about the effects of Neonatal Touch and Massage Therapy on premature babies. The main questions it aims to answer are: - Do babies who receive Neonatal Touch and Massage Therapy get discharged sooner from the NICU - Does Neonatal Touch and Massage Therapy have a beneficial effect on weight gain, pain and stress responses, and neurodevelopmental outcomes. Participants assigned to the treatment group will receive Neonatal Touch and Massage Therapy while admitted to the NICU. Researchers will compare their outcomes to a control group, receiving standard NICU care, to see if there are any differences in the length of hospital stay, weight gain, pain scores, neurodevelopmental outcomes, and incidence of other common conditions associated with prematurity.

Type: Interventional

Start Date: Nov 2023

open study

Tocilizumab in Lung Transplantation
National Institute of Allergy and Infectious Diseases (NIAID) Lung Transplant
This is a trial in which 350 primary lung transplant recipients will be randomized (1:1) to receive either Tocilizumab (six doses over 20 weeks) plus standard triple maintenance immunosuppression or placebo (sterile normal saline) plus standard triple maintenance immunosuppression (Tacrolimus, Mycophenolate... expand

This is a trial in which 350 primary lung transplant recipients will be randomized (1:1) to receive either Tocilizumab (six doses over 20 weeks) plus standard triple maintenance immunosuppression or placebo (sterile normal saline) plus standard triple maintenance immunosuppression (Tacrolimus, Mycophenolate Mofetil, corticosteroids). The primary objective is to test the hypothesis that treatment with triple maintenance immunosuppression plus Tocilizumab (TCZ) is superior to triple maintenance immunosuppression plus placebo (saline) as defined by a composite endpoint of a) CLAD, b) listed for re-transplantation, and c) death

Type: Interventional

Start Date: Feb 2024

open study

PO vs IV Antibiotics for the Treatment of Infected Nonunion of Fractures After Fixation
Major Extremity Trauma Research Consortium Infections Infected Wound Nonunion of Fracture Injury Leg Amputation
This is a Phase III clinical randomized control trial to investigate differences between patient with an infected nonunion treated by PO vs. IV antibiotics. The study population will be 250 patients, 18 years or older, being treated for infected nonunion after internal fixation of a fracture with... expand

This is a Phase III clinical randomized control trial to investigate differences between patient with an infected nonunion treated by PO vs. IV antibiotics. The study population will be 250 patients, 18 years or older, being treated for infected nonunion after internal fixation of a fracture with a segmental defect less than one centimeter. Patients will be randomly assigned to either the treatment (group 1) PO antibiotics for 6 weeks or the control group (group 2) IV antibiotics for 6 weeks. The primary hypothesis is that the effectiveness of oral antibiotic therapy is equivalent to traditional intravenous antibiotic therapy for the treatment of infected nonunion after fracture internal fixation, when such therapy is combined with appropriate surgical management. Clinical effectiveness will be measured as the primary outcome as the number of secondary re-admissions related to injury and secondary outcomes of treatment failure (re-infection, nonunion, antibiotic complications) within the first one year of follow-up, as defined by specified criteria and determined by a blinded data assessment panel. In addition, treatment compliance, the cost of treatment, the number of surgeries required, the type and incidence of complications, and the duration of hospitalization will be measured.

Type: Interventional

Start Date: May 2023

open study

Pediatric Influence of Cooling Duration on Efficacy in Cardiac Arrest Patients (P-ICECAP)
University of Michigan Cardiac Arrest, Out-Of-Hospital Hypothermia, Induced Hypoxia-Ischemia, Brain
This is a multicenter trial to establish the efficacy of cooling and the optimal duration of induced hypothermia for neuroprotection in pediatric comatose survivors of cardiac arrest. The study team hypothesizes that longer durations of cooling may improve either the proportion of children that... expand

This is a multicenter trial to establish the efficacy of cooling and the optimal duration of induced hypothermia for neuroprotection in pediatric comatose survivors of cardiac arrest. The study team hypothesizes that longer durations of cooling may improve either the proportion of children that attain a good neurobehavioral recovery or may result in better recovery among the proportion already categorized as having a good outcome.

Type: Interventional

Start Date: Aug 2022

open study

IKS03 in Patients With Advanced B Cell Non-Hodgkin Lymphomas
Iksuda Therapeutics Ltd. B-cell Non-Hodgkin Lymphoma Diffuse Large B Cell Lymphoma Follicular Lymphoma Mantle Cell Lymphoma B-cell Lymphoma
This first-in-human study will evaluate the recommended dose for further clinical development, safety, tolerability, antineoplastic activity, immunogenicity, pharmacokinetics and pharmacodynamics of IKS03, a CD19 targeting antibody-drug conjugate, in patients with advanced B cell non-Hodgkin lymphoma... expand

This first-in-human study will evaluate the recommended dose for further clinical development, safety, tolerability, antineoplastic activity, immunogenicity, pharmacokinetics and pharmacodynamics of IKS03, a CD19 targeting antibody-drug conjugate, in patients with advanced B cell non-Hodgkin lymphoma (NHL).

Type: Interventional

Start Date: Sep 2023

open study

A Study Evaluating the Efficacy and Safety of Giredestrant Plus Everolimus Compared With the Physician's...
Genentech, Inc. Estrogen Receptor (ER)-Positive, HER2-negative, Locally Advanced or Metastatic Breast Cancer
This Phase III, randomized, open-label, multicenter study will evaluate the efficacy and safety of giredestrant plus everolimus compared with the physician's choice of endocrine therapy plus everolimus in participants with estrogen receptor (ER)-positive, human epidermal growth factor receptor 2 (HER2)-negative... expand

This Phase III, randomized, open-label, multicenter study will evaluate the efficacy and safety of giredestrant plus everolimus compared with the physician's choice of endocrine therapy plus everolimus in participants with estrogen receptor (ER)-positive, human epidermal growth factor receptor 2 (HER2)-negative locally advanced or metastatic breast cancer who have had previous treatment with cyclin-dependent kinase 4/6 inhibitors (CDK4/6is) and endocrine therapy, either in the locally advanced/metastatic or the adjuvant setting.

Type: Interventional

Start Date: Aug 2022

open study

iKinnect2.0 for Juvenile Justice Involved Youth at Risk for Suicide
Evidence-Based Practice Institute, Seattle, WA Child Behavior Disorders Suicide and Self-harm
This study is a 16-week intent-to-treat randomized controlled trial (RCT) with 120 suicidal juvenile justice (JJ)-involved transition-age (TA) youth (age 15-21 years) and a primary caregiver (dyads). Dyads will be randomly assigned to iKinnect2.0 (n=60 dyads) or Life360 (control app) plus an electronic... expand

This study is a 16-week intent-to-treat randomized controlled trial (RCT) with 120 suicidal juvenile justice (JJ)-involved transition-age (TA) youth (age 15-21 years) and a primary caregiver (dyads). Dyads will be randomly assigned to iKinnect2.0 (n=60 dyads) or Life360 (control app) plus an electronic suicide resources brochure (n=60 dyads). This design will test iKinnect2.0's new features for suicide prevention against TA youth awareness of and access to high-quality suicide prevention resources, while simultaneously testing features relating to conduct problems and parent management against parents knowing the TA youth's whereabouts in real-time and controlling for dyad member engagement in technology (Life360). Participants will be assessed at baseline, 4, 8 and 16 weeks. Primary youth-reported outcomes relating to suicide risk include: Suicidal behaviors (ideation, planning, attempts), non-suicidal self-injurious behaviors, self-efficacy in coping with distress, and use of imminent distress coping strategies (behavioral skills, use of crisis stabilization plan). Youth will also report on their criminal behavior. Primary caregiver-reported outcome variables relating to youth suicide include: Self-efficacy in applying family-based suicide-prevention strategies and reported use of those strategies; caregivers will also report on their own functioning (efficacy/confidence in parenting skills, life stress), TA youth functioning (internalizing and externalizing symptoms), parental management behaviors (expectation clarity, parental monitoring, discipline effectiveness/consistency, use of rewards), and parent-youth relationship quality (communication, conflict, support). App satisfaction and use of technology outcomes (i.e., degree of app usage, features used) will be examined and reported descriptively.

Type: Interventional

Start Date: Jun 2023

open study

A Study Comparing Imetelstat Versus Best Available Therapy for the Treatment of Intermediate-2 or High-risk...
Geron Corporation Myelofibrosis
The purpose of the study is to evaluate the overall survival of participants treated with imetelstat compared to best available therapy with intermediate-2 or high-risk Myelofibrosis (MF) who are relapsed/refractory to Janus Kinase (JAK)-Inhibitor treatment. expand

The purpose of the study is to evaluate the overall survival of participants treated with imetelstat compared to best available therapy with intermediate-2 or high-risk Myelofibrosis (MF) who are relapsed/refractory to Janus Kinase (JAK)-Inhibitor treatment.

Type: Interventional

Start Date: Apr 2021

open study

Trifecta-Kidney cfDNA-MMDx Study
University of Alberta Kidney Transplant Rejection
Demonstrate the relationship between DD-cfDNA levels and HLA antibodies in blood, and the Molecular Microscope® (MMDx) Diagnostic System results in indication biopsies. expand

Demonstrate the relationship between DD-cfDNA levels and HLA antibodies in blood, and the Molecular Microscope® (MMDx) Diagnostic System results in indication biopsies.

Type: Observational

Start Date: Dec 2019

open study

Diagnostic and Therapeutic Applications of Microarrays in Liver Transplantation
University of Alberta Liver Dysfunction
INTERLIVER is a prospective observational study of the relationship of the molecular phenotype of 300 liver transplant biopsies to the histologic phenotype and the clinical features and outcomes. A segment of a biopsy performed as standard-of-care for indications, or by center protocol, will be used... expand

INTERLIVER is a prospective observational study of the relationship of the molecular phenotype of 300 liver transplant biopsies to the histologic phenotype and the clinical features and outcomes. A segment of a biopsy performed as standard-of-care for indications, or by center protocol, will be used for gene expression study.

Type: Observational

Start Date: Dec 2017

open study

Allogeneic Hematopoietic Stem Cell Transplantation for Severe Aplastic Anemia and Other Bone Marrow Failure...
National Heart, Lung, and Blood Institute (NHLBI) Severe Aplastic Anemia MDS (Myelodysplastic Syndrome)
Background: - Stem cell transplants from related donors (allogenic stem cell transplants) can be used to treat individuals with certain kinds of severe blood diseases or cancers, such as severe anemia. Allogenic stem cell transplants encourage the growth of new bone marrow to... expand

Background: - Stem cell transplants from related donors (allogenic stem cell transplants) can be used to treat individuals with certain kinds of severe blood diseases or cancers, such as severe anemia. Allogenic stem cell transplants encourage the growth of new bone marrow to replace that of the recipient. Because stem cell transplants can have serious complications, researchers are interested in developing new approaches to stem cell transplants that will reduce the likelihood of these complications. - By reducing the number of white blood cells included in the blood taken during the stem cell collection process, and replacing them with a smaller amount of white blood cells collected prior to stem cell donation, the stem cell transplant may be less likely to cause severe complications for the recipient. Researchers are investigating whether altering the stem cell transplant donation procedure in this manner will improve the likelihood of a successful stem cell transplant with fewer complications. Objectives: - To evaluate a new method of stem cell transplantation that may reduce the possibly of severe side effects or transplant rejection in the recipient. Eligibility: - Recipient: Individuals between 4 and 80 years of age who have been diagnosed with a blood disease that can be treated with allogenic stem cell transplants. - Donor: Individuals between 4 and 80 years of age who are related to the recipient and are eligible to donate blood. OR unrelated donors found through the National Marrow Donor Program. Design: - All participants will be screened with a physical examination and medical history. - DONORS: - Donors will undergo an initial apheresis procedure to donate white blood cells. - After the initial donation, donors will receive injections of filgrastim to release bone marrow cells into the blood. - After 5 days of filgrastim injections, donors will have apheresis again to donate stem cells that are present in the blood. - RECIPIENTS: - Recipients will provide an initial donation of white blood cells to be used for research purposes only. - From 7 days before the stem cell transplant, participants will be admitted to the inpatient unit of the National Institutes of Health Clinical Center and will receive regular doses of cyclophosphamide, fludarabine, and anti-thymocyte globulin to suppress their immune system and prepare for the transplant. - After the initial chemotherapy, participants will receive the donated white blood cells and stem cells as a single infusion. - After the stem cell and white blood cell transplant, participants will have regular doses of cyclosporine and methotrexate to prevent rejection of the donor cells. Participants will have three doses of methotrexate within the week after the transplant, but will continue to take cyclosporine for up to 4 months after the transplant. - Participants will remain in inpatient care for up to 1 month after the transplant, and will be followed with regular visits for up to 3 years with periodic visits thereafter to evaluate the success of the transplant and any side effects.

Type: Interventional

Start Date: Dec 2010

open study

HP Pyruvate MRI in Cancers
University of Maryland, Baltimore Image Warburg Effect Tumors
Many human diseases are characterized by their ability to alter existing metabolic pathways and interrupt cellular processes. Cancer exploits the Warburg effect and utilizes greater glucose than normal cells and within this process uses anaerobic respiration, leading to increased conversion of pyruvate... expand

Many human diseases are characterized by their ability to alter existing metabolic pathways and interrupt cellular processes. Cancer exploits the Warburg effect and utilizes greater glucose than normal cells and within this process uses anaerobic respiration, leading to increased conversion of pyruvate to lactate. This can be exploited by hyperpolarized imaging. Hyperpolarized 13C MRI imaging is an approach that utilizes a stable isotope of Carbon (13C) linked to pyruvate. MRI spectroscopy is used in conjunction with hyperpolarized 13C pyruvate in order to temporally detect pyruvate and its conversion to lactate in-vivo, in order to visualize downstream metabolic (glycolytic) activity secondary to the Warburg effect, which should be useful in detecting and characterizing tumors of various types. Hyperpolarized 13C pyruvate MR imaging has not been tested in most cancers. In this preliminary survey, we will test the hypothesis that hyperpolarized 13C pyruvate MR imaging can be used to image various cancers.

Type: Interventional

Start Date: Jun 2024

open study

ARrest RESpiraTory Failure From PNEUMONIA
Stanford University Pneumonia Hypoxemia Acute Respiratory Failure COVID-19 Pneumonia
This research study seeks to establish the effectiveness of a combination of an inhaled corticosteroid and a beta agonist compared to placebo for the prevention of acute respiratory failure (ARF) in hospitalized patients with pneumonia and hypoxemia. expand

This research study seeks to establish the effectiveness of a combination of an inhaled corticosteroid and a beta agonist compared to placebo for the prevention of acute respiratory failure (ARF) in hospitalized patients with pneumonia and hypoxemia.

Type: Interventional

Start Date: Jun 2020

open study