There are about 173942 clinical studies being (or have been) conducted in United States. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The two purposes of this study are 1. to determine what effect the chronic and moderate/heavy drinking of alcoholic beverages has 1. on the blood level of bupropion and chlorzoxazone and their major breakdown products in the blood and 2. on the stimulant effect of bupropion and 2. to determine what effect a normal and common (25% frequency) genetic variation of a specific liver enzyme (that breaks down bupropion) has 1. on the blood levels of bupropion and its major breakdown products in the blood and 2. on the stimulant effect of bupropion. Two groups of volunteers will be recruited for this study: 1. volunteers who drink moderate to heavy amounts of alcohol frequently and 2. volunteers who usually do not drink alcohol. Volunteers will NOT be asked to change their drinking (or nondrinking) habits during the study.
Xyrem (sodium oxybate) is an agent with the propensity to improve slow wave sleep and sleep efficiency. It is FDA approved to treat cataplexy (drop attacks) associated with narcolepsy (sleep attacks). It has been shown to be a safe and effective agent here where deep, restorative slow wave sleep improves and next day cataplexy attacks tend not to occur. Post Traumatic Stress Disorder (PTSD) is a psychiatric illness where a patient has witnessed or been involved in a traumatic event. After the event is over, nightmares, flashbacks, avoidance of people and places associated with trauma and hyperarousal occur which is incapacitating to the patient. One major part of PTSD hyperarousal is marked insomnia with multiple awakenings at night. This resultant poor sleep is compounded by use of SSRI serotonergic antianxiety agents (ie Zoloft(sertraline)) as first line therapy which tend to degrade slow wave, restorative sleep. Patients may respond to SSRI treatment but may fail to remit as they continue to have sleep problems. PTSD patients will often fail to respond to antihistamine (Desyrel (trazodone)) and benzodiazepine GABA hypnotic agents (Restoril(temazepam)) and continue with poor, interrupted sleep. It is possible that Xyrem's ability to remarkably improve slow wave sleep may greatly help treatment refractory insomnia due to PTSD. The author proposes an open-label study (no placebo) where 10 PTSD patients, who have failed usual PTSD treatments and have failed usual insomnia treatments in particular will be given Xyrem in addition to their current PTSD medication. The authors wish to determine if Xyrem is a safe treatment optionin this difficult-to-treat patient population.
High blood pressure (BP) before pregnancy is called chronic hypertension (CHTN), and is associated with an increased risk of development of pregnancy related high BP called preeclampsia, preterm delivery, decreased growth of the fetus, fetal death, premature separation of the placenta from the uterus resulting in damage to the fetus and cesarean delivery. Longer duration and severity of CHTN in pregnancy leads to worse outcomes for the mother and the fetus. Treatment of mild CHTN in pregnancy does not improve these outcomes, and therefore, medications to lower BP are used for moderate to severe hypertension. To date the literature on the medications used in pregnancy is extremely limited. Methyldopa is used as a first choice medicine for CHTN in pregnancy. It acts on the central nervous system (CNS) by relaxation of the blood vessels leading to a decrease in BP. It does not decrease the blood flow to the uterus, placenta, or the fetus (4). Methyldopa is a weak antihypertensive medicine given three or four times a day and frequently needs changes in the dose or may require an additional medication to control BP. This may lead to a greater chance of non compliance. Another option is Clonidine which is an effective antihypertensive treatment and is available in many forms (oral, parenteral, and transdermal.) It acts on the maternal CNS. Clonidine is not associated with teratogenic or neonatal side effects. Transdermal clonidine (catapres-TTS®) is a preparation of clonidine hydrochloride that can be released and absorbed transdermally over a 7-day period. The study will determine differences in compliance between the two antihypertensive regimens- oral methyldopa and Catapres-TTS, comparisons of patient tolerability, compliance and adequacy of BP control, as well as provide information on an alternate option for BP control.
A study to examine the potential associations between common single nucleotide polymorphisms and pre-cancerous conditions in breast tissue specimens from postmenopausal women.
This a pilot clinical study focused on enhancing the patient's anti-tumor immune response in individuals with esophageal cancer by altering the genetic repertoire of the tumors to express CD40L, an activator of dendritic cells. This will be accomplished by endoscopic administration to the tumors of AdcuCD40L, an adenovirus gene transfer vector expressing the coding sequence of the human CD40L cDNA. This study is designed to assess the hypothesis that it is safe to administer the AdcuCD40L vector to individuals with esophageal cancer.
Cardiovascular disease is the leading cause of death and disproportionately prevalent in patients with kidney disease. Spironolactone has been shown to improve survival in the general population with heart failure by up to 30%. We wish to study the safety and tolerability of aldosterone blockade with spironolactone on cardiac function in a high risk population of patients on hemodialysis. We will study and closely monitor subjects over a period of 12 months, during which they will be receiving spironolactone for a period of 6 months.
The goal is to conduct a pilot study to determine the feasibility of the clinical use of RMSSH SPECT imaging technology for breast imaging and to develop a standardized clinical protocol.
This study will examine whether mitochondrial function is impaired in patients with bipolar disorder. Mitrochondria are small organelles inside the cell that are responsible for energy production. Recent studies in animals and humans suggest that abnormalities of mitrochondria may be involved in bipolar depression. The study will also examine whether the food supplement Coenzyme Q10 (CoQ10) improves mitochondrial function and symptoms such as depressed mood, low energy, anxiety or slowness in thinking and movements in bipolar patients. CoQ10 has been used to increase cell energy production and as an antioxidant. It has had some benefit in patients with Parkinson's disease and migraine and in prolonging survival in patients with cancer and heart failure. Patients 18-65 years of age with bipolar disorder who are currently in a depressive episode of at least 4 weeks duration may be eligible for this study. The study has four phases, as follows: Phase I: Medication Withdrawal Patients taper off all psychotropic medications, usually over 1 to 2 weeks. Phase II: Baseline Evaluation After being off all medication for about 2 weeks, patients undergo the following procedures: - Magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS). The two procedures are performed in an MRI scanner. Both tests use a strong magnetic field and radio waves to obtain images that provide information on brain anatomy and chemistry. - Blood tests to assess mitochondrial function isolated from blood cells. - Skin biopsy for tests of mitochondria. A small sample of skin tissue 5 x 5 millimeters is surgically removed. Phase III: Administration of CoQ10 or Placebo Participants are randomly assigned to take either CoQ10 or placebo (an inactive look-alike substance) twice a day by mouth. While taking the study medication, patients have the following procedures periodically: - Rating scales for anxiety and depression and adverse events. - Check of vital signs. - Blood and urine sample collections. Phase IV: Study Completion At the end of the 8 weeks of treatment, patients have a physical examination and electrocardiogram, and the procedures in phase II are repeated. Participants may then receive short-term treatment (up to 12 weeks) with medications for bipolar depression, followed by referred to a community physician for long-term treatment.
The purpose of the present prospective, randomized study is to investigate the clinical effectiveness of standardized left ventricular reconstruction surgery (LVR). In order to standardize the procedure, the operation will be performed with the Blue Egg, manufactured by BioVentrix, a subsidiary of CHF Technologies, Inc.
This is a study of the drug tinidazole for women with recurrent bacterial vaginosis. Half of the participants will get the drug for 10 days, the other half will get the drug for 10 days and then twice a week for 12 weeks.