Active clinical trials for "Diabetes Mellitus, Type 2"

The purpose of this project is to determine whether glucose metabolism can be improved by administering a substance (nitric oxide donor) normally released by muscles during exercise.

This Phase 3, open-label, multicenter study is designed to compare the effects of exenatide and insulin glargine (Lantus® injection) on beta-cell function in patients with type 2 diabetes mellitus using metformin.

This is a study with two treatment sequences and two treatment periods that will assess the safety and efficacy of exenatide treatment in patients with type 2 diabetes who have inadequate glycemic control using metformin or sulfonylurea and for whom insulin is the next appropriate step in diabetes treatment.

The purpose of this study is to determine the safety and effectiveness of an investigational drug in patients with Type 2 Diabetes Mellitus (T2DM) (a specific type of diabetes).

This study will examine whether the anti-diabetes medicine rosiglitazone can safely and effectively reverse the early problems of type 2 diabetes and delay the onset of disease in people with pre-diabetes. The underlying problem in people with diabetes or pre-diabetes is insulin resistance (lowered sensitivity to insulin) resulting in poor glucose (sugar) regulation. Rosiglitazone improves the body's sensitivity to insulin. Patients 21 years of age and older who have type 2 diabetes or who are pre-diabetic (glucose intolerant/insulin resistant) may be eligible for this study. Candidates are screened with a medical history, physical examination, blood tests, echocardiography (heart ultrasound), exercise test, brachial artery reactivity test (see below), and possibly a muscle biopsy. Participants take one rosiglitazone tablet daily by mouth for 2 weeks. The dose is then increased to two tablets daily for another 2 weeks and then to 4 tablets daily for the remainder of the 12-week treatment period. In addition to treatment, patients undergo the following tests and procedures: Resting and exercise metabolic testing: The amount of oxygen taken in and carbon dioxide exhaled during breathing is measured while the patient rests in a chair and then while he or she exercises on a stationary bicycle or treadmill. Both at rest and during exercise, the patient wears a facemask that measures the amount of oxygen used. During exercise, heart rate is monitored with electrodes on the chest, arms, and thighs. The exercise test is repeated three times, once to become familiar with the test, again the next day to measure exercise capacity, and again 3 days later. The third test is less strenuous and is optional. Muscle biopsy (optional): A small area of skin over a calf muscle is numbed with a local anesthetic and a 1-inch incision is made over the muscle. A small amount of muscle tissue is taken and the incision is closed with stitches. Brachial reactivity study: This ultrasound study tests how well the patient's arteries widen. The subject rests on a bed for 30 minutes. An ultrasound measuring device is placed over the artery just above the elbow. The size of the artery and blood flow through it are measured before and after inflating a pressure cuff around the forearm. The pressure cuff stops the flow of blood to the arm for a few minutes. After a 15-minute rest, a nitroglycerin tablet (medicine that causes blood vessels to relax) is placed under the patient's tongue. Before and 3 minutes after the nitroglycerin is given, the size of the artery and blood flow through it are measured again. Blood samples: Blood samples are collected at the beginning and end of the study and at study visits in between. Study visits: Patients come to the Clinical Center biweekly or monthly for a follow-up history, physical examination, and blood tests. At the end of the3-month treatment period, they receive recommendations about possible treatment modifications to best maintain glucose tolerance. Their physicians are informed of how their blood sugar was controlled. Six months after completing the study, patients undergo a final study evaluation and blood tests, and are then invited to return for yearly checkups after that.

The purpose of this clinical research study is to learn whether a muraglitazar-metformin combination is at least as effective as a glimepiride-metformin combination to treat type 2 diabetics who are not sufficiently controlled with metformin alone. The safety of this treatment will also be studied.

This study is not being conducted in the United States. Many people with type 2 diabetes cannot maintain target blood glucose levels when taking a single oral drug. The purpose of this study is to assess the safety and effectiveness of vildagliptin, an unapproved drug, compared to that of gliclazide in lowering overall blood glucose levels when added to metformin in people with type 2 diabetes not at target blood glucose levels on metformin alone.

Many people with type 2 diabetes cannot maintain their target blood glucose levels on a single therapy. The purpose of this study is to assess the safety and effectiveness of vildagliptin, an unapproved drug, in lowering overall blood glucose levels when added to insulin in people with type 2 diabetes who are not at target blood glucose levels on insulin alone.

The purpose of this study is to determine if the early initiation of a long acting insulin (i.e. glargine) with supplemental doses of short acting regular (SSR) insulin in hospitalized patients with diabetes who are fed using tube feedings reduces the frequency of high and low blood sugar levels when compared to use of SSR insulin alone.

The purpose of the study is to see how safe and effective and tolerable the use of colesevelam hydrochloride is for type 2 diabetes when added to metformin alone or in combination with other anti-diabetic drugs.