View clinical trials related to Fibrosis.
Filter by:Acute systemic hyperglycemia causes oxidative stress and a pro-inflammatory response. The pro-inflammatory cytokines induced by hyperglycemia are toxic to islet insulin producing cells, and thus worsen glucose intolerance. Patients with cystic fibrosis (CF) have a high prevalence of CF related diabetes (CFRD) and up to 40% of CF adults develop CFRD. During the prediabetic phase in CF, there is progression from normal glucose homeostasis to high risk prediabetes characterized by episodes of acute hyperglycemia after meals and during respiratory exacerbations. The mild hyperglycemia seen in CF patients with high risk prediabetes following a meal would be expected to induce a degree of systemic inflammation and oxidative stress. These repetitive episodes, if left unchecked, could lead to progression of glucose impairment, worsening severity of oxidative stress and inflammation, and ultimately the development of CFRD, all via hyperglycemia-induced toxicity to beta cells. Furthermore, this process may be accelerated in CF because lung disease and resultant respiratory exacerbations are associated with oxidative stress and inflammation and this will further contribute to beta cell damage. Sitagliptin is a recently approved agent for type 2 diabetes and markedly enhances insulin secretion in the presence of hyperglycemia and has been shown to be effective in preventing postprandial hyperglycemia. The hypothesis to be tested in this project is that sitagliptin will prevent the development of CFRD in CF subjects with high risk prediabetes by blocking postprandial hyperglycemia. The investigators propose a randomized, double-blind, placebo-controlled, multicenter, 15-month longitudinal study in 118 CF subjects with high risk prediabetes to test this hypothesis. Specifically, the investigators aim to show that chronic treatment with sitagliptin: prevents the conversion to diabetes; results in preservation of beta cell function; reduces systemic measures of oxidative stress and inflammation; and slows the rate of progression of lung disease. Funding Source - FDA Office of Orphan Products Development
This study will test the effectiveness of warfarin in patients with IPF. Approximately 256 patients will be randomized 1:1 to either warfarin or placebo. Patients will return at week 1 for a safety review and every 16 weeks for 48 weeks. The primary endpoint in the study is the time to either death, non-bleeding/non-elective hospitalization, or a drop of greater than 10% in forced vital capacity (FVC) from baseline.
The purpose of this study was to evaluate the safety and efficacy of ivacaftor in participants with cystic fibrosis (CF) who were aged 12 years or older and were homozygous for the F508del-CF transmembrane conductance regulator (CFTR) mutation. Ivacaftor is a potent and selective CFTR potentiator of wild-type, G551D, F508del, and R117H forms of human CFTR protein. Potentiators are pharmacological agents that increase the chloride ion transport properties of the channel in the presence of cyclic adenosine monophosphate (AMP)-dependent protein kinase A (PKA) activation.
The purpose of this study is to determine whether Pycnogenol, a natural pine bark extract, is effective in modifying the age-dependent process of cardiac fibrosis and diastolic function in aged hypertensive subjects.
Ambrisentan is an endothelin receptor antagonist used for the treatment of pulmonary hypertension (PH). Based on research suggesting a role for endothelin-1 in the pathogenesis of idiopathic pulmonary fibrosis (IPF) and the poor prognosis for patients with IPF who are also diagnosed with PH, this study was designed to evaluate the effectiveness and safety of ambrisentan in that patient population.
The purpose of this study is to obtain data on the potential of long-term treatment with denufosol to improve the clinical course of CF lung disease in patients with mildly impaired lung function and to provide CF patients who completed study 08-110 continued access to denufosol.
The purpose of this study is to compare the effect of three airway secretion clearance techniques (chest physical therapy, flutter device and high frequency chest wall oscillation) on decline in pulmonary function over a three year period in patients with cystic fibrosis.
The objective of the study is to evaluate the superiority of treatment with PegIntron and Rebetol over no antiviral therapy (control group) in subjects with chronic hepatitis C and type C compensated cirrhosis. Subjects will be randomized in a ratio of 2:1 (Treatment Arm to Control Arm). Subjects in the Treatment Arm will receive combination therapy with PegIntron and Rebetol for 48 weeks; then will enter a 24-week post-treatment Follow-up. Subjects who have detectable Hepatitis C Virus-RNA at Treatment Week 24 will discontinue treatment and enter Follow-up.
Our hypothesis is that Growth Hormone (GH) will not only target the peripheral tissue to stimulate weight and muscle growth which will maximize nutritional potential and improve overall quality of life. We theorize that this will occur through a multitude of factors: increased appetite, more constructive utilization of caloric intake and decreased catabolic signaling. The first aim will address changes in weight and lean body mass following the institution of GH therapy in adults with Cystic Fibrosis (CF) related wasting. The second aim will measure impact on quality of life of these individuals. Additionally, the third aim will monitor effects of GH therapy on diabetes and insulin sensitivity. Finally, the fourth aim will observe changes in the subjects underlying diagnosis of CF, specifically lung function, muscle strength and inflammatory state.
This study will evaluate the safety and efficacy of omalizumab for the treatment of Allergic Bronchopulmonary Aspergillosis (ABPA) in patients with Cystic Fibrosis aged 12 years and older.