Dose-intensified Rechallenge With Temozolomide, One Week On One Week Off Versus Three Weeks On One Week Off in Patients With Progressive or Recurrent Glioblastoma

For patients with progressive or recurrent glioblastoma there is no standard therapy. One strategy is re-exposure to temozolomide in a higher dose. This increase in dosing can be done by 2 regimens. Aim of this study is to compare these 2 dosing regimens concerning toxicity. In study arm A patients receive temozolomide for one week, followed by a week without temozolomide. In study arm B patients receive temozolomide for three weeks, followed by a week without temozolomide. The regimen that is less toxic will be selected for further evaluations.

开始日期2009-09-01

申办/合作机构

Heidelberg University, U.S.

[+1]

NCT00963261 / Unknown statusN/A

Side-effect Management for Patients With Malignant Melanoma Undergoing Treatment With Interferon Alpha (IFN-α)- Diagnosis and Therapy -

The purpose of this study is to analyse the physical and psychological side-effects in the course of treatment with IFN-alpha. The effectiveness of a specific intervention for the management of these side-effects is evaluated.

开始日期2009-04-01

申办/合作机构

Universitätsklinikum Köln

[+1]

NCT01384058 / Completed临床4期

The Effect of Ezetimibe 10 mg, Simvastatin 20 mg and the Combination of Simvastatin 20 mg Plus 10 mg Ezetimibe on Low Density Lipoprotein (LDL)-Subfractions in Patients With Type 2 Diabetes

It is of interest how ezetimibe alone or in combination with statin may influence atherogenic dense Low Density Lipoprotein (dLDL) in patients with type 2 diabetes mellitus. The primary objective of this study will be whether there is a change of the concentrations of Apolipoprotein B (ApoB) in dLDL from baseline in each of the 3 treatment groups.

开始日期2007-11-01

申办/合作机构

Essex Pharma GmbH

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2010-07-01·Laboratory Investigation2区 · 医学

Intraperitoneal LPS amplifies portal hypertension in rat liver fibrosis

2区 · 医学

Article

作者: Anna C Hartmann ; Manfred Bilzer ; Alexander L Gerbes ; Christian J Steib ; Christoph v Hesler ; Martin Hennenberg ; Andreas Benesic

Recent studies have shown that the risk of variceal bleeding in patients with liver cirrhosis increases with infections such as spontaneous bacterial peritonitis (SBP). In this study, we hypothesized that pretreatment with intraperitoneal LPS may escalate portal hypertension. In fibrotic livers (4 weeks after bile duct ligation, BDL), the activation of Kupffer cells (KCs) by zymosan (150 microg/ml) in the isolated non-recirculating liver perfusion system resulted in a transient increase in portal perfusion pressure. Pretreatment with intraperitoneal LPS (1 mg/kg body weight (b.w.) for 3 h) increased basal portal perfusion pressure, and prolonged the zymosan-induced increase from transient to a long-lasting increase that was sustained until the end of the experiments in BDL but not in sham-operated animals. Pretreatment with gadolinium chloride (10 mg/kg b.w.), MK-886 (0.6 mg/kg b.w.), Ly171883 (20 microM) or BM 13.177 (20 microM) reduced the maximal and long-lasting pressure increase in BDL animals by approximately 50-60%. The change in portal perfusion pressure was paralleled by a long-lasting production of cysteinyl leukotriene (Cys-LT) and thromboxane (TX) after LPS pretreatment. However, the response to vasoconstrictors was not altered by intraperitoneal LPS. Western blot analyses showed an increased Toll-like receptor (TLR)4 and MyD88 expression after LPS pretreatment. In vivo experiments confirmed that intraperitoneal LPS increased basal portal pressure, and extended the portal pressure increase produced by intraportal zymosan or by LPS infusion. In conclusion, upregulation of TLR4 and MyD88 expression in fibrotic livers confers hypersensitivity to LPS. This may lead to escalation of portal hypertension by production of TX and Cys-LT after endotoxin-induced KC activation. Therefore, LT inhibitors may represent a promising treatment option in addition to early administration of antibiotics in SBP.

2009-11-01·Hamostaseologie4区 · 医学

Improving antiplatelet therapy for atherothrombotic disease: preclinical results with SCH 530348, the first oral thrombin receptor antagonist selective for PAR-1.

4区 · 医学

Article

作者: Hildemann, S K ; Bode, C

Morbidity and mortality in patients with atherothrombotic disease remain high despite the use of antiplatelet therapy with aspirin and an ADP receptor antagonist. Selective inhibition of the principal protease-activated receptor (PAR)-1 for thrombin, the most potent agonist for platelet activation, represents a promising novel strategy to reduce thrombosis and ischaemic events. SCH 530348, a potent thrombin receptor antagonist (TRA) selective for PAR-1, has been evaluated in preclinical studies, demonstrating complete and sustained inhibition of thrombin/TRAP-induced platelet aggregation without a concomitant increase in the risk of bleeding. Phase 2 studies in patients undergoing non-urgent or urgent PCI showed that treatment with SCH 530348 in addition to the standard of care (aspirin plus an ADP receptor antagonist) is not associated with an increased risk of TIMI bleeding and is well tolerated, with a rate of adverse events comparable to standard therapy alone. These studies also demonstrated that the use of SCH 530348 in combination with aspirin and an ADP receptor antagonist may reduce the incidence of major adverse cardiac events, specifically periprocedural myocardial infarction, vs aspirin plus an ADP receptor antagonist alone. On the basis of these encouraging results, 2 ongoing large phase 3 randomized trials are evaluating the efficacy and safety of SCH 530348 in combination with the standard-of-care therapy in approximately 35,000 patients with NSTE ACS or established atherosclerosis.

2009-08-01·European Journal of Cardiovascular Prevention & Rehabilitation

Guideline-oriented ambulatory lipid-lowering therapy of patients at high risk for cardiovascular events by cardiologists in clinical practice: the 2L cardio registry

Article

作者: Senges, Juergen ; Jannowitz, Christina ; Gitt, Anselm K. ; Bestehorn, Kurt ; Juenger, Claus ; Karmann, Barbara

Background Lipid-lowering treatment has been proven to decrease the rate of cardiovascular events in high-risk patients with manifest coronary artery disease (CAD) or CAD equivalent risk profile. Current treatment guidelines recommend low-density lipoprotein-cholesterol (LDL-C) less than 100 mg/dl (optional < 70 mg/dl) as the target level for this high-risk population. Little is known about the ambulatory treatment of high-risk patients in clinical practice and the achievement of guideline recommended target values. Methods and results In the ‘2L cardio’ registry in Germany, 295 cardiologists enrolled 6711 consecutive patients with known CAD, and/or diabetes mellitus, peripheral arterial disease (summarized as ‘coronary risk equivalent’, CE), on chronic statin treatment. They recorded actual LDL-C values at entry, probable changes in therapy, and the expected LDL-C values using a lipid calculator based on an earlier observational study in a similar setting. The three groups comprised 2618 patients with CAD plus CE (39.0%; median LDL-C 112 mg/dl), 3436 patients with CAD only (51.2%; median LDL-C 108 mg/dl), and 657 with CE only (9.8%; median LDL-C 124 mg/dl). They had LDL-C levels less than 100 mg/dl in 36.2% [95% confidence intervals (CI): 34.3–38.1], 39.7% (CI: 38.0–41.4), and 27.2% (CI: 23.7–30.7), respectively. Statin doses at entry were usually in the lower to intermediate range (e.g. simvastatin median 25 mg/day). Cardiologists switched to another statin in 10.1% (9.4–10.8), increased the dose of statins (if same drug) in 22.2% (CI: 21.1–23.2) and/or added a cholesterol absorption inhibitor in 23.7% (CI: 22.7–24.7) of the patients. The cardiologists’ intervention improved expected LDL-C levels in the total cohort by a mean of 9.0 mg/dl, but the 100 mg/dl LDL-C target was only reached in 51.3% (CI: 50.0–52.5) of the total cohort. CE patients appeared undertreated in terms of antiplatelet drugs. Discussion Through infrequent increases in statin doses and mainly through add-on of a cholesterol absorption inhibitor, cardiologists improved target level attainment. Compared with earlier studies in the outpatient setting, the treatment to target for LDL-C of high-risk CAD patients has improved, but is not satisfactory.

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