There are about 13332 clinical studies being (or have been) conducted in Netherlands. 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.
Computed Tomography Angiography (CTA) is a non-invasive imaging tool widely used for various indications. Contrast media (CM) is used to enhance the intravascular lumen and organ parenchyma, depending on the indication. Recent technical advances in CT scan techniques allow for a very fast scan acquisition with substantially increased image quality in terms of temporal and spatial resolution. However, with faster scan acquisition, challenges arise with regard to CM bolus timing. The risk of outrunning the CM bolus in these fast acquisitions is higher, resulting in a decreased intravascular attenuation and subsequent hypothetical increase in non-diagnostic image quality. Previous studies have investigated the reduction of CM volume. When reducing the CM volume, the total injection time decreases and the window of peak enhancement shortens and becomes more narrow. The latter increases when injecting small CM volumes with higher flow rates. Although the peak enhancement increases, the window of peak enhancement decreases more rapidly. Thus, when administered with the same flow rate, the peak of the enhancement curve will be lower, narrower and faster compared to larger CM volumes. This, in combination with the faster scan acquisition makes the timing of the start of the scan highly important, since scanning at the peak enhancement is necessary to achieve a diagnostic image quality. New bolus tracking auto-delay software (Fully Automated Scan Technique, FAST, Siemens Healthineers) automatically estimates the delay needed to scan at the peak of the enhancement curve. With help of this software, the optimal individual scan delay and enhancement can be achieved, and the risk of non-diagnostic scans should decrease. Therefore, this study aims to evaluate the performance of the Bolus Tracking Auto-Delay (FAST) software in patients receiving a standard chest CT with regard to the number of non-diagnostic scans (< 300 HU) and compare this with standard care (manual set pre-scan delay).
The study will investigate whether administration of clazosentan can affect normal heart function in healthy subjects
The purpose of this study is to investigate the effects of nivolumab when given under the skin with or without rHuPH20. This study will include participants with 1 of the following advanced or metastatic tumors approved for treatment with nivolumab monotherapy: - non-small cell lung cancer (NSCLC) - renal cell carcinoma (RCC) - unresectable or metastatic melanoma - hepatocellular carcinoma (HCC) - microsatellite instability-high or mismatch repair deficient colorectal cancer (MSI-H/dMMR CRC) - in Part B, other solid tumors may be considered at the discretion of the Clinical Trial Physician - In addition to the above tumors, Part E will also include participants with metastatic urothelial carcinoma (mUC).
Rationale: Pemetrexed is a multi-targeted folate antagonist, which is primarily indicated for the treatment of advanced non-small cell lung cancer (NSCLC) and mesothelioma. Dosing of cytotoxic agents like pemetrexed requires balancing the dual risk of sub-therapy and toxicity. Administration of pemetrexed to patients with a creatinine clearance <45 ml/min is currently not advised. Pemetrexed is dosed based on body surface area (BSA), while renal function and dose are the sole determinants for systemic exposure. This causes 3 major issues: 1. In patients with renal dysfunction, BSA-based dosing may lead to haematological toxicity 2. Patients have to discontinue treatment due to declining renal function, and are withheld effective treatment 3. Even in patients with adequate renal function (GFR >45 ml/min) treatment may be improved by individualized dosing based on renal function, resulting in less toxicity. Also, BSA-based dosing may lead to ineffective therapy in patients with above average renal function. The investigators aim to address these problems. Objective: The overall main objective is to develop a safe and effective individualized dosing regimen for pemetrexed. Study design:IMPROVE-I is a single arm phase II pharmacokinetic safety study using a Simon two stage design to assess the feasibility of renal function-based dosing of pemetrexed in renal impaired patients. Study population: IMPROVE-I includes 23 patients with NSCLC or mesothelioma with an estimated creatinine clearance <45ml/min that meet all other requirements for pemetrexed treatment. Intervention:Patients will be treated with pemetrexed, with dosing based on renal function. As a safety measure, the first dose will be calculated to 50% exposure. After administration, safety and pharmacokinetics are assessed. If tolerated well, dose escalation to reach 100% exposure is performed, including assessment of safety and pharmacokinetics. Main study endpoints: The fraction (percentage) of patients with attainment of therapeutic exposure. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The investigators consider the extra burden from participating in the planned studies limited. The extra interventions compared to routine care, consist of sampling extra blood. The pharmacokinetic assessments require placement of one additional intravenous catheter. To ensure minimal impact of study participation on daily life, a limited sampling strategy will be used. Patients may benefit from participating in IMPROVE I and -II, as they will be treated with a potentially safe and effective drug that is dosed individually, which prevents toxic exposure
The purpose of this study is to evaluate the efficacy and safety of pemigatinib versus gemcitabine plus cisplatin chemotherapy in first-line treatment of participants with unresectable or metastatic cholangiocarcinoma with FGFR2 rearrangement.
Rationale: Pemetrexed is a multi-targeted folate antagonist, which is primarily indicated for the treatment of advanced non-small cell lung cancer (NSCLC) and mesothelioma. Dosing of cytotoxic agents like pemetrexed requires balancing the dual risk of sub-therapy and toxicity. Administration of pemetrexed to patients with a creatinine clearance <45 ml/min is currently not advised. Pemetrexed is dosed based on body surface area (BSA), while renal function and dose are the sole determinants for systemic exposure. This causes 3 major issues: 1. In patients with renal dysfunction, BSA-based dosing may lead to haematological toxicity 2. Patients have to discontinue treatment due to declining renal function, and are withheld effective treatment 3. Even in patients with adequate renal function (GFR >45 ml/min) treatment may be improved by individualized dosing based on renal function, resulting in less toxicity. Also, BSA-based dosing may lead to ineffective therapy in patients with above average renal function. The investigators aim to address these problems. Objective: The overall main objective is to develop a safe and effective individualized dosing regimen for pemetrexed. Study design: IMPROVE-III is an explorative microdosing study to assess the extrapolability of microdose-pharmacokinetics to the pharmacokinetics of a therapeutic dose. Study population: IMPROVE-III includes 10 patients of IMPROVE-I and/or IMPROVE-II. Intervention: patients will be administered a microdose with subsequent pharmacokinetic assessment. Main study endpoints: The predictive performance of microdosing to predict full dose pharmacokinetics
Rationale: Pemetrexed is a multi-targeted folate antagonist, which is primarily indicated for the treatment of advanced non-small cell lung cancer (NSCLC) and mesothelioma. Dosing of cytotoxic agents like pemetrexed requires balancing the dual risk of sub-therapy and toxicity. Administration of pemetrexed to patients with a creatinine clearance <45 ml/min is currently not advised. Pemetrexed is dosed based on body surface area (BSA), while renal function and dose are the sole determinants for systemic exposure. This causes 3 major issues: 1. In patients with renal dysfunction, BSA-based dosing may lead to haematological toxicity 2. Patients have to discontinue treatment due to declining renal function, and are withheld effective treatment 3. Even in patients with adequate renal function (GFR >45 ml/min) treatment may be improved by individualized dosing based on renal function, resulting in less toxicity. Also, BSA-based dosing may lead to ineffective therapy in patients with above average renal function. The investigators aim to address these problems. Objective: The overall main objective is to develop a safe and effective individualized dosing regimen for pemetrexed. Study design: IMPROVE-II is an open label, double arm, randomized study to compare renal function-based dosing of pemetrexed versus BSA-based dosing on attainment of therapeutic exposure. Study population: IMPROVE-II includes 94 patients with NSCLC or mesothelioma that are eligible for pemetrexed treatment. Intervention: patients will be randomized in a 1:1 ratio to Arm A (BSA-based dosing according drug label) or to Arm B (renal function based dosing). The renal function-based dose will be calculated to reach the target AUC. Pharmacokinetic assessment after administration will be performed after the first pemetrexed dose in both arms. Main study endpoints: The fraction (percentage) of patients with attainment of therapeutic exposure with BSA-based dosing versus renal function-based dosing. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The investigators consider the extra burden from participating in the planned studies limited. The extra interventions compared to routine care, consist of sampling extra blood. The pharmacokinetic assessments require placement of one additional intravenous catheter. To ensure minimal impact of study participation on daily life, a limited sampling strategy will be used. Patients may benefit from participating in IMPROVE I and -II, as they will be treated with a potentially safe and effective drug that is dosed individually, which prevents toxic exposure.
There is large heterogeneity in treatment response to asthma medication and a one-size fits all approach based on current guidelines might not fit all children with asthma. It is expected that children with one or more variant alleles (Arg16Arg and Arg16Gly) within the beta2 adrenergic receptor (ADRB2) gene coding for the beta2-receptor have a higher risk to poorly respond to long-acting beta2-agonists (LABA) comparing to the Gly16Gly wildtype. Aims To study whether ADRB2 genotype-guided treatment will lead to improvement in asthma control in children with uncontrolled asthma on inhaled corticosteroids compared with usual care. Design A multicentre, double-blind, precision medicine, randomized trial will be carried out within 20 Dutch hospitals. 310 asthmatic children (6-17 years of age) not well controlled on a low dose of inhaled corticosteroids (ICS) will be included and randomized over a genotype-guided and a non-genotype-guided(control) arm. In the genotype-guided arm children with Arg16Arg and Arg16Gly will be treated with double dosages of ICS and with the Gly16Gly wildtype with add on LABA. In the control arm children will be randomized over both treatment options. Lung function measurements, questionnaires focussing on asthma control (ACT/c-ACT) and quality of life, will be obtained in three visits within 6 months. The primary outcome will be improvement in asthma control based on repeated measurement analysis of c-ACT or ACT scores in the first three months of the trial. Additional cost effectiveness studies will be performed. Conclusion Currently, pharmacogenetics is not used in paediatric asthmas. This trial may pave the way to implement promising results for genotype-guided treatment in paediatric asthma in clinical practice.
This trial intends to investigate the basic pharmacokinetics of BI 425809 and [14C]- radioactivity, including mass balance, excretion pathways and metabolism following a single oral dose of 25 mg BI 425809 (C-14) given to healthy male subjects
First: to develop a computerized algorithm for automated analysis of the electrical impedance tomography (EIT) data. The algorithm calculates the "optimal" positive end-expiratory pressure (PEEP) and inspiratory pressure defined as the "optimal" balance between stretch, ventilation distribution and collapse. Second: to compare the results of the algorithm with the current standard of care clinical judgement of an experienced ventilation practitioner.