Active clinical trials for "Aggression"

Recent studies estimate that the prevalence of pituitary adenomas is approximately 1/1500 persons. Pituitary tumours are usually considered as benign. However, local invasion is reported in 35-40% of pituitary adenomas; resistance to medical treatment or recurrence leading to multimodal therapy is reported in about 15% of cases. These tumours are considered as aggressive pituitary tumours and present a distinct biological and clinical entity with continued growth despite multimodal therapy, including surgery and radiotherapy (McCormack et al., 2011). Whilst these tumours have malignant potential, the term of pituitary carcinoma is strictly reserved for those rare tumours (0.2%) with demonstrated craniospinal or systemic metastases (Heaney, 2011). Pituitary aggressive and malignant tumours are very difficult to control and ultimately prove to be lethal. It was suggested that early aggressive treatments (chemotherapy, radiotherapy) may control progression and occurrence of metastases. However, these therapeutic options are associated with important side effects limiting their use and the prediction of pituitary tumor behaviour remains a challenge. At the diagnosis, clinical signs are not specific and the results concerning proliferative factors (Ki-67 and P53), putative oncogenes (PTTG) conflict from one series to another. In a case-control retrospective study of a cohort of 410 patients (HYPOPRONOS), we validated a prognostic pathological classification based on histological and radiological data (J. Trouillas 2012 in preparation). Tumours were classified into 3 grades: grade 1= non-invasive tumour, grade 2= invasive tumour and grade 3 = aggressive-invasive tumor with the combination of radiological signs of invasion and 2 of 3 signs of increased proliferation (Ki-67 index>3%, number of mitoses>2 per 10 fields at 400X, P53 nuclear detection). It is now widely accepted that cancer is a clonal disease, which arises from a single normal cell and progresses thanks to the accumulation of DNA alterations (Sanson et al., 2011). To identify the role of these DNA alterations, we conducted array CGH analysis limited to 13 prolactin pituitary tumours, from frozen fragments, and identified allelic loss of chromosome 11 associated with aggressiveness and malignancy (Wierinckx et al., 2011). To confirm these encouraging results we propose to conduct a study on a large series of tumours, fixed and embed, and to be correlated the results to clinical data.

The aim of the present study is to evaluate the health of immediately placed dental implants in aggressive periodontitis patients versus those placed in periodontally healthy individuals in the maxillary esthetic zone.

Cost-effectiveness study of 2 disease-modifying therapies (natalizumab versus mitoxantrone followed by immunomodulator) in the management of aggressive remitting multiple sclerosis

The aim of the planned online study is twofold. First, it opts to deliver further evidence for the existence of the construct ego-depletion. Second, it tries to further validate the German version of the word-stem completion task as a measure of implicit aggression. The psychological assessment of aggression is not a trivial aspect, however. In general, explicit measures of aggression have a higher face validity than their implicit counterparts. However, even implicit measures, such as the implicit association test for aggression, have a certain amount of face validity, since participants might be able to infer that the task is related to aggression. Another implicit aggression measure is the word-stem completion task, which asks participants to complement word-stems in order to build words. Lately, we have developed a German version of this task and found some promising first results, i.e., a factor analysis indicated that the word-stem completion task explained unique variance in aggression. The present study aims to further validate the German version of the word-stem completion task by experimentally manipulating aggression through an ego-depletion paradigm, in which cognitive resources are depleted. It is expected that participants in the ego-depletion condition build more aggressive solutions on the word-stem completion task than participants in the control group.

This tests the immediate impact of two brief interventions on couples reporting intimate partner violence using the proximal change experimental design. Couples will be randomly assigned to a mindfulness conditions, a communication exercise or a placebo condition. Outcome measures include observed and experimentally assessed aggression.

A study to see if coordinated aggressive patient management will improve patient treatment outcomes and is cost effective.

This study aims at identifying predictors of suicidal behaviors in depressed subjects. Investigators will first compare demographic, clinical, and biological features of depressed recent suicide attempters (within one week) and depressed subjects without lifetime history of suicide attempt. Baseline risk factors for suicide will be used to predict the risk of attempting suicide during a one year follow-up. A thorough evaluation of these patients will allow to identify the factors associated with suicidal risk and develop a simplified risk score that could be used in clinical settings to improve our practice.

This study evaluates the interaction between host immune cells and bacteria associated with periodontitis. It comprises biological material from donors with and without periodontal disease. Specifically, we collect a spit and blood sample to conduct in vitro stimulations and measurements of selected parameters related to periodontitis to clarify obscure areas in the immunologic pathogenesis of this disease.

This study is a retrospective analysis of an homogeneous population of patients with aggressive B-cell lymphoma and treated upfront with R-CHOP or R-CHOP like regimens to reassess the prognostic factors and hopefully to identify more accurate prognostic subgroups with a clinical and therapeutical relevance.

Cancer is the commonest cause of death in Singapore, and many cancer deaths occur in hospital. Management of cancer patients is getting more complex with constant development of new drugs, interventional procedures and supportive measures. Despite this, the majority of advanced cancer patients will die from their disease or related complications. There is a lack of data on the utilisation of health resources in advanced cancer patients in this country. In this study the investigators ask themselves how aggressive care was in the last 3 months of the patient's life. The investigators will be collecting data on specific cancer treatments, interventional procedures, and supportive measures.