Clinical trials

This double arm, split-mouth, single centre, controlled, randomised clinical study is designed to examine the effect of implantoplasty in treatment of peri-implantitis. Peri-implantitis will be treated with open flap debridement, with or without implantoplasty.

The goal of this prospective, cohort study is to learn about smell, taste and trigeminal dysfunction in patients receiving allogeneic hematopoietic stem cell transplantation (allo-HSCT). The research team hypothesizes that treatment with allo-HSCT will induce: * Distortion of taste and smell and trigeminal functions like cooling, tingling, and burning sensations. * Reduced saliva production leading to oral dryness and dental caries. * Changes in the connectivity of the taste-, smell- and pain-cortical brain regions.

Some adolescents experience periods of anxiety and/or depression, and some find that these periods return over time. The purpose of this study is to examine whether digital interventions-where individuals work systematically with their own thoughts and feelings during periods when they feel well-can help them maintain well-being for longer. The study includes adolescents aged 16-19 who have previously experienced episodes of depression and/or anxiety to a degree that led them to seek help (e.g., from a school nurse, general practitioner, health clinic, or child and adolescent mental health service). Through a research app on their smartphones, participants complete tasks and answer questionnaires. The study is fully digital. Some participants meet with a therapist in digital group sessions, while others work independently with the digital content. We will also examine the cost-benefit aspects of offering such interventions. If the study achieves its goals, digital interventions may eventually become a service offered to adolescents recovering from depression and anxiety.

Study of the applicability of machine learning tools in detecting inspiratory leakage in longterm non-invasive ventilation. The study was conducted in two stages. Firstly the ML model was trained on both bench model created scenarios and then ten patients. And secondly the success of the model was assessed in a proof of concept pilot study of ten patients.

The MOP II study examines how to improve therapy for people struggling with a depressive disorder. Cognitive Behavioral Therapy (CBT) and Short-Term Psychodynamic Psychotherapy (STPP) are two evidence-based treatments for depression that are widely used. Meta-analyses indicate that CBT and STPP are one average equally effective and superior to no treatment. However, many patients do not respond sufficiently and relapse rates after acute phase treatment are high. Earlier research and theoretical insights suggest three promising strategies to enhance the effectiveness of psychotherapy. First, we want to examine whether increasing the frequency of the sessions will increase the effect of therapy. We want to compare once-weekly and twice-weekly sessions in both CBT and STPP to see whether more frequent sessions lead to better and more lasting reductions in depressive symptoms with the same total number of sessions. Second, the study aims to answer what works for whom in two different psychotherapeutic approaches. People with depression differ in personality, life experiences, relationship styles, and how they understand the causes of their depression. Previous findings suggest that patients do better when the therapy approach matches how they see their problems. The MOP II study wants to replicate this finding. Third, the study wants to examine how therapy leads to change. In CBT, improvement is thought to happen through changes in thinking patterns, such as fewer negative automatic thoughts and less rumination. In STPP, change is expected to come from better self-understanding, greater emotional awareness, and healthier ways of relating to others. Consequently, the goal of the MOP II study is to find out whether more frequent therapy, better matching of patients to treatment type, and a clearer understanding of how therapy works can lead to faster improvement of depressive symptoms.

A poor nutrition status is a modifiable risk factor for cognitive decline and dementia. In particular, evidence links low status of certain B-vitamins and ω-3 fatty acids (ω-3 FA) with a greater risk of cognitive decline and dementia. Although these dietary components are typically investigated separately, post-hoc analyses of existing clinical trial data and experimental work indicate that B-vitamins and ω-3 FA may exert synergistic beneficial effects on processes related to brain health and cognition. However, this combination has not been tested directly in humans. In the proposed BOOMERANG project, we will study the effects of jointly supplementing with B-vitamins and a highly bioavailable ω-3 FA supplement, Lysoveta, on a robust biomarker of brain atrophy, the neurofilament light chain, in a double-blinded randomized controlled trial (RCT) over 3 months in older adults. We will also examine the secondary effects of the supplement of quality of life and cognitive function.

Acute chest pain is a prevalent medical emergency in primary emergency care settings. Triage of chest pain prior to hospital admission presents significant challenges due to the absence of sufficiently sensitive diagnostic tools. Clinical signs, symptoms, risk assessment scores, or a normal electrocardiogram (ECG) can reliably exclude acute myocardial infarction (MI). This diagnostic uncertainty has resulted in chest pain being the second most common cause for acute hospital referrals from Norwegian emergency primary care, even though chest pain is frequently non-cardiac in origin. In acute MI events, cardiac troponins are released into the bloodstream from the damaged myocardium, where low values are used to exclude MI. Until recently, such testing has necessitated using high-sensitivity cardiac troponin (hs-cTn) assays, which have been limited to hospital laboratories. However, recent technological advancements in point-of-care (POC) testing allow access to whole-blood assays that meet high-sensitivity criteria. In this upcoming project, the investigators will evaluate the implementation of a whole-blood POC assay (QuidelOrtho TriageTrue hs-cTnI) across six Norwegian emergency primary care clinics. The study plans to enrol 2,500 patients over a period of 1.5 years. The clinical performance of the novel strategy will be investigated, as well as its impact on healthcare utilization and hospital referrals compared to standard care. Additionally, the investigators will assess the prevalence of persistent chest pain and its effects on quality of life, alongside psychological stress and anxiety, through validated questionnaires. This project aims to offer better and more comprehensive management of the large group of emergency primary care patients with acute chest pain, contributing to reduced hospital referrals, improved quality of life, and more sustainable use of healthcare services.

The overarching aim is to generate knowledge to reduce incidence of pain in non-verbal patients' everyday life. The trial will 1) evaluate how HR can be used to identify potentially painful care procedures that should be re-evaluated in terms of the approach taken; 2) test the effect of heart rate (HR)-informed changes in potentially painful care procedures on biomarkers of pain, and 3) assess how six weeks of communication through HR affects the quality of communication between patient and caregiver.

Brain abscess is a focal bacterial or fungal infection of the brain. Treatment is neurosurgical drainage of pus followed by long-term antibiotic treatment. In spite of successful treatment of the infection, long-term cognitive problems or mental fatigue may ensue. The reason for this dysfunction may be a continuing inflammatory state or damage to brain tissue caused by the abscess. The investigators will evaluate these possibilities with the use of \[18F\]deoxyglucose-positron emission tomography (FDG-PET) and electroencephalography (EEG) in patients who have been treated for brain abscess and who experience cognitive problems and/or fatigue. FDG-PET may identify both inflammation and altered neuronal activity (the latter indicating damage to brain tissue), and EEG may identify altered neuronal activity, including changes in neuronal network activity.

Some persons with intellectual disability or comprehensive cerebral palsy cannot communicate unequivocally how they are, how they react to situations and people, whether they are in pain or experience discomfort, anger or fear. Their modes of communication (sounds, grimacing etc) may be unintelligible or ambiguous to their caregivers. With the use of heart and/or respiration monitors the investigators aim to give these persons a means to communicate their immediate reactions or responses. The respiration monitor is meant to register sleep at night, so that the participants can communicate whether they have slept well or not the previous night.

This study will develop and evaluate a complex intervention to implement advance care planning for severely ill home-dwelling elderly acutely admitted to hospital, by using a cluster randomized design. Twelve Norwegian acute geriatric hospital units will participate in the main study, each as one cluster. Of the twelve clusters, half will receive implementation support and training immediately, and the other half will receive similar support after the intervention period. The study includes 1) assessment of implementation outcomes (fidelity) in the participating units,2) health service and clinical outcomes including a) questionnaires to all staff in the units before and after the implementation period, questionnaires to attending clinicians and qualitative interviews with health personnel and local unit leaders b) questionnaires to patients and their relatives, patients records and data from central health registers and qualitative interviews with patients and relatives. Furthermore we will assess barriers and facilitators for advance care planning in 1) a wider health service context, and 2) at the national, regional and municipal level, and do economic analyses.

The goal for this clinical trial is to explore the effect of CBT/MCT on the treatment of low self esteem. 20 patients with low self-esteem will be selected and distributed into two either MCT or a CBT We aim in this study to (1) evaluate the accessibility and effectiveness of MCT and CBT in treating low self-esteem, (2) investigate the patterns of change and the mechanisms of action involved during treatment, and (3) examine the impact of meta-cognitions and neuropsychologial processes in the treatment response and any relapse prevention of low self-esteem.

This is an interventional clinical study on the peri-implant treatment necessary to improve the clinical conditions surrounding dental implants registered with peri-implant inflammation. The focus of this double-armed, examiner blinded, controlled, randomized clinical trial is to examine the effect of short-term increased frequency of a SPiT (supportive peri-implant treatment) protocol on implants diagnosed with peri-implant mucositis. The study is a part of a project assessing the frequency of supportive peri-implant therapy. The current is on treatment of peri-implant mucositis (inflammation and no attachment loss at the implants) and secondary prevention of peri-implant mucositis. The other study is a RCT on non-surgical treatment of peri-implantitis (inflammation and exposed implant surface) (REK 790240). Exposure of rough surface may dramatically change the frequency of maintenance needed to improve the inflammatory condition. Thus, a segregation between adequate and low bone level at the implant is necessary. Subjects with more than one implant and both diagnoses, may be enrolled in both studies, following the frequency of treatment randomized in the peri-implant mucositis study.

This is an interventional clinical study on the peri-implant treatment necessary to improve the clinical conditions surrounding dental implants registered with peri-implant inflammation. The focus of this double-armed, examiner blinded, controlled, randomized clinical trial is to examine the effect of short-term increased frequency of a Non-surgical protocol on implants diagnosed with peri-implantitis. The study is a part of a project assessing the frequency of supportive peri-implant therapy. The current is on non-surgical treatment of peri-implantitis (inflammation and exposed implant surface). The other study is a RCT on treatment of peri-implant mucositis (inflammation and no attachment loss at the implants) and secondary prevention of peri-implant mucositis (REK 790097). Exposure of rough surface may dramatically change the frequency of maintenance needed to improve the inflammatory condition. Thus, a segregation between adequate and low bone level at the implant is necessary. Subjects with more than one implant and both diagnoses, may be enrolled in both studies, following the frequency of treatment randomized in the peri-implant mucositis study

Some patients develop cognitive decline after a stroke, but we don't always understand the mechanisms. It has been proposed that a proportion of the patients develop an autoimmune immune response, and that this could potentially explain the cognitive decline in some of the patients. The current study aims to investigate this hypothesis in a subgroup of patients with stroke.

Little research on the health service utilization and the health situation of undocumented pregnant migrants has been performed previously, and it is essential to obtain more information on the services given, and to examine whether residency status is a risk factor in maternal and perinatal health among migrants.This project will give new knowledge on undocumented women seeking care at the voluntary clinics and the emergency clinics (DEGPs) in Oslo and Bergen, their health care needs, and the medical follow-up they are provided. The project will present new knowledge by showing trends in undocumented pregnant migrants care seeking compared to general trends among other migrants and Norwegian residents. It will also give new knowledge on pregnancy outcomes and perinatal health in undocumented migrants compared to foreign and Norwegian born women. This approach has not previously been used to study undocumented migrants in Norway, and there are very few similar studies in other European countries. Cause and effect relations are rarely claimed in findings from observational epidemiologic studies, however the information from three different sources (voluntary clinics, emergency clinics and Medical Birth Registry) will give an overall picture of the use of primary health care in undocumented pregnant migrants, as well as a comparative assessment of maternal outcomes in this population. The proposed research will also give important knowledge on how to conduct quantitative research in a population that is difficult to reach, and that is not commonly included in research.