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1. Comorbidity and Aging with HIV. An observational study.
2. AGEhIV substudy nr 1

1A) To implement a screening-protocol for HIV related co-morbidities and their risk factors, based on multidisciplinary expert consultation, in a large HIV outpatient clinic and among an HIV-uninfected control group.1B) To assess the prevalence and…

The role of gutmicrobiota composition, epigenetics and autoimmunity in the development and treatment of vasculitis; the VASKIR biobank

Primary Objective: Primary: Gut microbiota (oral and fecal) and nasal microbiota composition in relation to autoimmunity status (antibodies (ANA, ANCA) and HLA subtype) and inflammatory functional assays as well as disease&…

Is, in infertile women undergoing a basic fertility work-up, tubal flushing with oil-based contrast medium during hysterosalpingography (HSG) cost-effective compared to tubal flushing by hysterosalpingo-foam sonography (HyFoSy)? A randomized controlled trial.

The main objective of this study is to determine whether tubal flushing with oil-based contrast during HSG results into more pregnancies leading to live births when compared to tubal flushing with ExEm-foam during HyFoSy, and whether this approach…

Assessment of the alignment of the Atlas and surrounding tissues in chronic whiplash associated disorder.

The aim of this study is to assess the position and alignment of the Atlas, as measured by the angles between the atlas and the surrounding vertebrae in healthy participants, patients with chronic headache, and patients with…

National study of inherited platelet function disorders in the Netherlands

Primary objective: to register and investigate Dutch patients suspect for an inherited platelet function disorder, to assess clinical presentation, bleeding score, treatment, burden of disease and quality of life. Secondary objectives: to…

Platelet RNA as Biomarker for Delayed Cerebral Ischemia in Subarachnoid Hemorrhage

The primary objective of this study is to evaluate whether SAH patients at risk of developing DCI show a distinguished platelet RNA profile compared to patients without DCI. Secundary objective; to evaluate whether platelet RNA analyses can predict…

Understanding colchicine resistance in Familial Mediterranean Fever; exploring pathophysiological mechanisms and therapeutic options

The primary objective is to identify what causes colchicine resistance in FMF. Additionally, we will try to identify potential interventions to overcome resistance

COBRA re-KAI study: research into the immune response of COVID-19 revaccination after stem cell transplant or B-cel depleting immuno(chemo)therapy.

To answer the following questions: 1. Who are the patients that need to be revaccinated?2. How many vaccinations are needed to restore SARS-CoV-2 immunity?3. Can the number of vaccinations needed to restore SARS-CoV-2 immunity be predicted?To…

Growing Up Together in Society: Amsterdam High-risk Antisocial Cohort

The current study describes the Antisocial High-Risk Cohort (i.e., WP3, a sub-project) of the larger Growing Up Together in Society Project (see appendix A), which has the aim to predict and understand behaviour that negatively affects society:…