Active clinical trials for "Congenital Abnormalities"

The MiMBa (Malaria in Mothers and Babies) Pregnancy Registry aims to generate robust evidence on the safety of a range of antimalarials when used in pregnancy, particularly in the first trimester. This will be a multi-country observational study and will be deployed in several field sites in Africa.

Foot deformities are one of the most common orthopedic problems in patients with cerebral palsy(CP). Various methods have been proposed to evaluate foot morphology. Arch height index (AHI) measurement is a simple and quantitative method that can be applied in outpatient settings to evaluate the morphology of the medial longitudinal arch(MLA) of the foot. In this study, we aim to investigate the feasibility of AHI measurement in children with CP and, to identify other clinical findings that may be related to foot arch height determined by the AHI method.

Cerebrovascular malformations (CVMs) are a heterogeneous group of disorders and can be classified histopathologically into five main categories: arteriovenous malformations (AVMs), dural arteriovenous fistulas (AVDs), abnormalities of venous development or venous angiomas (VAS), cavernous malformations (CVMs), ) and capillary telangiectasis (TAC). A further classification, more useful from a therapeutic point of view, is the functional one, which provides for a subdivision into two categories: CVD with arteriovenous shunt - among which AVMs and AVD stand out - and CVD without arteriovenous shunt. AVMs and AVDs represent the two cerebrovascular malformations of greatest interest in the field of interventional neuroradiology. AVMs generally have a congenital origin, an estimated prevalence in the population of 0.005-0.6% and are most commonly diagnosed between the ages of 20 and 40, with an estimated annual bleeding risk between 4% and 4%; AVDs are rarer and have a predominantly acquired origin, in relation to previous thrombosis and trauma. Intra- and extra-parenchymal hemorrhages are a frequent finding of cerebral vascular malformations, associated or not with headache, epileptic seizures or focal neurological deficits (from mass effect or vascular steal, with consequent ischemia); in this particular situation, the patient is subjected in the shortest possible time to a clinical-anamnestic assessment, to evaluate the severity of the clinical picture, which is followed by a tomographic examination to evaluate the extent of the lesions and classify the malformation- classification of Spetzler-Martin for AVMs and Cognard or Borden classification for AVDs. Therefore, it is the authors' intention to conduct a retrospective and prospective observational study with the aim of exploring the possible implication of new variables that can predict with sufficient accuracy the outcome of patients with ruptured and unruptured cerebral vascular malformations; a possible positive response could be followed by a more structured clinical trial with which to derive the appropriate conclusions with greater methodological soundness.

The purpose of this study is to measure functional activity and stability in spinal deformity patients utilizing motion analysis testing and accelerometers.

Number of centres planned : 16 centres in France Type of study / Study design : Research Involving the Human Person category 2. Multicentric. Prospective Planning of the study : Total duration: 22 years. Recruitment period: 24 months. Follow-up time per patients : 20 years Expected number of cases : 300 index cases: 150 single index cases and 150 trio families Treatment, procedure, combination of procedures under consideration : Blood samples for genetic analyses collected at the inclusion visit for patients and parents in case of trio families Schedule of different visits and examinations : Inclusion visit: Collection of demographic, clinical data from the index case and parents DNA sampling for genetic research (biocollection) of the index case or family trio Completion of the quality of life questionnaire Annual visit with a 20 year follow-up: Retrieval of data from the index case Completion of the quality of life questionnaire

This is a Phase 2, multicenter, double-blind, sponsor unblinded, placebo-controlled, single-dose clinical study of CRD-4730 to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of CRD-4730 when administered as single oral doses to participants with Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT). The study will have 2 cohorts in which participants with CPVT will participate in a 3-period, randomized 2-sequence study. Each participant will receive 2 different doses of CRD-4730 and 1 dose of matching placebo, with each study drug administered as a single dose.

The present study intends to: 1）establish a multi-center large-sample randomized controlled trial to explore the technical advantages and surgical indications of the novel surgical technique of CLIF correction for ASD compared with the conventional correction strategy; 2）analyze the postoperative clinical and imaging results, and to explore the related complications and preventive measures; 3） establish 2-year follow-up to further quantify the clinical and radiographical outcomes of CLIF correction.

Approximately 340 babies are born with Hirschsprung's disease (HSCR) or an anorectal malformation (ARM) per year in the UK. Most require corrective surgery in the newborn or early infancy period. In both conditions, there is both variability in the severity of the condition and the type of operative technique used. Many children do well following surgery and have good continence in later life. However a significant proportion of children suffer from a lifetime of constipation or incontinence. This has a significant impact on their social and psychological welfare and is a significant burden on healthcare resources. Due to the variation in practice, there are limited data on long-term outcomes following surgery for children with HSCR or ARMs. Where studies have been performed, they often include small numbers, non-standardised outcome measures and short follow-up periods. It is therefore difficult to ascertain the effectiveness of different management strategies. However, a recent Delphi process has been carried out to establish 10 core measures in HSCR to improve outcome reporting. This research group has a long track record in this research area, specifically in the determination of long-term outcomes of children with HSCR, leading to well cited papers within the literature. In the last 2 decades there has been a significant change in the surgical techniques used in HSCR, however the underlying evidence base for this is still lacking. This study seeks to follow-on from previous studies looking specifically at the long-term outcomes in children with HSCR. Furthermore, the aim is to widen the study to encompass all children treated at Alder Hey and also to use the same methodology to assess long-term outcomes for children with ARMs, as both groups of patients experience similar long term morbidity. This will provide qualitative and quantitative data aiding counselling parents of children with HSCR/ARM.

The purpose of this study is to investigate the role of multimodal CT in evaluating and predicting different clinical outcomes in patients with unruptured brain arteriovenous malformations with medical management alone. This study will be undertaken in the following aspects: Morphological, structural and imaging histological signal analysis based on multimodal CT to explore the relationship between imaging features and different clinical outcomes of bAVMs. Hemodynamic and flow pattern analysis of local and peripheral bAVMs based on multimodal CT to explore the association between blood flow features and different clinical outcomes. Based on multimodal CT and deep learning algorithms to create an automated segmentation model for bAVMs and a prediction model for distinct clinical outcomes. The obtained patient information includes: Baseline information, CT, MRI, DSA (Optional), and follow-up information. Follow-up will be undertaken at 6 months, 12 months, 24 months and 36 months after enrollment with the following primary observation. Main observation endpoints: Hemorrhage events associated with bAVMs New epilepsy symptoms or exacerbations New neurological dysfunction(including motor dysfunction, cognitive dysfunction, etc).

The right ventricular (RV) systolic function is a key determinant of outcome in patients with pulmonary hypertension and elevated pulmonary vascular resistance. As the pulmonary artery pressure and vascular resistance increase (i.e. RV afterload) in these patients, so does the right ventricular contractility in an attempt to maintain cardiac output. This is response of a ventricle to its afterload is termed ventriculo-arterial (VA) coupling. However, there is a limit to this increase in contractility after which VA uncoupling occurs ultimately leading to decrease cardiac output and right ventricular failure. The accepted gold standard for measurement of VA coupling is the ratio of the end systolic ventricular elastance (Ees) to the end systolic arterial elastance (Ea) measured invasively via high fidelity conductance catheters during cardiac catheterization. In this study, the aim is to devise a non-invasive scoring system that can identify VA uncoupling in patients with elevated pulmonary vascular resistance using echocardiography, cardiac MRI, cardiopulmonary exercise testing and brain natriuretic peptide levels. The hypothesis is that a group of morphologic and functional variables obtained noninvasively can differentiate an RV with VA coupling from that with VA uncoupling.