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Clinical Trial Summary

Familial hypercholesterolaemia (FH) is an autosomal dominant somatic mutation commonly located on the LDL-receptor, APOB, and PCKS9 gene. The estimated prevalence of homozygous FH is estimated at 1 in a million, whereas the prevalence of heterozygous FH ranges from 1/500-1/200 (0.2-0.5%) of the general population. The majority of individuals suffering from FH remain undiagnosed and without treatment. Using preexisting clinical guidelines, this study scored patients within national cardiovascular disease (CVD) registries for FH with the aim of evaluating prevalence of FH among individuals suffering from premature cardiac events within the UK.

Following scoring of the registry, this study also examined the relationship between cholesterol and survival after a premature event in order to understand the possible ramifications of untreated FH on patient survival.


Clinical Trial Description

Familial Hypercholesterolaemia (FH) is a genetic disorder caused by a mutation in the low-density lipoprotein receptor (LDL-R) gene. Individuals suffering from FH experience elevated cholesterol levels that are outside of the accepted range of healthy cholesterol levels. When left untreated FH may cause complications in cardiovascular health and may cause premature cardiac events. Current screening methods for this disease do not successfully diagnose the majority of FH cases.

This study applies three clinical diagnostic tools--Dutch Lipid Clinic Network Criteria (DLCN-Criteria), Make Early Diagnosis to Prevent Early Deaths (MEDPED) criteria, and the Simon Broome Register Criteria--within national registries in order to define possible, probable, and definite cases of FH. The national registries used for this study are the Myocardial Ischaemia National Audit Project (MINAP) and National Audit of Percutaneous Coronary Intervention (BCIS) audit.

Following scoring of patients, a one-year and 30-day survival model were created in order to assess the effect of elevated cholesterol on survival, as suspected FH patients will have elevated cholesterol levels.

Data within MINAP ranges from 2003-2013 and data from BCIS ranges from 2007-2014.

Patient information within the audits was collected following admission to English and Welsh hospitals following a coronary event or percutaneous coronary intervention (PCI). Information related to survival and mortality was collected annually within each audit.

Participants for this study were those experiencing a premature cardiovascular event or coronary intervention (men <55 and women<60). ;


Study Design

Observational Model: Cohort, Time Perspective: Cross-Sectional


Related Conditions & MeSH terms


NCT number NCT02778646
Study type Observational [Patient Registry]
Source University College, London
Contact
Status Completed
Phase N/A
Start date January 2003
Completion date December 2014

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