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In a cohort of patients with systolic dysfunction, the ACE D allele was associated with a significantly poorer transplant-free survival. This effect was primarily evident in patients not treated with beta-blockers and was not seen in patients receiving therapy. These findings suggest a potential pharmacogenetic interaction between the ACE D/I polymorphism and therapy with beta-blockers in the determination of heart failure survival.

-Promotion of research is a key strategy of the National Health Service (NHS). Currently, many patients are not afforded the opportunity to participate in clinical studies. A register of research-interested patients has the potential to maximise inclusivity. We have established a register of research-interested patients with Parkinson's disease within the South West of England, with pragmatic inclusion criteria and multiple recruitment routes. We undertook an analysis of the register, investigation of its utility as a recruitment tool and a survey of recruiters. There were 529 active participants; 30% were self-referred and 70% were recruited by a healthcare practitioner. Response rate to annual questionnaires was 86.5%. Staff time required for pack preparation, recruitment and data entry was 15 min per new recruit and 5 min per follow-up questionnaire. In total, 85% of recruiters viewed the register positively. A single mailing to participants resulted in a recruitment rate that significantly exceeded that achieved by traditional recruitment methods.

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