Abstract
Methods Ethics and Section 251 of the Health and Social Care Act approval allowed potentially eligible patients to be identified (without consent) from local site’s hospital records and invited by a central coordinating office to a local screening appointment. Following a screening visit and initial run-in phase to standardise background LDL-cholesterol management, those remaining eligible entered an active ERN/LRPT run-in to assess their tolerance of the drug and likely long-term compliance. Participants, if still eligible, were then randomized to ERN/LRPT or placebo.
Highlights
Recruitment into long-term trials requires identification and screening of potential subjects and strategies to maximize post-randomization compliance
We describe a successful strategy used for UK recruitment into a large international trial assessing the effect of extended release niacin/laropiprant (ERN/LRPT) on cardiovascular outcomes
Of the 14,237 entering the active ERN/LRPT run-in, 6202 (44%) withdrew before randomization; the majority (82%) due to adverse effects from ERN/LRPT. Without this active run-in, randomization of the 8035 participants would have been completed in about half the time but adherence to study treatment and completeness of follow-up after randomization would have been substantially worse than the 77% and > 99% achieved respectively, adversely affecting power
Summary
Recruitment into long-term trials requires identification and screening of potential subjects and strategies to maximize post-randomization compliance. We describe a successful strategy used for UK recruitment into a large international trial assessing the effect of extended release niacin/laropiprant (ERN/LRPT) on cardiovascular outcomes
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