Older Adults Are More Digitally Engaged in Trials Than We Think

For many years, the clinical trial industry has treated older adults as a recruitment challenge, particularly in digital environments. Yet behavioral data from modern recruitment campaigns suggest something different. Older adults may represent one of the most overlooked opportunities in clinical trial recruitment.

At TrialScreen, we spend a great deal of time examining how people behave when they encounter research opportunities online. One of the most consistent signals appears when we look at engagement by age.

In several recent recruitment campaigns delivered through Meta advertising platforms, adults ages 65 and older represented less than 10% of total digital reach. This reflects Meta campaigns only and therefore captures only part of the broader digital behavior. Engagement within the same dataset, however, tells a different story.

Older adults show higher click-through rates in digital recruitment

Although adults over 65 accounted for roughly 10% of reach, they generated more than 20% of all advertisement clicks and consistently demonstrated the highest click-through rates across the campaign. Engagement steadily increased with age. In one campaign, users ages 18 to 24 clicked advertisements approximately 1.4% of the time, while participants ages 65 and older clicked nearly 6% of the time.

A clearer comparison appears when we examine the broader cohort under 45. Participants under 45 accounted for roughly two-thirds of total reach but generated a smaller share of engagement relative to their exposure. Adults over 65, by contrast, engaged at more than twice the rate their reach would predict. They were not the largest audience in the campaign, but they were the most responsive.

This pattern tells us something important about digital behavior. Younger audiences generate large volumes of impressions and traffic, often encountering information while scrolling through multiple platforms. Older participants tend to behave differently. When they encounter information that is directly relevant to their health or well-being, they are far more likely to pause, read and act.

In clinical trial recruitment, that kind of intentional engagement matters. Recruitment success does not depend on impressions alone. It depends on individuals motivated enough to explore participation.

Trial discovery and conversion rates among older participants

Website behavior reinforces this observation. Looking at organic traffic to the TrialScreen platform, adults ages 65 and older account for roughly 9% of identifiable visitors once uncategorized traffic is removed. Yet their behavior within the platform suggests a higher level of intent than this share alone might imply. This group generates more than 12% of trial searches, meaning they explore study opportunities at a rate roughly 1.4 times higher than their representation among visitors would predict. In practical terms, when older adults arrive on a trial discovery platform, they are more likely to actively investigate available studies rather than simply browse.

The pattern continues deeper in the engagement journey. Older participants also submit contact requests to learn more about specific trials at meaningful rates, particularly given the relatively small share of overall traffic they represent. Notably, their participation intensity exceeds that of younger cohorts. When adjusted for traffic volume, adults ages 65 and older convert at nearly twice the rate of visitors ages 18 to 24.

These patterns align with what patient engagement teams observe in conversations with prospective participants. Many older adults approach clinical trial participation thoughtfully, with genuine interest in understanding whether research may be relevant to their health or to conditions affecting people around them. Their engagement often reflects curiosity combined with a lived experience of disease.

Motivation and response patterns in older adult recruitment

Direct outreach provides another useful signal. In a recent text message campaign sent to approximately 12,000 individuals, roughly half responded indicating interest in learning more about research opportunities. Among those responses, older participants often replied within roughly 12 minutes of receiving the message, suggesting the invitation captured immediate attention.

None of this should be surprising. Today’s over-65 population has lived through decades of digital transformation and routinely manages banking, travel and health care online. At the same time, they are entering a stage of life when conditions such as hypertension, arthritis, cardiovascular disease and metabolic disorders become more relevant, making clinical research personally meaningful.

Motivation often follows. Older participants frequently describe research participation as a way to contribute to future treatments or to remain proactive about their health as they age. What they tend to value in return is clarity, respect and the ability to make informed decisions.

Removing barriers in clinical trial recruitment design

Where recruitment sometimes falters is not digital capability but system design. Eligibility language can be ambiguous, prescreeners can introduce unnecessary friction and recruitment messaging can unintentionally assume that older participants will not engage online. These design choices create barriers at precisely the moment when interest is highest.

As global populations continue to age, these insights become increasingly relevant for clinical research. Many therapeutic pipelines now focus on conditions that disproportionately affect older adults. For sponsors and research organizations, this represents a significant opportunity to strengthen recruitment by aligning digital strategies with how older adults already engage.

Older adults may represent a smaller share of digital reach within certain platforms, but behavioral signals suggest they are among the most intentional participants in the recruitment funnel. Sponsors and research organizations that design recruitment systems around real participant behavior rather than outdated assumptions may discover that the audience they once considered difficult to reach has been there all along.

Hugo Stephenson, M.D., is co-founder and executive chair of TrialScreen and a regular contributor to Applied Clinical Trials