Decision Support Should Resolve Paralysis, Not Push Enrollment.

Behavioral science belongs in clinical trials. Its job is to make choice clearer, not to make yes easier than no.

Decision paralysis is usually designed into the experience.

Patients may pause because the information is dense, the next step is unclear, risk feels difficult to compare, or several decisions have been compressed into one moment. These are predictable responses to a high-stakes environment, not evidence that the patient lacks motivation.

The first task is diagnosis. Is the patient missing information, struggling to interpret it, afraid of regret, unable to see how participation fits daily life, or simply not ready to decide? Each cause requires a different response. More reminders will not resolve an unanswered question.

Cognitive bias is not permission to steer.

Loss aversion, status quo bias, framing, social proof, and present bias can shape health decisions. They also shape the communications created by sponsors and sites. Recognizing these effects should make trial design more careful, not more persuasive.

Teams should present risks and alternatives consistently, avoid selective urgency, disclose uncertainty, and test whether the order or format of information privileges one choice. A nudge that makes it harder to decline or easier to overlook burden is not decision support.

Reduce friction in both directions.

Good choice architecture makes it easy to ask a question, schedule a conversation, save information, involve a caregiver, pause, resume, or decline. It breaks complex decisions into understandable steps without hiding what comes later.

The test is simple: does the design improve the patient's ability to make the decision they would choose with adequate understanding and support? If the system only celebrates enrollment, it will eventually optimize around conversion instead of consent quality.

Measure decision quality before conversion.

Useful measures include teach-back, unresolved question rate, expectation alignment, confidence in the next step, caregiver readiness, practical feasibility, and whether the patient can name alternatives. These signals show whether movement reflects informed intent.

Behavioral science can then serve a legitimate operational purpose. It can expose where the experience creates confusion, reveal which support resolves it, and prevent premature advancement. The result may be enrollment, further consideration, or decline. All three can be good decisions.

Sources.

1. HHS OHRP, The Belmont Report
2. HHS OHRP, Informed Consent FAQs
3. HHS OHRP, Key Information and Facilitating Understanding
4. CTTI, Patient Group Engagement Recommendations

About the author

Rebecca Schelkun

Vice President, Patient Readiness

Rebecca is Vice President of Patient Readiness at Jumo Health. She combines public health expertise in epidemiology and biostatistics with experience across health equity, patient advocacy, pediatrics, rare disease, and clinical trial strategy. At Jumo, she turns protocol demands and lived experience into education, decision support, and expectation alignment patients can use.