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Lost to Follow-Up

Patients lost to follow-up represent the number one cause of clinical trial delays. Bioclinica's lost to follow-up service, Bioclinica L2FU, optimizes clinical trial success by greatly reducing the number of patients lost to follow-up and, with them, their important data. We locate lost to follow-up clinical trial patients, with the support of a specialized team and a secure online portal that facilitates the encrypted exchange of patient information.

Dedicated to reconnecting patients

locating patients lost to follow-up
searches successfully implemented
patients found

You don’t want to lose patients to follow-up. Neither do we…

The Bioclinica L2FU service includes:
  • Tiered search approach with various search tactics
  • L2FU portal with full 21 CFR Part 11 compliance
  • Information exchange in a secure online environment in real time for each search
  • Site engagement through updated patient contact information and vital status
  • Protocols to maintain contact with the FDA to implement regulatory guidance


Bioclinica addresses the critical need of finding and retaining patients:
  • Unique global presence, with global privacy regulation expertise
  • Engagement with patients, based on 25 years of recruiting, retaining and reentering patients worldwide
  • Ability to leverage data and analytics, with access to proprietary and licensed databases of millions of public records


Leverage the Bioclinica L2FU Service

Contact us for more information or to speak with us about how we can support you.

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Bioclinica is a global company specialized in utilizing data, technology and patient insights to enable more efficient trial conduct. We have the experience of successfully navigating the increasingly globalized clinical research sector where legal, regulatory, language, cultural and other factors present additional challenges.

While many patient-tracking services are private investigation firms that offer patient tracking as one of their services, Bioclinica L2FU focuses solely on finding patients who become lost to follow-up. Through personal contact and the facilitation of long-term patient data capture, Bioclinica L2FU can increase the effectiveness of patient retention efforts via continued patient/caregiver engagement through the reliable delivery of phone calls, text reminders, retention materials, reminders, newsletters and other interventions to study subjects. We know clinical research and patients, and we fully understand the patient process, giving us the Bioclinica advantage.

The Bioclinica Advantage

success rate in all countries searched
global average – 48 hour US average time to locate missing subjects in North America
countries in which we’ve successfully located patients lost to follow-up

Secure access and exchange of information ensures data privacy

The proprietary L2FU portal is a fully validated 21 CFR Part 11 compliant tool utilized to facilitate encrypted patient data exchange between the Bioclinica L2FU team, study sites and sponsors in a secure online environment.

Key portal features include:
  • Full audit trail
  • Conditional access
  • Real-time review of blinded data via reports
  • Site-based data entry of last known information
  • Retrieval of updated PII and vital status

The proprietary L2FU™ portal

Why choose Bioclinica L2FU?

Why choose Bioclinica L2FU™

  •   Achieve your long-term goal of patient retention

  •   Minimize the issue of patients lost to follow-up

  •   Help maintain clinical trial integrity, by reducing missing data

  •   Maintain study timelines by reducing delays due to patient data gaps

  •   Enhance regulatory compliance and post-study surveillance

  •   Greatly reduce clinical trial costs

  •   Provide vital status on subjects

  •   Maximize clinical trial success



Lost To Follow-Up

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