Integrated CRO + Site Execution in a Multi-Model Surgical Pain Trial

Blinded Phase 3 post-surgical pain study of an investigational implant placed intraoperatively at the surgical site.

  • Adults undergoing one of the protocol-defined open soft-tissue surgeries.
  • Post-surgical pain setting with safety and pharmacokinetic evaluation following surgery.
  • Subjects able to participate in protocol-defined postoperative assessments and follow-up.

97 / 100

Subjects enrolled by ERG sites

9

Total study sites

3 of 4

Non-ERG sites enrolled zero subjects

Product / Route

Administered by intraoperative placement into the surgical site before closure.

Five Surgery Models

  • Open ventral hernia repair
  • Abdominoplasty
  • Open abdominal hysterectomy
  • Laparoscopic-assisted colectomy
  • Reduction mammoplasty

ERG Site Network

Five ERG sites: Lotus Pasadena, Endeavor Clinical Trials, First Surgical Hospital, Memorial Hermann, and Midwest Clinical Research Center.

Execution Challenges

  • Multiple surgery models created variable recruitment pathways, surgeon workflows, perioperative logistics, and postoperative recovery patterns.
  • Final surgical model, colectomy, was identified as difficult to enroll.
  • Post-surgical pain endpoints required consistent patient-reported assessments, rescue medication discipline, and protocol adherence across sites.
  • Site performance was highly concentrated: most non-ERG sites did not enroll subjects.

Lotus-ERG Differentiators

  • Lotus served as managing CRO and implemented PRM as an essential study execution strategy.
  • ERG surgical pain recruitment infrastructure and experienced study teams carried enrollment in a complex surgical study.
  • PRM supported consistent study conduct and assessment behaviors in a setting vulnerable to placebo-related variability.

Takeaway

For complex surgical pain studies, Lotus CRO oversight with PRM and ERG surgical sites can execute with proven performance.

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