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Top Recruiters in Ulcerative Colitis Phase III Study

Investigational Product: Amino Salicylate Anti-inflammatory

Therapeutic Area: Gastroenterology

Indication: Ulcerative Colitis

Study Phase: III

Sponsor: Pharmaceutical Company

Study design: Double-blind, double-dummy, randomized, multi-center, comparative Phase III clinical study

Total number of patients: 306

Sponsor’s goals: To expedite patient enrollment into the clinical trial to substantially reduce the time for the drug to enter the market.

Our solution: Eastern Europe and Russia have been proven to act as some of the top recruiting geographies in the past. We leveraged the centralized healthcare system and dense populations to tap into the patient pool and drive recruitment forward. We selected Russia, Ukraine, Latvia, and Lithuania.

Case Study Metrics

Patient Recruitment by Accell

 RussiaUkraineLatviaLithuaniaAccell TotalOverall Study Total*
Enrollment Period (months)10514141414
Active Sites136442741
Patients Enrolled122733429258306
Enrollment Rate (patients/site/month)0.942.430.610.52Accell's Average: 1.13Study Average: 0.74

* Investigational sites in Germany, Hungary, and Poland also participated in this clinical study.

Ukrainian investigational sites achieved notable patient recruitment rates due to a large number of patients meeting the protocol-specific criteria, highly organized and well-planned work of the investigational teams at sites, and close support and management by Accell’s clinical staff.

Average Number of Patients per Site per Month

  • Accell’s Countries – 1.13
  • Rest of the World – 0.23

% Patients Randomized per Country

Accell recruited 84% of total patients for this clinical trial, with only 65% of a total number of study sites. Two Russian sites were sponsor-audited, and one Lithuanian site was subject to a regulatory inspection, all without critical findings. The Sponsor was able to end recruitment earlier than planned, as the interim analysis goals were met. Fast recruitment and the reduction of the number of active sites can ultimately lead to a reduction of direct and indirect costs of clinical research, making Eastern Europe and Russia attractive regions for clinical study conduct.

Success Stories


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