When you absolutely have to recruit patients on time

Home Rescue Studies

Why clinical trials fail

The majority of clinical studies fall behind schedule, and in some cases, require clinical study rescue. Most common reasons for clinical trials rescue are:

Lack of patient recruitment or patient non-adherence

Unnecessarily complex clinical study protocols or stringent inclusion/exclusion criteria

Changed availability of Sponsor’s internal resources

Lack of attention or resources of the current CRO

Weak project team communication

At Accell, we believe in immediate response to a clinical trial rescue situation and have resources that are needed to accomplish just that. We operate under the highest standard of business ethics and our goal is to deliver timely results and friendly service to each client.

Our Services


We work with our clients to assess the current situation in the clinical study and recommend the optimal pathway to possible clinical study rescue. Our services include:

Review and adjust patient recruitment and retention strategy; assess the need for additional investigator training and education for increased patient compliance

Medical review of the existing clinical trial protocol

Feasibility of additional sites in existing locations

Feasibility of addition of new countries and analysis of risks and benefits of expanding clinical trial geography

Functional outsourcing of clinical operational staff to join your existing team, when you need it, where you need it

Oversight and management of existing CRO vendor and review of existing project management practices for increased effectiveness

we simply outperform

Proven past performance is the best indicator of future success. See below enrollment in our recent clinical studies.

Cardiovascular and Endocrinology

  • Accell – 2.1 pts/site/month
  • Rest of the World – 0.3 pts/site/month

Breast Cancer

  • Accell – 0.9 pts/site/month
  • Rest of the World – 0.3 pts/site/month


  • Accell – 1 pts/site/month
  • Rest of the World – 0.4 pts/site/month


  • Accell – 0.97 pts/site/month
  • Rest of the World – 0.32 pts/site/month

Ulcerative Colitis

  • Accell – 0.7 pts/site/month
  • Rest of the World – 0.3 pts/site/month

Head & Neck Cancer

  • Accell – 0.6 pts/site/month
  • Rest of the World – 0.23 pts/site/month


Outperforming in an Onco-Hematology Clinical Trial

Meticulously selected by Accell, Russian sites twice outperformed enrollment in Western European sites and 6 times in US sites. Read more

Inventive operational strategy for a cardiology rescue study

Phase III clinical trial in cardiology for a global top-10 pharmaceutical company. Accell recruited 130% of promised patients before the deadline for patient recruitment. Read more

Oncology Phase III Rescue Study

After 16 months of slow recruitment, Sponsor addressed Accell to add an emergency country to rescue the study. Accell recruited 21.6% of total patients in just 6 months. Read more

Top Recruiters in Ulcerative Colitis Phase III Study

Accell recruited 84% of total patients, with only 65% of a total number of study sites, and made sure the Sponsor ended recruitment earlier than planned and faster entered the market. Read more

This Is Your Team. We Make Clinical Trials Happen.


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