Case study
Gulf Coast Research Institute (GCRI)
Modernizing visit window tracking & scheduling with NexaScheduler.
Overview
Gulf Coast Research Institute (GCRI), a high-volume clinical research site in Tampa, Florida, participated in a Phase 3 Type 2 Diabetes study involving 14 visits over 52 weeks, strict ± visit windows, fasting requirements, and multiple lab and imaging assessments.
Before NexaScheduler, GCRI relied on Excel spreadsheets and manual calculations to track visit windows. This created operational risk, scheduling inefficiencies, and limited visibility into patient flow trends.
GCRI implemented NexaScheduler to automate visit window management, streamline scheduling, and uncover actionable insights that improved both retention and recruitment.
The challenge
Excel-based visit window tracking was error-prone and time-consuming
Prior to NexaScheduler, GCRI coordinators used:
- Excel trackers
- Color-coded cells
- Manually calculated ± windows
- Shared Outlook calendars
- Paper notes and whiteboards
This led to:
- Frequent near-misses on visit windows
- Inconsistent calculations between coordinators
- Difficulty forecasting staff availability
- No visibility into patient flow trends
- Unpredictable scheduling gaps that hurt recruitment
- Limited ability to identify dropout patterns
For a long-duration metabolic study, coordinators spent:
- ~40 minutes per patient per visit recalculating windows
- 2–3 hours weekly updating spreadsheets
- Additional time resolving scheduling conflicts and rebooking fasting visits
The site director described the process as “a constant scramble.”
The NexaScheduler solution
NexaScheduler replaced GCRI’s manual spreadsheets with:
- Automated visit window calculation
- Real-time scheduling alerts
- Patient flow dashboards
- Trend & dropout analytics
- Recruitment & capacity forecasting
Key capabilities deployed:
- Automated visit window engine — NexaScheduler instantly calculated target visit dates, earliest/latest allowable windows, adjusted windows after reschedules, and protocol-specific rules (fasting, labs, imaging, ± windows). No more manual math or spreadsheet updates.
- Smart scheduling — Coordinators could see patients due, at risk, or late; days with overbooked or underutilized capacity; and visits requiring specific equipment or fasting windows.
- Trend & dropout reporting — NexaScheduler revealed patterns such as dropouts clustering around Week 12, patients with repeated fasting visit reschedules, staff bottlenecks on imaging days, and window misses tied to specific coordinators’ workloads.
- Recruitment optimization — By analyzing scheduling gaps and dropout trends, GCRI could predict when new patients could be added, identify high-risk dropout windows, smooth out scheduling to avoid idle capacity, and improve recruitment pacing.
Implementation
Timeline: 7 days
- Days 1–2: Import of Excel trackers + protocol window configuration
- Days 3–4: Scheduling rule setup + dashboard customization
- Days 5–6: Coordinator training + workflow alignment
- Day 7: Go-live
No system replacement was required — NexaScheduler integrated seamlessly into existing workflows.
Results
A complete transformation in visit window management
After implementing NexaScheduler, GCRI achieved:
- 100% elimination of manual window calculations
- 82% reduction in scheduling conflicts
- 2 hours saved per coordinator per week
- Zero window deviations for the remainder of the study
- Clear visibility into dropout patterns, enabling proactive retention
- Recruitment pacing improved by 33% due to better capacity forecasting
Coordinator feedback
“We used to spend hours recalculating windows and updating spreadsheets. NexaScheduler handles everything instantly. It’s a completely different workflow.”
PI feedback
“For the first time, we could see exactly where patients were dropping off and why. It changed how we scheduled, how we staffed, and how we recruited.”
Conclusion
By replacing Excel-based tracking with NexaScheduler, GCRI gained:
- Automated visit window management
- Predictive scheduling insights
- Improved patient retention
- More efficient recruitment
- A calmer, more organized operational environment
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