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Table 3 Summary of the percentage increase in total FTE-years, FTE-years for statistics, data management and trial management, and non-staff costs between the adaptive over the non-adaptive version of each scenario

From: Costs and staffing resource requirements for adaptive clinical trials: quantitative and qualitative results from the Costing Adaptive Trials project

Scenario

% increase in total FTE-years, median (range)

% increase in statistics FTE-years, median (range)

% increase in data management FTE-years, median (range)

% increase in trial management FTE-years, median (range)

% increase in non-staff costs, median (range)

1. Group-sequential design (n=6)

3.9% (2.7%, 27.7%)

9.4% (2.3%, 34.2%)

4.8% (3.2%, 28.0%)

2.4% (2.0%, 29.9%)

0.8% (0.0%, 6.3%)

2. Phase 2b dose-response (n=6)

2.2% (0.7%, 17.5%)

13.4% (4.6%, 21.9%)

0.0% (0.0%, 6.6%)

0.0% (0.0%, 20.8%)

4.2% (0.0%, 8.2%)

3. Phase 3 MAMS (n=5)

3.0% (1.3%, 7.9%)

16.7% (4.7%, 26.0%)

9.6% (0.0%, 19.8%)

0.0% (0.0%, 14.2%)

0.8% (0.0%, 5.3%)

4. Umbrella study (n=5)

3.0% (1.0%, 34.2%)

11.1% (5.0%, 27.6%)

6.4% (0.0%, 25.0%)

0.0% (0.0%, 41.7%)

0.0% (0.0%, 8.3%)

5. Sample size re-estimation (n=5)

26.5% (0.8%, 38.9%)

36.8% (2.9%, 56.3%)

28.75% (2.9%, 39.3%)

22.2% (0.0%, 34.6%)

13.5% (0.8%, 19.0%)

  1. FTE full-time equivalent, MAMS multi-arm multi-stage