Free tools for sample size, pharmacokinetics, clinical assessments, and study operations. Essential calculators for clinical research professionals.
Sample size, confidence intervals, NNT calculations
Calculate required sample size for clinical trials with adjustments for dropout rates.
Calculate CIs for means, proportions, differences, odds ratios, and relative risks
Generate block randomization sequences for clinical trials with reproducible seeds
CTCAE grading, RECIST responses, protocol deviations
Grade adverse events using CTCAE v5.0 criteria with this searchable reference tool.
Convert between ECOG and Karnofsky performance status scales
Causality assessment for adverse drug reactions using the Naranjo Algorithm
Classify and assess protocol deviations with severity ratings and reporting requirements
BSA, CrCl, QTc, and dosing calculations
Calculate BSA using multiple validated formulas for drug dosing in clinical trials.
Estimate renal function using Cockcroft-Gault, MDRD, CKD-EPI 2009, and CKD-EPI 2021 equations
Calculate IBW using Devine, Robinson, Miller, and Hamwi formulas
Calculate corrected QT interval using Bazett, Fridericia, Framingham, Hodges, and Rautaharju formulas
Calculate pediatric doses using Clarks, Youngs, Frieds rules and BSA-based methods
Visit windows, SAE timelines, study planning
Calculate protocol visit windows and validate visit dates against schedule
Calculate regulatory reporting deadlines for serious adverse events
Plan clinical trial timelines with milestone dependencies and critical path analysis
Free tools for sample size, pharmacokinetics, clinical assessments, and study operations. Essential calculators for clinical research professionals.
Sample size, confidence intervals, NNT calculations
Calculate required sample size for clinical trials with adjustments for dropout rates.
Calculate CIs for means, proportions, differences, odds ratios, and relative risks
Generate block randomization sequences for clinical trials with reproducible seeds
CTCAE grading, RECIST responses, protocol deviations
Grade adverse events using CTCAE v5.0 criteria with this searchable reference tool.
Convert between ECOG and Karnofsky performance status scales
Causality assessment for adverse drug reactions using the Naranjo Algorithm
Classify and assess protocol deviations with severity ratings and reporting requirements
BSA, CrCl, QTc, and dosing calculations
Calculate BSA using multiple validated formulas for drug dosing in clinical trials.
Estimate renal function using Cockcroft-Gault, MDRD, CKD-EPI 2009, and CKD-EPI 2021 equations
Calculate IBW using Devine, Robinson, Miller, and Hamwi formulas
Calculate corrected QT interval using Bazett, Fridericia, Framingham, Hodges, and Rautaharju formulas
Calculate pediatric doses using Clarks, Youngs, Frieds rules and BSA-based methods
Visit windows, SAE timelines, study planning
Calculate protocol visit windows and validate visit dates against schedule
Calculate regulatory reporting deadlines for serious adverse events
Plan clinical trial timelines with milestone dependencies and critical path analysis