Drug Development Stage-Gate Console

Program definition (G0) through postmarketing (G11), aligned to U.S. FDA regulations, ICH guidelines, and NIH policy

APP DEVELOPER / RIGHTS HOLDER Dong-Young Lee DY App Lounge
Regulatory citations are real; all numeric thresholds and example values are illustrative teaching data for a fictional compound (KX-101). Acceptance criteria vary by indication, modality, and program. Confirm current requirements with FDA guidance and your regulatory affairs function before use.
Items assessed 0 / 0 Gates cleared 0 / 12 Current stage G0

Tools

Key regulatory instruments referenced

CitationSubject
21 CFR Part 58Good Laboratory Practice for nonclinical laboratory studies
21 CFR Part 312Investigational New Drug application; IND safety reporting (§312.32)
21 CFR Parts 50 / 56Protection of human subjects (informed consent) / Institutional Review Boards
21 CFR Parts 210 / 211Current Good Manufacturing Practice for finished pharmaceuticals
21 CFR Part 314 / 601NDA / BLA applications and postmarketing reporting
21 CFR 201.56–201.57Physician Labeling Rule content and format
FDAAA 801 / 42 CFR Part 11ClinicalTrials.gov registration and results submission
ICH M3(R2), S1–S8, M7Nonclinical safety study design and timing
ICH E6(R3), E8(R1), E9(R1)GCP, general considerations for clinical studies, estimands
ICH Q1A(R2), Q2(R2), Q3A–D, Q8–Q12Stability, analytical validation, impurities, pharmaceutical quality
NIH GDS / DMS Policy (2023)Genomic and Data Management & Sharing plans for NIH-funded work
NIH sIRB Policy; NIH Inclusion PolicySingle IRB for multi-site studies; inclusion of women and minorities

Reading the numbers

TermMeaningFavorable direction
IC50 / EC50Concentration producing 50% target inhibition / 50% cellular effectLower
Cmax / TmaxPeak plasma concentration / time to peakContext-dependent
AUCArea under the concentration–time curve; total systemic exposureMust reach target exposure
t½Elimination half-life; drives dosing intervalLonger supports QD dosing
NOAELNo-observed-adverse-effect level in the most sensitive speciesHigher
Safety marginToxic exposure ÷ efficacious exposure≥10× commonly targeted
MRSDMaximum recommended starting dose in humansDerived, not chosen
p-value / CIProbability of result by chance / plausible range for true effectp<0.05; CI excluding null

The single most important reading rule: a small p-value with a trivial effect size is a failed drug. Always read the two together, and read the confidence interval before the p-value.

Decision rule — Every Critical (●) item must be met; Recommended (○) items must reach 80%; Informational (△) items are recorded only. A gate opens only when the preceding gate is Passed or Conditionally Passed, and a conditional pass is valid only with a written remediation item, owner, and due date.

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