Stability Studies & Shelf-Life Protocol Engine
ICH Q1A(R2), WHO Annex 10 & ISO/IEC 17025 Cl. 7.2/7.7 real-time pull schedules, degradation kinetics and 95% confidence shelf-life estimation.
Active Stability Protocols
2
Samples Under Chamber Incubation
39 vials
Pull Timepoints Due This Week
2
Overdue Pulls / Out-of-Window
0
Select Study Protocol:
All pull dates automatically locked to chamber placement timestamp per 21 CFR Part 11.
Study Protocol Specification
Active
Protocol Code
STAB-2025-004
Product / Measurand
Paracetamol 500mg Tablets BP
Lot / Batch Number
LOT-PCM-202501
Dosage Form / Matrix
Solid Oral Dosage (Tablets)
Container Closure System
Alu-Alu Blister Pack in Unit Carton
Chamber & Conditions
STAB-CHAMBER-01 (25°C/60% RH)
Chamber Placement Date
2025-11-13 09:33 UTC
Assay Specification Limits
90.0% - 105.0%
ICH Q1E Kinetics & Shelf-Life Extrapolation
Expiry: 27 MonthsDegradation Rate (k)
-0.387 %/mo
Linear Fit (R²)
0.9997
Residual Std (s_y/x)
0.032%
Accreditation Verdict: ICH Q1E Lower 95% confidence curve intersects specification (90.0%) at 27 months. Recommended shelf-life: 27 months.
Pull Schedule & Testing Matrix per ICH Q1A(R2)
8 Timepoints| Timepoint | Target Date | Tolerance Window | Status | Pulled At / By | Vials | Assay (%) | Total Impurities (%) | pH | Appearance | Action |
|---|---|---|---|---|---|---|---|---|---|---|
|
T0 (Initial)
Month 0
|
2025-11-13 | 11/13 to 11/13 (±0 d) | Pulled |
Dr. Rajesh Varma
2025-11-13
|
6 | 100.4% | 0.08% | 6.2 | White circular tablets, biconvex, smooth | |
|
3 Months
Month 3
|
2026-02-13 | 02/11 to 02/15 (±2 d) | Pulled |
Dr. Rajesh Varma
2026-02-14
|
6 | 99.2% | 0.12% | 6.1 | Conforms to initial | |
|
6 Months
Month 6
|
2026-05-13 | 05/08 to 05/18 (±5 d) | Pulled |
Dr. Rajesh Varma
2026-05-13
|
6 | 98.1% | 0.18% | 6.1 | Conforms to initial | |
|
9 Months
Month 9
|
2026-08-13 | 08/08 to 08/18 (±5 d) | Pulled |
Dr. Rajesh Varma
2026-08-12
|
6 | 96.9% | 0.24% | 6.0 | Conforms to initial | |
|
12 Months
Month 12
|
2026-11-13 | 11/08 to 11/18 (±5 d) | Due for Pull | - | - | - | - | - | - | |
|
18 Months
Month 18
|
2027-05-13 | 05/03 to 05/23 (±10 d) | Upcoming | - | - | - | - | - | - | |
|
24 Months
Month 24
|
2027-11-13 | 11/03 to 11/23 (±10 d) | Upcoming | - | - | - | - | - | - | |
|
36 Months
Month 36
|
2028-11-13 | 11/03 to 11/23 (±10 d) | Upcoming | - | - | - | - | - | - |