InsulinHumanPremixQualityChecker

Insulin Human Premix

antivirals API assay biologics biosimilars endotoxins essential medicines fixed-dose combinations
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Insulin Human Premix Quality Checker — Biologic Drug (NPH+Soluble Mix) (Ph. Eur., USP)

ℹ️ The utility checks fraction ratio, resuspendability, particle size, proinsulin, sterility.
ℹ️ Does not use machine learning — rule-based logic only.
⚠️ CRITICAL! Ratio 30/70 (or other), Resuspendability, Proinsulin ≤10 ppm, Sterility!

Usage:
InsulinHumanPremixQualityChecker.exe → demo mode
InsulinHumanPremixQualityChecker.exe input.csv output.json → evaluate data

Input format:
BatchNumber,Total_Potency_IU_per_ml,Short_Acting_Percent,Intermediate_Acting_Percent,pH_Value,Zinc_Content_mcgPerMl,Protamine_Content_mcgPerMl,Proinsulin_Content_ppm,Related_Proteins_Percent,High_Molecular_Weight_Proteins_Percent,Particle_Size_D50_um,Resuspension_Time_Min,SterilityTest,Endotoxin_EU_ml,Appearance_After_Resuspension

Example:
INS-MIX-2026-001,100.0,30.0,70.0,7.2,40.0,450.0,3.0,0.4,0.1,4.5,1.0,0,0.02,0

— WHY IS THIS NEEDED?
Human Insulin Premix (e.g., 30/70) — suspension containing soluble insulin (short-acting) and isophane insulin (intermediate-acting):
• Fraction Ratio: Critical for glycemic profile. Error in ratio leads to hypoglycemia or hyperglycemia.
• Resuspendability: Patient must easily obtain uniform white suspension by shaking. Poor resuspendability leads to inaccurate dosing.
• Particle Size: Insulin-protamine crystals must be small and uniform for accurate syringe drawing.
• Protamine: Required for NPH (isophane) complex formation. Amount strictly regulated.
• Proinsulin and Aggregates: Immunogenicity risk.
• Sterility and Endotoxins: Absolutely mandatory.
⚠️ CRITICAL:
• Total Potency: 95–105% of label claim
• Short/Intermediate Ratio: within ±5% of nominal (e.g., 30±5%)
• Proinsulin: ≤ 10 ppm
• Aggregates (HMW): ≤ 0.5%
• Particle Size (D50): ≤ 10 µm
• Resuspension Time: ≤ 2 min
• Appearance: Uniform white suspension without clumps
• Sterility: No growth
• Endotoxins: ≤ 0.5 EU/mL
⚠️ Note: Utility focuses on physical characteristics of suspension (particle size, resuspension time) distinguishing premixes from solutions. Incorrect fraction ratio or poor resuspendability are most common causes of therapeutic failure with premixes. Protamine control important for crystal phase stability.

input.csv

BatchNumber,Total_Potency_IU_per_ml,Short_Acting_Percent,Intermediate_Acting_Percent,pH_Value,Zinc_Content_mcgPerMl,Protamine_Content_mcgPerMl,Proinsulin_Content_ppm,Related_Proteins_Percent,High_Molecular_Weight_Proteins_Percent,Particle_Size_D50_um,Resuspension_Time_Min,SterilityTest,Endotoxin_EU_ml,Appearance_After_Resuspension
INS-MIX-2026-001,100.0,30.0,70.0,7.2,40.0,450.0,3.0,0.4,0.1,4.5,1.0,0,0.02,0

URS & FS — user requirements and functional specification

This document defines user requirements and functional specification for the quality-control utility. It supports deployment discussion, IQ/OQ preparation and QC workflow integration.

Utility: InsulinHumanPremixQualityCheckerAPI / object: Insulin Human PremixCategory: Global API

1. Scope

The Insulin Human Premix Quality Checker utility is used for Insulin Human Premix. The actual input.csv is the source of truth for the input structure; control criteria are defined by the executable and the domain description.

The utility does not use machine learning; decisions are produced by deterministic rules.

Categories: Global API, Global API expansion

Tags: antivirals, API, assay, biologics, biosimilars, endotoxins, essential medicines, fixed-dose combinations, generics, global market, impurities, injectables, market map, oncology, sterility

2. Execution modes

InsulinHumanPremixQualityChecker.exe                            → demo mode
InsulinHumanPremixQualityChecker.exe input.csv output.json      → evaluate data

3. Key controlled areas

  • assay / content
  • purity and impurities
  • microbiology and pathogens
  • pH and physicochemical parameters

4. Domain limits and critical parameters

  • ⚠️ CRITICAL! Ratio 30/70 (or other), Resuspendability, Proinsulin ≤10 ppm, Sterility!
  • ⚠️ CRITICAL:
  • Total Potency: 95–105% of label claim
  • Short/Intermediate Ratio: within ±5% of nominal (e.g., 30±5%)
  • Proinsulin: ≤ 10 ppm
  • Aggregates (HMW): ≤ 0.5%
  • Particle Size (D50): ≤ 10 µm
  • Resuspension Time: ≤ 2 min
  • Appearance: Uniform white suspension without clumps
  • Sterility: No growth
  • Endotoxins: ≤ 0.5 EU/mL
  • ⚠️ Note: Utility focuses on physical characteristics of suspension (particle size, resuspension time) distinguishing premixes from solutions. Incorrect fraction ratio or poor resuspendability are most common causes of therapeutic failure with premixes. Protamine control important for crystal phase stability.
Limits stated in the description must be verified against the current approved specification, pharmacopoeial monograph and registration dossier before production use.

5. URS — user requirements

IDRequirementCriticalityAcceptance criterion
URS-001The system shall accept an input.csv file for Insulin Human Premix with the exact columns listed in the “Input data contract” section.HighA file with the correct header is processed without manual editing; missing mandatory columns produce FAIL/import error.
URS-002The system shall support execution without arguments in demo mode and execution with input.csv output.json for user data.MediumBoth execution scenarios produce a predictable result or clear diagnostic error.
URS-003The system shall perform rule-based controls for: assay / content, purity and impurities, microbiology and pathogens, pH and physicochemical parameters.HighEach controlled parameter receives a status and message; the result does not depend on hidden Excel formulas or ML.
URS-004The system shall preserve traceability between batch/lot, source values, applied rules and final verdict.HighOutput includes batch identifier, source values, parameter statuses and critical findings.
URS-005The system shall generate machine-readable output.json for LIMS/ELN/MES, batch record and QA/QC review.HighJSON contains overall status, check array, warnings, failures and source-file reference.
URS-006The system shall support use in the client validation package: URS/FS, IQ/OQ preparation, installation and operational scenario checks.HighThe document, test scenarios and reproducible CSV/JSON flow are suitable for audit and internal approval.
URS-007The system shall clearly separate technical data errors from specification nonconformities.MediumSchema/type errors are not mixed with pharmacopoeial deviations and are reported separately.

6. input.csv data contract

The source of truth for the input schema is the actual input.csv header. Column names are technical identifiers and are not translated.

#ColumnTypeUnitDescriptionSampleControl rule
1BatchNumberidentifieras specifiedBatch NumberINS-MIX-2026-001mandatory field; used for batch/lot traceability
2Total_Potency_IU_per_mldecimalIU/mlTotal Potency IU per ml100.0mandatory numeric value; rule comparison is performed by the utility
3Short_Acting_Percentdecimal%Short Acting %30.0mandatory numeric value; rule comparison is performed by the utility
4Intermediate_Acting_Percentdecimal%Intermediate Acting %70.0mandatory numeric value; rule comparison is performed by the utility
5pH_ValuedecimalpHp H Value7.2mandatory numeric value; rule comparison is performed by the utility
6Zinc_Content_mcgPerMldecimalas specifiedZinc Content mcg per Ml40.0numeric value; compared with assay/purity limit from specification or method
7Protamine_Content_mcgPerMldecimalas specifiedProtamine Content mcg per Ml450.0numeric value; compared with assay/purity limit from specification or method
8Proinsulin_Content_ppmdecimalppmProinsulin Content ppm3.0numeric value; compared with assay/purity limit from specification or method
9Related_Proteins_Percentdecimal%Related Proteins %0.4numeric value; compared with individual or total impurity limit
10High_Molecular_Weight_Proteins_Percentdecimal%High Molecular Weight Proteins %0.1mandatory numeric value; rule comparison is performed by the utility
11Particle_Size_D50_umdecimalµmParticle Size D50 um4.5mandatory numeric value; rule comparison is performed by the utility
12Resuspension_Time_MindecimalminResuspension Time Min1.0mandatory numeric value; rule comparison is performed by the utility
13SterilityTestboolean / flag0/1Sterility Test0valid flag required; prohibited organisms and growth are normally expected as 0 / absent
14Endotoxin_EU_mldecimalas specifiedEndotoxin EU ml0.02numeric value; critical safety attribute compared with endotoxin limit
15Appearance_After_Resuspensiondecimalas specifiedAppearance After Resuspension0mandatory numeric value; rule comparison is performed by the utility

CSV example

BatchNumber,Total_Potency_IU_per_ml,Short_Acting_Percent,Intermediate_Acting_Percent,pH_Value,Zinc_Content_mcgPerMl,Protamine_Content_mcgPerMl,Proinsulin_Content_ppm,Related_Proteins_Percent,High_Molecular_Weight_Proteins_Percent,Particle_Size_D50_um,Resuspension_Time_Min,SterilityTest,Endotoxin_EU_ml,Appearance_After_Resuspension
INS-MIX-2026-001,100.0,30.0,70.0,7.2,40.0,450.0,3.0,0.4,0.1,4.5,1.0,0,0.02,0

7. FS — functional specification

IDFunctionImplementation description
FS-001CLI entry pointThe executable InsulinHumanPremixQualityChecker.exe supports demo mode and input.csv output.json processing mode.
FS-002CSV parserThe import module reads CSV, validates header, column presence/order, value count and encoding. Decimal values are expected with a dot separator.
FS-003Field conversionEach column is converted to the expected type: identifier, text, decimal number, date/time or boolean flag.
FS-004Domain rule engineFor Insulin Human Premix, explicit rules are applied: range, minimum, maximum, absence of prohibited flag, data completeness or calculation-based check.
FS-005Criticality handlingCritical violations produce FAIL; non-critical deviations and incomplete data produce WARNING; full conformance produces PASS.
FS-006JSON writeroutput.json stores overall status, per-parameter results, source values, warnings, failures and diagnostic messages.
FS-007Integration contractThe CSV → JSON format is stable for invocation from LIMS/ELN/MES, scheduled task or wrapper service.
FS-008Error handlingSchema error, missing file, non-numeric value or JSON write failure returns diagnosable error without silent PASS.

8. output.json contract

The output file must be suitable for automated processing, audit review and correlation with the source input.csv row.

{
  "utility": "InsulinHumanPremixQualityChecker",
  "api": "Insulin Human Premix",
  "batchNumber": "INS-MIX-2026-001",
  "overallStatus": "PASS|WARNING|FAIL",
  "checkedAtUtc": "2026-05-18T00:00:00Z",
  "checks": [
    {
      "parameter": "BatchNumber",
      "value": "INS-MIX-2026-001",
      "unit": "as specified",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Total_Potency_IU_per_ml",
      "value": "100.0",
      "unit": "IU/ml",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Short_Acting_Percent",
      "value": "30.0",
      "unit": "%",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Intermediate_Acting_Percent",
      "value": "70.0",
      "unit": "%",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "pH_Value",
      "value": "7.2",
      "unit": "pH",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Zinc_Content_mcgPerMl",
      "value": "40.0",
      "unit": "as specified",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Protamine_Content_mcgPerMl",
      "value": "450.0",
      "unit": "as specified",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    },
    {
      "parameter": "Proinsulin_Content_ppm",
      "value": "3.0",
      "unit": "ppm",
      "status": "PASS|WARNING|FAIL",
      "message": "Rule-based check result"
    }
  ],
  "criticalFindings": [],
  "sourceFile": "input.csv"
}

9. OQ/PQ test scenarios

IDScenarioExpected result
TC-001Valid CSV with expected header and sample rowAll rows are processed; output contains PASS/WARNING/FAIL and parameter-level detail.
TC-002A mandatory input.csv column is missingImport is rejected or the row receives FAIL with schema reference.
TC-003A numeric field contains text or a blank valueType conversion error is recorded; the result is not hidden as PASS.
TC-004A parameter is outside specification or critical limitCritical parameters produce FAIL; non-critical deviations produce WARNING according to the rule.
TC-005Positive pathogen/microbiological flag or microbiological limit excursionCritical FAIL is produced with the offending parameter.

10. QA/QC, CSV and change control

  • Before production use, the client records executable version, checksum, specification/monograph version, test CSV, expected JSON and IQ/OQ results.
  • Column names must not be changed without updating the validator and test scenarios.
  • The source CSV, output.json and utility version should be stored together as an evidence package.
  • Any change in control rules must go through change control and repeated OQ scenario verification.

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