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Trial Result Prespecified Estimand Label Tool

Audit supplied estimand labels and metadata without deriving an estimand.

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Description

Compare result labels with prespecified estimand metadata.

Clinical research distinguishes supplied protocol metadata, participant/event records, allocation bookkeeping and an analysis target. A local count, permission flag or denominator choice can help reconcile records without establishing valid consent, randomization, regulatory compliance or a reliable treatment-effect estimate.

Compare result labels with prespecified estimand metadata.

When to use this tool

Use Trial Result Prespecified Estimand Label when checking the stated clinical-research record, allocation, timing, analysis or evidence-basis convention.

How to use the tool and how it works

  1. Enter resultLabel, prespecifiedLabels, population, prespecifiedPopulation, intercurrentStrategy, expectedStrategy. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read labelListed, populationMatches, strategyMatches. Inspect labelListed, populationMatches, strategyMatches before interpreting the associated values.

Compare result labels with prespecified estimand metadata. labelListed checks supplied vocabulary membership, populationMatches compares population and strategyMatches compares the intercurrent-event strategy label.1

An estimand specifies the treatment-effect question, including intercurrent-event handling. Denominator choices and missing-data assumptions must align with that question.2

Input fieldMeaning and unitsAccepted input
resultLabelResult LabelRequired. Text; maximum UTF-16 length 8192.
prespecifiedLabelsPrespecified LabelsRequired. Array of text; maximum UTF-16 length 8192; maximum items 256.
populationPopulationRequired. Text; maximum UTF-16 length 8192.
prespecifiedPopulationPrespecified PopulationRequired. Text; maximum UTF-16 length 8192.
intercurrentStrategyIntercurrent StrategyRequired. Text; maximum UTF-16 length 8192.
expectedStrategyExpected StrategyRequired. Text; maximum UTF-16 length 8192.
Output fieldInterpretationReturned shape
labelListedLabel ListedRequired. Boolean.
populationMatchesPopulation MatchesRequired. Boolean.
strategyMatchesLiteral intercurrent-strategy label agreement; a complete estimand has additional attributes.Required. Boolean.
json
{
  "input": {
    "resultLabel": "E1",
    "prespecifiedLabels": [
      "E1"
    ],
    "population": "P1",
    "prespecifiedPopulation": "P1",
    "intercurrentStrategy": "strategy-A",
    "expectedStrategy": "strategy-A"
  },
  "output": {
    "labelListed": true,
    "populationMatches": true,
    "strategyMatches": true
  }
}

Limitations and assumptions

  • Matching labels do not define or verify a full estimand, prespecification, statistical method or valid clinical inference.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.

Alternative or Complementary methods

Use the complete approved protocol, authenticated source records and qualified clinical/statistical oversight for actual trial design, conduct and interpretation.

References

  1. Calculation and input contract: clinical-trials/trial-result-prespecified-estimand-label — tool.io

  2. ICH E9(R1): estimands and sensitivity analysis — ICH

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