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Trial Cost Site Fixed Per Participant Split Tool

Calculate trial cost site fixed per participant split from explicit caller-supplied inputs.

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Description

Allocate site fixed, participant-variable and central costs.

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.

Allocate site fixed, participant-variable and central costs.

When to use this tool

Use Trial Cost Site Fixed Per Participant Split 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 siteFixed, participantVariable, participants, sharedCentral, siteShare. 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 fixedAllocated, variableTotal, total, perParticipant. Use the output convention below.

Allocate site fixed, participant-variable and central costs. Require participants >= 1, nonnegative costs and siteShare in [0,1]; fixedAllocated = siteFixed+central*share, variableTotal = participants*variable, total adds them, perParticipant divides fixed plus variable.1

Input fieldMeaning and unitsAccepted input
siteFixedSite FixedRequired. Finite number; minimum 0.
participantVariableParticipant VariableRequired. Finite number; minimum 0.
participantsParticipantsRequired. Safe integer; minimum 1.
sharedCentralShared CentralRequired. Finite number; minimum 0.
siteShareSite ShareRequired. Finite number; minimum 0; maximum 1.
Output fieldInterpretationReturned shape
fixedAllocatedFixed AllocatedRequired. Finite number.
variableTotalVariable TotalRequired. Finite number.
totalTotalRequired. Finite number.
perParticipantPer ParticipantRequired. Finite number.
json
{
  "input": {
    "siteFixed": 1000,
    "participantVariable": 50,
    "participants": 20,
    "sharedCentral": 500,
    "siteShare": 0.2
  },
  "output": {
    "fixedAllocated": 1100,
    "variableTotal": 1000,
    "total": 2100,
    "perParticipant": 105
  }
}

Limitations and assumptions

  • Costs share currency and period; budget assumptions do not establish actual reimbursement, allowable costs or contractual rights.
  • 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.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

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-cost-site-fixed-per-participant-split — tool.io

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