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Contract Research Reimbursed Expenses

captures investigator, travel, and other project costs billed through to clinical-research customers, which can materially increase reported revenue and cost without adding equivalent service margin.

By Lee BaileyPublished Sep 28, 2026
Research context

See what supports this page, how current it is, and where comparable or historical context is available.

Research date
Sep 28, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
Operating-model context
10 connected conceptsPart of the reviewed Contract Research Organization Economics; issuer definitions remain distinct where disclosed.
Company examples
3 reviewed companiesRelationships reflect supported examples, not a normalized cross-company KPI ranking.
  1. Pass-through dollars can move revenue faster than service activity
  2. Accounting presentation still belongs to the issuer
  3. Part of the Contract Research Organization Economics
  4. See It in Company Research
  5. Continue Research

Contract research reimbursed expenses are project costs paid or incurred by the CRO and billed through to the customer, such as investigator payments, monitoring travel, and other study-specific expenses.

The amounts can be large. Medpace recorded $1.037B of reimbursed out-of-pocket expense in 2025 against $2.530B of total revenue. IQVIA says reimbursed expenses are included in cost of revenues and include investigator payments and clinical-monitor travel.

Pass-through dollars can move revenue faster than service activity

A period with unusually high investigator or other pass-through spending can lift reported revenue even though the CRO's underlying fee economics changed much less.

IQVIA's second-quarter 2026 R&DS revenue grew 8.8% reported, while growth excluding reimbursed expenses was 6.7%. ICON likewise said second-quarter net bookings and revenue benefited from higher pass-through activity.

Accounting presentation still belongs to the issuer

ICON's clinical-trial service accounting treats the full-service obligation, including investigator and other third-party services, as one performance obligation and includes pass-through or reimbursable expenses in the transaction price and cost-based progress measure.

That means investors should not simply strip out every reimbursed dollar from GAAP revenue. The useful task is to understand how pass-through intensity affects growth, book-to-bill, direct costs, and margin interpretation.

Primary sources: Medpace 2025 Form 10-K, IQVIA second-quarter 2026 Form 10-Q, IQVIA second-quarter 2026 results, and ICON 2025 Form 20-F.

Part of the Contract Research Organization Economics

Connect clinical-research awards, cancellations, book-to-bill, backlog policy and conversion, near-term revenue visibility, and reimbursed pass-through activity across contract research organizations.

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Where this concept fits
  • Pass-through costs and underlying service growthCurrent relationship
    Reimbursed expenses can materially change reported clinical-research revenue and costs without adding equivalent service economics, so revenue excluding reimbursed expenses helps isolate the underlying service-growth read.
    CRO Reimbursed ExpensesCurrent conceptCRO Revenue ex Reimbursements
  • Awards, cancellations, and demand coverage
    Net new awards or bookings incorporate cancellations, while book-to-bill compares that net commercial inflow with current revenue. Together they show whether newly won work is replenishing the revenue base without treating gross wins as guaranteed future revenue.
    CRO Book-to-BillCRO CancellationsCRO Net New Awards
  • Backlog quality, timing, and conversion
    Backlog captures expected contracted work, inclusion policy defines which work qualifies, RPO preserves a separate accounting boundary, next-twelve-month backlog shows near-term timing, and backlog conversion indicates how quickly the booked work becomes revenue.
    CRO BacklogCRO Backlog ConversionCRO Backlog PolicyCRO Backlog vs. RPOCRO NTM Backlog

See It in Company Research

These companies are examples of how the concept is reported or discussed in public filings. Definitions can differ by issuer; these links open company research rather than a normalized metric comparison.

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Compare pass-through intensity

Compare reimbursed clinical-trial costs and how investigator payments, travel, and other pass-throughs affect reported revenue, cost, and bookings.

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