PProva
Prova CO Defensibility Council

Most CRO change orderscontain contestable spend.Prova reviews yours line-by-line.

Four specialists. Three frontier models. One Chair. A 1-page CRO-ready rebuttal letter, a defensible audit trail — same day, $250.

Upload your own documents
Live · sample COCO scanned$340,000
Zero-retention API agreements Per-trial document isolation No client data trains models

The Council Floor

Four specialists. Already convened.

The Chair

Listening. Will speak last, after the four specialists.

Contract · PAID

Is this already paid for?

The Overlap Auditor — MSA, SOW, prior COs

Settled
ClaudeGPTGemini

▸ Watching for §4.2(b) overlap signatures.

▸ Line 7 overlaps with prior CO #3 §4.2(b)

▸ Acceptance clause not satisfied — line 4

▸ Re-do scope rebadged as new work

▸ MSA §6.2 deliverable spec missing

Nowln 1 — PM uplift
—at stake

Rates · PRICED

Is this priced fairly?

The Rate Auditor — CRA bands, prior pricing, drift

Settled
ClaudeGPTGemini

▸ Comparing against the $135–$215 CRA band.

▸ CRA hours 31% above benchmark high

▸ PM retainer +18% vs. prior CO

▸ Senior CRA rate $245/hr — $30 above ceiling

▸ Hours not stated — request unit basis

Nowln 1 — PM uplift
—at stake

Deliverables · DONE

Will I know if it was done?

The Acceptance Auditor — rejectable spec required

Settled
ClaudeGPTGemini

▸ Scanning for “as-needed,” “support,” “TBD.”

▸ “ad-hoc support” — non-rejectable

▸ Bundled scope, no acceptance test

▸ “as needed” language flagged

▸ No measurable artifact specified

Nowln 1 — PM uplift
—at stake

Precedent · FAMILIAR

Does this look familiar?

The Pattern Analyst — 8 known inflation archetypes

Settled
ClaudeGPTGemini

▸ Pattern library: 8 contestable archetypes.

▸ Pattern fit: monitoring expansion

▸ Pattern fit: rebadged scope

▸ Anomaly vs. peer Phase II median

▸ Pattern fit: unbundled deliverables

Nowln 1 — PM uplift
—at stake

Step 1 — Convene the Council

Add the change order and supporting documents.

Each upload feeds the Council above. You'll watch the four specialists work in real time on the next screen.

Prior approved COs

Optional · sharpens rate-drift detection across this CRO's prior pricing.

Add files

Context for the Council (optional)

The four specialists will read this before evaluating. Use it to flag prior history, known site issues, or anything they can't see in the documents.

Documents processed under zero-retention API agreements.

Is this already paid for?

The Overlap Auditor — MSA, SOW, prior COs

Is this priced fairly?

The Rate Auditor — CRA bands + drift

Will I know if it was done?

The Acceptance Auditor — rejectable spec

Does this look familiar?

The Pattern Analyst — 8 inflation archetypes

What you get back

A 1-page rebuttal letter.
Send-as-is. Same day.

Below is the verdict for the sample CO — Recovery Summary and the opening of the rebuttal letter your CRO would receive.

Recovery Summary

$0 recommended ask

Total CO value

$342,500

Contestable range

$92K–$140K

High-confidence

$78,000

Recommended ask

$110,000

Triangulated across Claude · GPT · Gemini. Specialists agreed on 11 of 14 line items; 3 lines were split — those become high-leverage negotiation targets in the audit transcript.

June 22, 2026

To: Vance Clinical
From: Lumen Bio
Re: Change Order #4 — LMN-203 Protocol Amendment 2

Thank you for the change order dated above. After a line-by-line review of CO #4 against our master service agreement, original SOW, and prior approved change orders, we have identified items that require revision before we can approve.

  1. 1. Project management upliftREDUCE

    We request a reduction. The MSA bundles project management at the Initial Term rate (§5.3) and disallows separate “Senior PM” billing for trials under 30 sites.

    Requested adjustment: $52,000

  2. 2. Site monitoring expansionREDUCE

    We request a reduction to the prior CO #2 unit rate of $2,850 per visit…

Pricing

$250 per CO

Trial subscription: $1,500/mo unlimited reviews on a single trial. Portfolio pricing available.

Guarantee

$5K identified — or it's free.

Typical recovery: $10K–$300K per change order.

Security

Zero-retention.

Per-trial isolation. No client data trains any external model. SOC2 Type II on the roadmap.