- Before
- Tracks nine transfers by hand, and hears about a gap when the receiving site asks.
- Now
- Sees every transfer’s readiness and every gap waiting for her each morning, and decides each one with the evidence beside it.
One transfer, from new documents to a signed protocol
Veltrimab drug substance is moving from Process Development in Cambridge, MA to Plant 3 in Leiden — 200 L to 2,000 L single-use — with engineering run 1 booked for Nov 16. A new hold-time study has just arrived. Here is what happens next, screen by screen, in the working solution.
- 0107:40
Every transfer, on one network map
Lena Ortiz · Tech transfer lead, MS&TLena opens the solution to nine transfers in motion across four of her company’s plants and three CDMOs: 45 open gaps, 39 of them blocking a start, and 23 waiting for her decision. The departures board lists the next milestones, and the first item under Needs you is new.
“3 new documents for Veltrimab → Leiden — Hold-time study arrived Oct 6 · run the gap check.”
- 02Opened
TT-2611, at 81 % ready
Lena Ortiz · Tech transfer leadThe transfer sits in the Protocol phase. Against the Biologics drug substance v4 checklist, 32 items are found, 7 partial, 5 missing and 2 not applicable, backed by 43 source documents. A banner lists what has arrived since the last check on Oct 2: the hold-time study DR-VLT-0451, Leiden’s equipment list rev 2 and the buffer hold-time study BHT-VLT-04.
- 03One click
“Run gap check” — five agents, in view
The agentsThe Document reader reads the three new documents, bringing the package to 46. The Parameter extractor re-reads 212 parameters and flags one: the neutralised pool hold, where two sources disagree, 48 h against 72 h. The Equipment fit analyst recomputes Leiden against Cambridge, the Checklist checker runs all 46 items, and the Gap writer writes up what changed.
Each step shows what it found and how long it took — 1.9 s to read the new documents, 2.0 s to re-read the parameters.
- 0411 seconds later
One new gap, on the item that changed
Checklist checkerReadiness drops from 81 % to 78 %. Checklist item G1, In-process hold times — “Supported hold times for every intermediate” — is now marked two sources disagree. The new gap, G-2611-03, says where each value came from and that the study notes the batch record has not yet been updated.
“1 new gap written for you to decide.”
- 05Decided
Two passages side by side, and a person chooses
Lena Ortiz · Tech transfer leadThe batch record MBR-VLT-DS-200 v5.2 says to hold the neutralised pool at 2–8 °C for not more than 48 h. The new study supports 72 h, with HMW up by only 0.1 %. Lena picks the recommended option — 48 h as the operating limit, 72 h as the proven limit — and her reason goes on the audit trail with the decision.
“The Parameter extractor found two values for this limit. Agents never pick one — you decide which transfers.”
- 06Next
Cambridge against Leiden, aspect by aspect
Equipment fit analystTen aspects compared: 4 fit, 3 need an adjusted setting, 3 are gaps. Matching 20 W/m³ in the 2,000 L bioreactor needs about 1.5 m/s tip speed, above the 0.8–1.3 m/s studied and near Leiden’s 1.6 m/s maximum. Leiden’s drilled-hole sparger means pCO₂ is likely to rise, it has no Raman port for glucose control, and its virus filter comes from a different supplier.
- 07Next
Each gap with its evidence, an action and an owner
Gap writerG-2611-01, High, blocks the engineering run: peak pCO₂ at 200 L stayed between 62 and 95 mmHg and was never studied as a factor, and the FMEA does not assess it. The proposed action — six 3 L scale-down runs at 120–180 mmHg before the engineering run, plus a CO₂ stripping strategy in the Leiden recipe — goes to Sam Patel, due Oct 30.
The Gap writer proposes actions. It never decides or closes a gap.
- 08Drafted
The package, in the company template
Package writerTen sections, from purpose and scope through parameters and control strategy, equipment fit and scale-up, analytical methods, risk assessment, holds and stability to open gaps and agreed actions. Every statement cites its source, and the hold decision Lena just made is already in section 9. It exports as PDF, as Word, or as structured parameters for Leiden’s systems.
- 09Before signing
The signature gate: four actions to agree
Lena Ortiz · Tech transfer leadEvery gap that blocks the engineering run needs an agreed action before anyone signs, so the Sign button stays locked. Lena reviews the four the Gap writer proposed — pCO₂, the unassessed second supplier of medium A, off-line glucose without Raman, and the engineering-run sampling plan — each with its owner and due date, and agrees them.
- 10Signed · Oct 7
Both sites and Quality sign the protocol
Lena Ortiz, Sam Patel, Omar HaddadDr. Maya Chen signed for the sending site on Oct 5. Lena signs TTP-2611 v1.0 with her password and the meaning “Approved — transfer lead”, confirming she reviewed every gap decision that blocks the run. Sam Patel signs for Leiden, Omar Haddad approves for Quality, and TT-2611 moves to Engineering run.
“Protocol signed by all four — TT-2611 moves to Engineering run.”