Safety letters

Distribution is easy. Proving acknowledgement is the work.

Sending a SUSAR letter takes a moment. Proving, months later, that a named investigator received and read a specific version is what takes weeks — because the evidence is a mailbox.

  • Recipient targeting
  • Per-person acknowledgement
  • Escalation
  • Filed evidence
Distribution status · illustrative
82%
Acknowledged
SL-2026-014 · per named recipient
Recipients targeted
38
Acknowledged
31
Outstanding
7
Overdue · escalated
2
Evidence filed to eTMF
Automatic

Per named person, not per site.

Better than email, cheaper than a vendor

Distribution and evidence, without a third party.

The two usual options are a mail merge, which produces no evidence, or a vendor whose system knows nothing about your sites. Running it beside the delegation log removes both problems.

  • The recipient list builds itself

    Derived from active sites and current delegation — who is there today, not who was.

  • Acknowledgement is a record

    A named person confirms against their own account, for a specific version, with a timestamp.

  • Chasing is part of oversight

    Outstanding acknowledgements appear in the CRA's preparation for that site's next visit.

  • Evidence files itself

    Letter, version, recipients and acknowledgements land in the eTMF and each site file.

  • No extra vendor, no extra contract

    One platform, one contract, one login. A vendor is another onboarding and another integration.

  • Sign-off before it goes out

    Medical and regulatory approval gates distribution, rather than being a convention.

The workflow

From letter to filed evidence.

  1. Prepare

    The letter is drafted or uploaded and versioned. Medical and regulatory sign-off is recorded before it can be sent.

  2. Target

    Recipients are derived from active sites and current delegation, so the list reflects who is actually there today.

  3. Distribute

    Each recipient is notified individually and sees the letter against their own account.

  4. Acknowledge

    Recipients confirm receipt per person and per version. The record is attributable and timestamped.

  5. Escalate

    Outstanding acknowledgements are reminded, escalated, and surfaced in monitoring visit preparation.

  6. File

    Letter, recipient list and acknowledgement record file to the eTMF and each site file automatically.

What it covers

The parts that carry the evidential weight.

Sign-off before send

Medical and regulatory approval recorded as a gate, not as a convention.

Derived recipients

Built from active sites and current delegation rather than a maintained list.

Per-person delivery

Each recipient receives it against their own account, not a shared site mailbox.

Attributable acknowledgement

Who confirmed, which version, when — recorded rather than inferred.

Outstanding visible

The chase list is part of oversight, visible to CRAs preparing their next visit.

Evidence filed

The full distribution record files to the eTMF and site files as it is produced.

Common questions

How is the recipient list determined?

From the study's own records — which sites are active, who is currently delegated at each, and which roles a given letter must reach. It is derived rather than maintained as a separate distribution list, which is what stops it going stale.

What counts as acknowledgement?

A named recipient confirming, against their own account, that they have received and read the specific letter version. It is recorded per person with a timestamp, not inferred from an email open or a site-level reply.

What happens to recipients who do not acknowledge?

They stay outstanding and visible. Reminders can be sent, and the outstanding list is available to the CRA preparing the next monitoring visit, so chasing happens as part of normal oversight rather than as a separate campaign.

Is the evidence filed automatically?

Yes. The letter, its version, the recipient list and the acknowledgement record file to the eTMF and to each site's own file as they are produced.

Demo

Bring a safety letter distribution you had to evidence.

30 minutes with a founder. We'll run the distribution and show what the acknowledgement evidence looks like at the point an inspector asks for it.