SUSARs: Who Must Be Told, Inside What Clock

Part of Regulatory Affairs and the Jurisdiction Map: Safety Reporting Obligations.

About 5 minutes. Free, in your language, no account needed.

Why this matters

Expedited safety reporting is the one area of regulatory work where being late is not a process failure. It is a reportable breach with its own consequences, and the clocks are short enough that a weekend can consume a meaningful fraction of one.

The concept is narrow and precise, and most errors come from imprecision about the three words that define it.

What makes a report expedited

A suspected unexpected serious adverse reaction has three components, and all three must be present.

Serious. The event resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability or incapacity, or was a congenital anomaly or birth defect. Other medically important events may qualify where they jeopardize the participant or require intervention to prevent one of these outcomes.

Unexpected. The nature or severity is not consistent with the reference safety information. This is the component people get wrong, because "unexpected" is not a clinical judgment about surprise. It is a comparison against a specific document, usually the Investigator's Brochure's reference safety information section, and the answer changes when that document is updated.

Suspected reaction. There is a reasonable possibility of a causal relationship with the investigational product. The investigator assesses causality; the sponsor also assesses it; and where either considers there is a reasonable possibility, the report proceeds.

An event can be serious and related and still not be expedited, because it is expected. An event can be unexpected and related and not expedited, because it is not serious. All three, or it is not this.

The clocks

The clocks run from the sponsor's awareness, not from the event. This is the most commonly misunderstood point, and it cuts both ways: a delay in the site telling the sponsor does not extend the clock's start, it simply means the site created a problem the sponsor must still solve inside the same window.

The widely applied pattern distinguishes two categories. Fatal or life-threatening reactions carry a shorter clock, commonly seven calendar days for an initial report with a follow-up within a further eight. All other suspected unexpected serious adverse reactions commonly carry fifteen calendar days.

Those are the common numbers. They are not universal, and a global procedure that hard-codes a single number will be wrong somewhere. Establish the clock per jurisdiction, and record where you got it.

Who must be told

The list is longer than the authority alone, and each recipient can have its own clock:

The regulatory authority in each concerned jurisdiction.

The ethics committees, on a requirement that is frequently separate from the authority's and sometimes on a different timeline. Where ethics review is local, this can mean many recipients.

The investigators, who must receive safety information relevant to the trial so they can consider it in the care of their participants and in what they tell them.

Other parties where the framework or the arrangement requires, including partners under a co-development agreement and, in some jurisdictions, a named local representative.

A report sent to the authority and nobody else has satisfied one obligation of four.

In practice

A site reports a fatal event on a Friday afternoon. The investigator assesses it as possibly related. The sponsor's safety team receives it at 16:40 local time.

The clock starts on sponsor awareness, which is Friday. A seven day clock expires the following Friday, and it counts calendar days, so the intervening weekend is two of the seven.

The regulatory lead's immediate work is not the report itself, which the safety function owns. It is the recipient list, because that is where the per-jurisdiction variation lives: which authorities, which ethics committees, on what clocks, and whether any of them require a specific form or language.

She has this prepared before any event occurs, as a standing table maintained with the study's regulatory file. Building the recipient list on the Friday afternoon of a fatal event is how recipients get missed.

What this looks like when it goes wrong

A sponsor's procedure specifies fifteen calendar days for expedited reports, citing international guidance, and applies it globally.

A fatal suspected unexpected serious adverse reaction occurs. The report is submitted on day fourteen, comfortably inside the procedure.

It is eight days late in every jurisdiction applying a seven day clock to fatal reactions, which is most of them. The lateness is on the single most serious category of report, and the sponsor's own procedure is the evidence that the error was systematic rather than an isolated slip.

An inspector reading that procedure does not find a mistake. They find a sponsor that never asked the per-jurisdiction question, and they will reasonably wonder what else was answered globally that should have been answered locally.

Key takeaways