Refrigerator Excursion Before a Scheduled Dose
A phase III placebo-controlled trial of a weekly injectable for type 2 diabetes stores prefilled pens at 2-8°C, protected from light. On Saturday, a 3.5-hour power outage caused the site pharmacy refrigerator to reach 1.2°C; the data logger shows the pens never went above 8°C. Six kits were in the refrigerator. Two kits are assigned to Subject 1042, who is scheduled for a dose visit on Monday at 9:00 a.m. The pharmacy manual states that any temperature excursion must be quarantined, documented, and reported to the sponsor's drug supply group before use; 'do not dispense until written disposition is received.' The site pharmacist says, 'Pens look clear; a little cold won't hurt.' The study coordinator is leaving for a 3-day conference Sunday and wants to keep Subject 1042 on schedule. The protocol visit window is plus or minus 2 days.
1. What immediate actions should the coordinator take after discovering the excursion?
Read the worked answer
Quarantine all six kits immediately, label them 'Do Not Use - Temperature Excursion,' and move them to a qualified monitored location. Preserve the data logger download and the pharmacy temperature log; record the time, minimum temperature (1.2°C), duration (3.5 hours), and kits affected. Notify the sponsor's drug supply group and the clinical monitor in writing the same day, using the pharmacy manual's excursion process. Do not dispense based on visual inspection; the concern is not visible precipitation but potential loss of potency or stability. Ask for written disposition for each kit. The pharmacist's opinion does not override the sponsor's stability data. The coordinator should also check whether any affected kit was dispensed before the excursion and, if so, notify the sponsor and assess subjects. The coordinator should not leave for the conference until a handoff and interim storage plan are documented.
2. What should happen with Subject 1042's Monday dose?
Read the worked answer
For Monday, do not use any quarantined kit. If the sponsor provides written release for the affected kits, dispense per that instruction; otherwise use an unaffected kit from monitored storage if one is available and assigned. If no compliant kit is available, reschedule Subject 1042 within the protocol's plus or minus 2-day window and document the reason. Do not tell the subject the pens are 'fine' or speculate. If the delay goes beyond the window, report a protocol deviation and follow the protocol's missed-dose instructions. The coordinator should ensure a trained backup covers the visit and that the subject is contacted promptly. The judgment is that schedule pressure does not justify using unapproved investigational product; the decision belongs to the sponsor's stability assessment, not the site.
3. What documentation and communication should the coordinator complete?
Read the worked answer
Document the excursion in the pharmacy file, the quarantine log, and the subject's source record if the visit is affected. Keep emails from the sponsor with the disposition. Record the subject communication and the rescheduled date. Do not backdate the temperature log or write that storage was 'within range.' If a dose is delayed, document the delay and any protocol deviation per site SOP. Notify the monitor before the monitoring visit. The coordinator should also review whether the refrigerator alarm and after-hours response failed and whether a corrective action is needed. The pharmacist's comment should be documented only as an opinion, not as authorization. If the subject was already dosed with an affected kit, report that immediately and follow sponsor instructions for safety monitoring; the coordinator should not conceal a potential product quality issue.