Received Jul 2, 2026
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MNP | MENINGOCOCCAL CONJUGATE (PENMENVY) | GLAXOSMITHKLINE BIOLOGICALS | UNK | 5S723/A | — |
Inappropriate reconstitution technique; Inappropriate reconstitution technique; This non-serious case was reported by a physician via call center representative and described the occurrence of inappropriate preparation of medication in a 16-year-old male patient who received Men ABCWY NVS (Penmenvy) suspension for injection in pre-filled syringe (batch number 5S723/A with expiry date 08-OCT-2026 and batch number 5S723/B with expiry date 30-MAR-2028) for prophylaxis. On 29-JUN-2026, the patient received Penmenvy (intramuscular, left deltoid). On 29-JUN-2026, an unknown time after receiving Penmenvy, the patient experienced inappropriate preparation of medication (Verbatim: Inappropriate reconstitution technique) and inappropriate dose of vaccine administered (Verbatim: Inappropriate reconstitution technique). The outcome of the inappropriate preparation of medication and inappropriate dose of vaccine administered were not applicable. This report is made by GSK without prejudice and does not imply any admission or liability for the incident or its consequences. Additional Information: GSK Receipt Date: 29-JUN-2026 The physician reported that a new nurse was giving Penmenvy but she did not reconstitute it. Thus only the prefilled syringe liquid component MenB component was given and not the lyophilized MenACWY Component. The physician was transferred to medical information because she was seeking guidance on next steps.