Received Feb 1, 2026
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MNP | MENINGOCOCCAL CONJUGATE (PENMENVY) | GLAXOSMITHKLINE BIOLOGICALS | UNK | 5S723 | — |
Administration of only the diluent; Administration of only the diluent; This non-serious case was reported by a nurse via call center representative and described the occurrence of inappropriate preparation of medication in a 17-year-old male patient who received Men ABCWY NVS (Penmenvy) (batch number 5S723, expiry date 08-OCT-2026) for prophylaxis. On 14-JAN-2026, the patient received Penmenvy. On 14-JAN-2026, an unknown time after receiving Penmenvy, the patient experienced inappropriate preparation of medication (Verbatim: Administration of only the diluent) and inappropriate dose of vaccine administered (Verbatim: Administration of only the diluent). 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: 27-JAN-2026 Reporter had called on 27-JAN-2026 to report the administration of only the diluent of Penmenvy to patient. The patient who received it had, unfortunately, only received the meningitis B component of Penmenvy. The reporter believed this had been the first dose of the MenB component and that it should have been the second dose of the ACYW component for patient, but the reporter had not been able to verify this at that time.