Based on information received on 31-jan-2018, the report previously considered as non-valid became valid and from non-serious to serious as new serious events of device malfunction, knee swelling and aspirated in er /aspirate done were added with seriousness criteria of required intervention.(b)(4).This unsolicited case from united states was received on 22-dec-2017 from a healthcare professional.This case concerns an adult (b)(6) male patient who received treatment with synvisc one and after unknown latency the patient experienced knee swelling; after a latency of 1 week patient knee was aspirated in er /aspirate done and gram staining was with moderate wbc, no organism.Also, device malfunction was identified for the reported lot number.No past drug, concomitant medication, medical history or concurrent condition was provided.On (b)(6) 2017, the patient initiated treatment with single intra-articular synvisc one injection at a dose of 1 df once for acute knee pain (batch/ lot number: 7rsl021 and expiration date: 31-may-2020).On an unknown date in (b)(6) 2017, latency unknown, patient had knee swelling.On (b)(6) 2017 after a latency of 1 week patient's knee was aspirated in er.The fluid was sent for culture which came out to be negative and gram staining was done with moderate wbc and no organisms.Patient was treated with medrol dose pack.Corrective treatment: methylprednisolone (medrol) for knee swelling and aspirated in er /aspirate done; not reported for other events.Outcome: not recovered for gram stain with moderate wbc, no organism; unknown for other events.An investigation was initiated as a result of an unexpected increase in the number of labelled adverse events received from the us market for synvisc one, lot 7rsl021.The product met all release testing at time of manufacture in june 2017.Retain samples were retested due to the unexpected increase in adverse events.Higher than expected endotoxin results were obtained.In addition, the presence of microbial contamination was also confirmed.The cause of these events is under investigation.Once this investigation is completed, corrective and preventive actions will be implemented.Additional information was received on 31-jan-2018 from the patient.Events of device malfunction, knee swelling, aspirated in er /aspirate done and gram staining with moderate wbc, no organism.Event of adverse reaction (unevaluable event) was deleted.Clinical course was updated and text amended accordingly.Pharmacovigilance comment: sanofi company comment follow up dated 31-jan-2018: this case concerns a male patient who had received synvisc- one injection from re-called lot and later developed right knee swelling and effusion and had moderate wbc's in the synovial fluid the temporal relationship is significant and hence, causal role of suspect product cannot be ruled out in occurrence of the event.Furthermore, the concerned lot has been identified to have malfunction by the company.Therefore, the causal relationship of the events to the products cannot be excluded.
|