%0 Journal Article %T Single agent Talimogene Laherparepvec for stage IIIB-IVM1c melanoma patients: A systematic review and meta-analysis. %A Stahlie EHA %A Mulder EEAP %A Reijers S %A Balduzzi S %A Zuur CL %A Klop WMC %A van der Hiel B %A Van de Wiel BA %A Wouters MWJM %A Schrage YM %A van Houdt WJ %A Grunhagen DJ %A van Akkooi ACJ %J Crit Rev Oncol Hematol %V 175 %N 0 %D Jul 2022 %M 35569723 %F 6.625 %R 10.1016/j.critrevonc.2022.103705 %X Single-agent Talimogene LaherparepvecĀ (T-VEC) was developed for treatment of unresectable and injectable stage III-IV melanoma. Since its approval and reimbursement, studies have reported varying response rates. The purpose of this systematic review and meta-analysis was to investigate the efficacy and safety of T-VEC. Of 341 publications that were identified, eight studies with a total of 642 patients were included. In patients with stage IIIB-IVM1a, the pooled complete- and overall response rateĀ (CRR and ORR) were 41% and 64%, respectively. In patients with stage IIIB-IVM1c, the pooled CRR and ORR were 30% and 44%, respectively. In patients with stage IVM1b and IVM1c, the pooled CRR and ORR were 4% and 9%, respectively. Adverse eventsĀ (AEs) were seen in 41-100% of all patients and 0-11% of AEs were severe. In conclusion, single agent T-VEC achieves the highest response rates in patients with early metastatic melanoma and is well-tolerated with generally only mild toxicities.