A Phase II Trial to Evaluate the Efficacy of AZD6094 (HMPL-504) in Patients With Papillary Renal Cell Carcinoma (PRCC)

The study will comprise two stages. In Stage 1 approximately 20 patients will be enrolled. This group is considered sufficient to provide preliminary assessment of the anti-tumour activity of AZD6094 in the form of non-binding futility analysis. If ≤ 2 tumour responses are observed in the first 20 evaluable patients termination of the study will be considered taking into account the relevant molecular profile of the patients and additional information from related studies in the drug development programme. All patients entering the study will take AZD6094 600 mg by mouth (PO) once daily (QD). Treatment will be given continuously. Following the baseline assessment, efficacy will be assessed by objective tumour assessments every 6 weeks (±7 days), for the first 12 months and every 12 weeks thereafter until objective disease progression as defined by RECIST v1.1 There will be a data cut-off after all patients have completed at least 12 weeks of treatment with AZD6094 or withdrawn. The database will be locked and data analysis will be performed on this dataset. Any patients still receiving study drug at the time of data cut-off will be able to continue to receive AZD6094 while deriving clinical benefit. Such patients will continue to be monitored for the occurrence of serious adverse events up to 28 days after the last dose of AZD6094. After database lock (DBL) tumour assessments will be performed every 12 weeks (±7 days) until objective disease progression as defined by RECIST v1.1. Patients discontinuing treatment due to documented disease progression will enter a survival follow-up period, where they will be followed for the initiation of subsequent anti-cancer therapies every 3 months until death, loss to follow-up or withdrawal of consent, whichever comes first. Patients discontinuing treatment prior to documented disease progression will enter a progression-free survival follow-up period where they will continue to have disease assessments every 6 weeks (±7 days) for the first 12 months of follow-up and every 12 weeks thereafter until objective disease progression as defined by RECIST v1.1, death, loss to follow-up or withdrawal of consent, whichever comes first. After DBL, tumour assessments will be performed in the progression free survival patient population every 12 weeks (±7 days) until objective disease progression as defined by RECIST v1.1