Solid Tumours
Conditions
Keywords
Pharmacokinetics, Non-small cell lung cancer (Stage III, unresectable), Small cell lung cancer (Limited stage), Hepatocellular carcinoma (Unresectable), Subcutaneous, Human hyaluronidase, Monoclonal antibody, Programmed cell death ligand 1 (PD-L1), Programmed cell death protein 1, Anticancer therapy
Brief summary
The purpose of the study is to determine a subcutaneous (SC: under the skin) durvalumab + recombinant human hyaluronidase (rHu) dose that yields systemic drug exposure similar to intravenous (IV: into the veins) durvalumab administration and to evaluate the pharmacokinetics and safety of SC durvalumab + rHu injection in participants with different types of solid tumours (cancers).
Detailed description
This is a Phase I, multicentre study that will consist of 2 parts - * Part 1: Dose Escalation * Part 2: Dose Expansion Part 1 may include participants with solid tumours - non-small cell lung cancer (NSCLC), hepatocellular carcinoma (HCC) or limited-stage small cell lung cancer (LS-SCLC). It will further consist of 2 planned dose levels of SC durvalumab - Dose level 1 (DL1) and Dose level 2 (DL2). Part 2 will include participants with unresectable HCC. It will be initiated once a dose has been identified based on Part 1.
Interventions
Durvalumab + rHu will be administered subcutaneously.
Durvalumab will be administered intravenously.
Tremelimumab will be administered to participants with unresectable HCC as an IV infusion.
Sponsors
Study design
Eligibility
Inclusion criteria
* An Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. * Life expectancy of ≥ 12 weeks at enrolment. * Adequate organ and marrow function. * Minimum body weight \> 30 kg. Part 1 only: Locally Advanced Unresectable (Stage III) NSCLC Participants - * Histological or cytological documented evidence of NSCLC (locally advanced, unresectable, Stage III). * Must have received at least 2 cycles of platinum-based chemotherapy concurrent with definitive radiation therapy. * Have not progressed following definitive concurrent chemoradiation. LS-SCLC Participants - * Histologically or cytologically documented LS-SCLC (Stage I-III). * Received 4 cycles of chemotherapy concurrent with radiotherapy, which must be completed within 1 to 42 days prior to enrolment. * Have not progressed following definitive concurrent chemoradiation. Part 1 and 2: Unresectable HCC Participants - * Unresectable HCC based on histopathological confirmation. * No prior systemic therapy for unresectable HCC. * Must not be eligible for locoregional therapy for unresectable HCC. * Child-Pugh Score class A. * Measurable disease as defined by RECIST v1.1.
Exclusion criteria
* Active or prior documented autoimmune disease requiring systemic treatment. * Uncontrolled infection (including human immunodeficiency virus \[HIV\], hepatitis B or C). * Prior exposure to immune checkpoint inhibitors. Part 1 only: Locally Advanced Unresectable (Stage III) NSCLC Participants - * Mixed SCLC and NSCLC histology. * Active pneumonitis or interstitial lung disease requiring systemic therapy. LS SCLC Participants - * Mixed SCLC and NSCLC histology. * Extensive-stage disease. * History of Grade ≥ 2 pneumonitis. Part 1 and 2: Unresectable HCC Participants - * Hepatic encephalopathy. * Uncontrolled ascites. * Active gastrointestinal (GI) bleeding.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Observed lowest concentration before the next dose is administered (Ctrough) | From first dose of study intervention (Day 1), at predefined intervals throughout the administration of durvalumab (approximately 17 months). | To characterise the Ctrough of SC durvalumab |
| Area under the concentration-time curve | From first dose of study intervention (Day 1), at predefined intervals throughout the administration of durvalumab (approximately 17 months). | To characterise the AUC of SC durvalumab. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Apparent volume of distribution based on the terminal phase volume (Vz[/F]) | From first dose of study intervention (Day 1), at predefined intervals throughout the administration of durvalumab (approximately 17 months). | To characterise the VZ(/F) of SC durvalumab. |
| Average drug concentration over a dosing interval (Cavg) | From first dose of study intervention (Day 1), at predefined intervals throughout the administration of durvalumab (approximately 17 months). | To characterise the Cavg of SC durvalumab. |
| Serum concentration of durvalumab | From first dose of study intervention (Day 1), at predefined intervals throughout the administration of durvalumab (approximately 17 months). | To characterise the serum concentration of SC durvalumab at specified timepoints. |
| Number of participants with adverse events (AEs) | Up to Survival Follow-up (approximately 17 months) | To assess the safety and tolerability of SC durvalumab. |
| Number of participants with dose-limiting toxicities (DLTs) | Up to Survival Follow-up (approximately 17 months) | To assess the safety and tolerability of SC durvalumab. |
| Area under the concentration-time curve from time 0 to last quantifiable concentration (AUClast) | From first dose of study intervention (Day 1), at predefined intervals throughout the administration of durvalumab (approximately 17 months). | To characterise the AUClast of SC durvalumab. |
| Maximum observed concentration (Cmax) | From first dose of study intervention (Day 1), at predefined intervals throughout the administration of durvalumab (approximately 17 months). | To characterise the Cmax of SC durvalumab. |
| Terminal elimination half-life (t1/2λz) | From first dose of study intervention (Day 1), at predefined intervals throughout the administration of durvalumab (approximately 17 months). | To characterise the t1/2λz of SC durvalumab. |
| Time to reach maximum concentration following drug administration (tmax) | From first dose of study intervention (Day 1), at predefined intervals throughout the administration of durvalumab (approximately 17 months). | To characterise the tmax of SC durvalumab. |
| Total body clearance/apparent total body clearance (CL[/F]) | From first dose of study intervention (Day 1), at predefined intervals throughout the administration of durvalumab (approximately 17 months). | To characterise the CL(/F) of SC durvalumab. |
Countries
Australia, Georgia, Poland, South Korea, Taiwan