Targeted Chemotherapy Using Focused Ultrasound for Liver Tumours
Summary
This proof of concept study proposes targeted delivery of a broad-spectrum cytotoxic agent (doxorubicin), via a specially formulated LTSL (ThermoDox®) activated by mild hyperthermia, by using focused ultrasound (FUS), to achieve enhanced intra-tumoural doxorubicin concentrations for the same systemic dose. Adult patients with incurable confirmed hepatic primary or secondary tumours received a single cycle of LTLD, followed by ultrasound-mediated hyperthermia to a single target liver tumour. The primary endpoint relates to evidencing enhanced delivery of doxorubicin from LTLD at the target tumour site, by comparing intratumoural concentrations of the drug before and after focused ultrasound (FUS) exposure.
Timeline
- Start
- 2014-07
- Primary completion
- 2017-03
- Completion
- 2017-04
Outcome
Met primary endpoint
paper Increases of two to ten times were observed in seven (70%) of ten patients, satisfying the primary endpoint. PMID 30001990 ↗
registry analysis (superiority test); Part I (Patients Enrolled Between March 2015-April 2017); p = 0.024; t-test, 2 sided; NCT02181075 ↗
Publications
- Background Lyon PC, Griffiths LF, Lee J, Chung D, Carlisle R, Wu F, Middleton MR, Gleeson FV, Coussios CC. Clinical trial protocol for TARDOX: a phase I study to investigate the feasibility of targeted release of lyso-thermosensitive liposomal doxorubicin (ThermoDox(R)) using focused ultrasound in patients with liver tumours. J Ther Ultrasound. 2017 Nov 2;5:28. doi: 10.1186/s40349-017-0104-0. eCollection 2017.
- Background Kreb DL, Bosscha K, Ernst MF, Rutten MJ, Jager GJ, van Diest PJ, van der Linden JC. Use of cytokeratin 8 immunohistochemistry for assessing cell death after radiofrequency ablation of breast cancers. Biotech Histochem. 2011 Dec;86(6):404-12. doi: 10.3109/10520295.2010.517473. Epub 2010 Oct 18.
- Results Lyon PC, Gray MD, Mannaris C, Folkes LK, Stratford M, Campo L, Chung DYF, Scott S, Anderson M, Goldin R, Carlisle R, Wu F, Middleton MR, Gleeson FV, Coussios CC. Safety and feasibility of ultrasound-triggered targeted drug delivery of doxorubicin from thermosensitive liposomes in liver tumours (TARDOX): a single-centre, open-label, phase 1 trial. Lancet Oncol. 2018 Aug;19(8):1027-1039. doi: 10.1016/S1470-2045(18)30332-2. Epub 2018 Jul 11.
- Results Gray MD, Lyon PC, Mannaris C, Folkes LK, Stratford M, Campo L, Chung DYF, Scott S, Anderson M, Goldin R, Carlisle R, Wu F, Middleton MR, Gleeson FV, Coussios CC. Focused Ultrasound Hyperthermia for Targeted Drug Release from Thermosensitive Liposomes: Results from a Phase I Trial. Radiology. 2019 Apr;291(1):232-238. doi: 10.1148/radiol.2018181445. Epub 2019 Jan 15.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Doxorubicin | Other / unclassified | 50 mg/m2 | Intravenous |