STUDY DESIGN: Prospective, non-randomized, multi-center feasibility trial
SAMPLE SIZE: 8 participants with 11 treated tumors
POPULATION: HCC, intrahepatic cholangiocarcinoma, breast metastasis, colorectal metastases
PRIMARY ENDPOINTS/RESULTS: This feasibility trial demonstrated 100% technical success, observed up to 8 weeks, with no device or procedure related adverse events
STATUS: Completed, published
PUBLICATION: Vidal-Jove J, et al. Int J Hyperthermia. 2022;39(1):1115-1123
STUDY DESIGN: Parallel US and EU/UK trials were pivotal multi-center, single-arm trials to evaluate the safety and technical success of histotripsy to destroy primary and metastatic liver tumors against established performance goals
SAMPLE SIZE: 47 participants with 52 treated tumors
POPULATION: HCC and colon, rectum, breast, pancreas, uveal melanoma and 6 other types of liver metastases
PRIMARY ENDPOINTS/RESULTS: Co-primary endpoints were met: Primary technical success endpoint was met with 95.5% of the evaluable lesions achieving technical success within 36 hours of the procedure. Primary safety endpoint was met with a reported procedure-related major complication rate CTCAE ≥3 of 6.8%. Local tumor control of targeted tumor(s) at 1-year was 90% as assessed by the imaging core laboratory by Kaplan-Meier estimation; the rate of local tumor control in #HOPE4LIVER participants at 1-year was similar to rates reported for other locoregional therapies. Overall survival at 1 year post histotripsy was 48.6% and 73.3% in participants with liver mets and HCC, respectively. Although the trial was not designed for definitive treatment, participants demonstrated survival rates in-line with rates reported for similar HCC and metastatic populations treated with other locoregional therapies.
STATUS: Published, active follow-up
PUBLICATIONS:
Mendiratta-Lala, M, et al. Radiology. 2024;312(3):e233051.
Ziemlewicz TJ, et al. Ann Surg. 2025 Apr 9. Epub ahead of print.
STUDY DESIGN: An observational, single-arm, non-randomized, prospective Master Protocol driven post market study designed to observe the use of histotripsy to treat primary and metastatic liver tumors
SAMPLE SIZE: Up to 5000 participants
POPULATION: Primary (e.g., HCC, cholangiocarcinoma, angiosarcoma) or metastatic (from other primary cancers) liver cancer, or benign liver tumors (e.g., adenoma)
PRIMARY OUTCOMES: The Master Protocol will evaluate technical success of histotripsy in a broad patient population across multidisciplinary users. Histotripsy technical success is defined as completion of histotripsy on the target tumor(s) according to the histotripsy treatment plan, assessed by the treating physician on CT or MR imaging at ≤36 hours post-histotripsy treatment procedure. The BOOMBOX sub-studies will allow for further outcomes more relevant to participating disciplines to demonstrate the effect of histotripsy: as a mono- therapy, a combination therapy, for curative intent as well as priming for additional treatments.
STATUS: Recruiting participants
STUDY DESIGN: A prospective, multi-center, single-arm pilot trial designed to evaluate the effectiveness and safety profile of the HistoSonics Investigational System to treat solid renal tumors
SAMPLE SIZE: 20 participants
POPULATION: Participants with non-metastatic solid renal tumor ≤3cm
PRIMARY ENDPOINTS: Technical success defined as complete coverage of the tumor as determined ≤36 hours post-index procedure and freedom from index procedure related major complications at 30 days after the last histotripsy procedure
STATUS: Completed
STUDY DESIGN: Prospective, multi-center, single-arm pivotal trial designed to evaluate the effectiveness and safety of the
SAMPLE SIZE: 67 participants
POPULATION: Participants with a solitary non-metastatic solid renal tumor ≤3cm
PRIMARY ENDPOINTS: Technique Efficacy: percentage of targeted tumors successfully eliminated after a single histotripsy assessed at 90 days. Safety: Freedom from index procedure related major complications at 30 days post procedure.
STATUS: Enrollment completed in May 2025; active follow-up
STUDY DESIGN: A prospective multi-center, single-arm, feasibility trial designed to evaluate the safety of the
SAMPLE SIZE: Up to 50 participants, three cohorts based on planned histotripsy treatment size.
POPULATION: Unresectable pancreatic adenocarcinoma, locally advanced (Stage 3) or oligometastatic disease (Stage 4). Patients must receive ≥8 weeks of chemotherapy prior to being considered for this trial.
PRIMARY OUTCOME MEASURE: Index procedure-related complications ≤30 days post index procedure.
STATUS: Recruiting participants
STUDY DESIGN: A prospective multi-center, single-arm, feasibility trial designed to evaluate the safety of the HistoSonics Histotripsy System for treatment of benign prostatic hyperplasia (BPH).
SAMPLE SIZE: Up to 80 participants
POPULATION: Participants who are 50 years of age or older with a diagnosis of BPH.
PRIMARY OUTCOME MEASURE: Index procedure-related complications ≤30 days post index procedure.
STATUS: Not yet recruiting
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Last updated on October 16, 2025
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