ClinicalTrials.gg
Not yet recruitingNCT07911527Updated Nov 2, 2026

The Edison™ System for Treatment of Renal Tumors Using Histotripsy (Histo-Renal Trial)

An interventional study of HistoSonics® Edison System (US) in Renal Tumors, sponsored by Chinese University of Hong Kong. Not yet recruiting. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-02.

Sponsored by Chinese University of Hong Kong · Not applicable, Interventional, and Treatment

Updated Nov 2, 2026Newly registeredGo to Updates ↓

Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →

Phase
Not applicable
Study type
Interventional
Enrollment
15
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This is a prospective single-center, single-arm, feasibility trial designed to evaluate the safety of the HistoSonics Histotripsy System for treatment of renal tumors. The type of design is exploratory and is considered interventional. Following histotripsy, subjects will undergo imaging ≤ 72 hours post-index procedure. Additionally, subjects will be followed at 1 month, 3 months, 6 months and 12 months timepoints.

Read the detailed description

Trial Population:

15 subjects with biopsy confirmed renal cell carcinoma

Objective:

The objective of this trial is to evaluate the safety of histotripsy and its technique efficacy using the Edison System for treatment of renal tumor.

Device Name:

HistoSonics® Edison System (US)

Enrollment:

Targeting a maximum of 15 treated subjects in Hong Kong

Duration of Trial:

The duration of this trial is expected to be approximately 36 months.

Primary Outcome Measure:

Index procedure-related complications ≤30 days post index procedure, graded using Clavien-Dindo Classification and Common Terminology Criteria for Adverse Events (CTCAE). [Clinical Events Committee Adjudicated]

Additional Data Collection:

  • Histotripsy procedure and treatment parameters.
  • Contrast CT at baseline and ≤ 72 hours, then 3, 6 and 12 months post index procedure.
  • Pain score as measured by Numeric Rating Scale (NRS). [Index procedure prior to anesthesia, post-procedure and all follow-up visits]
  • Length of hospital stay as measured by number of hours in hospital.
  • All adverse events reported post-index procedure for the duration of the trial Follow-Up Visits: Follow-up visits will occur at 72 hrs, 30 days, 90 days, 6-month and 12-month post index procedure.

Statistics:

All outcome measures will be summarized descriptively with 95% confidence intervals if appropriate.

02

Conditions studied

  • Renal Tumors

Keywords

  • Renal Tumors
  • Histotripsy
03

In context

Carcinoma, Renal Cell

2,038 studies on the registry are indexed under Carcinoma, Renal Cell; 395 are open to participants now.

This study's planned enrollment of 15 is below the median of 43 across 1,565 interventional studies indexed under Carcinoma, Renal Cell.

Browse Carcinoma, Renal Cell studies →

Lead sponsor

Chinese University of Hong Kong is the lead sponsor of 1,454 studies on the registry; 474 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Subject is ≥ 18 years of age.
  • Unilateral native kidney solitary -proven renal cell carcinoma ≤ 3 cm.
  • Subject has signed the Ethics Committee (EC) approved trial Form (ICF) prior to any trial related tests/procedures and is willing to comply with trial procedures and required follow-up assessments.
  • Subject has a (BMI) \< 27.
  • Subject can tolerate general anesthesia.
  • Subject has an adequate acoustic window to visualize the kidney using the HistoSonics Edison System.
  • The planned histotripsy treatment volume is ≥ 1cm from the bowel as visualized on ultrasound, CT or MR imaging.

Exclusion criteria

Exclusion Criteria:

  • Subject has a of less than one (\<1) year.
  • Subject has a known sensitivity to contrast media and cannot be adequately pre-medicated.
  • Subject has an estimated (eGFR) ≤ 50 mL/min, ≤ 14 days prior to the planned index procedure date.
  • Subject has uncorrectable coagulopathy.
  • Subject has an (INR) value ˃ 2.0, ≤ 14 days prior to the planned index procedure date.
  • Subject has had surgery to the kidney with the index lesion
  • Subject has calcifications in the planned treatment volume (PTV).
  • Subject has had a major abdominal surgery that inhibits visualization of the kidney
  • Subject has planned kidney surgery 6 months post index procedure.
  • Subjects who have active cancers (not in remission or has had treatment in the last year) other than nonmelanomatous skin cancers.
  • Subject is being actively treated in another pharmaceutical or device trial that has not completed its primary endpoint prior to the index procedure or may interfere with the primary outcome measure of this trial.
  • In the investigator's opinion, histotripsy is not a treatment option for the subject.
  • Subject has a concurrent condition that could jeopardize the safety of the subject or compliance with the protocol.
  • Subject's kidney tumor is not treatable by the System's working ranges.
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
15 participants (estimated)

Study arms

  • Experimental
    Treatment

    Using the HistoSonics® Edison System (US) for treatment of renal tumor

    Device: HistoSonics® Edison System (US)

Interventions

  • DeviceHistoSonics® Edison System (US)

    Patient will be arranged to admit to the Chinese University of Hong Kong Medical Centre (CUHKMC), assessed by anaesthetist before the operation, and go through histotripsy treatment under general anaesthesia in CUHK Medical Centre (CUHKMC). After general anaesthesia with intubation, the patient is placed in left or right lateral position. A water tank will be placed on top of the patient's loin area. The histotripsy ultrasound and treatment head will be placed inside the water tank and image-guided histotripsy ablation of the kidney tumor will be performed. The overall anaesthesia time is estimated to be 60-75 minutes and ablation time is 10-20 minutes, respectively. The expected length of hospital stay is 1 day after operation. Patient will be followed up and assessed up to 1 year after the procedure.

06

What researchers measure

Primary outcomes

  1. Primary technique efficacy

    The percentage of targeted tumours that were successfully eliminated after a single histotripsy session, as assessed by contrast-enhanced MRI or CT

    Time frame: at 90 days after treatment

  2. Primary safety endpoint

    Freedom from index procedure-related major complications, defined by Clavien-Dindo Classification Grade 3 or higher

    Time frame: at 30 days after the histotripsy procedure

Secondary outcomes

  1. Secondary effectiveness

    Rate of demonstrating complete coverage of the targeted tumour on post-treatment contrast enhanced MRI or CT

    Time frame: within 72 hours after the histotripsy procedure

  2. Secondary safety endpoint

    Freedom from index procedure related major complications, defined by Clavien-Dindo Classification Grade 3 or higher

    Time frame: at 90 days after the histotripsy procedure

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Wah TM, Amaral JF, Laeseke PF. Treatment of Primary Solid Renal Tumours Using Histotripsy: Study Protocol for the CAIN Feasibility Trial. Cardiovasc Intervent Radiol. 2025 Jun;48(6):857-865. doi: 10.1007/s00270-025-04035-5. Epub 2025 Apr 28. PubMed 40295399 ↗
  • Atwell TD, Carter RE, Schmit GD, Carr CM, Boorjian SA, Curry TB, Thompson RH, Kurup AN, Weisbrod AJ, Chow GK, Leibovich BC, Callstrom MR, Patterson DE. Complications following 573 percutaneous renal radiofrequency and cryoablation procedures. J Vasc Interv Radiol. 2012 Jan;23(1):48-54. doi: 10.1016/j.jvir.2011.09.008. Epub 2011 Oct 28. PubMed 22037491 ↗
  • Huang RS, Chow R, Benour A, Chen D, Boldt G, Wallis CJD, Swaminath A, Simone CB 2nd, Lock M, Raman S. Comparative efficacy and safety of ablative therapies in the management of primary localised renal cell carcinoma: a systematic review and meta-analysis. Lancet Oncol. 2025 Mar;26(3):387-398. doi: 10.1016/S1470-2045(24)00731-9. Epub 2025 Feb 5. PubMed 39922208 ↗

Individual participant data

Plan to share: Undecided

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Nov 2026; primary completion for Dec 2028, 25 months later.

Of 119 non-industry interventional studies with no phase under Carcinoma, Renal Cell, half reached primary completion within 48 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 114. This study's planned 25 months is below that.

Counting every sponsor, half of 126 studies reached it within 45 months; a quarter within 22 and three quarters within 114.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 27, 2026
First posted
Nov 2, 2026
StartEst.
Nov 1, 2026
Primary completionEst.
Dec 31, 2028
CompletionEst.
Feb 28, 2029
Last update
Nov 2, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Registered
First appeared on the registry. No changes since
Nov 2, 2026
Show all 1 update
  1. Nov 2, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07911527
Responsible party
CHIU Ka Fung Peter (Principal Investigator, Chinese University of Hong Kong) — Principal investigator
First posted
Nov 2, 2026
Start date
Nov 1, 2026 (estimated)
Primary completion
Dec 31, 2028 (estimated)
Completion
Feb 28, 2029 (estimated)
Last update
Nov 2, 2026

Study contacts

Peter Ka Fung CHIU, MBChB, FRCSEd
Contact
peterchiu@surgery.cuhk.edu.hk
+852 3505 3933
Ka Fung Peter CHIU, MBChB, FRCSEd
principal investigator · Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion