ClinicalTrials.gg
RecruitingNCT07766187CODAHUpdated Oct 30, 2026

Combination Therapy Using Durvalumab and Histotripsy for Treatment of Intrahepatic Cholangiocarcinoma

A Phase 2 interventional study of Histotripsy and Durvalumab in Intrahepatic Cholangiocarcinoma, sponsored by University of Wisconsin, Madison. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-30.

Sponsored by University of Wisconsin, Madison · Phase 2, Interventional, and Treatment

Updated Oct 30, 2026Now RecruitingStart date moved+1 moreGo to Updates ↓
Phase
Phase 2
Study type
Interventional
Enrollment
12
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 21 studies testing durvalumab in Cholangiocarcinoma — 14 open to participants now, 18 under way, none of them phase 3. durvalumab · Cholangiocarcinoma.

Planned enrollment
20th of 21
12 · median 33
Started
2026
with 2 others
Phase 2
18 of 21
12 open now
Primary completion
2032-08
later than 17 of 17 live
Registered
20th of 21
by date

Among the 21 studies testing durvalumab in Cholangiocarcinoma, this one is the 20th largest by planned enrollment, is one of 3 that started in 2026, is one of 18 in phase 2, reaches primary completion later than 17 of the 17 other live ones, and was the 20th registered.

Cholangiocarcinoma

824 studies on the registry are indexed under Cholangiocarcinoma; 287 are open to participants now.

Browse Cholangiocarcinoma studies →

Open to participants now

14 of the 21 studies testing durvalumab in Cholangiocarcinoma are open now, in 5 countries. Recruiting first, the newest first:

8 more — sign in →

By country, each count listing its studies:

All 14 open studies →

About durvalumab

durvalumab: first FDA approval 2017 (IMFINZI), first EMA approval 2018. What it is approved for, and how studies give it, is on its page →

Who these studies take

Of the 211 Cholangiocarcinoma studies recruiting now, 141 (67%) set no upper age limit and 49 (23%) stop at 75 or younger; 10 take children under 18; 14 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 21 studies testing durvalumab in Cholangiocarcinoma, or all of them as a file.
02

Study summary

The purpose of this research is to evaluate whether adding histotripsy to maintenance durvalumab increases immune response and to assess the safety of this combination for participants with advanced intrahepatic cholangiocarcinoma (iCCA). Histotripsy is a non-invasive, non-thermal treatment that uses focused ultrasound energy to destroy tumor tissue. 12 people will be enrolled in this study.

Read the detailed description

The primary objective of this pilot phase II study is to evaluate preliminary efficacy of increased immune system activation and safety of combined histotripsy and maintenance durvalumab therapy.

The secondary objectives are to evaluate additional efficacy signal and safety of the addition of histotripsy along with continued maintenance durvalumab therapy.

Exploratory objectives include evaluation for off-target effects on iCCA tumors not targeted for histotripsy treatment and evaluation of peripheral blood samples for assessment of circulating immune biomarkers and circulating tumor DNA (ctDNA).

03

Conditions studied

  • Intrahepatic Cholangiocarcinoma

Browse trials for

Keywords

  • iCCA
  • histotripsy
  • tumor microenvironment
  • immunotherapy
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

  • Participant diagnosed with confirmed intrahepatic cholangiocarcinoma

    • Participant demonstrates disease control following 18 weeks of chemotherapy (gemcitabine and/or cisplatin) and immunotherapy (durvalumab) as part of standard of care regimen.

      • Participants are allowed to be on maintenance durvalumab therapy following disease control at 18 weeks prior to enrollment into the study.
    • All participants must have prior confirming diagnosis of cholangiocarcinoma.
  • Participant has iCCA tumor burden appropriate for biopsy and histotripsy treatment

    • Participant able to undergo liver biopsy of Index Tumor.

      • Index Tumor will be a predetermined non-histotripsy tumor in patients with multifocal disease, or a predetermined region of intentionally untreated tumor in patients with solitary disease.
    • Participant to have iCCA deemed targetable for histotripsy.

      • Participants with solitary tumor must have longest dimension ≥ 2.0 cm to allow for planned region of intentionally untreated Target Tumor for Index Tumor.
  • Participants' iCCA is considered unresectable or patient is a non-surgical candidate
  • Participant can undergo general anesthesia.
  • Participant has a Score of A or B (up to B8).
  • Participant has an Performance Status (ECOG PS) grade 0-2 at baseline screening.
  • Participant meets the following functional criteria, ≤7 days prior to the planned histotripsy procedure date

    • Liver function: (ALT) and Aspartate transaminase (AST) \<2.5x (ULN) and/or \<2.5 ULN.
    • Renal function: serum creatinine \<2x ULN.
    • Hematologic function: >1,000/uL and >50,000/uL, >8.0 g/dL.
  • Participant has an (INR) score of \<3.0, ≤7 days prior to the planned histotripsy procedure date.
  • Persons of must have a negative pregnancy test (serum or urine) within 7 days prior to registration.
  • Females of childbearing potential who are sexually active with a male able to father a child must be willing to abstain from heterosexual vaginal intercourse or use an effective method(s) of from the time of , during the study and for up to 14 months after the last dose of study drug(s). Males able to father a child must be willing to abstain from heterosexual vaginal intercourse or to use an effective method(s) of contraception from initiation of treatment, during the study and for up to 11 months after the last dose of study drug(s).
  • Ability of the participant to understand and comply with study procedures for the entire length of the study, as determined by the enrolling physician or protocol designee.

Exclusion criteria

Exclusion Criteria:

  • Participant is pregnant or planning to become pregnant or nursing (lactating) during the trial period.
  • Participant is enrolled in another trial and/or is taking investigational medication or treated with an investigational device ≤30-days prior to planned histotripsy procedure date.
  • In the Investigator's opinion, the subject has co-morbid disease(s) or condition(s) that would cause undue risk and preclude safe histotripsy treatment, including but not limited to interstitial lung disease, including history of interstitial lung disease or non-infectious pneumonitis.
  • Active disease that has required systemic treatment in the past 2 years (i.e., with use of disease modifying agents, or drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment. .
  • Participant has major surgical procedure or significant traumatic injury ≤2 weeks prior to the planned treatment or not fully recovered ( grade 1 or better) from side effects/complications of such procedure or trauma.
  • Participant has not recovered to Common Terminology Criteria for Adverse Events (CTCAE) grade 1 or better from any adverse effects (exceptions for alopecia, grade 2 neuropathy, grade 2 hypothyroidism, grade 2 hypoadrenalism) related to previous anti-cancer therapy. Please refer to inclusion criteria for lab-based enrollment parameters.
  • Participant has a history of bleeding disorders (e.g. von Willebrand disease) or subject is suspected to have a bleeding disorder.
  • Participant has uncorrectable coagulopathy.
  • In the opinion of the Investigator, histotripsy is not a treatment option for the subject.
  • Participant has a concurrent condition that, in the investigator's opinion, could jeopardize the safety of the subject or compliance with the protocol.
  • Participants' tumor(s) is not targetable per discretion of radiologist.
  • Participant has a known sensitivity to contrast media and cannot be adequately pre-medicated.
  • Participants' Target Tumor(s) has/have had prior locoregional therapy (e.g. ablation, embolization, radiation).
  • History of solid organ or bone marrow transplantation.
  • Patients with a prior or concurrent whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of the investigational regimen are not eligible for this trial.
  • Significant dementia or other mental condition that precludes the participant's ability to consent to the study.
  • Untreated central nervous system (CNS) . Screening of asymptomatic patients for is not required for enrollment.
  • administration within 28 days of planned initial dose of durvalumab.
Terms in these criteria, in plain language(25)

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.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

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.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

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.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

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.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

Allogeneic and autologous transplant

Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
12 participants (estimated)

Study arms

  • Experimental
    Participants with advanced iCCA

    3 research specific visits; pre-histotripsy treatment (C1D3), 14-day post histotripsy follow-up with biopsy (C1D22), and 30-day post histotripsy treatment adverse events assessment. The remaining visits, including the histotripsy treatment and durvalumab infusions, are a part of the study protocol but are part of the patient's ongoing medical care. Participants followed until progression up to 5 years.

    Device: Histotripsy · Drug: Durvalumab · Procedure: Biopsy

Interventions

  • DeviceHistotripsy

    Histotripsy will be performed using the Edison® System (HistoSonics, Inc.), which is FDA cleared for destruction of liver tissue using non thermal focused ultrasound. Performed on Cycle 1 Day 8 (C1D8) to treat the Target Tumor.

    Also known as: HistoSonics Edison System

  • Durvalumab is an immunotherapy drug and will be administered on day 1 of each 28-day cycle as per local standards. Dosing of maintenance durvalumab is 1500mg IV per FDA labeling with administration performed over 60 minutes as per standard clinical practice.

    Also known as: durvalumab maintenance

  • ProcedureBiopsy

    Two research biopsies are planned for cycle 1 day 3 and cycle 1 day 22, before and after histotripsy.

06

What researchers measure

Primary outcomes

  1. Number of Participants with Increase in Adaptive Immune System Response following histotripsy

    Increased adaptive immune system response following histotripsy in addition to ongoing maintenance durvalumab therapy will be interpreted as T cell infiltration, downregulation of myelosuppressive cell types, and upregulation of IFN-γ. This will be completed on the biopsy tissue (pre histotripsy in comparison to post histotripsy).

    Time frame: data collected cycle 1 day 3 (C1D3) and cycle 1 day 22 (C1D22) (up to about 30 days with allowable procedural windows)

  2. Percent of Participants Experiencing Immune-mediated Adverse Events within 30 days of histotrispy

    Time frame: data collected up to day 38 (30 days post-histotripsy)

Secondary outcomes

  1. Progression Free Survival (PFS)

    Time frame: up to 5 years

  2. Overall Survival (OS)

    Time frame: up to 5 years

  3. Treatment Efficacy

    Treatment Efficacy: defined as the lack of a nodular or mass-like area of enhancement within or along the edge of completed treated tumors assessed via MR or CT imaging at 30-days post procedure

    Time frame: data collected up to day 38 (30 days post-histotripsy)

  4. Hepatic toxicity profile of immunotherapy checkpoint with histotripsy reported as Incidence of Dose Limiting Toxicities per Protocol

    Hepatic toxicity profile of immunotherapy checkpoint with histotripsy will be assessed using CTCAE version 5 grading and summarized here by number of events.

    Time frame: data collected up to day 38 (30 days post-histotripsy)

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Yes — We would share the following de-identified data with HistoSonics, Inc.: histotripsy data, images, diagnosis, weight, height, age, and gender. The Department of Radiology Medical Imaging Research Support (MIRS) Radius team will serve as an honest broker for the sharing of coded data and images. Results from routine (safety) blood tests and imaging assessments will be placed in participants' EMR.

Supporting information: Study protocol, Statistical analysis plan

No publications or documents are linked to this record.

09

Timeline

3 registry updates since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedDate before it movedWhere the date was before it movedSimilar 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 Aug 2032, 69 months later.

Of 147 non-industry phase 2 interventional studies under Cholangiocarcinoma, half reached primary completion within 46 months of starting (the median), counting those still running; a quarter within 30 and three quarters within 65. This study's planned 69 months is above that.

Counting every sponsor, half of 173 studies reached it within 46 months; a quarter within 29 and three quarters within 65.

Start moved twice since we started tracking on Sep 25, 2026: Sep 2026 → Nov 2026, last on Oct 30, 2026.

Earlier changes are on the record history on ClinicalTrials.gov ↗

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

Registered
Jul 20, 2026
First posted
Aug 14, 2026
StartEst.
Nov 2026was Sep 2026
Primary completionEst.
Aug 2032
CompletionEst.
Aug 2032
Last update
Oct 30, 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.
Status
Not yet recruiting→Recruiting
changed Oct 13, 2026
Sites
University of Wisconsin is now Recruiting
Oct 13, 2026
Start date
Sep 2026→Nov 2026
moved 2 times, Sep 29, 2026 – Oct 30, 2026
Show all 3 updates
  1. Oct 30, 2026
    Start date Oct 2026→Nov 2026
    + 1 other change: verification date
  2. Oct 13, 2026
    Not yet recruiting→Recruiting
    University of Wisconsin is now Recruiting
  3. Sep 29, 2026
    Start date Sep 2026→Oct 2026

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
NCT07766187
Collaborators
HistoSonics, Inc.
Responsible party
Sponsor
First posted
Aug 14, 2026
Start date
Nov 2026 (estimated)
Primary completion
Aug 2032 (estimated)
Completion
Aug 2032 (estimated)
Last update
Oct 30, 2026

Study contacts

Cancer Connect
Contact
clinicaltrials@cancer.wisc.edu
800-622-8922
John Swietlik, MD
principal investigator · UW School of Medicine and Public Health

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Durvalumab

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