Recruiting
Phase 2

Histotripsy & Durvalumab

Sponsor:

University of Wisconsin, Madison

Code:

NCT07766187

Conditions

Intrahepatic Cholangiocarcinoma

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

Histotripsy

Durvalumab

Biopsy

Study Details

Brief 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.

Conditions

Intrahepatic Cholangiocarcinoma

Study ID

NCT07766187

Start date

Oct, 2026

Status verified date

Aug, 2026

Completion date

Aug, 2032

Anticipated

Primary completion date

Aug, 2032

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Inclusion Criteria:

  • Participant diagnosed with histologically 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 first line 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 biopsy 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 Child-Pugh Score of A or B (up to B8).
  • Participant has an Eastern Cooperative Oncology Group 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: Alanine transaminase (ALT) and Aspartate transaminase (AST) <2.5x upper limit of normal (ULN) and/or bilirubin <2.5 ULN.
  • Renal function: serum creatinine <2x ULN.
  • Hematologic function: Absolute neutrophil count >1,000/uL and platelet >50,000/uL, hemoglobin >8.0 g/dL.
  • Participant has an International Normalized Ratio (INR) score of <3.0, ≤7 days prior to the planned histotripsy procedure date.
  • Persons of childbearing potential 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 contraception from the time of informed consent, 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:

  • Participant is pregnant or planning to become pregnant or nursing (lactating) during the trial period.
  • Participant is enrolled in another investigational 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 autoimmune disease that has required systemic treatment in the past 2 years (i.e., with use of disease modifying agents, corticosteroids or immunosuppressive 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 (CTCAE 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 allogeneic bone marrow transplantation.
  • Patients with a prior or concurrent malignancy 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) metastasis. Screening of asymptomatic patients for CNS metastasis is not required for enrollment.
  • Live vaccine administration within 28 days of planned initial dose of durvalumab.

Study Design

Enrollment

12 participants

Anticipated

Intervention Model

Single group

Primary purpose

Treatment

Interventions and Outcome Measures

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.

Interventions

Histotripsy

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.

Durvalumab

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.

Biopsy

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

Primary outcome measure

  • Number of Participants with Increase in Adaptive Immune System Response following 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) ]
  • 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) ]

Central Contacts and Locations

Central contacts

Cancer Connect

800-622-8922clinicaltrials@cancer.wisc.edu

Locations

University of Wisconsin

Recruiting

Madison, Wisconsin, United States, 53706

More Information

Sponsor

University of Wisconsin, Madison

Last update posted

Oct 13, 2026

Last verified

Aug, 2026

Keywords

  • iCCA
  • histotripsy
  • tumor microenvironment
  • immunotherapy

Trial information was received from ClinicalTrials.gov and was last updated on 2026-10-14. This information was provided to ClinicalTrials.gov by University of Wisconsin, Madison on 2026-10-13. Recruitment status is synced daily from ClinicalTrials.gov and may not reflect the sponsor's current status. Confirm during your call.