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Hepatocellular CarcinomaPhase 2NCT03199274

Perflutren Protein-Type A Microspheres and Contrast-Enhanced Ultrasound in Improving Response to Radioembolization Therapy in Patients With Liver Cancer

A Phase 2 study testing Yttrium-90 Microsphere Radioembolization, Perflutren Protein-Type A Microspheres and Dynamic Contrast-Enhanced Ultrasound Imaging in people with Hepatocellular Carcinoma, run by Thomas Jefferson University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This phase II trial studies how well perflutren protein-type A microspheres and contrast-enhanced ultrasound work in improving response to radioembolization therapy in patients with liver cancer. Ultrasound contrast agents, such as perflutren protein-type A microspheres, use gas microbubbles to improve image quality. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hepatocellular Carcinoma
What is being tested?
Yttrium-90 Microsphere Radioembolization, Perflutren Protein-Type A Microspheres and Dynamic Contrast-Enhanced Ultrasound Imaging
Could I receive a placebo?
No, everyone receives an active treatment
How many people
104 participants
Where
1 siteUnited States
Study dates
1 Jul 2017to 23 Jan 2025
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Be scheduled for sub-lobar radioembolization therapy of a previously untreated HCC mass < 6 cm visible on grayscale ultrasound
  • Be medically stable
  • If a female of child-bearing age, have a negative pregnancy test prior to each ultrasound exam
  • Have signed informed consent to participate in the study

Who cannot join

  • Females who are pregnant or nursing
  • Patients who are medically unstable, patients who are seriously or terminally ill, and patients whose clinical course is unpredictable; for example:
  • Patients on life support or in a critical care unit
  • Patients with unstable occlusive disease (e.g., crescendo angina)
  • Patients with clinically unstable cardiac arrhythmias, such as recurrent ventricular tachycardia
  • Patients with uncontrolled congestive heart failure (New York heart Association [NYHA] class IV)
Show all 15Show fewer
  • Patients with recent cerebral hemorrhage
  • Patients with known sensitivities to albumin, blood, or blood products
  • Patients with known hypersensitivity to perflutren
  • Patients with known cardiac shunts
  • Patients with known congenital heart defects
  • Patients with severe emphysema, pulmonary vasculitis, or a history of pulmonary embolism
  • Patients with respiratory distress syndrome
  • Patients with a history of bleeding disorders
  • Patients with bilirubin levels > 2 mg/dL

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Sidney Kimmel Cancer Center at Thomas Jefferson University

    Philadelphia, Pennsylvania, 19107

Other trials in United States

About this study

Official title: Ultrasound Microbubble Destruction and Perfusion Quantification for Improving Radioembolization Therapy of Hepatocellular Carcinoma

This phase II trial studies how well perflutren protein-type A microspheres and contrast-enhanced ultrasound work in improving response to radioembolization therapy in patients with liver cancer. Ultrasound contrast agents, such as perflutren protein-type A microspheres, use gas microbubbles to improve image quality. Using contrast-enhanced ultrasound imaging will "pop" these microbubbles and cause tumors to become more sensitive to radiation therapies.

Read the detailed description

PRIMARY OBJECTIVE:

  1. Characterize the ability of localized ultrasound contrast agent destruction to improve hepatocellular carcinoma (HCC) response to yttrium Y-90 (Y90) radioembolization.

SECONDARY OBJECTIVE:

  1. Determine if contrast-enhanced ultrasound estimated tumor perfusion can reliably predict HCC response to radioembolization 1-14 days post treatment.

OUTLINE: Patients are randomized to 1 of 2 groups.

GROUP I: Patients receive perflutren protein-type A microspheres intravenously (IV) over 10 minutes and undergo contrast-enhanced ultrasound (CEUS) over 60 minutes at 1-6 hours and at approximately 7 and 14 days after yttrium Y-90 radioembolization.

GROUP II: Patients undergo standard of care yttrium Y-90 radioembolization.

After completion of study treatment, patients are followed up at 1 month and at 3-4 months.

Being tested
Yttrium-90 Microsphere Radioembolization, Perflutren Protein-Type A Microspheres, Dynamic Contrast-Enhanced Ultrasound Imaging
Medical subject headings
Carcinoma, Hepatocellular

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Yttrium-90 Microsphere RadioembolizationProcedure or surgery

    Also called Yttrium Y 90 Microsphere Therapy, Yttrium-90 Radioembolization

    Undergo standard of care Y-90 radioembolization

  • Perflutren Protein-Type A MicrospheresDrug

    Also called Optison

    Given IV.

  • Dynamic Contrast-Enhanced Ultrasound ImagingProcedure or surgery

    Undergo CEUS

Study groups in NCT03199274
Study groupRoleWhat they receive
Group I (perflutren protein-type A microspheres, CEUS)ExperimentalPatients receive perflutren protein-type A microspheres IV over 10 minutes and undergo CEUS over 60 minutes at 1-6 hours and at approximately 7 and 14 days after yttrium Y-90 radioembolization.
Receives: Procedure: Yttrium-90 Microsphere Radioembolization; Drug: Perflutren Protein-Type A Microspheres; Procedure: Dynamic Contrast-Enhanced Ultrasound Imaging
Group II (standard of care)Active comparatorPatients undergo standard of care yttrium Y-90 radioembolization.
Receives: Procedure: Yttrium-90 Microsphere Radioembolization

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Treatment Response to Yttrium Y-90 Radioembolization

    Measured using the modified Response Evaluation Criteria in Solid Tumors. Will be tested with a non-parametric Mann- Whitney U-test of the difference in response distributions between control (radioembolization alone) and experimental group (ultrasound-triggered microbubble destruction [UTMD] + radioembolization). The outcome variable in this analysis, the modified Response Evaluation Criteria in Solid Tumors (mRECIST) score, is treated as an ordinal variable in this analysis. Tumor response assessed using modified Response Evaluation Criteria in Solid Tumors (mRECIST). The mRECIST scale includes four ordered categories:

    • Complete Response (best outcome)
    • Partial Response
    • Stable Disease
    • Progressive Disease (worst outcome)

    Measured: Up to 4 months

  2. Tumor Perfusion Measured by Contrast-enhanced Ultrasound Between Ultrasound-triggered Microbubble Destruction Pulses

    Perfusion will be characterized in terms of contrast replenishment time intensity curves fit with a 2-parameter exponential recovery curve. The relationship between the normalized perfusion values from this image processing and the patients' subsequent mRECIST scores in the UTMD + radioembolization group will be evaluated with Spearman's rank order correlation. Tumor perfusion measured as fractional vascularity (%) using contrast-enhanced ultrasound (CEUS). Values range from 0% (no perfusion) to 100% (maximal perfusion).

    Measured: Up to 14 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Jun 2017
  2. Study start1 Jul 2017
  3. Primary completion27 Feb 2024
  4. Study completion23 Jan 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
104 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03199274
Sponsor's protocol ID
17F.222
Other IDs
5R01CA238241, JT 10205
Status last verified
Dec 2025
First submitted
22 Jun 2017
Last updated
2 Jan 2026
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Wessner CE, Forsberg F, Lyshchik A, O'Kane P, Bradigan K, Liu JB, Delaney LJ, Anton K, Topper SR, Civan J, Maley W, Keith SW, Shaw CM, Eisenbrey JR. Microbubble-based Radiosensitization of Hepatocellular Carcinoma: Evaluation of Safety and Efficacy in a Phase II Randomized Trial. Radiology. 2025 Sep;316(3):e250083. doi: 10.1148/radiol.250083.

    PubMed 41025990

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Yttrium-90 Microsphere Radioembolization, Perflutren Protein-Type A Microspheres and Dynamic Contrast-Enhanced Ultrasound Imaging in people with Hepatocellular Carcinoma, run by Thomas Jefferson University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 20 Aug 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Treatment Response to Yttrium Y-90 Radioembolization (time frame: Up to 4 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03199274, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jan 2026.

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