Lattice Radiotherapy for Dose-Escalated Palliation of Bulky Tumors

April 28, 2026 updated by: Andrew Frankart, University of Cincinnati

A Phase 2 Study of Lattice Radiotherapy for Dose-Escalated Palliation of Bulky Tumors

The purpose of this research study is to determine if lattice radiation therapy (LRT) will provide better treatment for bulky (large) tumors than current standard of care radiotherapy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This will be a single-institution, single-arm Phase II trial with an anticipated total of 37 patients enrolled. Treatment will consist of 5 fractions of lattice radiation therapy delivered every other day. The primary endpoints will include the efficacy of lattice therapy as evaluated by ORR (CR or PR per RECIST criteria) at 60 days (2 months) post-treatment and safety. Toxicity will be evaluated at day 5 (+/- 2 days), day 15 (+/- 5 days), day 30 (+/- 5 days), and day 60 (+/- 7 days) post-completion of lattice therapy. This study will also include a translational analysis of the impact of lattice therapy on systemic immune responses.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
37

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

  • Name: Andrew Frankart, MD

Study Locations

  • United States
    • Ohio
      • Cincinnati, Ohio, United States, 45219
        • Recruiting
        • University of Cincinnati Medical Center
        • Contact:
          • Andrew Frankart, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Solid tumor malignancy with a clinical indication for radiation
  • Patients must have measurable disease
  • Target lesion(s) which are amenable to lattice therapy plan
  • When applicable, target lesion for radiation amenable to immobilization during delivery of radiotherapy
  • Age ≥18 years.
  • ECOG Performance status ≤2
  • Life expectancy greater than 3 months
  • Women of child-bearing potential and men must agree to avoid conception via abstinence (ideal) or a method of birth control (e.g., hormonal or barrier method of birth control) prior to study entry and for at least 30 days after completion of lattice therapy administration.
  • Ability to understand and the willingness to sign a written informed consent document

Exclusion Criteria:

  • Patients receiving cytotoxic chemotherapy or known radiosensitizing agents within 5 days before or after lattice therapy.
  • Patients with hematologic malignancies including lymphoma and leukemia as well as primary or metastatic central nervous system (CNS) malignancies.
  • Patients with a history of conditions which predispose them to increased radiation toxicity
  • Patients with known contraindications to radiation therapy
  • Patients with uncontrolled intercurrent illness
  • Pregnant women

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Lattice radiation therapy (LRT)
Lattice radiation therapy (LRT) : 5 fractions
Radiation: Lattice therapy (LRT)
5 Fractions LRT

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Overall Response Rate
Time Frame: 60 days post treatment
To evaluate the efficacy of lattice therapy in patients with bulky tumors, as measured by objective response rate (ORR) at 60 days post-treatment.
60 days post treatment
Adverse Events
Time Frame: Up to 60 days post-treatment
To characterize the safety profile and adverse events (AEs) of lattice therapy.
Up to 60 days post-treatment

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Overall Survival
Time Frame: 12 months post treatment
To assess overall survival (OS) following lattice therapy. Overall survival will be assessed via review of medical and vital records.
12 months post treatment
Patient-reported Quality of Life
Time Frame: 60 days post treatment
To determine patient-reported quality of life outcomes after lattice therapy via the Functional Assessment of Cancer Therapy - General - 7 Item Version (FACT-G7) tool as a measure of global quality of life. This is measured on 5 point Likert-type scale ranging from 0-4. Higher scores reflect better QOL.
60 days post treatment

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Impact of Lattice Therapy on Systemic Immune Anti-tumor Responses via analysis of peripheral blood samples.
Time Frame: Up to 5 days post-treatment
Blood will be collected pre-treatment, after the last lattice fraction, and at 5 days post-lattice therapy for analysis via flow cytometry. Differences in immune anti-tumor responses be assessed between timepoints/tumor types. Increased immune anti-tumor responses after therapy compared to baseline are anticipated.
Up to 5 days post-treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Cincinnati

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 2, 2024

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 6, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 14, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 16, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 4, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 28, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • UCCC-RT-23-01

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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