Intrapleural Cryotherapy for Malignant Pleural Mesothelioma

January 26, 2022 updated by: Shanda Blackmon, M.D., M.P.H., Mayo Clinic

Pilot Study Evaluating the Effects of Intrapleural Cryotherapy on Tumor Infiltrating Lymphocytes in Malignant Pleural Mesothelioma Using Cryospray Therapy

Can neoadjuvant intrapleural cryotherapy be safely performed in patients with malignant pleural mesothelioma and will it trigger substantial systemic and local pro-inflammatory changes, resulting in the induction of anti-tumor immunity?

Study Overview

Status

Status

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

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

Patients that have been diagnosed, or are suspected of having malignant pleural mesothelioma, a cancer of the pleura, surgery may be considered as an attempt to treat the cancer. As part of the testing needed before surgery, a pleuroscopy or video camera examination of the pleura is necessary to establish the diagnosis and/or to evaluate the extent of the cancer. This study evaluates the effects of cryotherapy (freezing spray) on the ability of a patient's immune system to attack the cancer, as has been reported in other types of cancers. The purpose of this research is to gather information on the safety and effectiveness of cryotherapy in patients with malignant pleural mesothelioma. If successful, this study could provide support for future studies evaluating this new treatment for mesothelioma.

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 (Actual)

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.
17

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.
  • Not Applicable

Contacts and Locations

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

Study Locations

  • United States
    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic in Rochester

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

  • Subject provides informed consent
  • Subject is >18 years of age
  • Subject is deemed competent for making medical decisions
  • Subject is scheduled to undergo pleuroscopy as part of their standard care for pre-operative clinical staging of malignant pleural mesothelioma
  • A negative pregnancy test is required in women of child-bearing potential, as standard of care.
  • Subject is mentally capable of understanding study procedures.

Exclusion Criteria

Study subject has any disease or condition that interferes with safe completion of the study including:

  • Platelet count < 50K, coagulopathy defined as an International Normalized Ratio (INR) > 1.5
  • Anticoagulants such as clopidogrel, heparin, low-molecular weight heparin, warfarin or other novel anticoagulants have not been held for the standard time period published
  • Hemodynamic instability with systolic blood pressure <90 mmHg or heart rate > 120 beats/min, unless deemed to be stable with these values by the surgical or interventional pulmonary attending physicians.
  • Hypoxemia with pulse oximetry values <88% or partial pressure of oxygen in arterial blood (PaO2) < 60 on baseline oxygen requirements.
  • Concurrent participation in another study involving investigational drugs or investigational medical devices
  • Absence of or limited access to the pleural space during medical pleuroscopy.
  • Inability to read and understand the necessary study documents.

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: Non-Randomized
  • Interventional Model: Parallel 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: Cryotherapy
Cryospray and biopsies
Procedure: Cryotherapy
Subjects will have their blood drawn prior to undergoing a staging pleuroscopy. During the pleuroscopy pleural fluid will be collected as well as pleural biopsies (4 to 8 research biopsies). The procedure will involve 2 to 3 applications of cryospray on the location of the disease. After establishing cryofrost over a minimum of a 2 x 2 cm area, cryospray will continue for 15 to 20 seconds, allow a thaw period of 60 seconds followed by one to two repeats in the same location before proceeding onto the next location. We will treat a minimum of 6 x 6 cm area in aggregate. The freezing procedure will be video-recorded and freezing locations and time will be recorded. Approximately, 14 days following the staging pleuroscopy patients will undergo surgical treatment as per standard of care, with repeat blood, pleural fluid and tissue collection.
Other: Control
Biopsies
Other: Control
Subjects will have their blood drawn prior to undergoing a staging pleuroscopy. During the pleuroscopy pleural fluid will be collected as well as pleural biopsies (4 to 8 research biopsies). Approximately, 14 days following the staging pleuroscopy patients will undergo surgical treatment as per standard of care, with repeat blood, pleural fluid and tissue collection

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
Number of Participants with Adverse Events
Time Frame: 1 month
Participants will be monitored for any adverse events that may have resulted from the pleuroscopy procedure.
1 month
Mean Number of Tumor Infiltrating Immune Cells as Measured by Immunohistochemistry on Participant Tissue Samples
Time Frame: 14 days
14 days

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.
Mayo Clinic

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
CSA Medical, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Shanda H Blackmon, MD, MPH, Mayo Clinic

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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

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.
July 1, 2015

Primary Completion (Actual)

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.
February 26, 2021

Study Completion (Actual)

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.
February 26, 2021

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 14, 2015

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.
June 3, 2015

First Posted (Estimate)

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.
June 8, 2015

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.
February 9, 2022

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.
January 26, 2022

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.
January 1, 2022

More Information

Terms related to this study

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.
  • 14-008715

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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