Cryodevitalization for the Treatment of Early Stage Lung Cancer, CRYSTAL Trial
The CRYSTAL Study: Cryodevitalization Study for the Treatment of Early-Stage Lung Cancer
3 other identifiers
interventional
30
1 country
1
Brief Summary
This clinical trial studies side effects and best treatment time of cryodevitalization in treating patients with early stage (stage I or stage II) lung cancer. Cryodevitalization is a type of cryosurgery that uses a flexible probe (cryoprobe) to kill tumor cells by freezing them. It is delivered at the time of standard diagnostic robotic bronchoscopy. Using cryodevitalization may be safe, tolerable and/or effective in treating patients with early stage lung cancer.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Sep 2024
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 5, 2024
CompletedFirst Posted
Study publicly available on registry
September 19, 2024
CompletedStudy Start
First participant enrolled
September 27, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 30, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 31, 2026
February 2, 2026
January 1, 2026
1.8 years
September 5, 2024
January 29, 2026
Conditions
Outcome Measures
Primary Outcomes (3)
Maximum tolerated dose for cryodevitalization cycle duration
Will implement a modified Toxicity Probability Interval design. Each dose will be modeled using a Beta-Binomial model with the prior distribution, Beta (1,1). For each dose level, a 95% credible interval for the toxicity probability will be computed.
At time of surgery
Feasibility of bronchoscopically delivered cryodevitalization
Proportion of procedures that can be safely completed with full dose delivered
At time of surgery
Incidence of adverse events
Will be modeled using a Beta-Binomial model with the prior distribution, Beta (1,1). For each dose level, a 95% credible interval for the toxicity probability will be computed.
Up to 7 days post-cryosurgery
Secondary Outcomes (2)
Pathologic response
At time of surgical resection
Incidence of adverse events
From day 8 post-cryosurgery to surgical resection
Study Arms (1)
Treatment
EXPERIMENTALPatients undergo 3 freeze-thaw cycles of cryodevitalization over 30 seconds or 3, 5, or 7 minutes each during standard of care robotic bronchoscopy with biopsy on study. Patients then undergo standard of care surgical resection on study. Patients also undergo a chest x-ray on study as well as CT and tissue sample collection throughout the study.
Interventions
Eligibility Criteria
You may qualify if:
- Patients with a single pulmonary nodule with a size less than or equal to three centimeters (average long and short axis) confirmed as malignant intraprocedurally (rapid on-site evaluation with pathology assessment showing lung cancer or oligometastatic disease) without evidence of mediastinal involvement who require nodule biopsy prior to proceeding with surgical resection
- Nodules must be located in the outer 2/3 of the periphery of the lung, greater than 10 mm from the pleura and from large blood vessels or mediastinal structures to avoid injury to other visceral organs
- Patients deemed to have a surgical resection treatment option based on preoperative staging computed tomographic (CT), postoperative predicted forced expiratory volume in 1 second (FEV1) \> 40% and evaluation of medical comorbidities after discussion at multidisciplinary tumor board
- Age \> 18 years old
You may not qualify if:
- Target nodule is within the International Association for the Study of Lung Cancer (IASLC) "central zone" (including bronchial tree, major vessels, heart, esophagus, spinal cord and phrenic \& laryngeal nerves), or are \< 10 mm from the pleura
- Patients with an expected survival less than 6 months
- Patients with endobronchial lesions, concerning for malignancy, visualized during the initial bronchoscopic evaluation of the airways
- Patients with medically uncorrectable coagulopathy: abnormal platelet count \< 100 Ă— 10\^9/L or an international normalized ratio \> 1.5
- Patients with known pulmonary hypertension (PASP \[pulmonary artery systolic pressure\] \> 50mmHg)
- Patients who are currently prescribed anticoagulants, clopidogrel, or other platelet aggregation inhibitors
- Patients with medical comorbidities deemed high-risk for surgical resection
- Pregnant women
- Inability to provide informed consent
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Vanderbilt-Ingram Cancer Centerlead
- National Cancer Institute (NCI)collaborator
- Swim Across Americacollaborator
Study Sites (1)
Vanderbilt University/Ingram Cancer Center
Nashville, Tennessee, 37203, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Fabien Maldonado, MD
Vanderbilt University/Ingram Cancer Center
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Medicine, Thoracic Surgery
Study Record Dates
First Submitted
September 5, 2024
First Posted
September 19, 2024
Study Start
September 27, 2024
Primary Completion (Estimated)
July 30, 2026
Study Completion (Estimated)
August 31, 2026
Last Updated
February 2, 2026
Record last verified: 2026-01