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Solitary Pulmonary NoduleNCT02983903

Cryobiopsy Versus Forceps Biopsy for Pulmonary Lesions

A study testing transbronchial biopsy in people with Solitary Pulmonary Nodule and Multiple Pulmonary Nodules, run by University of Pennsylvania at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Purpose: Patients with peripheral lung nodules require evaluation for lung cancer. Our aim is to assess the diagnostic yield of a new technique, transbronchial cryobiopsies, in patients at risk for lung cancer. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
transbronchial biopsy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
31 participants
Where
1 siteUnited States
Study dates
Nov 2016to 2 Mar 2020
Phase
Interventional
Are there results?
None posted in the registry

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

  • Age >/= 18
  • At least one peripheral lung lesion >8mm documented on CT scan referred for diagnostic bronchoscopy
  • Subject is able to undergo informed consent

Who cannot join

  • Coagulopathy (platelet count < 50,000, INR > 1.5) detected on blood testing done within 6 weeks of the procedural visit
  • Lesion associated with a prominent vessel evident on CT scan
  • Pure ground glass lesion
  • Fibrotic interstitial lung abnormalities on chest CT
  • Bullous emphysema in region of nodule
  • Supplemental oxygen utilization at baseline
  • BMI > 40
  • End stage renal disease

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

Other trials in United States

About this study

Official title: An Un-blinded, Intra-patient Comparison of Transbronchial Forceps Biopsy and Cryobiopsy for Peripheral Pulmonary Lesions

Purpose: Patients with peripheral lung nodules require evaluation for lung cancer. Our aim is to assess the diagnostic yield of a new technique, transbronchial cryobiopsies, in patients at risk for lung cancer. Target population: Patients referred for bronchoscopy and lung biopsies as a part of their work up for peripheral lung lesions. Procedures: Patients enrolled will have forceps transbronchial biopsies followed by transbronchial cryobiopsies for their lung lesion during bronchoscopy.

Being tested
transbronchial biopsy
Medical subject headings
Solitary Pulmonary Nodule, Multiple Pulmonary Nodules

What participants receive

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

  • transbronchial biopsyProcedure or surgery

Study groups in NCT02983903
Study groupRoleWhat they receive
Single intervention arm - transbronchial biopsyExperimentalPatients enrolled in this single arm study will have lung nodules biopsied by traditional forceps followed by transbronchial cryobiopsy
Receives: Procedure: transbronchial biopsy

What is being measured

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

  1. The increase in sensitivity for diagnosing lung cancer with the addition of cryobiopsy to standard forceps biopsy for a suspicious lung nodule.

    Sensitivity for cancer is defined as true positives / (true positives + false negatives) with respect to diagnosing malignancy. If the bronchoscopic procedure fails to diagnose malignancy, the gold standard will be the results of any further, more invasive testing that is clinically indicated to evaluate the nodule.

    Measured: 1 year

Secondary outcomes (2)
  1. The increase in sensitivity for diagnosing a specific benign lung disease with the addition of cryobiopsy to standard forceps biopsy for a suspicious lung nodule.

    Sensitivity is defined as true positives / (true positives + false negatives) with respect to diagnosing a specific benign condition that is thought to represent the lung nodule seen on CT scan. If the bronchoscopic procedure fails to diagnose a specific benign condition, the gold standard will be the results of any further, more invasive testing and stable follow-up imaging at 1 year.

    Measured: 1 year

  2. The number of participants with pneumothorax or significant bleeding related to the addition of transbronchial cryobiopsy to standard forceps biopsy.

    A chest X-ray and ultrasound will be done to check for pneumothorax after standard forceps biopsy and after the addition of transbronchial cryobiopsy. Bleeding will be measured with a standardized scale (grade 0 = traces of blood not requiring suctioning; grade 1 = bleeding requiring suction to clear; grade 2 = bleeding requiring wedging of the biopsied segment with the flexible bronchoscope and/or iced saline/epinephrine; grade 3 = bleeding requiring further intervention such as balloon occlusion or inflation of the bronchial blocker; grade 4 = bleeding resulting in airway obstruction and acute hypoxemic respiratory failure, cardiopulmonary instability, transfusion of packed RBCs, and/or admission to the ICU) both after forceps biopsy and again after transbronchial cryobiopsy.

    Measured: 1 year

Timeline

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

  1. First posted6 Dec 2016 (estimated)
  2. Study startNov 2016
  3. Primary completion2 Mar 2020
  4. Study completion2 Mar 2020

Why it stopped: Interim analysis also showed a lack of benefit in the experimental arm.

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 N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02983903
Sponsor's protocol ID
IRB # 825506
Status last verified
Mar 2020
First submitted
21 Nov 2016
Last updated
25 Mar 2020
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing transbronchial biopsy in people with Solitary Pulmonary Nodule and Multiple Pulmonary Nodules, run by University of Pennsylvania 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 3 inclusion and 8 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: stopped early, as of the sponsor's last update on 25 Mar 2020. 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.

Are results available for this study?

The study was stopped early (reason given: Interim analysis also showed a lack of benefit in the experimental arm.). Results are not available in the source record.

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?

The increase in sensitivity for diagnosing lung cancer with the addition of cryobiopsy to standard forceps biopsy for a suspicious lung nodule. (time frame: 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 25 Mar 2020.

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