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Benign Liver Optimal Core Study (Tissue Acquisition Comparison in Benign Liver Disease)

Comparison of 2 Techniques Using EUS Guided Liver Biopsies Via 19g CORE Biopsy Needle to Obtain Optimal Core Liver Biopsies in Benign Disease

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03245580
Acronym
BLOCS
Enrollment
153
Registered
2017-08-10
Start date
2018-03-08
Completion date
2020-09-15
Last updated
2022-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Liver Diseases

Brief summary

The primary purpose of this prospective, randomized, multicenter study is to evaluate and compare the amount and quality of tissue samples yielded in a liver biopsy comparing 2 different techniques of EUS guided CORE liver biopsy for benign disease. The two techniques: modified Wet suction and Slow pull technique of collecting tissue from a liver biopsy via Endoscopic Ultrasound (EUS).

Detailed description

Each subject will have a biopsy performed via one of 2 different techniques: modified wet suction, or slow pull technique. A randomization process will determine which technique. Each subject shall undergo 2 passes (2 cores of tissue will be obtained - ideally from the right and left lobe of the liver. Quality of tissue obtained via the 2 different techniques will be evaluated by number of fragments, length of specimens and number of tracts observed by the local pathologist and compared between the tissues obtained from the two techniques. .

Interventions

DIAGNOSTIC_TESTCore Liver Biopsy

Diagnostic EUS examination followed by liver biopsy to obtain core sample in benign liver disease.

Sponsors

Parkview Health
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Intervention model description

prospective, randomized, multicenter study

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects that plan to undergo a liver biopsy via EUS to confirm possible underlying liver disease or to determine stage, grade and presence of fibrosis for suspected benign etiology. * History of abnormal LFTs * Documented history of chronic liver disease * Question of underlying liver disease as cause of abnormal imaging or symptoms which may be attributed to liver disorder * Fatty liver disease * Subjects 18 years of age or older * Subject must be able to hold anticoagulants as per institutional standard of care * Subjects must be deemed physically able to undergo anesthesia. This includes either Monitored Anesthesia Care (MAC) or general anesthesia. * Subjects (or the subjects Legally Authorized Representative \[LAR\]) that have agreed to participate in the study and have signed Informed Consent * Women of child bearing potential who are not pregnant as proven by a negative pregnancy test may be included.

Exclusion criteria

* Subjects that are unable to tolerate anesthesia for the procedure * Subjects 17 or under * Subjects whose anticoagulants cannot be held * Subjects who cannot have or refuse EUS guided procedure * Subjects who are pregnant * INR \>1.5 * Platelets 50,000 or less * Subjects requiring control of bleeding on initial upper endoscopy * Subjects requiring endoscopic mucosal resection * Subjects with large volume ascites * Subjects requiring pancreatic biopsies

Design outcomes

Primary

MeasureTime frameDescription
Pathological Yield FragmentationAt day 7 post biopsyTo determine if there is a significant difference in pathological yield as determined by fragmentation of portal tracts of the biopsy sample between a modified wet suction, and slow pull techniques in obtaining CORE of histologic tissue. Pathological yield will be measured by assessment of portal tracts fragmentation by designated pathologists with experience in liver biopsy specimens.
Pathological Yield LengthAt time of completion of pathology reportTo determine if there is a significant difference in pathological yield as determined by length of portal tracts of the biopsy sample between a modified wet suction, and slow pull techniques in obtaining CORE of histologic tissue. Length of portal tracts will be measured in mm by designated pathologists with experience in liver biopsy assessment techniques.
Pathological Yield QuantityAt time of completion of pathology reportTo determine if there is a significant difference in pathological yield as determined by number of portal tracts of the biopsy sample between a modified wet suction, and slow pull techniques in obtaining CORE of histologic tissue. The number of portal tracts will be assesses and tallied by designated pathologists with experience in the assessment of liver biopsies.

Secondary

MeasureTime frameDescription
ComplicationsComplications occurring at time of consent, at procedure time and at day 7 post procedureTracking any complications that may be associated with each technique. Complications will be assessed and tracked following CTCAE V4.

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm 1 -Modified Wet Suction
Intervention:Procedure Core Liver Biopsy Technique: Modified Wet Suction Core Liver Biopsy: Diagnostic EUS examination followed by liver biopsy to obtain core sample in benign liver disease.
75
Arm 2- Slow Pull
Intervention: Procedure Core Liver Biopsy Technique: Slow Pull Core Liver Biopsy: Diagnostic EUS examination followed by liver biopsy to obtain core sample in benign liver disease.
78
Total153

Baseline characteristics

CharacteristicArm 1 -Modified Wet SuctionArm 2- Slow PullTotal
Age, Continuous55.1 years56.6 years55.85 years
Anticoagulants/Antiplatelet Therapy20 Participants17 Participants37 Participants
Diabetic27 Participants23 Participants50 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants6 Participants10 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
70 Participants71 Participants141 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants2 Participants
Hypertension37 Participants39 Participants76 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
2 Participants1 Participants3 Participants
Race (NIH/OMB)
Black or African American
3 Participants2 Participants5 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants8 Participants12 Participants
Race (NIH/OMB)
White
65 Participants66 Participants131 Participants
Region of Enrollment
United States
75 participants76 participants153 participants
Sex: Female, Male
Female
60 Participants44 Participants104 Participants
Sex: Female, Male
Male
15 Participants34 Participants49 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 750 / 78
other
Total, other adverse events
13 / 7510 / 78
serious
Total, serious adverse events
7 / 752 / 78

Outcome results

Primary

Pathological Yield Fragmentation

To determine if there is a significant difference in pathological yield as determined by fragmentation of portal tracts of the biopsy sample between a modified wet suction, and slow pull techniques in obtaining CORE of histologic tissue. Pathological yield will be measured by assessment of portal tracts fragmentation by designated pathologists with experience in liver biopsy specimens.

Time frame: At day 7 post biopsy

ArmMeasureGroupValue (MEAN)
Arm 1 -Modified Wet SuctionPathological Yield FragmentationLength of Longest Fragment- Right Lobe13 mm
Arm 1 -Modified Wet SuctionPathological Yield FragmentationLength of Longest Fragment- Left Lobe14 mm
Arm 2- Slow PullPathological Yield FragmentationLength of Longest Fragment- Left Lobe11 mm
Arm 2- Slow PullPathological Yield FragmentationLength of Longest Fragment- Right Lobe10 mm
Primary

Pathological Yield Length

To determine if there is a significant difference in pathological yield as determined by length of portal tracts of the biopsy sample between a modified wet suction, and slow pull techniques in obtaining CORE of histologic tissue. Length of portal tracts will be measured in mm by designated pathologists with experience in liver biopsy assessment techniques.

Time frame: At time of completion of pathology report

ArmMeasureGroupValue (MEAN)
Arm 1 -Modified Wet SuctionPathological Yield LengthTotal Length of Fragments-Right Lobe38 mm
Arm 1 -Modified Wet SuctionPathological Yield LengthTotal Length of Fragments - Left Lobe46.5 mm
Arm 2- Slow PullPathological Yield LengthTotal Length of Fragments - Left Lobe34.5 mm
Arm 2- Slow PullPathological Yield LengthTotal Length of Fragments-Right Lobe28 mm
Primary

Pathological Yield Quantity

To determine if there is a significant difference in pathological yield as determined by number of portal tracts of the biopsy sample between a modified wet suction, and slow pull techniques in obtaining CORE of histologic tissue. The number of portal tracts will be assesses and tallied by designated pathologists with experience in the assessment of liver biopsies.

Time frame: At time of completion of pathology report

ArmMeasureGroupValue (MEAN)
Arm 1 -Modified Wet SuctionPathological Yield QuantityTotal Number of Portal Tracts Left Lobe16 Number of portal tracts
Arm 1 -Modified Wet SuctionPathological Yield QuantityTotal Number of Portal Tracts Right Lobe14 Number of portal tracts
Arm 2- Slow PullPathological Yield QuantityTotal Number of Portal Tracts Left Lobe11.5 Number of portal tracts
Arm 2- Slow PullPathological Yield QuantityTotal Number of Portal Tracts Right Lobe12 Number of portal tracts
Secondary

Complications

Tracking any complications that may be associated with each technique. Complications will be assessed and tracked following CTCAE V4.

Time frame: Complications occurring at time of consent, at procedure time and at day 7 post procedure

ArmMeasureGroupValue (NUMBER)
Arm 1 -Modified Wet SuctionComplicationsMinor Adverse Events Grade 110 Number of Adverse Events
Arm 1 -Modified Wet SuctionComplicationsMinor Adverse Events Grade 21 Number of Adverse Events
Arm 1 -Modified Wet SuctionComplicationsMinor Adverse Events Grade 32 Number of Adverse Events
Arm 1 -Modified Wet SuctionComplicationsSerious Adverse Events Grade 17 Number of Adverse Events
Arm 2- Slow PullComplicationsSerious Adverse Events Grade 12 Number of Adverse Events
Arm 2- Slow PullComplicationsMinor Adverse Events Grade 14 Number of Adverse Events
Arm 2- Slow PullComplicationsMinor Adverse Events Grade 32 Number of Adverse Events
Arm 2- Slow PullComplicationsMinor Adverse Events Grade 24 Number of Adverse Events

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026