NCT07040241

Brief Summary

This study aimed to evaluate the diagnostic yield and safety of confocal laser endomicroscopy and ultrasound-guided pleural biopsy in diagnosing patients with unknown pleural effusion.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
260

participants targeted

Target at P75+ for not_applicable

Timeline
14mo left

Started Jul 2025

Typical duration for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress43%
Jul 2025Jul 2027

First Submitted

Initial submission to the registry

June 8, 2025

Completed
19 days until next milestone

First Posted

Study publicly available on registry

June 27, 2025

Completed
4 days until next milestone

Study Start

First participant enrolled

July 1, 2025

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2027

Last Updated

June 27, 2025

Status Verified

June 1, 2025

Enrollment Period

2 years

First QC Date

June 8, 2025

Last Update Submit

June 26, 2025

Conditions

Keywords

Pleural effusionConfocal laser endomicroscopyPleural biopsy

Outcome Measures

Primary Outcomes (1)

  • Diagnostic yield

    The proportion of all individuals undergoing the diagnostic procedure under evaluation in whom a specific diagnosis is established based on the consensus definition.

    The day 7 after patients received CLE-assisted ultrasound-guided pleural biopsy.

Study Arms (2)

CLE-assisted ultrasound-guided pleural biopsy

EXPERIMENTAL

The patients in this arm will receive the CLE-assisted ultrasound-guided pleural biopsy

Procedure: Confocoal laser endomicroscopy-assisted ultrasound-guided pleural biopsy

Ultrasound-guided pleural biopsy

PLACEBO COMPARATOR

The patients in this arm will receive the ultrasound-guided pleural biopsy

Procedure: Ultrasound-guided pleural biopsy

Interventions

Using the probe-based confocal laser endomicroscopy to detect the pleural, and ensure the biopsy location. Then, use the pleural biopsy tool to complete the pleural biopsy. The whole procession will under the ultrasound guidance.

Also known as: CLE-assisted ultrasound-guided pleural biopsy
CLE-assisted ultrasound-guided pleural biopsy

Using ultrasound to detect the biopsy site and perform pleural biopsy.

Ultrasound-guided pleural biopsy

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult patients with exudative pleural effusion of unknown origin
  • Patients with negative pleural fluid cytology results
  • Patients diagnosed with a probable malignant pleural effusion but without a definite diagnosis and requiring further pathological evaluation
  • Patients who are fully informed of the purpose and method of the study, agree to participate in the study, and sign an informed consent form

You may not qualify if:

  • Inability or refusal to undergo UGBx
  • Patients with any contraindications for pleural biopsy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Pleural Effusion

Condition Hierarchy (Ancestors)

Pleural DiseasesRespiratory Tract Diseases

Central Study Contacts

Mingming Deng, Doctor

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Deputy Director of the Department of Pulmonary and Critical Care Medicine

Study Record Dates

First Submitted

June 8, 2025

First Posted

June 27, 2025

Study Start

July 1, 2025

Primary Completion (Estimated)

July 1, 2027

Study Completion (Estimated)

July 1, 2027

Last Updated

June 27, 2025

Record last verified: 2025-06