Impact of Pleural Manometry on the Assessment and Treatment of Malignant Pleural Effusion: A Pilot Clinical Trial

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

95 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-07-28

Study Completion Date

2026-07-31

Brief Summary

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The goal of this clinical trial is to find out if performing a pleural fluid drainage (thoracentesis) together with the measurement of pressure inside the chest (pleural manometry) during the same procedure can help doctors choose the best treatment for each patient with malignant pleural effusion.The main questions it aims to answer are:

* Is the use of pleural manometry associated with a higher success rate in managing malignant pleural effusion through pleurodesis?
* Can the use of pleural manometry help guide optimal therapeutic decision-making in malignant pleural effusion?

Researchers will compare the success of the chosen treatment in patients who undergo pleural manometry to those who do not, to see if pleural manometry helps improve treatment outcomes for malignant pleural effusion.

Participants will:

* Receive treatment according to the hospital's standard clinical practice for managing malignant pleural effusion.
* If assigned to the manometry group, they will undergo pleural manometry during their first thoracentesis.
* If the manometry results suggest that the lung can fully expand, they will be referred for pleurodesis-just as patients in the non-manometry group are.
* If the manometry results suggest that the lung cannot fully expand, pleurodesis will not be recommended due to the high risk of failure. Instead, placement of a tunneled pleural catheter will be advised to help control symptoms.

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Detailed Description

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Conditions

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Malignant Pleural Effusions (Mpe)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Investigators

Study Groups

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Standard Care Group (No Pleural Manometry)

Patients in this group will undergo standard management for malignant pleural effusion without pleural manometry. Therapeutic decisions such as pleurodesis or placement of a tunneled pleural catheter will be made based on clinical judgment and usual care protocols, without pleural pressure measurements.

Group Type NO_INTERVENTION

No interventions assigned to this group

Pleural Manometry Group

Patients in this group will undergo pleural manometry during the first thoracentesis. If pleural pressure measurements suggest that the lung expands, pleurodesis will be recommended. If the lung is non-expandable, pleurodesis will be avoided and a tunneled pleural catheter will be offered.

Group Type EXPERIMENTAL

Pleural manometry

Intervention Type DIAGNOSTIC_TEST

Pleural manometry will be performed during the first thoracentesis using a water column connected to the pleural drainage system. Pleural pressure will be measured at baseline and at intervals during fluid removal to evaluate lung expandability. The water column manometer allows estimation of pressure changes in real time. Based on the pressure curve and indicators of non-expandable lung (such as early pressure drop, plateauing, or sustained negative pressures), the treatment plan will be adapted. If adequate lung re-expansion is observed, pleurodesis will be considered. If the pressure pattern suggests a non-expandable lung, pleurodesis will be avoided due to the high risk of failure, and a tunneled pleural catheter will be recommended instead.

Interventions

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Pleural manometry

Pleural manometry will be performed during the first thoracentesis using a water column connected to the pleural drainage system. Pleural pressure will be measured at baseline and at intervals during fluid removal to evaluate lung expandability. The water column manometer allows estimation of pressure changes in real time. Based on the pressure curve and indicators of non-expandable lung (such as early pressure drop, plateauing, or sustained negative pressures), the treatment plan will be adapted. If adequate lung re-expansion is observed, pleurodesis will be considered. If the pressure pattern suggests a non-expandable lung, pleurodesis will be avoided due to the high risk of failure, and a tunneled pleural catheter will be recommended instead.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Histologically confirmed cancer and symptomatic patient with at least one of the following:

* Malignant pleural effusion confirmed by cytology.
* Recurrent exudative pleural effusion without an alternative diagnosis in the context of confirmed extrapleural cancer.
* Pleural effusion associated with hypermetabolic pleural thickening suggestive of malignant pleural effusion.

Exclusion Criteria

* Radiological evidence of non-expandable lung
* Life expectancy \<1 month (LENT score: high risk)
* Previous ipsilateral lobectomy or pneumonectomy
* Previous ipsilateral chemotherapy or radiotherapy
* Presence of infected pleural effusion
* Patient preference for tunneled pleural catheter placement
* Pregnancy
* Thrombocytopenia or coagulopathy
* Contraindication to general anesthesia or sedation

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No