Effect of Tetracycline Pleurodesis on Prevention of Primary Spontaneous Pneumothorax Recurrence

NCT ID: NCT03634605

Last Updated: 2018-08-21

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

COMPLETED

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-05-05

Study Completion Date

2016-11-10

Brief Summary

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Primary spontaneous pneumothorax (PSP) defines as presence of air in chest cavity occurs most commonly in young, tall, and smoker men without underlying lung disease.

Trends for PSP treatment tend toward more invasive procedures. Thoracotomy with pleurectomy and bullectomy is definitive treatment of PSP which significantly reduces recurrence probability. This procedure has been reported to cause high rate of morbidity and mortality. Thus video-assisted thoracoscopic surgery (VATS) has become the preferred method for treatment of PSP with recurrence rate of 5-10%. For persistent or recurrent cases, mechanical or chemical pleurodesis have been suggested.

Based on guidelines patients with large size of lesions in CT or with unstable condition should undergo surgical procedure for recurrence prevention but Patients with small lesion size and stable condition can be only observed. Conservative management of PSP is safe and effective, but as mentioned this method has high recurrence rate. On the other hand fear of recurrence can negatively affect patients' quality of life, so that some patients prefer surgical intervention to observation management. Also some studies recommend invasive treatments because of cost effectiveness of this methods.

As mentioned above, chemical pleurodesis is a usual method for treatment in patients with persistent or recurrent spontaneous pneumothorax. This method has been done using variety of chemical agents including tetracycline, minocycline, blood, and talc to irritate pleura. According to different studies tetracycline has the highest efficacy between irritant agents.

In current study, the investigators have aimed to assess tetracycline chemical pleurodesis through tube thoracostomy in prevention of spontaneous pneumothorax in symptom free patients with normal CT-scan following first episode of PSP.

Detailed Description

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Conditions

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Primary Spontaneous Pneumothorax

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Caregivers

Study Groups

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Case Group

Chemical pleurodesis for the this group was done using 2 grams of tetracycline 3% ointment (Aerotex®, Sina Daru, Tehran, Iran), 5 milliliter of lidocaine 2% and 50 milliliter normal saline that was injected through embedded thoracostomy tube

Group Type EXPERIMENTAL

Chemical pleurodesis

Intervention Type PROCEDURE

Tetracycline Topical Ointment

Intervention Type DRUG

Normal saline

Intervention Type DRUG

Lidocaine 2% Injectable Solution

Intervention Type DRUG

Control Group

Chemical pleurodesis for this group was done using 5 milliliter of lidocaine 2% and 50 milliliter normal saline that was injected through embedded thoracostomy tube

Group Type PLACEBO_COMPARATOR

Chemical pleurodesis

Intervention Type PROCEDURE

Normal saline

Intervention Type DRUG

Lidocaine 2% Injectable Solution

Intervention Type DRUG

Interventions

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Chemical pleurodesis

Intervention Type PROCEDURE

Tetracycline Topical Ointment

Intervention Type DRUG

Normal saline

Intervention Type DRUG

Lidocaine 2% Injectable Solution

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* First episode of primary spontaneous pneumothorax
* Do not have bullae in CT-scan
* No history of chest trauma or thoracic surgery

Exclusion Criteria

* History of chest trauma or thoracic surgery and start/quiting of smoking during past year.
* Not willing to participate in the study
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Isfahan University of Medical Sciences

OTHER

Sponsor Role lead

Responsible Party

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Leila Dehghani

Assistant professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Isfahan Unviersity of medical Sciences

Isfahan, , Iran

Site Status

Countries

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Iran

Other Identifiers

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395351

Identifier Type: -

Identifier Source: org_study_id

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