Clinical trial Recruiting at 1 site Observational Ages 18 and up

Comparing indwelling pleural catheters with or without doxycycline for treating fluid build-up in the lungs

Official title: A Prospective Observational Cohort Study of Indwelling Pleural Catheters Versus Indwelling Pleural Catheters Plus Doxycycline Pleurodesis for Treatment of Malignant Pleural Effusions

Run by M.D. Anderson Cancer Center · NCT03465774 · Data updated 2026-11-12

This study is testing if adding doxycycline to the use of indwelling pleural catheters can help people with fluid build-up in the lungs feel better and improve their quality of life.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment208 (estimated)
SponsorM.D. Anderson Cancer Center
Academic / other
Locations1 site (Houston, Texas)
StatusRecruiting
StartedMarch 8, 2018
Main results expectedDecember 1, 2028
Study endsDecember 1, 2028
Registry record updatedSeptember 14, 2026
Trial IDNCT03465774 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include outpatients with malignant pleural effusions who are undergoing IPC placement and can provide informed consent.

Probably not a fit

Patients with benign pleural diseases or those who have previously received intrapleural therapy on the same side may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to gather preliminary data on the effectiveness of indwelling pleural catheters (IPCs) alone versus IPCs combined with doxycycline for treating malignant pleural effusions (MPE). Patients will be assigned to one of two groups: one receiving IPC placement followed by doxycycline administration, and the other receiving only IPC placement. The study will monitor patients for treatment outcomes and quality of life over a follow-up period of up to one year. The goal is to determine if the addition of doxycycline can reduce treatment duration.

Why it matters

Potential benefit: If successful, this approach could lead to more effective and quicker treatment options for patients suffering from malignant pleural effusions.

How similar studies have gone: While the use of IPCs is common, the specific combination with doxycycline for this purpose is less established, indicating a novel approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Outpatients with MPE undergoing IPC placement
* Sufficient mental capacity to provide informed consent and answer Short-Form Six-Dimension health index (SF-6D) and Borg score questions
* Inpatients that are expected to be discharged within 5 days of receiving an indwelling pleural catheter

Exclusion Criteria:

* Patients undergoing pleurodesis for benign disease (e.g., spontaneous pneumothorax)
* Inability or unwillingness to give informed consent
* Inability to perform phone call and clinical follow-up at MD Anderson Cancer Center (MDACC)
* Pregnancy
* Previous intrapleural therapy for MPE on the same side
* Eastern Cooperative Oncology Group (ECOG) of 4 and life expectancy =\< 2 weeks
* Doxycycline allergy
* Extensive loculations or hydropneumothorax or other contraindication to pleurodesis
* Chylous effusions associated with malignant disease

Where it's running

  • M D Anderson Cancer Center
    Houston, Texas, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.