Clinical trial Recruiting at 1 site Phase2; Phase3 Interventional Ages 18 and up

Cell therapy combined with an endobronchial valve for severe emphysema

Official title: Bone Marrow-Derived Mesenchymal Stromal Cell Therapy Associated With Unidirectional Endobronchial Valve in Patients With Severe Pulmonary Emphysema: A Randomized Clinical Trial

Run by Hospital de Clinicas de Porto Alegre · NCT04018729 · Data updated 2026-11-12

This study is testing whether combining stem cell therapy with a special valve can help people with severe emphysema breathe better and improve their quality of life.

Quick facts

PhasePhase2; Phase3
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment34 (estimated)
SponsorHospital de Clinicas de Porto Alegre
Academic / other
Drugs / interventionsprednisone
Locations1 site (Porto Alegre, Rio Grande do Sul)
StatusRecruiting
StartedNovember 19, 2019
Main results expectedAugust 17, 2020
Study endsApril 30, 2029
Registry record updatedDecember 14, 2022
Trial IDNCT04018729 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults diagnosed with severe heterogeneous pulmonary emphysema who meet specific lung function criteria.

Probably not a fit

Patients with mild emphysema or those who do not meet the strict eligibility criteria 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 clinical trial investigates the use of mesenchymal stem cells in conjunction with the Zephyr Endobronchial Valve to treat patients with severe heterogeneous pulmonary emphysema. The study aims to assess the safety and efficacy of this combined approach in improving lung function and quality of life for patients suffering from chronic obstructive pulmonary disease (COPD). Participants will undergo a thorough evaluation to ensure they meet specific eligibility criteria, including lung capacity and function measurements. The trial is designed to provide insights into the potential benefits of regenerative medicine in managing severe emphysema.

Why it matters

Potential benefit: If successful, this treatment could significantly improve lung function and quality of life for patients with severe emphysema.

How similar studies have gone: Other studies have shown promise in using stem cell therapies for lung conditions, but this specific combination approach is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of severe heterogeneous pulmonary emphysema (at least 10% of total lung parenchyma or 25% of target lobe with density \< -950HU);
* Heterogeneity\> 15pp (difference of at least 15 percentage points of lung parenchyma with density greater than -950HU between the treated lobe(s) and the remaining lung on the same side)
* Estimates of low or non-existent collateral ventilation (fissure integrity\> 95% measured by VIDA Diagnostics or collateral ventilation measured by negative Chartis® System)
* Total lung capacity\> 100% of predicted
* Residual volume\> 175% of predicted
* FEV1 \<50% of predicted post-bronchodilator
* DLCO (diffusing capacity of the lungs for carbon monoxide) \<45% of predicted post-bronchodilator
* Body Mass Index (BMI) Greater than 18Kg/m2 and less than 35Kg/m2.
* Optimized clinical treatment
* Daily physical activities limitation
* Possibility of pulmonary rehabilitation
* Preserved ventricular function (LVEF\> 40%)
* Cessation of smoking ≥ 4 months
* Dyspnea MMRC ≥ 2

Exclusion Criteria:

* Homogeneous emphysema
* Estimated collateral ventilation observed on CT scanned by VIDA vision software (VIDA vision®, VIDA Diagnostics, Iowa-USA) - Fissure integrity on target lobe less than 75%.
* Use of continuous systemic corticosteroid therapy\> 20mg QD (quaque die, once a day) of prednisone (or equivalent)
* Active lung or extra pulmonary infection
* Coronary heart disease and/or severe ventricular dysfunction
* Significant renal or hepatic disease
* Immunosuppressive disease
* Rheumatologic or orthopedic disease limiting physical capacity;
* Cognitive inability to understand study procedures;
* Impression by clinical research investigators with a lifespan of less than a year1;
* Active smoking
* Malignant neoplasia with estimated prognosis of survival \<2 years
* Psychosocial problems
* Pregnancy

Where it's running

  • Hospital de Clinicas de Porto Alegre
    Porto Alegre, Rio Grande do Sul, Brazil
    Recruiting

Study contacts

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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.