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Clinical Trial Summary

The purpose of the study is to evaluate if inhaled granulocyte-macrophage colony stimulating factor delay the increase in alveolar-arterial oxygen difference, compared to no treatment, for adult patients with mild-to-moderate autoimmune pulmonary alveolar proteinosis in China over a two-year period.


Clinical Trial Description

Autoimmune pulmonary alveolar proteinosis (PAP, previously known as idiopathic PAP) is a rare interstitial lung disease elicited by the formation of autoantibodies which neutralize the activity of granulocyte-macrophage colony-stimulating factor (GM-CSF) which decreases macrophage clearance of surfactant.

Currently, the standard treatment strategy for PAP is whole lung lavage (WLL),which is invasive and has limitations. Inhaled GM-CSF therapy became a new option for PAP patients not only because of its effectiveness and safety, but it is convenient way for patients who are reluctant to do operation as well. We are planning to prospectively evaluate if inhaled granulocyte-macrophage colony stimulating factor would delay the increase in alveolar-arterial oxygen difference (A-aDO2, which is the most sensitive factor in evaluating APAP5), compared to placebo, for patients with mild-to-moderate autoimmune pulmonary alveolar over a two-year period.

A total of 42 subjects with APAP who meet the inclusion criteria will be enrolled at Peking Union Medical College Hospital and Nanjing Drum Tower Hospital. After observe APAP patients for 3 months to rule out patients who resolved spontaneously, the participants will undergo randomization (by random number table)and stratified into two different groups by their DSS. Then they will be treated by GM-CSF (using nebulizer, 150ug bid) every other week or no treatment for 6 months, and will be followed on an outpatient basis at 2 weeks, and 1, 3, 6, 9, 12, 15, 18, 21 and 24 months after initiation of therapy. ;


Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT02243228
Study type Interventional
Source Peking Union Medical College Hospital
Contact Kai-Feng Xu, M.D.
Phone 10-69155039
Email kaifeng.xu@gmail.com
Status Recruiting
Phase Phase 2
Start date August 2014
Completion date August 2017

See also
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Active, not recruiting NCT04544293 - Clinical Trial of Inhaled Molgramostim Nebulizer Solution in Autoimmune Pulmonary Alveolar Proteinosis (aPAP) Phase 3
Completed NCT02702180 - Efficacy and Safety of Inhaled Molgramostim (rhGM-CSF) in Autoimmune Pulmonary Alveolar Proteinosis Phase 2
Completed NCT00901511 - Inhaled GM-CSF Therapy of Autoimmune PAP Phase 2
Completed NCT03006146 - Evaluation of a Single Dose of Inhaled Sargramostim in Patients With Autoimmune Pulmonary Alveolar Proteinosis Phase 1
Not yet recruiting NCT06431776 - Inhaled Molgramostim in Pediatric Participants With Autoimmune Pulmonary Alveolar Proteinosis (aPAP). Phase 3
Completed NCT03231033 - Pioglitazone Therapy of Autoimmune Pulmonary Alveolar Proteinosis Autoimmune Pulmonary Alveolar Proteinosis Phase 1
Completed NCT03531996 - The Longitudinal Evaluation of Autoimmune Pulmonary Alveolar Proteinosis
Completed NCT03482752 - Safety Extension Trial of Inhaled Molgramostim in Autoimmune Pulmonary Alveolar Proteinosis Phase 3