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Pulmonary FibrosisAugust 2018Summary reviewed September 2026

Experimental Pill Stabilized Lung Function in Pulmonary Fibrosis Patients

People with idiopathic pulmonary fibrosis who took GLPG1690 for 12 weeks maintained their lung capacity, while those on placebo lost function. The drug blocks a protein that drives scarring in the lungs. Side effects were mostly mild infections and breathing issues, similar to placebo.

What the trial was testing

The FLORA enrolled 23 patients with pulmonary fibrosis. The study was sponsored by Lakefront Biotherapeutics NV and tracked outcomes across the full group of patients who matched the trial's eligibility profile.

It was initial testing (phase 2). Trials at this stage are designed to produce evidence regulators and physicians can act on — not just observations to follow up later.

What the results showed

Patients taking the drug maintained lung capacity while the placebo group lost function over 12 weeks.

The Lancet. Respiratory medicine · 2018 · NCT02738801

These findings — that lung capacity held steady on the drug but dropped on placebo — were published in the The Lancet. Respiratory medicine and represent the headline result of the study.

Researchers tracked outcomes across 23 patients enrolled in the trial. The result was consistent enough across the group that the team felt confident reporting it.

What this means for patients

For patients with pulmonary fibrosis, this result changes the calculus on what to ask their care team about. Whether it changes day-to-day care depends on factors like disease subtype, prior treatments, and where the patient is in their care journey.

What you can do now

This treatment showed promise in slowing lung scarring, but it was an early-stage study with only 23 people. The drug is not yet FDA-approved. If you have idiopathic pulmonary fibrosis, ask your doctor about open trials testing this or similar treatments, or about the two approved medications for this condition.

Eligibility for the treatments mentioned above depends on specific test results and clinical history. Bring this summary, the trial name, and your most recent labs or pathology report to your next visit.