What the trial was testing
The trial enrolled 71 patients with pulmonary fibrosis. The study was sponsored by InSilico Medicine Hong Kong Limited 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 on the highest dose gained 98ml of lung capacity compared to a 20ml loss in the placebo group.
Nature medicine · 2025 · NCT05938920
These findings — that patients on the highest dose gained lung function instead of losing it — were published in the Nature medicine and represent the headline result of the study.
Researchers tracked outcomes across 71 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 decline in people with pulmonary fibrosis, a progressive scarring disease with no cure. This was an initial testing study and the pill is not yet FDA-approved. If you have pulmonary fibrosis, ask your doctor about open trials testing this or similar treatments.
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.
Open pulmonary fibrosis trials
Testing Drug Efficacy in Cystic Fibrosis Through N-of-1 Trials
The purpose of this study is to validate and utilize a personalized medicine approach to identify potential treatments with current FDA approved CFTR modifiers for non-approved CF gene mutations. The study will perform ex vivo testing of CFTR function and current marketed CFTR modulating drugs on expanded nasal cells at Cincinnati Children's Human Nasal Epithelium (HNE) Core Laboratory. The results will be confirmed and translated into bedside care through an N of 1 trial to determine effectiveness of treatment.
Zinc and Nicotinamide Riboside for Idiopathic Pulmonary Fibrosis
The goal of this clinical trial is to learn if a clinical trial for idiopathic pulmonary fibrosis (IPF) can recruit and retain participants from their home to study whether a combination of zinc and nicotinamide riboside can treat iIPF. The main questions are: Can the investigators recruit participants, and can participants complete study procedures without physically coming into specific clinical trial sites? Can people with IPF experience improvement in symptoms, quality of life, or functioning if they are take these supplements? The investigators will compare zinc and nicotinamide riboside to matched placebos (look-alike substances that contain no drug) to see if these supplements treat symptoms or lung function in people with IPF. Participants will: Take drug these supplements twice a day for 24 weeks. Complete pulmonary function testing and six minute walk tests with their own pulmonologists every 12 weeks. Complete a high resolution CT scan at the start and end of the study. Complete video study visits with the research team every 4 weeks. Complete surveys about their symptoms and the number of times they take the medication.