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Rein Therapeutics Announces Publication of Landmark LTI-03 Clinical Data in Nature Communications

$RNTXPress releaseAug 4, 2026, 8:00 AM ETRead the release

Rein Therapeutics published positive first-in-human clinical data for LTI-03 in Nature Communications, demonstrating safety and reduced markers of lung scarring in IPF patients. The randomized study showed significant reductions in key inflammatory markers at both 5 mg and 10 mg doses over 14 days. At the higher 10 mg dose, LTI-03 reduced a direct marker of collagen deposition and showed SP-D reduction levels comparable to approved IPF therapies after twelve weeks of treatment. The study also suggested the drug may help preserve the lung's repair cells.

Key figures

Drug Name
LTI-03
Phase Of Trial
Phase 1
Doses tested mg
[5,10]
Study duration days
14
Phase 2 expected enrollment
120

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