Full Press Release Details
PITTSBURGH, Sept. 18, 2025 (GLOBE NEWSWIRE) -- Lipella Pharmaceuticals Inc. (Nasdaq : LIPO) ("Lipella," "we," "our," or the "Company"), a clinical-stage biotechnology company transforming care with innovative mucosal delivery solutions, today announced positive final results from its completed Phase 2a multicenter, dose-ranging study evaluating LP-10, a proprietary liposomal tacrolimus oral rinse, in patients with symptomatic oral lichen planus (OLP).
The study met its primary safety endpoint and achieved statistically significant improvements across all efficacy measures at the 4-week timepoint. These results support LP-10‘s potential to become the first FDA-approved therapy for OLP, a chronic inflammatory condition that affects an estimated 6 million Americans, with no approved treatment options.
"We believe these compelling results validate LP-10's potential to address a large, underserved patient population,” said Jonathan Kaufman, CEO and co-founder of Lipella. "The combination of excellent safety, minimal systemic absorption, and robust efficacy across multiple validated endpoints positions LP-10 as a first-in-class therapy. Based on these data, we are preparing to advance LP-10 into a pivotal Phase 2b study."
Key Study Results
Safety Profile
Efficacy OutcomesAll three dose groups (0.25 mg, 0.5 mg, and 1.0 mg) demonstrated statistically significant improvements at Week 4 (all p<0.05) on the secondary efficacy endpoints:
Investigator Global Assessment (IGA) showed clear reductions in ulceration and erythema scores
"Investigator examinations revealed significant healing, including reduction in inflammation and visible resolution of ulcerative lesions," said Dr. Michael Chancellor, Chief Medical Officer and Co-Founder of Lipella. "These observations were consistently supported by both investigator and patient-reported outcomes, demonstrating LP-10's meaningful impact on this debilitating condition. Importantly, the therapeutic benefits were generally maintained through the 2-week follow-up period."
Study Design
The Phase 2a study was a multicenter, dose-ranging trial conducted at five leading U.S. clinical sites. Twenty-seven adults with biopsy-confirmed symptomatic OLP were sequentially enrolled into three dose cohorts. Patients used a 3-minute LP-10 oral rinse twice daily for 4 weeks, followed by a 2-week safety follow-up.
The study population was representative of typical OLP patients: 81.5% were female, the median age was 62 years, and disease duration ranged from 1 to 28 years. All participants had previously failed standard therapies, including topical corticosteroids.
Next StepsBased on these positive results, Lipella is advancing LP-10 into late-stage development:
"We believe LP-10 represents a paradigm shift in OLP treatment, if approved" added Kaufman. "By delivering tacrolimus through our proprietary liposomal formulation as an oral rinse, we've overcome the delivery challenges that have limited topical treatments while maintaining an exceptional safety profile. These results strengthen our conviction that LP-10 has the potential to transform the treatment landscape for millions of patients living with this chronic condition."
Full study results will be submitted for publication in a peer-reviewed journal and presented at upcoming medical conferences.
About Oral Lichen PlanusOral lichen planus is a chronic inflammatory condition affecting the oral mucosa, characterized by white reticular lesions, erosions, and ulcerations that cause significant pain and functional impairment. Classified by the WHO as an oral potentially malignant disorder, OLP carries a malignant transformation risk of approximately 1.4%. Despite affecting an estimated 6 million Americans, there are currently no FDA-approved therapies, leaving patients to rely on off-label treatments with limited efficacy and concerning side effect profiles.
About LP-10LP-10 is a proprietary liposomal formulation of tacrolimus designed as an oral rinse for the treatment of oral lichen planus. The liposomal delivery system enables effective local administration while minimizing systemic absorption, addressing the key limitations of current topical treatments. LP-10 has previously demonstrated safety and preliminary efficacy in a Phase 2a study for hemorrhagic cystitis.
About Lipella Pharmaceuticals Inc.Lipella Pharmaceuticals is a clinical-stage biotechnology company focused on reformulating and optimizing existing active pharmaceutical ingredients for new therapeutic applications in diseases with high unmet needs. The company completed its initial public offering in 2022. Learn more atlipella.comand follow us onXandLinkedIn.
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