About this trial
Retinitis pigmentosa (RP) is a rare inherited retinal degenerative disease that causes progressive visual field loss and vision impairment, often leading to blindness. Currently, there are limited treatment options capable of slowing disease progression for the majority of patients with RP. Preclinical studies have suggested that retinal inflammation, particularly the activity of inflammatory monocytes and macrophages, may contribute to photoreceptor degeneration. ULREA-PVS-NP is a novel intravenous formulation consisting of pitavastatin encapsulated in poly(lactic-co-glycolic acid) (PLGA) nanoparticles, developed to target inflammatory pathways associated with retinal degeneration. Preclinical studies demonstrated suppression of inflammatory monocyte/macrophage activity and preservation of photoreceptors in animal models of RP.
This is a single-center, open-label, investigator-initiated Phase 1 study designed to evaluate the safety of intravenous ULREA-PVS-NP in adults with RP. The study consists of two parts. In Part 1, participants will receive a single intravenous infusion of ULREA-PVS-NP at escalating dose levels (2 mg, 4 mg, or 8 mg) to evaluate safety and tolerability. Following review of safety data, Part 2 will evaluate repeated administration of the highest dose considered safe in Part 1, given once every four weeks for a total of three administrations.
The primary objective is to evaluate the safety of ULREA-PVS-NP by assessing the incidence of adverse events. Secondary objectives include characterization of pharmacokinetic profiles, evaluation of changes in clinical laboratory tests and vital signs, and exploratory assessment of ophthalmologic outcomes and inflammatory biomarkers.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients diagnosed with typical retinitis pigmentosa by two ophthalmologists according to the Clinical Practice Guidelines for Retinitis Pigmentosa (genomic diagnosis will not be performed).
Patients aged 18 years or older and 70 years or younger at the time of informed consent.
* Patients with a mean retinal sensitivity of 10 dB or higher within the central 4 degrees (12 points) of the Humphrey 10-2 visual field.
* Patients whose difference in mean retinal sensitivity (MD value) between two Humphrey 10-2 examinations at screening is within 3 dB. If the criteria are not met in the second examination, a third measurement will be performed within 14 days of the second examination, and the difference between the third measurement and the first or second measurement must be within 3 dB.
Disqualifiers
Patients currently taking statins for hyperlipidemia.
Patients who have received helenien, unoprostone, or calcium channel blockers for the treatment of eye diseases within 30 days prior to informed consent.
Patients scheduled for ophthalmic surgery during the study period.
Patients with concomitant glaucoma or ocular hypertension.
Trial design
Single group
Treatments tested in this trial
ULREA-PVS-NP
DrugULREA-PVS-NP is a poly(lactic-co-glycolic acid) (PLGA) nanoparticle formulation containing pitavastatin and administered intravenously. Part 1 is a single ascending-dose study in which participants receive a single intravenous administration of ULREA-PVS-NP at dose levels equivalent to 2 mg, 4 mg, or 8 mg of pitavastatin. Part 2 is a multiple-dose study in which participants receive repeated intravenous administrations at the highest dose level shown to be safe in Part 1.
Treatment groups
Trial outcomes
Primary outcomes
Incidence of adverse events
Secondary outcomes
Time course of drug concentrations of pitavastatin and pitavastatin lactone in plasma.
Urinary excretion of pitavastatin, pitavastatin lactone, and pitavastatin conjugates in urine.
Changes from baseline (pre-investigational product administration) in body temperature.
Changes from baseline (pre-investigational product administration) in blood pressure.
Sponsors and contacts
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