RecruitingPhase 1ACTRN12625000428460

An Ascending, Single and Multiple Dose(s), Double-Blind, Randomized, Placebo Controlled Study Assessing the Safety, Tolerability, and Pharmacokinetics of Intravenous OV350 in Healthy Male and Female Participants


Sponsor

Ovid Therapeutics Australia Pty Ltd

Enrollment

72 participants

Start Date

Mar 7, 2025

Study Type

Interventional

Conditions

Summary

OV350 is a brain penetrant, small molecule activator of the neuron-specific K+-Cl- co-transporter 2 (KCC2). KCC2 plays a critical role in maintaining chloride homeostasis in neurons through extrusion of chloride ions, thus ensuring the inhibitory function of GABAergic neurotransmission. Dysregulation of KCC2 can lead to an imbalance in excitatory and inhibitory signalling, contributing to disinhibition of neural circuits and downstream neuroinflammation. By directly activating KCC2, OV350 has the potential to restore abnormal neuronal excitatory/inhibitory balance notable in disease states, including psychosis of Neuronal a-Synuclein Disease (NSD). Part A will consist of approximately 5 cohorts, comprising 8 participants each. Dosing will be initiated at 50 mg/day. Subsequent cohorts will be dosed as recommended after the safety, tolerability and PK of IV OV350 from the previous cohort has been assessed. Doses will not increase more than 2x the previous dose tested. It is anticipated that Part B will consist of 4 planned cohorts comprising 8 participants each, using different doses of OV350.Dose levels for Part B (including starting dose) will be determined based on the overall safety and tolerability profile, PK data, and potentially EEG of OV350 after single ascending bolus dose(s). It is anticipated that the starting dose in MAD will be the second SAD dose but will be confirmed once the initial 2 SAD cohort data have been reviewed by the study sponsor, study PI, medical monitor, and pharmacokineticist. Participants will be dosed for a total of 7 days.


Eligibility

Sex: Both males and femalesMin Age: 18 YearssMax Age: 55 Yearss

Plain Language Summary

Simplified for easier understanding

OV350 is a new investigational drug being developed to help restore normal brain signalling in conditions where the balance between excitatory and inhibitory nerve activity has been disrupted. This imbalance is thought to play a role in conditions like psychosis associated with certain neurological diseases. OV350 works by activating a specific protein in neurons that helps regulate the flow of electrically charged particles, which is essential for normal brain function. This is a Phase 1 first-in-human trial, meaning it is the very first time this drug is being tested in people. The primary goal is to understand whether the drug is safe and how the body processes it at different doses. Healthy volunteers will receive the drug via intravenous infusion and be monitored closely in a clinical research unit over several days. Participants will not personally benefit from taking part, but the data collected is essential for determining whether the drug should move forward into studies in people with neurological conditions. You may be eligible if you are a healthy adult aged 18 to 55 with a normal BMI (18 to below 35), are a non-smoker or very light smoker, have no significant medical or psychiatric history, and are willing to stay in the research facility for the duration of the dosing period. Women who could become pregnant must agree to use highly effective contraception.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

The study will be a Phase 1, single-center, randomized, double-blind, placebo-controlled, inpatient study of the safety and tolerability of single and multiple ascending dose(s) of intravenous OV350 i

The study will be a Phase 1, single-center, randomized, double-blind, placebo-controlled, inpatient study of the safety and tolerability of single and multiple ascending dose(s) of intravenous OV350 in healthy male and female participants. The study is comprised of two parts: Part A, approximately 5 single ascending dose (SAD) administered as a 10-minute infusion starting at 50mg; and Part B, approximately 4 multiple ascending doses (MAD) administered once a day for 7 days. SAD and MAD cohorts can be conducted in parallel but dosing in a MAD cohort will only be initiated after the dose is cleared in a SAD cohort. The study sponsor, the study principal investigator (PI), medical monitor, and a pharmacokineticist will review data summaries from each cohort and recommend whether to proceed with dose escalation or MAD cohort dosing. The study will assess the safety profile of intravenous OV350 on ECG parameters, VS, physical and neurological examinations, hematology and chemistry laboratory results and adverse events (AEs). In addition, neurophysiologic PD variables in the study are quantitative EEG, particularly the timing and extent of EEG changes in relation to the doses administered. In each cohort, a sentinel group of 2 participants (1 active: 1 placebo) will be randomized and dosed ahead of the rest of the cohort. These 2 participants will be monitored for 2 days until the end of the in-patient portion of Part A (Day 3) and for 8 days for the in-patient portion of Part B (Day 9) before their available data will be reviewed by the Principal Investigator. The remaining 6 participants will be dosed once the Principal Investigator has concluded that it is safe to proceed with the rest of the cohort. Participants involved in SAD cohorts will not be eligible for inclusion in MAD cohorts, ensuring unique enrollment across both segments. Monitoring visits by the CRO to the study site will be made periodically during the study to ensure that all aspects of the protocol are followed.


Locations(1)

SA, Australia

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ACTRN12625000428460


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