Study of LQT-1213 on QTc-induced Prolongation in Healthy Adult Subjects (Part1) and on Congenital Long QT in Patients Diagnosed With Type 2 or 3 Long QT Syndrome (Part 2).

Long QT Syndrome Clinical Trial

Official title:
A Phase 1b/2a, 2-Part Study; Part 1: Randomized, Double-Blind, Crossover, Dose-Escalation, Placebo-Controlled Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of SGK-1 Kinase Inhibition by LQT-1213 on Dofetilide-Induced QTc Prolongation in Healthy Adult Subjects. Part 2: Single-Blind, Multiple-Dose, Safety Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of LQT-1213 in Patients Diagnosed With Type 2 or 3 Long QT Syndrome

Status Recruiting

Clinical Trial Summary

Part 1: This is a Phase 1b, randomized, double-blind, crossover, dose escalation, placebo-controlled study to evaluate the effect of oral LQT-1213 on dofetilide-induced QTc prolongation in healthy adult subjects. This is a 2-treatment, 2-period crossover study with approximately up to 28 healthy subjects, with screening procedures within 28 days of enrolment. Part 2: This is a Phase 2a, single-blind, placebo run-in, multiple-dose safety study to evaluate the safety, tolerability, and PK of LQT-1213 in patients diagnosed with LQT2 or LQT3. Up to 12 participants with LQT2 and up to 12 participants with LQT3 will be recruited.

Clinical Trial Description

Part 1: This is a 2-treatment, 2-period crossover study. Approximately 28 healthy subjects, with the attempt to balance for sexes, will be enrolled to complete approximately up to 20 subjects in the study. In both treatment periods, all subjects will receive dofetilide on Days 1 and 2 of each period. Randomization will take place before Day 3 of Period 1. Subjects will be randomly assigned to 1 of 2 treatment sequences (AB or BA). Part 2: Up to 12 participants with LQT2 and up to 12 participants with LQT3 will be enrolled. After initial screening, which may be conducted remotely by the CRU, individual participants with LQT2 or LQT3 will undergo a 1-day, single-blind placebo run-in period followed by 3 dosing days of LQT-1213 administered BID (the last dosing day will have a single dose). LQT-1213 will be administered BID on Days 2-4. Participants will be discharged from the CRU on Day 5. Approximately 7 days after discharge from the CRU, the Follow-up Visit will be conducted remotely via telephone call. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05906732
Study type	Interventional
Source	Thryv Therapeutics, Inc.
Contact	Doug Wight
Phone	438-998-5497
Email	doug@thryvtrx.com
Status	Recruiting
Phase	Phase 1/Phase 2
Start date	March 12, 2023
Completion date	June 30, 2024

View Details

See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.