A Study to Evaluate Central Nervous System (CNS) Pharmacodynamic Activity of TAK-653 in Healthy Participants Using Transcranial Magnetic Stimulation (TMS)

Neurocrine Biosciences24 enrolled

Overview

The primary purpose of this study is to determine whether TAK-653, in comparison to placebo, increases CNS excitability, assessed with TMS-evoked motor-evoked potential (MEP) in healthy participants.

The drug being tested in this study is called TAK-653. This study is designed to evaluate the central pharmacodynamic activity of TAK-653 using TMS. The study will enroll approximately 24 participants to yield 22 participants that complete treatment periods 1, 2, and 3. Participants will be randomly assigned to 1 of the 6 sequences to receive TAK-653 0.5 mg low dose or TAK-653 6 mg high dose or Placebo in double-blind treatment periods 1, 2, and 3, followed by Ketamine 0.5 mg/kg in open-label Treatment period 4. All participants will receive one dose of TAK-653 (0.5 or 6 mg), or Placebo or Ketamine on Day 1 of each treatment period. This single center trial will be conducted in the Netherlands. The overall time to participate in this study is 15 weeks. Participants will make 5 visits to the clinic. A washout period of minimum 10 days will be maintained between the doses in treatment periods 1 to 3. Follow-up phone call will be made on Day 14.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

DOUBLE

Enrollment

Conditions

Healthy Volunteers

Interventions

TAK-653DRUG

TAK-653 tablets.

PlaceboDRUG

TAK-653 placebo-matching tablets.

KetamineDRUG

Ketamine intravenous infusion.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 55 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: 1. Must be judged to be in good health by the investigator, based on clinical evaluations including laboratory safety tests, medical history, physical examination, 12-lead electrocardiogram (ECG), and vital sign measurements performed at the screening visit and before the first dose of study drug. 2. Must be male or female (of nonchildbearing potential) aged 18 to 55 years, inclusive, at the screening visit. 3. Must have a body mass index (BMI) greater than or equal to (\>=) 18.5 and less than or equal to (\<=) 30.0 kilogram per square meter (kg/m\^2) at the screening visit. Exclusion Criteria: 1. Has a positive alcohol or drug screen. 2. Had major surgery or donated or lost 1 unit of blood (approximately 500 milliliter \[mL\]) within 4 weeks before the screening visit. 3. Has a history of alcohol consumption exceeding 2 standard drinks per day on average (1 glass is approximately equivalent to the following: beer \[354 mL/12 ounce (oz)\], wine \[118 mL/4 oz\], or distilled spirits \[29.5 mL/1 oz\] per day). 4. Who regularly smoke more than 5 cigarettes daily or equivalent and unable or unwilling not to smoke during the in-house period. 5. Consumes excessive amounts, defined as greater than 6 servings (1 serving is approximately equivalent to 120 mg of caffeine) of coffee, tea, cola, energy drinks, or other caffeinated beverages per day. 6. Has a previous or current clinically significant psychiatric disorder according to Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, (DSM-5) including substance use disorder. 7. Has a history of intracranial mass lesion, hydrocephalus and/or head injury or trauma. 8. Has metal objects in brain or skull. 9. Has a cochlear implant or deep brain stimulation device. 10. Has a history of epilepsy, seizures, or convulsions. 11. Has a family history of epilepsy, seizures, or convulsions. 12. Has abnormal sleeping patterns (example, working night shifts) 13. Has an rMT of more than 75% of the maximum stimulator output, measured using TMS-electromyogram (EMG) during screening.

Locations (1)

CHDR

Leiden, Netherlands

Outcomes

Primary Outcomes

Change From Baseline in Peak-to-Peak Amplitude of Motor-evoked Potential (MEP) Obtained With Single-pulse Transcranial Magnetic Stimulation (TMS) for TAK-653 at 2.5 Hours Post TAK-653 Dose

TMS was a neurophysiologic test for assessing upper motor neuron function. TMS was a noninvasive neuro stimulation method involving the application of brief magnetic pulses to the skull, based on the principles of electromagnetic induction, create an orthogonal electric current that can be sufficient to depolarize neurons and activate neuronal circuits. Single-pulse TMS was used to determine peak-to-peak amplitude of MEP at a stimulation intensity of 120 percent (%) of baseline resting motor threshold (rMT). rMT was defined as the minimum stimulus intensity to evoke an MEP. Change in peak-to peak amplitude of MEP was be assessed by TMS after treatment with 0.5 mg or 6 mg of TAK-653 versus (vs.) matched oral placebo.

Time frame: Baseline, 2.5 hours post TAK-653 dose

Change From Baseline in Resting Motor Threshold (rMT) Obtained With Single-pulse TMS for TAK-653 at 2.5 Hours Post TAK-653 Dose

The rMT was defined as the minimum stimulus intensity to evoke an MEP. Single-pulse TMS was used to determine rMT. A lower rMT value indicated greater neuronal excitability. TMS was a neurophysiologic test for assessing upper motor neuron function. TMS was a noninvasive neuro stimulation method involving the application of brief magnetic pulses to the skull, based on the principles of electromagnetic induction, create an orthogonal electric current that can be sufficient to depolarize neurons and activate neuronal circuits. Change in rMT was be assessed by TMS after treatment with 0.5 mg or 6 mg of TAK-653 vs. matched oral placebo.

Time frame: Baseline, 2.5 hours post TAK-653 dose

Secondary Outcomes

Change From Baseline in Magnitude of Long Intracortical Inhibition (LICI) Obtained With Paired-pulse TMS for TAK-653 at 2.5 Hours Post TAK-653 Dose

LICI was TMS stimulation paradigm that capture modulation of cortical excitation-inhibition balance with pairs of TMS pulses at stimulation intensity conditioning pulse and test pulse of 120% of baseline rMT. rMT was defined as the minimum stimulus intensity to evoke an MEP. TMS was a neurophysiologic test for assessing upper motor neuron function. TMS was a noninvasive neuro stimulation method involving the application of brief magnetic pulses to the skull, based on the principles of electromagnetic induction, create an orthogonal electric current that can be sufficient to depolarize neurons and activate neuronal circuits. Change in LICI was be assessed by TMS after treatment with 0.5 mg or 6 mg of TAK-653 vs. matched oral placebo.

Data from ClinicalTrials.gov

This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.