Healthy Volunteers
Conditions
Keywords
ATH-1105
Brief summary
The goal of this Phase 1 interventional study is to assess the safety, tolerability and pharmacokinetics of ATH-1105 in healthy male and female participants.
Detailed description
The study is a Phase 1, First-In-Human study consisting of two parts (A and B). Part A will comprise a single-dose, double-blind, placebo-controlled, sequential-group design. Part B will comprise a multiple-dose, placebo-controlled, sequential-group design.
Interventions
ATH-1105 in oral form. Participants will be administered ATH-1105 once in Part A and once daily for 10 days in Part B.
Placebo in oral form. Participants will be administered Placebo once in Part A and once daily for 10 days in Part B.
Sponsors
Study design
Eligibility
Inclusion criteria
* Body mass index between 18.0 and 32.0 kg/m2 inclusive. * In good health, determined by no clinically significant findings from medical history, 12-lead ECG, vital signs measurements, and clinical laboratory evaluations at screening and check-in or predose on Day 1 * Females will not be pregnant or lactating, and females of childbearing potential and males will agree to use contraception * Able to comprehend and willing to sign an ICF and to abide by the study restrictions.
Exclusion criteria
Medical Conditions: * Significant history or clinical manifestation of any metabolic, allergic, dermatological, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal, neurological, respiratory, endocrine, or psychiatric disorder * History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance * History of stomach or intestinal surgery or resection that would potentially alter absorption and/or excretion of orally administered drugs * Any of the following: 1. QTcF \>450 ms in males or \>470 ms in females 2. QRS duration \>110 ms 3. PR interval \>220 ms 4. Findings which would make QTc measurements difficult or QTc data uninterpretable. 5. History of additional risk factors for torsades de pointes * Confirmed systolic blood pressure \>140 or \<90 mmHg, diastolic blood pressure \>90 or \<50 mmHg, and pulse rate \>100 or \<40 beats per minute. * Positive hepatitis panel and/or positive human immunodeficiency virus test * Part B only: Current psychiatric disorder, suicidal ideation in the previous 2 years (as assessed by the Columbia-Suicide Severity Rating Scale \[C-SSRS\]), or a lifetime suicide attempt. Prior/concomitant therapy: * Administration of any vaccine in the 30 days prior to dosing. * Use or intend to use any medications/products known to alter drug absorption, metabolism, or elimination processes * Use or intend to use any prescription medications/products other than hormone replacement therapy, oral, implantable, transdermal, injectable, or intrauterine contraceptives within 14 days prior to dosing * Use or intend to use slow-release medications/products considered to still be active within 14 days prior to check-in * Use or intend to use any nonprescription medications/products including vitamins, minerals, and phytotherapeutic/herbal/plant-derived preparations within 7 days prior to check-in
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Incidence of Treatment-Emergent Adverse Events | Part A: Up to 7 days post-dose, Part B: Up to 7 days post final dose on day 10 | Safety and tolerability of single or multiple ascending doses of ATH-1105 as measured by incidence of AEs, determined by clinical laboratory tests, physical examinations, vital signs measurements, and 12-lead ECG |
| Severity of Treatment-Emergent Adverse Events | Part A: Up to 7 days post-dose, Part B: Up to 7 days post final dose on day 10 | Treatment-emergent adverse events will be graded on a 1 through 5 scale, based on severity as determined by the principal investigator. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Time to maximum observed plasma concentration (Tmax) | Part A: Up to 48 hours post-dose, Part B: Up to 48 hours post final dose on Day 10 | Tmax will be determined from all collected plasma samples from baseline through up to 48 hours post-dose. |
| Half-life (t1/2) | Part A: Up to 48 hours post-dose, Part B: Up to 48 hours post final dose on Day 10 | t1/2 will be determined from all collected plasma samples from baseline through up to 48 hours post-dose. |
| Amount of IMP excreted unchanged in the urine (Ae) | Part A: Up to 48 hours post-dose, Part B: Up to 48 hours post final dose on Day 10 | Amount of IMP excreted unchanged in the urine will be determined from all collected urine samples from baseline through up to 48 hours post-dose |
| Area under the plasma concentration time curve (AUC) | Part A: Up to 48 hours post-dose, Part B: Up to 48 hours post final dose on Day 10 | AUC will be determined from all collected plasma samples from baseline through up to 48 hours post-dose. |
| Accumulation Ratio (AUC) of IMP in Urine | Part A: Up to 48 hours post-dose, Part B: Up to 48 hours post final dose on Day 10 | Accumulation Ratio in urine will be determined from all collected urine samples from baseline through up to 48 hours post-dose |
| Accumulation Ratio (AUC) of IMP in Plasma | Part A: Up to 48 hours post-dose, Part B: Up to 48 hours post final dose on Day 10 | Accumulation Ratio in plasma will be determined from all collected plasma samples from baseline through up to 48 hours post-dose |
| IMP Concentration in Cerebrospinal Fluid | Will occur at calculated maximum plasma concentration. | Amount of IMP in the urine will be determined from all collected CSF samples from baseline through up to 48 hours post-dose |
| Maximum observed plasma concentration (Cmax) | Part A: Up to 48 hours post-dose, Part B: Up to 48 hours post final dose on Day 10 | Cmax will be determined from all collected plasma samples from baseline through up to 48 hours post-dose. |
Countries
United States