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A SAD and MAD Study of the Safety, Tolerability, and Pharmacokinetics of ATH-1105

ATH-1105 A Phase 1, Double-Blind, Placebo-Controlled, Single-and-Multiple-Oral-Dose, Safety, Tolerability, and Pharmacokinetic Study in Healthy Male and Female Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06432647
Enrollment
80
Registered
2024-05-29
Start date
2024-04-24
Completion date
2024-11-25
Last updated
2025-01-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

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

DRUGATH-1105

ATH-1105 in oral form. Participants will be administered ATH-1105 once in Part A and once daily for 10 days in Part B.

DRUGPlacebo

Placebo in oral form. Participants will be administered Placebo once in Part A and once daily for 10 days in Part B.

Sponsors

Fortrea Holdings, Inc.
CollaboratorUNKNOWN
Athira Pharma
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
OTHER
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

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

MeasureTime frameDescription
Incidence of Treatment-Emergent Adverse EventsPart A: Up to 7 days post-dose, Part B: Up to 7 days post final dose on day 10Safety 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 EventsPart A: Up to 7 days post-dose, Part B: Up to 7 days post final dose on day 10Treatment-emergent adverse events will be graded on a 1 through 5 scale, based on severity as determined by the principal investigator.

Secondary

MeasureTime frameDescription
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 10Tmax 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 10t1/2 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 10Amount 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 10AUC will be determined from all collected plasma samples from baseline through up to 48 hours post-dose.
Accumulation Ratio (AUC) of IMP in UrinePart A: Up to 48 hours post-dose, Part B: Up to 48 hours post final dose on Day 10Accumulation 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 PlasmaPart A: Up to 48 hours post-dose, Part B: Up to 48 hours post final dose on Day 10Accumulation Ratio in plasma will be determined from all collected plasma samples from baseline through up to 48 hours post-dose
IMP Concentration in Cerebrospinal FluidWill 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 10Cmax will be determined from all collected plasma samples from baseline through up to 48 hours post-dose.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026