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A Study of GSM-779690T in Healthy Adult Participants

A Phase 1, Randomized, Double-Blind, Placebo-Controlled Single Ascending Dose Study to Evaluate the Safety, Tolerability and Pharmacology of GSM-779690T in Healthy Adult Participants

Status
Not yet recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07690228
Enrollment
72
Registered
2026-07-08
Start date
2026-08-15
Completion date
2027-07-15
Last updated
2026-07-09

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

Conditions

Alzheimer Disease, Healthy Adult Participants

Keywords

Pharmacokinetics, pharmacodynamics, single ascending dose

Brief summary

A Phase 1, single-centre, randomized, double-blind, placebo-controlled study to evaluate the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of a single and multiple dose regimens of GSM-779690T in healthy adults. This first-in-human study will evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of GSM-779690T.

Interventions

Opaque capsules for oral consumption

DRUGPlacebo

Opaque capsules for oral consumption

Sponsors

Acta Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

Double (participant, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

Participants must meet all of the following inclusion criteria to be eligible for enrollment: 1. Healthy and aged 18-55 years. 2. Current Mini Mental State Examination (MMSE) score between 27 and 30 at screening. 3. Able to provide their own written informed consent. 4. Good general health with no disease expected to interfere with the study. 5. Able to read, speak, and understand English to ensure compliance with cognitive testing and study visit procedures. 6. Must be ambulatory and be willing to remain domiciled in the clinic for the required study procedures. 7. Contraception requirements: a. Women of childbearing potential (WOCBP) must agree to use a highly effective method of birth control (confirmed by the Investigator) from enrollment, throughout the study duration, and have a negative pregnancy test result at screening. Highly effective methods of birth control (those with a failure rate of \< 1% per year when used consistently and correctly) include: (i) Combined (oestrogen- and progestogen-containing) hormonal contraception associated with inhibition of ovulation: oral, intravaginal, or transdermal, (ii) Progestogen-only hormonal contraception associated with inhibition of ovulation: oral, injectable, or implantable, (iii) Intrauterine device, (iv) Intrauterine hormone-releasing system, (v) Bilateral tubal occlusion, (vi) Tubal ligation, (vii) Sexual abstinence, i.e., refraining from heterosexual intercourse, or (viii) Vasectomized sexual partner (provided that partner is the sole sexual partner of the WOCBP study participant and that the vasectomized partner has received medical assessment of the surgical success). b. Women not of childbearing potential are defined as women who are either permanently sterilized (hysterectomy, bilateral oophorectomy, or bilateral salpingectomy) or who are postmenopausal. c. Males with childbearing partners must be willing to practice sexual abstinence or use double-barrier protection during study treatment and until 1 week after the last dose of study treatment. Participants who meet any of the following criteria must not be included in the study: 1. A history of any current or clinically significant gastrointestinal, renal, hepatic, bronchopulmonary, neurological, psychiatric, cardiovascular, endocrinological, ophthalmologic, hematological, or allergic disease or metabolic disorder. 2. Use of any concomitant medications is prohibited, other than prescribed birth control methods stable 30 days prior to Day -1. 3. A history of chronic use of non-steroidal anti-inflammatory drugs (NSAIDs) or procedures that require intravenous contrast within 72 hours of study initiation. 4. A history of a psychiatric disorder such as schizophrenia, bipolar disorder or major depression according to the criteria of the most current version of the Diagnostic and Statistical Manual of Mental Disorders (DSM). 5. Any evidence of current suicidal ideation or any previous suicide attempt as evaluated by the Columbia-Suicide Severity Rating Scale (C-SSRS). 6. Diagnosis of a neurodegenerative disease or dementia, including but not limited to Alzheimer's disease (AD), Parkinson's disease, and Huntington's disease.

Design outcomes

Primary

MeasureTime frameDescription
Safety EvaluationFrom enrollment up to 7 days post dosing in the SAD and up to 21 days post dosing in the MAD.The number of participants with Adverse Events, with abnormal Vital Signs, abnormal Physical Examination findings, abnormal laboratory Test results, abnormal 12-lead Electrocardiogram (ECG) readings.

Secondary

MeasureTime frameDescription
Area under the plasma concentration curve versus time curve (AUC) after single GSM-779690T dose.At pre-dose, post dose on day 1, Day 2, Day 3, and Day 4.Evaluate the pharmacokinetics (Area under the plasma concentration curve) of GSM-779690T after a single dose via measuring concentration levels in the blood.
Area under the plasma concentration versus time curve (AUC) after multiple GSM-779690T doses.At Pre-Dose, Day 3, Day 5, Day 7, Day 9, Day 11, Day 13, Day 14, Day 15, Day 16 Post-Dose.Evaluate the pharmacokinetics (Area Under the Plasma Concentration Curve) of GSM-779690T after multiple doses via measuring concentration levels in the blood.

Countries

Australia

Contacts

CONTACTAngela L Britton, MS
abritton@actapharmaceuticals.com13017580468

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 10, 2026