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A Study to Evaluate the Safety, Tolerability and Pharmacokinetics of AK0406 Injection in Healthy Adult Participants

A Phase I, Randomized, Double-blind, Placebo-controlled, Single-dose, Dose-escalation Clinical Study to Evaluate the Safety, Tolerability and Pharmacokinetic Profiles of AK0406 in Healthy Adult Participants

Status
Not yet recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07432698
Enrollment
32
Registered
2026-02-25
Start date
2026-02-01
Completion date
2027-04-01
Last updated
2026-02-25

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

Conditions

Healthy Participants

Keywords

Pharmacokinetics, Safety, Tolerability

Brief summary

This study is a phase I, single-center, randomized, double-blind, placebo-controlled study of AK0406 as a first-in-human (FIH) trial to evaluate the safety, tolerability and pharmacokinetics (PK) of AK0406 in healthy adult participants.

Detailed description

This study consists of four cohorts: Cohort A: 150 milligram (mg) subcutaneous injection (s.c.) Cohort B: 300 mg s.c. Cohort C: 600 mg s.c. Cohort D: 900 mg s.c. Each cohort will enroll 8 healthy adult participants (AK0406: placebo = 3: 1), including both females and males. Dose escalation will follow a sequential order, beginning with the lowest dose 150 mg and proceeding to 300 mg, 600 mg, and finally 900 mg. A sentinel-dosing strategy will be implemented. For the first cohort (Cohort A) and the last cohort (Cohort D): the first two participants (1 AK0406, 1 placebo) will be dosed and observed for at least 7 days. The first two participants (1 AK0406, 1 placebo) in Cohort B and Cohort C will be dosed and observed for over 48 hours. After both the investigator and sponsor agree with the acceptable safety and tolerability profile, the remaining 6 participants (5 AK0406, 1 placebo) in that cohort will be dosed.

Interventions

DRUGAK0406 150 mg

Single dose of AK0406 150 mg,subcutaneous injection

DRUGAK0406 300 mg

Single dose of AK0406 300 mg,subcutaneous injection

DRUGAK0406 600 mg

Single dose of AK0406 600 mg,subcutaneous injection

DRUGAK0406 900 mg

Single dose of AK0406 900 mg,subcutaneous injection

0.9% Sodium Chloride Injection, subcutaneous injection

Sponsors

Shanghai Ark Biopharmaceutical Co., Ltd.
Lead SponsorINDUSTRY
Ark Biosciences Pty Ltd.
CollaboratorUNKNOWN

Study design

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

Intervention model description

This study consists of four cohorts: Cohort A: 150 milligram (mg) subcutaneous injection (s.c.) Cohort B: 300 mg s.c. Cohort C: 600 mg s.c. Cohort D: 900 mg s.c. Each cohort will enroll 8 healthy adult participants (AK0406: placebo = 3: 1), including both females and males.

Eligibility

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

Inclusion criteria

* Male or female participants aged 18 to 65 years (inclusive) at the time of formed consent. * At screening, male participants must weigh ≥50 kilogram (kg), and female participants must weigh ≥45 kg, with a body mass index between 18.0 and 32.0 kilograms per square meter (kg/m²) (inclusive). * Participants must be in good general health as determined by the investigator, with no clinically significant abnormalities in vital signs, 12-lead electrocardiogram (ECG), or laboratory tests. * Woman of childbearing potential (WOCBP) and male participants whose female sexual partner is WOCBP must agree to use highly effective contraception from the day of study drug administration until 6 months after dosing and must agree to avoid sperm or oocyte donation and not plan to conceive during this period. * Participants must voluntarily agree to participate, be able to communicate effectively with the investigator, understand and comply with study requirements, and provide written informed consent.

Exclusion criteria

* Presence of clinically significant cardiovascular, respiratory, hepatic, renal, hematologic (e.g., bleeding disorders), gastrointestinal, endocrine, immune, dermatologic, neurologic, or psychiatric disease, or any other condition that, in the opinion of the investigator, may compromise participant safety, interfere with study results, or prevent completion of the study. * Active malignancy or history of malignancy (except adequately treated basal cell carcinoma with no evidence of recurrence). * History of congenital or acquired immunodeficiency. * Acute illness (e.g., fever, infectious disease, diarrhea) within 7 days prior to first dosing. * Major surgery within 3 months before screening or planned major surgery within 6 months after study drug administration. * Known hypersensitivity to neuraminidase inhibitors (e.g., oseltamivir, zanamivir, peramivir), or to AK0406 active ingredient or any excipients. * Anaphylaxis or severe hypersensitivity (e.g., hypotension, dyspnea, severe angioedema). Diagnostic Assessments * Positive for Human immunodeficiency virus (HIV) antibody, Hepatitis C virus (HCV) antibody, Hepatitis B surface antigen (HBsAg), or Treponema pallidum antibody. * Systolic blood pressure \>140 millimeters of mercury (mmHg) or ≤90 mmHg, diastolic blood pressure ≥90 mmHg or ≤50 mmHg, or pulse ≤45 or ≥110 beats per minute (bpm) while awake and at rest. * The Corrected QT interval by Fredericia (QTcF) prolongation (up to 450 ms in males / 470 milliseconds (ms) in females) at screening. \[QTcF = QT/(RR\^0.33)\] (RR = 60/heart rate)

Design outcomes

Primary

MeasureTime frameDescription
Adverse eventsUp to Day 181Capture the incidence and severity of adverse events using the National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE), version 6.0 throughout the study period.

Secondary

MeasureTime frameDescription
Maximum concentrationPre-dose, Day 1, Day 3, Day 5, Day 7, Day 15, Day 22, Day 31, Day 61, Day 91, Day 121, Day 151, Day 181Samples will be used to evaluate maximum concentration of AK0406 and zanamivir (if any) in plasma.
Time to maximum concentrationPre-dose, Day 1, Day 3, Day 5, Day 7, Day 15, Day 22, Day 31, Day 61, Day 91, Day 121, Day 151, Day 181Samples will be used to evaluate time to maximum concentration of AK0406 and zanamivir (if any) in plasma.
Area under the drug concentration-time curve from time 0 to the last measurable concentrationPre-dose, Day 1, Day 3, Day 5, Day 7, Day 15, Day 22, Day 31, Day 61, Day 91, Day 121, Day 151, Day 181Samples will be used to evaluate area under the drug concentration-time curve from time 0 to the last measurable concentration of AK0406 and zanamivir (if any) in plasma.
Area under the drug concentration-time curve from time 0 to extrapolated to infinite timePre-dose, Day 1, Day 3, Day 5, Day 7, Day 15, Day 22, Day 31, Day 61, Day 91, Day 121, Day 151, Day 181Samples will be used to evaluate area under the drug concentration-time curve from time 0 to extrapolated to infinite time of AK0406 and zanamivir (if any) in plasma.
Terminal half-lifePre-dose, Day 1, Day 3, Day 5, Day 7, Day 15, Day 22, Day 31, Day 61, Day 91, Day 121, Day 151, Day 181Samples will be used to evaluate terminal half-life of AK0406 and zanamivir (if any) in plasma.
Apparent clearancePre-dose, Day 1, Day 3, Day 5, Day 7, Day 15, Day 22, Day 31, Day 61, Day 91, Day 121, Day 151, Day 181Samples will be used to evaluate apparent clearance of AK0406 and zanamivir (if any) in plasma.
Apparent volume of distributionPre-dose, Day 1, Day 3, Day 5, Day 7, Day 15, Day 22, Day 31, Day 61, Day 91, Day 121, Day 151, Day 181Samples will be used to evaluate apparent volume of distribution of AK0406 and zanamivir (if any) in plasma.
Incidence and titer of anti-drug antibodiesBaseline, Day 15, Day 31, Day 91, Day 181Incidence and titer of anti-drug antibodies against AK0406 detected in serum.

Countries

Australia

Contacts

CONTACTNora Guo
nora.guo@arkbiosciences.com86-21-50681677

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026