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Clinical Trials/NCT07429006
NCT07429006
Recruiting
Phase 1

A Randomized, Double-Blind, Placebo-Controlled, Single (SAD) and Multiple Ascending-Dose (MAD) Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of AKB-9090 Administered Intravenously to Healthy Adult Participants

Akebia Therapeutics1 site in 1 country70 target enrollmentStarted: March 16, 2026Last updated:
InterventionsPlaceboAKB-9090

Overview

Phase
Phase 1
Status
Recruiting
Enrollment
70
Locations
1
Primary Endpoint
Number of participants who will report serious Treatment emergent adverse events (TEAEs) and TEAEs

Overview

Brief Summary

This is a first-in-human (FIH study designed to evaluate safety, tolerability, pharmacokinetic, and pharmacodynamic effects of AKB-9090 in healthy adult participants. The study consists of two stages: Stage 1, a single ascending dose (SAD) phase with five dose cohorts, and Stage 2, a multiple ascending dose (MAD) phase with three dose cohorts. Approximately 40 participants in SAD and 30 in MAD are planned to be enrolled.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Sequential
Primary Purpose
Treatment
Masking
Double (Participant, Investigator)

Eligibility Criteria

Ages
18 Years to 60 Years (Adult)
Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • Healthy adult participants with no clinically significant findings, as judged by the investigator, based on physical examination, 12-lead ECG, alcohol breath test, and clinical laboratory tests (including serum chemistry, hematology, coagulation, urine drug screen, and urinalysis).
  • Body mass index (BMI) greater than 18.5 and less than 32.0 kg/m\^2 at screening.
  • In the Investigator's opinion, willing and able to provide written informed consent and comply with the all protocol requirements, including required confinement, outpatient visits, and protocol-specified restrictions (including refraining from major lifestyle changes) from signature of the informed consent form (ICF) through the last study visit.

Exclusion Criteria

  • Clinically significant metabolic, hepatic, renal, hematologic, pulmonary, cardiovascular, gastrointestinal, musculoskeletal, dermatologic, urogenital, ophthalmologic, ear/nose/throat, psychiatric, or neurologic disorder.
  • History of active or recurrent malignancy within 2 years before screening or during the screening period, or currently receiving treatment or suppressive therapy for cancer, except for:
  • Treated basal cell carcinoma of the skin
  • Curatively resected squamous cell carcinoma of the skin
  • Treated colonic or cervical carcinoma in situ
  • Abnormal ECG findings at screening, including:
  • Severe bradycardia (heart rate \<40 beats per minute) on any measurement
  • Mean QT Interval Using Fridericia's Formula (QTcF) \>450 msec for males or \>470 msec for females
  • Elevated laboratory values (\>1.25 × upper limit of normal \[ULN\]) for alanine aminotransferase (ALT), aspartate aminotransferase (AST), or creatinine at the screening visit or at check-in.
  • Evidence of acute or chronic hepatitis B (positive hepatitis B surface antigen) or hepatitis C infection (positive hepatitis C antibody and positive hepatitis C ribonucleic acid \[RNA\] test).

Arms & Interventions

Placebo

Placebo Comparator

Single IV dose of matching Placebo.

Intervention: Placebo (Other)

AKB-9090

Experimental

Participants will receive a single intravenous (IV) dose of AKB-9090 at 5 escalating dose levels in the SAD stage and at 3 dose levels in the MAD stage.

Intervention: AKB-9090 (Drug)

Outcomes

Primary Outcomes

Number of participants who will report serious Treatment emergent adverse events (TEAEs) and TEAEs

Time Frame: From First Dose to Day 7

Number of Participants with Clinically Significant Changes in Physical Examinations

Time Frame: From First Dose to Day 7

Number of Participants with Clinically Significant Changes in Vital Signs

Time Frame: From First Dose to Day 7

Number of Participants with Clinically Significant Changes in 12-lead Electrocardiogram (ECG)

Time Frame: From First Dose to Day 7

Number of Participants with Clinically Significant Changes in Chemistry parameters

Time Frame: From First Dose to Day 7

Number of Participants with Clinically Significant Changes in Hematology Parameters

Time Frame: from first dose to Day 7

Number of Participants with Clinically Significant Changes in Lipid Parameters

Time Frame: From First Dose to Day 7

Number of Participants with Clinically Significant Changes in Coagulation Parameters

Time Frame: From First Dose to Day 7

Number of Participants with Clinically Significant Changes in Urinalysis Parameters

Time Frame: From First Dose to Day 7

Secondary Outcomes

  • Stage 1 SAD Cohorts: Maximum observed plasma concentration (Cmax) of AKB-9090(At Day 1)
  • Stage 1 SAD Cohorts: Time of maximum plasma concentration (Tmax) of AKB-9090(At Day 1)
  • Stage 1 SAD Cohorts: Area under concentration time curve (AUC) from time 0 to the last observation (AUClast) of AKB-9090(At Day 1)
  • Stage 1 SAD Cohorts: Apparent body clearance (CL) of AKB-9090(At Day 1)
  • Stage 1 SAD Cohorts: AUC from time 0 to infinity (AUCinf) of AKB-9090(At Day 1)
  • Stage 1 SAD Cohorts: Terminal half-life (T1/2) of AKB-9090(At Day 1)
  • Stage 2 MAD Cohorts: Cmax of AKB-9090(At Day 1 and Day 7)
  • Stage 2 MAD Cohorts: Tmax of AKB-9090(At Day 1 and Day 7)
  • Stage 2 MAD Cohorts: AUC to 24 hours post-dose (AUC24) of AKB-9090(At Day 1)
  • Stage 2 MAD Cohorts: CL of AKB-9090(At Day 1 and Day 7)
  • Stage 2 MAD Cohorts: T1/2 of AKB-9090(At Day 1 and Day 7)
  • Stage 2 MAD Cohorts: AUC at Steady state (AUCss) of AKB-9090(At Day 7)
  • Stage 1 SAD Cohorts: Change from Baseline in Pharmacodynamic Biomarker - Erythropoietin (EPO)(Baseline (Day 1) and at 6, 12, 18, and 24 hours post-dose)
  • Stage 1 SAD Cohorts: Change from Baseline in Pharmacodynamic Biomarker - Red Blood Cell Count (RBC)(Baseline (Day 1) and At Day 2)
  • Stage 1 SAD Cohorts: Change from Baseline in Pharmacodynamic Biomarker - Reticulocyte Count(Baseline (Day 1) and At Day 2)
  • Stage 2 MAD Cohorts: Change from Baseline in Pharmacodynamic Biomarker - EPO(Baseline (Day 1 and Day 7) and at 6, 12, 18, and 24 hours post-dose)
  • Stage 2 MAD Cohorts: Change from Baseline in Pharmacodynamic Biomarker - RBC(Baseline (Day 1) and At Days 4 and 8)
  • Stage 2 MAD Cohorts: Change from Baseline in Pharmacodynamic Biomarker - Reticulocyte Count(Baseline (Day 1) and At Days 4 and 8)

Investigators

Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (1)

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