A First-in-Human Study of KINE-101 in Healthy Volunteers

A Randomized, Single Center, Double-blind, Placebo-controlled, First in Human Study With Single Ascending Doses to Determine Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Intravenous Infusion and Subcutaneous Injections of KINE-101 in Healthy Subjects

This is a Phase 1, randomized, double-blind, placebo-controlled, single ascending dose (SAD) study that evaluates the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of intravenous (IV) and subcutaneous (SC) formulations of KINE-101 in healthy volunteers at a single study center. Five cohorts of eight subjects each (six receiving KINE-101 and two receiving placebo) are admitted on Day -1, receive a single dose of investigational medicinal product (IMP) on Day 1, and remain in-house until Day 3, followed by outpatient visits on Days 7, 14, 28, and 42. Sentinel dosing applies in the first sub-cohort of each cohort: two sentinel subjects are dosed at least 10 minutes apart, and if no safety concerns arise during the 48-hour post-dose evaluation period, the remaining subjects in the cohort are subsequently dosed. Dosing in the second sub-cohort also occurs at intervals of at least 10 minutes. Four cohorts receive the IV formulation, with doses escalating from 10 mg up to an anticipated maximum of 300 mg. To compare relative bioavailability and characterize PK after subcutaneous administration, one SC cohort receives a single 96.8 mg dose. The number of cohorts and dose progression depend on emerging safety and PK data. Decisions to escalate, repeat, or modify dose levels are made by the Safety Review Committee (SRC), and additional cohorts may be added if deemed necessary.

Study Overview

• Status: Completed
• Conditions: Healthy Volunteers
• Intervention / Treatment: Drug: KINE-101; Drug: Placebo

• Study Type: Interventional
• Enrollment (Actual): 40
• Phase: Phase 1

Contacts and Locations

Study Locations

• United States
  • Maryland
    • Baltimore, Maryland, United States, 21225
      • Parexel International

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Signed IRB-approved informed consent before any screening procedures.
• Healthy subjects with no clinically significant illness or disease based on medical history, physical exam, ECG, and lab tests.
• Males and females aged 18-55 years at screening.
• Nonsmokers or no nicotine use for ≥1 year; urine cotinine <200 ng/mL at screening and admission.
• BMI 18.5-30.0 kg/m² and body weight ≥50 kg at screening.
• Suitable veins for venipuncture/cannulation.
• Able to fast overnight (≥10 hours).
• Male subjects agree to use condoms during intercourse and for 1 month after last IMP dose.
• Male subjects must not donate sperm from dosing day until 1 month after last IMP dose.
• Female subjects must be of non-childbearing potential (postmenopausal ≥12 months with FSH >40 IU/L or surgical sterilization such as hysterectomy, tubal ligation, bilateral oophorectomy/salpingectomy).

Exclusion Criteria:

• Received an investigational medicinal product (IMP) within 30 days or 5× half-life before first IMP administration.
• History of alcohol abuse within 2 years, weekly intake >21 units, or positive alcohol test at screening/admission.
• Current smokers or nicotine use within 12 months; positive urine cotinine at screening/admission.
• Clinically significant abnormal labs: ALT, AST, or total bilirubin >ULN (or >1.5×ULN if Gilbert's), serum creatinine >ULN, eGFR <80 mL/min/1.73 m², abnormal TSH, or other clinically relevant abnormal values.
• Positive drug abuse test at screening or admission.
• Positive HBsAg, anti-HCV, or HIV antibody at screening.
• Clinically significant psychiatric, cardiovascular, renal, hepatic, or chronic respiratory disease, including arrhythmia.
• Supine BP <90 or >140 mmHg systolic, or <50 or >90 mmHg diastolic after 5 minutes supine.
• Supine pulse <50 bpm or >100 bpm after 5 minutes supine.
• Personal or family history of long QTc syndrome, sudden cardiac death, or hERG mutation.
• Severe adverse reaction or hypersensitivity to any drug or excipients.
• Blood donation or loss >400 mL within 3 months or hemoglobin below normal limits.
• Use of prohibited medications, OTC drugs, herbal remedies, or supplements within 28 days before IMP administration.
• Received live or attenuated vaccines or systemic corticosteroids within 3 months prior to first IMP dose.
• Conditions interfering with drug absorption, distribution, metabolism, or excretion.
• Employees of sponsor/CRO or close relatives involved in the study.
• Unable to communicate meaningfully with study staff.
• QTcF >450 ms at screening or admission.
• Significant liver impairment or abnormal conjugated/direct bilirubin >ULN.
• Consumption of methylxanthines (tea, coffee, chocolate), quinine-containing drinks, grapefruit, Seville oranges, poppy seeds, or alcohol within protocol-defined windows before IMP administration.
• Investigator judges subject unfit for any reason.
• Positive SARS-CoV-2 RT-PCR within 4 weeks prior to screening.
• COVID-19 symptoms within 14 days prior to screening.
• Severe COVID-19 history (e.g., ECMO, mechanical ventilation).
• Unable to attend in-person visits per site COVID guidelines.
• Scheduled to receive COVID-19 vaccination within 2 weeks before or after IMP administration.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Placebo Comparator: Placebo	Drug: Placebo; Sterile 0.9% sodium chloride solution, administered once intravenously or subcutaneously on Day 1, matching the route of the investigational product.
Experimental: KINE-101	Drug: KINE-101; KINE-101 injection, 12.5 mg/mL, administered once either intravenously (10 mg, 30 mg, 100 mg, or 300 mg) or subcutaneously (96.8 mg) on Day 1, depending on cohort.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence of Adverse Events (AEs)	Incidence, severity, and relationship of treatment-emergent adverse events following single ascending doses of KINE-101.	Day 1 to Day 42
Number of Participants with Clinically Significant Abnormal Hematology	Count of participants with clinically significant abnormal hematology findings (e.g., white blood cell count, hemoglobin, platelet count), as defined per protocol.	Day 1 to Day 42
Number of Participants with Clinically Significant Abnormal Clinical Chemistry	Count of participants with clinically significant abnormal clinical chemistry findings (e.g., ALT, AST, creatinine), as defined per protocol.	Day 1 to Day 42
Number of Participants with Clinically Significant Abnormal Urinalysis	Count of participants with clinically significant abnormal urinalysis findings (e.g., bilirubin, glucose, pH and specific gravity), as defined per protocol.	Day 1 to Day 42
Number of Participants with Clinically Significant Abnormal Vital Signs	Count of participants with clinically significant abnormal vital sign findings (e.g., systolic and diastolic blood pressure, pulse, body temperature, respiratory rate), as defined per protocol.	Day 1 to Day 42
Number of Participants with Clinically Significant Abnormal Electrocardiogram	Count of participants with clinically significant abnormal 12-lead electrocardiogram findings (e.g., PR interval, QRS interval, QT interval), as defined per protocol.	Day 1 to Day 42
Number of Participants with Clinically Significant Abnormal Physical Examination	Count of participants with clinically significant abnormal physical examination findings, as defined per protocol.	Day 1 to Day 42
Local Tolerability and Injection/Infusion Site Reactions	Local tolerability and pain assessed using the Numerical Rating Scale (NRS; 0 = no pain, 10 = worst possible pain). Higher scores indicate worse outcomes, as defined per protocol.	Day 1 to Day 42

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Peak Plasma Concentration of KINE-101 (Cmax)	Maximum observed plasma concentration of KINE-101.	From predose on Day 1 through 24 hours postdose (Day 2)
Time to Peak Plasma Concentration of KINE-101 (Tmax)	Time to reach the maximum observed plasma concentration of KINE-101.	From predose on Day 1 through 24 hours postdose (Day 2)
Area Under the Plasma Concentration-Time Curve to Last Quantifiable Concentration (AUClast)	Area under the plasma concentration-time curve of KINE-101 from predose to the time of the last quantifiable concentration.	From predose on Day 1 through 24 hours postdose (Day 2)
Area Under the Plasma Concentration-Time Curve Over the Dosing Interval (AUCtau)	Area under the plasma concentration-time curve of KINE-101 from predose over the dosing interval following single ascending doses.	From predose on Day 1 through 24 hours postdose (Day 2)
Area Under the Plasma Concentration-Time Curve Extrapolated to Infinity (AUCinf)	Area under the plasma concentration-time curve of KINE-101 from predose extrapolated to infinite time.	From predose on Day 1 through 24 hours postdose (Day 2)

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Pharmacodynamics of KINE-101 following single ascending doses	Pharmacodynamic assessments include changes from baseline in cytokines (such as IL-6, IL-10, CXCL13, IgM, IgG) and immunophenotyping markers (such as CD4+, CD25+, FoxP3+, CD39high, CTLA-4+, CD69+) to evaluate target engagement and explore PK/PD relationships.	From predose on Day 1 through Day 28

Collaborators and Investigators

• Sponsor: Kine Sciences Co., Ltd.
• Investigators: Study Director: Hanna Park, Kine Sciences Co., Ltd.

Study record dates

Study Major Dates

• Study Start (Actual): November 5, 2021
• Primary Completion (Actual): January 31, 2023
• Study Completion (Actual): January 31, 2023

Study Registration Dates

• First Submitted: December 10, 2025
• First Submitted That Met QC Criteria: January 6, 2026
• First Posted (Actual): January 15, 2026

Study Record Updates

• Last Update Posted (Actual): January 15, 2026
• Last Update Submitted That Met QC Criteria: January 6, 2026
• Last Verified: January 1, 2026

More Information

Terms related to this study

• Other Study ID Numbers: RA101-CR3-001

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No