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Safety, Pharmacokinetics, and Pharmacodynamics of MTX-101 in Healthy Adults and Patients

Safety, Pharmacokinetics, and Pharmacodynamics of MTX-101 in Healthy Adults and Patients

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06324604
Enrollment
96
Registered
2024-03-22
Start date
2024-06-13
Completion date
2027-06-30
Last updated
2026-05-18

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

Conditions

Healthy Volunteers, Type 1 Diabetes

Keywords

Healthy Volunteers, Type 1 Diabetes

Brief summary

First in human study to understand the potential side effects of MTX-101, how long MTX-101 lasts in the human body, and how MTX-101 affects specific human immune cells.

Detailed description

A Phase 1, Part A -prospective, randomized, single-blind, placebo-controlled, single ascending dose (SAD) and multiple ascending dose (MAD) study to evaluate the safety, pharmacokinetics (PK), and pharmacodynamics (PD) of MTX-101 in healthy adults (HA). Part B - A multi-center, randomized, open-label study to evaluate the safety, pharmacokinetics (PK), and pharmacodynamics (PD) of MTX-101 in participants with type 1 diabetes (T1D).

Interventions

DRUGPlacebo

MTX-101

DRUGMTX-101

MTX-101 (bispecific CD8 Treg modulator)

Sponsors

Mozart Therapeutics Australia Pty Ltd
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
TRIPLE (Subject, Caregiver, Investigator)

Intervention model description

Part A will enroll Healthy Adult Volunteers will be randomized, double-blind, placebo-controlled, single ascending dose (SAD), randomized to MTX-101 or placebo in a 1:1 ratio for the first 2 participants (sentinel dosing) and a 3:1 ratio thereafter. Participants in the multiple ascending dose (MAD) will be randomized in a 3:1 ratio and be dosed on Days 1 and 22. Part B of this study plans to enroll at least 24 (up to 44) participants with CeD or T1D, randomized in a 1:1 ratio, in 2 sequential cohorts. Approximately 12 CeD and 12 T1D patients will be enrolled in Part B, with the option to enroll up to a maximum of 44 total (T1D patients). Participants in Cohort B8 will be dosed with MTX-101 on Days 1 & 29. Participants in Cohort B9 will be dosed with MTX-101 or placebo on Day 1 and MTX-101 on Day 29. Patients will be followed for 6 months after the first dose.

Eligibility

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

Inclusion criteria

* Adults, age ≥ 18 and ≤ 65 years at the time of anticipated dosing (Day 1). * Healthy individuals without known current or chronic medical conditions, including no history of any autoimmune diseases, in the opinion of the Investigator. * Body mass index (BMI) ≥ 18 kg/m2 and ≤ 35 kg/m2 AND body weight ≥ 55 and ≤ 120 kg. * Negative Coronavirus Disease 2019 (COVID-19) test within 24 hours prior to each dose. * Persons of child-bearing potential must have a negative pregnancy test and either abstain from sex or use highly effective method(s) of birth control from Day 1 through the duration of the study.

Exclusion criteria

* Clinically significant findings in physical examination (PE), vital signs (blood pressure, heart rate, and body temperature), electrocardiogram (ECG), and safety laboratory parameters at Screening in the opinion of the Investigator. * Prior or concurrent malignancies. * Renal function calculated by the Chronic Kidney Disease-Epidemiology (CKD-EPI) equation with estimated glomerular filtration rate (eGFR) \< 90 mL/min/1.73 m2 or abnormal level of proteinuria detected by dipstick at the time of Screening. * Any disease or condition that, in the opinion of the Investigator, might significantly compromise the cardiovascular, hematological, renal, hepatic, pulmonary (including chronic asthma), endocrine (e.g., diabetes), central nervous, or gastrointestinal (including an ulcer) systems. * Receipt of an investigational drug within 28 days or 5 half-lives (whichever is longer) of the investigational drug(s) prior to Day 1. * Positive serology for human immunodeficiency virus (HIV) type 1 or 2, hepatitis (Hep) B surface antigen, or Hep C. * Positive test results for drug screen, including alcohol, at the time of Screening or on Day 1 prior to randomization. * Use of tobacco or nicotine-containing products more than the equivalent of 5 cigarettes/week within 30 days prior to (first) dosing. Participants must abstain from nicotine use while inpatient. * History of receiving a live vaccine within 1 month of Screening. * History of splenectomy. * History of COVID or influenza vaccine within 2 weeks prior to Screening. * Planning to receive any vaccinations during the study period. * History of recurrent infections of uncertain cause.

Design outcomes

Primary

MeasureTime frameDescription
Safety of single, ascending dose levels of MTX-101Enrollment to 8 weeks post doseAssess the safety of single, ascending dose levels of MTX-101 by evaluating the incidence, severity, and seriousness of treatment-emergent adverse events
Safety of multiple, ascending dose levels of MTX-101Enrollment to 11 weeks following the last doseAssess the safety of multiple, ascending dose levels of MTX-101by evaluating the incidence, severity, and seriousness of treatment-emergent adverse events

Secondary

MeasureTime frameDescription
pharmacokinetics (PK) of MTX-101Enrollment to 11 weeks following the last doseCharacterize the pharmacokinetics (PK) of MTX-101 by measuring the maximum time of occurrence for maximum plasma drug concentration (Cmax)
anti-drug antibody (ADA) formationEnrollment to 11 weeks following the last doseEvaluate incidence of anti-drug antibody (ADA) formation by measuring the detect the presence of anti-MTX-101 antibodies in participant's blood.

Countries

Australia

Contacts

CONTACTHeather Director, Clinical Operations
hwroe@mozart-tx.com1-253-358-9586

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 19, 2026