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Study of MT-302 in Adults With Advanced or Metastatic Epithelial Tumors

PHASE1RECRUITING

MYE Symphony is a multicenter, open-label, Phase 1 first-in-human study to assess the safety, tolerability, and define the RP2D of MT-302 in participants with advanced epithelial cancer.

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Study details:

The study has 4 Cohorts. Each Cohort has 4 Cycles. For Cohorts 1-3, the dosing regimen will be every 14 days for 3 doses, followed by administration once every 28 days for three doses.

For Cohort 4, the dosing regimen will be modified. Participants will receive one dose of MT-302 every week for 3 doses, followed by administration once every 28 days for three additional doses. A Safety Review Committee (SRC) will provide oversight for this study.

The primary responsibility of the SRC is to safeguard study participants by reviewing and assessing the clinical safety data being collected during the conduct of the study.

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Eligibility criteria

Researchers look for people who fit a certain description, called eligibility criteria. See if you qualify.

Inclusion criteria

Adults age ≥ 18 inclusive at the time the Informed Consent Form (ICF) is signed.

Histologically proven, metastatic or advanced epithelial cancer including the following cancer types: Urothelial, Cervical, Ovarian epithelial, Triple-negative breast, HR+/HER2- breast, Pancreatic ductal adenocarcinoma, Gastric adenocarcinoma, Esophageal carcinoma, Non-small cell lung, Colorectal.

Progressive disease at baseline, refractory or relapsed to standard of care or who have declined standard therapy.

Measurable disease based on Response Evaluation Criteria in Solid Tumors (RECIST) criteria v 1.1.

Eastern Cooperative Oncology Group (ECOG) performance status grade of 0 or 1.

Life expectancy of > 12 weeks.

Echocardiogram (ECHO) or multiple gated acquisition scan showing an ejection fraction greater than or equal to 50%.

Electrocardiogram (ECG) showing no clinically significant abnormality at Screening or showing an average QTc interval < 450 msec in males and < 470 msec in females (< 480 msec for participants with bundle branch block). Either Fridericia's or Bazett's formula may be used to correct the QT interval.

Oxygen saturation of greater than or equal to 90% on room air measured by pulse oximetry.

Adequate organ function as defined by laboratory values at Screening.

Willing and able to provide written informed consent.

Willing to perform and comply with all study procedures including undergoing study-related biopsies and attending clinic visits as scheduled.

Men must abstain from sperm donation during study treatment or for 4 months following last dose of study treatment.

Men and WOCBP must be willing to practice a highly effective method of contraception.

Exclusion criteria

Known active CNS metastasis and/or carcinomatous meningitis. Participants with previously treated brain metastases may participate provided they are radiologically stable, (ie, without evidence of progression for at least 4 weeks by repeat imaging), clinically stable, and without requirement of steroid treatment for at least 14 days prior to the first dose of study intervention.

Pregnant or nursing women.

Must be > 28 days beyond major surgery, including hepatectomy or joint replacement.

Prior allogeneic bone marrow transplantation or solid organ transplant.

Spinal cord compression not definitively treated with surgery and/or radiation.

Uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures.

Any acute illness including fever (> 100.4° F or > 38° C) within 7 days prior to Day 1.

Active systemic bacterial, fungal, or viral infection within 7 days prior to Day 1. Participant cannot have tested positive for COVID-19 within 7 days prior to Day 1.

Active infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV).

Other primary malignancies, except: adequately treated basal cell or squamous cell carcinoma; in situ carcinoma of the cervix or bladder, treated curatively and without evidence of recurrence for at least 2 years prior to the study; or a primary malignancy which has been completely resected and in complete remission for at least 2 years.

History of (noninfectious) pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease.

Prior grade > 3 immune-related AEs such as pneumonitis, colitis, hepatitis, nephritis; prior dermatitis and endocrinopathies are allowed provided corticosteroids are no longer required and endocrine-replacement therapy is stable and discontinued from prior therapy.

Active autoimmune disease not related to prior therapy for primary malignancy that has required systemic therapy in the last 1 year.

History of symptomatic congestive heart failure (New York Heart Association classes II-IV) or serious active arrhythmias or other clinically significant cardiac disease within 12 months of enrollment.

Toxicity from previous anti-cancer therapy defined as toxicities (other than alopecia, or laboratory values listed above) not yet resolved to NCI CTCAE v5.0 Grade ≤ 1 or baseline. Participants with chronic Grade 2 toxicities (eg, peripheral neuropathy, laboratory values) may be eligible per the discretion of the Investigator and Medical Monitor.

Has received: Radiotherapy within 2 weeks of first administration of MT-302; Cytotoxic chemotherapy for treatment of the primary malignancy within 28 days or 5 half-lives, whichever is shorter, of administration of MT-302; Immune therapy for primary malignancy (eg, monoclonal antibody therapy, checkpoint inhibitors) within 28 days or 5 half-lives, whichever is shorter of first administration of MT-302; Targeted therapies for primary malignancy within 28 days or 5 half-lives, whichever is shorter, of first administration of MT-302; Anti-cancer vaccine within 12 weeks of first administration of MT-302; COVID-19 mRNA vaccine within 6 weeks of first administration of MT-302.

Has received a live vaccine ≤ 6 weeks prior to first administration of MT-302.

Has received packed red blood cells or platelet transfusion within 2 weeks prior to first administration of MT-302.

History of an allergic reaction to any of the excipients.

Enrollment in another interventional clinical trial within 28 days or 5 half-lives of the drug, whichever is shorter, of first administration of MT-302.

Any other condition that, in the opinion of the Investigator, would make the participant unsuitable for the study or unable to comply with the study requirements.

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Eligibility

Age eligible for study : 18 and older

Healthy volunteers accepted : No

Gender eligible for study: All

Things to know

Study dates

Study start: 2023-08-02

Primary completion: 2027-08-31

Study completion finish: 2028-08-31

Study type

TREATMENT

Phase

PHASE1

Trial ID

NCT05969041

Intervention or treatment

DRUG: MT-302 (A)

Conditions

• Epithelial Tumors, Malignant

Image related to Epithelial Tumors, Malignant

Condition: Epithelial Tumors, Malignant
DRUG: MT-302 (A)
Randwick, New South Wales, Australia and more
Sponsor: Myeloid Therapeutics

You may be eligible to participate in this trial based on your search. Check eligibility by answering some questions.

Are you running this trial? If you're a clinic or sponsor, you can claim this study. Claim or learn more.

Find a site

Closest Location:

Scientia Clinical Research Ltd

Research sites nearby

Select from list below to view details:

Scientia Clinical Research Ltd
Randwick, New South Wales, Australia
Westmead Hospital
Westmead, New South Wales, Australia
St Vincent's Public Hospital Sydney
Darlinghurst, New South Wales, Australia
Souther Oncology Clinical Research Unit (SOCRU)
Bedford Park, South Australia, Australia

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Participant Group/Arm	Intervention/Treatment
EXPERIMENTAL: A (MT-302) Participants will receive MT-302 through intravenous infusion.	DRUG: MT-302 (A) MT-302 is an investigational drug

What is the study measuring?

Primary outcome

Primary Outcome Measure	Primary Outcome Description	Primary Outcome Time Frame
To evaluate the safety and tolerability of MT-302 through incidence of Adverse Events	Adverse Events will be graded according to the NCI-CTCAE, version 5.0	Up to Week 20
To establish the maximum tolerated dose (MTD)	based on dose limiting toxicities (DLTs) and the recommended Phase 2 dose (RP2D)	Up to Week 20

Secondary outcome

Secondary Outcome Measure	Secondary Outcome Description	Secondary Outcome Time Frame
To further characterize the safety of MT-302 through incidence of Adverse Events	Adverse Events will be graded according to the NCI-CTCAE, version 5.0	Up to Week 20
To assess the pharmacokinetics (PK) of MT-302	PK parameter: Plasma concentrations	Up to Week 20
To assess the pharmacokinetics (PK) of MT-302	PK parameter: Area under curve (AUC0-last, AUC 0-∞)	Up to Week 20
To assess the pharmacokinetics (PK) of MT-302	PK parameter: Time of maximum observed plasma concentration (tmax)	Up to Week 20
To assess the pharmacokinetics (PK) of MT-302	PK parameter: Apparent terminal Half-life (t1/2)	Up to Week 20
To assess the pharmacokinetics (PK) of MT-302	PK parameter: Plasma Clearance (CL)	Up to Week 20
To assess the pharmacokinetics (PK) of MT-302	PK parameter: Volume of Distribution (Vd)	Up to Week 20
To assess the pharmacokinetics (PK) of MT-302	PK parameter:Mean residence time (MRT)	Up to Week 20
To assess the pharmacokinetics (PK) of MT-302	PK parameter: terminal rate constant ( λz)	Up to Week 20
Determine rate of ICANS	For grading of potential immune effector cell-associated neurotoxicity syndrome (ICANS), use of the 10-point immune effector cell-associated encephalopathy (ICE) screening tool	Up to Week 20
Determine rate of Grade 3-5 CRS	ASCO CRS Grading	Up to Week 20

Frequently Asked Questions

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You may be eligible to participate in this trial based on your search.Apply for study

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References

Clinical Trials Gov: Study of MT-302 in Adults With Advanced or Metastatic Epithelial Tumors