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HER2-positive Solid CancersPhase 1MT-5111NCT04029922

Study of MT-5111 in HER2-positive Solid Tumors

A Phase 1 study testing MT-5111 (experimental study drug) in people with HER2-positive Solid Cancers, run by Molecular Templates, Inc. at 30 sites in 3 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This will be a Phase 1b, first in human, open-label, dose escalation and expansion study of MT-5111 (a recombinant fusion protein) given as monotherapy in subjects with HER2-positive solid tumors Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
HER2-positive Solid Cancers
What is being tested?
MT-5111 (experimental study drug)
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
30 sitesin 3 countries
Study dates
12 Nov 2019to 27 Apr 2023
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Histologically confirmed, unresectable, locally advanced or metastatic solid cancers:
  • Part A (Dose-Escalation): All HER2-positive solid cancers are eligible
  • Part B (Dose-Expansion): Any type of HER2-positive solid cancer, including breast cancer, and gastric or gastroesophageal adenocarcinomas (GEA).
  • HER2-positive in the latest tumor sample tested for HER2 (testing to be done on a metastatic lesion in cases of metastatic cancers).
  • Relapsed or refractory to or intolerant of existing therapy(ies)
  • At least 1 measurable or evaluable lesion according to RECIST 1.1 (Subjects with evaluable disease only may be included in the dose escalation phase)
Show all 19Show fewer
  • ECOG performance score of ≤ 1
  • Adequate Bone marrow function as determined by:
  • Absolute neutrophil count (ANC) ≥ 1,000/mm3
  • Platelet count ≥ 75,000 mm³ and
  • Hemoglobin ≥ 8.0 g/dL
  • Red blood cell transfusion within 2 weeks of study treatment start is allowed if hemoglobin levels remain stable
  • Kidney function:
  • Creatinine clearance (CLcr) ≥ 50 mL/min either measured or estimated using the Cockcroft-Gault formula
  • Cardiac Function:
  • Left ventricular ejection fraction (LVEF) ≥ 55% on the echocardiogram (ECHO) assessment (preferred), or multigated acquisition (MUGA) scan, and QTcF ≤ 480 ms for women and QTcF ≤ 450 ms for men [average from three QTcF values on the triplicate 12-lead electrocardiogram (ECG)] at baseline
  • Hepatic function:
  • Total bilirubin ≤ 1.5 x ULN, or ≤ 3 x ULN for subjects with Gilbert's Syndrome and
  • AST ≤ 3 x ULN (or ≤ 5 x ULN if liver metastasis) and ALT ≤ 3 x ULN (or ≤ 5 x ULN if liver metastasis)

Who cannot join

  • History or current evidence of another tumor that is histologically distinct from the tumor under study
  • Current evidence of new or growing CNS metastases during screening
  • Subjects with known CNS metastases will be eligible if they meet protocol specified criteria
  • Evidence of CTCAE Grade >1 toxicity before the start of treatment, except for hair loss and those Grade 2 toxicities listed as permitted in other eligibility criteria
  • History or evidence of significant cardiovascular disease
  • Current evidence of active, uncontrolled hepatitis B virus, hepatitis C virus, human immunodeficiency virus (HIV) (evidenced by detectable viral load by PCR) or acquired immunodeficiency syndrome (AIDS) related illness
  • Current evidence of ≥ grade 2 underlying pulmonary disease
  • Certain exclusionary prior treatments

Trial locations and contacts

30 sites in 3 countries.

30 sites in 3 countries

United States23 sites
  • University of Michigan

    Ann Arbor, Michigan, 48109

  • Novant Health Cancer Institute

    Charlotte, North Carolina, 28204

  • Northwestern University

    Chicago, Illinois, 60611

  • University of Chicago Medical Center

    Chicago, Illinois, 60637

  • Sylvester Comprehensive Cancer Center (University of Miami)

    Coral Gables, Florida, 33146

  • Mary Crowley Cancer Research

    Dallas, Texas, 75251

  • Sarah Cannon Research Institute

    Denver, Colorado, 80218

  • St. Joseph Heritage Healthcare

    Fullerton, California, 92835

  • Prisma Health

    Greenville, South Carolina, 29605

  • South Broward Hospital District d/b/a Memorial Healthcare System

    Hollywood, Florida, 33021

  • Mayo Clinic (Florida)

    Jacksonville, Florida, 32224

  • Cancer and Blood Specialty Clinic

    Los Alamitos, California, 90720

  • Sarah Cannon Research Institute

    Nashville, Tennessee, 37203

  • Orlando Health

    Orlando, Florida, 32806

  • South Broward Hospital District d/b/a Memorial Healthcare System

    Pembroke Pines, Florida, 33024

  • Mayo Clinic (Arizona)

    Phoenix, Arizona, 85054

  • BRCR Medical Center

    Plantation, Florida, 33322

  • Mayo Clinic (Minnesota)

    Rochester, Minnesota, 55905

  • The University of Texas Health Science Center

    San Antonio, Texas, 78229

  • Cedars-Sinai Medical Center

    Santa Monica, California, 90048

  • UCLA Hematology & Oncology

    Santa Monica, California, 90404

  • Washington University

    St Louis, Missouri, 63130

  • Novant Health Forsyth Medical Center

    Winston-Salem, North Carolina, 27103

Other trials in United States

Australia6 sites
  • Cancer Research South Australia

    Adelaide, South Australia, 5000

  • Southern Highlands Cancer Centre

    Bowral, New South Wales, 2576

  • St. Vincent's Hospital Melbourne

    Fitzroy, Melbourne, VIC, 3065

  • Macquarie University Hospital (Clinical Trials Unit)

    Macquarie, New South Wales, 2109

  • Sunshine Hospital - Western Health

    Saint Albans, Victoria, 3021

  • Goulburn Valley Health

    Shepparton, Victoria, 3630

Other trials in Australia

New Zealand1 site
  • New Zealand Clinical Research (Christchurch)

    Christchurch, 8011

Other trials in New Zealand

About this study

Official title: A Phase 1 Open-label, Multicenter Dose Escalation and Expansion Study of MT-5111 in Subjects With Previously Treated Advanced HER2-positive Solid Tumors

This will be a Phase 1b, first in human, open-label, dose escalation and expansion study of MT-5111 (a recombinant fusion protein) given as monotherapy in subjects with HER2-positive solid tumors

Read the detailed description

This study will be conducted in two parts:

Part A (Dose Escalation): The purpose of Part A is to determine the maximum tolerated dose (MTD) or recommended Phase 2 dose (RP2D). Part A will include any type of HER2-positive solid cancer.

Part B (Dose Expansion): The purpose of Part B is to confirm the safety and tolerability of MT-5111 doses selected from those explored in Part A including the MTD or RP2D. Part B will include 3 types of HER2-positive solid cancers in the following 3 expansion groups: Group B1: Breast cancer; Group B2: gastric or gastroesophageal adenocarcinomas (GEA); and Group B3: Other HER2-positive solid cancers.

The Breast Cancer cohort will start enrolling in parallel to Part A.

Up to 178 eligible subjects will be identified and treated through competitive enrollment at multiple study centers globally

In Parts A and B of the study, a subject may participate for the following four periods:

Screening (up to 28 days before first dose of MT-5111)

Treatment period (active period where a subject will receive three weekly doses of MT-5111 over a 21-day treatment cycle)

Short-term Follow-up (30 days after last dose of MT-5111)

Long-term follow-up (up to 24 months after the last dose of MT-5111)

MT-5111 will be given as an intravenous (IV) infusion over about 30 minutes on the same day every week (i.e., on day 1, day 8 and day 15 of each cycle, a cycle being defined as 21 days). A subject can continue receiving MT-5111 as long as it is well-tolerated, their disease has not worsened, or until the subject decides they no longer want to participate in the study.

Being tested
MT-5111 (experimental study drug)

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MT-5111 (experimental study drug)Drug

    Experimental treatment with MT-5111

Study groups in NCT04029922
Study groupRoleWhat they receive
Part A- Dose EscalationExperimentalPart A- Dose Escalation in patients with previously treated advanced HER2-positive solid tumors. The assigned dose level of MT-5111 will be given as an intravenous (IV) infusion over about 30 minutes on the same day every week (i.e., on day 1, day 8 and day 15 of each cycle).
Receives: Drug: MT-5111 (experimental study drug)
Part B- Dose ExpansionExperimentalPart B - Dose Expansion in previously treated HER2-positive breast, GEA and other HER2-positive solid cancers Part B will include 3 expansion groups: Group B1 (Breast Cancer) will begin enrolling while Part A is being conducted following the completion of Cohort 7 and Subsequent cohort of subjects in group B1 may enroll into higher doses that are tolerated in Part A. Group B2 (GEA) and Group B3 (Other HER-2 positive solid cancer groups) will begin enrollment after the MTD or RP2D is determined in Part A. The assigned dose level of MT-5111 will be given as an intravenous (IV) infusion over about 30 minutes on the same day every week (i.e., on day 1, day 8 and day 15 of each cycle).
Receives: Drug: MT-5111 (experimental study drug)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To evaluate safety and determine the maximum tolerated dose (MTD) or recommended phase 2 dose (RP2D)

    Evaluation of safety of MT-5111 as measured by number of subjects with adverse events using Common Terminology Criteria for Adverse Events (CTCAE) v 5.0

    Measured: 21 day cycle

  2. To evaluate tolerability and determine the maximum tolerated dose (MTD) or recommended phase 2 dose (RP2D)

    Evaluation of tolerability of MT-5111 as measured by number of subjects with dose limiting toxicities (DLTs)

    Measured: 21 day cycle

Secondary outcomes (6)
  1. PK as measured by concentrations of free MT-5111 (Maximum Plasma Concentration [Cmax])

    Evaluation of the pharmacokinetic profile of MT-5111

    Measured: Day 1, Day 8, and Day 15 in Each 21-Day cycle

  2. PK as measured by concentrations of free MT-5111 (Time to reach maximum concentration after drug administration [Tmax])

    Evaluation of the pharmacokinetic profile of MT-5111

    Measured: Day 1, Day 8, and Day 15 in Each 21-Day cycle

  3. PK as measured by concentrations of free MT-5111 (Area Under the Curve [AUC])

    Evaluation of the pharmacokinetic profile of MT-5111

    Measured: Day 1, Day 8, and Day 15 in Each 21-Day cycle

  4. To evaluate the tumor response to MT-5111

    Objective response rate (ORR) defined as the proportion of subjects with either a complete response or a partial response as determined by investigator assessment

    Measured: Screening, approximately every 6 weeks, at End of Treatment and 30 days after the last dose

  5. To evaluate the immunogenicity of MT-5111

    Immunogenicity as measured by MT-5111 (anti-drug antibody [ADA] titer)

    Measured: Screening (baseline), Day 1 of each 21 day cycle, at the End of Treatment and the Follow-up Visit

  6. To evaluate the immunogenicity of MT-5111

    Immunogenicity as measured by MT-5111 (neutralizing antibody [NAb])

    Measured: Screening (baseline), Day 1 of each 21 day cycle, at the End of Treatment and the Follow-up Visit

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Jul 2019
  2. Study start12 Nov 2019
  3. Primary completion1 Feb 2023
  4. Study completion27 Apr 2023

Why it stopped: Study Reprioritization

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Model description
MT-5111 (active drug)
Masking
None (open label)
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04029922
Sponsor's protocol ID
MT-5111_001
Acronym
MT-5111
Status last verified
Jun 2023
First submitted
19 Jul 2019
Last updated
18 Jun 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing MT-5111 (experimental study drug) in people with HER2-positive Solid Cancers, run by Molecular Templates, Inc. at 30 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 19 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 18 Jun 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 30 sites in United States, Australia, New Zealand. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Study Reprioritization). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To evaluate safety and determine the maximum tolerated dose (MTD) or recommended phase 2 dose (RP2D) (time frame: 21 day cycle). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Jun 2023.

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