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First-in-Human Study of IMGC936 in Patients With Advanced Solid Tumors

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT04622774
Recruitment Status : Recruiting
First Posted : November 10, 2020
Last Update Posted : January 20, 2021
Information provided by (Responsible Party):
ImmunoGen, Inc.

Brief Summary:
This study is a Phase 1, first-in-human, open-label, dose-escalation study designed to characterize the safety, tolerability, pharmacokinetics, pharmacodynamics, immunogenicity, and preliminary antitumor activity of IMGC936 administered by intravenous (IV) infusion.

Condition or disease Intervention/treatment Phase
Advanced Solid Tumor Drug: IMGC936 Phase 1

Detailed Description:

This is an open label, dose escalation study to determine the Maximum Tolerated Dose (MTD) and select the recommended phase 2 dose. Dose escalation follows a conventional 3+3 design; successive cohorts of 3 to 6 participants each will be evaluated in sequential escalating doses of single-agent IMGC936.

Participants with relapsed or refractory, unresectable locally advanced or metastatic solid tumors including non-squamous non-small cell lung cancer (NSCLC), triple-negative breast cancer (TNBC), colorectal cancer (CRC), gastroesophageal cancer, or pancreatic cancer will be enrolled.

IMGC936 is administered via intravenous (IV) infusion on Day 1 of Cycle 1 and every subsequent 21-day cycle thereafter, at the assigned dose for each cohort. Infusion duration will vary depending on dose and participant tolerability. Sentinel dosing will be used for the first 2 dose levels. The first administration of IMGC936 in participants at the first 2 dose levels of dose escalation will be staggered by at least 48 hours. The dose-limiting toxicity (DLT) evaluation period is 21 days. Participants may continue on study drug until disease progression, adverse event (AE) requiring discontinuation, DLT during evaluation window, pregnancy, death, investigator decision, lost to follow up (LTFU), major protocol deviation requiring discontinuation, withdrawal of consent, or sponsor, investigator or regulatory agency terminates the study.

Tumor assessments are performed every 6 weeks (Q6W) for the first 6 months on study drug then every 12 weeks (Q12W). Tumor assessments continue until discontinuation criteria are met. If feasible, participants who discontinue study drug for reasons other than progressive disease (PD) (e.g., toxicity) should continue to undergo tumor assessments Q12W as post-treatment follow up until evidence of PD, initiation of another anticancer therapy, withdrawal of consent, LTFU, death, or end of study. Post-treatment follow up also includes following ongoing treatment emergent adverse events (TEAEs) until the even has resolved to baseline grade, the event is assessed by the investigator as stable, initiations of another anticancer therapy, withdrawal of consent, LTFU, death, or it has been determined that study drug or participation is not the cause of the AE.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 42 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase 1, First-in-Human, Open-Label, Dose-Escalation Study of IMGC936 (Anti-ADAM9 Antibody Drug Conjugate) in Patients With Advanced Solid Tumors
Actual Study Start Date : October 26, 2020
Estimated Primary Completion Date : July 13, 2021
Estimated Study Completion Date : October 5, 2021

Arm Intervention/treatment
Experimental: IMGC936
Single-arm. IMGC936 administered every 3 weeks.
Drug: IMGC936
Antibody Drug Conjugate

Primary Outcome Measures :
  1. Incidence and severity of Treatment Emergent Adverse Events by CTCAE v5.0 [ Time Frame: From screening to end of study (approximately up to 2 years) for each patient ]
    Number of treatment emergent adverse events as assessed by CTCAE v5.0

  2. To characterize dose-limiting toxicities (DLTs) [ Time Frame: DLT evaluation period is through cycle 1 (21 days) ]
    Incidence of DLTs

Secondary Outcome Measures :
  1. To characterize study drug concentration [ Time Frame: There are 9 blood draw collection time points at Cycles 1 and 3, 3 blood draw time points at Cycles 2,4,5 and 6, and collection at every 3 cycles after cycle 6 until end of study (approximately up to 2 years). Each cycle is 21 days. ]
    Study drug concentration

  2. To measure the concentration of anti-drug antibody [ Time Frame: There are 2 collection time points at Cycles 1 and 3, 1 collection time point at Cycles 2, 4, 5 and 6, and and collection at every 3 cycles after cycle 6 until end of study (approximately up to 2 years). Each cycle is 21 days. ]
    Anti-drug antibody

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Participants with histologically proven, relapsed or refractory, unresectable locally advanced or metastatic non-squamous non-small cell lung cancer (NSCLC), triple-negative breast cancer (TNBC), colorectal cancer (CRC), gastroesophageal cancer, or pancreatic cancer for whom no therapy with demonstrated clinical benefit is available.
  2. Either measurable or non-measurable disease per RECIST 1.1 and documented by computed tomography (CT) and/or magnetic resonance imaging (MRI) obtained during screening.
  3. Age ≥ 18 years old.
  4. Archival formalin-fixed paraffin-embedded (FFPE) tissue must be available. Participants may undergo a fresh tumor biopsy using a low risk, medically routine procedure to obtain a specimen for testing if a tumor sample is not available.
  5. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
  6. Life expectancy ≥ 12 weeks.
  7. Acceptable laboratory parameters as follows:

    • Platelet count ≥ 75 × 1000/μL without transfusion within 28 days prior to initiation of study drug.
    • Absolute neutrophil count ≥ 1.5 × 1000/μL in the absence of any growth factor support within 21days prior to initiation of study drug.
    • Alanine aminotransferase (ALT)/aspartate aminotransferase (AST) ≤ 3.0 × upper limit of normal (ULN); for participants with hepatic metastases, ALT and AST ≤ 5 × ULN.
    • Total bilirubin ≤ 1.5 × ULN, except participants with Gilbert's syndrome, who may enroll if the conjugated bilirubin is within normal limits.
    • Creatinine < 2 mg/dL, or a calculated creatinine clearance (based on the Cockcroft-Gault formula) or measured creatinine clearance > 50 mL/min.
    • Urinalysis protein ≤ 150 mg/d, red blood cells ≤ 2-5 per high powered field, and white blood cells ≤ 2-5 per high powered field.
    • Negative serum pregnancy test for females of childbearing potential (FOCBP).
  8. FOCBP, defined as not surgically sterilized (hysterectomy, bilateral salpingectomy, and bilateral oophorectomy) and between menarche and 1-year post menopause, must have a negative serum pregnancy test performed within 72 hours prior to initiation of study drug administration. Female participants must abstain from egg donation during the study.
  9. FOCBP and male participants with partners of FOCBP must agree to use highly effective methods of contraception, from the time of consent through 28 weeks after discontinuation of study drug administration. Male participants must abstain from sperm donation during the study.
  10. FOCBP is not pregnant or breastfeeding, or a male participant is not expecting to father children within the projected duration of the study, starting with screening visit through 28 weeks after the last dose of study drug.

Exclusion Criteria:

  1. Participants with history of prior central nervous system (CNS) metastasis must have been treated, must be asymptomatic, and must not have any of the following at the time of enrollment:

    • No concurrent treatment for the CNS disease (e.g., surgery, radiation, corticosteroids > 10 mg prednisone/day or equivalent).
    • No progression of CNS metastases on MRI or CT for at least 21 days after last day of prior therapy administered within the prior 6 months for the CNS metastases.
    • No concurrent leptomeningeal disease or spinal cord compression.
  2. Active or chronic corneal disorders, history of corneal transplantation, or active ocular conditions requiring ongoing treatment/monitoring, such as uncontrolled glaucoma, wet age-related macular degeneration requiring intravitreal injections, active diabetic retinopathy with macular edema, macular degeneration, presence of papilledema, and/or monocular vision.
  3. Any investigational drug within 4 weeks prior to initiation of study drug.
  4. Participants must have completed prior therapy within the specified times below:

    • Systemic antineoplastic therapy at least 5 half-lives or 4 weeks (whichever is shorter) prior to initiation of study drug.
    • Mediastinal or pelvic radiation therapy within 6 weeks prior to initiation of study drug administration. Palliative, limited field radiation for symptom control to soft tissues, or bone lesions within 2 weeks prior to initiation of study drug.
  5. Participants must have stabilized or recovered (Grade 1 or baseline) from all prior therapy-related toxicities (except alopecia).
  6. Clinically significant cardiovascular disease including but not limited to:

    • Myocardial infarction or unstable angina within 6 months prior to initiation of study drug.
    • Stroke or transient ischemic attack within 6 months prior to initiation of study drug.
    • Current clinically significant cardiac arrhythmias, e.g., atrial fibrillation that are not well controlled with optimal medical intervention.
    • Current uncontrolled hypertension: systolic blood pressure > 160 mmHg, diastolic blood pressure > 100 mmHg.
    • Current congestive heart failure (New York Heart Association class III-IV).
    • Current pericarditis or clinically significant pericardial effusion.
    • Current myocarditis.
    • Baseline left ventricular ejection fraction (LVEF) of < 50% by echocardiography or multigated acquisition (MUGA) scan.
    • QTcF or QTcB > 480 milliseconds calculated from the average of 3 repeat electrocardiogram (ECGs) obtained at approximately 1-minute intervals.
  7. Clinically significant pulmonary compromise, including pneumonia, pneumonitis, or a requirement for supplemental oxygen use to maintain adequate oxygenation or history of ≥ Grade 3 drug-induced or radiation pneumonitis.
  8. Serious concurrent illness or clinically relevant active infection, including, but not limited to the following:

    • Active hepatitis B or C infection (whether or not on active antiviral therapy).
    • Human immunodeficiency virus infection.
    • Cytomegalovirus infection.
    • Active COVID-19/SARS-CoV-2 infection. While SARS-CoV-2 testing is not mandatory for study entry, testing should follow local clinical practice guidelines/standards..
    • Any other concurrent infectious disease requiring IV antibiotics within 2 weeks prior to initiation of study drug.
  9. History of prior bone marrow, stem cell, or solid organ transplantation.
  10. Second primary invasive malignancy that has not been in remission for greater than 2 years except nonmelanoma skin cancer; cervical carcinoma in situ on biopsy; or squamous intraepithelial lesion on Pap smear; localized prostate cancer (Gleason score < 6); or resected melanoma in situ.
  11. Major trauma or major surgery within 4 weeks prior to initiation of study drug.
  12. Any serious underlying medical or psychiatric condition that would impair the ability of the participant to receive or tolerate the planned treatment at the study site.
  13. Known hypersensitivity to ingredient or any excipient contained in the drug formulation
  14. Vaccination with any live virus vaccine within 4 weeks prior to initiation of study drug. Inactivated annual influenza vaccination is allowed.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT04622774

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Contact: ImmunoGen Clinical Operations 781-895-0600

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United States, Colorado
Sarah Cannon Research Institute Recruiting
Denver, Colorado, United States, 80218
Contact: Gerald Falchook, MD    720-754-2610      
United States, Massachusetts
Dana-Farber Cancer Institute Recruiting
Boston, Massachusetts, United States, 02215
Contact: DFCI Clinical Trials Hotline    1-877-DF-TRIAL      
Contact: Leena Gandhi, MD         
United States, Texas
MD Anderson Cancer Center Recruiting
Houston, Texas, United States, 77030
Contact: Vivek Subbiah, MD    713-563-1930      
Principal Investigator: Vivek Subbiah, MD         
Sponsors and Collaborators
ImmunoGen, Inc.
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Study Director: CMO ImmunoGen ImmunoGen, Inc.
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Responsible Party: ImmunoGen, Inc. Identifier: NCT04622774    
Other Study ID Numbers: IMGC936-0901
First Posted: November 10, 2020    Key Record Dates
Last Update Posted: January 20, 2021
Last Verified: November 2020

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by ImmunoGen, Inc.:
Antibody Drug Conjugate
Phase 1
Solid Tumors
Additional relevant MeSH terms:
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