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Patritumab Deruxtecan (U3-1402) in Unresectable Locally Advanced or Metastatic Breast Cancer (ICARUS-BREAST)

G

Gustave Roussy

Status and phase

Enrolling
Phase 2

Conditions

Metastatic Breast Cancer

Treatments

Drug: U3-1402

Study type

Interventional

Funder types

Other
Industry

Identifiers

NCT04965766
2020/3188 (Other Identifier)
2020-005722-28

Details and patient eligibility

About

This study aims to evaluate the efficacy and safety of U3-1402 in participants with advanced breast cancer (ABC). Participants have to be hormone-receptor positive (HR+) and have to be resistant to endocrine therapy and cyclin-dependent kinases 4 and 6 (CDK4/6) inhibitors. Participants may have received multiple lines of endocrine therapy with or without targeted therapies and must have received only one line of chemotherapy for ABC.

Moreover, the immune effects, the predictors of resistance and response to treatment, the effect of the chemotherapy on deoxyribonucleic acid (DNA) replication will be assessed and will help identify the subgroups that will mostly benefit from the treatment. The pharmacokinetics of the product and the anti-drug antibody (ADA) will be also evaluated.

A total of 100 participants are planned to be treated in the study. Participants will receive, every three weeks, a dose of U3-1402 equivalent to 5.6 mg/kg of body weight until progression or until unacceptable toxicity.

Tumor evaluation will be performed every six weeks by the mean of a computed tomography for the thorax, abdomen and pelvis (TAP CT-scan) or a magnetic resonance imaging (MRI). Brain and/or bone CT scans will be also performed throughout the study for participants with brain and/or bone metastasis.

The safety of the product will be assessed at each cycle, through complete clinical exams, biological tests, electrocardiograms (ECGs), cardiac echographies (ECHOs) and through the collection of ongoing toxicities or adverse events.

Enrollment

170 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Adults with histologically-confirmed HER2 negative, unresectable locally advanced or metastatic breast cancer that is hormone receptor positive (HR+) at the time of the first breast cancer diagnosis
  • Participants with a documented radiologic unresectable or metastatic progression
  • Participants may have received anthracyclines and taxanes as (neo) adjuvant treatment and must have received one line of chemotherapy for Advanced breast cancer (ABC), but not more than one line. Participants must have a clinically or radiologically documented evidence of tumor progression on or after cyclin dependent kinase 4/6 (CDK 4/ 6) inhibitor combined with endocrine therapy. Previous treatments with PI3K inhibitors, mTOR inhibitors, AKT-inhibitors and poly ADP ribose polymerase (PARP)-inhibitors are allowed
  • Participants must have a tumor site easily accessible to biopsy (with exception of bone metastasis)
  • Participants must have at least one radiologically measurable lesion (different from the biopsy site)
  • Participants must have an ECOG PS equals to 0 or 1
  • Participants must have a life expectancy of 12 weeks or more
  • Participants must have adequate bone marrow reserve and organ function, based on local laboratory data within 14 days prior to Cycle 1, Day 1
  • Females of reproductive/childbearing potential must have a negative pregnancy test at screening and must agree to use a highly effective form of contraception or avoid intercourse during the study and for at least 7 months after the last dose of study drug.

Contraceptive methods considered highly effective:

  1. Intrauterine device (IUD)
  2. Bilateral tubal occlusion
  3. Vasectomized partner
  4. Complete sexual abstinence during and upon completion of the study and for at least 7 months for females after the last dose of study drug

Female participants must not donate, or retrieve for their own use, ova from the time of screening and for at least 7 months after the final study drug administration

-If male, the participant must be surgically sterile, must withhold heterosexual intercourse, or must be willing to use a highly effective birth control upon enrollment, and for at least 4 months following the last dose of study drug

Male participants must not freeze or donate sperm starting at screening and throughout the study period, and for at least 4 months after the final study drug administration

  • Participant must understand, sign, and date the written ICF prior to any protocol-specific procedures performed. Participant should be able and willing to comply with study visits and procedure as per protocol
  • Participant must be affiliated to a social security system or beneficiary of the same

Exclusion criteria

  • Breast cancer amenable for resection or radiation therapy with curative intent

  • Any history of interstitial lung disease (ILD), actual ILD, or a suspicion of an ILD

  • Clinically severe pulmonary compromise (based on investigator's assessment) resulting from intercurrent pulmonary illnesses including, but not limited to:

    1. Any underlying pulmonary disorder
    2. Any autoimmune, connective tissue or inflammatory disorder with pulmonary involvement
    3. OR prior pneumonectomy
  • The use of chronic systemic corticosteroids at a dose superior to 10 mg of prednisone or equivalent or any form of immunosuppressive therapy prior to Cycle 1 Day 1. Participants who require use of bronchodilators, inhaled steroids, or local steroid injections may be included in the study

  • Evidence of any leptomeningeal disease

  • Evidence of corneal disease

  • Any evidence of severe or uncontrolled systemic diseases including active bleeding diatheses, active infection, psychiatric illness/social situations, geographical factors, substance abuse, or other factors which in the investigator's opinion makes it undesirable for the participant to participate in the study or which would jeopardize compliance with the protocol

  • Evidence of clinically active spinal cord compression or brain metastases defined as untreated and symptomatic, or requiring therapy with corticosteroids or anticonvulsants to control associated symptoms

  • Inadequate washout period prior to Cycle 1 Day 1, defined as:

    1. Whole brain radiation therapy within 14 days before treatment or stereotactic brain radiation therapy, within 7 days before treatment
    2. Any cytotoxic chemotherapy, investigational agents or other anticancer drug(s) from a previous cancer treatment regimen or clinical study, within 14 days before treatment or 5 half-lives, whichever is longer
    3. Immune checkpoint inhibitor therapy, within 21 days before treatment
    4. Endocrine therapy within 21 days of treatment
    5. Major surgery (excluding placement of vascular access) within 28 days of treatment
    6. Radiotherapy treatment to more than 30% of the bone marrow or with a wide field of radiation within 28 days or palliative radiation therapy within 14 days of treatment
    7. Chloroquine or hydroxychloroquine within 14 days before treatment
    8. Live virus vaccination, within 28 days before treatment
  • Prior treatment with an anti-HER3 antibody and/or ADC containing an exatecan derivative that is a topoisomerase I inhibitor

  • Participants with a grade equals or greater than 2 unresolved toxicities from previous anticancer therapy (other than alopecia)

  • A history of severe hypersensitivity reactions to either the drug substances or inactive ingredients of U3-1402, or to other monoclonal antibodies

  • Any evidence of primary malignancy other than locally advanced or metastatic lung cancer within three years prior to Cycle 1 Day 1, except adequately resected non-melanoma skin cancer, curatively treated in-situ disease, or other solid tumors curatively treated

  • Uncontrolled or significant cardiovascular disease prior to Cycle 1 Day :

    1. Corrected QT interval higher than 470 ms for females and 450 ms for males according to Fridericia's formula (QTcF) and assessed based on triplicate ECGs, approximately 1 minute apart
    2. Left ventricular ejection fraction (LVEF) less than 50% by either ECHO or cardiac MRI or multigated acquisition scan (MUGA)
    3. Resting systolic blood pressure higher than 140 mmHg or diastolic blood pressure higher than 90 mmHg

    e. Myocardial infarction within six months f. NYHA Classes 2 to 4 within 28 days before treatment g. Uncontrolled angina pectoris within six months. h. Cardiac arrhythmia requiring antiarrhythmic treatment

  • Active hepatitis B and/or hepatitis C infection, such as those with serologic evidence of viral infection within 28 days of Cycle 1, Day 1.

    1. Hepatitis surface antigen (HBsAg) negative and hepatitis B core antibody (anti-HBc) positive; OR
    2. HBsAg positive and HBV DNA viral load is documented to be equal or less than 2,000 IU/mL in the absence of anti-viral therapy and during the previous 12 weeks prior to the viral load evaluation with normal transaminases (in the absence of liver metastasis); OR
    3. HBsAg positive and HBV DNA viral load is documented to be equal or less than 2,000 IU/mL in the absence of anti-viral therapy and during the previous 12 weeks prior to the viral load evaluation with liver metastasis and abnormal transaminases AST/ALT less than 3 ULN

Participants with a history of Hepatitis C infection will be eligible for enrollment only if the viral load according to local standards of detection, is documented to be below the level of detection in the absence of anti-viral therapy during the previous 12 weeks (ie, sustained viral response according to the local product label but no less than 12 weeks, whichever is longer)

  • Known human immunodeficiency virus (HIV) or active COVID-19 infection

  • Participants under guardianship or deprived of his/her liberty by a judicial or administrative decision or incapable of giving his/her consent

  • Female participants who are pregnant or breastfeeding or intend to become pregnant during the study

  • Participation in another clinical trial evaluating an experimental drug (except non-interventional research)

  • Evidence of clinically active spinal cord compression or brain metastases, defined as untreated and symptomatic, or requiring therapy with corticosteroids or anticonvulsants to control associated symptoms. Participants with clinically inactive or treated brain metastases who are asymptomatic (ie, without neurologic signs or symptoms and do not require treatment with corticosteroids or anticonvulsants) may be included in the study. Participants must have a stable neurologic status for at least 2 weeks prior to Cycle 1 Day 1

  • Inadequate washout period prior to Cycle 1 Day 1, defined as:

    1. Whole brain radiation therapy within 14 days before treatment or stereotactic brain radiation therapy, within 7 days before treatment
    2. Any cytotoxic chemotherapy, investigational agents or other anticancer drug(s) from a previous cancer treatment regimen or clinical study, within 14 days before treatment or 5 half-lives, whichever is longer
    3. Immune checkpoint inhibitor therapy, within 21 days before treatment
    4. Endocrine therapy within 21 days before treatment
    5. Major surgery (excluding placement of vascular access), within 28 days before treatment
    6. Radiotherapy treatment to more than 30% of the bone marrow or with a wide field of radiation, within 28 days before treatment or palliative radiation therapy within 14 days before treatment
    7. Chloroquine or hydroxychloroquine within 14 days before treatment.
    8. Live virus vaccination, within 28 days before treatment
  • Prior treatment with an anti-HER3 antibody and/or ADC containing an exatecan derivative that is a topoisomerase I inhibitor (eg, trastuzumab deruxtecan).

  • Participants with grade ≤2 unresolved toxicities from previous anticancer therapy (other than alopecia), as defined by the NCI-CTCAE version 5.0

  • Participant with a known hypersensitivity to either the drug substances or inactive ingredients in the drug product Participant with a history of severe hypersensitivity reactions to other monoclonal antibodies Participant has any primary malignancy other than locally advanced or metastatic breast cancer within 3 years prior to Cycle 1 Day 1, except adequately resected non-melanoma skin cancer, curatively treated in-situ disease, or other solid tumors curatively treated

  • Uncontrolled or significant cardiovascular disease prior to Cycle 1 Day 1, including:

    1. Corrected QT interval higher than 470 ms for females and 450 ms for males according to Fridericia's formula (QTcF) and assessed based on triplicate ECGs, approximately 1 minute apart
    2. Left ventricular ejection fraction (LVEF) less than 50% by either ECHO or cardiac MRI
    3. Resting systolic blood pressure higher than 140 mmHg or diastolic blood pressure higher than 90 mmHg
    4. Myocardial infarction within six months
    5. NYHA Classes 2 to 4 within 28 days before treatment
    6. Uncontrolled angina pectoris within six months.
    7. Cardiac arrhythmia requiring antiarrhythmic treatment
  • Participants with past or resolved hepatitis B virus (HBV) infection are eligible if:

    1. Hepatitis surface antigen (HBsAg) negative and hepatitis B core antibody (anti-HBc) positive; OR
    2. HBsAg positive and HBV DNA viral load is documented to be equal or less than 2,000 IU/mL in the absence of anti-viral therapy and during the previous 12 weeks prior to the viral load evaluation with normal transaminases (in the absence of liver metastasis); OR
    3. HBsAg positive and HBV DNA viral load is documented to be equal or less than 2,000 IU/mL in the absence of anti-viral therapy and during the previous 12 weeks prior to the viral load evaluation with liver metastasis and abnormal transaminases AST/ALT less than 3 ULN

Participants with a history of Hepatitis C infection will be eligible for enrollment only if the viral load according to local standards of detection, is documented to be below the level of detection in the absence of anti-viral therapy during the previous 12 weeks (ie, sustained viral response according to the local product label but no less than 12 weeks, whichever is longer)

  • Female participant who is pregnant or breastfeeding or intends to become pregnant during the study
  • Participants with human immunodeficiency virus (HIV)
  • Participants with any psychological, familial, sociological or geographical condition potentially hindering compliance with the study protocol procedures and follow-up schedule Participants under guardianship or deprived of his liberty by a judicial or administrative decision or incapable of giving its consent.
  • Participation in another clinical trial evaluating an experimental drug (except non-interventional research

Trial design

Primary purpose

Treatment

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

170 participants in 1 patient group

U3-1402
Experimental group
Description:
All participants included in the study who answer the eligibility criteria will receive a starting dose of 5.6 mg/kg of U3-1402 every 3 weeks until progression or until unacceptable toxicity
Treatment:
Drug: U3-1402

Trial contacts and locations

1

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Central trial contact

Fernanda Mosele, Dr; Barbara Pistilli, Dr

Data sourced from clinicaltrials.gov

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