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AGEN2034 & AGEN1884 in Patients With Recurrent, Inoperable Angiosarcoma

Primary Purpose

Angiosarcoma

Status
Withdrawn
Phase
Phase 2
Locations
Study Type
Interventional
Intervention
AGEN2034
AGEN1884
Sponsored by
Agenus Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Angiosarcoma

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria

To be eligible for this study, patients must meet the following inclusion criteria:

  1. Histologically confirmed AS not amenable to curative intent surgery
  2. Prior treatment history for AS

    1. Cohort 1 and Cohort 3

      • Patients who previously received and progressed after at least 1 prior therapy for AS.
      • Checkpoint inhibitor (PD-1/PD-L1/CTLA-4) naïve
    2. Cohort 2

      • Patients who previously received and progressed on or after at least 1 prior therapy for AS
      • Prior treatment must include PD-1 or PD-L1 inhibitor such as nivolumab, pembrolizumab, atezolizumab, durvalumab, AGEN2034, or other, given either as the most recent treatment or earlier. Note: Confirmation of PD is required after treatment with prior checkpoint inhibitors
      • CTLA-4 inhibitor naïve
  3. ≥ 18 years of age.
  4. At least one lesion measurable, either radiologically (computed tomography [CT], magnetic resonance imaging [MRI]) and/or using color photography with a ruler, as per RECIST v1.1
  5. Have a life expectancy of ≥ 3 months and an Eastern Cooperative Oncology Group Performance Status of 0 to 1
  6. Resolution of all acute AEs resulting from prior cancer therapies to National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0 Grade ≤ 1
  7. Have adequate organ function as indicated by the following laboratory values:

    1. Adequate hematological function defined by absolute neutrophil count > 1.5 × 10^9/L, platelet count > 75 × 10^9/L, and hemoglobin > 8 g/dL (without transfusions, within

      1 week of first dose)

    2. Adequate hepatic function based by a total bilirubin level ≤ × 1.5 the upper limit of normal (ULN), aspartate aminotransferase level ≤ 2.5 × ULN, alanine aminotransferase level ≤ 2.5 × ULN, alkaline phosphatase ≤ 2.5 × ULN, and albumin

      ≥ 3.0 mg/dL

    3. Adequate renal function defined as creatinine ≤ 1.5 × ULN OR measured or calculated creatinine clearance ≥ 40 mL/minute per Institutional standard. Assessment methods should be recorded
    4. Adequate coagulation defined by international normalized ratio or prothrombin time ≤ 1.5 × ULN (unless the patient is receiving anticoagulant therapy); and activated partial thromboplastin time ≤ 1.5 × ULN (unless the patient is receiving anticoagulant therapy)
  8. Willing to undergo mandatory fresh tumor biopsy, from a site not previously irradiated (unless progressed after radiation treatment) Note: Tissue from core, or punch excisional biopsy, or from resection is required
  9. Women of child-bearing potential (WCBP) must have a negative serum pregnancy test at Screening (within 72 hours prior to first dose of study medication)

    Note: Non-childbearing potential is defined as 1 of the following:

    1. ≥ 45 years of age and has not had menses for > 1 year
    2. Amenorrheic for > 2 years without a hysterectomy and/or oophorectomy and follicle-stimulating hormone value in the postmenopausal range upon pre-study (Screening) evaluation
    3. Status is post hysterectomy, oophorectomy, or tubal ligation
  10. WCBP must be willing to use highly effective contraception throughout the study, starting with the Screening Visit through 90 days after the last dose of study treatment
  11. Male patients with a female partner(s) of childbearing potential must agree to use highly effective contraceptive measures throughout the study starting with the Screening Visit through 90 days after the last dose of study treatment is received. Males with pregnant partners must agree to use a condom; no additional method of contraception is required for the pregnant partner Note: Abstinence is acceptable if this is the established and preferred contraception method for the patient
  12. Willingness and ability to consent to participate in study and comply with all study procedures

Exclusion Criteria

To be eligible for this study, patients must not have any of the following exclusion criteria:

  1. Is currently participating and receiving study therapy or has participated in a different study of an investigational agent and received study therapy or used an investigation device within 3 weeks of the first dose of treatment
  2. Has an inadequate washout period prior to first dose of study drug defined as:

    1. < 3 weeks from last dose of prior systemic cytotoxic chemotherapy or biological therapy
    2. < 3 weeks from last radiation therapy
    3. < 4 weeks from major surgery
  3. Known severe (Grade ≥ 3) hypersensitivity reactions to fully human mAbs, antibody, or severe reaction to immuno-oncology agents, such as colitis or pneumonitis requiring treatment with steroids
  4. Has received systemic corticosteroid therapy ≤ 7 days prior to the first dose of study treatment or receiving any other form of systemic immunosuppressive medication (corticosteroid use on study for management of immune-related AEs, and/or a premedication for intravenous (IV) contrast allergies/reactions is allowed). Patients who are receiving daily corticosteroid replacement therapy are an exception to this rule. Daily prednisone at doses of up to 7.5 mg or equivalent hydrocortisone dose are examples of permitted replacement therapy
  5. Known central nervous system tumor, metastasis(es), and/or carcinomatous meningitis identified either on the Baseline brain imaging obtained during the Screening Period or identified prior to consent Note: Patients with history of brain metastases that have been treated may participate provided they show evidence of stable supra-tentorial lesions at Screening (based on 2 sets of brain images, performed ≥ 4 weeks apart, and obtained after the brain metastases treatment).

    In addition, any neurologic symptoms that developed either as a result of the brain metastases or their treatment must have resolved or be minimal and be expected as sequelae from treated lesions. For individuals who received steroids as part of brain metastases treatment, high-dose steroids must be discontinued ≥ 7 days prior to first dose of study drug but may be continued if ≤ 5 mg/day (prednisone)

  6. Has active or history of autoimmune disease requiring immunosuppressive systemic treatment (e.g. modifying agents, corticosteroids or immunosuppressive drugs) within previous 2 years Note: Thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency is not considered a form of immunosuppressive systemic treatment.

    Note: Patients with Type 1 diabetes, vitiligo, psoriasis, hypo-, or hyperthyroid disease not requiring immunosuppressive treatment are eligible

  7. Has had an allogeneic tissue/solid organ transplant
  8. Has or had interstitial lung disease or has had a history of pneumonitis anaphylaxis, or uncontrolled asthma that has required oral or IV corticosteroids
  9. Active infection requiring IV systemic therapy
  10. Known history of HIV type 1 or 2 antibodies
  11. Known active infection with hepatitis B and/or hepatitis C virus
  12. History of seizure disorders
  13. Clinically significant cardiovascular disease: cerebral vascular accident/stroke or myocardial infarction within 6 months of enrollment, unstable angina, congestive heart failure (New York Heart Association class ≥ II), or serious uncontrolled cardiac arrhythmia requiring medication
  14. History or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the patient's participation for the full duration of the study, or is not in the best interest of the patient to participate, in the opinion of the treating Investigator
  15. Psychiatric or substance abuse disorder that would interfere with cooperation with the requirements of the study
  16. Legally incapacitated or has limited legal capacity
  17. Pregnant or breastfeeding

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm Type

    Experimental

    Experimental

    Arm Label

    Monotherapy

    Combination Therapy

    Arm Description

    AGEN2034 - dose of 3 mg/kg IV every 2 weeks for up to 24 months

    AGEN2034 - dose of 3 mg/kg IV every 2 weeks + AGEN1884 - dose of 1 mg/kg IV every 6 weeks (following AGEN2034 infusion), for up to 24 months

    Outcomes

    Primary Outcome Measures

    Response rate of single-agent AGEN2034 and combination AGEN2034 + AGEN1884
    To evaluate the response rate of single-agent AGEN2034 and combination AGEN2034 + AGEN1884 per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) in patients with recurrent angiosarcoma

    Secondary Outcome Measures

    Full Information

    First Posted
    October 16, 2020
    Last Updated
    December 21, 2021
    Sponsor
    Agenus Inc.
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    1. Study Identification

    Unique Protocol Identification Number
    NCT04607200
    Brief Title
    AGEN2034 & AGEN1884 in Patients With Recurrent, Inoperable Angiosarcoma
    Official Title
    A Phase 2 Study Examining AGEN2034 as a Single-Agent and in Combination With AGEN1884 in Patients With Recurrent, Inoperable Angiosarcoma
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    December 2021
    Overall Recruitment Status
    Withdrawn
    Why Stopped
    Strategic business decision
    Study Start Date
    February 2021 (Anticipated)
    Primary Completion Date
    September 13, 2021 (Actual)
    Study Completion Date
    September 13, 2021 (Actual)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    Agenus Inc.

    4. Oversight

    Studies a U.S. FDA-regulated Drug Product
    Yes
    Studies a U.S. FDA-regulated Device Product
    No
    Data Monitoring Committee
    No

    5. Study Description

    Brief Summary
    This Phase 2, open-label study is designed to examine the efficacy and safety of single-agent AGEN2034 and combination AGEN2034 + AGEN1884 in patients with recurrent, inoperable or metastatic Angiosarcoma (AS).
    Detailed Description
    This Phase 2, open-label study is designed to examine the efficacy and safety of single-agent AGEN2034 and combination AGEN2034 + AGEN1884 in patients with recurrent, inoperable or metastatic AS. Three cohorts will be enrolled into 2 Parts of the study as follows: Part 1 Cohort 1: Qualifying patients that are checkpoint inhibitor naïve will be enrolled into single-agent AGEN2034 Cohort 2: Qualifying patients that are inhibitor (PD-1/L1) resistant will be enrolled into combination AGEN2034 + AGEN1884 Part 2 • Cohort 3: Qualifying patients that are checkpoint inhibitor naïve will be enrolled into combination AGEN2034 + AGEN1884. Part 2 will begin enrollment after enrollment in Part 1 is completed The study will be conducted in 2 parts: In Part 1, checkpoint inhibitor naïve patients will be treated with single-agent AGEN2034 (Cohort 1) and patients resistant to PD-1/PD-L1 (defined as prior progression on PD 1/PD-L1 treatment) will be treated with combination of AGEN2034+AGEN1884 (Cohort 2). Patients from Cohort 1 who experience PD may be considered (as PD-1 resistant) for transition to Cohort 2. In Part 2, the study will enroll checkpoint inhibitor naïve patients for treatment with combination AGEN2034+AGEN1884 (Cohort 3). Part 2 will begin enrollment after enrollment in Part 1 is completed. All patients will receive study treatment for up to 2 years until confirmed disease progression, unacceptable toxicity, or until the patient wishes to withdraw consent for any reason. Patients will be followed for safety at 30 and 90 days, and for survival every 2 months for at least 12 months from their last dose of study treatment. Each treatment cycle will be 6 weeks. An IRC will be established to adjudicate tumor response based on imaging studies, photography, and clinical response. The primary endpoints will be based on the IRC assessment of response per RECIST v1.1.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Angiosarcoma

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Phase 2
    Interventional Study Model
    Parallel Assignment
    Masking
    None (Open Label)
    Allocation
    Non-Randomized
    Enrollment
    0 (Actual)

    8. Arms, Groups, and Interventions

    Arm Title
    Monotherapy
    Arm Type
    Experimental
    Arm Description
    AGEN2034 - dose of 3 mg/kg IV every 2 weeks for up to 24 months
    Arm Title
    Combination Therapy
    Arm Type
    Experimental
    Arm Description
    AGEN2034 - dose of 3 mg/kg IV every 2 weeks + AGEN1884 - dose of 1 mg/kg IV every 6 weeks (following AGEN2034 infusion), for up to 24 months
    Intervention Type
    Drug
    Intervention Name(s)
    AGEN2034
    Other Intervention Name(s)
    Anti-PD-1
    Intervention Description
    Anti-PD-1 Monoclonal Antibody
    Intervention Type
    Drug
    Intervention Name(s)
    AGEN1884
    Other Intervention Name(s)
    Anti-CTLA-4
    Intervention Description
    Anti-CTLA-4 Monoclonal Antibody
    Primary Outcome Measure Information:
    Title
    Response rate of single-agent AGEN2034 and combination AGEN2034 + AGEN1884
    Description
    To evaluate the response rate of single-agent AGEN2034 and combination AGEN2034 + AGEN1884 per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) in patients with recurrent angiosarcoma
    Time Frame
    48 months

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Inclusion Criteria To be eligible for this study, patients must meet the following inclusion criteria: Histologically confirmed AS not amenable to curative intent surgery Prior treatment history for AS Cohort 1 and Cohort 3 Patients who previously received and progressed after at least 1 prior therapy for AS. Checkpoint inhibitor (PD-1/PD-L1/CTLA-4) naïve Cohort 2 Patients who previously received and progressed on or after at least 1 prior therapy for AS Prior treatment must include PD-1 or PD-L1 inhibitor such as nivolumab, pembrolizumab, atezolizumab, durvalumab, AGEN2034, or other, given either as the most recent treatment or earlier. Note: Confirmation of PD is required after treatment with prior checkpoint inhibitors CTLA-4 inhibitor naïve ≥ 18 years of age. At least one lesion measurable, either radiologically (computed tomography [CT], magnetic resonance imaging [MRI]) and/or using color photography with a ruler, as per RECIST v1.1 Have a life expectancy of ≥ 3 months and an Eastern Cooperative Oncology Group Performance Status of 0 to 1 Resolution of all acute AEs resulting from prior cancer therapies to National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0 Grade ≤ 1 Have adequate organ function as indicated by the following laboratory values: Adequate hematological function defined by absolute neutrophil count > 1.5 × 10^9/L, platelet count > 75 × 10^9/L, and hemoglobin > 8 g/dL (without transfusions, within 1 week of first dose) Adequate hepatic function based by a total bilirubin level ≤ × 1.5 the upper limit of normal (ULN), aspartate aminotransferase level ≤ 2.5 × ULN, alanine aminotransferase level ≤ 2.5 × ULN, alkaline phosphatase ≤ 2.5 × ULN, and albumin ≥ 3.0 mg/dL Adequate renal function defined as creatinine ≤ 1.5 × ULN OR measured or calculated creatinine clearance ≥ 40 mL/minute per Institutional standard. Assessment methods should be recorded Adequate coagulation defined by international normalized ratio or prothrombin time ≤ 1.5 × ULN (unless the patient is receiving anticoagulant therapy); and activated partial thromboplastin time ≤ 1.5 × ULN (unless the patient is receiving anticoagulant therapy) Willing to undergo mandatory fresh tumor biopsy, from a site not previously irradiated (unless progressed after radiation treatment) Note: Tissue from core, or punch excisional biopsy, or from resection is required Women of child-bearing potential (WCBP) must have a negative serum pregnancy test at Screening (within 72 hours prior to first dose of study medication) Note: Non-childbearing potential is defined as 1 of the following: ≥ 45 years of age and has not had menses for > 1 year Amenorrheic for > 2 years without a hysterectomy and/or oophorectomy and follicle-stimulating hormone value in the postmenopausal range upon pre-study (Screening) evaluation Status is post hysterectomy, oophorectomy, or tubal ligation WCBP must be willing to use highly effective contraception throughout the study, starting with the Screening Visit through 90 days after the last dose of study treatment Male patients with a female partner(s) of childbearing potential must agree to use highly effective contraceptive measures throughout the study starting with the Screening Visit through 90 days after the last dose of study treatment is received. Males with pregnant partners must agree to use a condom; no additional method of contraception is required for the pregnant partner Note: Abstinence is acceptable if this is the established and preferred contraception method for the patient Willingness and ability to consent to participate in study and comply with all study procedures Exclusion Criteria To be eligible for this study, patients must not have any of the following exclusion criteria: Is currently participating and receiving study therapy or has participated in a different study of an investigational agent and received study therapy or used an investigation device within 3 weeks of the first dose of treatment Has an inadequate washout period prior to first dose of study drug defined as: < 3 weeks from last dose of prior systemic cytotoxic chemotherapy or biological therapy < 3 weeks from last radiation therapy < 4 weeks from major surgery Known severe (Grade ≥ 3) hypersensitivity reactions to fully human mAbs, antibody, or severe reaction to immuno-oncology agents, such as colitis or pneumonitis requiring treatment with steroids Has received systemic corticosteroid therapy ≤ 7 days prior to the first dose of study treatment or receiving any other form of systemic immunosuppressive medication (corticosteroid use on study for management of immune-related AEs, and/or a premedication for intravenous (IV) contrast allergies/reactions is allowed). Patients who are receiving daily corticosteroid replacement therapy are an exception to this rule. Daily prednisone at doses of up to 7.5 mg or equivalent hydrocortisone dose are examples of permitted replacement therapy Known central nervous system tumor, metastasis(es), and/or carcinomatous meningitis identified either on the Baseline brain imaging obtained during the Screening Period or identified prior to consent Note: Patients with history of brain metastases that have been treated may participate provided they show evidence of stable supra-tentorial lesions at Screening (based on 2 sets of brain images, performed ≥ 4 weeks apart, and obtained after the brain metastases treatment). In addition, any neurologic symptoms that developed either as a result of the brain metastases or their treatment must have resolved or be minimal and be expected as sequelae from treated lesions. For individuals who received steroids as part of brain metastases treatment, high-dose steroids must be discontinued ≥ 7 days prior to first dose of study drug but may be continued if ≤ 5 mg/day (prednisone) Has active or history of autoimmune disease requiring immunosuppressive systemic treatment (e.g. modifying agents, corticosteroids or immunosuppressive drugs) within previous 2 years Note: Thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency is not considered a form of immunosuppressive systemic treatment. Note: Patients with Type 1 diabetes, vitiligo, psoriasis, hypo-, or hyperthyroid disease not requiring immunosuppressive treatment are eligible Has had an allogeneic tissue/solid organ transplant Has or had interstitial lung disease or has had a history of pneumonitis anaphylaxis, or uncontrolled asthma that has required oral or IV corticosteroids Active infection requiring IV systemic therapy Known history of HIV type 1 or 2 antibodies Known active infection with hepatitis B and/or hepatitis C virus History of seizure disorders Clinically significant cardiovascular disease: cerebral vascular accident/stroke or myocardial infarction within 6 months of enrollment, unstable angina, congestive heart failure (New York Heart Association class ≥ II), or serious uncontrolled cardiac arrhythmia requiring medication History or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the patient's participation for the full duration of the study, or is not in the best interest of the patient to participate, in the opinion of the treating Investigator Psychiatric or substance abuse disorder that would interfere with cooperation with the requirements of the study Legally incapacitated or has limited legal capacity Pregnant or breastfeeding
    Overall Study Officials:
    First Name & Middle Initial & Last Name & Degree
    Medical Director
    Organizational Affiliation
    Agenus Inc.
    Official's Role
    Study Director

    12. IPD Sharing Statement

    Learn more about this trial

    AGEN2034 & AGEN1884 in Patients With Recurrent, Inoperable Angiosarcoma

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