Working…
ClinicalTrials.gov
ClinicalTrials.gov Menu

Establishing the Recommended Biological Dose for AE37 Peptide Vaccine in Combination With Pembrolizumab That Will Enhance the Tumor-specific Immune Response and Demonstrate Efficacy in Patients With Advanced Triple-negative Breast Cancer (NSABP FB-14)

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.
 
ClinicalTrials.gov Identifier: NCT04024800
Recruitment Status : Recruiting
First Posted : July 18, 2019
Last Update Posted : July 18, 2019
Sponsor:
Collaborators:
Merck Sharp & Dohme Corp.
NSABP Foundation Inc
Information provided by (Responsible Party):
Norman Wolmark, NSABP Foundation Inc

Brief Summary:

This study will look to establish the recommended biologic dose of AE37 in combination with pembrolizumab that will enhance the tumor-specific immune response and demonstrate efficacy in patients with advanced triple-negative breast cancer.

This study will take place in two parts. Stage 1 will be the safety cohort (13 patients) to determine the recommended dose of AE37 vaccine that can safely be administered with pembrolizumab. Stage 2 will be an expansion cohort (16 patients) that will consist of the recommended dose of AE37 determined in Stage 1.


Condition or disease Intervention/treatment Phase
Triple-negative Breast Cancer Biological: AE37 Peptide vaccine Biological: Pembrolizumab Phase 2

Detailed Description:

The FB-14 is an open label, phase II study using pembrolizumab in combination with AE37 peptide vaccine (AE37) in patients with metastatic triple-negative breast cancer (mTNBC).

This study will have a Simon two-stage design. In Stage I (safety cohort), 13 patients will receive combination therapy of AE37 vaccine (without granulocyte macrophage-colony stimulating factor [GM-CSF] adjuvant) 1000 micrograms in two split intradermal injections on Day 1 of cycles 1 through 5 and pembrolizumab 200 mg intravenous infusion (IV) given Day 1 of each cycle for 2 years (1 cycle equals 21 days).

All patients (safety and expansion cohorts) will receive two delayed type hypersensitivity inoculations (DTH): the first within one week prior to beginning study therapy, which must meet the parameters of negative inoculation site assessment for eligibility as described in the protocol; and the second approximately 42 days after the last AE37 vaccine dose.

During a safety run-in, the first 3 patients will be closely followed for 6 weeks following the first dose of study therapy (2 cycles) without further accrual of patients. If one or less of the first 3 patients experience greater than or equal to Grade 3 systemic dose limiting toxicity (DLT) attributable to study therapy during the observation period, the safety run-in portion of the study will proceed with enrollment at the proposed study therapy dose (AE37 1000 micrograms and pembrolizumab 200 mg IV infusion). If there are two or more patients in the safety run-in with DLT during Cycle 1, the dose of AE37 will be decreased to dose level −1 (500 micrograms) to complete stage I accrual. The definition of a DLT is found in the protocol.

If DLT is observed during the safety run-in or in greater than 25% (4 or more) of patients in stage I, the AE37 dose will be de-escalated to 500 micrograms (dose level −1) for all patients to complete stage I accrual. If systemic toxicity occurs in greater than or equal to 3 patients at dose level −1, accrual will be halted and the toxicity reviewed by the study team.


Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 29 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase II Clinical Trial of Pembrolizumab in Combination With the AE37 Peptide Vaccine in Patients With Metastatic Triple-Negative Breast Cancer
Actual Study Start Date : May 3, 2019
Estimated Primary Completion Date : June 30, 2023
Estimated Study Completion Date : June 30, 2024

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Breast Cancer

Arm Intervention/treatment
Experimental: Arm 1
AE37 peptide vaccine every 21 days for 5 doses + Pembrolizumab every 21 days for 2 years (Maximum 35 cycles)
Biological: AE37 Peptide vaccine

Starting dose: AE37 vaccine 1000 micrograms split into 2 doses given as intradermal injection on day 1 of every 3 week cycle (21 day cycle) for 5 cycles.

Should ≥ grade 3 systemic toxicities (DLT) occur in > 25% (4) of the first 13 patients (4 or more) the study therapy vaccine dose will be de-escalated to 500 micrograms (dose level −1).

Other Name: AE37

Biological: Pembrolizumab
Pembrolizumab 200 mg IV on day 1 of every 3 week cycle (21 day cycle) for 2 years (35 cycles)
Other Name: MK-3475




Primary Outcome Measures :
  1. Recommended dose [ Time Frame: Day 1, within 72 hours of vaccination (48-72 hours), and as adverse events occur in each cycle (21 days) of study therapy (first 13 patients). ]
    Recommended dose of AE37 that can be safely administered with pembrolizumab. If dose limiting toxicities occur in 4 of the first 13 patients the study therapy vaccine dose will be de-escalated to 500 micrograms (dose-level 1). If fewer than 4 patients experience DLTs then the expansion cohort of 16 patients will be added.

  2. Objective response rate [ Time Frame: From study entry through disease progression or intolerable toxicity for a maximum of 35 cycles (21 days cycle) )or two years. ]
    Objective response rate determined by RECIST 1.1 with modifications for progressive disease confirmation


Secondary Outcome Measures :
  1. Progression-free Survival [ Time Frame: From study entry through disease progression or intolerable toxicity for a maximum of 35 cycles (21 days cycle) or two years. ]
    Progression-free survival with pembrolizumab in combination with AE37

  2. Overall Survival [ Time Frame: From study entry through disease progression or intolerable toxicity for a maximum of 35 cycles (21 days cycle) or two years. ]
    Overall survival rate at 1 year from start of therapy.

  3. Clinical benefit rate [ Time Frame: From study entry through disease progression or intolerable toxicity for a maximum of 35 cycles (21 days cycle) or two years. ]
    Clinical benefit rate as measured by disease status by continuous tumor measurement

  4. Overall Toxicity [ Time Frame: Adverse events assessed from the beginning of study therapy through 90 days after the last dose of study therapy ]
    Adverse events experienced by participants receiving AE37 in combination with pembrolizumab as a measure of toxicity



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Have a performance status of 0 or 1 on the (Eastern Cooperative Oncology Group) ECOG Performance Scale.
  • Patients must have histologic or cytologic confirmation of the diagnosis of invasive adenocarcinoma of the breast.
  • The primary or metastatic tissue must be triple-negative (ER/PR less than or equal to 9%, HER2-negative [human epidermal growth factor receptor 2] by American Society of Clinical Oncology (ASCO)/ College of American Pathologists (CAP) guidelines).
  • There must be documentation that the patient has evidence of measurable metastatic breast cancer based on RECIST 1.1. Tumor lesions situated in a previously irradiated area are considered measurable if progression has been demonstrated in such lesions. Histologic confirmation of metastatic disease is not required.
  • At least 1 of the tumor sites must be amenable to core needle biopsy.
  • Patients with treated, stable, asymptomatic metastatic disease to the brain not requiring chronic corticosteroids are eligible (per discretion of the treating investigator).
  • Patient must have resolution of toxic effect(s) of the most recent chemotherapy less than or equal to Grade 1 (except alopecia). If the patient has received major surgery or radiation therapy of greater than 30 Gy, they must have recovered from the toxicity and/or complication from the intervention.
  • Demonstrate adequate organ function, all screening labs should be performed within two weeks of treatment initiation.

    • ANC (absolute neutrophil count) count greater than or equal to 1,500/mm3
    • Platelets greater than or equal to 100,000/mm3
    • Hemoglobin greater than or equal to 9 g/dL
    • Creatinine less than or equal to 1.5x upper limit of normal (ULN) OR measured or calculated creatinine clearance (CrCl) greater than or equal to 30mL/min for patients with creatinine levels greater than 1.5x institutional ULN. (Glomerular filtration rate (GFR) can also be used in place of creatinine or CrCl.)
    • Total bilirubin less than or equal to 1.5x ULN OR Direct bilirubin less than or equal to ULN for patients with total bilirubin levels greater than 1.5 x ULN.
    • AST (SGOT) and ALT (SGPT) less than or equal to 2.5 x ULN OR less than or equal to 5 x ULN for patients with liver metastases.
  • A less than or equal to Grade 2 skin reaction to the first DTH inoculation is required to begin study therapy.
  • International normalized ratio (INR) or prothrombin time (PT) must be less than or equal to 1.5x ULN unless the patient is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants. Partial Thromboplastin Time (aPTT) must be less than or equal to 1.5 x ULN unless subject is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants.
  • Female patients of childbearing potential should have a negative urine or serum pregnancy within 72 hours prior to receiving the first dose of study medication. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required.
  • Study patients of childbearing potential must be willing to use an adequate method of contraception as outlined in the protocol or be surgically sterile, or abstain from heterosexual activity for the course of the study through 120 days after the last dose of study medication. Patients of childbearing potential are those who have not been surgically sterilized or have not been free from menses for greater than 1 year. Note: If there is any question that a participant of childbearing potential will not reliably comply with the requirements for contraception, that participant should not be entered into the study.

Exclusion Criteria:

  • Greater than 1 line of therapy for metastatic disease. Note: patients presenting with stage IV disease should have one line of standard therapy.
  • Is currently participating in or has participated in a study of an investigational agent or using an investigational device within 4 weeks of the first dose of treatment.
  • Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy (in dosing exceeding 10mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior to the first dose of trial treatment. The use of physiologic doses of corticosteroids must be discussed with the NSABP Department of Site and Study Management (DSSM).
  • A greater than Grade 2 skin reaction to the first DTH inoculation will exclude that patient from beginning study therapy.
  • Has had a prior anti-cancer monoclonal antibody (mAb) within 4 weeks prior to study Day 1 or who has not recovered (i.e., less than or equal to Grade 1 or at baseline) from adverse events due to agents administered more than 4 weeks earlier.
  • Prior chemotherapy, targeted small molecule therapy, or radiation therapy within 2 weeks prior to study Day 1 or who has not recovered (i.e., less than or equal to Grade 1 or at baseline) from adverse events due to a previously administered agent. Note: Patients with alopecia are an exception to this criterion and may qualify for the study.
  • Blood products (including platelets or red blood cells) or administration of colony stimulating factors (including G-CSF, GM-CSF or recombinant erythropoietin) within 4 weeks prior to beginning study therapy.
  • Has a known additional malignancy that is progressing or requires active treatment. Exceptions include basal cell carcinoma of the skin, squamous cell carcinoma of the skin that has undergone potentially curative therapy, or in situ cancers.
  • Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis. Patients with previously treated brain metastases may participate provided they are stable (without evidence of progression by imaging for at least four weeks prior to the first dose of trial treatment and any neurologic symptoms have returned to baseline), have no evidence of new or enlarging brain metastases, and are not using steroids for at least 7 days prior to trial treatment.
  • Has an active autoimmune disease that has required systemic treatment within the past 2 years (i.e., with use of disease modifying agents, corticosteroids, or immunosuppressive drugs). Note: Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency and bone anti-resorptive agents etc.) is not considered a form of systemic treatment.
  • Has a history of (non-infectious) pneumonitis that required steroids or current pneumonitis.
  • Has a history of or active interstitial lung disease, autoimmune lung disease, severe asthma requiring daily medication.
  • Malabsorption syndrome, ulcerative colitis, inflammatory bowel disease, resection of the stomach or small bowel, or other disease or condition significantly affecting gastrointestinal function.
  • Has an active infection requiring systemic therapy.
  • Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with a patient's participation for the full duration of the trial, or is not in the best interest of the patient to participate, in the opinion of the treating investigator.
  • Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial.
  • Is pregnant or breastfeeding, or expecting to conceive a child within the projected duration of the trial, starting with the pre-screening or screening visit through 120 days after the last dose of trial treatment.
  • Prior therapy with an anti-PD-1, anti-PD-L1, anti-PD-L2, anti-CD137, or anti-Cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) antibody (including ipilimumab or any other antibody or drug specifically targeting T-cell co-stimulation or checkpoint pathways) is not allowed.
  • Has a known history of Human Immunodeficiency Virus (HIV) (HIV 1/2 antibodies).
  • Has known active Hepatitis B or Hepatitis C infections or known to be positive for Hepatitis B antigen (HBsAg)/ Hepatitis B virus (HBV) DNA or Hepatitis C Antibody or RNA. Active Hepatitis C is defined by a known positive Hep C Ab result and known quantitative HCV RNA results greater than the lower limits of detection of the assay.
  • Has received a live vaccine within 30 days prior to the first dose of trial treatment. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster (chicken pox), yellow fever, rabies, Bacillus Calmette-Guérin (BCG), and typhoid vaccine.

Note: Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (e.g., FluMist®) are live attenuated vaccines and are not allowed.

• Has severe (greater than or equal to Grade 3) hypersensitivity to pembrolizumab and/or any of its excipients.


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 ClinicalTrials.gov identifier (NCT number): NCT04024800


Contacts
Layout table for location contacts
Contact: Diana Gosik, RN, BS 412-339-5333 Diana.gosik@nsabp.org

Locations
Layout table for location information
United States, Illinois
Cancer Care Specialists of Central Illinois Recruiting
Decatur, Illinois, United States, 62526
Crossroads Cancer Center Recruiting
Effingham, Illinois, United States, 62401
Cancer Care Specialists of Central Illinois-Swansea Recruiting
Swansea, Illinois, United States, 62226
United States, West Virginia
West Virginia University Recruiting
Morgantown, West Virginia, United States, 26506
Sponsors and Collaborators
Antigen Express, Inc
Merck Sharp & Dohme Corp.
NSABP Foundation Inc
Investigators
Layout table for investigator information
Principal Investigator: Norman Wolmark, MD NSABP Foundation Inc

Layout table for additonal information
Responsible Party: Norman Wolmark, Chair, NSABP Foundation Inc
ClinicalTrials.gov Identifier: NCT04024800     History of Changes
Other Study ID Numbers: NSABP FB-14
MK3475 KN 548 ( Other Identifier: Merck Sharp & Dohme Corp. )
First Posted: July 18, 2019    Key Record Dates
Last Update Posted: July 18, 2019
Last Verified: July 2019

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Norman Wolmark, NSABP Foundation Inc:
Triple-negative Breast Cancer
Tumor-specific immune response
Open-Label
Pembrolizumab
Peptide vaccine
Metastatic Breast Cancer
Dose limiting toxicity
RECIST 1.1
AE37
Additional relevant MeSH terms:
Layout table for MeSH terms
Breast Neoplasms
Triple Negative Breast Neoplasms
Neoplasms by Site
Neoplasms
Breast Diseases
Skin Diseases
Pembrolizumab
Vaccines
Immunologic Factors
Physiological Effects of Drugs
Antineoplastic Agents, Immunological
Antineoplastic Agents