Randomized Phase 2 Clinical Trial of Nab-Paclitaxel + Durvalumab (MEDI4736) + Tremelimumab + Neoantigen Vaccine vs. Nab-Paclitaxel + Durvalumab (MEDI4736) + Tremelimumab in Patients With Metastatic Triple Negative Breast Cancer

  • End date
    Dec 31, 2022
  • participants needed
  • sponsor
    National Cancer Institute (NCI)
Updated on 16 September 2022


This phase II trial studies how well nab-paclitaxel, durvalumab, and tremelimumab with or without personalized synthetic long peptide vaccine (neoantigen vaccine) works in treating patients with triple negative breast cancer that has spread to other places in the body (metastatic). Chemotherapy drugs, such as nab-paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Immunotherapy with monoclonal antibodies, such as durvalumab and tremelimumab, may induce changes in body's immune system and may interfere with the ability of tumor cells to grow and spread. Vaccines made from peptides may help the body build an effective immune response to kill tumor cells. It is not yet known whether giving nab-paclitaxel, durvalumab, and tremelimumab with or without neoantigen vaccine will work better in treating patients with triple negative breast cancer.



I. Evaluate the clinical response to nab-paclitaxel + durvalumab (MEDI4736) + tremelimumab + neoantigen vaccine (Arm 1) versus (vs.) nab-paclitaxel + durvalumab (MEDI4736) + tremelimumab (Arm 2) in patients with metastatic triple negative breast cancer (TNBC).


I. Evaluate the safety of nab-paclitaxel + durvalumab (MEDI4736) + tremelimumab + neoantigen vaccine vs. nab-paclitaxel + durvalumab (MEDI4736) + tremelimumab in patients with metastatic TNBC.


I. Assess the immune response induced by nab-paclitaxel + durvalumab (MEDI4736) + tremelimumab + neoantigen vaccine vs. nab-paclitaxel + durvalumab (MEDI4736) + tremelimumab in patients with metastatic TNBC.

II. Biomarkers of response to therapy will be assessed based on the research biopsies performed at baseline, following the chemotherapy run-in (Part A) and following nab-paclitaxel + durvalumab (MEDI4736) + tremelimumab +/- neoantigen vaccine (Part B).


PART A: Patients receive gemcitabine hydrochloride intravenously (IV) over 30 minutes and carboplatin IV over 30 minutes on days 1 and 8 of each cycle. Treatment repeats every 21 days for 6 cycles in the absence of disease progression or unacceptable toxicity. Beginning cycle 4, patients with progression of disease within the first 18 weeks may switch and receive nab-paclitaxel IV over 30 minutes on days 1, 8, and 15 for 2 cycles at the discretion of the treating physician.

PART B: Patients are randomized to 1 of 2 arms.

ARM I: Patients receive personalized synthetic long peptide vaccine and poly-ICLC subcutaneously (SC) on days 1, 4, 8, 15, 22, 50, and 78 in the absence of disease progression or unacceptable toxicity. Patients also receive tremelimumab IV over 60 minutes on day 1 of cycles 1-4, durvalumab IV over 60 minutes on day 1 of each cycle and nab-paclitaxel IV over 30 minutes on days 1, 8, and 15 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.

ARM II: Patients receive tremelimumab IV over 60 minutes on day 1 of cycles 1-4, durvalumab IV over 60 minutes on day 1 of each cycle and nab-paclitaxel IV over 30 minutes on days 1, 8, and 15 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up every 3 months for 1 year, then annually thereafter.

Condition Anatomic Stage IV Breast Cancer AJCC v8, Invasive Breast Carcinoma, Metastatic Triple-Negative Breast Carcinoma
Treatment gemcitabine hydrochloride, carboplatin, tremelimumab, Nab-paclitaxel, durvalumab, Poly ICLC, Personalized Synthetic Long Peptide Vaccine
Clinical Study IdentifierNCT03606967
SponsorNational Cancer Institute (NCI)
Last Modified on16 September 2022


Yes No Not Sure

Inclusion Criteria

Patients must have a histologically confirmed diagnosis of metastatic invasive triple negative breast cancer. Patients with clinical and/or radiologic suspicion of metastatic TNBC can be consented prior to this confirmation
Estrogen receptor (ER) and progesterone receptor (PR) less than Allred score of 3 OR less than 1% positive staining cells in the invasive component of the tumor
HER2 negative by fluorescence in situ hybridization (FISH) or immunohistochemistry (IHC) staining 0 or 1+
PD-L1 negative by any Food and Drug Administration (FDA) approved test
Patients may have measurable or evaluable disease
A tumor specimen obtained from relapsed metastatic or locally advanced disease (if applicable) must be submitted. Acceptable samples include core needle biopsies for deep tumor tissue (minimum 4 cores) or excisional, incisional, punch, or forceps biopsies for cutaneous, subcutaneous, or mucosal lesions. Formalin-fixed, paraffin-embedded (FFPE) tumor specimens in paraffin blocks are preferred. Fine-needle aspiration, brushing, cell pellet from pleural effusion, bone metastases, and lavage samples are not acceptable
No prior therapy for metastatic TNBC. Patients who have received taxane-based adjuvant therapy are required to have a disease-free interval of at least 12 months after completion of taxane therapy
Eastern Cooperative Oncology Group (ECOG) performance status =< 1 (Karnofsky >= 60%)
Age >= 18 years. Because no dosing or adverse event data are currently available on the use of durvalumab (MEDI4736) and tremelimumab in combination with neoantigen vaccine in patients < 18 years of age, children are excluded from this study, but will be eligible for future pediatric trials
Body weight > 30 kg
Must have a life expectancy of at least 12 weeks
Absolute neutrophil count >= 1,500/mcL
Platelets >= 100,000/mcL
Hemoglobin >= 9.0 g/dL
Serum bilirubin =< 1.5 x institutional upper limit of normal
Aspartate aminotransferase (AST) serum glutamic oxaloacetic transaminase (SGOT)/alanine aminotransferase (ALT) serum glutamic pyruvic transaminase (SGPT) =< 2.5 x institutional upper limit of normal unless liver metastases are present, in which case it must be =< 5 x institutional upper limit of normal
Calculated creatinine clearance > 40 mL/min by the Cockcroft-Gault formula or by 24-hour urine collection for determination of creatinine clearance
Evidence of post-menopausal status or negative urinary or serum pregnancy test for female pre-menopausal patients. Women will be considered post-menopausal if they have been amenorrheic for 12 months without an alternative medical cause. The following age-specific requirements apply
Women < 50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of exogenous hormonal treatments and if they have luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution or underwent surgical sterilization (bilateral oophorectomy or hysterectomy)
Women >= 50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of all exogenous hormonal treatments, had radiation-induced menopause with last menses > 1 year ago, had chemotherapy-induced menopause with last menses > 1 year ago, or underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy or hysterectomy)
The effects of durvalumab (MEDI4736) and tremelimumab and neoantigen vaccine on the
developing human fetus are unknown. For this reason and because these agents
Patient is willing and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations including follow up
may be teratogenic, women of child-bearing potential must agree to use
Human immunodeficiency virus (HIV)-positive patients are eligible provided they have a negative viral load, CD4 count > 250, and are on a stable antiretroviral regimen
Ability to understand and the willingness to sign a written informed consent document. Patients with impaired decision-making capacity who have a close caregiver or legal guardian are also eligible with the consent of the caregiver/guardian
adequate contraception (hormonal or barrier method of birth control
abstinence) prior to study entry, for the duration of study participation, and
through 180 days after completion of durvalumab (MEDI4736) and tremelimumab
Should a woman become pregnant or suspect she is pregnant while she or her
partner is participating in this study, she should inform her treating
physician immediately

Exclusion Criteria

Patients who are not considered to be candidates for carboplatin + gemcitabine for first line therapy of their metastatic triple negative breast cancer are not eligible
Patients who have had chemotherapy, radiotherapy (to more than 30% of the bone marrow), or biologic therapy within 30 days (42 days for nitrosoureas or mitomycin C) prior to entering the study
Patients who have received prior immunotherapy for metastatic disease
Patients who have not recovered from grade >= 2 adverse events due to prior anti-cancer therapy with the exception of alopecia, vitiligo, and the laboratory values defined in the inclusion criteria
Patients with grade >= 2 neuropathy will be evaluated on a case-by-case basis after consultation with the study physician
Receipt of live attenuated vaccination within 6 months prior to study entry or within 30 days of receiving durvalumab (MEDI4736) and tremelimumab
Note: Patients, if enrolled, should not receive live vaccine whilst receiving study treatment and up to 30 days after the last dose of study treatment
Current or prior use of immunosuppressive medication within 14 days before the first dose of durvalumab (MEDI4736) or tremelimumab. The following are exceptions to this
Intranasal, inhaled, topical steroids or local steroid injections (e.g. intra-articular injection)
Systemic corticosteroids at physiological doses which are not to exceed 10 mg/day of prednisone or an equivalent corticosteroid
Steroids as premedication for hypersensitivity reactions (e.g. CT scan premedication)
Patients who are receiving any other investigational agents or who have received an
investigational agent within the last 30 days
History of allergic reactions attributed to compounds of similar chemical or biologic composition to durvalumab (MEDI4736) and tremelimumab. Known allergy, or history of serious adverse reaction to vaccines, such as anaphylaxis, hives or respiratory difficulty
Major surgical procedure within 28 days prior to the first dose of durvalumab
Mean QT interval corrected for heart rate using Fridericia's formula (QTcF) >= 470 ms calculated from 3 electrocardiograms (ECGs) (within 15 minutes at 5 minutes apart)
(MEDI4736) and tremelimumab. Local surgery of isolated lesions for palliative
Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, uncontrolled hypertension, unstable angina pectoris, cardiac arrhythmia, interstitial lung disease, serious chronic gastrointestinal conditions associated with diarrhea, evidence of any acute or chronic viral illness or disease, or psychiatric illness/social situations that would limit compliance with study requirements
intent is acceptable
Pregnant women are excluded from this study because durvalumab (MEDI4736) and tremelimumab has the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with durvalumab (MEDI4736) and tremelimumab, breastfeeding should be discontinued if the mother is treated with durvalumab (MEDI4736) and tremelimumab. These potential risks may also apply to other agents used in this study. A negative serum pregnancy test is required no more than 7 days before study entry
Active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids, or immunosuppressive drugs). Replacement therapy (e.g. thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment
History of pneumonitis or interstitial lung disease
History of active primary immunodeficiency
Active infection including tuberculosis (clinical evaluation that includes clinical history, physical examination, and radiographic findings, and TB testing in line with local practice), hepatitis B (known positive hepatitis B virus [HBV] surface antigen [HBsAg] result), or hepatitis C. Patients with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody [anti-HBc] and absence of HBsAg) are eligible. Patients positive for hepatitis C (HCV) antibody are eligible only if polymerase chain reaction is negative for HCV ribonucleic acid (RNA)
The patient with a previous history of non-breast malignancy is eligible for this study only if the patient meets the following criteria for a cancer survivor. A cancer survivor is eligible provided the following criteria are met
Known central nervous system (CNS) disease, except for treated asymptomatic CNS
Patient has undergone potentially curative therapy for all prior malignancies
Patients have been considered disease free for at least 1 year (with the exception of basal cell or squamous cell carcinoma of the skin or carcinoma-in-situ of the cervix)
metastases. Patients with known brain metastases should be excluded from this
clinical trial because of their poor prognosis and because they often develop
progressive neurologic dysfunction that would confound the evaluation of
History of allogeneic organ transplantation
neurologic and other adverse events
Patients with a strong likelihood of non-adherence (such as difficulties in adhering
to follow-up schedule due to geographic distance from the treatment facility)
should not be knowingly registered
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