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About
This phase II trial studies how well pembrolizumab and lenvatinib work in treating patients with differentiated thyroid cancer that has spread to other places in the body or has come back and cannot be removed by surgery. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread.
Full description
PRIMARY OBJECTIVES:
I. To investigate the clinical efficacy, as indicated by the rate of complete response (CR) per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1, of combination therapy with pembrolizumab and lenvatinib in lenvatinib-naive patients with progressive radioiodine-refractory differentiated thyroid cancers (DTC). (Cohort 1) II. To determine the overall response rate (ORR) by the addition of pembrolizumab to patients with radioiodine-refractory DTC who have progressive disease on lenvatinib alone. (Cohort 2)
SECONDARY OBJECTIVES:
I. To determine the safety profile and toxicity of combination therapy with pembrolizumab and lenvatinib in patients with progressive DTC. (Cohort 1 and cohort 2) II. To determine progression-free survival (PFS) and overall survival (OS). (Cohort 1 and cohort 2)
CORRELATIVE RESEARCH OBJECTIVES:
I. To correlate tumor response (RECIST 1.1) with pretreatment frequency of CD8+ T cells in the primary and/or metastatic tumor. (Cohort 1 and cohort 2) II. To correlate tumor response (RECIST 1.1) with pretreatment PD-L1 and PD-L2 levels in the primary and/or metastatic tumor. (Cohort 1 and cohort 2) III. To correlate tumor response (RECIST 1.1) with pretreatment frequency of lymphocytes expressing CD3, CD4, PD-1, FoxP3, or CD20, and of CD163+ macrophages. (Cohort 1 and cohort 2) IV. To correlate tumor response (RECIST 1.1) with the phenotype and frequency of key leukocyte subsets (i.e., PD-1+ T cells, regulatory T cells [Tregs], myeloid subsets) in the peripheral blood before, at 6 and 18 weeks on therapy, and at 54 weeks (study completion), progressive disease (PD), or study withdrawal. (Cohort 1) V. To correlate tumor response (RECIST 1.1) with PD-1+ T cell functional capacity. (Cohort 1) VI. To correlate tumor response (RECIST 1.1) with serum anti-thyroglobulin antibody levels assessed before, and at 18 weeks on therapy. (Cohort 1 and 2) VII. To correlate tumor response (RECIST 1.1) with tumor mutation status. (Cohort 1) VIII. To broadly investigate mechanisms of response and resistance to combination therapy, gene expression profiles will be generated from frozen biopsies for analysis by ribonucleic acid-sequencing (RNA-Seq). (Cohort 1)
OUTLINE:
Patients receive lenvatinib orally (PO) once daily (QD) on days 1-21 and pembrolizumab intravenously (IV) over 30 minutes on day 1. Treatment repeats every 21 days for up to 19 cycles in the absence of disease progression or unacceptable toxicity. Patients may continue treatment for up to 35 cycles.
After completion of study treatment, patients are followed up every 3 months for up to 3 years.
Enrollment
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Inclusion criteria
Locally recurrent and unresectable and/or distant metastatic differentiated thyroid cancer (DTC), histologically or cytologically confirmed; the diagnosis of DTC includes the following subtypes: papillary thyroid cancer (PTC) (including but not limited to variants such as follicular variant, tall cell, columnar cell, Hurthle cell variant of papillary carcinoma, and poorly differentiated), follicular thyroid cancer (FTC), including insular variant, Hurthle cell carcinoma and poorly differentiated thyroid cancer
Measurable disease meeting the following criteria:
For cohort 1 only: evidence of disease progression =< 14 months prior to registration according to RECIST 1.1, as confirmed by the site study principal investigator (PI)
For cohort 2 only: progressive disease (PD) on lenvatinib per RECIST 1.1 =< 60 days prior to registration, as confirmed by the site study PI; patients need to have documented imaging and measurement of RECIST target lesions within 30 days of starting pembrolizumab
Radioiodine (RAI)-resistant disease as defined by one or more of the following criteria:
Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0 or 1
Absolute neutrophil count (ANC) >= 1,500 /mcL (obtained =< 30 days prior to registration)
Platelets >= 100,000 / mcL (obtained =< 30 days prior to registration)
Hemoglobin >= 9 g/dL or >= 5.6 mmol/L without transfusion or erythropoietin dependency (=< 7 days prior to registration) (obtained =< 30 days prior to registration)
Serum creatinine =< 1.5 X upper limit of normal (ULN) OR measured or calculated creatinine clearance (glomerular filtration rate [GFR] can also be used in place of creatinine or creatinine clearance [CrCl]) >= 60 mL/min for subject with creatinine levels > 1.5 X institutional ULN (obtained =< 30 days prior to registration)
Serum total bilirubin =< 1.5 X ULN OR direct bilirubin =< ULN for subjects with total bilirubin levels > 1.5 ULN (obtained =< 30 days prior to registration)
Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT]) and alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 X ULN OR =< 5 X ULN for subjects with liver metastases (obtained =< 30 days prior to registration)
Albumin >= 2.5 mg/dL (obtained =< 30 days prior to registration)
International normalized ratio (INR) or prothrombin time (PT) =< 1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or partial thromboplastin time (PTT) is within therapeutic range of intended use of anticoagulants (obtained =< 30 days prior to registration)
Activated partial thromboplastin time (aPTT) =< 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 (obtained =< 30 days prior to registration)
Adequately controlled blood pressure with or without antihypertensive medications defined as blood pressure (BP) < 150/90 mmHg at screening
Negative pregnancy test done =< 7 days prior to registration, for women of childbearing potential only
Ability to complete patient medication and blood pressure diaries by themselves or with assistance
Willing and able to provide informed written consent
Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)
Willing to provide tissue and blood samples for correlative research purposes
Exclusion criteria
Cohort 1 only: prior treatment with previous VEGFR active multikinase inhibitor
Cohort 2 only: discontinued lenvatinib due to toxicity
Pregnant or breastfeeding, or expecting to conceive or father children 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
Female subjects of childbearing potential: unwilling or unable to use 2 methods of birth control 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; NOTE: subjects of childbearing potential are those who have not been surgically sterilized or have not been free from menses for > 1 year
Male subjects: unwilling or unable to use an adequate method of contraception starting with the first dose of study therapy through 120 days after the last dose of study therapy
Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens
Immunocompromised patients and patients known to be human immunodeficiency virus (HIV) positive (HIV 1/2 antibodies) and currently receiving antiretroviral therapy
Currently participating and receiving study therapy (except lenvatinib for patients in cohort 2) or has participated in a study of an investigational agent and received study therapy within 4 weeks prior to registration
Diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy =< 7 days prior to the first dose of trial treatment
Known history of active TB (Bacillus tuberculosis)
Hypersensitivity to pembrolizumab or any of its excipients
Prior anti-cancer monoclonal antibody (mAb) =< 4 weeks prior to registration or who has not recovered (i.e., =< grade 1 or at baseline) from adverse events due to agents administered >= 4 weeks prior to registration
Prior chemotherapy, targeted small molecule therapy, or radiation therapy within 2 weeks prior to study day 1 (except lenvatinib for patients in cohort 2) or who has not recovered (i.e., =< grade 1 or at baseline) from adverse events due to a previously administered agent
NOTE:
Known additional malignancy that is progressing or requires active treatment; exceptions include basal cell carcinoma of the skin or squamous cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer
Known active central nervous system (CNS) metastases and/or carcinomatous meningitis; NOTE: subjects 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 >= 7 days prior to trial treatment; this exception does not include carcinomatous meningitis which is excluded regardless of clinical stability
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); NOTE: 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
Known history of, or any evidence of active, non-infectious pneumonitis that required steroids
Active infection requiring systemic therapy
History or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator
Known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial
Received prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent
Known active hepatitis B (e.g., hepatitis B surface antigen [HBsAg] reactive) or hepatitis C (e.g., hepatitis C virus [HCV] ribonucleic acid [RNA] [qualitative] is detected)
Received a live vaccine =< 30 days of planned start of study therapy; NOTE: seasonal influenza vaccines for injection are generally inactivated flu vaccines and are allowed; however intranasal influenza vaccines (e.g., Flu-Mist) are live attenuated vaccines, and are not allowed
Proteinuria > 1+ on dipstick urinalysis; patients with > 1+ proteinuria on dipstick urinalysis will undergo 24-hour urine collection for quantitative assessment; NOTE: patients with > 1 g/24 hours will be ineligible
Clinically significant gastrointestinal malabsorption syndrome
New York Heart Association congestive heart failure of grade II or above, unstable angina, myocardial infarction within the past 6 months, or serious cardiac arrhythmia associated with significant cardiovascular impairment within the past 6 months; ejection fraction (EF) by multi-gated acquisition (MUGA) or echo should not be less than the institutional lower limit of normal
Corrected QT (QTc) prolongation > 480 msec, as calculated by either the Bazett or Fridericia formula, as per institutional standard
Active hemoptysis (bright red blood > 1 teaspoon on more than one occasion) =< 3 weeks prior to registration
Cohort 2 only: more than one prior treatment with VEGFR active multikinase inhibitor prior to original start of lenvatinib
Primary purpose
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57 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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