Pembrolizumab and Lenvatinib in Advanced/Metastatic Neuroendocrine Prostate Cancer

  • STATUS
    Recruiting
  • End date
    Jul 25, 2023
  • participants needed
    50
  • sponsor
    Ulka Vaishampayan
Updated on 25 July 2021

Summary

Eligible patients will be treated with the combination of lenvatinib and pembrolizumab. A cycle equals 21 days and therapy will continue until radiographic progression, intolerable toxicity, or patient/physician wishes to discontinue protocol therapy. A maximum of 35 cycles may be administered. On Day 1, when both pembrolizumab and lenvatinib are administered, patients should take the lenvatinib per their normal routine.

Details
Condition Neuroendocrine Tumor, Neuroectodermal Tumor, Metastatic Prostate Cancer, Prostate Cancer Metastatic, neuroendocrine tumors, neuroendocrine tumour
Treatment Pembrolizumab, Lenvatinib
Clinical Study IdentifierNCT04848337
SponsorUlka Vaishampayan
Last Modified on25 July 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Written informed consent and HIPAA authorization for release of personal health information prior to registration. NOTE: HIPAA authorization may be included in the informed consent or obtained separately
Age 18 years at the time of consent
Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 within 7 days prior to the date of registration
The subject has histologically proven prostate cancer with radiologic evidence of metastases and at least one of the following
Small-cell or NEPC morphology (determined by the enrolling center) on the basis of tissue sample
Prostate adenocarcinoma with greater than 50% IHC staining for neuroendocrine markers (e.g., chromogranin and synaptophysin)
Development of liver metastases in the absence of PSA progression, as defined by Prostate Cancer Working Group 3 criteria
Serum chromogranin A level 5 upper limit of normal (ULN) and/or serum neuron specific enolase (NSE) 2 ULN
Subject has adequate organ function as defined in the table below; all screening labs to be obtained within 10 days prior to Cycle 1 Day 1
Absolute neutrophil count (ANC) 1500/mm3without colony stimulating factor support
Platelets 100,000/mm3
Hemoglobin 9 g/dL
Serum creatinine 1.5 x ULN or creatinine clearance (CrCl) 30 mL/min. For creatinine clearance estimation, the Cockcroft and Gault equation should be used
Bilirubin 1.5 x the upper limit of normal (ULN) OR direct bilirubin ULN for participants with total bilirubin levels >1.5 ULN. For subjects with known Gilbert's disease, bilirubin 3.0 mg/dL
Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) 2.5 x ULN if no liver involvement, or 5 and/or ULN with liver involvement
International normalized ratio (INR) OR prothrombin time (PT), Activated partial thromboplastin time (aPTT) 1.5 ULN unless participant is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulants
Urine protein < 2+ by urine dipstick
A male participant must agree to use of contraception during the treatment period and for at least 120 days after the last dose of study treatment and refrain from donating sperm during this period
Projected life expectancy of at least 6 months as determined by treating physician
As determined by the enrolling physician or protocol designee, ability of the subject to understand and comply with study procedures for the entire length of the study

Exclusion Criteria

Received prior therapy with VEGF-TKI, immune checkpoint inhibitor, an anti-PD-1, anti-PD-L1, or anti PD L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (eg, CTLA-4, OX 40, CD137)
Received prior systemic anti-cancer therapy including investigational agents within 3 weeks prior to registration. NOTE: Participants must have recovered from all AEs due to previous therapies to Grade 1 or baseline. Participants with Grade 2 neuropathy may be eligible. NOTE: If participant received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting study treatment
Received more than two prior chemotherapy regimens for metastatic prostate cancer. Prior therapy with androgen receptor axis targeted agents is allowed but needs to be discontinued at least 2 weeks prior to study therapy. Prior therapy with Rad-223 or other radiopharmaceuticals is permitted but study therapy should be started at least 4 weeks after the last dose
Concurrent treatment with anti-androgen medications
Received prior radiotherapy within 2 weeks of start of study treatment. Participants must have recovered from all radiation-related toxicities, not require corticosteroids, and not have had radiation pneumonitis. A 1-week washout is permitted for palliative radiation ( 2 weeks of radiotherapy) to non-CNS disease
Currently participating in or has participated in a study of an investigational agent or has used an investigational device within 3 weeks prior to the first dose of study treatment. NOTE: Participants who have entered the follow-up phase of an investigational study may participate as long as it has been 3 weeks after the last dose of the previous investigational agent
Uncontrolled blood pressure (Systolic BP>140 mmHg or diastolic BP >90 mmHg) despite an optimized regimen of antihypertensive medication
Presence of non-healing wounds after surgical procedures
Known active CNS metastases and/or carcinomatous meningitis. Participants with previously treated brain metastases may participate provided they are radiologically stable, i.e. without evidence of progression for at least 4 weeks by repeat imaging (note that the repeat imaging should be performed during study screening), clinically stable and without requirement of steroid treatment for at least 14 days prior to first dose of study treatment
Received a live vaccine within 30 days prior to the first dose of study drug. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster (chicken pox), yellow fever, rabies, Bacillus Calmette-Gurin (BCG), and typhoid vaccine. Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (eg, FluMist) are live attenuated vaccines and are not allowed
Significant cardiovascular impairment: history of congestive heart failure greater than New York Heart Association (NYHA) Class II, unstable angina, myocardial infarction or stroke within 6 months of the first dose of study drug, or cardiac arrhythmia requiring medical treatment at Screening
Bleeding or thrombotic disorders or subjects at risk for severe hemorrhage. The degree of tumor invasion/infiltration of major blood vessels (e.g. carotid artery) should be considered because of the potential risk of severe hemorrhage associated with tumor shrinkage/necrosis following lenvatinib therapy
Subjects having > 1+ proteinuria on urine dipstick testing unless a 24-hour urine collection for quantitative assessment indicates that the urine protein is <1 g/24 hours
Diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior to the first dose of study drug
Severe hypersensitivity ( Grade 3) to pembrolizumab and/or any of its excipients
Severe hypersensitivity ( Grade 3) to lenvatinib and/or any of its excipients
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 (eg., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment. Replacement steroids for adrenal insufficiency or daily dose equivalent of 10 mg prednisone are allowed
History of (non-infectious) pneumonitis that required steroids or has current pneumonitis
Active infection requiring systemic therapy
Known additional malignancy that is progressing or has required active treatment within the past 3 years. NOTE: Participants with basal cell carcinoma of the skin, squamous cell carcinoma of the skin or carcinoma in situ (e.g. breast carcinoma, cervical cancer in situ) that have undergone potentially curative therapy are not excluded. Subjects with other solid tumors treated curatively and without evidence of recurrence for at least 2 years prior to enrollment may be eligible for study after discussion with the sponsor-investigator
Known history of Human Immunodeficiency Virus (HIV). NOTE: HIV testing is not required unless mandated by a local health authority
Known history of Hepatitis B (defined as Hepatitis B surface antigen [HBsAg] reactive) or known active Hepatitis C virus (defined as HCV RNA [qualitative] is detected) infection. NOTE: Hepatitis B and Hepatitis C testing is not required unless clinical history indicates that this is likely
Known history of active TB (Bacillus Tuberculosis)
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