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Pembrolizumab in Patients With Locally Advanced or Metastatic Skin Cancer

A Phase II Trial of Pembrolizumab (MK-3475) in Metastatic Cutaneous Squamous Cell Carcinoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02964559
Enrollment
11
Registered
2016-11-16
Start date
2017-01-27
Completion date
2021-05-18
Last updated
2024-06-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Recurrent Skin Carcinoma, Skin Squamous Cell Carcinoma

Brief summary

This phase II trial studies how well pembrolizumab works in treating patients with skin cancer that has spread from where it started to nearby tissue, lymph nodes, or other parts of the body. Monoclonal antibodies, such as pembrolizumab, may interfere with the ability of tumor cells to grow and spread.

Detailed description

PRIMARY OBJECTIVE: -To establish the response rate of pembrolizumab in metastatic cutaneous squamous cell carcinoma. SECONDARY OBJECTIVES: -To determine the 6-month progression-free survival and 1 year overall survival of metastatic cutaneous squamous cell carcinoma of the skin (cSCC) treated with pembrolizumab. OUTLINE: Patients receive pembrolizumab intravenously (IV) over 30 minutes on day 1. Courses repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 30 days and then every 8-12 weeks.

Interventions

BIOLOGICALPembrolizumab

Given IV

Sponsors

Merck Sharp & Dohme LLC
CollaboratorINDUSTRY
National Institutes of Health (NIH)
CollaboratorNIH
National Cancer Institute (NCI)
CollaboratorNIH
Emory University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* All subjects must have cutaneous squamous cell carcinoma that is not curable by surgery or radiation; both locally advanced and metastatic squamous cell carcinoma will be included. * Be willing and able to provide written informed consent/assent for the trial. * Have measurable disease based on Response Evaluation Criteria in Solid Tumors (RECIST) 1.1. * Be willing to provide tissue from a newly obtained core or excisional biopsy of a tumor lesion. Newly-obtained is defined as a specimen obtained up to 6 weeks (42 days) prior to initiation of treatment on day 1. Subjects for whom newly-obtained samples cannot be provided (e.g. inaccessible or subject safety concern) may submit an archived specimen only upon agreement from the sponsor. * Be willing to undergo normal skin biopsy prior to initiation of treatment and after treatment. * Have a performance status of 0 or 1 on the Eastern Cooperative Oncology Group (ECOG) performance scale. * Absolute neutrophil count (ANC) ≥ 1,500/microliter (mcL) * Platelets ≥ 100,000/mcL * Hemoglobin ≥ 9 g/dL or ≥ 5.6 mmol/L without transfusion or erythropoietin (EPO) dependency (within 7 days of assessment) * 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 * Serum total bilirubin ≤ 1.5 X ULN OR direct bilirubin ≤ ULN for subjects with total bilirubin levels \> 1.5 ULN * 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 * Albumin ≥ 2.5 mg/dL * 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. * Activated partial thromboplastin rime (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. * Female subject 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. * Female subjects of childbearing potential should be willing 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; subjects of childbearing potential are those who have not been surgically sterilized or have not been free from menses for \> 1 year. * Male subjects should agree 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.

Exclusion criteria

* Is currently participating and receiving study therapy or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the first dose of treatment. * Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of trial treatment, patients with human immunodeficiency virus (HIV) adequately controlled on antiretrovirals (undetectable viral load) and patients with chronic lymphocytic leukemia (CLL) not requiring systemic treatment will be included; in addition, steroids for physiologic replacement will be allowed (must be equal to or less than 10mg of prednisone/day). * Has a known history of active TB (bacillus tuberculosis). * Hypersensitivity to pembrolizumab or any of its excipients. * Has had a prior anti-cancer monoclonal antibody (mAb) within 4 weeks prior to study day 1 or who has not recovered (i.e., ≤ grade 1 or at baseline) from adverse events due to agents administered more than 4 weeks earlier. * Has had prior chemotherapy, targeted small molecule therapy, or radiation therapy within 2 weeks prior to study day 1 or who has not recovered (i.e., ≤ grade 1 or at baseline) from adverse events due to a previously administered agent. * Note: subjects with ≤ grade 2 neuropathy are an exception to this criterion and may qualify for the study. * Note: if subject received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting therapy. * Has a known additional malignancy that is progressing or requires active treatment; exceptions include basal cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer. Asymptomatic CLL, not requiring intervention will be included as long as patients meet routine laboratory parameters of the study as outlined above. In addition, patients who have undergone curative bone marrow transplant and currently not requiring immunosuppression, will be allowed on study. * Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis; 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 at least 7 days prior to trial treatment; this exception does not include carcinomatous meningitis which is excluded regardless of clinical stability. * Has 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. * Has a history of (non-infectious) pneumonitis that required steroids or current pneumonitis. * Has an active infection requiring systemic therapy; exception HIV on antiretrovirals with negative viral load. * Has a 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. * 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 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. * Has received prior therapy with an anti-programmed cell death (PD)-1, anti- programmed cell death 1 ligand (PD-L)1, or anti-PD-L2 agent. * Has 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). * Has received a live vaccine within 30 days of planned start of study therapy. 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. * cSCC that is curable via radiation or surgery; palliative radiation is allowed as long as measurable disease outside radiation field is present for study.

Design outcomes

Primary

MeasureTime frameDescription
Response Rate of PembrolizumabUp to 1 year after treatment discontinuation (max treatment duration of 3 years)Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions

Secondary

MeasureTime frameDescription
Overall SurvivalUp to 1 year after treatment discontinuation (max treatment duration of 3 years)Number of patients who were alive 1 year after their respective treatment completion dates
Progression-free SurvivalUp to 6 months after treatment discontinuation (max treatment duration of 3 years)Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions

Countries

United States

Participant flow

Participants by arm

ArmCount
Pembrolizumab
Patients receive pembrolizumab IV over 30 minutes on day 1. Courses repeat every 3 weeks in the absence of disease progression or unacceptable toxicity.
11
Total11

Baseline characteristics

CharacteristicPembrolizumab
Age, Continuous67 years
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Region of Enrollment
United States
11 participants
Sex: Female, Male
Female
2 Participants
Sex: Female, Male
Male
9 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 11
other
Total, other adverse events
11 / 11
serious
Total, serious adverse events
6 / 11

Outcome results

Primary

Response Rate of Pembrolizumab

Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions

Time frame: Up to 1 year after treatment discontinuation (max treatment duration of 3 years)

Population: all patients except patient diagnosed with covid-19

ArmMeasureValue (NUMBER)
Treatment (Pembrolizumab)Response Rate of Pembrolizumab72.73 percentage of participants
Secondary

Overall Survival

Number of patients who were alive 1 year after their respective treatment completion dates

Time frame: Up to 1 year after treatment discontinuation (max treatment duration of 3 years)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Pembrolizumab)Overall Survival11 Participants
Secondary

Progression-free Survival

Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions

Time frame: Up to 6 months after treatment discontinuation (max treatment duration of 3 years)

ArmMeasureValue (NUMBER)
Treatment (Pembrolizumab)Progression-free Survival81.8 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026