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NCT03082534 · BASELINE

Baseline characteristics

Pembrolizumab Combined With Cetuximab for Treatment of Recurrent/Metastatic Head & Neck Squamous Cell Carcinoma · Source last updated 2026-10-01

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

denoms
  1. counts
    1. group Id
      BG000
      value
      33
    2. group Id
      BG001
      value
      25
    3. group Id
      BG002
      value
      10
    4. group Id
      BG003
      value
      10
    5. group Id
      BG004
      value
      78
    units
    Participants
groups
  1. description
    PD-1/PD-L1 inhibitor-naïve, cetuximab-naïve Pembrolizumab (Keytruda®): Pembrolizumab is administered on an outpatient basis. 200 mg pembrolizumab will be administered as a 30 minute (-5 min/+10 min) intravenous (IV) infusion every 3 weeks. Cetuximab (Erbitux®): The initial cetuximab dose of 400mg/m2 is administered on Cycle 1, Day 1 as a 120-minute IV infusion (maximum infusion rate 10mg/min).1 Subsequent weekly cetuximab doses of 250mg/m2 are administered as 60-minute IV infusions (maximum infusion rate 10mg/min). Pembrolizumab, Cetuximab: Pembrolizumab (KEYTRUDA®; MK-3475) is a potent and highly selective humanized monoclonal antibody (mAb) of the immunoglobulin G4 (IgG4)/kappa isotype designed to directly block the interaction between PD-1 and its ligands, programmed cell death ligand 1 (PD-L1) and programmed cell death ligand 2 (PD-L2). This blockade enhances functional activity of the target lymphocytes to facilitate tumor regression and ultimately immune rejection. Cetuximab (Erbitux®) binds specifically to the epidermal growth factor receptor (EGFR) on both normal and tumor cells, and competitively inhibits the binding of EGF and other ligands, such as transforming growth factor-alpha. Cetuximab can mediate antibody-dependent cellular cytotoxicity (ADCC), with in vitro assays and in vivo animal studies demonstrating that cetuximab inhibits the growth and survival of tumor cells expressing EGFR.
    id
    BG000
    title
    Cohort 1
  2. description
    PD-1/PD-L1 inhibitor-refractory, cetuximab-naïve Pembrolizumab (Keytruda®): Pembrolizumab is administered on an outpatient basis. 200 mg pembrolizumab will be administered as a 30 minute (-5 min/+10 min) intravenous (IV) infusion every 3 weeks. Cetuximab (Erbitux®): The initial cetuximab dose of 400mg/m2 is administered on Cycle 1, Day 1 as a 120-minute IV infusion (maximum infusion rate 10mg/min).1 Subsequent weekly cetuximab doses of 250mg/m2 are administered as 60-minute IV infusions (maximum infusion rate 10mg/min). Pembrolizumab, Cetuximab: Pembrolizumab (KEYTRUDA®; MK-3475) is a potent and highly selective humanized monoclonal antibody (mAb) of the immunoglobulin G4 (IgG4)/kappa isotype designed to directly block the interaction between PD-1 and its ligands, programmed cell death ligand 1 (PD-L1) and programmed cell death ligand 2 (PD-L2). This blockade enhances functional activity of the target lymphocytes to facilitate tumor regression and ultimately immune rejection. Cetuximab (Erbitux®) binds specifically to the epidermal growth factor receptor (EGFR) on both normal and tumor cells, and competitively inhibits the binding of EGF and other ligands, such as transforming growth factor-alpha. Cetuximab can mediate antibody-dependent cellular cytotoxicity (ADCC), with in vitro assays and in vivo animal studies demonstrating that cetuximab inhibits the growth and survival of tumor cells expressing EGFR.
    id
    BG001
    title
    Cohort 2
  3. description
    PD-1/PD-L1 inhibitor-refractory, cetuximab-refractory Pembrolizumab (Keytruda®): Pembrolizumab is administered on an outpatient basis. 200 mg pembrolizumab will be administered as a 30 minute (-5 min/+10 min) intravenous (IV) infusion every 3 weeks. Cetuximab (Erbitux®): The initial cetuximab dose of 400mg/m2 is administered on Cycle 1, Day 1 as a 120-minute IV infusion (maximum infusion rate 10mg/min).1 Subsequent weekly cetuximab doses of 250mg/m2 are administered as 60-minute IV infusions (maximum infusion rate 10mg/min). Pembrolizumab, Cetuximab: Pembrolizumab (KEYTRUDA®; MK-3475) is a potent and highly selective humanized monoclonal antibody (mAb) of the immunoglobulin G4 (IgG4)/kappa isotype designed to directly block the interaction between PD-1 and its ligands, programmed cell death ligand 1 (PD-L1) and programmed cell death ligand 2 (PD-L2). This blockade enhances functional activity of the target lymphocytes to facilitate tumor regression and ultimately immune rejection. Cetuximab (Erbitux®) binds specifically to the epidermal growth factor receptor (EGFR) on both normal and tumor cells, and competitively inhibits the binding of EGF and other ligands, such as transforming growth factor-alpha. Cetuximab can mediate antibody-dependent cellular cytotoxicity (ADCC), with in vitro assays and in vivo animal studies demonstrating that cetuximab inhibits the growth and survival of tumor cells expressing EGFR.
    id
    BG002
    title
    Cohort 3
  4. description
    cutaneous HNSCC Pembrolizumab (Keytruda®): Pembrolizumab is administered on an outpatient basis. 200 mg pembrolizumab will be administered as a 30 minute (-5 min/+10 min) intravenous (IV) infusion every 3 weeks. Cetuximab (Erbitux®): The initial cetuximab dose of 400mg/m2 is administered on Cycle 1, Day 1 as a 120-minute IV infusion (maximum infusion rate 10mg/min).1 Subsequent weekly cetuximab doses of 250mg/m2 are administered as 60-minute IV infusions (maximum infusion rate 10mg/min). Pembrolizumab, Cetuximab: Pembrolizumab (KEYTRUDA®; MK-3475) is a potent and highly selective humanized monoclonal antibody (mAb) of the immunoglobulin G4 (IgG4)/kappa isotype designed to directly block the interaction between PD-1 and its ligands, programmed cell death ligand 1 (PD-L1) and programmed cell death ligand 2 (PD-L2). This blockade enhances functional activity of the target lymphocytes to facilitate tumor regression and ultimately immune rejection. Cetuximab (Erbitux®) binds specifically to the epidermal growth factor receptor (EGFR) on both normal and tumor cells, and competitively inhibits the binding of EGF and other ligands, such as transforming growth factor-alpha. Cetuximab can mediate antibody-dependent cellular cytotoxicity (ADCC), with in vitro assays and in vivo animal studies demonstrating that cetuximab inhibits the growth and survival of tumor cells expressing EGFR.
    id
    BG003
    title
    Cohort 4
  5. description
    Total of all reporting groups
    id
    BG004
    title
    Total
measures
  1. classes
    1. categories
      1. measurements
        1. group Id
          BG000
          spread
          10.95
          value
          59.36
        2. group Id
          BG001
          spread
          11.95
          value
          65.76
        3. group Id
          BG002
          spread
          9.51
          value
          67.6
        4. group Id
          BG003
          spread
          15.68
          value
          66.3
        5. group Id
          BG004
          spread
          12.08
          value
          63.36
    dispersion Type
    STANDARD_DEVIATION
    param Type
    MEAN
    title
    Age, Continuous
    unit Of Measure
    years
  2. classes
    1. categories
      1. measurements
        1. group Id
          BG000
          value
          11
        2. group Id
          BG001
          value
          3
        3. group Id
          BG002
          value
          1
        4. group Id
          BG003
          value
          2
        5. group Id
          BG004
          value
          17
        title
        Female
      2. measurements
        1. group Id
          BG000
          value
          22
        2. group Id
          BG001
          value
          22
        3. group Id
          BG002
          value
          9
        4. group Id
          BG003
          value
          8
        5. group Id
          BG004
          value
          61
        title
        Male
    param Type
    COUNT_OF_PARTICIPANTS
    title
    Sex: Female, Male
    unit Of Measure
    Participants
  3. classes
    1. categories
      1. measurements
        1. group Id
          BG000
          value
          4
        2. group Id
          BG001
          value
          3
        3. group Id
          BG002
          value
          0
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          7
        title
        Hispanic or Latino
      2. measurements
        1. group Id
          BG000
          value
          27
        2. group Id
          BG001
          value
          21
        3. group Id
          BG002
          value
          9
        4. group Id
          BG003
          value
          10
        5. group Id
          BG004
          value
          67
        title
        Not Hispanic or Latino
      3. measurements
        1. group Id
          BG000
          value
          2
        2. group Id
          BG001
          value
          1
        3. group Id
          BG002
          value
          1
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          4
        title
        Unknown or Not Reported
    param Type
    COUNT_OF_PARTICIPANTS
    title
    Ethnicity (NIH/OMB)
    unit Of Measure
    Participants
  4. classes
    1. categories
      1. measurements
        1. group Id
          BG000
          value
          0
        2. group Id
          BG001
          value
          0
        3. group Id
          BG002
          value
          0
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          0
        title
        American Indian or Alaska Native
      2. measurements
        1. group Id
          BG000
          value
          4
        2. group Id
          BG001
          value
          0
        3. group Id
          BG002
          value
          0
        4. group Id
          BG003
          value
          1
        5. group Id
          BG004
          value
          5
        title
        Asian
      3. measurements
        1. group Id
          BG000
          value
          0
        2. group Id
          BG001
          value
          0
        3. group Id
          BG002
          value
          0
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          0
        title
        Native Hawaiian or Other Pacific Islander
      4. measurements
        1. group Id
          BG000
          value
          0
        2. group Id
          BG001
          value
          2
        3. group Id
          BG002
          value
          1
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          3
        title
        Black or African American
      5. measurements
        1. group Id
          BG000
          value
          25
        2. group Id
          BG001
          value
          19
        3. group Id
          BG002
          value
          8
        4. group Id
          BG003
          value
          9
        5. group Id
          BG004
          value
          61
        title
        White
      6. measurements
        1. group Id
          BG000
          value
          2
        2. group Id
          BG001
          value
          2
        3. group Id
          BG002
          value
          0
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          4
        title
        More than one race
      7. measurements
        1. group Id
          BG000
          value
          2
        2. group Id
          BG001
          value
          2
        3. group Id
          BG002
          value
          1
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          5
        title
        Unknown or Not Reported
    param Type
    COUNT_OF_PARTICIPANTS
    title
    Race (NIH/OMB)
    unit Of Measure
    Participants
  5. classes
    1. categories
      1. measurements
        1. group Id
          BG000
          value
          33
        2. group Id
          BG001
          value
          25
        3. group Id
          BG002
          value
          10
        4. group Id
          BG003
          value
          10
        5. group Id
          BG004
          value
          78
      title
      United States
    param Type
    NUMBER
    title
    Region of Enrollment
    unit Of Measure
    participants
Complete source fields
denoms
  1. counts
    1. group Id
      BG000
      value
      33
    2. group Id
      BG001
      value
      25
    3. group Id
      BG002
      value
      10
    4. group Id
      BG003
      value
      10
    5. group Id
      BG004
      value
      78
    units
    Participants
groups
  1. description
    PD-1/PD-L1 inhibitor-naïve, cetuximab-naïve Pembrolizumab (Keytruda®): Pembrolizumab is administered on an outpatient basis. 200 mg pembrolizumab will be administered as a 30 minute (-5 min/+10 min) intravenous (IV) infusion every 3 weeks. Cetuximab (Erbitux®): The initial cetuximab dose of 400mg/m2 is administered on Cycle 1, Day 1 as a 120-minute IV infusion (maximum infusion rate 10mg/min).1 Subsequent weekly cetuximab doses of 250mg/m2 are administered as 60-minute IV infusions (maximum infusion rate 10mg/min). Pembrolizumab, Cetuximab: Pembrolizumab (KEYTRUDA®; MK-3475) is a potent and highly selective humanized monoclonal antibody (mAb) of the immunoglobulin G4 (IgG4)/kappa isotype designed to directly block the interaction between PD-1 and its ligands, programmed cell death ligand 1 (PD-L1) and programmed cell death ligand 2 (PD-L2). This blockade enhances functional activity of the target lymphocytes to facilitate tumor regression and ultimately immune rejection. Cetuximab (Erbitux®) binds specifically to the epidermal growth factor receptor (EGFR) on both normal and tumor cells, and competitively inhibits the binding of EGF and other ligands, such as transforming growth factor-alpha. Cetuximab can mediate antibody-dependent cellular cytotoxicity (ADCC), with in vitro assays and in vivo animal studies demonstrating that cetuximab inhibits the growth and survival of tumor cells expressing EGFR.
    id
    BG000
    title
    Cohort 1
  2. description
    PD-1/PD-L1 inhibitor-refractory, cetuximab-naïve Pembrolizumab (Keytruda®): Pembrolizumab is administered on an outpatient basis. 200 mg pembrolizumab will be administered as a 30 minute (-5 min/+10 min) intravenous (IV) infusion every 3 weeks. Cetuximab (Erbitux®): The initial cetuximab dose of 400mg/m2 is administered on Cycle 1, Day 1 as a 120-minute IV infusion (maximum infusion rate 10mg/min).1 Subsequent weekly cetuximab doses of 250mg/m2 are administered as 60-minute IV infusions (maximum infusion rate 10mg/min). Pembrolizumab, Cetuximab: Pembrolizumab (KEYTRUDA®; MK-3475) is a potent and highly selective humanized monoclonal antibody (mAb) of the immunoglobulin G4 (IgG4)/kappa isotype designed to directly block the interaction between PD-1 and its ligands, programmed cell death ligand 1 (PD-L1) and programmed cell death ligand 2 (PD-L2). This blockade enhances functional activity of the target lymphocytes to facilitate tumor regression and ultimately immune rejection. Cetuximab (Erbitux®) binds specifically to the epidermal growth factor receptor (EGFR) on both normal and tumor cells, and competitively inhibits the binding of EGF and other ligands, such as transforming growth factor-alpha. Cetuximab can mediate antibody-dependent cellular cytotoxicity (ADCC), with in vitro assays and in vivo animal studies demonstrating that cetuximab inhibits the growth and survival of tumor cells expressing EGFR.
    id
    BG001
    title
    Cohort 2
  3. description
    PD-1/PD-L1 inhibitor-refractory, cetuximab-refractory Pembrolizumab (Keytruda®): Pembrolizumab is administered on an outpatient basis. 200 mg pembrolizumab will be administered as a 30 minute (-5 min/+10 min) intravenous (IV) infusion every 3 weeks. Cetuximab (Erbitux®): The initial cetuximab dose of 400mg/m2 is administered on Cycle 1, Day 1 as a 120-minute IV infusion (maximum infusion rate 10mg/min).1 Subsequent weekly cetuximab doses of 250mg/m2 are administered as 60-minute IV infusions (maximum infusion rate 10mg/min). Pembrolizumab, Cetuximab: Pembrolizumab (KEYTRUDA®; MK-3475) is a potent and highly selective humanized monoclonal antibody (mAb) of the immunoglobulin G4 (IgG4)/kappa isotype designed to directly block the interaction between PD-1 and its ligands, programmed cell death ligand 1 (PD-L1) and programmed cell death ligand 2 (PD-L2). This blockade enhances functional activity of the target lymphocytes to facilitate tumor regression and ultimately immune rejection. Cetuximab (Erbitux®) binds specifically to the epidermal growth factor receptor (EGFR) on both normal and tumor cells, and competitively inhibits the binding of EGF and other ligands, such as transforming growth factor-alpha. Cetuximab can mediate antibody-dependent cellular cytotoxicity (ADCC), with in vitro assays and in vivo animal studies demonstrating that cetuximab inhibits the growth and survival of tumor cells expressing EGFR.
    id
    BG002
    title
    Cohort 3
  4. description
    cutaneous HNSCC Pembrolizumab (Keytruda®): Pembrolizumab is administered on an outpatient basis. 200 mg pembrolizumab will be administered as a 30 minute (-5 min/+10 min) intravenous (IV) infusion every 3 weeks. Cetuximab (Erbitux®): The initial cetuximab dose of 400mg/m2 is administered on Cycle 1, Day 1 as a 120-minute IV infusion (maximum infusion rate 10mg/min).1 Subsequent weekly cetuximab doses of 250mg/m2 are administered as 60-minute IV infusions (maximum infusion rate 10mg/min). Pembrolizumab, Cetuximab: Pembrolizumab (KEYTRUDA®; MK-3475) is a potent and highly selective humanized monoclonal antibody (mAb) of the immunoglobulin G4 (IgG4)/kappa isotype designed to directly block the interaction between PD-1 and its ligands, programmed cell death ligand 1 (PD-L1) and programmed cell death ligand 2 (PD-L2). This blockade enhances functional activity of the target lymphocytes to facilitate tumor regression and ultimately immune rejection. Cetuximab (Erbitux®) binds specifically to the epidermal growth factor receptor (EGFR) on both normal and tumor cells, and competitively inhibits the binding of EGF and other ligands, such as transforming growth factor-alpha. Cetuximab can mediate antibody-dependent cellular cytotoxicity (ADCC), with in vitro assays and in vivo animal studies demonstrating that cetuximab inhibits the growth and survival of tumor cells expressing EGFR.
    id
    BG003
    title
    Cohort 4
  5. description
    Total of all reporting groups
    id
    BG004
    title
    Total
measures
  1. classes
    1. categories
      1. measurements
        1. group Id
          BG000
          spread
          10.95
          value
          59.36
        2. group Id
          BG001
          spread
          11.95
          value
          65.76
        3. group Id
          BG002
          spread
          9.51
          value
          67.6
        4. group Id
          BG003
          spread
          15.68
          value
          66.3
        5. group Id
          BG004
          spread
          12.08
          value
          63.36
    dispersion Type
    STANDARD_DEVIATION
    param Type
    MEAN
    title
    Age, Continuous
    unit Of Measure
    years
  2. classes
    1. categories
      1. measurements
        1. group Id
          BG000
          value
          11
        2. group Id
          BG001
          value
          3
        3. group Id
          BG002
          value
          1
        4. group Id
          BG003
          value
          2
        5. group Id
          BG004
          value
          17
        title
        Female
      2. measurements
        1. group Id
          BG000
          value
          22
        2. group Id
          BG001
          value
          22
        3. group Id
          BG002
          value
          9
        4. group Id
          BG003
          value
          8
        5. group Id
          BG004
          value
          61
        title
        Male
    param Type
    COUNT_OF_PARTICIPANTS
    title
    Sex: Female, Male
    unit Of Measure
    Participants
  3. classes
    1. categories
      1. measurements
        1. group Id
          BG000
          value
          4
        2. group Id
          BG001
          value
          3
        3. group Id
          BG002
          value
          0
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          7
        title
        Hispanic or Latino
      2. measurements
        1. group Id
          BG000
          value
          27
        2. group Id
          BG001
          value
          21
        3. group Id
          BG002
          value
          9
        4. group Id
          BG003
          value
          10
        5. group Id
          BG004
          value
          67
        title
        Not Hispanic or Latino
      3. measurements
        1. group Id
          BG000
          value
          2
        2. group Id
          BG001
          value
          1
        3. group Id
          BG002
          value
          1
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          4
        title
        Unknown or Not Reported
    param Type
    COUNT_OF_PARTICIPANTS
    title
    Ethnicity (NIH/OMB)
    unit Of Measure
    Participants
  4. classes
    1. categories
      1. measurements
        1. group Id
          BG000
          value
          0
        2. group Id
          BG001
          value
          0
        3. group Id
          BG002
          value
          0
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          0
        title
        American Indian or Alaska Native
      2. measurements
        1. group Id
          BG000
          value
          4
        2. group Id
          BG001
          value
          0
        3. group Id
          BG002
          value
          0
        4. group Id
          BG003
          value
          1
        5. group Id
          BG004
          value
          5
        title
        Asian
      3. measurements
        1. group Id
          BG000
          value
          0
        2. group Id
          BG001
          value
          0
        3. group Id
          BG002
          value
          0
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          0
        title
        Native Hawaiian or Other Pacific Islander
      4. measurements
        1. group Id
          BG000
          value
          0
        2. group Id
          BG001
          value
          2
        3. group Id
          BG002
          value
          1
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          3
        title
        Black or African American
      5. measurements
        1. group Id
          BG000
          value
          25
        2. group Id
          BG001
          value
          19
        3. group Id
          BG002
          value
          8
        4. group Id
          BG003
          value
          9
        5. group Id
          BG004
          value
          61
        title
        White
      6. measurements
        1. group Id
          BG000
          value
          2
        2. group Id
          BG001
          value
          2
        3. group Id
          BG002
          value
          0
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          4
        title
        More than one race
      7. measurements
        1. group Id
          BG000
          value
          2
        2. group Id
          BG001
          value
          2
        3. group Id
          BG002
          value
          1
        4. group Id
          BG003
          value
          0
        5. group Id
          BG004
          value
          5
        title
        Unknown or Not Reported
    param Type
    COUNT_OF_PARTICIPANTS
    title
    Race (NIH/OMB)
    unit Of Measure
    Participants
  5. classes
    1. categories
      1. measurements
        1. group Id
          BG000
          value
          33
        2. group Id
          BG001
          value
          25
        3. group Id
          BG002
          value
          10
        4. group Id
          BG003
          value
          10
        5. group Id
          BG004
          value
          78
      title
      United States
    param Type
    NUMBER
    title
    Region of Enrollment
    unit Of Measure
    participants

Download exact source JSON → · Snapshot ctgov-results-d643ffaf417bcef6d45eb5e0

Preserved source evidence · Not medical advice