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NCT03258554 · ADVERSE EVENTS

Adverse events

Radiation Therapy With Durvalumab or Cetuximab in Treating Patients With Locoregionally Advanced Head and Neck Cancer Who Cannot Take Cisplatin · Source last updated 2026-08-27

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

Adverse events occurred during the study; they are not necessarily caused by treatment. Serious events are not interchangeable with severe/grade 3–4 events. These safety populations may differ from efficacy populations.

Collection time frame
Weekly during RT, RT end, from end of RT: months 1, (Cetuximab: 2, 3,) 4, 8, 12, 18, 24, 30, 36, then annually. Additionally, prior to each adjuvant durvalumab cycle. Maximum follow-up at time of analysis= 4.2 yr.
Other-event reporting threshold
0%

All-cause mortality was assessed in all enrolled participants. Adverse events were assessed in enrolled participants who started study treatment. CTCAE 4.0 was used in the lead-in component and CTCAE 5.0 was used in the phase II component.

Participants affected / participants at risk, as reported
Safety groupSerious eventsOther eventsDeaths
(Lead-in) RT + Durvalumab

IMRT for seven weeks, 5 fractions/week. Durvalumab 1500 mg IV starts two weeks prior to RT and continues every 4 weeks for a total of seven cycles in the absence of disease progression or unacceptable toxicity.

4 / 1010 / 103 / 10
RT + Cetuximab

IMRT for seven weeks, 5 fractions/week. Cetuximab 400 mg/m\^2 IV starts one week prior to RT, then 250 mg/m\^2 weekly for seven additional cycles in the absence of disease progression or unacceptable toxicity.

51 / 6161 / 6117 / 63
RT + Durvalumab

IMRT for seven weeks, 5 fractions/week. Durvalumab 1500 mg IV starts two weeks prior to RT and continues every 4 weeks for a total of seven cycles in the absence of disease progression or unacceptable toxicity.

84 / 119118 / 11941 / 123

Group identifiers: EG000: (Lead-in) RT + Durvalumab · EG001: RT + Cetuximab · EG002: RT + Durvalumab

Serious adverse events

Event terms and counts are source-reported; expand to read more. A reporting threshold may omit less frequent events.

  1. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      5
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      9
      num At Risk
      119
    term
    Anemia
  2. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Febrile neutropenia
  3. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Leukocytosis
  4. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      3
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Atrial fibrillation
  5. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Atrial flutter
  6. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Cardiac disorders - Other
  7. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Chest pain - cardiac
  8. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      3
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      3
      num At Risk
      119
    term
    Heart failure
  9. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      5
      num At Risk
      119
    term
    Myocardial infarction
  10. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Pericardial effusion
  11. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      3
      num At Risk
      119
    term
    Sinus bradycardia
  12. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Sinus tachycardia

Other reported adverse events

Event terms and counts are source-reported; expand to read more. A reporting threshold may omit less frequent events.

  1. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (4.0)
    stats
    1. group Id
      EG000
      num Affected
      1
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Anemia
  2. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      19
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      43
      num At Risk
      119
    term
    Anemia
  3. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      2
      num At Risk
      119
    term
    Lymph node pain
  4. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      2
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Atrial fibrillation
  5. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      2
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Cardiac disorders - Other
  6. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      2
      num At Risk
      119
    term
    Chest pain - cardiac
  7. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Conduction disorder
  8. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      2
      num At Risk
      119
    term
    Heart failure
  9. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Myocardial infarction
  10. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      2
      num At Risk
      119
    term
    Palpitations
  11. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (4.0)
    stats
    1. group Id
      EG000
      num Affected
      1
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Sinus bradycardia
  12. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      2
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      6
      num At Risk
      119
    term
    Sinus bradycardia
Complete source fields
description
All-cause mortality was assessed in all enrolled participants. Adverse events were assessed in enrolled participants who started study treatment. CTCAE 4.0 was used in the lead-in component and CTCAE 5.0 was used in the phase II component.
event Groups
  1. deaths Num Affected
    3
    deaths Num At Risk
    10
    description
    IMRT for seven weeks, 5 fractions/week. Durvalumab 1500 mg IV starts two weeks prior to RT and continues every 4 weeks for a total of seven cycles in the absence of disease progression or unacceptable toxicity.
    id
    EG000
    other Num Affected
    10
    other Num At Risk
    10
    serious Num Affected
    4
    serious Num At Risk
    10
    title
    (Lead-in) RT + Durvalumab
  2. deaths Num Affected
    17
    deaths Num At Risk
    63
    description
    IMRT for seven weeks, 5 fractions/week. Cetuximab 400 mg/m\^2 IV starts one week prior to RT, then 250 mg/m\^2 weekly for seven additional cycles in the absence of disease progression or unacceptable toxicity.
    id
    EG001
    other Num Affected
    61
    other Num At Risk
    61
    serious Num Affected
    51
    serious Num At Risk
    61
    title
    RT + Cetuximab
  3. deaths Num Affected
    41
    deaths Num At Risk
    123
    description
    IMRT for seven weeks, 5 fractions/week. Durvalumab 1500 mg IV starts two weeks prior to RT and continues every 4 weeks for a total of seven cycles in the absence of disease progression or unacceptable toxicity.
    id
    EG002
    other Num Affected
    118
    other Num At Risk
    119
    serious Num Affected
    84
    serious Num At Risk
    119
    title
    RT + Durvalumab
frequency Threshold
0
other Events
  1. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (4.0)
    stats
    1. group Id
      EG000
      num Affected
      1
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Anemia
  2. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      19
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      43
      num At Risk
      119
    term
    Anemia
  3. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      2
      num At Risk
      119
    term
    Lymph node pain
  4. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      2
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Atrial fibrillation
  5. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      2
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Cardiac disorders - Other
  6. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      2
      num At Risk
      119
    term
    Chest pain - cardiac
  7. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Conduction disorder
  8. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      2
      num At Risk
      119
    term
    Heart failure
  9. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Myocardial infarction
  10. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      2
      num At Risk
      119
    term
    Palpitations
  11. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (4.0)
    stats
    1. group Id
      EG000
      num Affected
      1
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Sinus bradycardia
  12. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      2
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      6
      num At Risk
      119
    term
    Sinus bradycardia
serious Events
  1. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      5
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      9
      num At Risk
      119
    term
    Anemia
  2. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Febrile neutropenia
  3. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Blood and lymphatic system disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Leukocytosis
  4. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      3
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Atrial fibrillation
  5. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Atrial flutter
  6. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Cardiac disorders - Other
  7. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Chest pain - cardiac
  8. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      3
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      3
      num At Risk
      119
    term
    Heart failure
  9. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      5
      num At Risk
      119
    term
    Myocardial infarction
  10. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      1
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      0
      num At Risk
      119
    term
    Pericardial effusion
  11. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      3
      num At Risk
      119
    term
    Sinus bradycardia
  12. assessment Type
    NON_SYSTEMATIC_ASSESSMENT
    organ System
    Cardiac disorders
    source Vocabulary
    CTCAE (5.0)
    stats
    1. group Id
      EG000
      num Affected
      0
      num At Risk
      10
    2. group Id
      EG001
      num Affected
      0
      num At Risk
      61
    3. group Id
      EG002
      num Affected
      1
      num At Risk
      119
    term
    Sinus tachycardia
time Frame
Weekly during RT, RT end, from end of RT: months 1, (Cetuximab: 2, 3,) 4, 8, 12, 18, 24, 30, 36, then annually. Additionally, prior to each adjuvant durvalumab cycle. Maximum follow-up at time of analysis= 4.2 yr.

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Preserved source evidence · Not medical advice