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Radiation Therapy With Cisplatin or Cetuximab in Treating Patients With Oropharyngeal Cancer

Phase III Trial of Radiotherapy Plus Cetuximab Versus Chemoradiotherapy in HPV-Associated Oropharynx Cancer

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01302834
Enrollment
987
Registered
2011-02-24
Start date
2011-06-01
Completion date
2025-09-04
Last updated
2026-07-20

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

Conditions

Head and Neck Cancer, Precancerous Condition

Keywords

stage III squamous cell carcinoma of the oropharynx, stage IV squamous cell carcinoma of the oropharynx, human papilloma virus infection

Brief summary

RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells and shrink tumors. Drugs used in chemotherapy, such as cisplatin, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Monoclonal antibodies, such as cetuximab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. It is not yet known whether radiation therapy is more effective with cisplatin or cetuximab in treating oropharyngeal cancer. PURPOSE: This phase III trial is studying radiation therapy with cisplatin or cetuximab to see how well it works in treating patients with oropharyngeal cancer.

Detailed description

OBJECTIVES: Primary * To determine whether substitution of cisplatin with cetuximab will result in comparable 5-year overall survival. Secondary * To monitor and compare progression-free survival for "safety". * To compare patterns of failure (locoregional vs distant). * To compare acute toxicity profiles (and overall toxicity burden). * To compare overall quality of life (QOL) short-term (\< 6 months) and long-term (1 year). * To compare QOL Swallowing Domains short-term and long-term. * To compare clinician-reported versus patient-reported CTCAE toxicity events. * To explore differences in the cost effectiveness of cetuximab as compared to cisplatin. * To explore differences in work status and time to return to work. * To compare patient-reported changes in hearing. * To compare CTCAE v. 4 late toxicity at 1, 2, and 5 years. * To evaluate the effect of tobacco exposure (and other exposures) as measured by standardized computer-assisted self interview (CASI) on overall survival and progression-free survival. * To pilot CASI collection of patient reported outcomes in a cooperative group setting. * To determine whether specific molecular profiles are associated with overall or progression-free survival. * To investigate associations between changes in serum biomarkers or human papilloma virus (HPV)-specific cellular immune responses measured at baseline and three months with overall or progression-free survival. OUTLINE: This is a multicenter study. Patients are stratified according to T stage (T1-2 vs T 3-4), N stage (N0-2a vs N2b-3), Zubrod performance status (0 vs 1), and smoking history (≤ 10 pack-years vs \> 10 pack-years). Patients are randomized to 1 of 2 treatment arms. Patients may complete quality-of-life questionnaires and risk factors for head and neck cancer surveys at baseline, periodically during study, and at follow-up for 1 year. After completion of study therapy, patients are followed up at 1-3 months, every 3 months for 2 years, every 6 months for 3 years, and then annually thereafter.

Interventions

BIOLOGICALcetuximab

400 mg/m2 IV 5-7 days before IMRT then 250 mg/m2 IV weekly for 7 weeks

DRUGcisplatin

100 mg/m2 IV on days 1 and 22 of IMRT

RADIATIONIMRT

35 fractions over 6 weeks, 6 fractions per week, 2 Gray per fraction to total dose of 70 Gy.

Sponsors

Radiation Therapy Oncology Group
Lead SponsorNETWORK
National Cancer Institute (NCI)
CollaboratorNIH
NRG Oncology
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 120 Years
Healthy volunteers
No

Inclusion criteria

1. Pathologically (histologically or cytologically) proven diagnosis of squamous cell carcinoma (including the histological variants papillary squamous cell carcinoma and basaloid squamous cell carcinoma) of the oropharynx (tonsil, base of tongue, soft palate, or oropharyngeal walls). 2. Patients must be positive for p16, determined by central review prior to randomization. 3. Patients must have clinically or radiographically evident measurable disease at the primary site or at nodal stations. Tonsillectomy or local excision of the primary without removal of nodal disease is permitted, as is excision removing gross nodal disease but with intact primary site. Limited neck dissections retrieving ≤ 4 nodes are permitted and considered as non-therapeutic nodal excisions. Fine needle aspirations of the neck are insufficient due to limited tissue for retrospective central review. Biopsy specimens from the primary or nodes measuring at least 3-5 mm are required. 4. Clinical stage T1-2, N2a-N3 or T3-4, any N (AJCC, 7th ed.; see Appendix III), including no distant metastases, based upon the following minimum diagnostic workup: * General history and physical examination by a radiation oncologist and medical oncologist within 8 weeks prior to registration; * Examination by an ear, nose, and throat (ENT) or head and neck surgeon, including laryngopharyngoscopy (mirror and/or fiberoptic and/or direct procedure) within 8 weeks prior to registration; * One of the following combinations of imaging is required within 8 weeks prior to registration: 1. A computerized tomography (CT) scan of the neck (with contrast) and a chest CT scan (with or without contrast); 2. or a magnetic resonance imaging (MRI) scan of the neck (with contrast) and a chest CT scan (with or without contrast); 3. or a CT scan of neck (with contrast) and a positron emission tomography (PET)/CT of neck and chest (with or without contrast); 4. or an MRI of the neck (with contrast) and a PET/CT of neck and chest (with or without contrast). Note: A CT scan of neck and/or a PET/CT performed for radiation planning and read by a radiologist may serve as both staging and planning tools. 5. Zubrod Performance Status 0-1 within 2 weeks prior to registration 6. Age ≥ 18; 7. Complete blood count (CBC)/differential obtained within 2 weeks prior to registration on study, with adequate bone marrow function, defined as follows: * Absolute neutrophil count (ANC) \> 1,500 cells/mm3; * Platelets \> 100,000 cells/mm3; * Hemoglobin (Hgb) \> 8.0 g/dl; Note: The use of transfusion or other intervention to achieve Hgb \> 8.0 g/dl is acceptable. 8. Adequate hepatic function, defined as follows: * Bilirubin \< 2 mg/dl within 2 weeks prior to registration; * Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) \< 3 x the upper limit of normal within 2 weeks prior to registration; 9. Adequate renal function, defined as follows: • Serum creatinine \< 1.5 mg/dl within 2 weeks prior to registration or creatinine clearance (CCr) ≥ 50 ml/min within 2 weeks prior to registration determined by 24-hour collection or estimated by Cockcroft-Gault formula: CCr male = \[(140 - age) x (wt in kg)\] \[(Serum Cr mg/dl) x (72)\] CCr female = 0.85 x (CCr male) 10. Patients must provide their smoking history (for stratification) via the computer-assisted self interview (CASI) head and neck risk factor survey tool. 11. Negative serum pregnancy test within 2 weeks prior to registration for women of childbearing potential; 12. Women of childbearing potential and male participants must agree to use a medically effective means of birth control throughout their participation in the treatment phase of the study and until at least 60 days following the last study treatment. 13. Patients who are human immunodeficiency virus (HIV) positive but have no prior acquired immune deficiency syndrome (AIDS) -defining illness and have CD4 cells of at least 350/mm3 are eligible. Patient HIV status must be known prior to registration. Patients must not be sero-positive for Hepatitis B (Hepatitis B surface antigen positive or anti-hepatitis B core antigen positive) or sero-positive for Hepatitis C (anti-Hepatitis C antibody positive). However, patients who are immune to hepatitis B (anti-Hepatitis B surface antibody positive) are eligible (e.g. patients immunized against hepatitis B). HIV-positive patients must not have multi-drug resistant HIV infection or other concurrent AIDS-defining conditions. 14. Patient must provide study specific informed consent prior to study entry, including consent for mandatory submission of tissue for required, central p16 review and consent to participate in the computer-assisted self interview (CASI) survey questions regarding smoking history.

Exclusion criteria

1. Cancers considered to be from an oral cavity site (oral tongue, floor mouth, alveolar ridge, buccal or lip), nasopharynx, hypopharynx, or larynx, even if p16 positive, are excluded. Carcinoma of the neck of unknown primary site origin (even if p16 positive) are excluded from participation. 2. Stage T1-2, N0-1; 3. Distant metastasis or adenopathy below the clavicles; 4. Gross total excision of both primary and nodal disease; this includes tonsillectomy, local excision of primary site, and nodal excision that removes all clinically and radiographically evident disease. 5. Simultaneous primaries or bilateral tumors; 6. Prior invasive malignancy (except non-melanomatous skin cancer) unless disease free for a minimum of 3 years (For example, carcinoma in situ of the breast, oral cavity, or cervix are all permissible); 7. Prior systemic chemotherapy for the study cancer; note that prior chemotherapy for a different cancer is allowable; 8. Prior radiotherapy to the region of the study cancer that would result in overlap of radiation therapy fields; 9. Severe, active co-morbidity, defined as follows: * 9.1 Unstable angina and/or congestive heart failure requiring hospitalization within the last 6 months; * 9.2 Transmural myocardial infarction within the last 6 months; * 9.3 Acute bacterial or fungal infection requiring intravenous antibiotics at the time of registration; * 9.4 Chronic Obstructive Pulmonary Disease exacerbation or other respiratory illness requiring hospitalization or precluding study therapy within 30 days of registration; * 9.5 Hepatic insufficiency resulting in clinical jaundice and/or coagulation defects; note, however, that laboratory tests for liver function and coagulation parameters are not required for entry into this protocol. * 9.6 Acquired Immune Deficiency Syndrome (AIDS) based upon current Centers for Disease Control and Prevention (CDC) definition with immune compromise greater than that noted in Section 3.1.13; note, however, that HIV testing is not required for entry into this protocol. The need to exclude patients with AIDS from this protocol is necessary because the treatments involved in this protocol may be significantly immunosuppressive. Protocol-specific requirements may also exclude immuno-compromised patients. 10. Pregnancy or women of childbearing potential and men who are sexually active and not willing/able to use medically acceptable forms of contraception; this exclusion is necessary because the treatment involved in this study may be significantly teratogenic. 11. Prior allergic reaction to cisplatin or cetuximab; 12. Prior cetuximab or other anti-EGFR therapy.

Design outcomes

Primary

MeasureTime frameDescription
Overall SurvivalFrom randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.An event for overall survival is death due to any cause. Survival time is defined as time from randomization to the date of death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is hazard ratio, which is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Secondary

MeasureTime frameDescription
Progression-free SurvivalFrom randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.An event for progression-free survival is local, regional, or distant disease progression or death due to any cause. Progression-free survival time is defined as time from randomization to the date of progression/death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is the distribution of progression-free survival times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.
Time to Local-regional FailureFrom randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.Failure for local-regional failure endpoint was defined as local or regional progression, salvage surgery of the primary tumor with tumor present/unknown, salvage neck dissection with tumor present/unknown \> 20 weeks after the end of radiation therapy, death due to study cancer without documented progression, or death due to unknown causes without documented progression; distant metastasis and death due to other causes were considered competing risks. Local-regional failure time is defined as time from randomization to the date of progression/death or last known follow-up (censored). Rates are estimated by the cumulative incidence method. The protocol endpoint is the distribution of local-regional failure times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.
Time to Distant MetastasisFrom randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.Failure for distant metastasis endpoint was defined as distant progression; local-regional failure and death due to any cause were considered competing risks. Distant metastasis time is defined as time from randomization to the date of progression/death or last known follow-up (censored). Rates are estimated by the cumulative incidence method. The protocol endpoint is the distribution of distant metastasis times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.
Time to Secondary Primary CancerFrom randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.Failure for second primary endpoint was defined as reporting of a new primary cancer; death due to any cause was considered a competing risk. Second primary time is defined as time from randomization to the date of second primary or last known follow-up (censored). Rates are estimated by the cumulative incidence method. The protocol endpoint is the distribution of second primary cancer times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.
Distribution of First Progression EventsFrom randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.The first event type for progression-free survival is counted for each participant. Possible first progression events are local, regional, or distant progression, any combination of these, or death. The frequency table of these events is also referred to as "Pattern of failure."
Percentage of Participants Experiencing Early DeathFrom randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.Early death is defined as death due to adverse event or within 30 days of treatment completion.
Percentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: During TreatmentFrom start of treatment to end of treatment, approximately 6 weeksAcute adverse events (AE) are defined as occurring within 180 days from the end of treatment. "Treatment-related" means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE
Percentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 1 Month After End of Study TreatmentFrom start of treatment to approximately 2.5 months (1 month after the end of treatment)Acute adverse events (AE) are defined as occurring within 180 days from the end of treatment. "Treatment-related" means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE
Percentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 3 Months After the End of Study TreatmentFrom start of treatment to approximately 4.5 months (3 months after the end of treatment)Acute adverse events (AE) are defined as occurring within 180 days from the end of treatment. "Treatment-related" means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE
Percentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 6 Months After the End of Study TreatmentFrom start of treatment to approximately 7.5 months (6 months after the end of treatment)Acute adverse events (AE) are defined as occurring within 180 days from the end of treatment. "Treatment-related" means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE
Percentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 1 Year After the End of Study TreatmentFrom start of treatment to approximately 13.5 months (one year after the end of treatment)Late adverse events (AE) are defined as \> 180 days from end of treatment. "Treatment-related" means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE
Percentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 2 Years After the End of Study TreatmentFrom 180 days after end of treatment to two years after end of treatment.Late adverse events (AE) are defined as \> 180 days from end of treatment. "Treatment-related" means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE
Percentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 5 Years After the End of Study TreatmentFrom start of treatment to approximately 61.5 months (five years after the end of treatment)Late adverse events (AE) are defined as \> 180 days from end of treatment. "Treatment-related" means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE
Percentage of Participants With a Feeding Tube at 1 YearFrom randomization to 1 year.
EORTC QLQ-C30 Global Health Status Score Change From Baseline at End of TreatmentBaseline and end of treatment (6-7 weeks)The EORTC QLQ-C30 (European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30) Global Health Status score measures a cancer patient's perception of their overall health and well-being and ranges from 0 (worst) to 100 (best). A positive change from baseline indicates improvement.
EORTC QLQ-C30 Global Health Status Score Change From Baseline at 3 Months From End of TreatmentBaseline and 3 months from end of treatment. Treatment lasts 6-7 weeks.The EORTC QLQ-C30 Global Health Status score measures a cancer patient's perception of their overall health and well-being and ranges from 0 (worst) to 100 (best). A positive change from baseline indicates improvement.
EORTC QLQ-C30 Global Health Status Score Change From Baseline at 6 Months From End of TreatmentBaseline and 6 months from end of treatment. Treatment lasts 6-7 weeks.The EORTC QLQ-C30 Global Health Status score measures a cancer patient's perception of their overall health and well-being and ranges from 0 (worst) to 100 (best). A positive change from baseline indicates improvement.
EORTC QLQ-C30 Global Health Status Score Change From Baseline at 12 Months From End of TreatmentBaseline and 12 months from end of treatment. Treatment lasts 6-7 weeksThe EORTC QLQ-C30 Global Health Status score measures a cancer patient's perception of their overall health and well-being and ranges from 0 (worst) to 100 (best). A positive change from baseline indicates improvement.
EORTC QLQ-H&N35 Swallowing Score Change From Baseline at End of TreatmentBaseline and end of treatment (6-7 weeks)The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire - Head and Neck Cancer Module (EORTC QLQ-H\&N35) swallowing score measures patient-reported difficulty with swallowing various foods and liquid and ranges from 0 (no swallowing problems) to 100 (maximum swallowing difficulty). A positive change from baseline indicates worsening swallowing function.
EORTC QLQ-H&N35 Swallowing Score Change From Baseline at 3 Months From End of Treatment.Baseline and 3 months from end of treatment. Treatment lasts 6-7 weeks.The EORTC QLQ-H\&N35 swallowing score measures patient-reported difficulty with swallowing various foods and liquid and ranges from 0 (no swallowing problems) to 100 (maximum swallowing difficulty). A positive change from baseline indicates worsening swallowing function.
EORTC QLQ-H&N35 Swallowing Score Change From Baseline at 6 Months From End of Treatment.Baseline and 6 months from end of treatment. Treatment lasts 6-7 weeks.The EORTC QLQ-H\&N35 swallowing score measures patient-reported difficulty with swallowing various foods and liquid and ranges from 0 (no swallowing problems) to 100 (maximum swallowing difficulty). A positive change from baseline indicates worsening swallowing function.
EORTC QLQ-H&N35 Swallowing Score Change From Baseline at 12 Months From End of Treatment.Baseline and 12 months from end of treatment. Treatment lasts 6-7 weeks.The EORTC QLQ-H\&N35 swallowing score measures patient-reported difficulty with swallowing various foods and liquid and ranges from 0 (no swallowing problems) to 100 (maximum swallowing difficulty). A positive change from baseline indicates worsening swallowing function.
Number of Participants With Post-baseline Patient-Reported Outcomes Version of the Common Terminology Criteria for Adverse Events for Head and Neck (PRO-CTCAE H&N) Scores >= 3End of treatment (approximately 6 weeks after baseline); and 3, 6, and 12 months after end of treatment (approximately 4.5, 7.5, and 13.5 months after baseline).PRO-CTCAE is a patient-reported outcome (PRO) measurement system developed to evaluate symptomatic toxicity in patients on cancer clinical trials, asking the patient about experience over the last seven days. Scores may reflect worst severity of the symptom (0=None, 1=Mild, 2=Moderate, 3=Severe, and 4=Very severe), frequency of the symptom (0=Never, 1=Rarely, 2=Occasionally, 3=Frequently, 4=Almost constantly), or the symptom's interference with one's "usual or daily activities" (0=Not at all, 1=A little bit, 2=Somewhat, 3=Quite a bit, 4=Very much). The symptom row title will indicate "Severity", "Frequency", or "Interference". All scores are compared between arms; statistical analysis results are entered for p-values \< 0.05.
EuroQol Five Dimension Scale 3-level Version (EQ-5D-3L) Index Score Change From BaselineBasline, end of treatment (6-7 weeks), and 3, 6, and 12 months from end of treatment.The EQ-5D-3L index score measures health-related quality of life using five items (mobility, self-care, usual activities, pain/discomfort, and anxiety/depression), each with three levels of severity (1 = no problems, 2 = moderate problems, 3 = extreme problems). Responses across the five items are combined and transformed into a single utility (index) score. Possible scores range from 0 to 1, with higher scores indicating a better outcome. The change score was calculated as the postbaseline value minus the baseline value. A negative change reflects decline at the postbaseline timepoint and a positive change reflects improvement at the postbaseline timepoint.
EuroQol Five Dimension Scale 3-level Version (EQ-5D-3L) Visual Analogue Scale (VAS) Change From BaselineBasline, end of treatment (6-7 weeks), and 3, 6, and 12 months from end of treatment.The EQ-5D-3L VAS measures a patient's self-rated current health state using a visual analogue scale measured on a 20-cm scale with 10-point intervals. Scores range from 0 at the bottom of the scale, representing the worst imaginable health state, to 100 at the top of the scale, representing the best imaginable health state. The change score was calculated as the postbaseline value minus the baseline value. A negative change reflects decline at the postbaseline timepoint and a positive change reflects improvement at the postbaseline timepoint.
Number of Participants by Work Status Category at BaselineBaselineParticipants selected all current work status categories that applied. Therefore, category counts are not mutually exclusive and may sum to more than the number of participants analyzed.
Number of Participants by Work Status Category at End of TreatmentEnd of treatment (6-7 weeks)Participants selected all current work status categories that applied. Therefore, category counts are not mutually exclusive and may sum to more than the number of participants analyzed.
Number of Participants by Work Status Category at 3 Months After End of TreatmentThree months after end of treatment (6-7 weeks).Participants selected all current work status categories that applied. Therefore, category counts are not mutually exclusive and may sum to more than the number of participants analyzed.
Number of Participants by Work Status Category at 6 Months After End of TreatmentSix months after end of treatment (6-7 weeks).Participants selected all current work status categories that applied. Therefore, category counts are not mutually exclusive and may sum to more than the number of participants analyzed.
Number of Participants by Work Status Category at 12 Months After End of TreatmentTwelve months after end of treatment (6-7 weeks).Participants selected all current work status categories that applied. Therefore, category counts are not mutually exclusive and may sum to more than the number of participants analyzed.
Percentage of Patients With Normal/Good Dental Health: PretreatmentBefore treatmentThis study utilized a dental effects health scale from 0 (normal) to 4 (life-threatening dental condition). The percentage of participants with a value of 0 or 1 is reported: 0 = "Normal: Edentulous, with no gingival disease"; 1 = "Mild changes/good dental health: mild periodontal inflammation-routine cleaning indicated; \< 5 restorations indicated; no extractions indicated." Ten year data is not yet available.
Percentage of Patients With Normal/Good Dental Health: 1 Year After End of Treatment1 year after end of treatment (approximately 13.5 months)This study utilized a dental effects health scale from 0 (normal) to 4 (life-threatening dental condition). The percentage of participants with a value of 0 or 1 is reported: 0 = "Normal: Edentulous, with no gingival disease"; 1 = "Mild changes/good dental health: mild periodontal inflammation-routine cleaning indicated; \< 5 restorations indicated; no extractions indicated."
Percentage of Patients With Normal/Good Dental Health: 2 Years After End of Treatment2 years after end of treatment (approximately 25.5 months)This study utilized a dental effects health scale from 0 (normal) to 4 (life-threatening dental condition). The percentage of participants with a value of 0 or 1 is reported: 0 = "Normal: Edentulous, with no gingival disease"; 1 = "Mild changes/good dental health: mild periodontal inflammation-routine cleaning indicated; \< 5 restorations indicated; no extractions indicated."
Percentage of Patients With Normal/Good Dental Health: 5 Years After End of Treatment5 years after end of treatment (approximately 61.5 months)This study utilized a dental effects health scale from 0 (normal) to 4 (life-threatening dental condition). The percentage of participants with a value of 0 or 1 is reported: 0 = "Normal: Edentulous, with no gingival disease"; 1 = "Mild changes/good dental health: mild periodontal inflammation-routine cleaning indicated; \< 5 restorations indicated; no extractions indicated."
Percentage of Patients With Normal/Good Dental Health: 10 Years After End of Treatment10 years after end of treatment (approximately 121.5 months)This study utilized a dental effects health scale from 0 (normal) to 4 (life-threatening dental condition). The percentage of participants with a value of 0 or 1 is reported: 0 = "Normal: Edentulous, with no gingival disease"; 1 = "Mild changes/good dental health: mild periodontal inflammation-routine cleaning indicated; \< 5 restorations indicated; no extractions indicated."
Number of Participants by HHIA-S Category at BaselineBaselineThe Hearing Handicap Inventory for Adults Screen Version (HHIA-S) measures a person's perceived hearing handicap. Total score ranges from 0 to 40, with a higher score indicating more severe perceived hearing handicap, categorized as follows: * No handicap: 0-8. * Mild-moderate handicap: 10-24. * Severe handicap: 26-40.
Number of Participants by HHIA-S Category at End of TreatmentEnd of treatment (6-7 weeks)The Hearing Handicap Inventory for Adults Screen Version (HHIA-S) measures a person's perceived hearing handicap. Total score ranges from 0 to 40, with a higher score indicating more severe perceived hearing handicap, categorized as follows: * No handicap: 0-8. * Mild-moderate handicap: 10-24. * Severe handicap: 26-40.
Number of Participants by HHIA-S Category at 3 Months After End of Treatment3 months after end of treatment. Treatment lasts 6-7 weeks.The HHIA-S measures a person's perceived hearing handicap. Total score ranges from 0 to 40, with a higher score indicating more severe perceived hearing handicap, categorized as follows: * No handicap: 0-8. * Mild-moderate handicap: 10-24. * Severe handicap: 26-40.
Number of Participants by HHIA-S Category at 6 Months After End of Treatment6 months after end of treatment. Treatment lasts 6-7 weeks.The HHIA-S measures a person's perceived hearing handicap. Total score ranges from 0 to 40, with a higher score indicating more severe perceived hearing handicap, categorized as follows: * No handicap: 0-8. * Mild-moderate handicap: 10-24. * Severe handicap: 26-40.
Number of Participants by HHIA-S Category at 12 Months After End of Treatment12 months after end of treatment. Treatment lasts 6-7 weeks.The HHIA-S measures a person's perceived hearing handicap. Total score ranges from 0 to 40, with a higher score indicating more severe perceived hearing handicap, categorized as follows: * No handicap: 0-8. * Mild-moderate handicap: 10-24. * Severe handicap: 26-40.
Overall Survival by KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) Variant StatusFrom randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 214 deaths were reported. Median follow-up at time of analysis was 8.3 years.KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) is a gene that helps control how cells grow. Some people have a change in this gene, which can be detected (variant/non-variant) by a genetic test performed on tissue from their tumor. Research suggests that this change may influence how head and neck cancer responds to certain treatments. An event for overall survival is death due to any cause. Survival time is defined as time from randomization to the date of death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is hazard ratio, which is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.
Progression-free Survival by KRAS Variant StatusFrom randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 214 deaths were reported. Median follow-up at time of analysis was 8.3 years.KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) is a gene that helps control how cells grow. Some people have a change in this gene, which can be detected (variant/non-variant) by a genetic test performed on tissue from their tumor. Research suggests that this change may influence how head and neck cancer responds to certain treatments. An event for progression-free survival is local, regional, or distant disease progression or death due to any cause. Progression-free survival time is defined as time from randomization to the date of progression/death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is the distribution of progression-free survival times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.
Overall Survival by Treatment Arm Within KRAS Variant Status GroupFrom randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 214 deaths were reported. Median follow-up at time of analysis was 8.3 years.KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) is a gene that helps control how cells grow. Some people have a change in this gene, which can be detected (variant/non-variant) by a genetic test performed on tissue from their tumor. Research suggests that this change may influence how head and neck cancer responds to certain treatments. An event for overall survival is death due to any cause. Survival time is defined as time from randomization to the date of death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is hazard ratio, which is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.
Progression-free Survival Within KRAS Variant StatusFrom randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 214 deaths were reported. Median follow-up at time of analysis was 8.3 years.KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) is a gene that helps control how cells grow. Some people have a change in this gene, which can be detected (variant/non-variant) by a genetic test performed on tissue from their tumor. Research suggests that this change may influence how head and neck cancer responds to certain treatments. An event for progression-free survival is local, regional, or distant disease progression or death due to any cause. Progression-free survival time is defined as time from randomization to the date of progression/death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is the distribution of progression-free survival times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Countries

Canada, United States

Contacts

PRINCIPAL_INVESTIGATORAndy M. Trotti, MD

H. Lee Moffitt Cancer Center and Research Institute

PRINCIPAL_INVESTIGATORMaura Gillison, MD, PhD

Ohio State University

Participant flow

Pre-assignment details

Sites were required to submit participant tumor tissue for central p16 evaluation within one week of registration. If participants were determined to be p16-positive and continued on the study, then treatment arm was assigned. Of 987 participants registered, 849 were randomized.

Participants by arm

ArmCount
IMRT + Cisplatin
Intensity-modulated radiotherapy (IMRT) with concurrent cisplatin Cisplatin: 100 mg/m2 IV on days 1 and 22 of IMRT IMRT: 35 fractions over 6 weeks, 6 fractions per week, 2 Gray per fraction to total dose of 70 Gy.
406
IMRT + Cetuximab
Intensity-modulated radiotherapy (IMRT) with concurrent cetuximab Cetuximab: 400 mg/m2 IV 5-7 days before IMRT then 250 mg/m2 IV weekly for 7 weeks IMRT: 35 fractions over 6 weeks, 6 fractions per week, 2 Gray per fraction to total dose of 70 Gy.
399
Total805

Baseline characteristics

CharacteristicIMRT + CisplatinTotalIMRT + Cetuximab
Age, Continuous58 years58 years58 years
Age, Customized
<= 65
344 Participants689 Participants345 Participants
Age, Customized
> 65
62 Participants116 Participants54 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
11 Participants26 Participants15 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
383 Participants752 Participants369 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
12 Participants27 Participants15 Participants
Node category
N0
20 Participants34 Participants14 Participants
Node category
N1
20 Participants45 Participants25 Participants
Node category
N2a
59 Participants115 Participants56 Participants
Node category
N2b
209 Participants417 Participants208 Participants
Node category
N2c
82 Participants165 Participants83 Participants
Node category
N3
16 Participants29 Participants13 Participants
Overall stage
III
29 Participants60 Participants31 Participants
Overall stage
IV
377 Participants745 Participants368 Participants
Primary site
Base of tongue
174 Participants353 Participants179 Participants
Primary site
Oropharynx, not otherwise specified
16 Participants31 Participants15 Participants
Primary site
Pharyngeal oropharynx
8 Participants13 Participants5 Participants
Primary site
Soft palate
4 Participants4 Participants0 Participants
Primary site
Tonsillar fossa, tonsil
202 Participants401 Participants199 Participants
Primary site
Vallecula
2 Participants3 Participants1 Participants
Race/Ethnicity, Customized
Black
17 Participants36 Participants19 Participants
Race/Ethnicity, Customized
Other
2 Participants10 Participants8 Participants
Race/Ethnicity, Customized
Unknown
7 Participants12 Participants5 Participants
Race/Ethnicity, Customized
White
380 Participants747 Participants367 Participants
Risk group per study RTOG-0129
Intermediate risk
117 Participants232 Participants115 Participants
Risk group per study RTOG-0129
Low risk
289 Participants573 Participants284 Participants
Sex: Female, Male
Female
33 Participants77 Participants44 Participants
Sex: Female, Male
Male
373 Participants728 Participants355 Participants
Smoking history
0 pack-years
194 Participants375 Participants181 Participants
Smoking history
>0 to <= 10 pack-years
59 Participants127 Participants68 Participants
Smoking history
>10 pack-years
153 Participants303 Participants150 Participants
Smoking history2 pack-years2 pack-years3 pack-years
Tumor stage
T1
89 Participants175 Participants86 Participants
Tumor stage
T2
162 Participants325 Participants163 Participants
Tumor stage
T3
108 Participants208 Participants100 Participants
Tumor stage
T4
47 Participants97 Participants50 Participants
Zubrod performance status
0
295 Participants595 Participants300 Participants
Zubrod performance status
1
111 Participants210 Participants99 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
64 / 40686 / 399
other
Total, other adverse events
398 / 398393 / 394
serious
Total, serious adverse events
177 / 398115 / 394

Outcome results

Primary

Overall Survival

An event for overall survival is death due to any cause. Survival time is defined as time from randomization to the date of death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is hazard ratio, which is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.

Population: Eligible participants

ArmMeasureValue (NUMBER)
IMRT + CisplatinOverall Survival84.6 percentage of participants
IMRT + CetuximabOverall Survival77.9 percentage of participants
Secondary

Distribution of First Progression Events

The first event type for progression-free survival is counted for each participant. Possible first progression events are local, regional, or distant progression, any combination of these, or death. The frequency table of these events is also referred to as Pattern of failure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.

Population: Eligible participants with progression-free survival failure

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
IMRT + CisplatinDistribution of First Progression EventsLocal and distant0 Participants
IMRT + CisplatinDistribution of First Progression EventsDistant31 Participants
IMRT + CisplatinDistribution of First Progression EventsLocal and regional4 Participants
IMRT + CisplatinDistribution of First Progression EventsDeath, due to this disease2 Participants
IMRT + CisplatinDistribution of First Progression EventsRegional and distant0 Participants
IMRT + CisplatinDistribution of First Progression EventsDeath, due to second primary1 Participants
IMRT + CisplatinDistribution of First Progression EventsRegional6 Participants
IMRT + CisplatinDistribution of First Progression EventsDeath, due to other reason10 Participants
IMRT + CisplatinDistribution of First Progression EventsLocal, regional, and distant0 Participants
IMRT + CisplatinDistribution of First Progression EventsDeath, due to unknown reason9 Participants
IMRT + CisplatinDistribution of First Progression EventsLocal13 Participants
IMRT + CetuximabDistribution of First Progression EventsDeath, due to unknown reason10 Participants
IMRT + CetuximabDistribution of First Progression EventsLocal25 Participants
IMRT + CetuximabDistribution of First Progression EventsRegional14 Participants
IMRT + CetuximabDistribution of First Progression EventsLocal and regional8 Participants
IMRT + CetuximabDistribution of First Progression EventsLocal and distant1 Participants
IMRT + CetuximabDistribution of First Progression EventsRegional and distant5 Participants
IMRT + CetuximabDistribution of First Progression EventsLocal, regional, and distant2 Participants
IMRT + CetuximabDistribution of First Progression EventsDistant43 Participants
IMRT + CetuximabDistribution of First Progression EventsDeath, due to this disease0 Participants
IMRT + CetuximabDistribution of First Progression EventsDeath, due to second primary3 Participants
IMRT + CetuximabDistribution of First Progression EventsDeath, due to other reason11 Participants
Secondary

EORTC QLQ-C30 Global Health Status Score Change From Baseline at 12 Months From End of Treatment

The EORTC QLQ-C30 Global Health Status score measures a cancer patient's perception of their overall health and well-being and ranges from 0 (worst) to 100 (best). A positive change from baseline indicates improvement.

Time frame: Baseline and 12 months from end of treatment. Treatment lasts 6-7 weeks

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureValue (MEAN)Dispersion
IMRT + CisplatinEORTC QLQ-C30 Global Health Status Score Change From Baseline at 12 Months From End of Treatment3.15 score on a scaleStandard Deviation 23.42
IMRT + CetuximabEORTC QLQ-C30 Global Health Status Score Change From Baseline at 12 Months From End of Treatment2.59 score on a scaleStandard Deviation 21.09
Secondary

EORTC QLQ-C30 Global Health Status Score Change From Baseline at 3 Months From End of Treatment

The EORTC QLQ-C30 Global Health Status score measures a cancer patient's perception of their overall health and well-being and ranges from 0 (worst) to 100 (best). A positive change from baseline indicates improvement.

Time frame: Baseline and 3 months from end of treatment. Treatment lasts 6-7 weeks.

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureValue (MEAN)Dispersion
IMRT + CisplatinEORTC QLQ-C30 Global Health Status Score Change From Baseline at 3 Months From End of Treatment-4.42 score on a scaleStandard Deviation 25.92
IMRT + CetuximabEORTC QLQ-C30 Global Health Status Score Change From Baseline at 3 Months From End of Treatment-7.51 score on a scaleStandard Deviation 22.46
Secondary

EORTC QLQ-C30 Global Health Status Score Change From Baseline at 6 Months From End of Treatment

The EORTC QLQ-C30 Global Health Status score measures a cancer patient's perception of their overall health and well-being and ranges from 0 (worst) to 100 (best). A positive change from baseline indicates improvement.

Time frame: Baseline and 6 months from end of treatment. Treatment lasts 6-7 weeks.

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureValue (MEAN)Dispersion
IMRT + CisplatinEORTC QLQ-C30 Global Health Status Score Change From Baseline at 6 Months From End of Treatment-0.57 score on a scaleStandard Deviation 25.01
IMRT + CetuximabEORTC QLQ-C30 Global Health Status Score Change From Baseline at 6 Months From End of Treatment-0.90 score on a scaleStandard Deviation 23.35
p-value: 0.5438t-test, 1 sided
Secondary

EORTC QLQ-C30 Global Health Status Score Change From Baseline at End of Treatment

The EORTC QLQ-C30 (European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30) Global Health Status score measures a cancer patient's perception of their overall health and well-being and ranges from 0 (worst) to 100 (best). A positive change from baseline indicates improvement.

Time frame: Baseline and end of treatment (6-7 weeks)

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureValue (MEAN)Dispersion
IMRT + CisplatinEORTC QLQ-C30 Global Health Status Score Change From Baseline at End of Treatment-23.16 score on a scaleStandard Deviation 28.16
IMRT + CetuximabEORTC QLQ-C30 Global Health Status Score Change From Baseline at End of Treatment-25.31 score on a scaleStandard Deviation 22.92
Secondary

EORTC QLQ-H&N35 Swallowing Score Change From Baseline at 12 Months From End of Treatment.

The EORTC QLQ-H&N35 swallowing score measures patient-reported difficulty with swallowing various foods and liquid and ranges from 0 (no swallowing problems) to 100 (maximum swallowing difficulty). A positive change from baseline indicates worsening swallowing function.

Time frame: Baseline and 12 months from end of treatment. Treatment lasts 6-7 weeks.

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureValue (MEAN)Dispersion
IMRT + CisplatinEORTC QLQ-H&N35 Swallowing Score Change From Baseline at 12 Months From End of Treatment.2.52 score on a scaleStandard Deviation 19.64
IMRT + CetuximabEORTC QLQ-H&N35 Swallowing Score Change From Baseline at 12 Months From End of Treatment.7.61 score on a scaleStandard Deviation 17.81
Secondary

EORTC QLQ-H&N35 Swallowing Score Change From Baseline at 3 Months From End of Treatment.

The EORTC QLQ-H&N35 swallowing score measures patient-reported difficulty with swallowing various foods and liquid and ranges from 0 (no swallowing problems) to 100 (maximum swallowing difficulty). A positive change from baseline indicates worsening swallowing function.

Time frame: Baseline and 3 months from end of treatment. Treatment lasts 6-7 weeks.

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureValue (MEAN)Dispersion
IMRT + CisplatinEORTC QLQ-H&N35 Swallowing Score Change From Baseline at 3 Months From End of Treatment.10.58 score on a scaleStandard Deviation 26.49
IMRT + CetuximabEORTC QLQ-H&N35 Swallowing Score Change From Baseline at 3 Months From End of Treatment.14.20 score on a scaleStandard Deviation 20.61
Secondary

EORTC QLQ-H&N35 Swallowing Score Change From Baseline at 6 Months From End of Treatment.

The EORTC QLQ-H&N35 swallowing score measures patient-reported difficulty with swallowing various foods and liquid and ranges from 0 (no swallowing problems) to 100 (maximum swallowing difficulty). A positive change from baseline indicates worsening swallowing function.

Time frame: Baseline and 6 months from end of treatment. Treatment lasts 6-7 weeks.

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureValue (MEAN)Dispersion
IMRT + CisplatinEORTC QLQ-H&N35 Swallowing Score Change From Baseline at 6 Months From End of Treatment.8.65 score on a scaleStandard Deviation 23.94
IMRT + CetuximabEORTC QLQ-H&N35 Swallowing Score Change From Baseline at 6 Months From End of Treatment.10.13 score on a scaleStandard Deviation 18.73
p-value: 0.7108t-test, 1 sided
Secondary

EORTC QLQ-H&N35 Swallowing Score Change From Baseline at End of Treatment

The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire - Head and Neck Cancer Module (EORTC QLQ-H&N35) swallowing score measures patient-reported difficulty with swallowing various foods and liquid and ranges from 0 (no swallowing problems) to 100 (maximum swallowing difficulty). A positive change from baseline indicates worsening swallowing function.

Time frame: Baseline and end of treatment (6-7 weeks)

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureValue (MEAN)Dispersion
IMRT + CisplatinEORTC QLQ-H&N35 Swallowing Score Change From Baseline at End of Treatment47.99 score on a scaleStandard Deviation 27.99
IMRT + CetuximabEORTC QLQ-H&N35 Swallowing Score Change From Baseline at End of Treatment47.43 score on a scaleStandard Deviation 24.52
Secondary

EuroQol Five Dimension Scale (EQ-5D) at Baseline, End of Treatment, 3, 6, and 12 Months From End of Treatment.

Time frame: From randomization to 1 year after end of treatment.

Secondary

Number of Participants by HHIA-S Category at 12 Months After End of Treatment

The HHIA-S measures a person's perceived hearing handicap. Total score ranges from 0 to 40, with a higher score indicating more severe perceived hearing handicap, categorized as follows: * No handicap: 0-8. * Mild-moderate handicap: 10-24. * Severe handicap: 26-40.

Time frame: 12 months after end of treatment. Treatment lasts 6-7 weeks.

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
IMRT + CisplatinNumber of Participants by HHIA-S Category at 12 Months After End of TreatmentNo handicap84 Participants
IMRT + CisplatinNumber of Participants by HHIA-S Category at 12 Months After End of TreatmentMild-moderate handicap27 Participants
IMRT + CisplatinNumber of Participants by HHIA-S Category at 12 Months After End of TreatmentSevere handicap10 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at 12 Months After End of TreatmentNo handicap103 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at 12 Months After End of TreatmentMild-moderate handicap17 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at 12 Months After End of TreatmentSevere handicap5 Participants
Secondary

Number of Participants by HHIA-S Category at 3 Months After End of Treatment

The HHIA-S measures a person's perceived hearing handicap. Total score ranges from 0 to 40, with a higher score indicating more severe perceived hearing handicap, categorized as follows: * No handicap: 0-8. * Mild-moderate handicap: 10-24. * Severe handicap: 26-40.

Time frame: 3 months after end of treatment. Treatment lasts 6-7 weeks.

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
IMRT + CisplatinNumber of Participants by HHIA-S Category at 3 Months After End of TreatmentNo handicap93 Participants
IMRT + CisplatinNumber of Participants by HHIA-S Category at 3 Months After End of TreatmentMild-moderate handicap28 Participants
IMRT + CisplatinNumber of Participants by HHIA-S Category at 3 Months After End of TreatmentSevere handicap15 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at 3 Months After End of TreatmentNo handicap109 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at 3 Months After End of TreatmentMild-moderate handicap21 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at 3 Months After End of TreatmentSevere handicap7 Participants
Secondary

Number of Participants by HHIA-S Category at 6 Months After End of Treatment

The HHIA-S measures a person's perceived hearing handicap. Total score ranges from 0 to 40, with a higher score indicating more severe perceived hearing handicap, categorized as follows: * No handicap: 0-8. * Mild-moderate handicap: 10-24. * Severe handicap: 26-40.

Time frame: 6 months after end of treatment. Treatment lasts 6-7 weeks.

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
IMRT + CisplatinNumber of Participants by HHIA-S Category at 6 Months After End of TreatmentNo handicap95 Participants
IMRT + CisplatinNumber of Participants by HHIA-S Category at 6 Months After End of TreatmentMild-moderate handicap31 Participants
IMRT + CisplatinNumber of Participants by HHIA-S Category at 6 Months After End of TreatmentSevere handicap14 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at 6 Months After End of TreatmentNo handicap106 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at 6 Months After End of TreatmentMild-moderate handicap21 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at 6 Months After End of TreatmentSevere handicap4 Participants
Secondary

Number of Participants by HHIA-S Category at Baseline

The Hearing Handicap Inventory for Adults Screen Version (HHIA-S) measures a person's perceived hearing handicap. Total score ranges from 0 to 40, with a higher score indicating more severe perceived hearing handicap, categorized as follows: * No handicap: 0-8. * Mild-moderate handicap: 10-24. * Severe handicap: 26-40.

Time frame: Baseline

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
IMRT + CisplatinNumber of Participants by HHIA-S Category at BaselineNo handicap150 Participants
IMRT + CisplatinNumber of Participants by HHIA-S Category at BaselineMild-moderate handicap23 Participants
IMRT + CisplatinNumber of Participants by HHIA-S Category at BaselineSevere handicap2 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at BaselineNo handicap132 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at BaselineMild-moderate handicap32 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at BaselineSevere handicap7 Participants
Secondary

Number of Participants by HHIA-S Category at End of Treatment

The Hearing Handicap Inventory for Adults Screen Version (HHIA-S) measures a person's perceived hearing handicap. Total score ranges from 0 to 40, with a higher score indicating more severe perceived hearing handicap, categorized as follows: * No handicap: 0-8. * Mild-moderate handicap: 10-24. * Severe handicap: 26-40.

Time frame: End of treatment (6-7 weeks)

Population: Eligible participants enrolled to the quality of life (QOL) substudy who received protocol treatment and had outcome measure data.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
IMRT + CisplatinNumber of Participants by HHIA-S Category at End of TreatmentNo handicap91 Participants
IMRT + CisplatinNumber of Participants by HHIA-S Category at End of TreatmentMild-moderate handicap29 Participants
IMRT + CisplatinNumber of Participants by HHIA-S Category at End of TreatmentSevere handicap14 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at End of TreatmentNo handicap107 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at End of TreatmentMild-moderate handicap21 Participants
IMRT + CetuximabNumber of Participants by HHIA-S Category at End of TreatmentSevere handicap5 Participants
Secondary

Overall Survival by KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) Variant Status

KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) is a gene that helps control how cells grow. Some people have a change in this gene, which can be detected (variant/non-variant) by a genetic test performed on tissue from their tumor. Research suggests that this change may influence how head and neck cancer responds to certain treatments. An event for overall survival is death due to any cause. Survival time is defined as time from randomization to the date of death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is hazard ratio, which is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 214 deaths were reported. Median follow-up at time of analysis was 8.3 years.

Population: Eligible participants with KRAS data

ArmMeasureValue (NUMBER)
IMRT + CisplatinOverall Survival by KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) Variant Status80.6 percentage of participants
IMRT + CetuximabOverall Survival by KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) Variant Status79.2 percentage of participants
p-value: 0.257195% CI: [0.56, 1.34]Regression, Cox
Secondary

Overall Survival by Treatment Arm Within KRAS Variant Status Group

KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) is a gene that helps control how cells grow. Some people have a change in this gene, which can be detected (variant/non-variant) by a genetic test performed on tissue from their tumor. Research suggests that this change may influence how head and neck cancer responds to certain treatments. An event for overall survival is death due to any cause. Survival time is defined as time from randomization to the date of death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is hazard ratio, which is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 214 deaths were reported. Median follow-up at time of analysis was 8.3 years.

Population: Eligible participants with KRAS data

ArmMeasureGroupValue (NUMBER)
IMRT + CisplatinOverall Survival by Treatment Arm Within KRAS Variant Status GroupVariant83.3 percentage of participants
IMRT + CisplatinOverall Survival by Treatment Arm Within KRAS Variant Status GroupNon-variant80.8 percentage of participants
IMRT + CetuximabOverall Survival by Treatment Arm Within KRAS Variant Status GroupNon-variant77.6 percentage of participants
IMRT + CetuximabOverall Survival by Treatment Arm Within KRAS Variant Status GroupVariant78.4 percentage of participants
Comparison: Variant95% CI: [0.49, 2.46]
Comparison: Non-variant95% CI: [0.79, 1.53]
Comparison: Testing Cox proportional hazards model interaction term for KRAS variant status and treatment arm.p-value: 0.989Regression, Cox
Secondary

Patient-Reported Outcomes Version of the Common Terminology Criteria for Adverse Events for Head and Neck (PRO-CTCAE H&N) at Baseline, End of Treatment, 3, 6, and 12 Months From End of Treatment.

Time frame: From randomization to 1 year after end of treatment.

Secondary

Percentage of Participants Experiencing Early Death

Early death is defined as death due to adverse event or within 30 days of treatment completion.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.

Population: Eligible patients who started study treatment

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Participants Experiencing Early Death1.5 percentage of participants
IMRT + CetuximabPercentage of Participants Experiencing Early Death1.5 percentage of participants
p-value: 1Fisher Exact
Secondary

Percentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 1 Month After End of Study Treatment

Acute adverse events (AE) are defined as occurring within 180 days from the end of treatment. Treatment-related means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE

Time frame: From start of treatment to approximately 2.5 months (1 month after the end of treatment)

Population: Eligible patients who started study treatment and had adverse events assessment at 1 month after treatment end

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 1 Month After End of Study Treatment32.5 percentage of participants
IMRT + CetuximabPercentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 1 Month After End of Study Treatment31.1 percentage of participants
Secondary

Percentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 3 Months After the End of Study Treatment

Acute adverse events (AE) are defined as occurring within 180 days from the end of treatment. Treatment-related means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE

Time frame: From start of treatment to approximately 4.5 months (3 months after the end of treatment)

Population: Eligible patients who started study treatment and had adverse events assessment at 3 months after treatment end

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 3 Months After the End of Study Treatment17.5 percentage of participants
IMRT + CetuximabPercentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 3 Months After the End of Study Treatment14.7 percentage of participants
Secondary

Percentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 6 Months After the End of Study Treatment

Acute adverse events (AE) are defined as occurring within 180 days from the end of treatment. Treatment-related means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE

Time frame: From start of treatment to approximately 7.5 months (6 months after the end of treatment)

Population: Eligible patients who started study treatment and had adverse events assessment at 6 months year after treatment end

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 6 Months After the End of Study Treatment13.3 percentage of participants
IMRT + CetuximabPercentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: 6 Months After the End of Study Treatment9.4 percentage of participants
Secondary

Percentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: During Treatment

Acute adverse events (AE) are defined as occurring within 180 days from the end of treatment. Treatment-related means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE

Time frame: From start of treatment to end of treatment, approximately 6 weeks

Population: All eligible patients who started study treatment

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: During Treatment75.6 percentage of participants
IMRT + CetuximabPercentage of Participants With Acute Grade 3-4 Treatment-related Adverse Events: During Treatment73.6 percentage of participants
Secondary

Percentage of Participants With a Feeding Tube at 1 Year

Time frame: From randomization to 1 year.

Population: Eligible patients who started study treatment and had feeding tube assessment at 1 year

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Participants With a Feeding Tube at 1 Year9.2 percentage of participants
IMRT + CetuximabPercentage of Participants With a Feeding Tube at 1 Year8.4 percentage of participants
p-value: 0.79Fisher Exact
Secondary

Percentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 1 Year After the End of Study Treatment

Late adverse events (AE) are defined as \> 180 days from end of treatment. Treatment-related means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE

Time frame: From start of treatment to approximately 13.5 months (one year after the end of treatment)

Population: Eligible patients who started study treatment and had adverse events assessment at 1 year after treatment end

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 1 Year After the End of Study Treatment10.0 percentage of participants
IMRT + CetuximabPercentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 1 Year After the End of Study Treatment8.5 percentage of participants
Secondary

Percentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 2 Years After the End of Study Treatment

Late adverse events (AE) are defined as \> 180 days from end of treatment. Treatment-related means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE

Time frame: From 180 days after end of treatment to two years after end of treatment.

Population: .Eligible patients who started study treatment and had adverse events assessment at 2 years after treatment end

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 2 Years After the End of Study Treatment7.7 percentage of participants
IMRT + CetuximabPercentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 2 Years After the End of Study Treatment4.0 percentage of participants
Secondary

Percentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 5 Years After the End of Study Treatment

Late adverse events (AE) are defined as \> 180 days from end of treatment. Treatment-related means reported as definitely, probably, or possibly related to protocol treatment. AE were graded using the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild, Grade 2 Moderate, Grade 3 Severe, Grade 4 Life-threatening or disabling, Grade 5 Death related to AE

Time frame: From start of treatment to approximately 61.5 months (five years after the end of treatment)

Population: Eligible patients who started study treatment and had adverse events assessment at 5 years after treatment end

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 5 Years After the End of Study Treatment4.3 percentage of participants
IMRT + CetuximabPercentage of Participants With Late Grade 3-4 Treatment-related Adverse Events: 5 Years After the End of Study Treatment7.0 percentage of participants
Secondary

Percentage of Patients With Normal/Good Dental Health: 10 Years After End of Treatment

This study utilized a dental effects health scale from 0 (normal) to 4 (life-threatening dental condition). The percentage of participants with a value of 0 or 1 is reported: 0 = Normal: Edentulous, with no gingival disease; 1 = Mild changes/good dental health: mild periodontal inflammation-routine cleaning indicated; \< 5 restorations indicated; no extractions indicated.

Time frame: 10 years after end of treatment (approximately 121.5 months)

Population: Eligible patients who started study treatment and had dental status assessment at 10 years after treatment end

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Patients With Normal/Good Dental Health: 10 Years After End of Treatment91.2 Percentage of participants
IMRT + CetuximabPercentage of Patients With Normal/Good Dental Health: 10 Years After End of Treatment84.0 Percentage of participants
Secondary

Percentage of Patients With Normal/Good Dental Health: 1 Year After End of Treatment

This study utilized a dental effects health scale from 0 (normal) to 4 (life-threatening dental condition). The percentage of participants with a value of 0 or 1 is reported: 0 = Normal: Edentulous, with no gingival disease; 1 = Mild changes/good dental health: mild periodontal inflammation-routine cleaning indicated; \< 5 restorations indicated; no extractions indicated.

Time frame: 1 year after end of treatment (approximately 13.5 months)

Population: Eligible patients who started study treatment and had dental status assessment at 1 year after treatment end

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Patients With Normal/Good Dental Health: 1 Year After End of Treatment87.3 percentage of participants
IMRT + CetuximabPercentage of Patients With Normal/Good Dental Health: 1 Year After End of Treatment83.5 percentage of participants
Secondary

Percentage of Patients With Normal/Good Dental Health: 2 Years After End of Treatment

This study utilized a dental effects health scale from 0 (normal) to 4 (life-threatening dental condition). The percentage of participants with a value of 0 or 1 is reported: 0 = Normal: Edentulous, with no gingival disease; 1 = Mild changes/good dental health: mild periodontal inflammation-routine cleaning indicated; \< 5 restorations indicated; no extractions indicated.

Time frame: 2 years after end of treatment (approximately 25.5 months)

Population: Eligible patients who started study treatment and had dental status assessment at 2 years after treatment end

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Patients With Normal/Good Dental Health: 2 Years After End of Treatment86.5 percentage of participants
IMRT + CetuximabPercentage of Patients With Normal/Good Dental Health: 2 Years After End of Treatment82.1 percentage of participants
Secondary

Percentage of Patients With Normal/Good Dental Health: 5 Years After End of Treatment

This study utilized a dental effects health scale from 0 (normal) to 4 (life-threatening dental condition). The percentage of participants with a value of 0 or 1 is reported: 0 = Normal: Edentulous, with no gingival disease; 1 = Mild changes/good dental health: mild periodontal inflammation-routine cleaning indicated; \< 5 restorations indicated; no extractions indicated.

Time frame: 5 years after end of treatment (approximately 61.5 months)

Population: Eligible patients who started study treatment and had dental status assessment at 5 years after treatment end

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Patients With Normal/Good Dental Health: 5 Years After End of Treatment88.6 percentage of participants
IMRT + CetuximabPercentage of Patients With Normal/Good Dental Health: 5 Years After End of Treatment86.0 percentage of participants
Secondary

Percentage of Patients With Normal/Good Dental Health: Pretreatment

This study utilized a dental effects health scale from 0 (normal) to 4 (life-threatening dental condition). The percentage of participants with a value of 0 or 1 is reported: 0 = Normal: Edentulous, with no gingival disease; 1 = Mild changes/good dental health: mild periodontal inflammation-routine cleaning indicated; \< 5 restorations indicated; no extractions indicated. Ten year data is not yet available.

Time frame: Before treatment

Population: Eligible patients who started study treatment

ArmMeasureValue (NUMBER)
IMRT + CisplatinPercentage of Patients With Normal/Good Dental Health: Pretreatment71.1 percentage of participants
IMRT + CetuximabPercentage of Patients With Normal/Good Dental Health: Pretreatment74.6 percentage of participants
Secondary

Progression-free Survival

An event for progression-free survival is local, regional, or distant disease progression or death due to any cause. Progression-free survival time is defined as time from randomization to the date of progression/death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is the distribution of progression-free survival times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.

Population: Eligible participants

ArmMeasureValue (NUMBER)
IMRT + CisplatinProgression-free Survival78.4 percentage of participants
IMRT + CetuximabProgression-free Survival67.3 percentage of participants
p-value: 0.000295% CI: [1.29, 2.29]Log Rank
Secondary

Progression-free Survival by KRAS Variant Status

KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) is a gene that helps control how cells grow. Some people have a change in this gene, which can be detected (variant/non-variant) by a genetic test performed on tissue from their tumor. Research suggests that this change may influence how head and neck cancer responds to certain treatments. An event for progression-free survival is local, regional, or distant disease progression or death due to any cause. Progression-free survival time is defined as time from randomization to the date of progression/death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is the distribution of progression-free survival times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 214 deaths were reported. Median follow-up at time of analysis was 8.3 years.

Population: Eligible participants with KRAS data

ArmMeasureValue (NUMBER)
IMRT + CisplatinProgression-free Survival by KRAS Variant Status72.0 percentage of participants
IMRT + CetuximabProgression-free Survival by KRAS Variant Status71.5 percentage of participants
p-value: 0.370495% CI: [0.64, 1.38]Regression, Cox
Secondary

Progression-free Survival Within KRAS Variant Status

KRAS (Kirsten Rat Sarcoma Viral Oncogene Homolog) is a gene that helps control how cells grow. Some people have a change in this gene, which can be detected (variant/non-variant) by a genetic test performed on tissue from their tumor. Research suggests that this change may influence how head and neck cancer responds to certain treatments. An event for progression-free survival is local, regional, or distant disease progression or death due to any cause. Progression-free survival time is defined as time from randomization to the date of progression/death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is the distribution of progression-free survival times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 214 deaths were reported. Median follow-up at time of analysis was 8.3 years.

Population: Eligible participants with KRAS data

ArmMeasureGroupValue (NUMBER)
IMRT + CisplatinProgression-free Survival Within KRAS Variant StatusNon-variant75.1 percentage of participants
IMRT + CisplatinProgression-free Survival Within KRAS Variant StatusVariant76.6 percentage of participants
IMRT + CetuximabProgression-free Survival Within KRAS Variant StatusVariant67.7 percentage of participants
IMRT + CetuximabProgression-free Survival Within KRAS Variant StatusNon-variant68.0 percentage of participants
Comparison: Variant95% CI: [0.5, 2.04]
Comparison: Non-variant95% CI: [0.94, 1.73]
Comparison: Testing Cox proportional hazards model interaction term for KRAS variant status and treatment arm.p-value: 0.5556Regression, Cox
Secondary

Time to Distant Metastasis

Failure for distant metastasis endpoint was defined as distant progression; local-regional failure and death due to any cause were considered competing risks. Distant metastasis time is defined as time from randomization to the date of progression/death or last known follow-up (censored). Rates are estimated by the cumulative incidence method. The protocol endpoint is the distribution of distant metastasis times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.

Population: Eligible participants

ArmMeasureValue (NUMBER)
IMRT + CisplatinTime to Distant Metastasis8.6 percentage of participants
IMRT + CetuximabTime to Distant Metastasis11.7 percentage of participants
p-value: 0.0995% CI: [0.94, 2.36]Log Rank
Secondary

Time to Local-regional Failure

Failure for local-regional failure endpoint was defined as local or regional progression, salvage surgery of the primary tumor with tumor present/unknown, salvage neck dissection with tumor present/unknown \> 20 weeks after the end of radiation therapy, death due to study cancer without documented progression, or death due to unknown causes without documented progression; distant metastasis and death due to other causes were considered competing risks. Local-regional failure time is defined as time from randomization to the date of progression/death or last known follow-up (censored). Rates are estimated by the cumulative incidence method. The protocol endpoint is the distribution of local-regional failure times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.

Population: Eligible participants

ArmMeasureValue (NUMBER)
IMRT + CisplatinTime to Local-regional Failure9.9 percentage of participants
IMRT + CetuximabTime to Local-regional Failure17.3 percentage of participants
p-value: 0.000595% CI: [1.35, 3.1]Log Rank
Secondary

Time to Secondary Primary Cancer

Failure for second primary endpoint was defined as reporting of a new primary cancer; death due to any cause was considered a competing risk. Second primary time is defined as time from randomization to the date of second primary or last known follow-up (censored). Rates are estimated by the cumulative incidence method. The protocol endpoint is the distribution of second primary cancer times, for which the hazard ratio is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.

Population: Eligible participants

ArmMeasureValue (NUMBER)
IMRT + CisplatinTime to Secondary Primary Cancer9.9 percentage of participants
IMRT + CetuximabTime to Secondary Primary Cancer10.3 percentage of participants
p-value: 0.9595% CI: [0.61, 1.58]Log Rank
Secondary

Work Status Questionnaire at Baseline, End of Treatment, 3, 6, and 12 Months.

Time frame: From randomization to 1 year after end of treatment.

Other Pre-specified

Overall Survival by Ethnicity

NIH-required analysis. An event for overall survival is death due to any cause. Survival time is defined as time from randomization to the date of death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is hazard ratio, which is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.

Population: Eligible participants. Data were stratified by ethnicity.

ArmMeasureGroupValue (NUMBER)
IMRT + CisplatinOverall Survival by EthnicityUnknown or Not Reported66.8 percentage of participants
IMRT + CisplatinOverall Survival by EthnicityHispanic or Latino100 percentage of participants
IMRT + CisplatinOverall Survival by EthnicityNot Hispanic or Latino84.7 percentage of participants
IMRT + CetuximabOverall Survival by EthnicityHispanic or Latino70.7 percentage of participants
IMRT + CetuximabOverall Survival by EthnicityNot Hispanic or Latino77.9 percentage of participants
IMRT + CetuximabOverall Survival by EthnicityUnknown or Not Reported85.7 percentage of participants
Other Pre-specified

Overall Survival by Race

NIH-required analysis. An event for overall survival is death due to any cause. Survival time is defined as time from randomization to the date of death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is hazard ratio, which is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years. Five-year rates are reported here.

Population: Eligible participants. Data were stratified by ethnicity.

ArmMeasureGroupValue (NUMBER)
IMRT + CisplatinOverall Survival by RaceAsianNA percentage of participants
IMRT + CisplatinOverall Survival by RaceBlack or African American77.5 percentage of participants
IMRT + CisplatinOverall Survival by RaceUnknown or Not Reported100 percentage of participants
IMRT + CisplatinOverall Survival by RaceWhite84.6 percentage of participants
IMRT + CetuximabOverall Survival by RaceNative Hawaiian or Other Pacific IslanderNA percentage of participants
IMRT + CetuximabOverall Survival by RaceBlack or African American76.4 percentage of participants
IMRT + CetuximabOverall Survival by RaceMore than one raceNA percentage of participants
IMRT + CetuximabOverall Survival by RaceUnknown or Not Reported100 percentage of participants
IMRT + CetuximabOverall Survival by RaceWhite77.3 percentage of participants
IMRT + CetuximabOverall Survival by RaceAmerican Indian or Alaska Native100 percentage of participants
IMRT + CetuximabOverall Survival by RaceAsian100 percentage of participants
Other Pre-specified

Overall Survival by Sex

NIH-required analysis. An event for overall survival is death due to any cause. Survival time is defined as time from randomization to the date of death or last known follow-up (censored). Rates are estimated by the Kaplan-Meier method. The protocol endpoint is hazard ratio, which is reported in the statistical analysis results. Five-year rate is reported simply as summary data; it is not the outcome measure.

Time frame: From randomization to last follow-up. Analysis was to occur after 180 deaths were reported. Analysis occurred after 133 deaths were reported. Maximum follow-up at time of analysis was 6.5 years.

Population: Eligible participants. Data were stratified by sex.

ArmMeasureGroupValue (NUMBER)
IMRT + CisplatinOverall Survival by SexFemale93.4 percentage of participants
IMRT + CisplatinOverall Survival by SexMale83.8 percentage of participants
IMRT + CetuximabOverall Survival by SexFemale76.8 percentage of participants
IMRT + CetuximabOverall Survival by SexMale78.0 percentage of participants

Source: ClinicalTrials.gov · Data processed: Aug 29, 2026