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Study of Panitumumab Efficacy in Patients With Recurrent and/or Metastatic Head and Neck Cancer

A Phase 3 Randomized Trial of Chemotherapy With or Without Panitumumab in Patients With Metastatic and/or Recurrent Squamous Cell Carcinoma of the Head and Neck (SCCHN)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00460265
Acronym
SPECTRUM
Enrollment
658
Registered
2007-04-13
Start date
2007-05-31
Completion date
2012-05-31
Last updated
2014-03-07

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

Conditions

Recurrent and/or Metastatic Head and Neck Cancer

Keywords

Squamous Cell Carcinoma, Epidermal Growth Factor, Epidermal Growth Factor Receptor, SCCHN, Metastatic Head and Neck Cancer, EGFr, Head and Neck Cancer, Recurrent Head and Neck Cancer

Brief summary

The purpose of this study is to determine the treatment effect of Panitumumab in combination with chemotherapy versus chemotherapy alone as first line therapy for metastatic and/or recurrent squamous cell carcinoma of the head and neck.

Interventions

DRUGARM 2

Subjects will receive Cisplatin plus 5FU

DRUGARM 1

Subjects will receive Panitumumab plus cisplatin and 5FU

Sponsors

Amgen
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Man or woman at least 18 years old. * Histologically or cytologically confirmed metastatic and/or recurrent squamous cell carcinoma (or its variants) of the head and neck. * Diagnosis of metastatic disease and/or recurrent disease following locoregional therapy and determined to be incurable by surgery or radiotherapy. * Subjects who have received radiation as primary therapy are eligible if locoregional recurrence is in the field of radiation and has occurred ≥6 months after the completion of radiation therapy. Subjects whose locoregional recurrence is solely outside the field of radiation are eligible if the recurrence has occurred ≥ 3 months after the completion of radiation therapy. * Measurable and non-measurable disease. * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

Exclusion criteria

* History or known presence of Central Nervous System (CNS) metastases. * History of another primary cancer, except: curatively treated in situ cervical cancer, or curatively resected non-melanoma skin cancer, or other primary solid tumor curatively treated with no known active disease present and no treatment administered for ≥ 2 years before randomization. * Nasopharyngeal carcinoma. * Prior systemic treatment for metastatic and/or recurrent SCCHN * Prior cisplatin containing induction chemotherapy followed by cisplatin containing chemoradiotherapy * Prior anti-EGFr (Epidermal growth factor receptor) antibody therapy or treatment with small molecule EGFr inhibitors * Clinically significant cardiovascular disease (including myocardial infarction, unstable angina, symptomatic congestive heart failure, serious uncontrolled cardiac arrhythmia) less than or equal to 1 year prior to randomization. History of interstitial lung disease (eg, pneumonitis or pulmonary fibrosis) or evidence of interstitial lung disease on baseline chest computerized tomography (CT) scan. * Symptomatic peripheral neuropathy grade ≥ 2 based on the CTCAE v3.0 * Grade ≥ 3 hearing loss based on the Common Terminology Criteria for Adverse Events (CTCAE) v3.0 Auditory/Ear (Hearing \[without monitoring program\])

Design outcomes

Primary

MeasureTime frameDescription
Overall SurvivalUpto 56 monthsTime from randomization to death

Secondary

MeasureTime frameDescription
Overall Response RateEvery 6 weeks until disease progression, up to 56 monthsAn objective tumor response of complete or partial response per modified Response Evaluation Criteria in Solid Tumors (RECIST) v1.0 that was confirmed no less than 28 days after the criteria for response were first met. Complete response = disappearance of all target lesions and partial response = ≥30% reduction in lesion size.
Duration of ResponseEvery 6 weeks until disease progression, up to 56 monthsTime from the first confirmed objective response of complete or partial response (that is subsequently confirmed at least 28 days later) to disease progression using a modified version of the RECIST v1.0 (see protocol Appendix H).
Time to ProgressionEvery 6 weeks until disease progression, up to 56 monthsTime from randomization date to date of disease progression using a modified version of the RECIST 1.0 (see protocol Appendix H)
Time to ResponseEvery 6 weeks until disease progression, upto 56 monthsTime from randomization date to the first confirmed objective response of complete or partial response (that is subsequently confirmed at least 28 days later) using a modified version of the RECIST v1.0.
Progression Free SurvivalEvery 6 weeks until disease progression or deaths, upto 56 monthsTime from randomization date to date of disease progression using a modified version of the RECIST v1.0 or death.

Participant flow

Recruitment details

Subjects were enrolled from 25 May 2007 to 10 March 2009.

Participants by arm

ArmCount
Panitumumab Plus Chemotherapy
Consists of Panitumumab plus Cisplatin and 5-FU
327
Chemotherapy Alone
Consists of Cisplatin and 5-FU
330
Total657

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up1415
Overall StudyOngoing6047
Overall StudyPhysician Decision12
Overall StudyWithdrawal by Subject1025

Baseline characteristics

CharacteristicPanitumumab Plus ChemotherapyTotalChemotherapy Alone
Age, Continuous57.6 years
STANDARD_DEVIATION 8.5
58.1 years
STANDARD_DEVIATION 8.2
58.6 years
STANDARD_DEVIATION 7.8
ECOG perfomance score, 0/1/2
0
98 subjects196 subjects98 subjects
ECOG perfomance score, 0/1/2
1
227 subjects455 subjects228 subjects
ECOG perfomance score, 0/1/2
2
2 subjects6 subjects4 subjects
Previously treated with chemotherapy and/or radiotherapy, Yes/No
No
60 subjects127 subjects67 subjects
Previously treated with chemotherapy and/or radiotherapy, Yes/No
Yes
267 subjects530 subjects263 subjects
Primary tumor site, oropharynx&larynx/oral cavity&hypopharynx
Oral cavity and hypopharynx
141 subjects280 subjects139 subjects
Primary tumor site, oropharynx&larynx/oral cavity&hypopharynx
Oropharynx and larynx
186 subjects377 subjects191 subjects
Race/Ethnicity, Customized
Aborigine
1 subjects1 subjects0 subjects
Race/Ethnicity, Customized
Asian
25 subjects55 subjects30 subjects
Race/Ethnicity, Customized
Black or African American
4 subjects6 subjects2 subjects
Race/Ethnicity, Customized
Hispanic or Latino
13 subjects25 subjects12 subjects
Race/Ethnicity, Customized
Japanese
13 subjects20 subjects7 subjects
Race/Ethnicity, Customized
Other
3 subjects9 subjects6 subjects
Race/Ethnicity, Customized
Unknown/Missing
0 subjects2 subjects2 subjects
Race/Ethnicity, Customized
White or Caucasian
268 subjects539 subjects271 subjects
Sex: Female, Male
Female
44 Participants87 Participants43 Participants
Sex: Female, Male
Male
283 Participants570 Participants287 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
311 / 325301 / 325
serious
Total, serious adverse events
157 / 325139 / 325

Outcome results

Primary

Overall Survival

Time from randomization to death

Time frame: Upto 56 months

Population: Intention to treat (ITT)

ArmMeasureValue (MEDIAN)
Panitumumab Plus ChemotherapyOverall Survival11.1 months
Chemotherapy AloneOverall Survival9.0 months
p-value: 0.140395% CI: [0.729, 1.046]Log Rank
Secondary

Duration of Response

Time from the first confirmed objective response of complete or partial response (that is subsequently confirmed at least 28 days later) to disease progression using a modified version of the RECIST v1.0 (see protocol Appendix H).

Time frame: Every 6 weeks until disease progression, up to 56 months

Population: Included only those subjects with a confirmed complete or partial response.

ArmMeasureValue (MEDIAN)
Panitumumab Plus ChemotherapyDuration of Response5.6 months
Chemotherapy AloneDuration of Response5.7 months
Secondary

Overall Response Rate

An objective tumor response of complete or partial response per modified Response Evaluation Criteria in Solid Tumors (RECIST) v1.0 that was confirmed no less than 28 days after the criteria for response were first met. Complete response = disappearance of all target lesions and partial response = ≥30% reduction in lesion size.

Time frame: Every 6 weeks until disease progression, up to 56 months

Population: The subset of subjects in the ITT analysis set with at least one baseline uni-dimensionally measurable lesion using a modified version of the RECIST v1.0 (see protocol Appendix H)

ArmMeasureValue (NUMBER)
Panitumumab Plus ChemotherapyOverall Response Rate101 subjects
Chemotherapy AloneOverall Response Rate73 subjects
95% CI: [3.13, 18.68]
95% CI: [1.15, 2.44]
Secondary

Progression Free Survival

Time from randomization date to date of disease progression using a modified version of the RECIST v1.0 or death.

Time frame: Every 6 weeks until disease progression or deaths, upto 56 months

Population: ITT

ArmMeasureValue (MEDIAN)
Panitumumab Plus ChemotherapyProgression Free Survival5.8 months
Chemotherapy AloneProgression Free Survival4.6 months
95% CI: [0.659, 0.922]
Secondary

Time to Progression

Time from randomization date to date of disease progression using a modified version of the RECIST 1.0 (see protocol Appendix H)

Time frame: Every 6 weeks until disease progression, up to 56 months

Population: ITT

ArmMeasureValue (MEDIAN)
Panitumumab Plus ChemotherapyTime to Progression6.8 months
Chemotherapy AloneTime to Progression5.6 months
Secondary

Time to Response

Time from randomization date to the first confirmed objective response of complete or partial response (that is subsequently confirmed at least 28 days later) using a modified version of the RECIST v1.0.

Time frame: Every 6 weeks until disease progression, upto 56 months

Population: Included only those subjects with a confirmed complete response or partial response.

ArmMeasureValue (MEDIAN)
Panitumumab Plus ChemotherapyTime to Response1.4 months
Chemotherapy AloneTime to Response1.5 months

Source: ClinicalTrials.gov · Data processed: Mar 23, 2026