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Trial · NCT00339183

Comparison of Treatment Effect of Chemotherapy With Panitumumab to Chemotherapy Alone

NCT00339183, Phase 3, Completed, Amgen; results first posted 2014-05-06

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Comparison of Treatment Effect of Chemotherapy With Panitumumab to Chemotherapy Alone. Trials, record NCT00339183. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00339183

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Comparison of Treatment Effect of Chemotherapy With Panitumumab to Chemotherapy Alone
NCT number
NCT00339183
Status
Completed
Phases
Phase 3
Enrollment
1,186 participants, actual
Lead sponsor
Amgen
Conditions
Metastatic Colorectal Cancer
Interventions
Panitumumab, FOLFIRI
First posted
2006-06-20
Last updated
2022-09-23
Results first posted
2014-05-06

Source ClinicalTrials.gov

Registered outcomes6

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryProgression-free Survival (PFS)From randomization until the data cut-off date of 8 April 2008. Maximum follow-up time was 17 months.
Progression-free survival was defined as the time from randomization to first disease progression per modified Response Evaluation Criteria in Solid Tumors (RECIST) criteria or death, based on independent central radiological assessment. Participants who were alive but did not meet criteria for progression by the data cutoff date were censored at their last evaluable disease assessment date. Progressive disease is defined as a ≥ 20% increase in the size of target lesions or unequivocal progression of existing non-target lesions or any new lesions.
PrimaryOverall SurvivalFrom randomization until the data cut-off date of 30 April 2009. Maximum follow-up time was 33 months
Overall survival was defined as the time from randomization to the date of death. Participants who had not died by the analysis data cutoff date had their time of death censored at their last contact date.
SecondaryPercentage of Participants With an Objective ResponseEvery 8 weeks until disease progression up to the data cut-off date of 30 April 2009. Maximum time on follow-up was 33 months.
Participants were evaluated for tumor response per the modified Response Evaluation Criteria in Solid Tumors (RECIST) criteria every 8 weeks until disease progression. Objective response was defined as the incidence of either a confirmed complete or partial response (CR or PR) while on study, as determined by blinded independent central review and confirmed no less than 4-weeks after the criteria for response are first met. CR: Disappearance of all target and non-target lesions and no new lesions. PR: At least a 30% decrease in the sum of the longest diameter of target lesions and no progression of non-target or no new lesions, or, disappearance of all target lesions and the persistence of ≥ 1 non-target lesion not qualifying for either CR or progressive disease. Participants without a post-baseline assessment were considered non-responders.
SecondaryTime to Disease ProgressionFrom randomization until the data cut-off date of 30 April 2009. Maximum follow-up time was 33 months
Time to progression was defined as the time from the randomization date to the date of first observed disease progression per the modified RECIST criteria. Participants not meeting these criteria by the analysis data cutoff date were censored at their last evaluable disease assessment date. Progressive disease is defined as a ≥ 20% increase in the size of target lesions or unequivocal progression of existing non-target lesions or any new lesions.
SecondaryDuration of ResponseFrom randomization until the data cut-off date of 30 April 2009. Maximum follow-up time was 33 months
Calculated only for those participants with an objective response as the time from the first objective response (subsequently confirmed within no less than 4 weeks) to first observed disease progression per modified-RECIST criteria. Participants not meeting these criteria by the analysis data cutoff date were censored at their last evaluable disease assessment date. Progressive disease is defined as a ≥ 20% increase in the size of target lesions or unequivocal progression of existing non-target lesions or any new lesions.
SecondaryNumber of Participants With Adverse Events (AEs)From randomization until the data cut-off date of 30 April 2009. Maximum follow-up time was 33 months.
A serious adverse event (SAE) is defined by regulatory authorities as one that • is fatal • is life threatening (places the subject at immediate risk of death) • requires in-patient hospitalization or prolongation of existing hospitalization • results in persistent or significant disability/incapacity • is a congenital anomaly/birth defect • other significant medical hazard. The relationship of the adverse event to the study treatment was assessed by the Investigator by means of the question: "Is there a reasonable possibility that the event may have been caused by the study treatment?"

Outcomes6

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYProgression-free Survival (PFS)From randomization until the data cut-off date of 8 April 2008. Maximum follow-up time was 17 months.KRAS Efficacy Analysis Set (participants for whom KRAS status was assessed)monthsMEDIAN
PRIMARYOverall SurvivalFrom randomization until the data cut-off date of 30 April 2009. Maximum follow-up time was 33 monthsKRAS Efficacy Analysis SetmonthsMEDIAN
SECONDARYPercentage of Participants With an Objective ResponseEvery 8 weeks until disease progression up to the data cut-off date of 30 April 2009. Maximum time on follow-up was 33 months.
KRAS Central Tumor Response Analysis Set: subset of participants with at least one uni-dimensionally measurable lesion per the modified RECIST criteria per blinded central radiology review for whom KRAS was assessed.
percentage of participantsNUMBER
SECONDARYTime to Disease ProgressionFrom randomization until the data cut-off date of 30 April 2009. Maximum follow-up time was 33 monthsKRAS Efficacy Analysis SetmonthsMEDIAN
SECONDARYDuration of ResponseFrom randomization until the data cut-off date of 30 April 2009. Maximum follow-up time was 33 monthsKRAS Central Tumor Response Analysis Set: RespondersmonthsMEDIAN
SECONDARYNumber of Participants With Adverse Events (AEs)From randomization until the data cut-off date of 30 April 2009. Maximum follow-up time was 33 months.
Safety analysis set: all participants who received at least 1 dose of panitumumab or chemotherapy. One participant was randomized to Panitumumab Plus FOLFIRI, but received FOLFIRI Alone and is included in the FOLFIRI Alone group for safety analyses.
participantsNUMBER

Results by group32

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Progression-free Survival (PFS)Wild-type KRAS - Panitumumab Plus FOLFIRI5.995% Confidence Interval 5.5 to 6.7months
Progression-free Survival (PFS)Wild-type KRAS - FOLFIRI Alone3.995% Confidence Interval 3.7 to 5.3months
Progression-free Survival (PFS)Mutant KRAS - Panitumumab Plus FOLFIRI5.095% Confidence Interval 3.8 to 5.6months
Progression-free Survival (PFS)Mutant KRAS - FOLFIRI Alone4.995% Confidence Interval 3.6 to 5.6months
Overall SurvivalWild-type KRAS - Panitumumab Plus FOLFIRI14.595% Confidence Interval 13.0 to 16.0months
Overall SurvivalWild-type KRAS - FOLFIRI Alone12.595% Confidence Interval 11.2 to 14.2months
Overall SurvivalMutant KRAS - Panitumumab Plus FOLFIRI11.895% Confidence Interval 10.4 to 13.3months
Overall SurvivalMutant KRAS - FOLFIRI Alone11.195% Confidence Interval 10.3 to 12.4months
Percentage of Participants With an Objective ResponseWild-type KRAS - Panitumumab Plus FOLFIRI35.3595% Confidence Interval 29.92 to 41.08percentage of participants
Percentage of Participants With an Objective ResponseWild-type KRAS - FOLFIRI Alone9.8295% Confidence Interval 6.63 to 13.89percentage of participants

Participant flow8

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPanitumumab Plus FOLFIRI591
Overall StudySTARTEDFOLFIRI Alone595
Overall StudyReceived Study DrugPanitumumab Plus FOLFIRI588
Overall StudyReceived Study DrugFOLFIRI Alone593
Overall StudyCOMPLETEDPanitumumab Plus FOLFIRI470
Overall StudyCOMPLETEDFOLFIRI Alone490
Overall StudyNOT COMPLETEDPanitumumab Plus FOLFIRI121
Overall StudyNOT COMPLETEDFOLFIRI Alone105

Adverse events660

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersPanitumumab Plus FOLFIRI79587
otherAnaemiaBlood and lymphatic system disordersFOLFIRI Alone110594
otherLeukopeniaBlood and lymphatic system disordersPanitumumab Plus FOLFIRI64587
otherLeukopeniaBlood and lymphatic system disordersFOLFIRI Alone60594
otherNeutropeniaBlood and lymphatic system disordersPanitumumab Plus FOLFIRI207587
otherNeutropeniaBlood and lymphatic system disordersFOLFIRI Alone209594
otherThrombocytopeniaBlood and lymphatic system disordersPanitumumab Plus FOLFIRI20587
otherThrombocytopeniaBlood and lymphatic system disordersFOLFIRI Alone39594
otherConjunctivitisEye disordersPanitumumab Plus FOLFIRI81587
otherConjunctivitisEye disordersFOLFIRI Alone11594

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPanitumumab Plus FOLFIRI
Total, all-cause mortalityFOLFIRI Alone
Total, other adverse eventsPanitumumab Plus FOLFIRI575587
Total, other adverse eventsFOLFIRI Alone546594
Total, serious adverse eventsPanitumumab Plus FOLFIRI232587
Total, serious adverse eventsFOLFIRI Alone175594

Papers8

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
20921462BACKGROUNDPubMed
22070868DERIVEDPubMed
24356622BACKGROUNDPubMed
26049686DERIVEDPubMed
26341920DERIVEDPubMed
29627309DERIVEDPubMed
30013091BACKGROUNDPubMed
31902066DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons1

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

Comparison
Panitumumab Plus FOLFIRI vs FOLFIRI Alone: serious adverse events

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT00339183

GET https://conductscience.org/api/trials/v1/NCT00339183/results?page=2