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NCT01013649 · OUTCOME

Disease-free Survival (Percentage of Participants Alive Without Disease) [Phase III]

Gemcitabine Hydrochloride With or Without Erlotinib Hydrochloride Followed by the Same Chemotherapy Regimen With or Without Radiation Therapy and Capecitabine or Fluorouracil in Treating Patients With Pancreatic Cancer That Has Been Removed by Surgery · Source last updated 2026-02-23

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

Measure
MEDIAN
Unit
months
Interval / dispersion
90% Confidence Interval
Time frame
From step 2 randomization (chemotherapy vs. chemotherapy followed by chemoradiation) to disease event, death, or last follow-up. Maximum follow-up at time of the phase III analysis was 12.8 years, measured from step 2 randomization.

What was measured

Disease-free survival is estimated by the Kaplan-Meier method. Disease-free survival time is measured from step 2 randomization to the first date of local or regional disease, distant metastases, second primary tumor, death due to any cause, or last known follow-up (censored). Analysis was to occur at the earlier of 316 reported deaths or when all participants have five years potential follow-up from second step randomization.

Analysis population: Participants randomized at step 2.

Groups in this outcome

Arm III (Chemotherapy)

Patients receive the same treatment as in arm I for 1 month. Patients undergo CT, MRI, and/or x-ray imaging throughout the trial. Patients also undergo blood sample collection during screening and follow-up and undergo tissue sample collection at baseline.

Arm IV (Chemotherapy, Chemoradiotherapy)

Patients receive the same treatment as in arm I for 1 month. Beginning within 7-21 days after completion of chemotherapy, patients undergo radiotherapy (3-dimensional conformal radiotherapy or intensity-modulated radiotherapy) 5 days per week for 5.5 weeks (28 fractions). During radiotherapy, patients receive either capecitabine PO BID 5 days per week or fluorouracil IV continuously for 5.5 weeks or until radiotherapy is completed. Patients undergo CT, MRI, and/or x-ray imaging throughout the trial. Patients also undergo blood sample collection during screening and follow-up and undergo tissue sample collection at baseline.

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Arm III (Chemotherapy)174
Arm IV (Chemotherapy, Chemoradiotherapy)180

Reported measurements

Source class 1
Values in months · Interval/dispersion: 90% Confidence Interval
GroupValueSpreadLowerUpperComment
Arm III (Chemotherapy)12.4Not reported9.615.2Not reported
Arm IV (Chemotherapy, Chemoradiotherapy)15.6Not reported13.218.8Not reported

Source statistical analyses

Group order, estimate direction, methods and comments are retained. No treatment ranking is inferred.

  1. ci Lower Limit
    0.68
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    90
    ci Upper Limit
    0.99
    estimate Comment
    Reference level = Arm III
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    param Type
    Hazard Ratio (HR)
    param Value
    0.82
Complete source fields
analyses
  1. ci Lower Limit
    0.68
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    90
    ci Upper Limit
    0.99
    estimate Comment
    Reference level = Arm III
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    param Type
    Hazard Ratio (HR)
    param Value
    0.82
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        9.6
        upper Limit
        15.2
        value
        12.4
      2. group Id
        OG001
        lower Limit
        13.2
        upper Limit
        18.8
        value
        15.6
denoms
  1. counts
    1. group Id
      OG000
      value
      174
    2. group Id
      OG001
      value
      180
    units
    Participants
description
Disease-free survival is estimated by the Kaplan-Meier method. Disease-free survival time is measured from step 2 randomization to the first date of local or regional disease, distant metastases, second primary tumor, death due to any cause, or last known follow-up (censored). Analysis was to occur at the earlier of 316 reported deaths or when all participants have five years potential follow-up from second step randomization.
dispersion Type
90% Confidence Interval
groups
  1. description
    Patients receive the same treatment as in arm I for 1 month. Patients undergo CT, MRI, and/or x-ray imaging throughout the trial. Patients also undergo blood sample collection during screening and follow-up and undergo tissue sample collection at baseline.
    id
    OG000
    title
    Arm III (Chemotherapy)
  2. description
    Patients receive the same treatment as in arm I for 1 month. Beginning within 7-21 days after completion of chemotherapy, patients undergo radiotherapy (3-dimensional conformal radiotherapy or intensity-modulated radiotherapy) 5 days per week for 5.5 weeks (28 fractions). During radiotherapy, patients receive either capecitabine PO BID 5 days per week or fluorouracil IV continuously for 5.5 weeks or until radiotherapy is completed. Patients undergo CT, MRI, and/or x-ray imaging throughout the trial. Patients also undergo blood sample collection during screening and follow-up and undergo tissue sample collection at baseline.
    id
    OG001
    title
    Arm IV (Chemotherapy, Chemoradiotherapy)
param Type
MEDIAN
population Description
Participants randomized at step 2.
reporting Status
POSTED
time Frame
From step 2 randomization (chemotherapy vs. chemotherapy followed by chemoradiation) to disease event, death, or last follow-up. Maximum follow-up at time of the phase III analysis was 12.8 years, measured from step 2 randomization.
title
Disease-free Survival (Percentage of Participants Alive Without Disease) [Phase III]
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice