Skip to content
← Full study record

NCT04607421 · OUTCOME

SLI, Cohort 1: CL/F of Irinotecan

A Study of Encorafenib Plus Cetuximab With or Without Chemotherapy in People With Previously Untreated Metastatic Colorectal Cancer · Source last updated 2026-06-11

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

Measure
GEOMETRIC_MEAN
Unit
Liters per hour
Interval / dispersion
Geometric Coefficient of Variation
Time frame
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1

What was measured

Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F was calculated as dose administered divided by area under the concentration curve from time 0 extrapolated to infinite time (AUCinf). AUCinf was calculated as AUClast + (Clast\*/kel), where Clast is the predicted plasma concentration at the last quantifiable time point from the log-linear regression analysis, and kel is the terminal phase rate constant calculated by a linear regression of the loglinear concentration-time curve.

Analysis population: The PK parameter analysis set was analyzed. Here, "Overall Number of Participants Analyzed" signifies participants evaluable for this outcome measure. Here, "Number Analyzed" signifies participants evaluable at specified timepoints. Participants received irinotecan in Cohort 1 of SLI, hence data is reported only for Cohort 1 and not for Cohort 2.

Groups in this outcome

SLI: Cohort 1 [EC + FOLFIRI]

Participants received encorafenib 300 milligrams (mg) once daily (QD) orally (received after Cycle 1 Day 3) and cetuximab 500 mg per square meters (mg/m\^2) intravenous (IV) infusion for 120 minutes once every 2 weeks (Q2W) along with fluorouracil 400 mg/m\^2 IV bolus then 2400 mg/m\^2 continuous IV infusion over 46-48 hours Q2W; leucovorin 400 mg/m\^2 IV infusion for 120 minutes Q2W and irinotecan 180 mg/m\^2 as IV infusion for 90 minutes Q2W. Participants received treatment in 28-day cycles.

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

Analysis denominator · Participants

GroupSource count
SLI: Cohort 1 [EC + FOLFIRI]25

Reported measurements

Cycle 1 Day 1

Analysis denominator · Participants

GroupSource count
SLI: Cohort 1 [EC + FOLFIRI]25
Values in Liters per hour · Interval/dispersion: Geometric Coefficient of Variation
GroupValueSpreadLowerUpperComment
SLI: Cohort 1 [EC + FOLFIRI]2827.2Not reportedNot reportedNot reported
Cycle 1 Day 15

Analysis denominator · Participants

GroupSource count
SLI: Cohort 1 [EC + FOLFIRI]22
Values in Liters per hour · Interval/dispersion: Geometric Coefficient of Variation
GroupValueSpreadLowerUpperComment
SLI: Cohort 1 [EC + FOLFIRI]37.139Not reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        spread
        27.2
        value
        28
    denoms
    1. counts
      1. group Id
        OG000
        value
        25
      units
      Participants
    title
    Cycle 1 Day 1
  2. categories
    1. measurements
      1. group Id
        OG000
        spread
        39
        value
        37.1
    denoms
    1. counts
      1. group Id
        OG000
        value
        22
      units
      Participants
    title
    Cycle 1 Day 15
denoms
  1. counts
    1. group Id
      OG000
      value
      25
    units
    Participants
description
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F was calculated as dose administered divided by area under the concentration curve from time 0 extrapolated to infinite time (AUCinf). AUCinf was calculated as AUClast + (Clast\*/kel), where Clast is the predicted plasma concentration at the last quantifiable time point from the log-linear regression analysis, and kel is the terminal phase rate constant calculated by a linear regression of the loglinear concentration-time curve.
dispersion Type
Geometric Coefficient of Variation
groups
  1. description
    Participants received encorafenib 300 milligrams (mg) once daily (QD) orally (received after Cycle 1 Day 3) and cetuximab 500 mg per square meters (mg/m\^2) intravenous (IV) infusion for 120 minutes once every 2 weeks (Q2W) along with fluorouracil 400 mg/m\^2 IV bolus then 2400 mg/m\^2 continuous IV infusion over 46-48 hours Q2W; leucovorin 400 mg/m\^2 IV infusion for 120 minutes Q2W and irinotecan 180 mg/m\^2 as IV infusion for 90 minutes Q2W. Participants received treatment in 28-day cycles.
    id
    OG000
    title
    SLI: Cohort 1 [EC + FOLFIRI]
param Type
GEOMETRIC_MEAN
population Description
The PK parameter analysis set was analyzed. Here, "Overall Number of Participants Analyzed" signifies participants evaluable for this outcome measure. Here, "Number Analyzed" signifies participants evaluable at specified timepoints. Participants received irinotecan in Cohort 1 of SLI, hence data is reported only for Cohort 1 and not for Cohort 2.
reporting Status
POSTED
time Frame
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
title
SLI, Cohort 1: CL/F of Irinotecan
type
SECONDARY
unit Of Measure
Liters per hour

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice