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NCT00648739 · OUTCOME

Density Of B-CLL Cells Bound At Baseline (Predose) And Day 1 (Postdose)

Safety and Dose Ranging Study of Samalizumab to Treat Relapsing or Refractory CLL or MM · Source last updated 2019-03-05

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

Measure
MEDIAN
Unit
mean channel fluorescent intensity
Interval / dispersion
Full Range
Time frame
Baseline (Predose) and Day 1 (Postdose)

What was measured

Bound samalizumab was detected using a mAb specific for samalizumab. The binding of samalizumab to CD200 on peripheral B-CLL tumor cells was evaluated in participants with B-CLL by flow cytometry and expressed as mean channel fluorescence intensity (MFI) of bound samalizumab to provide an indication of the density of bound samalizumab on target B-CLL cells. For participants with insufficient numbers of peripheral B-CLL for analysis, the samples were documented as "unevaluable" and an analysis was not performed.

Analysis population: All participants with B-CLL who had evaluable assessments for bound samalizumab were included in the analysis. No participants with B-CLL received samalizumab at the 600 mg/m\^2 dose level.

Groups in this outcome

Samalizumab 50 mg/m^2

Participants assigned to this dose cohort received a single IV dose of samalizumab 50 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.

Samalizumab 100 mg/m^2

Participants assigned to this dose cohort received a single IV dose of samalizumab 100 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.

Samalizumab 200 mg/m^2

Participants assigned to this dose cohort received a single IV dose of samalizumab 200 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.

Samalizumab 300 mg/m^2

Participants assigned to this dose cohort received a single IV dose of samalizumab 300 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.

Samalizumab 400 mg/m^2

Participants assigned to this dose cohort received a single IV dose of samalizumab 400 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.

Samalizumab 500 mg/m^2

Participants assigned to this dose cohort received a single IV dose of samalizumab 500 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.

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

Analysis denominator · Participants

GroupSource count
Samalizumab 50 mg/m^24
Samalizumab 100 mg/m^25
Samalizumab 200 mg/m^22
Samalizumab 300 mg/m^22
Samalizumab 400 mg/m^23
Samalizumab 500 mg/m^25

Reported measurements

Baseline (Predose)
Values in mean channel fluorescent intensity · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
Samalizumab 50 mg/m^22.95Not reported1.911Not reported
Samalizumab 100 mg/m^24.10Not reported3.55.6Not reported
Samalizumab 200 mg/m^23.25Not reported3.23.3Not reported
Samalizumab 300 mg/m^22.35Not reported1.73Not reported
Samalizumab 400 mg/m^22.40Not reported1.73.4Not reported
Samalizumab 500 mg/m^21.40Not reported13.7Not reported
Day 1 (Postdose)
Values in mean channel fluorescent intensity · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
Samalizumab 50 mg/m^23.85Not reported3.34.1Not reported
Samalizumab 100 mg/m^27.10Not reported511.1Not reported
Samalizumab 200 mg/m^217.95Not reported16.619.3Not reported
Samalizumab 300 mg/m^211.20Not reported5.616.8Not reported
Samalizumab 400 mg/m^25.80Not reported4.626.6Not reported
Samalizumab 500 mg/m^22.30Not reported1.917.6Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        1.9
        upper Limit
        11
        value
        2.95
      2. group Id
        OG001
        lower Limit
        3.5
        upper Limit
        5.6
        value
        4.10
      3. group Id
        OG002
        lower Limit
        3.2
        upper Limit
        3.3
        value
        3.25
      4. group Id
        OG003
        lower Limit
        1.7
        upper Limit
        3
        value
        2.35
      5. group Id
        OG004
        lower Limit
        1.7
        upper Limit
        3.4
        value
        2.40
      6. group Id
        OG005
        lower Limit
        1
        upper Limit
        3.7
        value
        1.40
    title
    Baseline (Predose)
  2. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        3.3
        upper Limit
        4.1
        value
        3.85
      2. group Id
        OG001
        lower Limit
        5
        upper Limit
        11.1
        value
        7.10
      3. group Id
        OG002
        lower Limit
        16.6
        upper Limit
        19.3
        value
        17.95
      4. group Id
        OG003
        lower Limit
        5.6
        upper Limit
        16.8
        value
        11.20
      5. group Id
        OG004
        lower Limit
        4.6
        upper Limit
        26.6
        value
        5.80
      6. group Id
        OG005
        lower Limit
        1.9
        upper Limit
        17.6
        value
        2.30
    title
    Day 1 (Postdose)
denoms
  1. counts
    1. group Id
      OG000
      value
      4
    2. group Id
      OG001
      value
      5
    3. group Id
      OG002
      value
      2
    4. group Id
      OG003
      value
      2
    5. group Id
      OG004
      value
      3
    6. group Id
      OG005
      value
      5
    units
    Participants
description
Bound samalizumab was detected using a mAb specific for samalizumab. The binding of samalizumab to CD200 on peripheral B-CLL tumor cells was evaluated in participants with B-CLL by flow cytometry and expressed as mean channel fluorescence intensity (MFI) of bound samalizumab to provide an indication of the density of bound samalizumab on target B-CLL cells. For participants with insufficient numbers of peripheral B-CLL for analysis, the samples were documented as "unevaluable" and an analysis was not performed.
dispersion Type
Full Range
groups
  1. description
    Participants assigned to this dose cohort received a single IV dose of samalizumab 50 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.
    id
    OG000
    title
    Samalizumab 50 mg/m^2
  2. description
    Participants assigned to this dose cohort received a single IV dose of samalizumab 100 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.
    id
    OG001
    title
    Samalizumab 100 mg/m^2
  3. description
    Participants assigned to this dose cohort received a single IV dose of samalizumab 200 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.
    id
    OG002
    title
    Samalizumab 200 mg/m^2
  4. description
    Participants assigned to this dose cohort received a single IV dose of samalizumab 300 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.
    id
    OG003
    title
    Samalizumab 300 mg/m^2
  5. description
    Participants assigned to this dose cohort received a single IV dose of samalizumab 400 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.
    id
    OG004
    title
    Samalizumab 400 mg/m^2
  6. description
    Participants assigned to this dose cohort received a single IV dose of samalizumab 500 mg/m\^2. Participants who tolerated the drug and demonstrated at least stable disease received up to 3 additional cycles of samalizumab at the same dose originally received at a minimum of 28-day intervals and beginning no sooner than 6 weeks after the initial dose.
    id
    OG005
    title
    Samalizumab 500 mg/m^2
param Type
MEDIAN
population Description
All participants with B-CLL who had evaluable assessments for bound samalizumab were included in the analysis. No participants with B-CLL received samalizumab at the 600 mg/m\^2 dose level.
reporting Status
POSTED
time Frame
Baseline (Predose) and Day 1 (Postdose)
title
Density Of B-CLL Cells Bound At Baseline (Predose) And Day 1 (Postdose)
type
SECONDARY
unit Of Measure
mean channel fluorescent intensity

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Preserved source evidence · Not medical advice