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NCT00007345 · OUTCOME

Fold Change in Histone Acetylation

Depsipeptide to Treat Patients With Cutaneous T-Cell Lymphoma and Peripheral T-Cell Lymphoma · Source last updated 2017-05-16

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

Measure
MEDIAN
Unit
Fold change
Interval / dispersion
Full Range
Time frame
4 hours, 24 hours, and 48 hours after Romidepsin

What was measured

Fold change is calculated by dividing the level of histone acetylation in a treated sample (at 4, 24, and 48 hours) measured as intensity on a dot blot immunoassay, divided by the intensity in the pre-treatment sample. We considered a ≥ 2-fold change a measurable difference, and indicative of successful HDAC inhibition by romidepsin (depsipeptide).

Analysis population: Global histone acetylation of all samples at pretreatment was designated as 1; values at other time points for each patient were calculated relative to the corresponding pretreatment value.

Groups in this outcome

Peripheral T-cell Lymphoma (PTCL)

Participants received at least one protocol prescribed dose or higher of Romidepsin intravenously at 14mg/m\^2 and at 17.5 mg/m\^2 on days 1, 8, and 15 of a 28 day cycle.

Cutaneous T-cell Lymphoma (CTCL)

Participants received at least one protocol prescribed dose or higher of Romidepsin intravenously at 14mg/m\^2 and at 17.5 mg/m\^2 on days 1, 8, and 15 of a 28 day cycle.

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

Analysis denominator · Participants

GroupSource count
Peripheral T-cell Lymphoma (PTCL)18
Cutaneous T-cell Lymphoma (CTCL)29

Reported measurements

4 hours
Values in Fold change · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
Peripheral T-cell Lymphoma (PTCL)2.99Not reported0.5311.03Not reported
Cutaneous T-cell Lymphoma (CTCL)3.00Not reported0.4417.30Not reported
24 hours
Values in Fold change · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
Peripheral T-cell Lymphoma (PTCL)1.97Not reported0.676.71Not reported
Cutaneous T-cell Lymphoma (CTCL)1.78Not reported0.03717.45Not reported
48 hours
Values in Fold change · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
Peripheral T-cell Lymphoma (PTCL)0.62Not reported0.221.02Not reported
Cutaneous T-cell Lymphoma (CTCL)1.67Not reported0.2817.64Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.53
        upper Limit
        11.03
        value
        2.99
      2. group Id
        OG001
        lower Limit
        0.44
        upper Limit
        17.30
        value
        3.00
    title
    4 hours
  2. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.67
        upper Limit
        6.71
        value
        1.97
      2. group Id
        OG001
        lower Limit
        0.037
        upper Limit
        17.45
        value
        1.78
    title
    24 hours
  3. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.22
        upper Limit
        1.02
        value
        0.62
      2. group Id
        OG001
        lower Limit
        0.28
        upper Limit
        17.64
        value
        1.67
    title
    48 hours
denoms
  1. counts
    1. group Id
      OG000
      value
      18
    2. group Id
      OG001
      value
      29
    units
    Participants
description
Fold change is calculated by dividing the level of histone acetylation in a treated sample (at 4, 24, and 48 hours) measured as intensity on a dot blot immunoassay, divided by the intensity in the pre-treatment sample. We considered a ≥ 2-fold change a measurable difference, and indicative of successful HDAC inhibition by romidepsin (depsipeptide).
dispersion Type
Full Range
groups
  1. description
    Participants received at least one protocol prescribed dose or higher of Romidepsin intravenously at 14mg/m\^2 and at 17.5 mg/m\^2 on days 1, 8, and 15 of a 28 day cycle.
    id
    OG000
    title
    Peripheral T-cell Lymphoma (PTCL)
  2. description
    Participants received at least one protocol prescribed dose or higher of Romidepsin intravenously at 14mg/m\^2 and at 17.5 mg/m\^2 on days 1, 8, and 15 of a 28 day cycle.
    id
    OG001
    title
    Cutaneous T-cell Lymphoma (CTCL)
param Type
MEDIAN
population Description
Global histone acetylation of all samples at pretreatment was designated as 1; values at other time points for each patient were calculated relative to the corresponding pretreatment value.
reporting Status
POSTED
time Frame
4 hours, 24 hours, and 48 hours after Romidepsin
title
Fold Change in Histone Acetylation
type
SECONDARY
unit Of Measure
Fold change

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

Preserved source evidence · Not medical advice