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NCT01713946 · OUTCOME

Long Term Evaluation: Relationship Between Seizure Frequency and Time-normalized Everolimus Concentration at Trough (Cmin,TN) - Repeated Measures Analysis

A Placebo-controlled Study of Efficacy & Safety of 2 Trough-ranges of Everolimus as Adjunctive Therapy in Patients With Tuberous Sclerosis Complex (TSC) & Refractory Partial-onset Seizures · Source last updated 2018-11-07

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

Measure
MEAN
Unit
% change over 2-wk in seizures freq.
Interval / dispersion
95% Confidence Interval
Time frame
During everolimus treatment from start of everolimus up to the end of the extension phase, an average of 1.7 year

What was measured

A repeated measures analysis considering fixed 2-week intervals and including the level of exposure (time-normalized Cmin values), the time on-treatment and the seizure frequency at baseline quantified the estimated percentage change over 2 weeks in seizure frequency associated with a double exposure to everolimus, 15 days more on treatment and half the seizure frequency at baseline. A positive percentage change means a reduction in seizure frequency whereas a negative percentage change means an increase in seizure frequency.

Analysis population: Confirmed PK Sample Set from all everolimus-treated patients in the Longer-term Evaluation (LTE) Safety Set, was defined as follows: Cmin collected prior to dose administration on the same treatment day and 20-28 hours after the previous dose, at steady state, and with no evidence of vomiting within 4 hours of the previous dose

Groups in this outcome

Everolimus LT Target of 3 to 7 ng/mL

Participants were randomized to receive everolimus dispersible tablets for oral suspension with titration to a low trough (LT) range of 3 to 7 ng/mL

Everolimus HT Target of 9 to 15 ng/mL

Participants were randomized to receive everolimus dispersible tablets for oral suspension with titration to a high trough (HT) range of 9 to 15 ng/mL

Placebo

Participants were randomized to receive placebo dispersible tablets for oral suspension.

Everolimus Long Term Evaluation (LTE)

Participants who were treated with everolimus either in the Core or Extension phases of the study and were evaluated for longer term safety and efficacy.

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

Analysis denominator · Participants

GroupSource count
Everolimus LT Target of 3 to 7 ng/mL0
Everolimus HT Target of 9 to 15 ng/mL0
Placebo0
Everolimus Long Term Evaluation (LTE)358

Reported measurements

By doubling the time-normalized Cmin (log scale)
Values in % change over 2-wk in seizures freq. · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Everolimus Long Term Evaluation (LTE)8.93Not reported6.8710.95Not reported
By reporting half the seizure freq. at baseline
Values in % change over 2-wk in seizures freq. · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Everolimus Long Term Evaluation (LTE)48.82Not reported46.3751.15Not reported
By adding 12 weeks on treatmen
Values in % change over 2-wk in seizures freq. · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Everolimus Long Term Evaluation (LTE)6.42Not reported4.538.27Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG003
        lower Limit
        6.87
        upper Limit
        10.95
        value
        8.93
    title
    By doubling the time-normalized Cmin (log scale)
  2. categories
    1. measurements
      1. group Id
        OG003
        lower Limit
        46.37
        upper Limit
        51.15
        value
        48.82
    title
    By reporting half the seizure freq. at baseline
  3. categories
    1. measurements
      1. group Id
        OG003
        lower Limit
        4.53
        upper Limit
        8.27
        value
        6.42
    title
    By adding 12 weeks on treatmen
denoms
  1. counts
    1. group Id
      OG000
      value
      0
    2. group Id
      OG001
      value
      0
    3. group Id
      OG002
      value
      0
    4. group Id
      OG003
      value
      358
    units
    Participants
description
A repeated measures analysis considering fixed 2-week intervals and including the level of exposure (time-normalized Cmin values), the time on-treatment and the seizure frequency at baseline quantified the estimated percentage change over 2 weeks in seizure frequency associated with a double exposure to everolimus, 15 days more on treatment and half the seizure frequency at baseline. A positive percentage change means a reduction in seizure frequency whereas a negative percentage change means an increase in seizure frequency.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants were randomized to receive everolimus dispersible tablets for oral suspension with titration to a low trough (LT) range of 3 to 7 ng/mL
    id
    OG000
    title
    Everolimus LT Target of 3 to 7 ng/mL
  2. description
    Participants were randomized to receive everolimus dispersible tablets for oral suspension with titration to a high trough (HT) range of 9 to 15 ng/mL
    id
    OG001
    title
    Everolimus HT Target of 9 to 15 ng/mL
  3. description
    Participants were randomized to receive placebo dispersible tablets for oral suspension.
    id
    OG002
    title
    Placebo
  4. description
    Participants who were treated with everolimus either in the Core or Extension phases of the study and were evaluated for longer term safety and efficacy.
    id
    OG003
    title
    Everolimus Long Term Evaluation (LTE)
param Type
MEAN
population Description
Confirmed PK Sample Set from all everolimus-treated patients in the Longer-term Evaluation (LTE) Safety Set, was defined as follows: Cmin collected prior to dose administration on the same treatment day and 20-28 hours after the previous dose, at steady state, and with no evidence of vomiting within 4 hours of the previous dose
reporting Status
POSTED
time Frame
During everolimus treatment from start of everolimus up to the end of the extension phase, an average of 1.7 year
title
Long Term Evaluation: Relationship Between Seizure Frequency and Time-normalized Everolimus Concentration at Trough (Cmin,TN) - Repeated Measures Analysis
type
SECONDARY
unit Of Measure
% change over 2-wk in seizures freq.

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