Skip to content
← Full study record

NCT00410761 · OUTCOME

Biochemical Response Carcinoembryonic Antigen (CEA)

An Efficacy Study Comparing ZD6474 to Placebo in Medullary Thyroid Cancer · Source last updated 2025-09-24

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

Measure
NUMBER
Unit
Participants
Interval / dispersion
Not reported
Time frame
Blood samples for analysis of CEA were taken at screening baseline (average of 0, 1, 4 and 8 hours), then every 4 weeks until discontinuation and 60 day follow up

What was measured

Best biochemical response was calculated from assessments at baseline and during treatment. Responders were those patients with a best biochemical response of CR or PR, confirmed by repeat assessments, which were to be performed no less than 4 weeks after the criteria for PR or CR were first met. CR and PR being defined according to level of CEA.

Groups in this outcome

Vandetanib 300 mg

Vandetanib (300 mg daily)

Placebo

Placebo daily

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

Analysis denominator · Participants

GroupSource count
Vandetanib 300 mg231
Placebo100

Reported measurements

Source class 1
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Vandetanib 300 mg119Not reportedNot reportedNot reportedNot reported
Placebo2Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        119
      2. group Id
        OG001
        value
        2
denoms
  1. counts
    1. group Id
      OG000
      value
      231
    2. group Id
      OG001
      value
      100
    units
    Participants
description
Best biochemical response was calculated from assessments at baseline and during treatment. Responders were those patients with a best biochemical response of CR or PR, confirmed by repeat assessments, which were to be performed no less than 4 weeks after the criteria for PR or CR were first met. CR and PR being defined according to level of CEA.
groups
  1. description
    Vandetanib (300 mg daily)
    id
    OG000
    title
    Vandetanib 300 mg
  2. description
    Placebo daily
    id
    OG001
    title
    Placebo
param Type
NUMBER
reporting Status
POSTED
time Frame
Blood samples for analysis of CEA were taken at screening baseline (average of 0, 1, 4 and 8 hours), then every 4 weeks until discontinuation and 60 day follow up
title
Biochemical Response Carcinoembryonic Antigen (CEA)
type
SECONDARY
unit Of Measure
Participants

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

Preserved source evidence · Not medical advice