The Placebo Response in Adult ADHD as Objectively Assessed by the TOVA Continuous Performance Test

Ann Rotem, Joseph Ben-Sheetrit, Jeffrey Newcorn, Yaron Danieli, Miriam Peskin, Pavel Golubchik, Rachel Ben-Hayun, Abraham Weizman, Iris Manor

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Objective: We compared the placebo response (PR) as measured by the Test of Variables of Attention (TOVA) and the Conners’ Adult ADHD Rating Scale (CAARS) scores. Method: A retrospective data analysis from a double-blind placebo-controlled study of metadoxine-ER in adults with ADHD. An additional database was used for comparison to TOVA response after methylphenidate challenge (TOVA-MPH-R). Results: PR was highest when calculated from the TOVA-Attention Composite Score (ACS). The PR showed significantly fewer variables improving concomitantly compared with MPH-R. The most prominent correlation between the CAARS-PR and the TOVA-PR was in the Omissions score (p =.032), which was age-dependent (b =.0007, p <.001). Discussion: TOVA-PR has an index-specific profile compared with CAARS-PR and TOVA-MPH-R. The partial correlation of TOVA-PR with CAARS-PR suggests that a composite score of TOVA specific indices and CAARS could have a synergic impact to improve the reliability of the response assessment in adult ADHD.

Original languageEnglish
Pages (from-to)1311-1320
Number of pages10
JournalJournal of Attention Disorders
Volume25
Issue number9
DOIs
StatePublished - Jul 2021

Keywords

  • adult ADHD
  • continuous performance test
  • placebo response

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