Trudie Chalder

Trudie Chalder, R.M.N., M.Sc., is a Professor of Cognitive Behavioural Psychotherapy at the Institute of Psychiatry in King's College London. Professor Chalder was an investigator on the PACE trial. She has also done consultancy work for insurance companies and has received royalties from Sheldon Press and Constable and Robinson.

Chalder fatigue scale
The Chalder fatigue scale (sometimes known as the Chalder scale) is a symptom scale created by Trudie Chalder and colleagues used to measure tiredness in the PACE trial.

Recovery claims
In a 2011 article in the Guardian UK newspaper professor Chalder was quoted as saying "twice as many people on graded exercise therapy and cognitive behaviour therapy got back to normal" which is not supported by the PACE trial results.

Controversy
In 2000 Chalder & fellow researchers were accused of "unsupported conclusions derived from faulty analyses", and responded that "we've been attacked by gremlins" who changed the data on their manuscript, although this was later revealed to have been an error at the BMJ. Trudie Chalder gave evidence to the PACE trial tribunal opposing the release of the unpublished scientific data, during which she stated that no threats had been made to any PACE trial researchers, evidence that appeared to be at odds with previous media interviews given by Simon Wessely and the comparison of ME/CFS activists with "animal rights" activists made by QMUL's expert witness during the tribunal.

Notable studies

 * 1993, Development of a fatigue scale
 * 1997, Chronic fatigue syndrome. A practical guide to assessment and management
 * 2012, Experiences of young people who have undergone the Lightning Process to treat chronic fatigue syndrome/myalgic encephalomyelitis
 * 2016, An attention and interpretation bias for illness-specific information in chronic fatigue syndrome
 * 2016, Cognitive behaviour therapy for chronic fatigue syndrome: Differences in treatment outcome between a tertiary treatment centre in the United Kingdom and the Netherlands
 * 2016, Complementary and alternative healthcare use by participants in the PACE trial of treatments for chronic fatigue syndrome
 * 2016, Mortality of people with chronic fatigue syndrome: a retrospective cohort study in England and Wales from the South London and Maudsley NHS Foundation Trust Biomedical Research Centre (SLaM BRC) Clinical Record Interactive Search (CRIS) Register
 * The study has been criticized by James Coyne.
 * 2017, The presence of co-morbid mental health problems in a cohort of adolescents with chronic fatigue syndrome
 * 2017, Response to: "Do more people recover from chronic fatigue syndrome with cognitive behaviour therapy or graded exercise therapy than with other treatments?"
 * 2018, Illness beliefs of adolescents with CFS and their parents: the perceived causes of illness and beliefs about recovery
 * 2018, Home-based family focused rehabilitation for adolescents with severe Chronic Fatigue Syndrome
 * 2018, Does fatigue and distress in a clinical cohort of adolescents with chronic fatigue syndrome correlate with fatigue and distress in their parents?

Books

 * Overcoming Chronic Fatigue

Talks and interviews

 * Trudie Chalder interview, undated (YouTube)
 * 2011, Trudie Chalder interview (YouTube)
 * 2016, Slide from talk claiming "It is possible to recover from CFS"
 * 2018, Chalder is quoted in an article as saying "“There are groups of people who perceive all such trials negatively; I’m not sure why. Perhaps they think we are suggesting the problem is psychological. We’re not. This is simply a rehabilitative treatment to help manage the symptoms more effectively.”

Directorships and shareholdings
Trudie Chaldler was an officer of OneHealth (Company number 04364122) from 2002 to 15 June 2010. Peter Denton White was also an officer of Onehealth. Onehealth was dissolved on 15 June 2010. The memorandum of association stated that the purpose is to promote the biopsychosocial model of illness.

Trudie Chaldler was a director of British Association for Behavioural and Cognitive Psychotherapies (BABCP) Company number 04839948 from 2011 until she resigned on 23 July 2015.

Trudie Chalder has been a director of WESTSIDE PROPERTY (MANAGEMENT) LIMITED (Company number 02067823) since April 2013.

None of these have been disclosed in her research work and publications.

Source of amendment info: https://beta.companieshouse.gov.uk/company/04364122 https://beta.companieshouse.gov.uk/company/04839948/officers https://beta.companieshouse.gov.uk/officers/tT80tPHUBVJeHaOW03QrbfZGfG8/appointments

Learn more

 * Wikipedia - Trudie Chalder
 * 2013, Wiley - Chronic Fatigue Syndrome Part Two. Specific Disorders