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Nacadia Effect Study (NEST) (NEST)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01849718
Recruitment Status : Completed
First Posted : May 8, 2013
Last Update Posted : October 15, 2018
University of Aarhus
Information provided by (Responsible Party):
Anne Dahl Refshauge, University of Copenhagen

Brief Summary:

This research project deals with stress treatment in the form of garden therapy in the therapy garden Nacadia. The therapy Garden Nacadia has an evidence-based design that is specially designed for the treatment of stressed people.

Nacadia-therapy can be described as a process in which the patient's health and well-being is assumed to enhance by the presence of the natural environment and through participating in meaningful gardening activities.

NEST concerns research on the effect of Nacadia-therapy. The study consists of randomized and longitudinal studies of the effects of Nacadia-therapy compared to acknowledged cognitive behavioral therapy (CBT).

The outcome measures for example consist of: ability to return to work, health care use, psychological measurements related to stress, health, quality of life and changes in medication use. Further, exploratory studies of the garden therapy in the form of observations and interviews will be performed, to get a better understanding of the garden and the garden activities' importance for the therapeutic purposes.


- garden therapy, in a designed natural environment, will lead to improved health and well-being for people who are off sick with stress-related disorders

Condition or disease
Stress-related Problem

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Study Type : Observational
Actual Enrollment : 84 participants
Observational Model: Case-Control
Time Perspective: Other
Official Title: Nacadia Effect Study - Studying the Effect of Garden Therapy in Relations to People Suffering From Stress
Actual Study Start Date : August 2013
Actual Primary Completion Date : April 2016
Actual Study Completion Date : November 2017

CBT - Cognitive Behavioural Therapy

40 participants will receive cognitive behavioural therapy in a clinical setting.

The duration of the individual sessions are one hour, and there are 1-2 sessions per. week, totaling 20 hours, incl. 4 hours of transition conversations.

The conversations will be exclusively CBT-based. Number of hours for conversational therapy: 20 hours of individual psychotherapy

Nacadia Therapy

40 participants will receive garden therapy in a designed, natural environment.

The individual sessions last three hours with two sessions per week the first and last week and three sessions per week in week 2-9. This gives a total of 96 hours, including 4 x 3 hours transition conversation and 10 x ½ hour individual interviews.

Experiences and activities related to the garden environment are integrated with mindfulness exercises. The individual conversations in the Nacadia-therapy will be mindfulness-based CBT.

10 x ½ an hour of individual psychotherapy.

Primary Outcome Measures :
  1. Patient-related outcomes - quality of life [ Time Frame: One year ]

Secondary Outcome Measures :
  1. Function and health - symptom relief [ Time Frame: One year ]
  2. Health economic evaluation - Cost efficiency (cost-effectiveness) [ Time Frame: One year ]
    1. Lower consumption of health care
    2. Resumption of work

  3. Patient-related outcome (quality of life) [ Time Frame: One year ]
    1. Cost utility
    2. Quality adjusted life years

Other Outcome Measures:
  1. Nature consumption [ Time Frame: One year ]
    Specifically for the garden therapy, the participants' nature consumption is a primary outcome

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   20 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
The project has agreed with a number of surrounding municipalities that they refer participants of both genders who are 20-60 years of age to the project through the rehabilitation institutions 'Incita' and 'Væksthuset', WHO are external collaborators Affiliated with the local job centers. Furthermore, local citizens can through their own doctor / psychiatrist or if they are customers at the Insurance Company 'TopDanmark', join the project. They will be provided with detailed information about the project, the target group and the triage procedure.

Inclusion Criteria:

  • that they suffer from prolonged stress, and have been on sick leave for that reason in ½ -2 years
  • There is no other significant and untreated physical illness behind the symptoms
  • There is no other significant and untreated mental illness behind the symptoms, such as personality disorders, bipolar disorders, psychosis or a high degree of sociophobia

Exclusion Criteria:

  • Suicidal tendencies or abuse problems

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01849718

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University of Copenhagen
Copenhagen, Denmark
Sponsors and Collaborators
Anne Dahl Refshauge
University of Aarhus
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Principal Investigator: Ulrika K Stigsdotter, Professor University of Copenhagen
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Anne Dahl Refshauge, Phd, Assistant Professor, University of Copenhagen Identifier: NCT01849718    
Other Study ID Numbers: NEST-704171
First Posted: May 8, 2013    Key Record Dates
Last Update Posted: October 15, 2018
Last Verified: October 2018