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Not yet recruitingNCT07059390TGIFUpdated Mar 23, 2026

Concurrent Trials on Nature-Based Therapy for Inpatients in Dementia and Rehabilitation Medicine Wards

An interventional study of Nature Immersion Therapy in Dementia and Acquired Brain Injury Including Stroke, sponsored by Changi General Hospital. Not yet recruiting at 1 site in Singapore. Open to participants aged 21 Years to 100 Years. Per ClinicalTrials.gov, last updated 2026-03-23.

Sponsored by Changi General Hospital · Not applicable, Interventional, and Health services research

Phase
Not applicable
Study type
Interventional
Enrollment
1,600
Allocation
Randomized
Ages
21 Years to 100 Years
Sex
All
01

Study summary

Nature-based Therapy, such as forest bathing and horticultural therapy, has been shown to have physical, psychological and emotional health benefits. We posit that personalised and guided Nature-based Therapy, which leverages the benefits of therapeutic gardens in an urban hospital setting, improves the overall wellbeing of elderly inpatients with dementia (aged >65 years old) and their caregivers, as well as patients undergoing inpatient rehabilitation. To determine the effectiveness of Nature-based Therapy for these two inpatient populations, we designed a pilot study, TGIF, to be conducted at the dementia and rehabilitation medicine wards at Changi General Hospital in Singapore.

Read the detailed description

TGIF consists of two concurrent trials targeting two patient populations: elderly inpatients with dementia admitted to the dementia ward, and inpatients undergoing inpatient rehabilitation at the rehabilitation wards in a tertiary teaching hospital in Singapore. At the dementia wards, we aim to determine if Nature-based Therapy improved the neuropsychiatric symptoms such as agitation, restlessness and aggression among elderly inpatients living with cognitive impairment, defined as either delirium or dementia or both. Concurrent with the improved neuropsychiatric symptoms, the study team will also study the improved quality of life among the family, caregivers and hence reduced caregiver burden. At the rehabilitation medicine wards, we aim to determine if Nature-based Therapy improves mood, physical function, and quality of life.

02

Conditions studied

  • Dementia
  • Acquired Brain Injury Including Stroke

Keywords

  • Dementia
  • Stroke
  • Traumatic Brain Injury
  • Delirium
  • Nature-Based Therapy
03

In context

Dementia

2,372 studies on the registry are indexed under Dementia; 574 are open to participants now.

This study's planned enrollment of 1,600 is above the median of 90 across 1,758 interventional studies indexed under Dementia.

Browse Dementia studies →

Lead sponsor

Changi General Hospital is the lead sponsor of 101 studies on the registry; 18 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years to 100 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Patients with dementia:

  1. Age 65-100 years old
  2. Have a diagnosis of delirium/ dementia or both.
  3. Have diagnosis of dementia with and without behavioural symptoms of dementia (BPSD)
  4. Ability to communicate with the Nature-based Therapist (in languages such as English, Mandarin Chinese, Chinese dialects or Malay)
  5. Manageable behavioural symptoms and able to focus attention for minimum of 30 minutes

Rehabilitation Medicine patients:

  1. Age 21-100 years old
  2. Acquired brain injury with residual impairments, which can be either in the i) motor, and/or ii) cognitive domains, and/or iii) suspected or diagnosed mood disorders (including adjustment disorder, depression and anxiety disorders) -patients would then be stratified according to the category(s) of impairments both for consideration of interventions and for outcome measures/analysis
  3. Additional Physical/Cognitive Criteria required will depend on range of specific therapeutic activities that could be prescribed/administered (eg.at least 1 upper limb with Manual Muscle Testing (MMT) of at least 3/5, with ability for active grasp/release, ability to sustain attention for the duration of the session, cognitive Functional Independence Measure (FIM) score of at least 25 points etc)

Exclusion criteria

Exclusion Criteria:

  1. In isolation due to contact, droplet or airborne precautions
  2. Unable to provide consent and lack of surrogate decision maker to provide consent
  3. Poorly managed psychiatric or behaviour symptoms with threats to others surrounding them.
  4. Age \< 21 years
  5. Patients who are haemodynamically unstable.
  6. Patients on strict bed rest
05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Care provider, Investigator, Outcomes assessor)
Enrollment
1,600 participants (estimated)

Study arms

  • Experimental
    Dementia Patients - Intervention

    Patients with dementia who undergo Nature Immersion Therapy

    Behavioral: Nature Immersion Therapy

  • No intervention
    Dementia Patients - Control

    Patients with dementia who do not undergo Nature Immersion Therapy

  • Experimental
    Rehabilitation Patients - Intervention

    Rehabilitation patients who undergo Nature Immersion Therapy

    Behavioral: Nature Immersion Therapy

  • No intervention
    Rehabilitation Patients - Control

    Rehabilitation patients who do not undergo Nature Immersion Therapy

Interventions

  • BehavioralNature Immersion Therapy

    During the length of inpatient stay at Changi General Hospital (CGH), which ranges from 5 to 10 days, the patients and caregivers will be enrolled for a set of 3 nature-based sessions. Each session will be conducted in groups of 4 to 6 patients incorporating a relational multi-sensory experience as well as mind-body connectedness while spending time in nature. Each of the 3 sessions will be 45 minutes each. The nature-based therapy/green social prescription plan will be conducted in groups guided by a trained CGH staff (Allied Health Professionals/Nurse). This Green social prescribing plan (Playbook) will be integrated into inpatient's care plan. Caregivers of the enrolled patients will also be part of the therapy group following the necessary consent.

06

What researchers measure

Primary outcomes

  1. Pittsburg Agitation Scale

    The Pittsburgh Agitation Scale (PAS) is a quick, observational tool used to assess the severity of agitation in dementia patients, focusing on four behavioral dimensions: aberrant vocalizations, motor agitation, aggressiveness, and resistance to care

    Time frame: Baseline and at the end of intervention, an average 7 days

  2. DASS-21

    The DASS-21 (Depression, Anxiety, and Stress Scale - 21 Items) is a self-report questionnaire designed to measure the severity of symptoms related to depression, anxiety, and stress in adults. It consists of 21 questions, with seven questions for each of the three scales: depression, anxiety, and stress.

    Time frame: Baseline and at the end of intervention, an average of 7 days

Secondary outcomes

  1. EQ-5D-5L

    The EQ-5D-5L is a generic, self-completed questionnaire that assesses health-related quality of life (HRQoL) across five dimensions (mobility, self-care, usual activities, pain/discomfort, and anxiety/depression) with five levels of severity for each dimension, and includes a visual analogue scale (EQ VAS).

    Time frame: Baseline and at the end of intervention, an average of 7 days

  2. Zarit Burden Interview

    The Zarit Burden Interview (ZBI) is a widely used tool to assess the level of caregiver burden experienced by individuals who care for people with chronic illnesses. It is a self-report questionnaire that evaluates the physical, emotional, and social impact of caregiving on the caregiver's well-being.

    Time frame: Baseline and at the end of intervention, an average of 7 days

07

Study locations

1 site
08

References and documents

Publications

  • Hansen MM, Jones R, Tocchini K. Shinrin-Yoku (Forest Bathing) and Nature Therapy: A State-of-the-Art Review. Int J Environ Res Public Health. 2017 Jul 28;14(8):851. doi: 10.3390/ijerph14080851. PubMed 28788101 ↗
  • Vibholm AP, Christensen JR, Pallesen H. Nature-based rehabilitation for adults with acquired brain injury: a scoping review. Int J Environ Health Res. 2020 Dec;30(6):661-676. doi: 10.1080/09603123.2019.1620183. Epub 2019 May 27. PubMed 31131619 ↗
  • Ng KST, Sia A, Ng MKW, Tan CTY, Chan HY, Tan CH, Rawtaer I, Feng L, Mahendran R, Larbi A, Kua EH, Ho RCM. Effects of Horticultural Therapy on Asian Older Adults: A Randomized Controlled Trial. Int J Environ Res Public Health. 2018 Aug 9;15(8):1705. doi: 10.3390/ijerph15081705. PubMed 30096932 ↗
  • Howarth M, Brettle A, Hardman M, Maden M. What is the evidence for the impact of gardens and gardening on health and well-being: a scoping review and evidence-based logic model to guide healthcare strategy decision making on the use of gardening approaches as a social prescription. BMJ Open. 2020 Jul 19;10(7):e036923. doi: 10.1136/bmjopen-2020-036923. PubMed 32690529 ↗
  • Antonelli M, Barbieri G, Donelli D. Effects of forest bathing (shinrin-yoku) on levels of cortisol as a stress biomarker: a systematic review and meta-analysis. Int J Biometeorol. 2019 Aug;63(8):1117-1134. doi: 10.1007/s00484-019-01717-x. Epub 2019 Apr 18. PubMed 31001682 ↗
  • Li Q. Effect of forest bathing trips on human immune function. Environ Health Prev Med. 2010 Jan;15(1):9-17. doi: 10.1007/s12199-008-0068-3. PubMed 19568839 ↗
  • Siah CJR, Goh YS, Lee J, Poon SN, Ow Yong JQY, Tam WW. The effects of forest bathing on psychological well-being: A systematic review and meta-analysis. Int J Ment Health Nurs. 2023 Aug;32(4):1038-1054. doi: 10.1111/inm.13131. Epub 2023 Mar 2. PubMed 36864583 ↗
  • Kavanaugh J, Hardison ME, Rogers HH, White C, Gross J. Assessing the Impact of a Shinrin-Yoku (Forest Bathing) Intervention on Physician/Healthcare Professional Burnout: A Randomized, Controlled Trial. Int J Environ Res Public Health. 2022 Nov 4;19(21):14505. doi: 10.3390/ijerph192114505. PubMed 36361384 ↗

Individual participant data

Plan to share: No — The dataset is restricted due to ethical limitations.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 23, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07059390
Responsible party
Sponsor
First posted
Jul 10, 2025
Start date
May 2027 (estimated)
Primary completion
Jun 2028 (estimated)
Completion
Aug 2028 (estimated)
Last update
Mar 23, 2026

Study contacts

Si Ching Lim
Contact
lim.si.ching@singhealth.com.sg
(65) 6426 7818
Si Ching Lim, MD
principal investigator · Changi General Hospital

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Mar 2025. You cannot join it, but the record below documents what was studied.

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