NCT07044323

Brief Summary

After amputation of an arm or leg, up to 90% of subjects experience a "phantom limb", a phenomenon characterized by persistent feelings of the missing limb. Many subjects with a phantom limb experience intense pain in the missing extremity that is often poorly responsive to medications or other interventions. The study will explore the feasibility and efficacy of a home-based, active VR treatment for phantom limb pain (PLP).

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
44

participants targeted

Target at P25-P50 for not_applicable

Timeline
1mo left

Started Jun 2025

Geographic Reach
1 country

3 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress93%
Jun 2025May 2026

Study Start

First participant enrolled

June 16, 2025

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

June 23, 2025

Completed
7 days until next milestone

First Posted

Study publicly available on registry

June 30, 2025

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2026

Last Updated

August 8, 2025

Status Verified

August 1, 2025

Enrollment Period

12 months

First QC Date

June 23, 2025

Last Update Submit

August 7, 2025

Conditions

Keywords

painphantom limblower limb amputationtreatment

Outcome Measures

Primary Outcomes (2)

  • Changes in pain intensity

    the change in phantom limb pain score pre and post each VR intervention, at baseline, after the VR intervention and in the follow-up sessions as assessed using an 11-point numerical rating pain scale (0 - minimum score/no pain; 10 maximum score/pain as bad as you can imagine) assessing the current PLP level.

    pre each intervention (8 sessions); immediately after each intervention (8 session); baseline, pre-intervention; immediately after the end of the intervention; 1 week after the end of the intervention; 8 weeks after the end of the intervention.

  • Changes in pain quality of the McGill Short Form Questionnaire

    The change in the phantom limb pain quality between baseline, post-intervention, and follow-up sessions using McGill Short Form Questionnaire that measures the characteristics of pain (e.g., throbbing, etc.) using a 4-point rating pain scale (0 - minimum score - none: better outcome /4 maximum score - severe: worse outcome).

    baseline, pre-intervention; immediately after the end of the intervention; 1 week after the end of the intervention; 8 weeks after the end of the intervention

Secondary Outcomes (1)

  • Changes in average pain after the treatment

    up to 4 weeks

Other Outcomes (12)

  • Changes in daily activities after the treatment

    baseline, pre-intervention; immediately after the end of the intervention; 1 week after the end of the intervention; 8 weeks after the end of the intervention

  • Changes in quality of life after the treatment

    baseline, pre-intervention; immediately after the end of the intervention; 1 week after the end of the intervention; 8 weeks after the end of the intervention

  • Changes in pain interference after the treatment

    baseline, pre-intervention; immediately after the end of the intervention; 1 week after the end of the intervention; 8 weeks after the end of the intervention

  • +9 more other outcomes

Study Arms (1)

Home-based treatment

EXPERIMENTAL

Self-administered Active Virtual Reality treatment

Behavioral: Active Virtual Reality Treatment

Interventions

The self-administered active VR treatment will consist of 8 twice-weekly sessions, each approximately 1 hour in duration, during which subjects will participate in a variety of Virtual Reality active games that require leg movements while receiving high-quality visual feedback of the missing lower leg.

Home-based treatment

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18 -100
  • Capacity to provide Informed Consent
  • Unilateral above or below knee amputation more than 3 months prior to enrollment
  • Absence of cognitive impairment, operationally defined as a Montreal Cognitive Assessment score of 18 or greater1.
  • Pain averaged over the preceding 1 month in the phantom limb rated as greater than 4 on a scale of 0-10.

You may not qualify if:

  • History of significant medical or neurological disorder such as stroke or moderate to severe traumatic brain injury (operationally defined as loss of consciousness for more than 30 minutes)
  • History of significant or poorly controlled psychiatric disorders
  • Substantial depression or anxiety affecting their ability to perform tasks necessary for the study.
  • Current abuse of alcohol or drugs, prescription or otherwise
  • Nursing a child, pregnant, or intent to become pregnant during the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Jefferson Moss Rehabilitation Research Institute

Philadelphia, Pennsylvania, 19027, United States

RECRUITING

University of Pennsylvania

Philadelphia, Pennsylvania, 19122, United States

RECRUITING

University of Washington

Seattle, Washington, 98195, United States

RECRUITING

Related Publications (8)

  • Slater M, Steed A, McCarthy J, Maringelli F. The influence of body movement on subjective presence in virtual environments. Hum Factors. 1998 Sep;40(3):469-77. doi: 10.1518/001872098779591368.

    PMID: 9849105BACKGROUND
  • Bastien CH, Vallieres A, Morin CM. Validation of the Insomnia Severity Index as an outcome measure for insomnia research. Sleep Med. 2001 Jul;2(4):297-307. doi: 10.1016/s1389-9457(00)00065-4.

    PMID: 11438246BACKGROUND
  • Zigmond AS, Snaith RP. The hospital anxiety and depression scale. Acta Psychiatr Scand. 1983 Jun;67(6):361-70. doi: 10.1111/j.1600-0447.1983.tb09716.x.

    PMID: 6880820BACKGROUND
  • Goller AI, Richards K, Novak S, Ward J. Mirror-touch synaesthesia in the phantom limbs of amputees. Cortex. 2013 Jan;49(1):243-51. doi: 10.1016/j.cortex.2011.05.002. Epub 2011 Jun 22.

    PMID: 22981809BACKGROUND
  • Cleeland CS, Ryan KM. Pain assessment: global use of the Brief Pain Inventory. Ann Acad Med Singap. 1994 Mar;23(2):129-38.

    PMID: 8080219BACKGROUND
  • Ware J Jr, Kosinski M, Keller SD. A 12-Item Short-Form Health Survey: construction of scales and preliminary tests of reliability and validity. Med Care. 1996 Mar;34(3):220-33. doi: 10.1097/00005650-199603000-00003.

    PMID: 8628042BACKGROUND
  • Holbrook M, Skilbeck CE. An activities index for use with stroke patients. Age Ageing. 1983 May;12(2):166-70. doi: 10.1093/ageing/12.2.166.

    PMID: 6869117BACKGROUND
  • Melzack R. The short-form McGill Pain Questionnaire. Pain. 1987 Aug;30(2):191-197. doi: 10.1016/0304-3959(87)91074-8.

    PMID: 3670870BACKGROUND

MeSH Terms

Conditions

PainPhantom Limb

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsPerceptual DisordersNeurobehavioral ManifestationsNervous System DiseasesPain, PostoperativePostoperative ComplicationsPathologic Processes

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

June 23, 2025

First Posted

June 30, 2025

Study Start

June 16, 2025

Primary Completion (Estimated)

May 31, 2026

Study Completion (Estimated)

May 31, 2026

Last Updated

August 8, 2025

Record last verified: 2025-08

Locations