NCT05480215

Brief Summary

Demonstrate safety and effectiveness of symptomatic action tremor relief in the treated hand following stimulation with the Cala Trio System using the Trio+ bands as compared to the Trio bands in adults with Essential Tremor (ET) and/or Parkinson's Disease (PD) over 2 weeks.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2021

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 7, 2021

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 16, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 16, 2021

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

July 26, 2022

Completed
3 days until next milestone

First Posted

Study publicly available on registry

July 29, 2022

Completed
Last Updated

July 29, 2022

Status Verified

July 1, 2022

Enrollment Period

2 months

First QC Date

July 26, 2022

Last Update Submit

July 27, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Tremor power changes from pre-stimulation to post-stimulation

    Tremor improvement was measured by Tremor Power Improvement Ratio (TPIR) using kinematic data collected by the device. The TPIR was calculated as pre-stimulation power divided by post-stimulation power, which was computed from device-collected accelerometer data

    baseline, pre-intervention and immediately after the intervention

Secondary Outcomes (3)

  • Change in TETRAS from pre-stimulation to post- stimulation within each visit

    baseline, pre-intervention and immediately after the intervention

  • Change in UPDRS Part III from pre-stimulation to post- stimulation within each visit

    baseline, pre-intervention and immediately after the intervention

  • Change in BF-ADL

    baseline, pre-intervention and immediately after the intervention

Study Arms (2)

Experimental: TAPS delivered by Cala device with Trio band

EXPERIMENTAL

Two 40-minute TAPS sessions daily for 14 days

Device: Cala Device

Experimental: TAPS delivered by Cala device with Trio+ band

EXPERIMENTAL

Two 40-minute TAPS sessions daily for 14 days

Device: Cala Device

Interventions

transcutaneous afferent patterned stimulation (TAPS)

Experimental: TAPS delivered by Cala device with Trio bandExperimental: TAPS delivered by Cala device with Trio+ band

Eligibility Criteria

Age22 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Must be ≥22 years of age
  • Competent and willing to provide written, informed consent to participate in the study
  • Willing to comply with study protocol requirements
  • For subjects with Essential Tremor:
  • A diagnosis of essential tremor
  • A tremor severity score of 2 or above in the dominant hand/arm as measured by one of the TETRAS upper limb postural tremor items
  • No significant alcohol intake within 8 hours prior to study visits
  • For subjects with Parkinson's Disease:
  • Dominant hand/arm exhibiting postural tremor ≥ 2 (while in the off state) as assessed by the MDS-UPDRS postural tremor score
  • Stable dose of Parkinson's disease medications, if applicable, for 30 days prior to study entry

You may not qualify if:

  • Implanted electrical medical device, such as a pacemaker, defibrillator, or deep brain stimulator
  • Suspected or diagnosed epilepsy or other seizure disorder
  • Any skin condition at the stimulation site that in the investigator's opinion should preclude participation in this study
  • Diagnosed with peripheral neuropathy affecting the tested upper extremity
  • Presence of any other neurodegenerative disease other than essential tremor or Parkinson's Disease
  • Subjects unable to communicate with the investigator and staff
  • Any health condition or concomitant medication that in the investigator's opinion should preclude participation in this study
  • Pregnancy or anticipated pregnancy during the course of the study
  • Botulinum toxin injection for hand tremor within 6 months prior to study enrollment
  • Are participating or have participated in another interventional clinical trial in the last 30 days which may confound the results of this study, unless approved by the Sponsor

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cala Clinic

San Mateo, California, 94404, United States

Location

MeSH Terms

Conditions

Essential TremorParkinson Disease

Condition Hierarchy (Ancestors)

Movement DisordersCentral Nervous System DiseasesNervous System DiseasesParkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesSynucleinopathiesNeurodegenerative Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 26, 2022

First Posted

July 29, 2022

Study Start

October 7, 2021

Primary Completion

December 16, 2021

Study Completion

December 16, 2021

Last Updated

July 29, 2022

Record last verified: 2022-07

Locations