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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05480215
Other study ID # ET-22
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date October 7, 2021
Est. completion date December 16, 2021

Study information

Verified date July 2022
Source Cala Health, Inc.
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial 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.


Description:

20 patients with (13 with ET and 7 with PD) with at least mild postural tremor were enrolled in a prospective, single-center, two-arm, crossover study that took place over the course of four weeks. TAPS devices were shipped to patients to run the study remotely. In the first arm of the study, subjects received TAPS treatment using the original. Cala Trio band for two weeks. Followed by a wash-out period (> 24 hours), subjects entered the second arm and received TAPS using the Trio+ band for an additional two weeks. Unsupervised motion assessments were captured at home, and at the beginning and end of the four weeks by telemedicine.


Recruitment information / eligibility

Status Completed
Enrollment 20
Est. completion date December 16, 2021
Est. primary completion date December 16, 2021
Accepts healthy volunteers No
Gender All
Age group 22 Years and older
Eligibility Inclusion Criteria: - 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 Exclusion Criteria: - 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

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Cala Device
transcutaneous afferent patterned stimulation (TAPS)

Locations

Country Name City State
United States Cala Clinic San Mateo California

Sponsors (1)

Lead Sponsor Collaborator
Cala Health, Inc.

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary 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 Change in TETRAS from pre-stimulation to post- stimulation within each visit For subjects with Essential Tremor only: Tremor Research Group Essential Tremor Rating Assessment Scale (TETRAS) subset score, relevant to the stimulated upper limb, change from pre-stimulation to post- stimulation within each visit baseline, pre-intervention and immediately after the intervention
Secondary Change in UPDRS Part III from pre-stimulation to post- stimulation within each visit For subjects with Parkinson's Disease only: Modified Movement Disorder Society Unified Parkinson's Disease Rating Scale Part III (MDS-UPDRS) subset score, change from pre- stimulation to post-stimulation within each visit baseline, pre-intervention and immediately after the intervention
Secondary Change in BF-ADL Change in the Bain & Findley activities of daily living (BF-ADL) score from pre- to post-stimulation at each of the two study visits associated with the Trio and Trio+ bands (four study visits total) baseline, pre-intervention and immediately after the intervention
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