Trial Outcomes & Findings for ECT Pulse Amplitude and Medial Temporal Lobe Engagement (NCT NCT02999269)

NCT ID: NCT02999269

Last Updated: 2023-07-24

Results Overview

Hamilton Depression Rating Scale - 24 item. Scores range from 0 to 76 (higher scores indicate more depression severity)

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

62 participants

Primary outcome timeframe

post-ECT Hamilton Depression Rating Scale -24 item. The time frame is 4 weeks after study initiation.

Results posted on

2023-07-24

Participant Flow

Participant milestones

Participant milestones
Measure
600 mA Right Unilateral ECT
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
700 mA Right Unilateral ECT
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
800 mA Right Unilateral ECT
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
Overall Study
STARTED
20
20
20
Overall Study
COMPLETED
16
15
16
Overall Study
NOT COMPLETED
4
5
4

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

ECT Pulse Amplitude and Medial Temporal Lobe Engagement

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
600 mA Right Unilateral ECT
n=16 Participants
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
700 mA Right Unilateral ECT
n=15 Participants
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
800 mA Right Unilateral ECT
n=16 Participants
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
Total
n=47 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Age, Categorical
Between 18 and 65 years
8 Participants
n=5 Participants
8 Participants
n=7 Participants
8 Participants
n=5 Participants
24 Participants
n=4 Participants
Age, Categorical
>=65 years
8 Participants
n=5 Participants
7 Participants
n=7 Participants
8 Participants
n=5 Participants
23 Participants
n=4 Participants
Age, Continuous
65 years
STANDARD_DEVIATION 8 • n=5 Participants
64 years
STANDARD_DEVIATION 7 • n=7 Participants
67 years
STANDARD_DEVIATION 10 • n=5 Participants
65 years
STANDARD_DEVIATION 8 • n=4 Participants
Sex: Female, Male
Female
12 Participants
n=5 Participants
9 Participants
n=7 Participants
11 Participants
n=5 Participants
32 Participants
n=4 Participants
Sex: Female, Male
Male
4 Participants
n=5 Participants
6 Participants
n=7 Participants
5 Participants
n=5 Participants
15 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants
n=5 Participants
5 Participants
n=7 Participants
5 Participants
n=5 Participants
15 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
11 Participants
n=5 Participants
10 Participants
n=7 Participants
11 Participants
n=5 Participants
32 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
2 Participants
n=4 Participants
Race (NIH/OMB)
White
15 Participants
n=5 Participants
14 Participants
n=7 Participants
15 Participants
n=5 Participants
44 Participants
n=4 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Region of Enrollment
United States
16 participants
n=5 Participants
15 participants
n=7 Participants
16 participants
n=5 Participants
47 participants
n=4 Participants
Hamilton Depression Rating Scale 24 items
37.0 units on a scale
STANDARD_DEVIATION 7.8 • n=5 Participants
38.0 units on a scale
STANDARD_DEVIATION 7.5 • n=7 Participants
33.8 units on a scale
STANDARD_DEVIATION 6.7 • n=5 Participants
36.3 units on a scale
STANDARD_DEVIATION 7.3 • n=4 Participants

PRIMARY outcome

Timeframe: post-ECT Hamilton Depression Rating Scale -24 item. The time frame is 4 weeks after study initiation.

Population: full longitudinal model with an unstructured repeated measures covariance matrix

Hamilton Depression Rating Scale - 24 item. Scores range from 0 to 76 (higher scores indicate more depression severity)

Outcome measures

Outcome measures
Measure
600 mA Right Unilateral ECT
n=16 Participants
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
700 mA Right Unilateral ECT
n=15 Participants
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
800 mA Right Unilateral ECT
n=16 Participants
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
Depression Severity
22.5 score on a scale
Standard Error 2.3
12.0 score on a scale
Standard Error 2.1
14.1 score on a scale
Standard Error 2.4

PRIMARY outcome

Timeframe: post-ECT Hopkins Verbal Learning Trial-Revised (percent retention score, range 0 - 100, higher is better). The time frame is 4 weeks after study initiation.

Hopkins Verbal Learning Trial-Revised (percent retention score, range 0 - 100, higher is better)

Outcome measures

Outcome measures
Measure
600 mA Right Unilateral ECT
n=16 Participants
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
700 mA Right Unilateral ECT
n=15 Participants
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
800 mA Right Unilateral ECT
n=16 Participants
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
Cognition
57.3 score on a scale
Standard Error 10
68 score on a scale
Standard Error 9
62 score on a scale
Standard Error 10

Adverse Events

600 mA Right Unilateral ECT

Serious events: 0 serious events
Other events: 5 other events
Deaths: 0 deaths

700 mA Right Unilateral ECT

Serious events: 0 serious events
Other events: 6 other events
Deaths: 0 deaths

800 mA Right Unilateral ECT

Serious events: 0 serious events
Other events: 6 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
600 mA Right Unilateral ECT
n=20 participants at risk
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
700 mA Right Unilateral ECT
n=20 participants at risk
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
800 mA Right Unilateral ECT
n=20 participants at risk
MECTA Spectrum 5000Q Amplitude MECTA Spectrum 5000Q Amplitude: Current
Nervous system disorders
headache
25.0%
5/20 • Number of events 10 • Each subject was evaluated for adverse effects over the 4-week study protocol.
30.0%
6/20 • Number of events 17 • Each subject was evaluated for adverse effects over the 4-week study protocol.
30.0%
6/20 • Number of events 17 • Each subject was evaluated for adverse effects over the 4-week study protocol.

Additional Information

Dr. Chris Abbott, Division Chief Neuromodulaton, Department of Psychiatry

University of New Mexico

Phone: 505272223

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place