Trial Outcomes & Findings for High Frequency Oscillation in Pediatric Epilepsy Surgery (NCT NCT03790280)

NCT ID: NCT03790280

Last Updated: 2023-09-01

Results Overview

The primary outcome measure is the number of patients seizure-free after surgery in the treatment arm of combined HFO and standard of care, compared to the number of patients seizure-free in the control arm of standard of care alone, at 1 year after surgery.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

17 participants

Primary outcome timeframe

1 year after surgery

Results posted on

2023-09-01

Participant Flow

Participant milestones

Participant milestones
Measure
Standard of Care PLUS HFO
Surgery is tailored by HFOs and standard ECoG interpretation (spikes on intra-operative ECoG or seizure onset on extra-operative ECoG) (arm 1). HFO analysis: We hypothesize that the strategy of incorporating HFO data to a standard ECoG-guided resection in pediatric epilepsy surgery will result in improved postoperative seizure outcome than the traditional approach.
Standard of Care
Surgery is tailored by standard ECoG alone (arm 2).
Overall Study
STARTED
8
9
Overall Study
COMPLETED
7
9
Overall Study
NOT COMPLETED
1
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

High Frequency Oscillation in Pediatric Epilepsy Surgery

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Standard of Care PLUS HFO
n=8 Participants
Surgery is tailored by HFOs and standard ECoG interpretation (spikes on intra-operative ECoG or seizure onset on extra-operative ECoG) (arm 1). HFO analysis: We hypothesize that the strategy of incorporating HFO data to a standard ECoG-guided resection in pediatric epilepsy surgery will result in improved postoperative seizure outcome than the traditional approach.
Standard of Care
n=9 Participants
Surgery is tailored by standard ECoG alone (arm 2).
Total
n=17 Participants
Total of all reporting groups
Age, Categorical
<=18 years
6 Participants
n=93 Participants
7 Participants
n=4 Participants
13 Participants
n=27 Participants
Age, Categorical
Between 18 and 65 years
2 Participants
n=93 Participants
2 Participants
n=4 Participants
4 Participants
n=27 Participants
Age, Categorical
>=65 years
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Sex: Female, Male
Gender · Female
5 Participants
n=93 Participants
5 Participants
n=4 Participants
10 Participants
n=27 Participants
Sex: Female, Male
Gender · Male
3 Participants
n=93 Participants
4 Participants
n=4 Participants
7 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=93 Participants
3 Participants
n=4 Participants
4 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants
n=93 Participants
6 Participants
n=4 Participants
13 Participants
n=27 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
Asian
2 Participants
n=93 Participants
2 Participants
n=4 Participants
4 Participants
n=27 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=93 Participants
0 Participants
n=4 Participants
2 Participants
n=27 Participants
Race (NIH/OMB)
White
4 Participants
n=93 Participants
7 Participants
n=4 Participants
11 Participants
n=27 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants

PRIMARY outcome

Timeframe: 1 year after surgery

The primary outcome measure is the number of patients seizure-free after surgery in the treatment arm of combined HFO and standard of care, compared to the number of patients seizure-free in the control arm of standard of care alone, at 1 year after surgery.

Outcome measures

Outcome measures
Measure
Standard of Care PLUS HFO
n=8 Participants
Surgery is tailored by HFOs and standard ECoG interpretation (spikes on intra-operative ECoG or seizure onset on extra-operative ECoG) (arm 1). HFO analysis: We hypothesize that the strategy of incorporating HFO data to a standard ECoG-guided resection in pediatric epilepsy surgery will result in improved postoperative seizure outcome than the traditional approach.
Standard of Care
n=9 Participants
Surgery is tailored by standard ECoG alone (arm 2).
Post-operative Seizure-free Rate
Seizure Free at 1 year post surgery
4 Participants
5 Participants
Post-operative Seizure-free Rate
Seizure Relapse at 1 year post surgery
4 Participants
4 Participants

SECONDARY outcome

Timeframe: 1 year after surgery

Number of participants experiencing surgical complications

Outcome measures

Outcome measures
Measure
Standard of Care PLUS HFO
n=7 Participants
Surgery is tailored by HFOs and standard ECoG interpretation (spikes on intra-operative ECoG or seizure onset on extra-operative ECoG) (arm 1). HFO analysis: We hypothesize that the strategy of incorporating HFO data to a standard ECoG-guided resection in pediatric epilepsy surgery will result in improved postoperative seizure outcome than the traditional approach.
Standard of Care
n=9 Participants
Surgery is tailored by standard ECoG alone (arm 2).
Post-operative Complication
0 Participants
0 Participants

Adverse Events

Standard of Care PLUS HFO

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Standard of Care

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Standard of Care PLUS HFO
n=8 participants at risk
The primary outcome measure is the number of patients seizure-free after surgery in the treatment arm of combined HFO and standard of care, compared to the number of patients seizure-free in the control arm of standard of care alone, at 1 year after surgery.
Standard of Care
n=9 participants at risk
Surgery is tailored by standard ECoG alone (arm 2).
Injury, poisoning and procedural complications
Subdural Hematoma
12.5%
1/8 • Number of events 1 • Adverse events were collected post-operatively for up to 1 year.
0.00%
0/9 • Adverse events were collected post-operatively for up to 1 year.

Additional Information

Angela Martinez, Research Manager

University of California, Los Angeles (UCLA)

Phone: 310-206-7630

Results disclosure agreements

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