Trial Outcomes & Findings for A Study of Blood Pressure and Blood Supply to the Brain in Persons With a Spinal Cord Injury. (NCT NCT00248807)

NCT ID: NCT00248807

Last Updated: 2025-02-25

Results Overview

Systolic blood pressure during head-up tilt in subjects with spinal cord injury without drug intervention

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

30 participants

Primary outcome timeframe

acute testing

Results posted on

2025-02-25

Participant Flow

Recruitment has been completed.

All subjects recruited completed all testing procedures.

Participant milestones

Participant milestones
Measure
Subjects With Spinal Cord Injury (SCI)
Subjects with SCI underwent a 45 degree head-up tilt maneuver to lower blood pressure and measure cerebral blood flow with and without enalaprilat (1.25 mg).
Subjects Without SCI (Non-SCI)
Subjects without SCI (non-SCI) underwent a 45 degree head-up tilt maneuver to lower blood pressure and measure cerebral blood flow with and without enalaprilat (1.25 mg).
Overall Study
STARTED
19
11
Overall Study
COMPLETED
19
11
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

A Study of Blood Pressure and Blood Supply to the Brain in Persons With a Spinal Cord Injury.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Subjects With Spinal Cord Injury
n=19 Participants
Subjects with spinal cord injury underwent a 45 degree head-up tilt maneuver to lower blood pressure and monitor cerebral blood flow on 2 study visits. The first visit subject underwent the head-up tilt maneuver without drug and on the second visits subject underwent the head-up tilt maneuver following oral administration of an angiotensin converting enzyme inhibitor (ACE: 1.25 mg enalaprilat).
Non-spinal Cord Injured Subjects
n=11 Participants
Non-spinal cord injured subjects underwent a 45 degree head-up tilt maneuver to lower blood pressure and monitor cerebral blood flow on 2 study visits. The first visit subject underwent the head-up tilt maneuver without drug and on the second visits subject underwent the head-up tilt maneuver following oral administration of an angiotensin converting enzyme inhibitor (ACE: 1.25 mg enalaprilat).
Total
n=30 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
Age, Categorical
Between 18 and 65 years
19 Participants
n=5 Participants
11 Participants
n=7 Participants
30 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Continuous
41 years
STANDARD_DEVIATION 11 • n=5 Participants
35 years
STANDARD_DEVIATION 12 • n=7 Participants
39 years
STANDARD_DEVIATION 12 • n=5 Participants
Sex: Female, Male
Female
3 Participants
n=5 Participants
2 Participants
n=7 Participants
5 Participants
n=5 Participants
Sex: Female, Male
Male
16 Participants
n=5 Participants
9 Participants
n=7 Participants
25 Participants
n=5 Participants
Region of Enrollment
United States
19 participants
n=5 Participants
11 participants
n=7 Participants
30 participants
n=5 Participants

PRIMARY outcome

Timeframe: acute testing

Population: convenience sample

Systolic blood pressure during head-up tilt in subjects with spinal cord injury without drug intervention

Outcome measures

Outcome measures
Measure
ARM 3
n=19 Participants
45 degree head-up tilt to lower blood pressure and measure cerebral blood flow in subjects with spinal cord injury following intravenous administration of an angiotensin converting enzyme inhibitor (1.25 mg enalaprilat).
ARM 1
n=19 Participants
45 degree head-up tilt to lower blood pressure and measure cerebral blood flow in subjects with spinal cord injury without drug
ARM 2
n=11 Participants
45 degree head-up tilt to lower blood pressure and measure cerebral blood flow in able-bodied control subjects without drug
ARM 4
n=11 Participants
45 degree head-up tilt to lower blood pressure and measure cerebral blood flow in able-bodied control subjects following intravenous administration of an angiotensin converting enzyme inhibitor (1.25 mg enalaprilat).
Systolic Blood Pressure
119 mmHg
Standard Deviation 26
123 mmHg
Standard Deviation 37
125 mmHg
Standard Deviation 15
122 mmHg
Standard Deviation 14

SECONDARY outcome

Timeframe: acute testing

Measurement of middle cerebral artery blood flow velocity supine and during head-up tilt

Outcome measures

Outcome measures
Measure
ARM 3
n=19 Participants
45 degree head-up tilt to lower blood pressure and measure cerebral blood flow in subjects with spinal cord injury following intravenous administration of an angiotensin converting enzyme inhibitor (1.25 mg enalaprilat).
ARM 1
n=19 Participants
45 degree head-up tilt to lower blood pressure and measure cerebral blood flow in subjects with spinal cord injury without drug
ARM 2
n=11 Participants
45 degree head-up tilt to lower blood pressure and measure cerebral blood flow in able-bodied control subjects without drug
ARM 4
n=11 Participants
45 degree head-up tilt to lower blood pressure and measure cerebral blood flow in able-bodied control subjects following intravenous administration of an angiotensin converting enzyme inhibitor (1.25 mg enalaprilat).
Cerebral Blood Flow
46.93 cm/sec
Standard Deviation 7.66
45.95 cm/sec
Standard Deviation 8.71
42.52 cm/sec
Standard Deviation 15.69
37.38 cm/sec
Standard Deviation 4.44

Adverse Events

ARM 1

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

ARM 2

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

ARM 3

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

ARM 4

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

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr. Jill M. Wecht; Principal Investigator

James J Peters VAMC

Phone: 718 584-9000

Results disclosure agreements

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