Trial Outcomes & Findings for Angiotensin II in General Anesthesia (NCT NCT03733145)

NCT ID: NCT03733145

Last Updated: 2025-08-24

Results Overview

The median dose required to increase the SBP in these 3 cohorts with essential hypertension (ACE inhibitor, ARB, or those on another class of hypertensive agents) to within 5% of baseline or higher will be calculated.

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

32 participants

Primary outcome timeframe

up to 1 hour

Results posted on

2025-08-24

Participant Flow

Participant milestones

Participant milestones
Measure
Participants on ACE Inhibitors
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Overall Study
STARTED
10
11
11
Overall Study
COMPLETED
7
8
9
Overall Study
NOT COMPLETED
3
3
2

Reasons for withdrawal

Reasons for withdrawal
Measure
Participants on ACE Inhibitors
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Overall Study
screenfail
3
3
2

Baseline Characteristics

Angiotensin II in General Anesthesia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Participants on ACE Inhibitors
n=7 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=9 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Total
n=24 Participants
Total of all reporting groups
Age, Continuous
57.25 years
STANDARD_DEVIATION 6.16 • n=99 Participants
67.75 years
STANDARD_DEVIATION 5.87 • n=107 Participants
67.22 years
STANDARD_DEVIATION 6.76 • n=206 Participants
65.29 years
STANDARD_DEVIATION 7.16 • n=157 Participants
Sex: Female, Male
Female
3 Participants
n=99 Participants
4 Participants
n=107 Participants
4 Participants
n=206 Participants
11 Participants
n=157 Participants
Sex: Female, Male
Male
4 Participants
n=99 Participants
4 Participants
n=107 Participants
5 Participants
n=206 Participants
13 Participants
n=157 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=157 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants
n=99 Participants
8 Participants
n=107 Participants
9 Participants
n=206 Participants
24 Participants
n=157 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=157 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=157 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=157 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=157 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=99 Participants
1 Participants
n=107 Participants
2 Participants
n=206 Participants
4 Participants
n=157 Participants
Race (NIH/OMB)
White
6 Participants
n=99 Participants
6 Participants
n=107 Participants
7 Participants
n=206 Participants
19 Participants
n=157 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=157 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
1 Participants
n=107 Participants
0 Participants
n=206 Participants
1 Participants
n=157 Participants

PRIMARY outcome

Timeframe: up to 1 hour

Population: ACE Inhibitor Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol ARB Arm: 2 patients did not reach the treatment goal in this group and were therefore excluded from primary outcome analysis Other Classes of Antihypertensive Agents Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

The median dose required to increase the SBP in these 3 cohorts with essential hypertension (ACE inhibitor, ARB, or those on another class of hypertensive agents) to within 5% of baseline or higher will be calculated.

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=6 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Dose Required to Increase the Systolic Blood Pressure (SBP)
35 ng/kg/min
Interval 35.0 to 45.0
43 ng/kg/min
Interval 31.0 to 54.0
45 ng/kg/min
Interval 34.0 to 45.0

SECONDARY outcome

Timeframe: up to 1 hour

Population: ACE Inhibitor Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Bradykinin 1-8

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Bradykinin 1-8
127043 pmol/L
Interval 103938.0 to 180738.0
105405 pmol/L
Interval 71387.0 to 122527.0
101169 pmol/L
Interval 75851.0 to 130402.0

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitor Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Bradykinin 1-7

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Bradykinin 1-7
24457 pmol/L
Interval 19026.0 to 35010.0
19335 pmol/L
Interval 11044.0 to 36966.0
17438 pmol/L
Interval 11906.0 to 25482.0

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitor Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Bradykinin 1-5

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Bradykinin 1-5
2341 pmol/L
Interval 1483.0 to 4095.0
353 pmol/L
Interval 249.0 to 605.0
375 pmol/L
Interval 251.0 to 534.0

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitor Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Aldosterone

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Aldosterone
293 pmol/L
Interval 223.0 to 362.0
293 pmol/L
Interval 223.0 to 362.0
230 pmol/L
Interval 168.0 to 308.0

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitor Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Angiotensin I

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Angiotensin I
8.7 pmol/L
Interval 0.0 to 37.9
1.8 pmol/L
Interval 0.0 to 16.7
0 pmol/L
Interval 0.0 to 6.3

SECONDARY outcome

Timeframe: up to 1 hour

Population: ACE Inhibitors Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Angiotensin II

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Angiotensin II
10.9 pmol/L
Interval 3.7 to 370.1
31.2 pmol/L
Interval 5.0 to 758.5
10.2 pmol/L
Interval 0.0 to 326.2

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitors Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Angiotensin IV

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Angiotensin IV
0 pmol/L
Interval 0.0 to 11.0
1 pmol/L
Interval 0.0 to 18.7
0 pmol/L
Interval 0.0 to 8.2

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitors Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Angiotensin 1-7

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Angiotensin 1-7
8.7 pmol/L
Interval 0.0 to 37.9
1.8 pmol/L
Interval 0.0 to 16.7
0 pmol/L
Interval 0.0 to 6.3

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitors Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Angiotensin 1-5

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Angiotensin 1-5
0 pmol/L
Interval 0.0 to 0.0
0 pmol/L
Interval 0.0 to 28.8
0 pmol/L
Interval 0.0 to 0.0

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitors Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Angiotensin 1-9

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Angiotensin 1-9
0 pmol/L
Interval 0.0 to 0.0
0 pmol/L
Interval 0.0 to 0.0
0 pmol/L
Interval 0.0 to 0.0

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitors Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Angiotensin 2-10

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Angiotensin 2-10
0 pmol/L
Interval 0.0 to 5.8
0 pmol/L
Interval 0.0 to 0.0
0 pmol/L
Interval 0.0 to 0.0

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitors Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Angiotensin 2-7

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Angiotensin 2-7
0 pmol/L
Interval 0.0 to 0.0
0 pmol/L
Interval 0.0 to 0.0
0 pmol/L
Interval 0.0 to 0.0

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitors Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol Other Classes of Antihypertensive Agents: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol

Median serum level of Angiotensin 3-7

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=5 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Angiotensin 3-7
0 pmol/L
Interval 0.0 to 2.33
0 pmol/L
Interval 0.0 to 0.0
0 pmol/L
Interval 0.0 to 0.0

SECONDARY outcome

Timeframe: Up to 1 hour

Population: ACE Inhibitors Arm: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol, 2 patients unable to get sample. ARBs Arm: 1 patient unable to get sample. Other Classes of Antihypertensive Agents: 2 patients did not experience hypotension and therefore did not receive the Ang II per protocol, 2 patients unable to get sample.

Median serum level of Angiotensin 1-12

Outcome measures

Outcome measures
Measure
Participants on ACE Inhibitors
n=3 Participants
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=7 Participants
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=5 Participants
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Median Serum Level of Angiotensin 1-12
940 pmol/L
Interval 788.0 to 982.0
1011 pmol/L
Interval 846.0 to 1138.0
674 pmol/L
Interval 344.0 to 1043.0

Adverse Events

Participants on ACE Inhibitors

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

Participants on ARBs

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Other Classes of Antihypertensive Agents

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
Participants on ACE Inhibitors
n=5 participants at risk
Participants taking ACE inhibitors (angiotensin-converting enzyme inhibitors)will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Participants on ARBs
n=8 participants at risk
Participants taking ARBs (angiotensin-receptor blockers) will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Other Classes of Antihypertensive Agents
n=7 participants at risk
Participants taking any other class of Antihypertensive Agents will be placed into this group. Intervention: Drug: Angiotensin II. Angiotensin II: Participants in the ACE inhibitors, ARBs, and Other Classes of Antihypertensive Agents who's systolic blood pressure (SBP) is less than 80% of the baseline reading is detected, will have Ang II initiated at 2 ng/kg/min through a peripheral IV. The infusion will be increased at the discretion of the clinical team based on the response of the patient until a SBP within 5% of the baseline SBP.
Vascular disorders
Leg Swelling
20.0%
1/5 • 7 days
0.00%
0/8 • 7 days
0.00%
0/7 • 7 days
Eye disorders
Blurred Vision
0.00%
0/5 • 7 days
12.5%
1/8 • 7 days
0.00%
0/7 • 7 days
Musculoskeletal and connective tissue disorders
Pain
0.00%
0/5 • 7 days
12.5%
1/8 • 7 days
0.00%
0/7 • 7 days
Respiratory, thoracic and mediastinal disorders
Shortness of Breath
0.00%
0/5 • 7 days
12.5%
1/8 • 7 days
0.00%
0/7 • 7 days

Additional Information

Rohesh J. Fernando, MD

Atrium Health Wake Forest Baptist

Phone: 336.716.2712

Results disclosure agreements

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