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CompletedNCT00997113Updated Sep 25, 2014Results posted

Stress During Deep Sedation With Propofol With and Without Alfentanil

A Phase 4 interventional study of propofol and alfentanil in Sedation, sponsored by Hennepin Healthcare Research Institute. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2014-09-25.

Sponsored by Hennepin Healthcare Research Institute · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a randomized clinical trial of deep procedural sedation with propofol with and without supplemental alfentanil. Patients will be assessed for total and fractionated serum catecholamines before and after the procedure in addition to usual procedural sedation outcomes parameters to assess the adrenergic effect of propofol sedation without supplemental opioid.

02

Conditions studied

  • Sedation

Keywords

  • propofol
  • alfentanil
  • procedural sedation
  • stress biomarkers
  • Deep procedural sedation in the ED
03

In context

Lead sponsor

Hennepin Healthcare Research Institute is the lead sponsor of 69 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • patients who will require deep procedural sedation with propofol in the ED

Exclusion criteria

Exclusion Criteria:

  • age \<18
  • intoxication
  • unable to provide informed consent
  • allergy to propofol or alfentanil
  • pregnant
  • ASA physical status score > 2
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
20 participants (actual)

Study arms

  • Active comparator
    Propofol

    propofol only for deep procedural sedation

    Drug: propofol

  • Active comparator
    Propofol/alfentanil

    Propofol with alfentanil for deep procedural sedation

    Drug: propofol · Drug: alfentanil

Interventions

  • Drugpropofol

    1 mg/kg IV followed by 0.5 mg/kg iv prn sedation

  • Drugalfentanil

    alfentanil 10 ug/kg immediately prior to propofol dose

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What researchers measure

Primary outcomes

  1. Change in Serum Catecholamines

    change in serum catecholamine levels, values indicate a decrease over the procedure. These patients underwent fracture reduction procedures which are typically associated with an increase in catecholamines.

    Time frame: one minute prior to the start of the procedure and immediately at the end of sedation procedure (median time of procedure 12 minutes range 6-26 minutes

Secondary outcomes

  1. Respiratory Depression

    categorized as a change in end tidal CO2 from baseline \>10mmhg, a loss of end tidal CO2 waveform for more than 6 seconds, or an oxygen saturation less than 93%.

    Time frame: From one minute prior to the start of the sedation procedure until the patient has returned to baseline mental status

  2. Patient Reported Pain and Recall of the Painful Procedure for Which They Were Sedated Measure by Patient Query After They Had Regained Their Baseline Level of Consciousness After the Procedure

    Pain and recall were measured seperately by direct patient query. The patient was asked if they experienced any pain during the procedure. The patient was then asked if they could recall any part of the fracture reduction. Patients who had either pain with the procedure of recall of the procedure were counted as having pain or recall with the procedure.

    Time frame: single time point measured after sedation procedure completed

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Results

Posted Sep 25, 2014

Participant flow

34 patients were elligible, 14 underwent sedation emergently before the patient could be approached for study enrollment.

Participant flow — Overall Study
MilestonePropofolPropofol/Alfentanil
Started1010
Completed1010
Not completed00

Outcome measures

PrimaryChange in Serum Catecholamines

change in serum catecholamine levels, values indicate a decrease over the procedure. These patients underwent fracture reduction procedures which are typically associated with an increase in catecholamines.

Time frame:
one minute prior to the start of the procedure and immediately at the end of sedation procedure (median time of procedure 12 minutes range 6-26 minutes
Reported as:
Median · mcg/ml
Change in Serum Catecholamines
mcg/mlPropofolPropofol/Alfentanil
Change in Serum Catecholamines87 (1 to 353)106 (21 to 295)
Statistical analysis
  • Propofol vs Propofol/Alfentanil · Wilcoxon (Mann-Whitney) · p = 0.940
SecondaryRespiratory Depression

categorized as a change in end tidal CO2 from baseline \>10mmhg, a loss of end tidal CO2 waveform for more than 6 seconds, or an oxygen saturation less than 93%.

Time frame:
From one minute prior to the start of the sedation procedure until the patient has returned to baseline mental status
Reported as:
Number · participants
Respiratory Depression
participantsPropofolPropofol/Alfentanil
Respiratory Depression45
SecondaryPatient Reported Pain and Recall of the Painful Procedure for Which They Were Sedated Measure by Patient Query After They Had Regained Their Baseline Level of Consciousness After the Procedure

Pain and recall were measured seperately by direct patient query. The patient was asked if they experienced any pain during the procedure. The patient was then asked if they could recall any part of the fracture reduction. Patients who had either pain with the procedure of recall of the procedure were counted as having pain or recall with the procedure.

Time frame:
single time point measured after sedation procedure completed
Reported as:
Number · participants
Patient Reported Pain and Recall of the Painful Procedure for Which They Were Sedated Measure by Patient Query After They Had Regained Their Baseline Level of Consciousness After the Procedure
participantsPropofolPropofol/Alfentanil
Patient Reported Pain and Recall of the Painful Procedure for Which They Were Sedated Measure by Patient Query After They Had Regained Their Baseline Level of Consciousness After the Procedure25

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Propofol—0/10 (0%)0/10 (0%)
Propofol/Alfentanil—0/10 (0%)1/10 (10%)
Most frequent other events
Most frequent other events
EventPropofolPropofol/Alfentanil
apneaRespiratory, thoracic and mediastinal disorders0/101/10

Baseline characteristics

Age, Continuous
Age, Continuous(years)PropofolPropofol/AlfentanilTotal
Median34 (18 to 60)36 (20 to 58)35 (18 to 60)
Age, Categorical
Age, Categorical(Participants)PropofolPropofol/AlfentanilTotal
<=18 years000
Between 18 and 65 years101020
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)PropofolPropofol/AlfentanilTotal
Female4610
Male6410
Region of Enrollment
Region of Enrollment(participants)PropofolPropofol/AlfentanilTotal
United States101020
08

Study locations

1 site
  • Hennepin County Medical Center
    Minneapolis, Minnesota 55415, United States
09

References and documents

Publications

  • Miner JR, Moore JC, Plummer D, Gray RO, Patel S, Ho JD. Randomized clinical trial of the effect of supplemental opioids in procedural sedation with propofol on serum catecholamines. Acad Emerg Med. 2013 Apr;20(4):330-7. doi: 10.1111/acem.12110. PubMed 23701339 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 25, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00997113
Lead sponsor
Hennepin Healthcare Research Institute
Responsible party
Sponsor
First posted
Oct 19, 2009
Start date
Oct 2009
Primary completion
Oct 2012
Completion
Dec 2012
Results posted
Sep 25, 2014
Last update
Sep 25, 2014

Study contacts

James R. Miner, MD
principal investigator · Hennepin Faculty Associates

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2014. You cannot join it, but the record below documents what was studied.

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