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Intranasal Fentanyl as an Adjunct to Lidocaine Infiltration in Adults Undergoing Abscess Incision and Drainage

A Randomized Trial of Intranasal Fentanyl Versus Placebo as an Adjunct to Lidocaine Infiltration in Adults Undergoing Abscess Incision and Drainage in the Emergency

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03872700
Enrollment
49
Registered
2019-03-13
Start date
2019-08-01
Completion date
2022-12-31
Last updated
2023-08-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Abscess

Brief summary

This randomized clinical trial aims to compare the analgesic efficacy of intranasal fentanyl to placebo as analgesic adjunct to conventional local anesthesia for the treatment of pain of the overall procedure in adult patients undergoing lidocaine infiltration and subsequent abscess incision and drainage in the Emergency Department (ED).

Interventions

Fentanyl Citrate

DRUGPlacebo

Sterile Water Up to 5Cc

Sponsors

Montefiore Medical Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 64 Years
Healthy volunteers
No

Inclusion criteria

* Presenting to the ED for an abscess requiring incision and drainage * ED attending physician's judgment that the patient has capacity to provide informed consent. * Patients must be able to understand English or Spanish.

Exclusion criteria

* Use of opioids or tramadol within past 7 days. * Prior adverse reaction or allergy to opioids. * Patients who are pregnant * Patients weight \> 100kg * Chronic pain syndrome: frequently recurrent or daily pain for at least 3 months results in modulation of pain perception which is thought to be due to down-regulation of pain receptors. Examples of chronic pain syndromes include sickle cell anemia, osteoarthritis, fibromyalgia, and peripheral neuropathies. * Medical condition that might affect metabolism or opioid analgesics such as cirrhosis (Child Pugh A or worse) or kidney impairment (CKD 3 or worse) * Chronic malnutrition, severe hypovolemia (dehydration of blood loss) or hepatic disease * Alcohol intoxication: history of alcoholism or the presence of alcohol intoxication as judged by the treating physician may alter pain perception and has previously increased adverse events. * SBP \<100 mmHg: Opioids can produce peripheral vasodilation causing orthostasis. * HR \< 60/min: Opioids can cause bradycardia. * Oxygen saturation \< 95% on room air: For this study, oxygen saturation must be 95% or above on room air in order to be enrolled. * Use of MAO inhibitors in past 30 days: MAO inhibitors have been reported to intensify the effects of at least one opioid drug causing anxiety, confusion and significant respiratory depression or coma. * Patients using transdermal pain patches or oral opioid use \> 10 days in the prior month: frequent opioid use may influence both the amount of pain patients report as well as the level of relief they obtain from other treatments. * Patients with a history of traumatic brain injury, seizures or hallucinations * Patients with anatomical anomalies or medical conditions precluding intranasal administration

Design outcomes

Primary

MeasureTime frameDescription
Numerical Rating Scale (NRS) Pain Score for Overall ProcedureMeasured once following placement of dressing at completion of procedure, up to 60 minutes following intranasal administrationPatient reported pain scores for overall Procedure assessed immediately after placement of dressing at the end of procedure. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.
NRS Pain Score After IrrigationMeasured once anytime up to 60 minutes following intranasal administrationPatient reported NRS pain scores after Irrigation. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.
NRS Pain Score After Packing of AbscessMeasured once at the time of completion of application of the bandage, up to 60 minutes following intranasal administrationPatient reported pain after Packing of abscess. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.
Numerical Rating Scale (NRS) Pain Score at BaselineBaselinePatient reported pain scores at baseline. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.
NRS Pain Score After Lidocaine InjectionFollowing Lidocaine injection measured once anytime up to 12 minutes after intranasal administrationPatient reported NRS pain scores after Lidocaine injection. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.
NRS Pain Score Following IncisionMeasured once anytime up to 60 minutes following intranasal administrationPatient reported NRS pain scores following Incision. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.
NRS Pain Score After Blunt DissectionMeasured once anytime up to 60 minutes following intranasal administrationPatient reported NRS pain scores after Blunt Dissection. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.

Secondary

MeasureTime frameDescription
Health Care Providers Reported Perception of Study Medication Compared to Usual Care120 minutesProvider perception of better, same or worse treatment compared to usual care Descriptive Scale: better, same, worse \*This is a non-numerical scale with 3 outcome response options as listed above. Better is rated higher than same which is, in turn, rated higher than worse.
Patient Satisfaction With Analgesia120 minutesPatient reported outcomes were measured and reported using the Descriptive Scale below: Descriptive Scale: satisfied with analgesia, neutral, not satisfied with analgesia \*This is a non-numerical scale with 3 outcome response options as listed above. Satisfied is rated higher than neutral which is, in turn, rated higher than not satisfied.

Countries

United States

Participant flow

Recruitment details

Enrollment commenced in August 2019, was temporarily suspended from March 2020 through June 2020 due to COVID-19. Enrollment was permanently halted by the data safety monitoring committee in April 2021 due to inadequate accrual. During the 19 months in which the study was open for enrollment, 176 patients were screened for eligibility and 49 patients were enrolled.

Participants by arm

ArmCount
Intranasal Fentanyl
2 mcg/kg INF, administered via intranasal route by atomizer syringe Intranasal fentanyl: Fentanyl Citrate
24
Placebo
0.04ml/kg of sterile water, administered via intranasal route by atomizer syringe Placebo: Sterile Water Up to 5Cc
25
Total49

Baseline characteristics

CharacteristicPlaceboTotalIntranasal Fentanyl
Age, Continuous36.8 years
STANDARD_DEVIATION 10.3
36.6 years
STANDARD_DEVIATION 10.7
36.4 years
STANDARD_DEVIATION 11
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
United States
25 participants49 participants24 participants
Sex: Female, Male
Female
11 Participants21 Participants10 Participants
Sex: Female, Male
Male
14 Participants28 Participants14 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 240 / 25
other
Total, other adverse events
3 / 244 / 25
serious
Total, serious adverse events
0 / 240 / 25

Outcome results

Primary

NRS Pain Score After Blunt Dissection

Patient reported NRS pain scores after Blunt Dissection. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.

Time frame: Measured once anytime up to 60 minutes following intranasal administration

Population: Only 22 patients in each arm received Blunt Dissection

ArmMeasureValue (MEAN)Dispersion
Intranasal FentanylNRS Pain Score After Blunt Dissection4.1 score on a scaleStandard Deviation 4
PlaceboNRS Pain Score After Blunt Dissection4.4 score on a scaleStandard Deviation 3.8
Primary

NRS Pain Score After Irrigation

Patient reported NRS pain scores after Irrigation. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.

Time frame: Measured once anytime up to 60 minutes following intranasal administration

Population: Only 23 patients in the Intranasal Fentanyl arm and only 21 patients in the Placebo arm received Irrigation

ArmMeasureValue (MEAN)Dispersion
Intranasal FentanylNRS Pain Score After Irrigation3.4 score on a scaleStandard Deviation 3.8
PlaceboNRS Pain Score After Irrigation2.6 score on a scaleStandard Deviation 3.4
Primary

NRS Pain Score After Lidocaine Injection

Patient reported NRS pain scores after Lidocaine injection. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.

Time frame: Following Lidocaine injection measured once anytime up to 12 minutes after intranasal administration

ArmMeasureValue (MEAN)Dispersion
Intranasal FentanylNRS Pain Score After Lidocaine Injection8.4 score on a scaleStandard Deviation 2.7
PlaceboNRS Pain Score After Lidocaine Injection8.0 score on a scaleStandard Deviation 2.2
Primary

NRS Pain Score After Packing of Abscess

Patient reported pain after Packing of abscess. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.

Time frame: Measured once at the time of completion of application of the bandage, up to 60 minutes following intranasal administration

Population: Only 23 patients in the Intranasal Fentanyl arm and only 22 patients in the Placebo arm received Packing of abscess

ArmMeasureValue (MEAN)Dispersion
Intranasal FentanylNRS Pain Score After Packing of Abscess4.5 score on a scaleStandard Deviation 3.9
PlaceboNRS Pain Score After Packing of Abscess3.9 score on a scaleStandard Deviation 3.8
Primary

NRS Pain Score Following Incision

Patient reported NRS pain scores following Incision. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.

Time frame: Measured once anytime up to 60 minutes following intranasal administration

ArmMeasureValue (MEAN)Dispersion
Intranasal FentanylNRS Pain Score Following Incision3.9 score on a scaleStandard Deviation 3.6
PlaceboNRS Pain Score Following Incision3.9 score on a scaleStandard Deviation 3.8
Primary

Numerical Rating Scale (NRS) Pain Score at Baseline

Patient reported pain scores at baseline. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.

Time frame: Baseline

ArmMeasureValue (MEAN)Dispersion
Intranasal FentanylNumerical Rating Scale (NRS) Pain Score at Baseline8.3 score on a scaleStandard Deviation 1.5
PlaceboNumerical Rating Scale (NRS) Pain Score at Baseline8.1 score on a scaleStandard Deviation 2.9
Primary

Numerical Rating Scale (NRS) Pain Score for Overall Procedure

Patient reported pain scores for overall Procedure assessed immediately after placement of dressing at the end of procedure. The NRS for pain is a reliable and validated measure of pain intensity ranging from 0 - no pain, to 10 - worst pain imaginable.

Time frame: Measured once following placement of dressing at completion of procedure, up to 60 minutes following intranasal administration

ArmMeasureValue (MEAN)Dispersion
Intranasal FentanylNumerical Rating Scale (NRS) Pain Score for Overall Procedure6.2 score on a scaleStandard Deviation 3.3
PlaceboNumerical Rating Scale (NRS) Pain Score for Overall Procedure7.0 score on a scaleStandard Deviation 3.2
Secondary

Health Care Providers Reported Perception of Study Medication Compared to Usual Care

Provider perception of better, same or worse treatment compared to usual care Descriptive Scale: better, same, worse \*This is a non-numerical scale with 3 outcome response options as listed above. Better is rated higher than same which is, in turn, rated higher than worse.

Time frame: 120 minutes

Population: This study was formally completed as per Albert Einstein College of Medicine IRB records. Data was not collected for the Health care providers reported perception of study medication compared to usual care' outcome and as such an assessment of whether study medication provided a better, worse, or similar outcome as compared to usual care, from a provider perspective, was unable to be made

Secondary

Patient Satisfaction With Analgesia

Patient reported outcomes were measured and reported using the Descriptive Scale below: Descriptive Scale: satisfied with analgesia, neutral, not satisfied with analgesia \*This is a non-numerical scale with 3 outcome response options as listed above. Satisfied is rated higher than neutral which is, in turn, rated higher than not satisfied.

Time frame: 120 minutes

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Intranasal FentanylPatient Satisfaction With AnalgesiaNot Satisfied with Analgesia1 Participants
Intranasal FentanylPatient Satisfaction With AnalgesiaNeutral (neither satisfied nor dis-satisifed)9 Participants
Intranasal FentanylPatient Satisfaction With AnalgesiaSatisfied with Analgesia14 Participants
PlaceboPatient Satisfaction With AnalgesiaNot Satisfied with Analgesia4 Participants
PlaceboPatient Satisfaction With AnalgesiaNeutral (neither satisfied nor dis-satisifed)13 Participants
PlaceboPatient Satisfaction With AnalgesiaSatisfied with Analgesia8 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026