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The Platelet Aggregation After tiCagrelor Inhibition and FentanYl Trial (PACIFY)

The Platelet Aggregation After tiCagrelor Inhibition and FentanYl Trial

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02683707
Acronym
PACIFY
Enrollment
212
Registered
2016-02-17
Start date
2016-03-31
Completion date
2017-05-25
Last updated
2018-06-07

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

Conditions

Coronary Artery Disease

Keywords

Percutaneous Coronary Intervention, Blood Platelets, Fentanyl

Brief summary

With potent analgesic properties, perceived hemodynamic benefits and limited alternatives, opiates are the analgesic mainstay for acute coronary syndrome (ACS) patients reporting peri-procedural pain or nitrate-resistant chest pain. However, large observational studies suggest that opiate administration during ACS may result in adverse cardiovascular outcomes. Complimenting this, a number of recent mechanistic studies have demonstrated delayed and attenuated effects of oral dual anti-platelet therapy (DAPT) on platelet inhibition endpoints among subjects receiving intravenous morphine. These studies support the hypothesis that morphine delays the gastrointestinal absorption of DAPT medications. However, no data exist on the impact of intravenous fentanyl, a systemic opioid analgesic routinely administered during percutaneous coronary intervention (PCI) procedures, on the platelet inhibition effects of DAPT. The investigators hypothesize that, similar to morphine, fentanyl administered at the time of PCI will reduce and delay the effect of DAPT on platelet function. As such, the primary aim of this study is to test the impact of intravenous fentanyl on residual platelet reactivity by randomizing patients undergoing PCI to a strategy of peri-procedural benzodiazepine plus non-systemic local analgesia or to the current standard of benzodiazepine plus intravenous fentanyl. Given the critical need for rapid and robust inhibition of platelet function during PCI, this trial has true potential to change clinical practice, particularly if the investigators demonstrate reduced DAPT absorption and elevated residual platelet reactivity among patients receiving fentanyl during PCI.

Interventions

OTHERRemoval of Fentanyl from peri-procedural analgesia

Removal of Fentanyl from peri-procedural analgesia (which is otherwise routinely given for PCI)

DRUGFentanyl

IV peri-procedural analgesia

DRUGLidocaine

Local Anesthetic

DRUGMidazolam

IV sedation

Sponsors

Johns Hopkins University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

* undergoing clinically indicated PCI; \>18 years of age; able for PO medications and to provide informed consent

Exclusion criteria

* pregnant; any DAPT(clopidogrel, prasugrel, ticagrelor) within 14 days of enrollment; known coagulation disorders; active treatment with oral anticoagulant or low molecular weight heparin; impaired renal or hepatic function; platelets \< 100 x10 3 /mcl; planned use of Glycoprotein 2b3a for PCI; Prior Trans Arterial Valve Replacement (TAVR) or planned TAVR post PCI; and contraindications to ticagrelor or opiates.

Design outcomes

Primary

MeasureTime frameDescription
Ticagrelor PharmacokineticsMeasured over 24 hours (at 0, 0.5, 1, 2, 4, and 24 hours)Area under the curve for Ticagrelor Absorption

Secondary

MeasureTime frameDescription
Single Time-point Platelet Reactivity Using Verify NowMeasured at 2 hoursBlood test of Platelet Cell Reactivity using Verify Now (P2Y12 Reactivity Units)
Platelet Reactivity Using Light Transmission AggregometryMeasured at 2 hoursBlood test of Platelet Cell Reactivity using Light Transmission Aggregometry (reported as percent of baseline aggregation in response to adenosine diphosphate stimulation)
Patient Self-reported Pain2 hoursPatient self report of pain using a visual analog scale (VAS). Scale ranges from 0 to 10 with 0 being No pain and 10 being Most severe pain.

Countries

United States

Participant flow

Participants by arm

ArmCount
PCI Without IV Opiate
IV midazolam and Local Anesthetic, with removal of IV fentanyl from peri-procedural analgesia (which is otherwise routinely given) Removal of Fentanyl from peri-procedural analgesia: Removal of Fentanyl from peri-procedural analgesia (which is otherwise routinely given for PCI) Lidocaine: Local Anesthetic Midazolam: IV sedation
105
PCI With IV Opiate
IV midazolam and Local Anesthetic and IV fentanyl for peri-procedural analgesia Fentanyl: IV peri-procedural analgesia Lidocaine: Local Anesthetic Midazolam: IV sedation
107
Total212

Baseline characteristics

CharacteristicPCI Without IV OpiatePCI With IV OpiateTotal
Age, Continuous65 years
STANDARD_DEVIATION 9.3
63 years
STANDARD_DEVIATION 10.2
64 years
STANDARD_DEVIATION 10
Platelet count230 K/cu mm
STANDARD_DEVIATION 59
223 K/cu mm
STANDARD_DEVIATION 71
226 K/cu mm
STANDARD_DEVIATION 65
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
7 Participants15 Participants22 Participants
Race (NIH/OMB)
Black or African American
19 Participants17 Participants36 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
79 Participants75 Participants154 Participants
Region of Enrollment
United States
105 Participants107 Participants212 Participants
Sex: Female, Male
Female
42 Participants25 Participants67 Participants
Sex: Female, Male
Male
63 Participants82 Participants145 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 1050 / 107
other
Total, other adverse events
0 / 1050 / 107
serious
Total, serious adverse events
13 / 1057 / 107

Outcome results

Primary

Ticagrelor Pharmacokinetics

Area under the curve for Ticagrelor Absorption

Time frame: Measured over 24 hours (at 0, 0.5, 1, 2, 4, and 24 hours)

Population: Only the subgroup (n=70) of enrolled participants who required PCI and were loaded with ticagrelor had information on the primary endpoint

ArmMeasureValue (MEAN)Dispersion
PCI Without IV OpiateTicagrelor Pharmacokinetics3301 ng*hr/mLStandard Error 271
PCI With IV OpiateTicagrelor Pharmacokinetics2107 ng*hr/mLStandard Error 301
Secondary

Patient Self-reported Pain

Patient self report of pain using a visual analog scale (VAS). Scale ranges from 0 to 10 with 0 being No pain and 10 being Most severe pain.

Time frame: 2 hours

ArmMeasureValue (MEAN)Dispersion
PCI Without IV OpiatePatient Self-reported Pain2.3 units on a scaleStandard Deviation 3.1
PCI With IV OpiatePatient Self-reported Pain1.5 units on a scaleStandard Deviation 2.3
Secondary

Platelet Reactivity Using Light Transmission Aggregometry

Blood test of Platelet Cell Reactivity using Light Transmission Aggregometry (reported as percent of baseline aggregation in response to adenosine diphosphate stimulation)

Time frame: Measured at 2 hours

Population: Only the subgroup (n=70) of enrolled participants who required PCI and were loaded with ticagrelor had information on the primary endpoint

ArmMeasureValue (MEAN)Dispersion
PCI Without IV OpiatePlatelet Reactivity Using Light Transmission Aggregometry27.5 percentage of baseline aggregationStandard Deviation 14.4
PCI With IV OpiatePlatelet Reactivity Using Light Transmission Aggregometry39.3 percentage of baseline aggregationStandard Deviation 8.7
Secondary

Single Time-point Platelet Reactivity Using Verify Now

Blood test of Platelet Cell Reactivity using Verify Now (P2Y12 Reactivity Units)

Time frame: Measured at 2 hours

Population: Only the subgroup (n=70) of enrolled participants who required PCI and were loaded with ticagrelor had information on the primary endpoint

ArmMeasureValue (MEAN)Dispersion
PCI Without IV OpiateSingle Time-point Platelet Reactivity Using Verify Now78 PRUsStandard Deviation 72
PCI With IV OpiateSingle Time-point Platelet Reactivity Using Verify Now112 PRUsStandard Deviation 95

Source: ClinicalTrials.gov · Data processed: Mar 8, 2026