NCT05861765

Brief Summary

Rationale:Papaverine is effective on radial artery spasm during transradial cerebral angiography. Purpose: This multicenter, randomized, placebo-controlled, double blind, phase 2b trial aims to investigate the effect and safety of papaverine in treating radial artery spasm during transradial cerebral angiography.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
240

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started May 2023

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 3, 2023

Completed
14 days until next milestone

First Posted

Study publicly available on registry

May 17, 2023

Completed
7 days until next milestone

Study Start

First participant enrolled

May 24, 2023

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2023

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 30, 2023

Completed
Last Updated

June 12, 2023

Status Verified

April 1, 2023

Enrollment Period

4 months

First QC Date

May 3, 2023

Last Update Submit

June 8, 2023

Conditions

Keywords

Radial artery spasmPapaverineCerebral angiography

Outcome Measures

Primary Outcomes (1)

  • The incidence of RAS

    The primary outcome of this trial is to evaluate the incidence of RAS during surgery. The operator assessed RAS on the basis of a questionnaire addressing the following five signs: persistent forearm pain, pain response on catheter manipulation, pain response to introducer withdrawal, difficult catheter manipulation after being "trapped" by the radial artery with considerable resistance on withdrawal of the introducer. RAS was considered to be indicated by the presence of at least 2 of these 5 signs or by the presence of just 1 when the operator considered it necessary to administer other spasmolytic agent.

    Intraprocedural: From procedure start to application of radial band. Approximate time 30 to 90 minutes.

Secondary Outcomes (2)

  • The pain intensity of the right forearm

    Intraprocedural: From procedure start to application of radial band. Approximate time 30 to 90 minutes.

  • The incidence of transradial approach failure

    Intraprocedural: From procedure start to application of radial band. Approximate time 30 to 90 minutes.

Other Outcomes (3)

  • The risk of death, non fatal myocardial infarction, and stroke

    Within 1 week after surgery

  • Severe systemic hypotension

    Within 24 hours after surgery or during surgery

  • Complications at the puncture site

    Within 24 hours after surgery

Study Arms (2)

Papaverine

EXPERIMENTAL

Slowly inject 10ml of papaverine hydrochloride solution (30mg/10ml) through the successfully implanted radial artery sheath, and continuously drip papaverine hydrochloride solution (60mg/500ml, 4ml/min) through the artery sheath during the operation. The compatible solutions are normal saline(0.9%);

Drug: Papaverine Hydrochloride

Placebo

PLACEBO COMPARATOR

After inserting the radial artery sheath, slowly inject 10ml normal saline(0.9%) through the artery sheath, and continuously drip normal saline(0.9%, 500ml, 4ml/min) through the artery sheath during the operation.

Drug: normal saline

Interventions

Slowly inject 10ml of papaverine hydrochloride solution (30mg/10ml) through the successfully implanted radial artery sheath, and continuously drip papaverine hydrochloride solution (60mg/500ml, 4ml/min) through the artery sheath during the operation. The compatible solutions are normal saline(0.9%);

Papaverine

After inserting the radial artery sheath, slowly inject 10ml normal saline(0.9%) through the artery sheath, then continuously drip normal saline(0.9%, 500ml, 4ml/min) through the artery sheath during the operation.

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • All patients scheduled for cerebral angiography will be eligible for screening.
  • Participant is willing and is able to give informed consent for participating in the trial.
  • Male or Female, aged 18 years or above.

You may not qualify if:

  • Any patient with negative modified Allen test
  • Altered liver function
  • atrioventricular heart block III degree
  • Suspected or confirmed cerebral hemorrhage patients
  • Hemodynamic Instability : systolic pressure \< 100 mmHg, heart rate \> 100 bpm, tachycardia uncontrollable.
  • Patients with cerebral edema and increased intracranial pressure within 24 hours to 2 weeks after stroke
  • Coronary artery bypass grafting(CABG) operation history and whose right radial artery is missing as a "bridge vessel"
  • Severe skin musculoskeletal malformation of forearm or failure to complete radial artery puncture and sheath placement for other reasons
  • Hypersensitivity or contraindication to papaverine
  • Hypersensitivity or contraindication to nitroglycerine
  • Glaucomatous patients
  • Parkinson's disease patients
  • Women who are suspected or known to be pregnant or breastfeeding

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sun Yat-sen Memorial Hospital, Sun Yat-sen University

Guangzhou, Guangdong, 510120, China

RECRUITING

Related Publications (1)

  • Pan D, Yang J, Liu M, Xu Y, Feng J, Li H, Luo W, He B, Xiao S, Yang X, Tang Y. Efficacy of Papaverine to Prevent Radial Artery Spasm During Transradial Cerebral Angiography (PASS): rationale and design. Stroke Vasc Neurol. 2025 Sep 10:svn-2024-003659. doi: 10.1136/svn-2024-003659. Online ahead of print.

MeSH Terms

Interventions

PapaverineSaline Solution

Intervention Hierarchy (Ancestors)

BenzylisoquinolinesAlkaloidsHeterocyclic CompoundsOpiate AlkaloidsIsoquinolinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingCrystalloid SolutionsIsotonic SolutionsSolutionsPharmaceutical Preparations

Study Officials

  • Yamei Tang, PhD

    Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University

    STUDY CHAIR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 3, 2023

First Posted

May 17, 2023

Study Start

May 24, 2023

Primary Completion

September 30, 2023

Study Completion

October 30, 2023

Last Updated

June 12, 2023

Record last verified: 2023-04

Data Sharing

IPD Sharing
Will not share

Locations