Skip to content

Angled-tip vs. Straight-tip Guidewire in Biliary Cannulation

Comparison Between an Angled-tip and Straight-tip Guidewire in Biliary Cannulation: a Prospective, Randomized Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05600270
Enrollment
70
Registered
2022-10-31
Start date
2022-10-22
Completion date
2023-08-24
Last updated
2024-10-31

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

Conditions

Bile Duct Diseases

Keywords

ERCP

Brief summary

The investigators aim is to compare outcomes between an angled-tip guidewire and a straight-tip guidewire in cannulation of the common bile duct during ERCP. This is a randomized, controlled, single-blinded study. The primary outcome is success of cannulation and secondary outcomes are incidence of post-ERCP pancreatitis, procedure duration, and rate of complication between the angled wire and straight wire.

Detailed description

Wire-guided cannulation of the common bile duct is a standard technique utilized during Endoscopic Retrograde Cholangio-Pancreatography (ERCP) to ensure safe and effective access to the common bile duct via the ampulla of Vater. Due to the anatomy of the ampulla, and the orientation of the biliary orifice, a guidewire with an angled tip may allow easier and safer access to the common bile duct without inadvertent manipulation of the pancreatic duct. The investigators aim to assess the technical and clinical outcomes between an angled-tip guidewire (GW) compared to a straight-tip guidewire in wire-guided cannulation of the common bile duct. The investigators hypothesize that an angled-tip GW is associated with increased rate of successful cannulation, decreased procedure time and decreased rate of post-ERCP pancreatitis in wire-guided biliary cannulation during ERCP.

Interventions

DEVICEAngled guidewire

Cannulation of the common bile duct using an angled-tip guidewire during ERCP

DEVICEStraight guidewire

Cannulation of the common bile duct using an straight-tip guidewire during ERCP

Sponsors

Neev Mehta
Lead SponsorOTHER

Study design

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

Masking description

Single-blinded study with masking of participant

Intervention model description

Randomized, Controlled, Single-Blinded Trial

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* patients undergoing ERCP for cholangiography, bile or tissue sampling from the gallbladder or bile duct * patients undergoing ERCP for treatment of biliary diseases (removal of common bile duct stones, biliary stent placement)

Exclusion criteria

* Patients who are less than 18 years old * Pregnant patients * Patients who have undergone previous bile duct cannulation or sphincterotomy * Patients who have undergone prior endoscopic balloon dilation or needle-knife fistulotomy * Patients who have undergone gastric surgery (Billroth gastrectomy II, Roux-en-Y gastric bypass) * Patients with acute pancreatitis * Patients who refuse endoscopic intervention * Patients with ampullary tumor, duodenal stenosis, or pre-operatively proven pancreaticobiliary malunion

Design outcomes

Primary

MeasureTime frameDescription
CannulationDay of ProcedureRate of successful cannulation of common bile duct

Secondary

MeasureTime frameDescription
Post ERCP PancreatitisProcedure day and up to day 5 post procedureNumber of participants who develop post ERCP pancreatitis
DurationDay of procedureTotal duration of procedure

Countries

United States

Participant flow

Participants by arm

ArmCount
Angled Wire
Angled guidewire intervention arm Angled guidewire: Cannulation of the common bile duct using an angled-tip guidewire during ERCP
33
Straight Wire
Straight guidewire intervention arm Straight guidewire: Cannulation of the common bile duct using an straight-tip guidewire during ERCP
33
Total66

Baseline characteristics

CharacteristicAngled WireStraight WireTotal
Age, Continuous70.42 years60.66 years68.18 years
Race and Ethnicity Not Collected0 Participants
Sex: Female, Male
Female
12 Participants17 Participants29 Participants
Sex: Female, Male
Male
21 Participants16 Participants37 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 330 / 33
other
Total, other adverse events
0 / 330 / 33
serious
Total, serious adverse events
1 / 332 / 33

Outcome results

Primary

Cannulation

Rate of successful cannulation of common bile duct

Time frame: Day of Procedure

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Angled WireCannulation30 Participants
Straight WireCannulation31 Participants
Secondary

Duration

Total duration of procedure

Time frame: Day of procedure

ArmMeasureValue (MEAN)
Angled WireDuration1964.26 seconds
Straight WireDuration1569.03 seconds
Secondary

Post ERCP Pancreatitis

Number of participants who develop post ERCP pancreatitis

Time frame: Procedure day and up to day 5 post procedure

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Angled WirePost ERCP Pancreatitis1 Participants
Straight WirePost ERCP Pancreatitis2 Participants

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