NCT07379034

Brief Summary

This study was conducted to investigate the effects of ShotBlocker and a vibration pen on pain in infants during routine vaccination. In this randomized controlled trial, 96 healthy infants aged 2-6 months were included. The infants were randomized into three groups: vibration pen, ShotBlocker, and control. Pain was assessed before, during, and after the procedure using the FLACC scale.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
96

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Oct 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2025

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

January 23, 2026

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 23, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 23, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

January 30, 2026

Completed
Last Updated

January 30, 2026

Status Verified

January 1, 2026

Enrollment Period

4 months

First QC Date

January 23, 2026

Last Update Submit

January 23, 2026

Conditions

Keywords

vaccinationpaininfantShotblockerVibration

Outcome Measures

Primary Outcomes (1)

  • FLACC Scale

    The FLACC score will be used as the data collection tool. The FLACC scale is a valid and reliable measure that assesses infant pain by evaluating five domains-facial expression, leg movement, activity level, crying, and consolability-and scores pain on a scale from 0 to 10.

    up to 6 months

Study Arms (3)

Experimental 1

EXPERIMENTAL

ShotBlocker Group

Other: ShotBlocker Group

Experimental 2

EXPERIMENTAL

Vibration device group

Other: Vibration Group

Control

NO INTERVENTION

Routine nursing care

Interventions

ShotBlocker is a plastic medical device with multiple blunt projections that is applied by pressing on the skin during injection. It aims to reduce pain transmission through activation of the Gate Control Theory by stimulating multiple sensory nerve endings and diverting the infant's attention from the painful stimulus.

Experimental 1

The vibration pen is a battery-operated device that delivers high-frequency mechanical vibrations and is applied near the injection site. It aims to reduce perceived pain intensity by stimulating large-diameter nerve fibers and inhibiting pain transmission at the "gate" level.

Experimental 2

Eligibility Criteria

Age2 Months - 6 Months
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Healthy infant aged 2-6 months
  • Written consent from the parent

You may not qualify if:

  • Premature infants born before 37 weeks
  • Infants with severe neurodevelopmental disorders
  • Presence of acute infection or fever
  • History of a previous serious vaccine reaction

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ataturk University

Yakutiye, Erzurum, 25240, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Pain

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Research Assistant

Study Record Dates

First Submitted

January 23, 2026

First Posted

January 30, 2026

Study Start

October 1, 2025

Primary Completion

January 23, 2026

Study Completion

January 23, 2026

Last Updated

January 30, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations