NCT05495542

Brief Summary

Shotblocker is an effective approach to reduce injection pain. Generally, injection pain has been studied in children, but reducing injection pain in adults is an important issue. This study investigates the effect of ShotBlocker on pain and satisfaction levels associated with diphtheria-tetanus vaccination in pregnant women. The sample of this prospective, single-blind randomized controlled experimental study consists of 146 pregnant women registered to the Family Health Center between October 2018 and June 2019. Women were assigned to ShotBlocker and control groups with 73 women in each group. The women's pulse rate was taken one minute before the injection by the researcher. In the ShotBlocker group was used ShotBlocker. The control group used the steps of administering a normal intramuscular injection. The pain and satisfaction related to the injection were evaluated using the Visual Analog Scale and Visual Patient Satisfaction Scale after the vaccination. Pulse rates of the women were taken again by the researcher one minute after the injection.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
146

participants targeted

Target at P75+ for not_applicable pain

Timeline
Completed

Started Nov 2018

Shorter than P25 for not_applicable pain

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2018

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2018

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 30, 2019

Completed
3.2 years until next milestone

First Submitted

Initial submission to the registry

August 5, 2022

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 10, 2022

Completed
Last Updated

August 10, 2022

Status Verified

August 1, 2022

Enrollment Period

Same day

First QC Date

August 5, 2022

Last Update Submit

August 8, 2022

Conditions

Keywords

diphtheria-tetanus vaccineintramuscular injectionpainpain managementpatient satisfactionpregnant woman

Outcome Measures

Primary Outcomes (1)

  • Visual analog scale

    The VAS is used to assess the severity of acute pain. It is mostly a horizontal or vertical line 100 mm long, starting with "no pain" and ending with "unbearable pain". It is used to convert some values that cannot be measured numerically to a numerically usable form \[10\].

    6 month

Secondary Outcomes (1)

  • Visual patient satisfaction scale

    6 month

Study Arms (2)

Shotblocker group

EXPERIMENTAL

In the ShotBlocker group, ShotBlocker was placed on the previously determined injection site before vaccination, and the vaccination was performed by holding it on the surface of the skin and pressing lightly with the fingertips. All vaccinations were carried out by an experienced nurse. ShotBlocker was removed after removing the needle.

Other: ShotBlocker

Control group

NO INTERVENTION

In the control group, the steps of administering a normal intramuscular injection were used. Except for this, no additional method was used. All vaccinations were carried out by an experienced nurse.

Interventions

ShotBlocker (Bionix, Toledo, OH) is one of the methods that can be used to reduce pain caused by IM injections. This small, flat, U-shaped plastic device used by holding it on the skin surface during injection did not have any side effects \[5\]. ShotBlocker has a surface of 2 mm thick with rounded nubs to stimulate the skin (Figure 1). The surface of the plastic device is placed on the skin just before the injection; there is a hole in the center where the injection is administered \[6\]. The rounded nubs on the surface of the plastic device do not damage the skin, these rounded nubs that create a slight pressure provide a warning for the Gate Control Theory \[7\]

Shotblocker group

Eligibility Criteria

Age18 Years+
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsPregnant women were included in the study.
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Able to speak and understand Turkish
  • Those who volunteered to participate in the study and received written consent
  • years old and over
  • Those with tetanus+diphtheria vaccination prescription/demand
  • No vision-hearing-speech problems
  • No secondary cause of acute pain other than intramuscular injection.
  • Pregnant women who do not have a physical disability (burn, absence or amputation of an extremity, contracture, tissue necrosis, etc.) for injection into the deltoid muscle.

You may not qualify if:

  • Pregnant women who cannot speak Turkish
  • Younger than 18
  • Pregnant women who do not want to participate in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Merve

Izmir, Bornova, 35100, Turkey (Türkiye)

Location

Related Publications (3)

  • Drago LA, Singh SB, Douglass-Bright A, Yiadom MY, Baumann BM. Efficacy of ShotBlocker in reducing pediatric pain associated with intramuscular injections. Am J Emerg Med. 2009 Jun;27(5):536-43. doi: 10.1016/j.ajem.2008.04.011.

  • Romano CL, Cecca E. A new method to reduce pin-prick pain of intra-muscular and subcutaneous injections. Minerva Anestesiol. 2005 Oct;71(10):609-15. English, Italian.

  • Cobb JE, Cohen LL. A randomized controlled trial of the ShotBlocker for children's immunization distress. Clin J Pain. 2009 Nov-Dec;25(9):790-6. doi: 10.1097/AJP.0b013e3181af1324.

MeSH Terms

Conditions

PainAgnosiaPatient Satisfaction

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsPerceptual DisordersNeurobehavioral ManifestationsNervous System DiseasesTreatment Adherence and ComplianceHealth BehaviorBehavior

Study Officials

  • Leyla KHORSHID, Professor

    khorshidleyla@gmail.com

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
The participants in the study and the researcher who evaluated the pain were blinded.
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Research Assistant

Study Record Dates

First Submitted

August 5, 2022

First Posted

August 10, 2022

Study Start

November 1, 2018

Primary Completion

November 1, 2018

Study Completion

May 30, 2019

Last Updated

August 10, 2022

Record last verified: 2022-08

Data Sharing

IPD Sharing
Will not share

Locations