Title

Assessing Tolerability of Avonex Intramuscular Injections
Assessing Tolerability of Avonex Intramuscular Injections With a 25 Gauge Needle Versus 30 Gauge Needle
  • Phase

    N/A
  • Study Type

    Interventional
  • Study Participants

    20
The purpose of this study is to evaluate patients' views when injecting Avonex intramuscularly.
Study Started
May 31
2012
Primary Completion
Feb 28
2014
Study Completion
Feb 28
2014
Results Posted
Feb 01
2016
Estimate
Last Update
Feb 01
2016
Estimate

Drug Avonex

Intramuscular injection administered using 25 gauge or 30 gauge needle

  • Other names: Interferon beta-1a

30 gauge Experimental

Subjects used a 30 gauge needle for intramuscular injection of Avonex.

25 gauge Experimental

Subjects used a 25 gauge needle for intramuscular injection of Avonex.

Criteria

Inclusion Criteria:

Between 18 - 65 years of age;
Confirmed diagnosis of Relapsing Remitting Multiple Sclerosis;
Currently being treated with Avonex® for at least 90 days;
Using 25 gauge needles for injection of Avonex® for at least 90 days;
Willing and able to complete study questionnaires; and
Provided informed consent to participate in this study

Exclusion Criteria:

Diagnosis of Progressive Multiple Sclerosis;
History of recent illness or infection;
History of allergic reaction to Avonex®;
Any prior usage of a 30 gauge needle for administration of Avonex®;
Concurrent treatment with other immunomodulating therapies;
Pregnant or planning on becoming pregnant;
Nursing mothers; and
Unable to complete the requirements of the study

Summary

25 Gauge

30 Gauge

All Events

Event Type Organ System Event Term

Change in Patient Visual Analog Scale Score for Pre-injection Anxiety

The primary endpoint of the study was a change in patient self-reported 100 mm (10 cm) Visual Analogue Scale (VAS) score for pre-injection anxiety. VAS scale (min=0- max=100 mm (10cm)) 0= no anxiety; 100 mm (10 cm)=very severe anxiety. Data from Weeks 2 and 3 were combined and averaged to obtain a single value as both weeks a 30 gauge needle was used for injection. The 30 gauge needle VAS mean refers to the mean for pre-injection anxiety for that needle size. Data from Weeks 4 and 5 were combined and averaged to obtain a single value as both weeks a 25 gauge needle was used for injection. The 25 gauge needle VAS mean refers to the mean for pre-injection anxiety for that needle size.

25 Gauge

1.58
cm (Mean)
Standard Deviation: 2.25

30 Gauge

2.22
cm (Mean)
Standard Deviation: 2.73

Visual Analog Scale Score for Post-injection Pain

The primary endpoint of the study was a change in patient self-reported 100 mm (10 cm) Visual Analogue Scale (VAS) score for post-injection pain.VAS scale (min=0 - max=100 mm (10 cm)) 0= no pain; 100 mm (10 cm)=very severe pain. Data from Weeks 2 and 3 were combined and averaged to obtain a single value as both weeks a 30 gauge needle was used for injection. The 30 gauge needle VAS mean refers to the mean for post-injection pain for that needle size. Data from Weeks 4 and 5 were combined and averaged to obtain a single value as both weeks a 25 gauge needle was used for injection. The 25 gauge needle VAS mean refers to the mean for post-injection pain for that needle size.

25 Gauge

1.201
cm (Mean)
Standard Deviation: 1.22

30 Gauge

0.764
cm (Mean)
Standard Deviation: 0.93

Fear of Injection

Secondary endpoint was assessment of fear of injection based on patient questionnaires completed prior to each injection. The patient will respond to each statement on a scale which ranges from 1 (almost always) to 4 (almost never). Data from Weeks 2 and 3 were combined and averaged to obtain a single value as both weeks a 30 gauge needle was used for injection. Mean describes fear of injection for the 30 gauge needle. Data from Weeks 4 and 5 were combined and averaged to obtain a single value as both weeks a 25 gauge needle was used for injection. Mean describes fear of injection for the 25 gauge needle.

25 Gauge

1.38
units on a scale (Mean)
Standard Deviation: 0.509

30 Gauge

1.41
units on a scale (Mean)
Standard Deviation: 0.558

Perception of Needle

Secondary endpoint was assessment of the perception of the needle based on patient questionnaires completed after each injection. The patient will respond to each statement on a scale which ranges from 1 (strongly agree) to 5 (strongly disagree). A total of 6 statements were given to the participant the more strongly the participant agreed with the statement, the more favorably they perceived the needle. Data from Weeks 2 and 3 were combined and averaged to obtain a single value as both weeks a 30 gauge needle was used for injection. Mean describes perception of the 30 gauge needle. Data from Weeks 4 and 5 were combined and averaged to obtain a single value as both weeks a 25 gauge needle was used for injection. Mean describes perception of the 25 gauge needle.

25 Gauge

2.58
units on a scale (Mean)
Standard Deviation: 0.914

30 Gauge

1.94
units on a scale (Mean)
Standard Deviation: 0.853

Age, Continuous

49
years (Mean)
Standard Deviation: 10.41

Race/Ethnicity, Customized

Region of Enrollment

Sex: Female, Male

25 Gauge Needle Weeks 1, 4, 5

25 Gauge or 30 Gauge Needle

30 Gauge Needle Weeks 2 and 3

25 Gauge or 30 Gauge Needle