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TerminatedNCT02120261USAMPSUpdated May 1, 2019Results posted

Using Saline for Myofascial Pain Syndromes (USAMPS)

A Phase 4 interventional study of Normal Saline and Lidocaine Hydrochloride in Myofascial Pain Syndrome, sponsored by The University of Texas Health Science Center, Houston. Terminated at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-05-01.

Sponsored by The University of Texas Health Science Center, Houston · Phase 4, Interventional, and Treatment

Why this study was terminated
lack of activity, Primary researcher moved to another institution
Phase
Phase 4
Study type
Interventional
Enrollment
51
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study involves adult patients diagnosed with Myofascial Pain Syndromes (MPS). The purpose of this research study is to determine if there is a therapeutic difference between trigger point injection (TPI) of normal saline and conventional drug mix (local anesthesic + steroid) in treating MPS.

02

Conditions studied

  • Myofascial Pain Syndrome

Keywords

  • Myofascial Pain Syndrome
  • trigger point injection
03

In context

Myofascial Pain Syndromes

1,143 studies on the registry are indexed under Myofascial Pain Syndromes; 137 are open to participants now.

This study's enrollment of 51 is below the median of 60 across 937 interventional studies indexed under Myofascial Pain Syndromes.

Browse Myofascial Pain Syndromes studies →

Lead sponsor

The University of Texas Health Science Center, Houston is the lead sponsor of 897 studies on the registry; 214 are open to participants now.

Of its 173 completed or terminated interventional studies of FDA-regulated products, 142 (82%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adult patients diagnosed with MPS of the trapezius, gluteus medius/minimus, iliocostalis thoracis-lumborum, quadratus Lumborum, or paraspinal muscles in the emergency department.

Exclusion criteria

Exclusion Criteria:

  • Patients allergic to lidocaine and/or steroids.
  • Pregnant women.
  • Prisoners.
  • Patients who are cognitively impaired and/or unable to consent for the study.
  • Age \< 18.
  • Signs of localized infection or skin breakdown at the injection site.
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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
51 participants (actual)

Study arms

  • Experimental
    TPI with Normal Saline

    Trigger point injection (TPI) with 1 mL of normal saline solution. Trigger point injection involves a single injection in the area of maximal tenderness or trigger point. This will be performed by the treating physician under sterile technique with a 25 gauge needle.

    Drug: Normal Saline

  • Active comparator
    TPI with Lidocaine & Triamcinolone Acetonide

    Trigger point injection (TPI) with 1 mL of conventional drug mix (lidocaine 1%; 10 mL+ triamcinolone acetonide 40 mg/mL). Trigger point injection involves a single injection in the area of maximal tenderness or trigger point. This will be performed by the treating physician under sterile technique with a 25 gauge needle.

    Drug: Lidocaine Hydrochloride · Drug: Triamcinolone acetonide

Interventions

  • DrugNormal Saline

    Trigger point injection (TPI) with 1 mL of normal saline solution. Trigger point injection involves a single injection in the area of maximal tenderness or trigger point. This will be performed by the treating physician under sterile technique with a 25 gauge needle.

  • Trigger point injection (TPI) with 1 mL of conventional drug mix (lidocaine 1%; 10 mL+ triamcinolone acetonide 40 mg/mL). Trigger point injection involves a single injection in the area of maximal tenderness or trigger point. This will be performed by the treating physician under sterile technique with a 25 gauge needle.

  • Trigger point injection (TPI) with 1 mL of conventional drug mix (lidocaine 1%; 10 mL+ triamcinolone acetonide 40 mg/mL). Trigger point injection involves a single injection in the area of maximal tenderness or trigger point. This will be performed by the treating physician under sterile technique with a 25 gauge needle.

06

What researchers measure

Primary outcomes

  1. Pain Intensity

    The level of pain intensity is quantified using a standard 0-10 Numerical Rating Scale with 10 being the most severe pain intensity and 0 the absence of pain.

    Time frame: baseline

  2. Pain Intensity

    The level of pain intensity is quantified using a standard 0-10 Numerical Rating Scale with 10 being the most severe pain intensity and 0 the absence of pain.

    Time frame: at discharge (a few minutes after receiving intervention)

  3. Pain Intensity

    The level of pain intensity is quantified using a standard 0-10 Numerical Rating Scale with 10 being the most severe pain intensity and 0 the absence of pain.

    Time frame: 2 weeks

Secondary outcomes

  1. Duration of Pain Relief

    If the patient experienced pain relief with the trigger point injection and the pain came back later, the number of days after the injection at which the pain had returned was recorded.

    Time frame: 16 days

07

Results

Posted May 1, 2019

Participant flow

Participant flow — Overall Study
MilestoneTPI With Normal SalineTPI With Lidocaine & Triamcinolone Acetonide
Started2325
Completed2325
Not completed00

Outcome measures

PrimaryPain Intensity

The level of pain intensity is quantified using a standard 0-10 Numerical Rating Scale with 10 being the most severe pain intensity and 0 the absence of pain.

Time frame:
baseline
Reported as:
Mean · units on a scale
Pain Intensity
units on a scaleTPI With Normal SalineTPI With Lidocaine & Triamcinolone Acetonide
Pain Intensity7.69 ± 1.877.44 ± 2.04
PrimaryPain Intensity

The level of pain intensity is quantified using a standard 0-10 Numerical Rating Scale with 10 being the most severe pain intensity and 0 the absence of pain.

Time frame:
at discharge (a few minutes after receiving intervention)
Reported as:
Mean · units on a scale
Pain Intensity
units on a scaleTPI With Normal SalineTPI With Lidocaine & Triamcinolone Acetonide
Pain Intensity1.52 ± 2.221.76 ± 2.86
PrimaryPain Intensity

The level of pain intensity is quantified using a standard 0-10 Numerical Rating Scale with 10 being the most severe pain intensity and 0 the absence of pain.

Time frame:
2 weeks
Reported as:
Mean · units on a scale
Pain Intensity
units on a scaleTPI With Normal SalineTPI With Lidocaine & Triamcinolone Acetonide
Pain Intensity4.29 ± 3.664.14 ± 3.17
SecondaryDuration of Pain Relief

If the patient experienced pain relief with the trigger point injection and the pain came back later, the number of days after the injection at which the pain had returned was recorded.

Time frame:
16 days
Reported as:
Median · days
Duration of Pain Relief
daysTPI With Normal SalineTPI With Lidocaine & Triamcinolone Acetonide
Duration of Pain Relief3 (1 to 16)1 (0 to 15)

Adverse events

Collected over 2 weeks. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
TPI With Normal Saline0/23 (0%)0/23 (0%)0/23 (0%)
TPI With Lidocaine & Triamcinolone Acetonide0/25 (0%)0/25 (0%)0/25 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)TPI With Normal SalineTPI With Lidocaine & Triamcinolone AcetonideTotal
<=18 years000
Between 18 and 65 years232548
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)TPI With Normal SalineTPI With Lidocaine & Triamcinolone AcetonideTotal
Female171835
Male6713
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)TPI With Normal SalineTPI With Lidocaine & Triamcinolone AcetonideTotal
Race/Ethnicity — Hispanic121325
Race/Ethnicity — African American or Black8816
Race/Ethnicity — White336
Race/Ethnicity — Asian011
Region of Enrollment
Region of Enrollment(Participants)TPI With Normal SalineTPI With Lidocaine & Triamcinolone AcetonideTotal
United States232548
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Study locations

2 sites
  • Lyndon Baines Johnson General Hospital
    Houston, Texas 77026, United States
  • Memorial Hermann Hospital Texas Medical Center
    Houston, Texas 77030, United States
09

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

10

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of May 2014, a primary completion of Nov 2016 and a completion of Nov 2016. It does not say whether these dates are actual or estimated.

Results were first posted in May 2019, 2 years 6 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 14, 2014
First posted
Apr 22, 2014
Start
May 2014
Primary completionActual
Nov 2016
CompletionActual
Nov 2016
Results first posted
May 1, 2019
Last update
May 1, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 1, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02120261
Responsible party
Carlos Roldan (Associate Professor of EMS, The University of Texas Health Science Center, Houston) — Principal investigator
First posted
Apr 22, 2014
Start date
May 2014
Primary completion
Nov 2016
Completion
Nov 2016
Results posted
May 1, 2019
Last update
May 1, 2019

Study contacts

Carlos Roldan, MD
principal investigator · The University of Texas Health Science Center, Houston

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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