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CompletedNCT03494647Updated May 25, 2022Results posted

Comparison of Braces for Treatment of Sever's Disease

An interventional study of Cheetah Heel Cup and The X Brace in Sever's Disease, sponsored by University of Colorado, Denver. Completed at 1 site in United States. Open to participants aged 8 Years to 14 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-05-25.

Sponsored by University of Colorado, Denver · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
43
Allocation
Randomized
Ages
8 Years to 14 Years
Sex
All
01

Study summary

This study is to learn more about braces that may help young athletes diagnosed with Sever's disease. Young athletes with this diagnosis who are seen by a Sports Medicine doctor will be asked it they want to be a part of the study. Patients who want to be in the study will be randomly assigned to wear one of two kinds of braces to treat their foot pain via randomization scheme independently created by a statistician. The subjects will be given the brace for free. The subjects will also answer survey questions about the brace when they first see the doctor, then at one, two, and three months after their first visit. Data collected in this study will help doctors gain a better understanding of how to treat young athletes who do sports without shoes who are diagnosed with Sever's disease.

Read the detailed description

It is widely accepted and scientifically confirmed that physical activity improves child health with positive effects on adiposity, musculoskeletal health and fitness, and cardiovascular health. Beyond the health benefits of physical activity alone, participation in sports at this crucial age enhances psychological and social health outcomes. Athletes with Sever's symptoms are limited in their ability to participate in physical activity and athletics, and it is suggested that active intervention in the management of Sever's is most appropriate to improve quality of life and outcomes without substantial time lost from sport or physical activity. Therefore, efficient and effective treatment is essential, especially for active and competitive athletes.

Standard treatment for Sever's disease is placement of heel cups in shoes and stretching or physical therapy. These interventions are effective in reducing Sever's patients' heel pain. A retrospective study showed that with treatment with a heel cup or other foot orthoses, symptoms improved within 2 months. However, there remains a distinct lack of randomized control trials evaluating treatments for Sever's in the literature. For the many young athletes with Sever's who participate in barefoot sports such as gymnastics, dance, or tae kwan do, the standard treatment is inadequate. They cannot use the recommended heel cups, which are placed in an athletic shoe. Currently, two braces are commonly used for barefoot athletes with Sever's: Cheetah Heel Cups and The X Brace. Neither of these braces are currently FDA approved as they are not considered medical devices and are marketed as an insert. Health care providers often recommend barefoot athletes purchase these braces, but no published studies evaluating their effectiveness exist in the established literature. This study will compare these two braces in an investigator-blinded, randomized control trial in order to contribute to the understanding of standard treatment for barefoot athletes with Sever's disease and improve patient outcomes by affecting clinical practice. In light of the paucity of information on and the importance of optimizing patient outcomes to improve quality of life and maintain an active lifestyle for young barefoot athletes, this prospective, randomized treatment study will compare the effectiveness of two braces in decreasing pain severity in barefoot athletes diagnosed with Sever's disease.

02

Conditions studied

  • Sever's Disease
03

In context

Lead sponsor

University of Colorado, Denver is the lead sponsor of 1,538 studies on the registry; 318 are open to participants now.

Of its 146 completed or terminated interventional studies of FDA-regulated products, 92 (63%) have results posted.

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

04

Who can participate

Ages eligible
8 Years to 14 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

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

  1. Age 8-14 years
  2. Participate in barefoot sports including: martial arts, dance, gymnastics, or acrobatics
  3. Clinical diagnosis of Sever's or calcaneal apophysitis

Exclusion criteria

Exclusion Criteria:

  1. History of foot/ankle surgery
  2. History of rheumatologic diagnoses
  3. Prisoners,
  4. pregnant females,
  5. Individuals with limited decision-making capacity
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Care provider, Investigator, Outcomes assessor)
Enrollment
43 participants (actual)

Study arms

  • Active comparator
    Cheetah Heel Cup

    Subjects randomly assigned to this group will receive the Cheetah Heel Cup at their initial visit.

    Device: Cheetah Heel Cup

  • Active comparator
    The X Brace

    Subjects randomly assigned to this group will receive the X Brace at their initial visit.

    Device: The X Brace

Interventions

  • DeviceCheetah Heel Cup

    The Cheetah Heel Cup is composed of a rubber waffle that cups the athlete's heel, secured in place by a neoprene sleeve.

  • DeviceThe X Brace

    The X Brace is composed of one thick elastic band that is wrapped around the athlete's arch of the foot. A second band is wrapped around the back of the heel, crossed under the foot, and secured to the thicker band on the bottom of the foot.

06

What researchers measure

Primary outcomes

  1. Changes in the Oxford Ankle Foot Questionnaire for Children (OxAFQ-C) Scores

    The OxAFQ-C is used to measure subjective well-being for child patients (aged 5-16) affected by foot and ankle conditions using issues that are considered important to children. There are three domains to the OxAFQ-C: physical, school and play, and emotional well-being. The investigators will calculate the difference in OxAFQ-C Scores which range from 0 to 100 with higher scores indicating better functioning and higher well-being.

    Time frame: Baseline and 3 months

Secondary outcomes

  1. Changes in the Visual Analog Scale Pain Score

    The Visual Analog Scale pain score is on a scale from 0 (no pain) to 100 (most severe pain). The investigators will calculate the difference in Visual Analog Scale Pain Scores.

    Time frame: Baseline and 3 months

07

Results

Posted May 25, 2022

Participant flow

Participant flow — Overall Study
MilestoneCheetah Heel CupThe X Brace
Started2122
Completed1616
Not completed56

Outcome measures

PrimaryChanges in the Oxford Ankle Foot Questionnaire for Children (OxAFQ-C) Scores

The OxAFQ-C is used to measure subjective well-being for child patients (aged 5-16) affected by foot and ankle conditions using issues that are considered important to children. There are three domains to the OxAFQ-C: physical, school and play, and emotional well-being. The investigators will calculate the difference in OxAFQ-C Scores which range from 0 to 100 with higher scores indicating better functioning and higher well-being.

Time frame:
Baseline and 3 months
Reported as:
Mean · score on a scale
Changes in the Oxford Ankle Foot Questionnaire for Children (OxAFQ-C) Scores
score on a scaleCheetah Heel CupThe X Brace
Physical0.27 ± 0.220.22 ± 0.18
School and play0.19 ± 0.190.18 ± 0.25
Emotional wellbeing0.13 ± 0.080.05 ± 0.11
SecondaryChanges in the Visual Analog Scale Pain Score

The Visual Analog Scale pain score is on a scale from 0 (no pain) to 100 (most severe pain). The investigators will calculate the difference in Visual Analog Scale Pain Scores.

Time frame:
Baseline and 3 months
Reported as:
Mean · score on a scale
Changes in the Visual Analog Scale Pain Score
score on a scaleCheetah Heel CupThe X Brace
At rest-9.5 ± 23.1-7.4 ± 14.5
Daily living activities-25.4 ± 30.3-23.6 ± 23.2
During sports-42.4 ± 30.5-36.1 ± 25.8

Adverse events

Collected over 3 months. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Cheetah Heel Cup0/21 (0%)0/21 (0%)1/21 (4.8%)
The X Brace0/22 (0%)0/22 (0%)1/22 (4.5%)
Most frequent other events
Most frequent other events
EventCheetah Heel CupThe X Brace
Heel pain with braceProduct Issues1/210/22
No improvement in pain with braceProduct Issues0/211/22

Baseline characteristics

Baseline characteristics data was only collected for participants who completed the study.

Age, Continuous
Age, Continuous(years)Cheetah Heel CupThe X BraceTotal
Mean10.6 ± 1.610.1 ± 1.610.4 ± 1.6
Sex: Female, Male
Sex: Female, Male(Participants)Cheetah Heel CupThe X BraceTotal
Female141529
Male213
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Cheetah Heel CupThe X BraceTotal
Hispanic or Latino112
Not Hispanic or Latino151530
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Cheetah Heel CupThe X BraceTotal
American Indian or Alaska Native011
Asian112
Native Hawaiian or Other Pacific Islander000
Black or African American213
White111122
More than one race224
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(participants)Cheetah Heel CupThe X BraceTotal
United States161632
Height
Height(cm)Cheetah Heel CupThe X BraceTotal
Mean138.2 ± 10.7138.6 ± 9.0138.4 ± 10
Weight
Weight(kg)Cheetah Heel CupThe X BraceTotal
Mean32.7 ± 7.631.4 ± 5.232.05 ± 6.4
Diagnosed with Seber's disease
Diagnosed with Seber's disease(Participants)Cheetah Heel CupThe X BraceTotal
Count of participants358

1 further baseline measures are reported on the registry.

08

Study locations

1 site
  • Children's Hospital Colorado
    Aurora, Colorado 80045, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Mar 25, 2020

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — No sharing. Data is stored in RedCAP and will only be available for listed authors.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 25, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03494647
Responsible party
Sponsor
First posted
Apr 11, 2018
Start date
Apr 18, 2018
Primary completion
Nov 21, 2021
Completion
Nov 21, 2021
Results posted
May 25, 2022
Last update
May 25, 2022

Study contacts

Emily A Stuart, MD
principal investigator · Children's Hospital Colorado

Oversight

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

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This study is completed, as verified in Apr 2022. You cannot join it, but the record below documents what was studied.

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