Brain Concussion Clinical Trial
Official title:
A Feasibility Study for a Randomized Controlled Trial on the Effectiveness of Early Physical Therapy Intervention for Patients With Dizziness After a Sports-Related Concussion
Therefore, the purpose of this pilot study is to determine the feasibility of conducting a
randomized clinical trial (RCT) on physical therapist treatment for dizziness after
sports-related concussion. The specific research question for this pilot RCT is: What is the
feasibility of conducting a RCT on athletes who have dizziness 10 or greater days after a
sports-related concussion to explore the effectiveness of directed vestibular
rehabilitation, neuromotor retraining, and/or manual physical therapy (PT) when compared to
sham treatment? The findings of this study (for both feasibility and effect size) will be
used to inform and direct revisions to the methods for a larger RCT on this population.
Primary Aims:
Specific Aim 1: Assess the feasibility of the following: recruitment and retention of
participants, required resources for project management, and assessment of patient safety.
Specific Aim 2: Estimate the size of the effect between skilled physical therapist
intervention and a sham treatment for the recovery rate for athletes with a concussion who
have dizziness 10 - 14 days post-concussion.
Study design: This study will be a pilot feasibility study of a RCT, randomized at the
individual level.
Subjects:
The population of interest includes athletes who are seen by the physicians from a Sports
Medicine Center (on site at Akron Children's Hospital (ACH) or at proxy locations, e.g.
Walsh University or North Canton Children's Hospital Clinic) with a sports-related
concussion. The specific population of interest is concussed patients who present for a
medical assessment with dizziness as measured by the Post-Concussion Symptom Scale (PCS).
Sample Size and Sampling: Because this is a pilot study exploring the feasibility of the
recruitment, retention and methods for a larger RCT, the sample is not intended to power a
full scale study. It is standard for a pilot study to include at least 12 participants per
arm of the study, however, because of the potential for loss to follow up the investigators
plan to enroll 20 subjects per treatment group.
Study Subject Selection and Definitions: All patients who present to a Sports Medicine
Center after an acute concussion (defined as any time between the event causing the
concussion and up to 14 days after concussion) will complete the PCS. Within this 22 item
scale, 7 items specify physical symptoms as components of the migraine cluster. These
symptoms include: headaches, visual problems, dizziness, noise-light sensitivity,
nausea/vomiting, balance problems, numbness/tingling. Although dizziness is the primary
patient complaint being targeted, these other symptoms within the migraine cluster may also
be present in addition to dizziness and may implicate a cervical, proprioceptive, and/or
vestibular injury. For this reason, patients who report symptoms in the migraine cluster
with one of the following criteria will be asked to enroll in the study at the initial
assessment:
1. An initial score of at least 3 on the 7 point Likert scale for dizziness as a singular
symptom OR
2. A score of 10 across the 7 items within the migraine cluster including a complaint of
dizziness with at a score of at least 1 on the 7 point Likert scale OR
3. If findings from the objective assessment conducted by the physician indicate that
postural/vestibular/ocular perception is abnormal.
Methods Allocation: At day10 after concussion, patients who enrolled in the study at their
initial medical visit will be contacted by e-mail through Qualtrics and will be asked to
complete the PCS a second time (if the patient sees the medical provider from Sports
Medicine between day 10 and day 14, this will done on that same day). If at day 10 - 14
after the concussion was sustained, the patient continues to report dizziness with a score
of at least 3 or a total score in the migraine cluster of at least 10 (including a score of
at least 1 for dizziness) he/she will be randomized into one of the treatment groups using a
random allocation sequence generator. If the patient does not meet the threshold of symptoms
at day 10 - 14, they will receive standard medical care from the Sports Medicine physicians
but will not be randomized into one of the PT treatment arms. One study investigator will be
responsible for assignment into the treatment groups using a 1:1 allocation ratio.
Blinding: This study will be conducted as a double-blind trial whereby the physicians in the
sports-medicine center, the patient participants, and their families will be blinded to the
treatment allocation (sham or skilled) of patients throughout the study time. Blinding here
is important to limit study bias because the physicians will determine one key outcome, the
timeframe for return to play, and the athletes will report on the second key outcome,
symptom severity on the PCS. The PTs performing the assessment and treatments will not be
blinded to the allocation of the patients as they will be delivering the intervention. The
same therapists will deliver both treatments (sham and skilled) based on allocation. Because
the PTs cannot be blinded to the allocation of treatment, they will not determine the
timeframe for return to play.
Patient follow-up: All patients allocated into one of the treatment arms will be followed
for 4 consecutive weeks or until they are released for return to play by the sports medicine
physician. All patients will continue to be followed by physicians in the sports medicine
practice (as that is the standard of care).
Patient safety: Because this study is challenging the rest paradigm and using a progressive
and active treatment to manage acute dizziness, it is not without risk. Patients will be
carefully monitored during each visit to determine their response to treatment. Since the
sham treatment incorporates no actual therapeutic activities, an exacerbation in symptoms is
not expected. The skilled treatment group is pragmatic, allowing the treating therapists to
determine the type and aggressiveness of each treatment session. This gives therapists the
ability to modify the activity using their expert clinical judgment. For all subjects in the
study, patient response between PT sessions will be monitored at the beginning of each PT
treatment. If patient symptoms increase between therapy sessions, greater than the standard
error of measure 6.3 points, treatment will be ceased and patients will be referred back to
Sports Medicine for follow up. All adverse events will be recorded.
;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Outcomes Assessor), Primary Purpose: Treatment
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