Treatment of Gastrocnemius Tightness and Subsequent Chronic Plantar Fasciitis with Botulinum Toxin a
PLATOX
Botulinum Toxin Injection As Treatment for Proximal Medial Gastrocnemius Muscle Tightness with Subsequent Chronic Plantar Fasciitis - a Prospective Clinical Cohort Study
1 other identifier
observational
40
1 country
1
Brief Summary
This prospective clinical cohort study will follow 40 patients who recieve botulinum toxin A treatment for proximal medial gastrocnemius tightness with subsequent Chronic Plantar Fasciitis for two years. Three injections of botulinum toxin (75IU) will be administered with intervals of three months. Participants will be followed at baseline, 3 months, 6 months, 1 year and 2 years with Patient Related Outcome Measures (PROMS) and physical test (Ergotest and ankle dorsiflexion).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Jan 2022
Longer than P75 for all trials
1 active site
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
January 13, 2022
CompletedFirst Submitted
Initial submission to the registry
January 20, 2022
CompletedFirst Posted
Study publicly available on registry
February 1, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2026
CompletedMarch 30, 2025
March 1, 2025
4 years
January 20, 2022
March 25, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Manchester Oxford Foot Questionnaire
MOxFQ (Manchester Oxford Foot Questionnaire) is a PROM consisting of 16 questions in three domains (pain, walking/standing, social interaction) leading to a total score from 0-100, 0 being the best possible score. It is validated as a reliable tool to measure results of foot and ankle surgery
2 years
Secondary Outcomes (6)
Achilles function test battery
2 years
Ankle dorsiflexion
2 years
Visual Analogue Scale (VAS)
2 years
EQ5D5L
2 years
AOFAS (American Orthopeadic Foot and Ancle Society) hindfoot score
2 years
- +1 more secondary outcomes
Study Arms (1)
Botulinum toxin A injection
Patients will receive a total of 3 -three - injections of 75 IU Botulinum Toxin A in the proximal medial gastrocnemius muscle. Treatments will be performed by a specialist in neurology as a Ultra-Sound guided injection into the proximal medial gastrocnemius muscle Injections will be administered at baseline, 3 months and 6 months.
Interventions
Eligibility Criteria
The population consists of patients who recieve routine care at our hospital.
You may qualify if:
- Age 18-75 years.
- Diagnosis plantar fasciitis verified clinically by an orthopaedic surgeon.
- Diagnosis verified by MRI. MRI criteria: Thickening of the plantar fascia, oedema in the calcaneus, pathological signal changes in the plantar fascia (35)
- Duration of symptoms must be at least 12 months prior to first BTA injection.
- Conventional Physical Therapy must have been tried at least three months without a significant reduction of symptoms in the affected foot.
You may not qualify if:
- Previously undergone surgery for plantar fasciitis.
- Patients with severe talocrural pathology or serious malalignment of foot and ankle
- Severely reduced peripheral circulation
- History of alcoholism, drug abuse, psychological or other emotional problems likely to jeopardize informed consent.
- Patients with a contraindication/non-compliance for MRI examination.
- History of allergic reaction/anaphylactic reaction or other contraindication to botulinum toxin.
- Not able to read and/or speak a Scandinavian language or English adequately.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Oslo University Hospital, Orthopedic Department Ullevål
Oslo, Oslo County, Norway
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- MD PhD
Study Record Dates
First Submitted
January 20, 2022
First Posted
February 1, 2022
Study Start
January 13, 2022
Primary Completion
January 1, 2026
Study Completion
January 1, 2026
Last Updated
March 30, 2025
Record last verified: 2025-03
Data Sharing
- IPD Sharing
- Will not share