Clinical trial Recruiting at 1 site Observational Ages 18 to 75

Botulinum toxin A treatment for gastrocnemius tightness and chronic plantar fasciitis

Official title: Botulinum Toxin Injection As Treatment for Proximal Medial Gastrocnemius Muscle Tightness with Subsequent Chronic Plantar Fasciitis - a Prospective Clinical Cohort Study

Run by Oslo University Hospital · NCT05218785 · Data updated 2026-11-12

This study is testing if botulinum toxin A injections can help people with tight calf muscles and chronic plantar fasciitis feel better compared to standard surgery.

More Plantar Fascitis trials

Quick facts

Study typeObservational
Ages18 Years to 75 Years
SexAll
Enrollment40 (estimated)
SponsorOslo University Hospital
Academic / other
Locations1 site (Oslo, Oslo)
StatusRecruiting
StartedJanuary 13, 2022
Main results expectedJanuary 2026
Study endsJanuary 2026
Registry record updatedMarch 30, 2025
Trial IDNCT05218785 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18-75 with isolated gastrocnemius contracture and chronic plantar fasciitis who have not responded to at least three months of physical therapy.

Probably not a fit

Patients who have previously undergone surgery for plantar fasciitis or have severe foot and ankle malalignment may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This prospective clinical cohort study will follow 40 patients receiving botulinum toxin A injections for proximal medial gastrocnemius tightness, which is linked to chronic plantar fasciitis. Participants will receive three injections of 75IU at three-month intervals and will be monitored over two years using Patient Related Outcome Measures (PROMS) and physical tests. The study aims to evaluate the effectiveness of this treatment approach compared to traditional surgical methods. The main outcome measure will be the Manchester Oxford Foot Questionnaire (MOxFQ).

Why it matters

Potential benefit: If successful, this treatment could provide significant relief for patients suffering from chronic plantar fasciitis linked to gastrocnemius tightness.

How similar studies have gone: While traditional surgical methods have been well-studied, the use of botulinum toxin A for this specific condition is relatively novel and has shown promising results in preliminary studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion criteria:

1. Age 18-75 years.
2. An isolated gastrocnemius contracture must be verified with the Silfverskiölds test before inclusion.
3. Diagnosis plantar fasciitis verified clinically by an orthopaedic surgeon.
4. Diagnosis verified by MRI. MRI criteria: Thickening of the plantar fascia, oedema in the calcaneus, pathological signal changes in the plantar fascia (35)
5. Duration of symptoms must be at least 12 months prior to first BTA injection.
6. Conventional Physical Therapy must have been tried at least three months without a significant reduction of symptoms in the affected foot.

Exclusion criteria:

1. Previously undergone surgery for plantar fasciitis.
2. Patients with severe talocrural pathology or serious malalignment of foot and ankle
3. Severely reduced peripheral circulation
4. History of alcoholism, drug abuse, psychological or other emotional problems likely to jeopardize informed consent.
5. Patients with a contraindication/non-compliance for MRI examination.
6. History of allergic reaction/anaphylactic reaction or other contraindication to botulinum toxin.
7. Not able to read and/or speak a Scandinavian language or English adequately.

Where it's running

  • Oslo University Hospital, Orthopedic Department Ullevål
    Oslo, Oslo, Norway
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.