ClinicalTrials.gg
RecruitingNCT07688876Updated Jul 7, 2026

Pulsed Radiofrequency Versus 5% Dextrose Injection in Chronic Plantar Fasciitis

An interventional study of Ultrasound-Guided Pulsed Radiofrequency Treatment and Ultrasound-Guided 5% Dextrose Injection in Chronic Plantar Fasciitis, Chronic Heel Pain and Foot Pain, sponsored by Ankara City Hospital Bilkent. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-07-07.

Sponsored by Ankara City Hospital Bilkent · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 5 months after the study started (first participant enrolled Jan 2026, registered Jun 2026).
  • Started Jan 2026; still recruiting 10 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 42 studies in Fasciitis, Plantar with a site in Turkey — 15 open to participants now, 16 under way, none of them phase 3. Fasciitis, Plantar · Turkey.

Planned enrollment
17th of 28
50 · median 57
Started
2026
with 8 others
No phase
28 of 42
10 open now
Primary completion
2027-01
later than 12 of 15 live
Registered
36th of 42
by date
Lead sponsor
3 of 42
Ankara City Hospital Bilkent

Among the 42 studies in Fasciitis, Plantar with a site in Turkey, this one is the 17th largest by planned enrollment of the 28 interventional ones that give a count, is one of 9 that started in 2026, is one of 28 with no phase, reaches primary completion later than 12 of the 15 other live ones, and was the 36th registered.

Fasciitis, Plantar

223 studies on the registry are indexed under Fasciitis, Plantar; 58 are open to participants now.

This study's planned enrollment of 50 is below the median of 56 across 194 interventional studies indexed under Fasciitis, Plantar.

Browse Fasciitis, Plantar studies →

Open to participants now

15 of the 42 studies in Fasciitis, Plantar with a site in Turkey are open now, in 1 country. Each count lists the studies.

All 15 open studies →

Where they have run

Who these studies take

Of the 29 Fasciitis, Plantar studies recruiting now, 5 (17%) set no upper age limit and 21 (72%) stop at 75 or younger; 0 take children under 18; 4 take healthy volunteers.

This study: 18 Years to 70 Years · all sexes · no healthy volunteers.

The full table on the hub →
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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 42 studies in Fasciitis, Plantar with a site in Turkey, or all of them as a file.
02

Study summary

This prospective, two-center, randomized controlled clinical trial aims to compare the effectiveness of ultrasound-guided pulsed radiofrequency and 5% dextrose injection in patients with chronic plantar fasciitis. Eligible participants will be randomized into two parallel groups. One group will receive ultrasound-guided pulsed radiofrequency treatment, and the other group will receive ultrasound-guided 5% dextrose injection using the peppering technique. All participants will receive a home-based plantar fascia stretching exercise program. Outcomes will be assessed at baseline, 3 weeks, 6 weeks, and 12 weeks after treatment. The primary outcome will be pain intensity measured by the Numeric Rating Scale. Secondary outcomes will include foot function, activity-related pain, ankle-hindfoot function, and health-related quality of life.

Read the detailed description

Plantar fasciitis is one of the most common causes of chronic heel pain in adults. It may impair walking pattern, daily activities, social life, and work-related functioning. Although conservative treatments are commonly used as first-line therapy, symptoms may become chronic in a considerable proportion of patients.

Dextrose injection is a regenerative injection treatment used in chronic musculoskeletal pain conditions. It is thought to stimulate local tissue healing responses through controlled inflammatory and proliferative mechanisms. Pulsed radiofrequency is a minimally invasive, non-neurodestructive radiofrequency technique used for pain control. Both pulsed radiofrequency and dextrose injection are used in clinical practice for resistant chronic plantar fasciitis; however, comparative data between these two approaches are limited.

This study will be conducted as a prospective, two-center, two-arm, parallel-group randomized controlled trial in the Physical Medicine and Rehabilitation clinics of Ankara Bilkent City Hospital and Adana City Hospital. Participants with chronic plantar fasciitis will be randomized in a 1:1 ratio using the sealed-envelope method. The investigator responsible for randomization will know the allocation, while the outcomes assessor will be blinded to treatment allocation. Blinding of the interventionists will not be possible due to the nature of the procedures.

Participants in the pulsed radiofrequency group will receive ultrasound-guided pulsed radiofrequency treatment at baseline. Participants in the 5% dextrose group will receive ultrasound-guided 5% dextrose injection around the medial calcaneal insertion of the plantar fascia using the peppering technique, with 0.1-0.2 mL administered at each entry point. Dextrose injections will be performed in three sessions at 3-week intervals.

All participants will receive a home-based plantar fascia stretching exercise program. Exercises will be demonstrated by a physiotherapist, and participants will be instructed to perform the exercises twice daily for 12 weeks. Participants will be monitored for possible adverse events or complications for at least 30 minutes after the procedure. Clinical outcomes will be assessed at baseline, 3 weeks, 6 weeks, and 12 weeks.

03

Conditions studied

  • Chronic Plantar Fasciitis
  • Chronic Heel Pain
  • Foot Pain

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Keywords

  • Pulsed radiofrequency
  • Radiofrequency treatment
  • Dextrose injection
  • Prolotherapy
  • Ultrasound-guided injection
  • Plantar fascia
  • Chronic heel pain
  • Numeric Rating Scale
  • Foot Function Index
  • AOFAS score
  • Nottingham Health Profile
04

Who can participate

Ages eligible
18 Years to 70 Years
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

  • Diagnosis of chronic plantar fasciitis based on medical history and physical examination
  • Heel pain resistant to conservative treatment for at least 12 weeks
  • Age between 18 and 70 years
  • Willingness to participate in the study and provide written

Exclusion criteria

Exclusion Criteria:

  • Congenital or acquired disease that may impair or prevent foot function, such as rheumatoid arthritis, hemiplegia, congenital foot deformity, traumatic foot or leg amputation, or fracture sequelae
  • Local infection or skin disease at the treatment site
  • Bleeding disorder or use of anticoagulant medication within the last week
  • Disease causing mental dysfunction, such as uncontrolled Parkinson disease or Alzheimer disease
  • Previous surgery for plantar fasciitis
  • Refusal to participate in the study or inability to provide
  • Failure to attend follow-up visits after treatment
  • Request to withdraw from the study
  • Pregnancy or suspected pregnancy
  • Presence of a cardiac pacemaker
  • History of epilepsy
  • Active or previous
  • Rheumatologic disease
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
50 participants (estimated)

Study arms

  • Experimental
    Ultrasound-Guided Pulsed Radiofrequency Treatment

    Participants in this group will receive ultrasound-guided pulsed radiofrequency treatment at baseline. Clinical follow-up assessments will be performed at 3 weeks, 6 weeks, and 12 weeks. All participants will also receive a home-based plantar fascia stretching exercise program.

    Procedure: Ultrasound-Guided Pulsed Radiofrequency Treatment

  • Active comparator
    Ultrasound-Guided 5% Dextrose Injection

    Ultrasound-guided pulsed radiofrequency treatment will be applied for chronic plantar fasciitis. Participants will be monitored for at least 30 minutes after the procedure for possible adverse events or complications.

    Procedure: Ultrasound-Guided 5% Dextrose Injection

Interventions

  • ProcedureUltrasound-Guided Pulsed Radiofrequency Treatment

    Ultrasound-guided pulsed radiofrequency treatment will be applied for chronic plantar fasciitis. Participants will be monitored for at least 30 minutes after the procedure for possible adverse events or complications.

  • ProcedureUltrasound-Guided 5% Dextrose Injection

    Ultrasound-guided 5% dextrose injection will be applied around the medial calcaneal insertion of the plantar fascia using the peppering technique, with 0.1-0.2 mL administered at each entry point. The treatment will consist of three sessions performed at 3-week intervals.

06

What researchers measure

Primary outcomes

  1. Change in Heel Pain Intensity Assessed by Numeric Rating Scale

    Heel pain intensity will be assessed using the Numeric Rating Scale. Resting pain, pain during plantar fascia stretching, and pain with pressure will be evaluated on an 11-point scale from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate greater pain intensity.

    Time frame: Baseline, 3 weeks, 6 weeks, and 12 weeks after treatment

Secondary outcomes

  1. Change in Activity-Related Pain Assessed by the Roles and Maudsley Score

    Activity-related heel pain and functional status will be assessed using the Roles and Maudsley Score. The score ranges from 1 to 4, with lower scores indicating better clinical status and higher scores indicating worse pain and functional limitation.

    Time frame: Baseline, 3 weeks, 6 weeks, and 12 weeks after treatment

  2. Change in Foot Function Assessed by the Foot Function Index

    Foot-related pain, disability, and activity limitation will be assessed using the Foot Function Index. The scale includes pain, disability, and activity limitation subscales. Scores are converted to a 0-100 scale, with higher scores indicating greater pain, disability, and activity limitation.

    Time frame: Baseline, 3 weeks, 6 weeks, and 12 weeks after treatment

  3. Change in Ankle-Hindfoot Function Assessed by the American Orthopaedic Foot and Ankle Society Score

    Ankle-hindfoot function will be assessed using the American Orthopaedic Foot and Ankle Society Ankle-Hindfoot Score. The score evaluates pain, function, and alignment. The total score ranges from 0 to 100, with higher scores indicating better ankle-hindfoot function.

    Time frame: Baseline, 3 weeks, 6 weeks, and 12 weeks after treatment

  4. Change in Health-Related Quality of Life Assessed by the Nottingham Health Profile

    Health-related quality of life will be assessed using the Nottingham Health Profile. The questionnaire includes six domains: energy level, pain, emotional reactions, sleep, social isolation, and physical activity. The total score ranges from 0 to 600, with higher scores indicating worse perceived health status.

    Time frame: Baseline, 3 weeks, 6 weeks, and 12 weeks after treatment

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jan 2026 (actual). Primary completion is estimated for Jan 2027, 12 months after the start.

Of 104 non-industry interventional studies with no phase under Fasciitis, Plantar, half reached primary completion within 11 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 21. This study's planned 12 months is close to that.

Counting every sponsor, half of 109 studies reached it within 11 months; a quarter within 6 and three quarters within 22.

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

Registered
Jun 30, 2026
First posted
Jul 7, 2026
StartActual
Jan 1, 2026
Primary completionEst.
Jan 1, 2027
CompletionEst.
Jan 1, 2027
Last update
Jul 7, 2026
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 Jul 7, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07688876
Responsible party
Esra Ülgen Kıratlıoğlu (MD, Ankara City Hospital Bilkent) — Principal investigator
First posted
Jul 7, 2026
Start date
Jan 1, 2026
Primary completion
Jan 1, 2027 (estimated)
Completion
Jan 1, 2027 (estimated)
Last update
Jul 7, 2026

Study contacts

Esra Ülgen Kıratlıoğlu, MD
Contact
esraulgen@gmail.com
+905079614194

Oversight

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

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