NCT06534073

Brief Summary

The therapeutic plan for certain pathologies in the adult population typically includes the performance of moderate physical activity aimed at preventing cardiovascular risk due to sedentary lifestyle, improving muscle tone and balance to prevent falls, enhancing bone health, and maintaining proper functional and mental health state. However, this activity can be hindered by pain arising from musculoskeletal injuries of low or moderate significance. One such injury is metatarsalgia, characterized by acute or chronic pain in the plantar area of the forefoot due to an overload of plantar pressure. It affects one or several central metatarsals and their respective metatarsophalangeal joints. Metatarsalgia is a highly prevalent pathology (up to 83%) in patients aged 60 or older and negatively impacts their quality of life. To alleviate plantar pressure in the affected area, metatarsal offloading devices are commonly used, which can now be integrated into socks or stockings. This integration aids in pain reduction through an everyday, easy-to-use item. However, only preliminary results of their effectiveness exist, and are in a standard model without customization for the patient's foot. Therefore, the goal is to identify different plantar pressure patterns in a sample of female patients over 55 years with metatarsalgia and design personalized three-dimensional plantar elements that can be integrated into the sock's structure to reduce over pressure and improve the clinical picture. A prior evaluation of pain (Foot Pain and Disability Index), impact on quality of life (SF-12 questionnaire), assessment of physical activity (IPAQ), and baropodometric evaluation with instrumented Pedar® insoles (Novel, Germany) will be conducted. This will characterize the patterns of plantar pain. Using 3D scanning of the foot, a personalized three-dimensional element for each plantar pain pattern will be designed to relieve this excess load, and will be integrated into the body of the sock through weaving, thermofusion, or thermosealing. This sample of patients with metatarsalgia will be randomly divided into three groups, who for a period of six months will wear the offloading sock model, personalized plantar supports with selective offloading, or a stabilizing element for the affected metatarsal head that the patient can apply and remove themselves. After these six months, plantar pain, quality of life, and physical activity levels will be re-evaluated in the three groups to determine the potential efficacy of the experimental sock compared to the best possible treatment, insoles, and another common element such as alignment devices. The offloading sock would provide a personalized solution for each patient, requiring no adaptation or frequent replacement, thus creating better adherence to treatment. The number of effective treatment usage hours would increase since socks are part of the patients' regular attire. Additionally, associated costs would be reduced, as there would be no need for frequent replacement of removable pads, stabilizing devices, or regular revisions to adjust orthopedic insoles.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
180

participants targeted

Target at P75+ for not_applicable

Timeline
20mo left

Started Oct 2025

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

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 Progress27%
Oct 2025Dec 2027

First Submitted

Initial submission to the registry

July 25, 2024

Completed
8 days until next milestone

First Posted

Study publicly available on registry

August 2, 2024

Completed
1.2 years until next milestone

Study Start

First participant enrolled

October 1, 2025

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Expected
Last Updated

May 4, 2026

Status Verified

April 1, 2026

Enrollment Period

3 months

First QC Date

July 25, 2024

Last Update Submit

April 28, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Numeric Pain Rating Score 11

    Pain under the metatarsal heads of the feet, using the Numeric Pain Rating Score 11 (NPRS-11), in which the minimum value is 0 (no pain) and the maximum value is 10 (the worst imaginable pain).

    4 weeks

Study Arms (3)

Socks

EXPERIMENTAL

The intervention will be the daily use of socks with the integration of the customized orthotic element.

Device: Socks

Standard device

OTHER

The intervention will be the daily use of external orthotic elements (to be put on and taken off daily) and of standard manufacture.

Device: Standard device

Foot orthoses

OTHER

The participants will receive completely personalized plantar supports integrating the relief element.

Device: Foot orthoses

Interventions

SocksDEVICE

Plantar orthotic elements will be designed, according to the participants' previous baropodometric pattern, to alleviate pathological plantar pressure. These elements will be integrated into commonly worn items by patients, such as stockings or socks.

Socks

Removable device of digital alignment to stabilize and unload the affected metatarsophalangeal joint. They do not require frequent replacement as they are washable and reusable elements.

Standard device

Custom-made foot orthoses.

Foot orthoses

Eligibility Criteria

Age55 Years+
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Female sex;
  • Age ≥ 55 years;
  • Experiencing moderate to severe pain in the plantar area of the forefoot;
  • Presenting hyperkeratosis under the central metatarsal heads;
  • Presenting pre-dislocation syndrome of the second or third metatarsophalangeal joint.

You may not qualify if:

  • Present cognitive deterioration that impedes the proper development of the study;
  • Have undergone previous osteoarticular surgeries on the feet;
  • Diagnosis of rheumatoid arthritis with involvement in the metatarsophalangeal joints of the foot;
  • Present symptoms compatible with Morton's neuritis;
  • Use of walking aids;
  • Are under treatment with insoles;
  • Refuse the use of designated socks or plantar supports during the follow-up period.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Facultad de Enfermería, Fisioterapia y Podología

Seville, Seville, 41008, Spain

Location

MeSH Terms

Conditions

Metatarsalgia

Interventions

Foot Orthoses

Condition Hierarchy (Ancestors)

Foot DiseasesMusculoskeletal DiseasesJoint DiseasesPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Orthotic DevicesOrthopedic EquipmentSurgical EquipmentEquipment and Supplies

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

July 25, 2024

First Posted

August 2, 2024

Study Start

October 1, 2025

Primary Completion

December 31, 2025

Study Completion (Estimated)

December 31, 2027

Last Updated

May 4, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

It is planned that the datasets generated during the project will be deposited in the institutional repository of the University of Extremadura and the University of Seville, whose metadata are aggregated to RECOLECTA of the Fundación Española para la Ciencia y la Tecnología (FECYT) and OpenAIRE Explore. The repository uses the generic Dublin Core metadata standard for dataset description and provides a handle as a permanent identifier. Data that contains potentially identifiable information about human subjects will not be publicly shared. And they cannot be disclosed until the patents related to this research are managed. In all activities carried out during this project, the fundamental principles of research integrity will be respected, following the Code of Good Research Practices of the University of Extremadura and the University of Seville, and all necessary procedures will be followed to comply with current data protection legislation.

Shared Documents
SAP, CSR

Locations