NCT07637084

Brief Summary

This study evaluates the effect of photobiomodulation (PBM) therapy using a MLS® class IV laser on chronic pain and fatigue in patients with hypermobile Ehlers-Danlos Syndrome (hEDS). hEDS is a hereditary connective tissue disorder characterized by joint hypermobility, chronic pain, and debilitating fatigue, for which therapeutic options remain limited. Participants will receive 10 PBM sessions over 5 weeks (2 sessions per week), using red and near-infrared light (808 nm continuous + 905 nm pulsed) applied to painful areas identified at baseline. Pain (Visual Analogue Scale), multidimensional fatigue (MFI-20), and quality of life (EQ-5D-5L) will be assessed at baseline (T0), end of treatment (week 5), and follow-up (week 10). This is a pilot observational study - the first to document the effect of MLS® laser PBM in hEDS. No additional procedures beyond routine care are required.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
25

participants targeted

Target at below P25 for all trials

Timeline
13mo left

Started May 2026

Geographic Reach
1 country

1 active site

Status
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 Progress16%
May 2026Sep 2027

Study Start

First participant enrolled

May 26, 2026

Completed
9 days until next milestone

First Submitted

Initial submission to the registry

June 4, 2026

Completed
5 days until next milestone

First Posted

Study publicly available on registry

June 9, 2026

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2027

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2027

Last Updated

June 15, 2026

Status Verified

June 1, 2026

Enrollment Period

10 months

First QC Date

June 4, 2026

Last Update Submit

June 11, 2026

Conditions

Keywords

photobiomodulation; laser therapy; MLS laser; Ehlers-Danlos syndrome; chronic pain; fatigue; quality of life; observational study; pilot study

Outcome Measures

Primary Outcomes (1)

  • Change in chronic pain intensity

    Change in pain intensity measured by the Visual Analogue Scale (VAS, 0-10), representing average pain over the preceding week. A decrease of ≥ 1.5 points is considered clinically meaningful.

    Baseline (T0) to Week 5 (end of PBM treatment cycle)

Secondary Outcomes (3)

  • Durability of pain relief

    Week 5 to Week 10 (5 weeks post-treatment follow-up)

  • Change in multidimensional fatigue

    Baseline (T0), Week 5 (T5), and Week 10 (T10)

  • Change in health-related quality of life

    Baseline (T0), Week 5 (T5), and Week 10 (T10)

Other Outcomes (1)

  • Tolerability of PBM therapy

    Each session, from Week 1 to Week 5 (sessions 1 to 10)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adult patients with confirmed hypermobile Ehlers-Danlos Syndrome (hEDS), diagnosed according to the 2017 International Consortium criteria, presenting with chronic pain (≥ 3 months, VAS ≥ 4/10) and/or fatigue, followed in private outpatient practice at Centre Médical ISM, Boulogne-Billancourt, France. Patients are recruited consecutively among those already receiving photobiomodulation therapy as part of their routine care. No healthy volunteers are included.

You may qualify if:

  • Age ≥ 18 years
  • Confirmed diagnosis of hypermobile Ehlers-Danlos Syndrome (hEDS) according to 2017 International Consortium criteria
  • Chronic pain ≥ 3 months, average VAS score ≥ 4/10 over the preceding week
  • Stable analgesic treatment for ≥ 4 weeks (if any)
  • Follow-up at Centre Médical ISM, Boulogne-Billancourt
  • Informed and non-opposition signed

You may not qualify if:

  • Suspicious or malignant skin lesion on areas to be treated
  • Non-modifiable photosensitizing treatment
  • Pregnancy or breastfeeding
  • Photosensitive epilepsy
  • Simultaneous participation in another research protocol

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Centre Médical ISM

Boulogne-Billancourt, Île-de-France Region, 92100, France

RECRUITING

Related Publications (3)

  • Castori M, Camerota F, Celletti C, Danese C, Santilli V, Saraceni VM, Grammatico P. Natural history and manifestations of the hypermobility type Ehlers-Danlos syndrome: a pilot study on 21 patients. Am J Med Genet A. 2010 Mar;152A(3):556-64. doi: 10.1002/ajmg.a.33231.

    PMID: 20140961BACKGROUND
  • Malfait F, Francomano C, Byers P, Belmont J, Berglund B, Black J, Bloom L, Bowen JM, Brady AF, Burrows NP, Castori M, Cohen H, Colombi M, Demirdas S, De Backer J, De Paepe A, Fournel-Gigleux S, Frank M, Ghali N, Giunta C, Grahame R, Hakim A, Jeunemaitre X, Johnson D, Juul-Kristensen B, Kapferer-Seebacher I, Kazkaz H, Kosho T, Lavallee ME, Levy H, Mendoza-Londono R, Pepin M, Pope FM, Reinstein E, Robert L, Rohrbach M, Sanders L, Sobey GJ, Van Damme T, Vandersteen A, van Mourik C, Voermans N, Wheeldon N, Zschocke J, Tinkle B. The 2017 international classification of the Ehlers-Danlos syndromes. Am J Med Genet C Semin Med Genet. 2017 Mar;175(1):8-26. doi: 10.1002/ajmg.c.31552.

    PMID: 28306229BACKGROUND
  • Robijns J, Nair RG, Lodewijckx J, Arany P, Barasch A, Bjordal JM, Bossi P, Chilles A, Corby PM, Epstein JB, Elad S, Fekrazad R, Fregnani ER, Genot MT, Ibarra AMC, Hamblin MR, Heiskanen V, Hu K, Klastersky J, Lalla R, Latifian S, Maiya A, Mebis J, Migliorati CA, Milstein DMJ, Murphy B, Raber-Durlacher JE, Roseboom HJ, Sonis S, Treister N, Zadik Y, Bensadoun RJ. Photobiomodulation therapy in management of cancer therapy-induced side effects: WALT position paper 2022. Front Oncol. 2022 Aug 30;12:927685. doi: 10.3389/fonc.2022.927685. eCollection 2022.

    PMID: 36110957BACKGROUND

MeSH Terms

Conditions

Ehlers-Danlos SyndromeChronic PainFatigue Syndrome, ChronicFatigue

Condition Hierarchy (Ancestors)

Hemostatic DisordersVascular DiseasesCardiovascular DiseasesHemorrhagic DisordersHematologic DiseasesHemic and Lymphatic DiseasesSkin AbnormalitiesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesSkin Diseases, GeneticGenetic Diseases, InbornCollagen DiseasesConnective Tissue DiseasesSkin and Connective Tissue DiseasesSkin DiseasesPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsMuscular DiseasesMusculoskeletal DiseasesEncephalomyelitisNeuroinflammatory DiseasesNervous System DiseasesNeuromuscular DiseasesChronic DiseaseDisease AttributesPathologic Processes

Central Study Contacts

Lilian Lessedjina, M.D.

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
10 Weeks
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 4, 2026

First Posted

June 9, 2026

Study Start

May 26, 2026

Primary Completion (Estimated)

March 31, 2027

Study Completion (Estimated)

September 30, 2027

Last Updated

June 15, 2026

Record last verified: 2026-06

Data Sharing

IPD Sharing
Will not share

Locations