CClinicalTrials.gg
RecruitingNCT06995443REGAINUpdated Jan 30, 2026

Breast Cancer and Chemobrain : Effects of Photobiomodulation on the Improvement of Perceived Cognitive Impairment

An interventional study of Photobiomodulation in Oncology, Support Care and Cognitive Disorders, sponsored by Centre Hospitalier de Valenciennes. Recruiting at 1 site in France. Open to female participants. Per ClinicalTrials.gov, last updated 2026-01-30.

Sponsored by Centre Hospitalier de Valenciennes · Not applicable, Interventional, and Other

From the registry’s dates

  • Started Jun 2025; still recruiting 1 year 3 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
200
Allocation
Randomized
Sex
Female
01

Study summary

Breast cancer is one of the most common cancers in metropolitan France, with over 60,000 new cases in 2023. Mostly a female cancer, it can affect a young population, with around 20% of breast cancers occurring in women under 50. Treatment is mainly based on surgery, chemotherapy, radiotherapy, targeted therapies and hormone therapy. Although chemotherapy is not systematically used, it remains a frequent treatment option. While chemotherapy makes a major contribution to curing cancer, it is also a source of potentially disabling side effects for survivors.

Chemotherapy can interfere with the normal functioning of the central nervous system, leading to cognitive impairment. The number of people potentially affected by chemobrain is estimated at several tens of millions worldwide. There is no recommended treatment for people with chemobrain. Several avenues have been explored, with very limited results. Photobiomodulation (PBM) is a non-medicinal treatment technique that combines all the biological, athermic and non-cytotoxic effects of tissue exposure to non-ionizing sources of red and infrared light. Several studies have demonstrated the beneficial effects of cortical stimulation by photobiomodulation on memory (increased angiogenesis, increased oxygenation of brain tissue via vasodilatation, and increased mitochondrial ATP production). These positive biological effects are likely to ameliorate the undesirable effects of chemotherapy, and consequently the post-chemotherapy cognitive disorders that ensue.

02

Conditions studied

  • Oncology
  • Support Care
  • Cognitive Disorders

Keywords

  • Cognitive disorders
  • Photobiomodulation
  • Breast cancer
  • oncology
03

In context

Neoplasms

9,365 studies on the registry are indexed under Neoplasms; 2,489 are open to participants now.

This study's planned enrollment of 200 is above the median of 50 across 7,253 interventional studies indexed under Neoplasms.

Browse Neoplasms studies →

Lead sponsor

Centre Hospitalier de Valenciennes is the lead sponsor of 13 studies on the registry; 7 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • Women aged 18 and over
  • Having completed chemotherapy (intravenous) for breast cancer (any stage) less than 12 months prior to inclusion
  • Having a perceived cognitive complaint that appeared during or after (\< 3 months) chemotherapy treatments (no restriction on the care protocol used) and confirmed by a FACT-Cog score compatible with a subjective cognitive disorder (score \< 117 for patients aged 18 to 49; score \< 113 for patients aged 50 to 69; score \<105 for patients aged 70 and over)
  • Patient eligible for photobiomodulation sessions
  • Patient with sufficient command of the French language to complete the study questionnaries
  • Patient having given written consent to participate in the trial
  • Socially insured patient
  • Patient willing to comply with all study procedures and duration

Exclusion criteria

Exclusion Criteria:

  • Known cognitive disorders prior to chemotherapy treatment
  • Patients with psychiatric or psychobehavioral disorders incompatible with photobiomodulation sessions
  • Patients who, in the 12 months prior to inclusion or at the time of inclusion, have already received photobiomodulation treatment involving "whole body" therapy (photobiomodulation in a phototherapy booth).
  • Patient having previously received photobiomodulation with cortical stimulation (panel or helmet) with no time limit.
  • Patient taking or having received capecitabine
  • Patients taking part in a protocol involving a drug likely to affect cognitive performance (on the investigator's advice).
  • Patients suffering from claustrophobia
  • Patient unable to read and/or unable to complete a questionnaire, in the opinion of the investigator
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
200 participants (estimated)

Study arms

  • Experimental
    Usual care with photobiomodulation sessions

    Photobiomodulation : 1 session per week during 12 weeks Visit 1 to Visit 4 : Photobiomodulation (NOVOTHOR) + cortical stimulation (VEILIGHT) Visit 5 to 12 : Cortical stimulation Visit 13 (V12 + 7 days +/- 3 days) : FACT-COG / anxiety measure / depression measure / Likert scale / satisfaction Visit 6 months (V1 + 6M +/- 2 weeks) : questionnary FACT-COG

    Other: Photobiomodulation

  • No intervention
    Usual care

Interventions

  • OtherPhotobiomodulation

    12 sessions of photobiomodulation (1 per week) Visit 1 to 4 : photobiomodulation (NOVOTHOR) + cortical stimulation (VEILIGHT) Visit 5 to 12 : cortical stimulation (VEILIGHT)

06

What researchers measure

Primary outcomes

  1. To compare, among women aged 18 and over who had undergone chemotherapy for breast cancer and had subjective cognitive impairment post-chemotherapy, the rate of those showing improvement in cognitive impairment with or without photobiomodulation (cortica

    Patients with an evolution subjective cognitive performance between the FACT-Cog performed at inclusion and that at the end of follow-up (S13)

    Time frame: From enrollment to the end of follow-up visit at 13 weeks (V13 = V12 + 7d +/- 3d)

Secondary outcomes

  1. Compare the rate of patients considered anxious in each group at inclusion (T0) and at the end of the follow-up period (S13)

    For patients aged 18 to 65: HAD anxiety score (first 7 questions, score variable from 0 to 21). For patients \> 65 years: GAI FC SF score (5 questions, score variable from 0 to 5). The cut-off will be 8 for the HAH anxiety score and 3 for the GAI FC SF

    Time frame: From enrollment to the end of follow-up visit at 13 weeks (V13 = V12 + 7d +/- 3d)

  2. To compare the rate of patients considered depressed in each group at inclusion (T0) and at the end of the follow-up period (S13)

    For patients aged 18 to 65: HAD depression score (last 7 questions, score variable from 0 to 21). For patients \> 65 years: mini-GDS score (5 questions, score variable from 0 to 5). The cut-off will be 8 for the HAD anxiety score and 1 for the GAI FC SF

    Time frame: From enrollment to the end of follow-up visit at 13 weeks (V13 = V12 + 7d +/- 3d)

  3. Compare perceived sleep quality in each group at inclusion (T0) and at the end of the follow-up period (13)

    Perceived sleep on a Likert scale by answering the question "How would you rate the quality of your sleep: very good, good, bad, very bad"

    Time frame: From enrollment to the end of follow-up visit at 13 weeks (V13 = V12 + 7d +/- 3d)

  4. Compare perceived health in each group at inclusion (T0) and at the end of the follow-up period (S13)

    Perceived health on a Likert scale by answering the question "How would you rate your health: very good, good, bad, very bad"

    Time frame: From enrollment to the end of follow-up visit at 13 weeks (V13 = V12 + 7d +/- 3d)

  5. Describe in the experimental group only the evolution of the FACT-Cog score at the end of photobiomodulation treatment (S13) and at 6 months

    Overall FACT-Cog score at S13 and 6-month follow-up

    Time frame: From follow-up visit at 13 weeks and 6 months after the first session of photobiomodulation (V1 + 6M +/-2W)

  6. Evaluate the level of satisfaction of patients in the intervention group regarding the course of PBM sessions

    Level of satisfaction with various aspects of the sessions on a Likert scale by answering the following questions: \- Concerning the frequency of photobiomodulation sessions: "How would you rate your satisfaction on a scale from 0 (not satisfied at all) to 10 (completely satisfied)? \- Concerning duration: "How would you rate your satisfaction on a scale from 0 (not satisfied at all) to 10 (completely satisfied)? \- Concerning the organization of photobiomodulation sessions: "How would you rate your satisfaction on a scale from 0 (not satisfied at all) to 10 (completely satisfied)?

    Time frame: At the follow-up visit V13 (=V12 + 7d +/- 3d)

07

Study locations

1 of 1 sites recruiting
  • Centre Hospitalier de Valenciennes
    Valenciennes, 59300, France
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 30, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06995443
Lead sponsor
Centre Hospitalier de Valenciennes
Responsible party
Sponsor
First posted
May 29, 2025
Start date
Jun 13, 2025
Primary completion
Dec 2027 (estimated)
Completion
Dec 2027 (estimated)
Last update
Jan 30, 2026

Study contacts

Lidvine GODAERT, MD
Contact
godaert-l@ch-valenciennes.fr
03.27.14.91.19

Oversight

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

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion