ClinicalTrials.gg
RecruitingNCT07260864rTMSUpdated Aug 20, 2026

Investigating the Effects of Repetitive Transcranial Magnetic Stimulation (rTMS) on the Brain in People With Fibromyalgia

An interventional study of rTMS in Fibromyalgia (FM), sponsored by University of Rochester. Recruiting at 1 site in United States. Open to female participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-08-20.

Sponsored by University of Rochester · Not applicable, Interventional, and Other

From the registry’s dates

  • Started Dec 2025; still recruiting 11 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
Female
01

Where this study stands

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

Among 369 studies in Fibromyalgia with a site in United States — 52 open to participants now, 63 under way, 2 of them phase 3. Fibromyalgia · United States.

Planned enrollment
268th of 320
20 · median 72
Started
2025
with 11 others
No phase
167 of 369
34 open now
Primary completion
2027-01
later than 22 of 62 live
Registered
350th of 369
by date

Among the 369 studies in Fibromyalgia with a site in United States, this one is the 268th largest by planned enrollment of the 320 interventional ones that give a count, is one of 12 that started in 2025, is one of 167 with no phase, reaches primary completion later than 22 of the 62 other live ones, and was the 350th registered.

Fibromyalgia

1,243 studies on the registry are indexed under Fibromyalgia; 256 are open to participants now.

Browse Fibromyalgia studies →

Open to participants now

52 of the 369 studies in Fibromyalgia with a site in United States are open now. Recruiting first, the newest first:

46 more — sign in →

All 52 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 160 Fibromyalgia studies recruiting now, 50 (31%) set no upper age limit and 96 (60%) stop at 75 or younger; 14 take children under 18; 35 take healthy volunteers.

This study: 18 Years to 65 Years · female · no healthy volunteers.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 369 studies in Fibromyalgia with a site in United States, or all of them as a file.
02

Study summary

The first goal of this study is to see how brain activity changes in people with fibromyalgia after they get a treatment called rTMS (repetitive transcranial magnetic stimulation). Researchers are looking at how the parts of the brain that control movement (called motor cortices) respond to this treatment.

The second goal is to find out if the changes in brain activity are different between the right and left sides of the brain, depending on which side gets the treatment.

Read the detailed description

The first aim of this study is to measure changes in fibromyalgia-related functional brain plasticity, as indicated by the functional "connectopy" of the right and left primary motor cortices in response to rTMS treatment. The second aim of this study is to explore whether changes in motor cortex connectopy differ between the right and left motor cortex (M1) following rTMS administered to each respective hemisphere.

03

Conditions studied

  • Fibromyalgia (FM)

Keywords

  • Transcranial Magnetic Stimulation
  • Chronic Pain
  • Nociplastic pain
  • Functional Magnetic Resonance Imaging
  • Motor Cortex
04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
Female
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

  • Female aged 18 to 65, right-handed, with no racial/ethnic restrictions.
  • A diagnosis of fibromyalgia by a qualified physician according to the American College of Rheumatology 2016 criteria
  • Must have a history of fibromyalgia pain for a duration ≥ 3 months, as it is included in the diagnostic criteria.
  • Must have pain intensity equal or greater than 4/10 on the numerical rating scale (NRS) at enrollment.
  • Concurrent chronic overlapping pain conditions (except migraine with aura), depression, and anxiety will be allowed when mild to moderate (Less than 31 on Beck Depression Inventory or less than 36 on Beck Anxiety Inventory), except in cases with psychotic or manic features.
  • Concomitant medication (except tricyclics, antipsychotic medications, bupropion, methadone, theophylline) and their doses for mood, pain and sleep disorders must be steady at least 4 weeks before enrolment and must be kept at a steady dosage during the trial.
  • Must be able to read and speak English and be willing to read and understand instructions as well as questionnaires.
  • Must be in generally stable health.
  • Must sign an document after explanation of the study documenting that they understand the purpose of the study, procedures to be undertaken, possible benefits, potential risks, and are willing to participate.

Exclusion criteria

Exclusion Criteria:

  • Inability to provide .
  • Age outside the studied range (i.e., \< 18, > 65).
  • Patients planning to change their medications during trial.
  • Participants who are currently receiving other alternative therapies during trial (e.g., physiotherapy, acupuncture).
  • History of receiving TMS, transcranial direct current stimulation (tDCS), or electroconvulsive therapy (ECT).
  • Evidence of rheumatologic disorders, diseases, taking treatment, severe or unstable cardiac diseases.
  • Fibromyalgia must be the primary complaint; hence patients cannot have another main source of pain (e.g., osteoarthritis). Patients will be asked to shade all the areas in which they experience pain on a body map. If they shade areas other than typical fibromyalgia pain, we will discuss any previous diagnosis, the intensity and chronicity of pain, and exclude them if chronic pain in any area outside the condition in to be studied is confirmed.
  • Involvement in litigation regarding their pain or having a disability claim or receiving workman compensation or seeking either because of their pain.
  • Any history of hemorrhagic or thrombotic stroke.
  • History of schizophrenia, schizoaffective disorder, bipolar disorders, mania, hypomania, eating disorders, or any psychiatric illness with psychotic features (major depressive disorder, mild to moderate without psychosis, or anxiety disorders are not exclusion criteria).
  • Current use of tricyclic antidepressants or any antipsychotic medications, given the risk of seizure incidence independent of TMS use in tricyclics is up to 0.4% or second-generation antipsychotics up to 1.2%.
  • Significant other medical disease such as unstable diabetes mellitus, congestive heart failure, coronary or peripheral vascular disease, chronic obstructive lung disease, sleep apnea, or . Stable diabetes mellitus, stable hypertension (meaning that these conditions are followed up on by a physician and they are getting treatment for it with clinical stability), or hyperlipidemia are not exclusion criteria.
  • History of traumatic brain injury
  • History of epileptic disorders or family history of seizures in first degree relatives
  • History of syncope
  • History of tinnitus or hearing loss
  • Current or history of substance misuse/dependence including alcohol at time of entry into the study.
  • History of COVID-19 infection with persistent neurologic symptoms.
  • Intra-axial implants (e.g., spinal cord stimulators or pumps) that are MRI incompatible.
  • All exclusion criteria for MRI and TMS safety: any metallic implants, chips, or plates, cochlear implants, brain or skull abnormalities, aneurysm clips or coils, non-removable piercings, tattoos containing ferromagnetic ink, and claustrophobia.
  • Surgery within the past 3 months or history of any brain surgery
  • Pregnancy
  • Participation into another research study
  • In the judgment of the investigator, unable or unwilling to follow the protocol and instructions.
Terms in these criteria, in plain language(4)

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.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

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
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
20 participants (estimated)

Study arms

  • Active comparator
    right M1 rTMS

    Other: rTMS

  • Active comparator
    Left M1 rTMS

    Other: rTMS

Interventions

  • OtherrTMS

    Using rTMS, which is a procedure that uses magnetic fields to stimulate nerve cells in the brain, to investigate its potential analgesic effects in fibromyalgia.

06

What researchers measure

Primary outcomes

  1. Mean Change in Primary Motor Cortex (M1) Connectopy Profile

    Resting-state fMRI will be used to derive connectopy embeddings of the primary motor cortex (M1). Connectopy embeddings from the stimulated side will be extracted from significant baseline-defined clusters. A single value per participant is derived by averaging the embedding values within this cluster. Higher scores indicate increased similarity to healthy reference profiles (improved functional connectivity), while lower scores indicate deviation from healthy reference patterns (reduced functional connectivity).

    Time frame: Baseline and post-treatment (after 10 sessions of rTMS over 2 weeks).

Secondary outcomes

  1. Mean Change in Pain Intensity (Numeric Rating Scale, NRS)

    Self-reported average pain over 7 days using the Numeric Rating Scale (0 = "no pain at all" to 10 = "worst pain possible"). A single number is derived as the mean of daily ratings over 7 days. Lower scores indicate reduced pain intensity, while higher scores indicate worse pain intensity.

    Time frame: Baseline and post-treatment (following 10 rTMS sessions, within 7 days of completing rTMS sessions ).

  2. Mean Change in Pressure Pain Threshold (PPT)

    Pressure pain threshold (PPT) will be measured using a pressure algometer (Wagner Inc.). Pressure will be applied at a constant rate until participants indicate pain perception. The threshold (kg/cm²) will be recorded. A single value is derived by averaging three threshold readings from the target site. Higher thresholds indicate reduced pain sensitivity (improvement), while lower thresholds indicate increased pain sensitivity (worsening).

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions )

  3. Mean Change in Fatigue (Patient-Reported Outcomes Measurement Information System-PROMIS Fatigue 13a Subscale)

    Fatigue will be assessed using the PROMIS (Patient-Reported Outcomes Measurement Information System) Fatigue 13a subscale, which ranges from 13 to 65. Higher scores indicate greater fatigue severity (worsening), whereas lower scores indicate less fatigue (improvement).

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

  4. Mean Change in Sleep Disturbance (Patient-Reported Outcomes Measurement Information System - PROMIS Sleep Disturbance 8a Subscale)

    Sleep disturbance will be assessed using the PROMIS (Patient-Reported Outcomes Measurement Information System) Sleep Disturbance 8a subscale, which ranges from 8 to 40. Higher scores indicate greater sleep disturbance (worsening), whereas lower scores indicate improved sleep.

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

  5. Mean Change in the Short-Form McGill Pain Questionnaire

    The Short-Form McGill Pain Questionnaire-2 (SF-MPQ-2) has 22 items assessing continuous, intermittent, neuropathic, and affective pain. Items are rated 0-10, with total scores ranging 0-220, where higher scores indicate greater pain severity.

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

  6. Mean Change in Central Sensitization Index

    Central Sensitization Index (CSI) is a 25-item self-reported measure that determines whether the symptoms of patients are associated with central sensitization. Item responses are on a 4-point scale and can be answered as follows: 0 = Never, 1 = Rarely, 2 = Sometimes, 3 = Often, and 4 = Always. The total score will be used to estimate the severity of the central sensitization symptoms.

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

  7. Mean Change in Pain Catastrophizing Scale

    The Pain Catastrophizing Scale (PCS) has 13 items measuring rumination, magnification, and helplessness related to pain. Items are rated 0-4, with total scores ranging 0-52; higher scores indicate greater catastrophizing.

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

  8. Mean Change in the Pain Self-repot Survey for the Assessment of Fibromyalgia

    The Patient Self-Report Survey for the Assessment of Fibromyalgia has 9 items measuring widespread pain and symptom severity. Scores range 0-31, with higher scores indicating greater fibromyalgia symptom burden.

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

  9. Mean Change in Revised Fibromyalgia Impact Questionnaire

    The Revised Fibromyalgia Impact Questionnaire (FIQR) is a 21-item, three-domain, self-reported measure of the impact of fibromyalgia on life. All questions include a 0-10 scale, and different domains have different calculations (function domain divided by 3, overall impact domain divided by 1, symptom domain divided by 2) before summing all scores. The total score will be used to estimate the changes in quality of life with interventions.

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

  10. Mean Change in Pittsburgh Sleep Quality Index (PSQI)

    The Pittsburgh Sleep Quality Index (PSQI) measures sleep quality over the past month and consists of seven components assessing various aspects of sleep quality and sleep-related daytime functioning. The index will be used to estimate the overall sleep quality of participants, with total scores ranging from 0 to 21, where higher scores indicate worse sleep quality.

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

  11. Mean Change in Chronic Overlapping Pain Conditions Screener

    Chronic Overlapping Pain Conditions Screener (COPCS) is a self-report tool that uses a body map and trigger questions to screen for 10 chronic overlapping pain conditions and outputs the number of conditions present (0-10).

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

  12. Mean Change in Hospital Anxiety and Depression Scale

    The Hospital Anxiety and Depression Scale (HADS) has 14 items, 7 each for anxiety and depression. Each item is rated 0-3, with subscale scores ranging 0-21; higher scores indicate greater symptom severity.

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

  13. Mean Change in Beck Depression Inventory

    The Beck Depression Inventory (BDI) has 21 items assessing depressive symptoms. Each item is rated 0-3, with total scores ranging 0-63; higher scores indicate greater depression severity.

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

  14. Mean Change in Beck Anxiety Inventory

    The Beck Anxiety Inventory (BAI) has 21 items assessing anxiety symptoms. Each item is rated 0-3, with total scores ranging 0-63; higher scores indicate greater anxiety severity.

    Time frame: Baseline and post-treatment (within 7 days of completing rTMS sessions).

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 Dec 2025 (actual). Primary completion is estimated for Jan 2027, 13 months after the start.

Of 436 non-industry interventional studies with no phase under Fibromyalgia, half reached primary completion within 16 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 31. This study's planned 13 months is below that.

Counting every sponsor, half of 449 studies reached it within 15 months; a quarter within 6 and three quarters within 31.

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

Registered
Aug 11, 2025
First posted
Dec 3, 2025
StartActual
Dec 5, 2025
Primary completionEst.
Jan 2027
CompletionEst.
Jan 2027
Last update
Aug 20, 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 Aug 20, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07260864
Responsible party
Paul Geha (Associate Professor of psychiatry, University of Rochester) — Principal investigator
First posted
Dec 3, 2025
Start date
Dec 5, 2025
Primary completion
Jan 2027 (estimated)
Completion
Jan 2027 (estimated)
Last update
Aug 20, 2026

Study contacts

Olivia Caraccio, BS/BA
Contact
Olivia_Caraccio@URMC.Rochester.edu
5853136322

Oversight

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

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