ApathyPhase 1NCT05878457
Accelerated rTMS for Post-Stroke Apathy
A Phase 1 study testing MagVenture MagPro Transcranial Magnetic Stimulation (TMS) System in people with Apathy and Stroke Sequelae, run by Medical University of South Carolina at 1 site in United States.
Trial summary
This pilot study will investigate the safety, feasibility, tolerability, and preliminary efficacy of accelerated high-dose repetitive transcranial magnetic stimulation (rTMS) targeting the medial prefrontal cortex (mPFC) to address apathy symptoms in individuals with chronic stroke. Read more about this study
- Who is it for?
- Ages 40 years and older
- Conditions the study is for
- Apathy, Stroke Sequelae, Stroke (CVA) or TIA
- What is being tested?
- MagVenture MagPro Transcranial Magnetic Stimulation (TMS) System
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 21 participants
- Where
- 1 siteUnited States
- Study dates
- 1 Dec 2023to 30 Apr 2025
- Phase
- Phase 1
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 40 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 40 years old or greater
- Right- or left-hemisphere ischemic or hemorrhagic stroke with at least 6 months chronicity
- Symptomatic apathy as confirmed by (A) total score on the Apathy Evaluation Scale (AES) of ≥39 as rated by the participant or caregiver informant
- Intact cortex under the coil at the stimulation target site confirmed by neuroimaging
- Ability to participate in psychometric testing and cognitive tasks
Who cannot join
- Primary extra-axial hemorrhage (subdural or subarachnoid) without ischemic stroke or intraparenchymal hemorrhage
- Concomitant neurological disorders affecting motor or cognitive function (e.g. dementia)
- Moderate or severe global aphasia
- Visual impairment precluding completion of cognitive tasks
- Presence of contraindications to MRI or TMS including electrically, magnetically or mechanically activated metal or nonmetal implants such as cardiac pacemakers, intracerebral vascular clips, or any other electrically sensitive support system;
- Pregnancy (to be later confirmed by UPT in any premenopausal female participants)
Show all 13Show fewer
- History of a seizure disorder
- Preexisting scalp lesion, wound, bone defect, or hemicraniectomy
- Claustrophobia precluding the ability to undergo an MRI
- Active substance use disorder
- Psychotic disorders
- Bipolar 1 Disorder
- Acute suicidality as assessed by the Columbia Suicide Severity Rating Scale (C-SSRS) or suicide attempt in the previous year
Trial locations and contacts
1 site in 1 country.
United States1 site
Medical University of South Carolina Brain Stimulation Lab
Charleston, South Carolina, 29403
About this study
Official title: Accelerated rTMS for Post-Stroke Apathy: Targeting Amotivation Toward Improving Whole Health and Rehabilitation Engagement
This pilot study will investigate the safety, feasibility, tolerability, and preliminary efficacy of accelerated high-dose repetitive transcranial magnetic stimulation (rTMS) targeting the medial prefrontal cortex (mPFC) to address apathy symptoms in individuals with chronic stroke.
Read the detailed description
Repetitive transcranial magnetic stimulation (rTMS) is a well-established FDA-approved treatment for several psychiatric indications including treatment-resistant depression, obsessive-compulsive disorder, and smoking cessation. Traditional rTMS targets the dorsolateral prefrontal cortex (dlPFC) with repetitive treatments delivered for six weeks. Recent innovations have led to the development of accelerated, high-dose rTMS protocols, with recent FDA-approval, that are capable of delivering a full treatment course within a single week.
Accumulating evidence suggests that similar neuromodulation protocols may be helpful in targeting neuropsychiatric symptoms across a range of neurologic and neurodegenerative conditions including dementia, movement disorders, and stroke. Apathy is a distinct neuropsychiatric symptom characterized by loss of motivation, withdrawal, and decreased goal-directed activity seen across a wide range of neuropsychiatric conditions. Apathy contributes significantly to lower quality of life, caregiver burnout, and poorer rehabilitation outcomes. Meanwhile, there are currently no FDA-approved treatments targeting apathy specifically. The mPFC has been well-established as a safe and feasible target for traditional rTMS, and may be a desirable stimulation site in targeting apathy due to its superficial location and integral association with other brain structures implicated in apathy pathophysiology such as the anterior cingulate cortex (ACC) and ventral striatum (VL).
This phase I open-label pilot study will investigate high-dose, accelerated rTMS at the medial prefrontal cortex (mPFC) to target apathy in individuals with chronic stroke. The primary aims of the study will be to: (1) establish the safety, feasibility, tolerability, and acceptability of an accelerated repetitive transcranial magnetic stimulation (rTMS) protocol for apathy in chronic stroke; (2) establish the feasibility of individualized resting-state functional magnetic resonance imaging (fMRI) connectivity for targeting rTMS in post-stroke apathy; (3) establish preliminary efficacy of an accelerated rTMS protocol for post-stroke apathy. Given the limited power of this small pilot study, this aim will be considered exploratory with the intention to guide future research.
Sixteen chronic stroke patients with symptomatic apathy will complete (1) structural as well as resting state functional MRI at baseline for targeting parcellations. (2) A battery of validated clinical assessments of apathy-related symptoms (3) a battery of neuropsychological, cognitive, and symptom measures to assess safety, tolerability, and feasibility. Treatment will consist of open-label, high-dose rTMS to left mPFC delivered following a standard protocol consisting of 600 pulses, twelve times per day, for three treatment days (contiguous or non-contiguous) within a seven-day period. Safety assessments will be monitored throughout treatment. A battery of clinical assessments will be repeated at the end of treatment and weekly for one month post-treatment.
- Conditions
- Apathy, Stroke Sequelae, Stroke (CVA) or TIA, Stroke/Brain Attack, Motivation, Abulia
- Being tested
- MagVenture MagPro Transcranial Magnetic Stimulation (TMS) System
- Medical subject headings
- Lethargy, Stroke
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
MagVenture MagPro Transcranial Magnetic Stimulation (TMS) SystemDevice
Also called Brainsight Neuronavigation System
Treatment will consist 12 approximately-three-minute sessions on each of three treatment days within a seven-day period. To promote participant adherence and retention, treatment days will not need to be contiguous. A single session consists of 600 pulses delivered to the dmPFC at an intensity of 120% resting motor threshold (rMT). 50 hz triphasic bursts will be delivered for two seconds, followed by an 8 second inter-train interval. Trains will be repeated every 10 seconds, 10 times total, for a total of 190 seconds per session. An intersession interval of at least 15 minutes will be employed between each of the 12 sessions. Each treatment day will thus last approximately 3-4 hours in duration.
| Study group | Role | What they receive |
|---|---|---|
| Repetitive transcranial magnetic stimulation | Experimental | All participants will receive accelerated, high-dose repetitive transcranial magnetic stimulation (rTMS) at the medial prefrontal cortex (mPFC) delivered in runs of 600 pulses, twelve times per day, for three treatment days (contiguous or non-contiguous) within a seven-day period. Receives: Device: MagVenture MagPro Transcranial Magnetic Stimulation (TMS) System |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in Apathy Symptoms, as Measured by the Lille Apathy Rating Scale (LARS) Compared to Baseline
The Lille Apathy Rating Scale (LARS) is a validated 33-item structured interview assessing apathy across 9 domains, including intellectual curiosity, emotion, action initiation, self-awareness, productivity, interests, novelty seeking, motivation, and social engagement.
Total scores range from -36 to +36, with higher scores indicating greater severity of apathy (worse outcome) and lower (more negative) scores indicating less apathy (better outcome).
The total score is calculated by summing responses across all items and domains to generate a composite score.
Measured: Pre-treatment, immediately post-treatment, and at one-month follow-up
Treatment-Emergent Adverse Events and Side Effects as Assessed by Intermittent Theta Burst Stimulation Review of Systems (iTBS ROS)
A review of systems questionnaire (Intermittent Theta Burst Stimulation Review of Systems; iTBS ROS) was administered repeatedly during each treatment day to assess treatment-emergent symptoms.
Symptoms were rated on a scale from 0 to 5 (0 = none, 1 = minimal, 2 = mild, 3 = moderate, 4 = marked, 5 = severe), with higher scores indicating greater symptom severity (worse outcome).
Values reported represent the average symptom severity across all assessments collected during the 3 treatment days for each participant, and then averaged across participants.
Measured: Across the 3 rTMS treatment days
Change in Global Cognition, as Measured by the Montreal Cognitive Assessment (MoCA) Compared to Baseline
The Montreal Cognitive Assessment (MoCA) is a clinical assessment of cognitive function. The MoCA assesses multiple cognitive domains including memory, visuospatial skills, executive function, attention, concentration, calculation, language, abstraction, and orientation. The MoCA can be administered in approximately 10 minutes and total scores range from 0 to 30 with lower scores correlating with greater degree of cognitive impairment.
Measured: Pre-treatment, immediately post-treatment, and at one-month follow-up
Change From Baseline Cognition, as Measured by the Fluid Cognition Composite Score From the NIH Toolbox Cognition Battery Compared to Baseline
Fluid cognition was measured using the iPad-administered NIH Toolbox Cognition Battery (NIHTB-CB). Fluid Cognition Composite scores were calculated by averaging the demographically adjusted (age, education, sex, race/ethnicity; Casaletto et al., 2015) T-scores for 5 NIHTB-CB tests: the flanker inhibitory control, list sorting working memory, pattern comparison processing speed, dimensional change card sort tests, and picture sequence memory. T-Scores have a mean of 50 and a standard deviation of 10. Lower scores indicate worse performance. There are no established thresholds or cutoffs for clinically distinct or diagnostic categories.
Measured: Pre-treatment, immediately post-treatment
Participant Retention Rate
Percentage of participants who completed the study relative to all participants who initiated treatment
Measured: calculated at the end of the study follow-up assessment period (one month post-treatment)
Secondary outcomes (2)
Change in Apathy Symptoms, as Measured by the Apathy Evaluation Scale (AES) Compared to Baseline
The Apathy Evaluation Scale (AES) clinically validated rating scale assessing symptoms of apathy. The AES is comprised of 18 items rated on a four-point Likert-Scale assessing and quantifying emotional, behavioral and cognitive aspects of apathy. Total scores on the AES range from 18 to 72 with high scores correlating with greater severity of apathy.
Measured: Pre-treatment, immediately post-treatment, and at one-month follow-up
Patient-Reported Outcomes Measurement Information System (PROMIS) Depression Short Form
The Patient-Reported Outcomes Measurement Information System (PROMIS) Depression Short Form is a validated patient-reported outcome measure assessing depressive symptoms, including negative mood, cognitive symptoms, and decreased positive affect.
Scores are reported as T-scores standardized to the U.S. general population, where a T-score of 50 represents the population mean and 10 represents the standard deviation.
Higher T-scores indicate greater depressive symptom severity (worse outcome), while lower T-scores indicate fewer depressive symptoms (better outcome).
T-scores of approximately 60 or greater are generally considered indicative of at least mild clinically elevated depressive symptoms, with higher thresholds reflecting increasing severity.
Measured: Pre-treatment, immediately post-treatment, and at one-month follow-up
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 May 2023
- Study start1 Dec 2023
- Primary completion30 Apr 2025
- Study completion30 Apr 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (12)Papers the sponsor has linked to this study.
- Other trials for ApathyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Device feasibility
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- single group, open-label pilot investigation
- Masking
- None (open label)
- Enrolment
- 21 participants (actual)
Sponsor and investigators
- Lead sponsor
- Medical University of South Carolina
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Parneet Grewal, MD, Principal investigator, Medical University of South Carolina
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05878457
- Sponsor's protocol ID
- Pro00126436
- Status last verified
- Jun 2026
- First submitted
- 20 Apr 2023
- Last updated
- 10 Jul 2026
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
- Individual data sharing
- No
Publications
Le Heron C, Apps MAJ, Husain M. The anatomy of apathy: A neurocognitive framework for amotivated behaviour. Neuropsychologia. 2018 Sep;118(Pt B):54-67. doi: 10.1016/j.neuropsychologia.2017.07.003. Epub 2017 Jul 8.
PubMed 28689673Levy R, Dubois B. Apathy and the functional anatomy of the prefrontal cortex-basal ganglia circuits. Cereb Cortex. 2006 Jul;16(7):916-28. doi: 10.1093/cercor/bhj043. Epub 2005 Oct 5.
PubMed 16207933Holtzheimer PE 3rd, McDonald WM, Mufti M, Kelley ME, Quinn S, Corso G, Epstein CM. Accelerated repetitive transcranial magnetic stimulation for treatment-resistant depression. Depress Anxiety. 2010 Oct;27(10):960-3. doi: 10.1002/da.20731.
PubMed 20734360Sasaki N, Hara T, Yamada N, Niimi M, Kakuda W, Abo M. The Efficacy of High-Frequency Repetitive Transcranial Magnetic Stimulation for Improving Apathy in Chronic Stroke Patients. Eur Neurol. 2017;78(1-2):28-32. doi: 10.1159/000477440. Epub 2017 Jun 3.
PubMed 28578330Santa N, Sugimori H, Kusuda K, Yamashita Y, Ibayashi S, Iida M. Apathy and functional recovery following first-ever stroke. Int J Rehabil Res. 2008 Dec;31(4):321-6. doi: 10.1097/MRR.0b013e3282fc0f0e.
PubMed 19008681Jorge RE, Starkstein SE, Robinson RG. Apathy following stroke. Can J Psychiatry. 2010 Jun;55(6):350-4. doi: 10.1177/070674371005500603.
PubMed 20540829Nasreddine ZS, Phillips NA, Bedirian V, Charbonneau S, Whitehead V, Collin I, Cummings JL, Chertkow H. The Montreal Cognitive Assessment, MoCA: a brief screening tool for mild cognitive impairment. J Am Geriatr Soc. 2005 Apr;53(4):695-9. doi: 10.1111/j.1532-5415.2005.53221.x.
PubMed 15817019Sockeel P, Dujardin K, Devos D, Deneve C, Destee A, Defebvre L. The Lille apathy rating scale (LARS), a new instrument for detecting and quantifying apathy: validation in Parkinson's disease. J Neurol Neurosurg Psychiatry. 2006 May;77(5):579-84. doi: 10.1136/jnnp.2005.075929.
PubMed 16614016Casaletto KB, Umlauf A, Beaumont J, Gershon R, Slotkin J, Akshoomoff N, Heaton RK. Demographically Corrected Normative Standards for the English Version of the NIH Toolbox Cognition Battery. J Int Neuropsychol Soc. 2015 May;21(5):378-91. doi: 10.1017/S1355617715000351. Epub 2015 Jun 1.
PubMed 26030001Schalet BD, Pilkonis PA, Yu L, Dodds N, Johnston KL, Yount S, Riley W, Cella D. Clinical validity of PROMIS Depression, Anxiety, and Anger across diverse clinical samples. J Clin Epidemiol. 2016 May;73:119-27. doi: 10.1016/j.jclinepi.2015.08.036. Epub 2016 Feb 27.
PubMed 26931289Marin RS, Biedrzycki RC, Firinciogullari S. Reliability and validity of the Apathy Evaluation Scale. Psychiatry Res. 1991 Aug;38(2):143-62. doi: 10.1016/0165-1781(91)90040-v.
PubMed 1754629Seidman MB, Grewal P, Bowyer C, Dickens I, Eade J, Collins E, Patel C, Arias Velasquez DE, George MS, Antonucci M, Caulfield KA, McTeague LM. Improving Motivation in Post-stroke Apathy with Repetitive Transcranial Magnetic Stimulation (IMPART): A Phase-I Pilot Trial. medRxiv [Preprint]. 2026 Jun 5:2026.06.01.26354398. doi: 10.64898/2026.06.01.26354398.
PubMed 42282206
Study at a glance
From the registry record, last updated by the sponsor on 10 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Accelerated rTMS for Post-Stroke Apathy: Targeting Amotivation Toward Improving Whole Health and Rehabilitation Engagement
- ClinicalTrials.gov ID
- NCT05878457
- Acronym / sponsor ID
- Pro00126436
- Conditions
- Apathy, Stroke Sequelae, Stroke (CVA) or TIA, Stroke/Brain Attack, Motivation, Abulia
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 21 participants (actual)
- Lead sponsor
- Medical University of South CarolinaUniversity, hospital or other
- Study start
- 1 Dec 2023 (actual)
- Primary completion
- 30 Apr 2025 (actual)
- Study completion
- 30 Apr 2025 (actual)
- First posted
- 26 May 2023 (actual)
- Results
- Posted 10 Jul 2026
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This pilot study will investigate the safety, feasibility, tolerability, and preliminary efficacy of accelerated high-dose repetitive transcranial magnetic stimulation (rTMS) targeting the medial prefrontal cortex (mPFC) to address apathy symptoms in individuals with chronic stroke.
Detailed description
Repetitive transcranial magnetic stimulation (rTMS) is a well-established FDA-approved treatment for several psychiatric indications including treatment-resistant depression, obsessive-compulsive disorder, and smoking cessation. Traditional rTMS targets the dorsolateral prefrontal cortex (dlPFC) with repetitive treatments delivered for six weeks. Recent innovations have led to the development of accelerated, high-dose rTMS protocols, with recent FDA-approval, that are capable of delivering a full treatment course within a single week.
Accumulating evidence suggests that similar neuromodulation protocols may be helpful in targeting neuropsychiatric symptoms across a range of neurologic and neurodegenerative conditions including dementia, movement disorders, and stroke. Apathy is a distinct neuropsychiatric symptom characterized by loss of motivation, withdrawal, and decreased goal-directed activity seen across a wide range of neuropsychiatric conditions. Apathy contributes significantly to lower quality of life, caregiver burnout, and poorer rehabilitation outcomes. Meanwhile, there are currently no FDA-approved treatments targeting apathy specifically. The mPFC has been well-established as a safe and feasible target for traditional rTMS, and may be a desirable stimulation site in targeting apathy due to its superficial location and integral association with other brain structures implicated in apathy pathophysiology such as the anterior cingulate cortex (ACC) and ventral striatum (VL).
This phase I open-label pilot study will investigate high-dose, accelerated rTMS at the medial prefrontal cortex (mPFC) to target apathy in individuals with chronic stroke. The primary aims of the study will be to: (1) establish the safety, feasibility, tolerability, and acceptability of an accelerated repetitive transcranial magnetic stimulation (rTMS) protocol for apathy in chronic stroke; (2) establish the feasibility of individualized resting-state functional magnetic resonance imaging (fMRI) connectivity for targeting rTMS in post-stroke apathy; (3) establish preliminary efficacy of an accelerated rTMS protocol for post-stroke apathy. Given the limited power of this small pilot study, this aim will be considered exploratory with the intention to guide future research.
Sixteen chronic stroke patients with symptomatic apathy will complete (1) structural as well as resting state functional MRI at baseline for targeting parcellations. (2) A battery of validated clinical assessments of apathy-related symptoms (3) a battery of neuropsychological, cognitive, and symptom measures to assess safety, tolerability, and feasibility. Treatment will consist of open-label, high-dose rTMS to left mPFC delivered following a standard protocol consisting of 600 pulses, twelve times per day, for three treatment days (contiguous or non-contiguous) within a seven-day period. Safety assessments will be monitored throughout treatment. A battery of clinical assessments will be repeated at the end of treatment and weekly for one month post-treatment.
Study design
- Primary purpose
- Device feasibility
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- single group, open-label pilot investigation
| Arm | Type | Receives |
|---|---|---|
| Repetitive transcranial magnetic stimulation | Experimental | Device: MagVenture MagPro Transcranial Magnetic Stimulation (TMS) SystemAll participants will receive accelerated, high-dose repetitive transcranial magnetic stimulation (rTMS) at the medial prefrontal cortex (mPFC) delivered in runs of 600 pulses, twelve times per day, for three treatment days (contiguous or non-contiguous) within a seven-day period. |
Who may qualify
- Ages
- 40 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- 40 years old or greater
- Right- or left-hemisphere ischemic or hemorrhagic stroke with at least 6 months chronicity
- Symptomatic apathy as confirmed by (A) total score on the Apathy Evaluation Scale (AES) of ≥39 as rated by the participant or caregiver informant
- Intact cortex under the coil at the stimulation target site confirmed by neuroimaging
- Ability to participate in psychometric testing and cognitive tasks
Key exclusion criteria (13 listed)
- Primary extra-axial hemorrhage (subdural or subarachnoid) without ischemic stroke or intraparenchymal hemorrhage
- Concomitant neurological disorders affecting motor or cognitive function (e.g. dementia)
- Moderate or severe global aphasia
- Visual impairment precluding completion of cognitive tasks
- Presence of contraindications to MRI or TMS including electrically, magnetically or mechanically activated metal or nonmetal implants such as cardiac pacemakers, intracerebral vascular clips, or any other electrically sensitive support system;
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| MagVenture MagPro Transcranial Magnetic Stimulation (TMS) SystemAlso: Brainsight Neuronavigation SystemTreatment will consist 12 approximately-three-minute sessions on each of three treatment days within a seven-day period. To promote participant adherence and retention, treatment days will not need to be contiguous. A single session consists of 600 pulses delivered to the dmPFC at an intensity of 120% resting motor threshold (rMT). 50 hz triphasic bursts will be delivered for two seconds, followed by an 8 second inter-train interval. Trains will be repeated every 10 seconds, 10 times total, for a total of 190 seconds per session. An intersession interval of at least 15 minutes will be employed between each of the 12 sessions. Each treatment day will thus last approximately 3-4 hours in duration. | Device | Repetitive transcranial magnetic stimulation |
Primary outcome
Change in Apathy Symptoms, as Measured by the Lille Apathy Rating Scale (LARS) Compared to Baseline
Time frame: Pre-treatment, immediately post-treatment, and at one-month follow-up
The Lille Apathy Rating Scale (LARS) is a validated 33-item structured interview assessing apathy across 9 domains, including intellectual curiosity, emotion, action initiation, self-awareness, productivity, interests, novelty seeking, motivation, and social engagement. Total scores range from -36 to +36, with higher scores indicating greater severity of apathy (worse outcome) and lower (more negative) scores indicating less apathy (better outcome). The total score is calculated by summing responses across all items and domains to generate a composite score.
Treatment-Emergent Adverse Events and Side Effects as Assessed by Intermittent Theta Burst Stimulation Review of Systems (iTBS ROS)
Time frame: Across the 3 rTMS treatment days
A review of systems questionnaire (Intermittent Theta Burst Stimulation Review of Systems; iTBS ROS) was administered repeatedly during each treatment day to assess treatment-emergent symptoms. Symptoms were rated on a scale from 0 to 5 (0 = none, 1 = minimal, 2 = mild, 3 = moderate, 4 = marked, 5 = severe), with higher scores indicating greater symptom severity (worse outcome). Values reported represent the average symptom severity across all assessments collected during the 3 treatment days for each participant, and then averaged across participants.
Change in Global Cognition, as Measured by the Montreal Cognitive Assessment (MoCA) Compared to Baseline
Time frame: Pre-treatment, immediately post-treatment, and at one-month follow-up
The Montreal Cognitive Assessment (MoCA) is a clinical assessment of cognitive function. The MoCA assesses multiple cognitive domains including memory, visuospatial skills, executive function, attention, concentration, calculation, language, abstraction, and orientation. The MoCA can be administered in approximately 10 minutes and total scores range from 0 to 30 with lower scores correlating with greater degree of cognitive impairment.
Change From Baseline Cognition, as Measured by the Fluid Cognition Composite Score From the NIH Toolbox Cognition Battery Compared to Baseline
Time frame: Pre-treatment, immediately post-treatment
Fluid cognition was measured using the iPad-administered NIH Toolbox Cognition Battery (NIHTB-CB). Fluid Cognition Composite scores were calculated by averaging the demographically adjusted (age, education, sex, race/ethnicity; Casaletto et al., 2015) T-scores for 5 NIHTB-CB tests: the flanker inhibitory control, list sorting working memory, pattern comparison processing speed, dimensional change card sort tests, and picture sequence memory. T-Scores have a mean of 50 and a standard deviation of 10. Lower scores indicate worse performance. There are no established thresholds or cutoffs for clinically distinct or diagnostic categories.
Participant Retention Rate
Time frame: calculated at the end of the study follow-up assessment period (one month post-treatment)
Percentage of participants who completed the study relative to all participants who initiated treatment
2 secondary outcomes
Change in Apathy Symptoms, as Measured by the Apathy Evaluation Scale (AES) Compared to Baseline
Time frame: Pre-treatment, immediately post-treatment, and at one-month follow-up
Patient-Reported Outcomes Measurement Information System (PROMIS) Depression Short Form
Time frame: Pre-treatment, immediately post-treatment, and at one-month follow-up
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Jul 2026.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 28689673Le Heron C, Apps MAJ, Husain M. The anatomy of apathy: A neurocognitive framework for amotivated behaviour. Neuropsychologia. 2018 Sep;118(Pt B):54-67. doi: 10.1016/j.neuropsychologia.2017.07.003. Epub 2017 Jul 8.
- Background: PubMed 16207933Levy R, Dubois B. Apathy and the functional anatomy of the prefrontal cortex-basal ganglia circuits. Cereb Cortex. 2006 Jul;16(7):916-28. doi: 10.1093/cercor/bhj043. Epub 2005 Oct 5.
- Results publication: PubMed 20734360Holtzheimer PE 3rd, McDonald WM, Mufti M, Kelley ME, Quinn S, Corso G, Epstein CM. Accelerated repetitive transcranial magnetic stimulation for treatment-resistant depression. Depress Anxiety. 2010 Oct;27(10):960-3. doi: 10.1002/da.20731.
- Results publication: PubMed 28578330Sasaki N, Hara T, Yamada N, Niimi M, Kakuda W, Abo M. The Efficacy of High-Frequency Repetitive Transcranial Magnetic Stimulation for Improving Apathy in Chronic Stroke Patients. Eur Neurol. 2017;78(1-2):28-32. doi: 10.1159/000477440. Epub 2017 Jun 3.
- Results publication: PubMed 19008681Santa N, Sugimori H, Kusuda K, Yamashita Y, Ibayashi S, Iida M. Apathy and functional recovery following first-ever stroke. Int J Rehabil Res. 2008 Dec;31(4):321-6. doi: 10.1097/MRR.0b013e3282fc0f0e.
- Results publication: PubMed 20540829Jorge RE, Starkstein SE, Robinson RG. Apathy following stroke. Can J Psychiatry. 2010 Jun;55(6):350-4. doi: 10.1177/070674371005500603.
- Results publication: PubMed 15817019Nasreddine ZS, Phillips NA, Bedirian V, Charbonneau S, Whitehead V, Collin I, Cummings JL, Chertkow H. The Montreal Cognitive Assessment, MoCA: a brief screening tool for mild cognitive impairment. J Am Geriatr Soc. 2005 Apr;53(4):695-9. doi: 10.1111/j.1532-5415.2005.53221.x.
- Results publication: PubMed 16614016Sockeel P, Dujardin K, Devos D, Deneve C, Destee A, Defebvre L. The Lille apathy rating scale (LARS), a new instrument for detecting and quantifying apathy: validation in Parkinson's disease. J Neurol Neurosurg Psychiatry. 2006 May;77(5):579-84. doi: 10.1136/jnnp.2005.075929.
- Results publication: PubMed 26030001Casaletto KB, Umlauf A, Beaumont J, Gershon R, Slotkin J, Akshoomoff N, Heaton RK. Demographically Corrected Normative Standards for the English Version of the NIH Toolbox Cognition Battery. J Int Neuropsychol Soc. 2015 May;21(5):378-91. doi: 10.1017/S1355617715000351. Epub 2015 Jun 1.
- Results publication: PubMed 26931289Schalet BD, Pilkonis PA, Yu L, Dodds N, Johnston KL, Yount S, Riley W, Cella D. Clinical validity of PROMIS Depression, Anxiety, and Anger across diverse clinical samples. J Clin Epidemiol. 2016 May;73:119-27. doi: 10.1016/j.jclinepi.2015.08.036. Epub 2016 Feb 27.
- Results publication: PubMed 1754629Marin RS, Biedrzycki RC, Firinciogullari S. Reliability and validity of the Apathy Evaluation Scale. Psychiatry Res. 1991 Aug;38(2):143-62. doi: 10.1016/0165-1781(91)90040-v.
- Derived from this study: PubMed 42282206Seidman MB, Grewal P, Bowyer C, Dickens I, Eade J, Collins E, Patel C, Arias Velasquez DE, George MS, Antonucci M, Caulfield KA, McTeague LM. Improving Motivation in Post-stroke Apathy with Repetitive Transcranial Magnetic Stimulation (IMPART): A Phase-I Pilot Trial. medRxiv [Preprint]. 2026 Jun 5:2026.06.01.26354398. doi: 10.64898/2026.06.01.26354398.
- Individual participant dataSharing planned: No
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Apathy, Loneliness
RecruitingPhase 1/2
Safety and Tolerability of IRL757 in Participants With Parkinson's Disease and Apathy
PARKINSON DISEASE (Disorder), Apathy
Recruiting
Accelerated rTMS for Apathy in Parkinson's Disease
Parkinson Disease
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Parneet Grewal, MD principal investigator
Medical University of South Carolina
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing MagVenture MagPro Transcranial Magnetic Stimulation (TMS) System in people with Apathy and Stroke Sequelae, run by Medical University of South Carolina at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 10 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 10 Jul 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in Apathy Symptoms, as Measured by the Lille Apathy Rating Scale (LARS) Compared to Baseline (time frame: Pre-treatment, immediately post-treatment, and at one-month follow-up). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05878457, which also lists 12 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Jul 2026.