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StrokeEarly Phase 1NCT07588932

Relying on Pharmacotherapy to Improve Motor Gains in Chronic Stroke Survivors

A Early Phase 1 study testing Telmisartan, Metformin, Cilostazol in people with Stroke, run by Spaulding Rehabilitation Hospital at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The goal of this trial is to study if the concomitant administration of Telmisartan, Cilostazol IR (immediate release), and Metformin ER (extended release) can help stroke survivors make greater gains in movement and recovery during robot-assisted arm and hand rehabilitation. Read more about this study

Who is it for?
Ages 21 to 80 years
Conditions the study is for
Stroke
What is being tested?
Telmisartan, Metformin, Cilostazol
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
1 siteUnited States
Study dates
18 May 2026to 31 Dec 2028
Phase
Early Phase 1
Are there results?
Not yet: the study is under way

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 21 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults between 21 and 80 years of age.
  • History of ischemic stroke.
  • Stroke occurred at least six months prior to recruitment.
  • Moderate to severe UE impairment (FMA-UE score between 15 and 40)
  • MMSE score >=20 and being able to safely follow three-step commands.

Who cannot join

  • Contraindications to the pharmacotherapy (e.g., heart failure, known medication reaction or interactions with ongoing medication regimen).
  • Taking dual antiplatelet therapy (e.g., Aspirin+Plavix) and/or other anticoagulation medications (e.g., Eliquis, coumadin) that cannot safely be modified or discontinued (as determined by the participant's primary care physician or by the medical monitor).
  • Clinically significant somnolence and/or depression that would hinder active participation in motor training sessions.
  • Taking any medication that the study physician determines to have a significant drug-drug interaction with Telmisartan, Cilostazol, and/or Metformin.
  • Taking Telmisartan, Cilostazol, and/or Metformin in a dose that is different from the one used in the study and that cannot be adjusted to match the study dose (as determined by the participant's primary care physician or by the medical monitor).
  • Taking medications with equivalent clinical effect (e.g., BP control) to Telmisartan, Cilostazol, and/or Metformin and that cannot be replaced by Telmisartan, Cilostazol, and/or Metformin (as determined by the participant's primary care physician or by the medical monitor).
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  • A body mass index (BMI) below 25 (as the proposed pharmacotherapy could cause hypoglycemia in participants with normal-low BMI).
  • Severe musculoskeletal pathology or recent fractures affecting the impaired UE that would prevent safe use of the rehabilitation robotic system.
  • Previous diagnosis of neurological diseases other than stroke that would have a negative impact on the response to the rehabilitation intervention (e.g., severe dystonia affecting the UE) or would prevent safe participation in RA UE training (e.g., uncontrolled seizures).
  • Moderate to severe disability due to migraines as determined using the Migraine Disability Assessment test (score > 10).
  • Severe spasticity (Modified Ashworth Scale for spasticity ≥ 3 for UE muscles) that would prevent safe use of the robotic system utilized during training.
  • Undergoing Botox treatment for pain/spasticity related to the affected upper extremity, in the 4 months prior to enrollment or during the study period.
  • Cerebellar and/or hemorrhagic stroke.
  • Severe aphasia limiting the ability to express needs or discomfort verbally or non-verbally.
  • Visual impairments that would prevent proper use of interactive on-screen games during RA UE training.
  • Severe hemispatial neglect as assessed using the Line Bisection Test (missed lines >2).
  • Severely impaired trunk control that would prevent sitting safely on a chair without arms.
  • Individuals who present with the following on the impaired UE: open wounds, fragile skin, and under contact precautions due to an active infection.
  • Participation in another therapy focused on the recovery of the impaired UE.
  • Subjects with cardiac pacemakers, electronic pumps, or any other implanted medical devices that are not US-certified (and hence might be affected by the electromagnetic interference generated by the robot).
  • Any condition that would prevent proper/safe use of the robotic system, such as proprioceptive deficits that impair the ability to process haptic or visual feedback, or unstable shoulder joint as assessed by physical examination.
  • Current pregnancy.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Madison Costa, OT contact

617-952-6388

mcosta11@mgb.org

Erin Foley, OT contact

617-952-6388

efoley14@mgb.org

United States1 site, 1 recruiting
  • Spaulding Rehabilitation Hospital

    Charlestown, Massachusetts, 02129

    Paolo Bonato, PhD, 617-952-6388, pbonato@mgh.harvard.edu

    Federico De Carlo, MS, 617-952-6388, fdecarlo@mgb.org

    Recruiting

Other trials in United States

About this study

Official title: Relying on Pharmacotherapy to Improve Motor Gains of Robot-Assisted Upper-Extremity Rehabilitation in Chronic Stroke Survivors

The goal of this trial is to study if the concomitant administration of Telmisartan, Cilostazol IR (immediate release), and Metformin ER (extended release) can help stroke survivors make greater gains in movement and recovery during robot-assisted arm and hand rehabilitation.

Read the detailed description

The overall objective of the proposed study is to assess the viability of a pharmacotherapy combining Telmisartan, Cilostazol IR, and Metformin ER to affect the motor gains achieved via robot-assisted (RA) upper-extremity (UE) rehabilitation in stroke survivors. The hypothesis underlying the study design is that concomitant administration of Telmisartan, Cilostazol IR, and Metformin ER (herein referred to as "the proposed pharmacotherapy") leads to enhancing motor and non-motor gains observed in stroke survivors in response to RA UE rehabilitation. Participants will take these medications either once a day (QD) or twice a day (BID) as described in the protocol.

To test this hypothesis, we plan to accomplish the following primary and secondary aims.

Primary Aims:

  • 1 To determine if administration of the proposed pharmacotherapy in combination with RA UE rehabilitation leads to greater improvements in UE motor impairment than previously observed in clinical trials relying on RA UE rehabilitation alone.
  • 2 To evaluate potential adverse events when using the proposed pharmacotherapy in combination with RA UE rehabilitation.

Secondary Aim:

#1 To determine if the proposed pharmacotherapy in combination with RA UE rehabilitation improves UE functional ability, health related quality of life, and cognition.

Exploratory Aims:

  • 1 To determine the association between response to the proposed pharmacotherapy and serum-based biomarkers collected at baseline (i.e., evaluation session prior to training), during the first training session (beginning and end of the session), during the last training session (beginning and end of the session), and during the 3-month follow-up evaluation session.
  • 2 To evaluate the retention of motor and cognitive gains at 1-month post-intervention.
Conditions
Stroke
Being tested
Telmisartan, Metformin, Cilostazol
Keywords
Stroke, Rehabilitation, Pharmacotherapy, Robotic therapy
Medical subject headings
Stroke

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Telmisartan, Metformin, CilostazolDrug

    Also called Proposed pharmacotherapy

    Participants will be instructed to take the low dose of the proposed pharmacotherapy (i.e., Telmisartan 20mg QD, Metformin ER 500mg QD, Cilostazol IR 50mg QD) during week 1 and the full dose (i.e., Telmisartan 40mg QD, Metformin ER 500mg BID, Cilostazol IR 50mg BID) starting on week 2. They will continue to take the full dose until completion of the six-week robot assessed upper extremity training period (week 3-8). At the end of this period, they will be instructed to take the low dose of the proposed pharmacotherapy for two more weeks. During the entire study, participants will be monitored for potential side-effects.

Study groups in NCT07588932
Study groupRoleWhat they receive
InterventionExperimentalParticipants will be instructed to take Telmisartan, Cilostazol IR (immediate release), and Metformin ER (extended release) (herein referred to as "proposed pharmacotherapy") while undergoing robot-assisted upper-extremity training. Participants will take these medications either once a day (QD) or twice a day (BID) as described in the protocol.
Receives: Drug: Telmisartan, Metformin, Cilostazol

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Fugl-Meyer Assessment - Upper Extremity (FMA-UE)

    The FMA-UE is a widely used, standardized test that measures movement, coordination, and reflexes of the arm, wrist, and hand after a stroke. Scores reflect the degree of motor impairment, with higher scores indicating better motor function (range 0-66).

    Measured: Will be assessed at baseline, at 8 weeks, and at the end of the 12-week study

Secondary outcomes (3)
  1. Action Research Arm Test (ARAT)

    The ARAT is a standardized test of upper limb function after stroke. It assesses the ability to grasp, grip, pinch, and move objects, with higher scores indicating better arm and hand function (range 0 to 57).

    Measured: Will be assessed at baseline, at 8 weeks, and at the end of the 12-week study.

  2. Stroke Impact Scale (SIS)

    The SIS is a self-reported questionnaire that measures how stroke has affected daily activities, mobility, communication, emotion, memory, and quality of life. Higher scores reflect better function and well-being (range 0 to 100)

    Measured: Will be completed at baseline, at 8 weeks, and at the end of the 12-week study.

  3. Mini Mental State Exam (MMSE scale)

    An 11-question measure that tests five areas of cognitive function: orientation, registration, attention and calculation, recall, and language (range 0 to 30).

    Measured: Will be completed at baseline, at 8 weeks, and at the end of the 12-week study.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 May 2026
  2. Study start18 May 2026
  3. Primary completion31 Dec 2027 (estimated)
  4. Study completion31 Dec 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
50 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07588932
Sponsor's protocol ID
2024P003711
Status last verified
Jul 2026
First submitted
9 May 2026
Last updated
14 Jul 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Primary and secondary outcome measures will be shared via publications (de-identified individual participant data will be included in the Supplementary Materials section of the manuscript).

Publications

  • Ahn CM, Hong SJ, Park JH, Kim JS, Lim DS. Cilostazol reduces the progression of carotid intima-media thickness without increasing the risk of bleeding in patients with acute coronary syndrome during a 2-year follow-up. Heart Vessels. 2011 Sep;26(5):502-10. doi: 10.1007/s00380-010-0093-1. Epub 2010 Dec 9.

    PubMed 21153029
  • Akhtar N, Singh R, Kamran S, Babu B, Sivasankaran S, Joseph S, Morgan D, Shuaib A. Diabetes: Chronic Metformin Treatment and Outcome Following Acute Stroke. Front Neurol. 2022 Apr 26;13:849607. doi: 10.3389/fneur.2022.849607. eCollection 2022.

    PubMed 35557626
  • Arbelaez-Quintero I, Palacios M. To Use or Not to Use Metformin in Cerebral Ischemia: A Review of the Application of Metformin in Stroke Rodents. Stroke Res Treat. 2017;2017:9756429. doi: 10.1155/2017/9756429. Epub 2017 May 28.

    PubMed 28634570
  • Bourget C, Adams KV, Morshead CM. Reduced microglia activation following metformin administration or microglia ablation is sufficient to prevent functional deficits in a mouse model of neonatal stroke. J Neuroinflammation. 2022 Jun 15;19(1):146. doi: 10.1186/s12974-022-02487-x.

    PubMed 35705953
  • Brown T, Forster RB, Cleanthis M, Mikhailidis DP, Stansby G, Stewart M. Cilostazol for intermittent claudication. Cochrane Database Syst Rev. 2021 Jun 30;6(6):CD003748. doi: 10.1002/14651858.CD003748.pub5.

    PubMed 34192807
  • Choi BR, Kim DH, Back DB, Kang CH, Moon WJ, Han JS, Choi DH, Kwon KJ, Shin CY, Kim BR, Lee J, Han SH, Kim HY. Characterization of White Matter Injury in a Rat Model of Chronic Cerebral Hypoperfusion. Stroke. 2016 Feb;47(2):542-7. doi: 10.1161/STROKEAHA.115.011679. Epub 2015 Dec 15.

    PubMed 26670084
  • Deguchi I, Furuya D, Fukuoka T, Tanahashi N. Effects of telmisartan on the cerebral circulation of hypertensive patients with chronic-stage stroke. Hypertens Res. 2012 Dec;35(12):1171-5. doi: 10.1038/hr.2012.105. Epub 2012 Jul 5.

    PubMed 22763480
  • Dobkin BH. Clinical practice. Rehabilitation after stroke. N Engl J Med. 2005 Apr 21;352(16):1677-84. doi: 10.1056/NEJMcp043511.

    PubMed 15843670
  • Garber AJ, Duncan TG, Goodman AM, Mills DJ, Rohlf JL. Efficacy of metformin in type II diabetes: results of a double-blind, placebo-controlled, dose-response trial. Am J Med. 1997 Dec;103(6):491-7. doi: 10.1016/s0002-9343(97)00254-4.

    PubMed 9428832
  • Grissi M, Boudot C, Assem M, Candellier A, Lando M, Poirot-Leclercq S, Boullier A, Bennis Y, Lenglet G, Avondo C, Lalau JD, Choukroun G, Massy ZA, Kamel S, Chillon JM, Henaut L. Metformin prevents stroke damage in non-diabetic female mice with chronic kidney disease. Sci Rep. 2021 Apr 2;11(1):7464. doi: 10.1038/s41598-021-86905-9.

    PubMed 33811249
  • Iwanami J, Mogi M, Tsukuda K, Min LJ, Sakata A, Jing F, Iwai M, Horiuchi M. Low dose of telmisartan prevents ischemic brain damage with peroxisome proliferator-activated receptor-gamma activation in diabetic mice. J Hypertens. 2010 Aug;28(8):1730-7. doi: 10.1097/HJH.0b013e32833a551a.

    PubMed 20498620
  • Jin Q, Cheng J, Liu Y, Wu J, Wang X, Wei S, Zhou X, Qin Z, Jia J, Zhen X. Improvement of functional recovery by chronic metformin treatment is associated with enhanced alternative activation of microglia/macrophages and increased angiogenesis and neurogenesis following experimental stroke. Brain Behav Immun. 2014 Aug;40:131-42. doi: 10.1016/j.bbi.2014.03.003. Epub 2014 Mar 12.

    PubMed 24632338
  • Jung KH, Chu K, Lee ST, Kim SJ, Song EC, Kim EH, Park DK, Sinn DI, Kim JM, Kim M, Roh JK. Blockade of AT1 receptor reduces apoptosis, inflammation, and oxidative stress in normotensive rats with intracerebral hemorrhage. J Pharmacol Exp Ther. 2007 Sep;322(3):1051-8. doi: 10.1124/jpet.107.120097. Epub 2007 May 30.

    PubMed 17538008
  • Kim YR, Kim HN, Hong KW, Shin HK, Choi BT. Anti-depressant effects of phosphodiesterase 3 inhibitor cilostazol in chronic mild stress-treated mice after ischemic stroke. Psychopharmacology (Berl). 2016 Mar;233(6):1055-66. doi: 10.1007/s00213-015-4185-6. Epub 2015 Dec 21.

    PubMed 26686236
  • Kim YR, Kim HN, Hong KW, Shin HK, Choi BT. Antidepressant Effects of Aripiprazole Augmentation for Cilostazol-Treated Mice Exposed to Chronic Mild Stress after Ischemic Stroke. Int J Mol Sci. 2017 Feb 8;18(2):355. doi: 10.3390/ijms18020355.

    PubMed 28208711

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Telmisartan, Metformin, Cilostazol in people with Stroke, run by Spaulding Rehabilitation Hospital 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 22 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: looking for participants now, as of the sponsor's last update on 14 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?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Madison Costa, OT (617-952-6388, mcosta11@mgb.org), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Fugl-Meyer Assessment - Upper Extremity (FMA-UE) (time frame: Will be assessed at baseline, at 8 weeks, and at the end of the 12-week study). 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 NCT07588932, which also lists 40 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 14 Jul 2026.

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