Spinal Cord InjuriesNCT04029974
Speed of Robotic Leg Movements and Orthostatic Hypotension in Subacute SCI
A study testing ErigoPro in people with Spinal Cord Injuries and Orthostatic Hypotension, run by Methodist Rehabilitation Center at 1 site in United States.
Trial summary
This study seeks to evaluate whether the speed (cadence) of lower extremity robotic movement has an impact on orthostatic hypotension and upright tolerance when training with the ErigoPro robotic tilt-stepper. Read more about this study
- Who is it for?
- Ages 16 to 70 yearsHealthy volunteers can take part
- Conditions the study is for
- Spinal Cord Injuries, Orthostatic Hypotension
- What is being tested?
- ErigoPro
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 35 participants
- Where
- 1 siteUnited States
- Study dates
- 20 Aug 2019to Dec 2026
- Phase
- Interventional
- 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 16 to 70 years
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Who may be able to join
- Reported overt signs/symptoms of OH during and/or outside of therapy sessions or primary therapist reports a drop in blood pressure consistent with OH during therapy sessions (SCI)
- Age 16 - 70 years (Healthy \& SCI)
- Traumatic SCI AIS A - C or non-traumatic SCI, all levels of injury (SCI)
- Time since SCI ≤ 12 weeks (SCI)
- Weight ≤ 297 lb, leg length 29" - 39" (per ErigoPro manual) (Healthy \& SCI)
- Systolic BP >80 mmHg and <140 mmHg in supine measured by nursing staff in the 24 hours prior to recruitment. (Healthy \& SCI)
Who cannot join
- Weight bearing precautions per medical record or primary therapist report (SCI)
- Skin lesions preventing fitting on the tilt-table or in robot cuffs (Healthy \& SCI)
- History of uncontrolled diabetes (diabetic autonomic issues) (Healthy \& SCI)
- Increase in pain/spasticity during passive leg movements during a hands-on eligibility assessment (SCI)
- Severe fixed contractures affecting the lower limbs (hip, knee, ankle joints) (SCI)
Trial locations and contacts
1 site in 1 country.
United States1 site
Methodist Rehabilitation Center
Jackson, Mississippi, 39216
About this study
Official title: Does the Speed of Robotic Leg Movements During Tilt-table Verticalization Affect Orthostatic Hypotension in Persons With Subacute SCI
This study seeks to evaluate whether the speed (cadence) of lower extremity robotic movement has an impact on orthostatic hypotension and upright tolerance when training with the ErigoPro robotic tilt-stepper. It is hypothesized more frequent short-lasting leg movements (faster cadence) reduces the occurrence/severity of orthostatic hypotension better than less frequent longer-lasting leg movements (slower cadence).
Read the detailed description
Orthostatic hypotension (OH) refers to a drop in blood pressure as a result of sitting up or standing up (moving against gravity). OH has been defined as a decrease in systolic (≥20 mmHg) or diastolic (≥10 mmHg) blood pressure upon transition from lying down to an upright position regardless of the presence or absence of overt symptoms (dizziness, lightheadedness, blurred vision, loss of consciousness).
OH is quite common after a spinal cord injury (SCI), especially with more severe injuries above the T6 level. OH can significantly interfere with activities of daily living and it can also interfere with participation during inpatient rehabilitation. Nearly 75% of acute SCI subjects were found to have OH and ~60% reported symptoms of OH during physical therapy activities, which limited almost 50% of the treatment sessions. Developments in rehabilitation technology have culminated in a device, a robotic tilt-stepper (RTS), e.g., known as the Erigo (Hocoma). In an RTS, the robot moves the legs through a pre-selected range of motion at different speeds to limit blood pooling during verticalization. This can be augmented by patterned functional electrical stimulation (FES), e.g., the ErigoPro.
The proof-of-principle study by the developers of the Erigo showed that passive leg movements can stabilize hemodynamic responses in healthy subjects who exhibited near-syncope when placed at 75-deg. for 30 min. Two earlier studies that examined the effect of passive leg movements on hemodynamic responses in healthy subjects used only one movement speed. Two other studies in chronic SCI (which compared the hemodynamic effects of passive leg movements alone or in combination with FES during a tilt-table verticalization) also used only one movement speed. Chi et al. showed no difference in vital signs between application of passive leg movements, FES, or the combination thereof in comparison to baseline.
Based on the literature review, it appears that no previous study has systematically examined the effects of different speeds of robotic leg movements on hemodynamic responses, which is the simplest and most user-friendly way to use RTS in a busy clinical setting. Moreover, no study recruited the most relevant target population, that is, persons with a subacute SCI who often develop OH when moved from lying down to a sitting or standing position. Therefore, it is the intent of this study to determine whether the speed of leg movement during progressive movement towards an upright position has a meaningful impact on a subjects blood pressure and onset of OH.
To test this hypothesis, healthy subjects and subjects with SCI will be recruited to participate in a one time training session with the ErigoPro. The study will occur in the SCI floor of a large rehab center. The sit-up test will be performed to assess if transitioning from supine to sitting position provokes symptoms/signs of OH. All prescribed medication will be noted and allowed as to not interfere with regular care and to reflect a real clinical practice. Each subject will then be transferred to the Erigo and secured to the device. Once secured to the device, the trial will be initiated and the subject will remain in supine for a resting period of approximately 5 minutes (to allow the subjects cardiovascular system to reach steady state) followed by another 2 minutes with their hemodynamic values continuously monitored by a beat-to-beat monitoring device (the Finapres Nova) which will aid in establishment of baseline hemodynamic thresholds. The assigned cadence (either 0, 40, or 80 steps per minute) will be initiated and the subject will then be progressed through angles of elevation including 0, 25, 50, and 75 degrees, spending approximately 2 minutes in each position with hemodynamic responses continuously monitored. If the subject demonstrates any signs/symptoms of OH or their blood pressure falls below or exceeds the established thresholds for safety or any other significant issues arise, they will be immediately returned to the supine position (0 degrees), the assigned cadence discontinued, and that portion of the trial terminated. If the subject demonstrates a return to baseline hemodynamic values within 5 - 10 minutes and they agree to continuation of the trial, they will be progressed to the next assigned speed. Should they not return to baseline values, the medical team will be contacted and the attending physician consulted. Any signs noted by the investigator or symptoms reported by the patient will be recorded and should a portion of the trial be terminated, the cause will be investigated to determine if it was truly due to OH or another issue. If the subject achieves 75 degrees for 2 minutes with no significant issues, they will be returned to supine followed by the next assigned speed being tested in the same fashion as the previously tested assigned speed.
- Conditions
- Spinal Cord Injuries, Orthostatic Hypotension
- Being tested
- ErigoPro
- Keywords
- Spinal cord injury, Orthostatic hypotension, Verticalization, ErigoPro, Finapres Nova
- Medical subject headings
- Spinal Cord Injuries, Hypotension, Orthostatic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ErigoProDevice
Robotic tilt-stepper lower extremity movements at the cadence of 0, 40, and 80 steps/minute.
| Study group | Role | What they receive |
|---|---|---|
| Treatment | Experimental | Progressive elevation (0 degrees, 25 degrees, 50 degrees, 75 degrees; x2 minutes in each position) while on robotic tilt-stepper at the cadence of 0, 40, and 80 steps/minute. Receives: Device: ErigoPro |
What is being measured
The primary outcome is the main question the study is designed to answer.
Systolic blood pressure variation
Systolic blood pressure will be beat-to-beat monitored. At each assigned cadence, systolic blood pressure is compared to 0-degrees elevation.
Measured: From enrollment to end of session, approximately 2 Hours
Secondary outcomes (3)
Heart rate variation
Heart rate will be beat-to-beat monitored. At each assigned cadence, heart rate is compared to 0-degrees elevation.
Measured: From enrollment to end of session, approximately 2 Hours
Frequency of orthostatic hypotension symptoms
Subject will be instructed to report subjective symptoms (dizziness, lightheadedness, blurred vision, etc) during each elevation angle for each assigned cadence and will be prompted by open ended questions. The investigator(s) will document any additional signs of symptoms (sweating, loss of consciousness, etc) that may not have been reported by the subject.
Measured: From enrollment to end of session, approximately 2 Hours
Frequency of discontinuation of a portion of the study or termination of the entire study
Investigator(s) will record the presence or absence of events requiring discontinuation of a portion of the study or termination of the entire study at each elevation angle for each assigned cadence.
Measured: From enrollment to end of session, approximately 2 Hours
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Jul 2019
- Study start20 Aug 2019
- Primary completionDec 2026 (estimated)
- Study completionDec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (17)Papers the sponsor has linked to this study.
- Other trials for Spinal Cord InjuriesStudies 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 N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- Within-subject repeated measures design
- Masking
- None (open label)
- Enrolment
- 35 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Methodist Rehabilitation Center
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Dobrivoje Stokic, MD, DSc, Study director, Methodist Rehabilitation Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04029974
- Sponsor's protocol ID
- MRC_ErigoPro_in_SCI
- Status last verified
- May 2025
- First submitted
- 12 Jul 2019
- Last updated
- 8 May 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
Publications
Consensus statement on the definition of orthostatic hypotension, pure autonomic failure, and multiple system atrophy. The Consensus Committee of the American Autonomic Society and the American Academy of Neurology. Neurology. 1996 May;46(5):1470. doi: 10.1212/wnl.46.5.1470. No abstract available.
PubMed 8628505Ravensbergen HJ, de Groot S, Post MW, Slootman HJ, van der Woude LH, Claydon VE. Cardiovascular function after spinal cord injury: prevalence and progression of dysfunction during inpatient rehabilitation and 5 years following discharge. Neurorehabil Neural Repair. 2014 Mar-Apr;28(3):219-29. doi: 10.1177/1545968313504542. Epub 2013 Nov 15.
PubMed 24243916Sahota IS, Ravensbergen HR, McGrath MS, Claydon VE. Cerebrovascular responses to orthostatic stress after spinal cord injury. J Neurotrauma. 2012 Oct 10;29(15):2446-56. doi: 10.1089/neu.2012.2379. Epub 2012 Sep 20.
PubMed 22720841Illman A, Stiller K, Williams M. The prevalence of orthostatic hypotension during physiotherapy treatment in patients with an acute spinal cord injury. Spinal Cord. 2000 Dec;38(12):741-7. doi: 10.1038/sj.sc.3101089.
PubMed 11175374Gillis DJ, Wouda M, Hjeltnes N. Non-pharmacological management of orthostatic hypotension after spinal cord injury: a critical review of the literature. Spinal Cord. 2008 Oct;46(10):652-9. doi: 10.1038/sc.2008.48. Epub 2008 Jun 10.
PubMed 18542098Sampson EE, Burnham RS, Andrews BJ. Functional electrical stimulation effect on orthostatic hypotension after spinal cord injury. Arch Phys Med Rehabil. 2000 Feb;81(2):139-43. doi: 10.1016/s0003-9993(00)90131-x.
PubMed 10668765Elokda AS, Nielsen DH, Shields RK. Effect of functional neuromuscular stimulation on postural related orthostatic stress in individuals with acute spinal cord injury. J Rehabil Res Dev. 2000 Sep-Oct;37(5):535-42.
PubMed 11322152Faghri PD, Yount JP, Pesce WJ, Seetharama S, Votto JJ. Circulatory hypokinesis and functional electric stimulation during standing in persons with spinal cord injury. Arch Phys Med Rehabil. 2001 Nov;82(11):1587-95. doi: 10.1053/apmr.2001.25984.
PubMed 11689980Faghri PD, Yount J. Electrically induced and voluntary activation of physiologic muscle pump: a comparison between spinal cord-injured and able-bodied individuals. Clin Rehabil. 2002 Dec;16(8):878-85. doi: 10.1191/0269215502cr570oa.
PubMed 12501950Chao CY, Cheing GL. The effects of lower-extremity functional electric stimulation on the orthostatic responses of people with tetraplegia. Arch Phys Med Rehabil. 2005 Jul;86(7):1427-33. doi: 10.1016/j.apmr.2004.12.033.
PubMed 16003676Hamzaid NA, Tean LT, Davis GM, Suhaimi A, Hasnan N. Electrical stimulation-evoked contractions blunt orthostatic hypotension in sub-acute spinal cord-injured individuals: two clinical case studies. Spinal Cord. 2015 May;53(5):375-9. doi: 10.1038/sc.2014.187. Epub 2014 Nov 4.
PubMed 25366533Chi L, Masani K, Miyatani M, Adam Thrasher T, Wayne Johnston K, Mardimae A, Kessler C, Fisher JA, Popovic MR. Cardiovascular response to functional electrical stimulation and dynamic tilt table therapy to improve orthostatic tolerance. J Electromyogr Kinesiol. 2008 Dec;18(6):900-7. doi: 10.1016/j.jelekin.2008.08.007. Epub 2008 Oct 2.
PubMed 18835189Czell D, Schreier R, Rupp R, Eberhard S, Colombo G, Dietz V. Influence of passive leg movements on blood circulation on the tilt table in healthy adults. J Neuroeng Rehabil. 2004 Oct 25;1(1):4. doi: 10.1186/1743-0003-1-4.
PubMed 15679913Yoshida T, Masani K, Sayenko DG, Miyatani M, Fisher JA, Popovic MR. Cardiovascular response of individuals with spinal cord injury to dynamic functional electrical stimulation under orthostatic stress. IEEE Trans Neural Syst Rehabil Eng. 2013 Jan;21(1):37-46. doi: 10.1109/TNSRE.2012.2211894. Epub 2012 Aug 9.
PubMed 22899587Sarabadani Tafreshi A, Riener R, Klamroth-Marganska V. Distinctive Steady-State Heart Rate and Blood Pressure Responses to Passive Robotic Leg Exercise and Functional Electrical Stimulation during Head-Up Tilt. Front Physiol. 2016 Dec 9;7:612. doi: 10.3389/fphys.2016.00612. eCollection 2016.
PubMed 28018240
Study at a glance
From the registry record, last updated by the sponsor on 8 May 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Does the Speed of Robotic Leg Movements During Tilt-table Verticalization Affect Orthostatic Hypotension in Persons With Subacute SCI
- ClinicalTrials.gov ID
- NCT04029974
- Acronym / sponsor ID
- MRC_ErigoPro_in_SCI
- Conditions
- Spinal Cord Injuries, Orthostatic Hypotension
- Keywords
- Spinal cord injury, Orthostatic hypotension, Verticalization, ErigoPro, Finapres Nova
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 35 participants (estimated)
- Lead sponsor
- Methodist Rehabilitation CenterUniversity, hospital or other
- Study start
- 20 Aug 2019 (actual)
- Primary completion
- Dec 2026 (estimated)
- Study completion
- Dec 2026 (estimated)
- First posted
- 23 Jul 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study seeks to evaluate whether the speed (cadence) of lower extremity robotic movement has an impact on orthostatic hypotension and upright tolerance when training with the ErigoPro robotic tilt-stepper. It is hypothesized more frequent short-lasting leg movements (faster cadence) reduces the occurrence/severity of orthostatic hypotension better than less frequent longer-lasting leg movements (slower cadence).
Detailed description
Orthostatic hypotension (OH) refers to a drop in blood pressure as a result of sitting up or standing up (moving against gravity). OH has been defined as a decrease in systolic (≥20 mmHg) or diastolic (≥10 mmHg) blood pressure upon transition from lying down to an upright position regardless of the presence or absence of overt symptoms (dizziness, lightheadedness, blurred vision, loss of consciousness).
OH is quite common after a spinal cord injury (SCI), especially with more severe injuries above the T6 level. OH can significantly interfere with activities of daily living and it can also interfere with participation during inpatient rehabilitation. Nearly 75% of acute SCI subjects were found to have OH and ~60% reported symptoms of OH during physical therapy activities, which limited almost 50% of the treatment sessions. Developments in rehabilitation technology have culminated in a device, a robotic tilt-stepper (RTS), e.g., known as the Erigo (Hocoma). In an RTS, the robot moves the legs through a pre-selected range of motion at different speeds to limit blood pooling during verticalization. This can be augmented by patterned functional electrical stimulation (FES), e.g., the ErigoPro.
The proof-of-principle study by the developers of the Erigo showed that passive leg movements can stabilize hemodynamic responses in healthy subjects who exhibited near-syncope when placed at 75-deg. for 30 min. Two earlier studies that examined the effect of passive leg movements on hemodynamic responses in healthy subjects used only one movement speed. Two other studies in chronic SCI (which compared the hemodynamic effects of passive leg movements alone or in combination with FES during a tilt-table verticalization) also used only one movement speed. Chi et al. showed no difference in vital signs between application of passive leg movements, FES, or the combination thereof in comparison to baseline.
Based on the literature review, it appears that no previous study has systematically examined the effects of different speeds of robotic leg movements on hemodynamic responses, which is the simplest and most user-friendly way to use RTS in a busy clinical setting. Moreover, no study recruited the most relevant target population, that is, persons with a subacute SCI who often develop OH when moved from lying down to a sitting or standing position. Therefore, it is the intent of this study to determine whether the speed of leg movement during progressive movement towards an upright position has a meaningful impact on a subjects blood pressure and onset of OH.
To test this hypothesis, healthy subjects and subjects with SCI will be recruited to participate in a one time training session with the ErigoPro. The study will occur in the SCI floor of a large rehab center. The sit-up test will be performed to assess if transitioning from supine to sitting position provokes symptoms/signs of OH. All prescribed medication will be noted and allowed as to not interfere with regular care and to reflect a real clinical practice. Each subject will then be transferred to the Erigo and secured to the device. Once secured to the device, the trial will be initiated and the subject will remain in supine for a resting period of approximately 5 minutes (to allow the subjects cardiovascular system to reach steady state) followed by another 2 minutes with their hemodynamic values continuously monitored by a beat-to-beat monitoring device (the Finapres Nova) which will aid in establishment of baseline hemodynamic thresholds. The assigned cadence (either 0, 40, or 80 steps per minute) will be initiated and the subject will then be progressed through angles of elevation including 0, 25, 50, and 75 degrees, spending approximately 2 minutes in each position with hemodynamic responses continuously monitored. If the subject demonstrates any signs/symptoms of OH or their blood pressure falls below or exceeds the established thresholds for safety or any other significant issues arise, they will be immediately returned to the supine position (0 degrees), the assigned cadence discontinued, and that portion of the trial terminated. If the subject demonstrates a return to baseline hemodynamic values within 5 - 10 minutes and they agree to continuation of the trial, they will be progressed to the next assigned speed. Should they not return to baseline values, the medical team will be contacted and the attending physician consulted. Any signs noted by the investigator or symptoms reported by the patient will be recorded and should a portion of the trial be terminated, the cause will be investigated to determine if it was truly due to OH or another issue. If the subject achieves 75 degrees for 2 minutes with no significant issues, they will be returned to supine followed by the next assigned speed being tested in the same fashion as the previously tested assigned speed.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- Within-subject repeated measures design
| Arm | Type | Receives |
|---|---|---|
| Treatment | Experimental | Device: ErigoProProgressive elevation (0 degrees, 25 degrees, 50 degrees, 75 degrees; x2 minutes in each position) while on robotic tilt-stepper at the cadence of 0, 40, and 80 steps/minute. |
Who may qualify
- Ages
- 16 to 70 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (6 listed)
- Reported overt signs/symptoms of OH during and/or outside of therapy sessions or primary therapist reports a drop in blood pressure consistent with OH during therapy sessions (SCI)
- Age 16 - 70 years (Healthy \& SCI)
- Traumatic SCI AIS A - C or non-traumatic SCI, all levels of injury (SCI)
- Time since SCI ≤ 12 weeks (SCI)
- Weight ≤ 297 lb, leg length 29" - 39" (per ErigoPro manual) (Healthy \& SCI)
Key exclusion criteria (5 listed)
- Weight bearing precautions per medical record or primary therapist report (SCI)
- Skin lesions preventing fitting on the tilt-table or in robot cuffs (Healthy \& SCI)
- History of uncontrolled diabetes (diabetic autonomic issues) (Healthy \& SCI)
- Increase in pain/spasticity during passive leg movements during a hands-on eligibility assessment (SCI)
- Severe fixed contractures affecting the lower limbs (hip, knee, ankle joints) (SCI)
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 |
|---|---|---|
| ErigoProRobotic tilt-stepper lower extremity movements at the cadence of 0, 40, and 80 steps/minute. | Device | Treatment |
Primary outcome
Systolic blood pressure variation
Time frame: From enrollment to end of session, approximately 2 Hours
Systolic blood pressure will be beat-to-beat monitored. At each assigned cadence, systolic blood pressure is compared to 0-degrees elevation.
3 secondary outcomes
Heart rate variation
Time frame: From enrollment to end of session, approximately 2 Hours
Frequency of orthostatic hypotension symptoms
Time frame: From enrollment to end of session, approximately 2 Hours
Frequency of discontinuation of a portion of the study or termination of the entire study
Time frame: From enrollment to end of session, approximately 2 Hours
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 May 2025.
- Background: PubMed 8628505Consensus statement on the definition of orthostatic hypotension, pure autonomic failure, and multiple system atrophy. The Consensus Committee of the American Autonomic Society and the American Academy of Neurology. Neurology. 1996 May;46(5):1470. doi: 10.1212/wnl.46.5.1470. No abstract available.
- Background: PubMed 24243916Ravensbergen HJ, de Groot S, Post MW, Slootman HJ, van der Woude LH, Claydon VE. Cardiovascular function after spinal cord injury: prevalence and progression of dysfunction during inpatient rehabilitation and 5 years following discharge. Neurorehabil Neural Repair. 2014 Mar-Apr;28(3):219-29. doi: 10.1177/1545968313504542. Epub 2013 Nov 15.
- Background: PubMed 22720841Sahota IS, Ravensbergen HR, McGrath MS, Claydon VE. Cerebrovascular responses to orthostatic stress after spinal cord injury. J Neurotrauma. 2012 Oct 10;29(15):2446-56. doi: 10.1089/neu.2012.2379. Epub 2012 Sep 20.
- Background: PubMed 11175374Illman A, Stiller K, Williams M. The prevalence of orthostatic hypotension during physiotherapy treatment in patients with an acute spinal cord injury. Spinal Cord. 2000 Dec;38(12):741-7. doi: 10.1038/sj.sc.3101089.
- Background: PubMed 18542098Gillis DJ, Wouda M, Hjeltnes N. Non-pharmacological management of orthostatic hypotension after spinal cord injury: a critical review of the literature. Spinal Cord. 2008 Oct;46(10):652-9. doi: 10.1038/sc.2008.48. Epub 2008 Jun 10.
- Background: PubMed 10668765Sampson EE, Burnham RS, Andrews BJ. Functional electrical stimulation effect on orthostatic hypotension after spinal cord injury. Arch Phys Med Rehabil. 2000 Feb;81(2):139-43. doi: 10.1016/s0003-9993(00)90131-x.
- Background: PubMed 11322152Elokda AS, Nielsen DH, Shields RK. Effect of functional neuromuscular stimulation on postural related orthostatic stress in individuals with acute spinal cord injury. J Rehabil Res Dev. 2000 Sep-Oct;37(5):535-42.
- Background: PubMed 11689980Faghri PD, Yount JP, Pesce WJ, Seetharama S, Votto JJ. Circulatory hypokinesis and functional electric stimulation during standing in persons with spinal cord injury. Arch Phys Med Rehabil. 2001 Nov;82(11):1587-95. doi: 10.1053/apmr.2001.25984.
- Background: PubMed 12501950Faghri PD, Yount J. Electrically induced and voluntary activation of physiologic muscle pump: a comparison between spinal cord-injured and able-bodied individuals. Clin Rehabil. 2002 Dec;16(8):878-85. doi: 10.1191/0269215502cr570oa.
- Background: PubMed 16003676Chao CY, Cheing GL. The effects of lower-extremity functional electric stimulation on the orthostatic responses of people with tetraplegia. Arch Phys Med Rehabil. 2005 Jul;86(7):1427-33. doi: 10.1016/j.apmr.2004.12.033.
- Background: PubMed 25366533Hamzaid NA, Tean LT, Davis GM, Suhaimi A, Hasnan N. Electrical stimulation-evoked contractions blunt orthostatic hypotension in sub-acute spinal cord-injured individuals: two clinical case studies. Spinal Cord. 2015 May;53(5):375-9. doi: 10.1038/sc.2014.187. Epub 2014 Nov 4.
- Background: PubMed 18835189Chi L, Masani K, Miyatani M, Adam Thrasher T, Wayne Johnston K, Mardimae A, Kessler C, Fisher JA, Popovic MR. Cardiovascular response to functional electrical stimulation and dynamic tilt table therapy to improve orthostatic tolerance. J Electromyogr Kinesiol. 2008 Dec;18(6):900-7. doi: 10.1016/j.jelekin.2008.08.007. Epub 2008 Oct 2.
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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.
Dobrivoje Stokic, MD, DSc study director
Methodist Rehabilitation Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing ErigoPro in people with Spinal Cord Injuries and Orthostatic Hypotension, run by Methodist Rehabilitation Center 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 6 inclusion and 5 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: under way, not looking for participants, as of the sponsor's last update on 8 May 2025. 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.
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?
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?
Systolic blood pressure variation (time frame: From enrollment to end of session, approximately 2 Hours). 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 NCT04029974, which also lists 17 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 8 May 2025.