AzTrials
AzTrials

Venous Thromboembolism (VTE)Phase 4SOPHIENCT06958588

Pulsed Electromagnetic Field Therapy or Pneumatic Compression VTE Prophylaxis

A Phase 4 study testing Experimental: Hyperslim and Active Comparator #1 in people with Venous Thromboembolism (VTE) and Intensive Care Medicine, run by Science Valley Research Institute at 1 site in Brazil.

Recruiting

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

Sites and contacts
Official record
Search all trials

Trial summary

Venous thromboembolism (VTE) is frequent in patients in the intensive care unit (ICU). Pharmacologic prophylaxis is sometimes contraindicated, and mechanical prophylaxis is used. Read more about this study

Who is it for?
Any age
What is being tested?
Experimental: Hyperslim and Active Comparator #1
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
1 siteBrazil
Study dates
25 May 2025to 20 Mar 2026
Phase
Phase 4
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Patients > 18 years old in ICU
  • PADUA score> 4 (medical patients) and/or Caprini score> 3 (surgical patients)
  • Contraindication to pharmacological prophylaxis or indication to combined (pharmacological and mechanical VTE prophylaxis)

Who cannot join

  • Patients < 18 years old in ICU
  • Unable to use mechanical prophylaxis due to trauma, burns, fracture, or problems in inferior members that prevent the use of mechanical prophylaxis
  • Life expectations less than 24 hours

Trial locations and contacts

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

Eduardo Fonseca Sad, MD contact

+55 31 991717860

edu.sad@uol.com.br

Brazil1 site, 1 recruiting
  • Hospital Vera Cruz, Belo Horizonte, MG, Brazil

    Belo Horizonte, BH, 30190-130

    Eduardo Fonseca Sad, MD, +55 31 991717860, edu.sad@uol.com.br

    Recruiting

Other trials in Brazil

About this study

Official title: Pulsed Electromagnetic Field Therapy (PEMF) Compared to Conventional Mechanical Prophylaxis for Venous Thromboembolism Prophylaxis in Patients in the Intensive Care Unit (ICU)

Venous thromboembolism (VTE) is frequent in patients in the intensive care unit (ICU). Pharmacologic prophylaxis is sometimes contraindicated, and mechanical prophylaxis is used. The primary objective of the study is to compare Pulsed Electromagnetic Field Therapy (PEMF) with conventional mechanical prophylaxis for the prevention of VTE in patients in the ICU.

Read the detailed description

This study is a prospective, randomized, open-label, active-controlled study, patients with indication for mechanical VTE prophylaxis or combined mechanical and pharmacological in the ICU from 2 selected sites in Brazil (Vera Cruz Hospital and Felicio Rocho Hospital, both in Belo Horizonte-MG, Brazil) will be enrolled after signing informed consent. All data will be recorded with a pre-established clinical recording file (CRF - RedCap) to demographics, risk factors, and clinical aspects of the patient's comorbidities.

A trained team member will perform clinical diagnosis and standard clinical evaluations, including imaging when indicated. Patients will be considered eligible if they are> 18 years old, have a PADUA score > 4 (medical patients) and/or Caprini > of 3 (surgical patients), and have a contraindication to pharmacological prophylaxis or indication to combined (pharmacological and mechanical VTE prophylaxis).

After signing informed consent, the patients will be screened and included in the study. After ICU admission, the patient will be interviewed by study investigators or trained physicians or nurses; inclusion patients will be randomized to receive either PEMF or intermittent pneumatic compression.

The devices will be placed in the ICUs following institutional standards and operational procedures. After randomization, trained physiotherapy and nurse teams will place and monitor each device. The intermittent pneumatic compression group will use the devices Covidien Kendall SCD 700® (Cardinal Health) or Doctor Life 2600® (Venosan). This group will have the device placed in the lower limbs, following the manufacturer's instructions, and monitored for 24 hours according to previous institutional protocol. This device will be kept full-time working in the patients while in the ICU.

The PEMF will be carried out using the Hyperslim® device. The Hyperslim® device is produced by Medical San (Lageado, RS, Brazil). It generates electromagnetic pulses through its pads, leading to local muscular supra-maximal contractions sustained for several seconds, increasing stress and workload without muscular adaptation. Its pads will be placed in the patient's lower limbs and used for 30 minutes thrice daily.

The critical care team will monitor patients 24 hours/day for VTE signs and symptoms, laboratory changes, and adverse local effects caused by machines like skin lesions, burns, and edema. A tolerability scale will be applied to every awake patient able to answer using a scale: 1= well tolerated; 2= tolerate with little discomfort; 3= tolerate with discomfort; 4= Not tolerated.

At the end of mechanical prophylaxis, patients will be evaluated for thromboembolic events, including diagnosis by imaging, with a mandatory Doppler ultrasound of the lower limbs at ICU discharge and 30 days post-randomization.

The primary efficacy outcome is a combination of symptomatic + asymptomatic VTE events at day 30 post randomization.

Evaluation also includes major bleeding events, defined as leading to transfusion of 2 or more units of blood or packed red cells, decrease in hemoglobin of 2 g/dL, bleeding in critical sites, defined as spinal, epidural, intraocular, intracranial, pericardial or retroperitoneal, local adverse events, including adverse events related to the use of the devices.

For descriptive statistics, mean and SD will be calculated for data following a Gaussian distribution.

The difference in VTE events between the two groups at the end of mechanical prophylaxis and day 30 will be tested using the intention-to-treat principle.

The efficacy analysis tests will be one-sided, with a type I error rate of 2·5%, assuming a two-sided 95% CI. The cumulative incidence of the composite events will be compared between the test and control groups, and the relative risk (RR) or risk ratio will be estimated. For the safety analysis, statistical tests will be two-sided, with a type I error rate of 5% and a two-sided 95% CI.

Tolerability, security, and facility to implement PEMF will be compared with intermittent pneumatic compression using an unpaired t-test.

Being tested
Experimental: Hyperslim, Active Comparator #1
Keywords
venous thromboembolism, Mechanical prophylaxis, Pulsed Electromagnetic Field Therapy (PEMF), ICU, intensive care unit
Medical subject headings
Venous Thromboembolism

What participants receive

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

  • Experimental: HyperslimDevice

    The PEMF will be carried out using the Hyperslim® device. The Hyperslim® device is produced by Medical San (Lageado, RS, Brazil).

  • Active Comparator #1Device

    The intermittent pneumatic compression group will use the devices Covidien Kendall SCD 700® (Cardinal Health) or Doctor Life 2600® (Venosan).

Study groups in NCT06958588
Study groupRoleWhat they receive
HyperslimExperimentalPulsed Electromagnetic Field Therapy (PEMF)
Receives: Device: Experimental: Hyperslim
Mechanical compressionActive comparatorIntermittent pneumatic compression ( Covidien Kendall SCD 700®, Cardinal Health or Doctor Life 2600® Venosan)
Receives: Device: Active Comparator #1

What is being measured

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

  1. Primary efficacy outcome

    The primary outcome is a composite of symptomatic and asymptomatic VTE (detected by mandatory Doppler ultrasound 24-48 hours after the end of mechanical prophylaxis or PEMF and on day 30 post-randomization) and death due to pulmonary embolism.

    Measured: 30 days

Timeline

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

  1. First posted6 May 2025
  2. Study start25 May 2025 (estimated)
  3. Primary completion20 Dec 2025 (estimated)
  4. Study completion20 Mar 2026 (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
Phase 4
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
50 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06958588
Sponsor's protocol ID
CAAE: 86295325.3.1001.0229
Acronym
SOPHIE
Status last verified
Mar 2025
First submitted
7 Mar 2025
Last updated
6 May 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Anonymized participant data can be made available upon requests directed to the corresponding author. Proposals will be reviewed based on scientific merit. After approval of a proposal, data can be shared through a secure online platform after signing a data access agreement.

Publications

  • Caprini JA. Mechanical methods for thrombosis prophylaxis. Clin Appl Thromb Hemost. 2010 Dec;16(6):668-73. doi: 10.1177/1076029609348645. Epub 2009 Oct 22.

    PubMed 19850588
  • Nicolaides AN, Fareed J, Spyropoulos AC, Kakkar RHL, Antignani PL, Avgerinos E, Baekgaard N, Barber E, Bush RL, Caprini JA, Clarke-Pearson DL, VAN Dreden P, Elalami I, Gerotziafas G, Gibbs H, Goldhaber S, Kakkos S, Lefkou E, Labropoulos N, Lopes RD, Mansilha A, Papageorgiou C, Prandoni P, Ramacciotti E, Rognoni C, Urbanek T, Walenga JM. Prevention and management of venous thromboembolism. International Consensus Statement. Guidelines according to scientific evidence. Int Angiol. 2024 Feb;43(1):1-222. doi: 10.23736/S0392-9590.23.05177-5. No abstract available.

    PubMed 38421381
  • Bounes F, Ferrandis R, Frere C, Helms J, Llau JV. European guidelines on peri-operative venous thromboembolism prophylaxis: first update.: Chapter 4: Prophylaxis in critical care patients. Eur J Anaesthesiol. 2024 Aug 1;41(8):582-588. doi: 10.1097/EJA.0000000000002011. Epub 2024 Jul 10. No abstract available.

    PubMed 38957023
  • Kearon C, Akl EA, Comerota AJ, Prandoni P, Bounameaux H, Goldhaber SZ, Nelson ME, Wells PS, Gould MK, Dentali F, Crowther M, Kahn SR. Antithrombotic therapy for VTE disease: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. Chest. 2012 Feb;141(2 Suppl):e419S-e496S. doi: 10.1378/chest.11-2301.

    PubMed 22315268
  • Schunemann HJ, Cushman M, Burnett AE, Kahn SR, Beyer-Westendorf J, Spencer FA, Rezende SM, Zakai NA, Bauer KA, Dentali F, Lansing J, Balduzzi S, Darzi A, Morgano GP, Neumann I, Nieuwlaat R, Yepes-Nunez JJ, Zhang Y, Wiercioch W. American Society of Hematology 2018 guidelines for management of venous thromboembolism: prophylaxis for hospitalized and nonhospitalized medical patients. Blood Adv. 2018 Nov 27;2(22):3198-3225. doi: 10.1182/bloodadvances.2018022954.

    PubMed 30482763
  • Ho KM, Chavan S, Pilcher D. Omission of early thromboprophylaxis and mortality in critically ill patients: a multicenter registry study. Chest. 2011 Dec;140(6):1436-46. doi: 10.1378/chest.11-1444. Epub 2011 Sep 22.

    PubMed 21940768
  • Fernando SM, Tran A, Cheng W, Sadeghirad B, Arabi YM, Cook DJ, Moller MH, Mehta S, Fowler RA, Burns KEA, Wells PS, Carrier M, Crowther MA, Scales DC, English SW, Kyeremanteng K, Kanji S, Kho ME, Rochwerg B. VTE Prophylaxis in Critically Ill Adults: A Systematic Review and Network Meta-analysis. Chest. 2022 Feb;161(2):418-428. doi: 10.1016/j.chest.2021.08.050. Epub 2021 Aug 19.

    PubMed 34419428
  • Lauzier F, Muscedere J, Deland E, Kutsogiannis DJ, Jacka M, Heels-Ansdell D, Crowther M, Cartin-Ceba R, Cox MJ, Zytaruk N, Foster D, Sinuff T, Clarke F, Thompson P, Hanna S, Cook D; Co-operative Network of Critical Care Knowledge Translation for Thromboprophylaxis (CONECCKT-T) Investigators; Canadian Critical Care Trials Group. Thromboprophylaxis patterns and determinants in critically ill patients: a multicenter audit. Crit Care. 2014 Apr 25;18(2):R82. doi: 10.1186/cc13844.

    PubMed 24766968

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Experimental: Hyperslim and Active Comparator #1 in people with Venous Thromboembolism (VTE) and Intensive Care Medicine, run by Science Valley Research Institute at 1 site in Brazil.

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 3 inclusion and 3 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 6 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 Brazil. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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 Eduardo Fonseca Sad, MD (+55 31 991717860, edu.sad@uol.com.br), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Primary efficacy outcome (time frame: 30 days). 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 NCT06958588, which also lists 8 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 6 May 2025; AzTrials last refreshed its copy on 27 Oct 2026.

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free AzTrials account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in