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Suicidal IdeationPhase 2/3LAP-ST vs ECTNCT06529029

Low Amplitude Pulse Seizure Therapy Versus Standard Ultra-Brief Right Unilateral Electroconvulsive Therapy

A Phase 2/3 study testing Sigma-Stim and RUL LAP-ST (Low-Amplitude Pulse Seizure Therapy - Right Unilateral) in people with Suicidal Ideation and Major Depressive Disorder, run by Michigan State University at 1 site in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This protocol proposes an initial randomized clinical trial that includes all patients with suicidal ideation (SI) at baseline, and with SI as the primary outcome measure to examine whether Right Unilateral Low-Amplitude Pulse - Seizure Therapy (RUL LAP-ST) treatment has more magnitude and rate of remission of SI as… Read more about this study

Who is it for?
Ages 18 to 90 years
What is being tested?
Sigma-Stim and RUL LAP-ST (Low-Amplitude Pulse Seizure Therapy - Right Unilateral)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteUnited States
Study dates
3 Jul 2024to Apr 2027
Phase
Phase 2/3
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 18 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients in whom ECT is clinically indicated: The referrals to ECT by the primary psychiatrist (before a consult by the ECT consultant) will serve to both increase the feasibility of the study and address any ethical concerns that the patient would not undergo ECT without having a valid full indication for the procedure as well as increase the external validity and generalizability of the study.
  • Male or female patients 18 to 90 years of age
  • Current DSM-5 criteria for MDE with any SI of major depressive, bipolar, or schizoaffective disorders
  • Montgomery-Asberg depression rating scale (MADRS) with 2 or more on SI item
  • Use of effective method of birth control for women of child-bearing capacity
  • Patient is medically stable
  • No anticipated need to alter psychotropic medications for the duration of the study (except for urgent/emergent situations)
  • Ability of patient to fully participate in the informed consent process

Who cannot join

  • Unstable or serious medical condition that substantially increases risks of ECT or cognitive impairment
  • Female patients who are pregnant or plan to be pregnant during the study or are breast-feeding
  • History of neurological disorder if deemed by the treating ECT physician or PI to pose a significant risk with ECT, or if there is any metal in the head or history of known structural brain lesion or skull defect that is deemed to affect cognition or safe ECT treatment
  • Implanted devices that make ECT unsafe
  • Clinical presentation of delirium or dementia
  • Active substance use disorders within 1 week of randomization
  • ECT in the past 1 month or prior failure to respond to an adequate course of ECT as deemed by the ECT physician treating the patient or the PI

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Pine Rest Christian Mental Health Services

    Grand Rapids, Michigan, 49548

Other trials in United States

About this study

Official title: Efficacy of Low Amplitude Pulse Seizure Therapy Versus Standard Ultra-Brief Right Unilateral Electroconvulsive Therapy in Remission of Suicidal Ideation

This protocol proposes an initial randomized clinical trial that includes all patients with suicidal ideation (SI) at baseline, and with SI as the primary outcome measure to examine whether Right Unilateral Low-Amplitude Pulse - Seizure Therapy (RUL LAP-ST) treatment has more magnitude and rate of remission of SI as conventional pulse amplitude Right Unilateral Electroconvulsive Therapy (RUL ECT) (based on our prior secondary analysis). Our central hypothesis is that RUL LAP-ST has significantly less cognitive/memory side effects (no memory side effects were noted in our prior studies for 500mA and 600mA) and thus is more favorable in terms of side effects compared to RUL conventional pulse amplitude ECT, while maintaining better anti-suicidal effect.

Read the detailed description

Suicide is one of the leading causes of mortality. Suicidal Ideation (SI) is a precursor to suicide. SI is especially hard to treat/remit in those with treatment-resistant psychiatric disorders (TRPD). This includes treatment-resistant mood disorders and psychotic disorders (such as schizophrenia and schizoaffective disorders). The above TRPD and the SI can remit with Electroconvulsive Therapy (ECT). That is to say, a transdiagnostic, evidence-based treatment for those patients, in addition to pharmacotherapy and psychotherapy, is ECT. ECT has both research support (mainly secondary analysis) and clinical evidence of a beneficial effect in remission of suicidality, as well as unsurpassed effect in treating primary mood and psychotic disorders including those who are treatment-resistant to other therapeutics. However, there are undeniable barriers to treatment with ECT. The most important barrier is memory side effects. ECT can help SI. ECT has also been shown to improve quality of life in a randomized trial by our group, which studied elderly patients with depression. Treating SI, along with the underlying disorder, especially in patients with TRPD is crucial in real-world patients who are clinically referred for ECT. These real-world referrals to ECT (by the patients' primary psychiatrist) will constitute the recruitment pool for this study.

Current amplitude drives electric fields to the deeper structures that are concerned with memory (Peterchev et al., 2010). Previously, the investigators performed the first in human proof of concept one arm open label clinical trial of LAP-ST, (N=22); followed by another small (N=7) pilot randomized, double-blinded clinical trial for the feasibility, safely and initial efficacy of LAP-ST, and another group later confirmed the more favorable cognitive side effects of LAP-ST compared to higher current amplitude (800mA).

However, efficacy of LAP-ST against suicidality has not been well established as primary outcome previously.

Thus, this protocol proposes an initial randomized clinical trial that includes all patients with SI at baseline, and with SI as the primary outcome measure to examine whether RUL LAP-ST treatment has more magnitude and rate of remission of SI as conventional pulse amplitude RUL ECT (based on our prior secondary analysis). Our central hypothesis is that RUL LAP-ST has significantly less cognitive/memory side effects (no memory side effects were noted in our prior studies for 500mA or 600mA) and thus is more favorable in terms of side effects compared to RUL conventional pulse amplitude ECT, while maintaining better anti-suicidal effect.

Being tested
Sigma-Stim, RUL LAP-ST (Low-Amplitude Pulse Seizure Therapy - Right Unilateral)
Keywords
Suicidal Ideation, Suicide, Depression, Major Depressive Disorder, Schizo Affective Disorder, Bipolar Disorder, Low Amplitude Seizure Therapy, Electroconvulsive Therapy, Neuromodulation, Brain Stimulation
Medical subject headings
Suicidal Ideation, Depressive Disorder, Major, Psychotic Disorders, Bipolar Disorder, Suicide, Depression

What participants receive

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

  • Sigma-StimDevice

    Also called Low Amplitude Seizure Therapy (LAP-ST)

    Right Ultra-Brief Low Amplitude Seizure Therapy at 600mA or 700mA vs Right Unilateral Ultra-Brief Standard ECT at 800mA.

  • RUL LAP-ST (Low-Amplitude Pulse Seizure Therapy - Right Unilateral)Procedure or surgery

    Please see description above

Study groups in NCT06529029
Study groupRoleWhat they receive
RUL LAP-ST (Low-Amplitude Pulse Seizure Therapy - Right Unilateral)ExperimentalLow Amplitude Pulse Seizure Therapy RUL ECT at 600mA (or 700mA)
Receives: Device: Sigma-Stim; Procedure: RUL LAP-ST (Low-Amplitude Pulse Seizure Therapy - Right Unilateral)
RUL ECT (Electroconvulsive Therapy)Active comparatorRUL Conventional pulse amplitude Electroconvulsive Therapy (ECT)
Receives: Device: Sigma-Stim

What is being measured

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

  1. Suicide Ideation - Self Report

    Beck Scale for Suicide Ideation (SSI-Worst and SSI-Current) - self reported. Minimum score of 0, maximum score of 42. Lower score indicates a better outcome.

    Measured: Through study completion, an average of four weeks

  2. Suicide Ideation - Clinician Rated

    Columbia Suicide Severity Rating Scale (C-SSRS) - clinician administered. Intensity of suicidal ideation: minimum score of 0, maximum score of 5. Lower score indicates a better outcome. Suicidal behavior not rated on a scale.

    Measured: Through study completion, an average of four weeks

Secondary outcomes (3)
  1. Depression - Clinician Rated

    Montgomery-Asberg Depression Rating Scale (MADRS) - clinician administered. Minimum score of 0, maximum score of 60. Lower score indicates better outcome.

    Measured: Through study completion, an average of four weeks

  2. Depression - Self Report

    Patient Health Questionnaire (PHQ9) - self reported. Minimum score of 0, maximum score of 27. Lower score indicates better outcome.

    Measured: Through study completion, an average of four weeks

  3. Depression - Self Report

    Quick Inventory of Depressive Symptomatology (QIDS-SR) - self reported. Minimum score of 0, maximum score of 27. Lower score indicates better outcome.

    Measured: Through study completion, an average of four weeks

Timeline

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

  1. First posted31 Jul 2024
  2. Study start3 Jul 2024
  3. Primary completion8 Oct 2026
  4. Study completionApr 2027 (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 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06529029
Sponsor's protocol ID
STUDY00010089
Acronym
LAP-ST vs ECT
Status last verified
Oct 2026
First submitted
19 Jul 2024
Last updated
2 Nov 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • Kochanek KD, Murphy S, Xu J, Arias E. Mortality in the United States, 2016. NCHS Data Brief. 2017 Dec;(293):1-8.

    PubMed 29319473
  • Curtin S, Warner M, Hedegaard H: Increase in suicide in the United States, 1999-2014. NCHS data brief no. 241. Hyattsville, MD: US Department of Health and Human Services, CDC, National Center for Health Statistics. https://www.cdc.gov/nchs/data/databriefs/db241.pdf. 2016

  • Kellner CH, Fink M, Knapp R, Petrides G, Husain M, Rummans T, Mueller M, Bernstein H, Rasmussen K, O'connor K, Smith G, Rush AJ, Biggs M, McClintock S, Bailine S, Malur C. Relief of expressed suicidal intent by ECT: a consortium for research in ECT study. Am J Psychiatry. 2005 May;162(5):977-82. doi: 10.1176/appi.ajp.162.5.977.

    PubMed 15863801
  • Fink M, Kellner CH, McCall WV. The role of ECT in suicide prevention. J ECT. 2014 Mar;30(1):5-9. doi: 10.1097/YCT.0b013e3182a6ad0d.

    PubMed 24091903
  • Sienaert P. Based on a True Story? The Portrayal of ECT in International Movies and Television Programs. Brain Stimul. 2016 Nov-Dec;9(6):882-891. doi: 10.1016/j.brs.2016.07.005. Epub 2016 Jul 20.

    PubMed 27522170
  • McCall WV, Lisanby SH, Rosenquist PB, Dooley M, Husain MM, Knapp RG, Petrides G, Rudorfer MV, Young RC, McClintock SM, Mueller M, Prudic J, Greenberg RM, Weiner RD, Bailine SH, Youssef NA, McCloud L, Kellner CH; CORE/PRIDE Work Group. Effects of continuation electroconvulsive therapy on quality of life in elderly depressed patients: A randomized clinical trial. J Psychiatr Res. 2018 Feb;97:65-69. doi: 10.1016/j.jpsychires.2017.11.001. Epub 2017 Nov 16.

    PubMed 29195125
  • Kulak-Bejda A, Bejda G, Waszkiewicz N. Mental Disorders, Cognitive Impairment and the Risk of Suicide in Older Adults. Front Psychiatry. 2021 Aug 25;12:695286. doi: 10.3389/fpsyt.2021.695286. eCollection 2021.

    PubMed 34512415
  • Lara E, Olaya B, Garin N, Ayuso-Mateos JL, Miret M, Moneta V, Haro JM. Is cognitive impairment associated with suicidality? A population-based study. Eur Neuropsychopharmacol. 2015 Feb;25(2):203-13. doi: 10.1016/j.euroneuro.2014.08.010. Epub 2014 Aug 21.

    PubMed 25190638
  • Fernandez-Sevillano J, Alberich S, Zorrilla I, Gonzalez-Ortega I, Lopez MP, Perez V, Vieta E, Gonzalez-Pinto A, Saiz P. Cognition in Recent Suicide Attempts: Altered Executive Function. Front Psychiatry. 2021 Jul 22;12:701140. doi: 10.3389/fpsyt.2021.701140. eCollection 2021.

    PubMed 34366931
  • Rutter SB, Cipriani N, Smith EC, Ramjas E, Vaccaro DH, Martin Lopez M, Calabrese WR, Torres D, Campos-Abraham P, Llaguno M, Soto E, Ghavami M, Perez-Rodriguez MM. Neurocognition and the Suicidal Process. Curr Top Behav Neurosci. 2020;46:117-153. doi: 10.1007/7854_2020_162.

    PubMed 32860213
  • Szanto K, Galfalvy H, Vanyukov PM, Keilp JG, Dombrovski AY. Pathways to Late-Life Suicidal Behavior: Cluster Analysis and Predictive Validation of Suicidal Behavior in a Sample of Older Adults With Major Depression. J Clin Psychiatry. 2018 Mar/Apr;79(2):17m11611. doi: 10.4088/JCP.17m11611.

    PubMed 29489076
  • Deng ZD, Lisanby SH, Peterchev AV. Electric field strength and focality in electroconvulsive therapy and magnetic seizure therapy: a finite element simulation study. J Neural Eng. 2011 Feb;8(1):016007. doi: 10.1088/1741-2560/8/1/016007. Epub 2011 Jan 19.

    PubMed 21248385
  • Peterchev AV, Rosa MA, Deng ZD, Prudic J, Lisanby SH. Electroconvulsive therapy stimulus parameters: rethinking dosage. J ECT. 2010 Sep;26(3):159-74. doi: 10.1097/YCT.0b013e3181e48165.

    PubMed 20805726
  • Youssef N, Sidhom E: Examination of Cognitive Profile and Variability in the Current Amplitude Domain of Low Current Amplitude ECT in Society of Biological Psychiatry 69th Annual Meeting (Published in Biological Psychiatry 2014 supplement) New York, New York2014

  • Youssef NA, Sidhom E. Feasibility, safety, and preliminary efficacy of Low Amplitude Seizure Therapy (LAP-ST): A proof of concept clinical trial in man. J Affect Disord. 2017 Nov;222:1-6. doi: 10.1016/j.jad.2017.06.022. Epub 2017 Jun 16.

    PubMed 28667887

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Sigma-Stim and RUL LAP-ST (Low-Amplitude Pulse Seizure Therapy - Right Unilateral) in people with Suicidal Ideation and Major Depressive Disorder, run by Michigan State University 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 8 inclusion and 7 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 2 Nov 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 combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

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?

Suicide Ideation - Self Report (time frame: Through study completion, an average of four weeks). The study lists 2 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 NCT06529029, which also lists 20 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 2 Nov 2026.

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