AzTrials
AzTrials

Obsessive - Compulsive DisorderPhase 2NCT07887633

SONATA Dose Duration LIFU for OCD

A Phase 2 study testing ATTN201 - Low Intensity Focused Ultrasound in people with Obsessive - Compulsive Disorder, run by University of Pennsylvania 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
Search all trials

Trial summary

This study is testing a new, non-invasive brain stimulation approach for adults with Obsessive Compulsive Disorder (OCD). Researchers are evaluating the safety, tolerability, and target engagement of low-intensity focused ultrasound (LIFU) directed at a brain region called the subthalamic nucleus (STN). Read more about this study

Who is it for?
Ages 22 to 80 years
Conditions the study is for
Obsessive - Compulsive Disorder
What is being tested?
ATTN201 - Low Intensity Focused Ultrasound
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
20 participants
Where
1 siteUnited States
Study dates
15 Sep 2026to 15 Sep 2028
Phase
Phase 2
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 22 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age 22-80
  • Meet DSM-V criteria for OCD ≥ 1 year with a Y-BOCS score ≥ 16
  • Must be on the same stable dose(s) of OCD medication for at least 4 weeks prior to screening and throughout the course of the study

Who cannot join

  • Co-morbid psychiatric disorder other than depression or anxiety disorder
  • Active suicidal risk (defined by C-SSRS)
  • History of neurological condition
  • Pregnant or breastfeeding, or planning to become pregnant during the study period

Trial locations and contacts

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

United States1 site, 1 recruiting
  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

    Rishi Suresh, 215-746-8901, rishi.suresh1@pennmedicine.upenn.edu

    Giovanna Rocchio, giovanna.rocchio@pennmedicine.upenn.edu

    Recruiting

Other trials in United States

About this study

Official title: Subcortical OCD Neuromodulation With Acoustic Therapy - Dose Duration Optimization

This study is testing a new, non-invasive brain stimulation approach for adults with Obsessive Compulsive Disorder (OCD). Researchers are evaluating the safety, tolerability, and target engagement of low-intensity focused ultrasound (LIFU) directed at a brain region called the subthalamic nucleus (STN). The ultrasound is delivered using a wearable device called ATTN201 (developed by Attune Neurosciences).

Read the detailed description

Twenty participants will take part in this randomized, sham-controlled trial. This means participants will be randomly assigned to receive either active LIFU or a sham (inactive) version of the treatment, and all participants will not know which one was given until the end of participation.

Participants will be seen multiple times a week for LIFU sessions, with a safety check completed halfway through the number of sessions. All participants will undergo MRI brain scans at the start of the study and at three follow-up checkpoints to help researchers understand how the treatment affects the brain.

Being tested
ATTN201 - Low Intensity Focused Ultrasound
Keywords
Low Intensity Focused Ultrasound, LIFU, OCD
Medical subject headings
Compulsive Personality Disorder

What participants receive

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

  • ATTN201 - Low Intensity Focused UltrasoundDevice

    Low-intensity focused ultrasound (LIFU) will be administered using the Attune ATTN201 device. The intervention is targeted bilaterally to the Sub-thalamic Nucleus (STN) region of the brain. All participants receive 4 sessions in their assigned condition (active LIFU or Sham) and, if patient-level stopping criteria are not met, continue in that same assigned condition to a total of 8 sessions, twice weekly over approximately 4 weeks.

Study groups in NCT07887633
Study groupRoleWhat they receive
Active StimulationExperimentalParticipants receive low intensity focused ultrasound stimulation
Receives: Device: ATTN201 - Low Intensity Focused Ultrasound
Sham StimulationSham comparatorParticipants received unfocused ultrasound, which mimic the auditory and peripheral sensations of active stimulation without delivering meaningful pressure to the brain target
Receives: Device: ATTN201 - Low Intensity Focused Ultrasound

What is being measured

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

  1. Participant Report of Symptoms

    The 22-item Participant Report of Symptoms questionnaire provides granular, visit-level characterization of tolerability and symptomatic response across the treatment course, complementing the primary tolerability endpoints.

    Measured: 4 weeks

  2. Visual Analog Scale

    The Visual Analog Scale, which assesses on a scale from 0-10 the participants obsessions, compulsions, distress, depression, energy and anxiety. This survey provides granular, visit-level characterization of tolerability and symptomatic response across the treatment course, complementing the primary tolerability endpoints.

    Measured: 4 weeks

  3. Beck Depression Inventory

    The Beck Depression Inventory (BDI-II)allows for monitoring of unintended effects on mood, given that the STN plays a role in emotional processing and provide a broader characterization of the clinical impact of treatment. The BDI-II is an assessment used to measure severity of depression

    Measured: 4 weeks

  4. Becks Anxiety Inventory

    The Becks Anxiety Inventory (BAI) allows for monitoring of unintended effects on anxiety, given that the STN plays a role in emotional processing and provide a broader characterization of the clinical impact of treatment. The BAI is an assessment used to measure clinical anxiety.

    Measured: 4 weeks

  5. Clinical Global Impression Scale

    The Clinical Global Impression scale asks two questions; the severity of illness and the change in illness. This scale allows a clinician completed score to monitor unintended effects on mood and anxiety. The Clinical Global Impressions - Improvement (CGI-I) scale is used to measure how much a patient's illness has improved or worsened. The Clinical Global Impressions - Severity (CGI-S) is used to measure how severe the patient's illness is.

    Measured: 4 weeks.

Timeline

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

  1. First posted21 Oct 2026
  2. Study start15 Sep 2026
  3. Primary completion15 Jun 2028 (estimated)
  4. Study completion15 Sep 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
Phase 2
Primary purpose
Device feasibility
Allocation
Randomised
Intervention model
Parallel groups
Model description
participants are randomized 1:1 to active or sham stimulation and remain in their assigned condition throughout
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07887633
Sponsor's protocol ID
26-7004
Status last verified
Oct 2026
First submitted
30 Sep 2026
Last updated
21 Oct 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No: Individual participant data (IPD) will not be shared with outside researchers at this time to ensure the protection of participant privacy and to maintain strict compliance with the University of Pennsylvania Institutional Review Board (IRB) approved protocol.

Publications

  • Gaur P, Casey KM, Kubanek J, Li N, Mohammadjavadi M, Saenz Y, Glover GH, Bouley DM, Pauly KB. Histologic safety of transcranial focused ultrasound neuromodulation and magnetic resonance acoustic radiation force imaging in rhesus macaques and sheep. Brain Stimul. 2020 May-Jun;13(3):804-814. doi: 10.1016/j.brs.2020.02.017. Epub 2020 Feb 21.

    PubMed 32289711
  • Pallanti S, Quercioli L. Treatment-refractory obsessive-compulsive disorder: methodological issues, operational definitions and therapeutic lines. Prog Neuropsychopharmacol Biol Psychiatry. 2006 May;30(3):400-12. doi: 10.1016/j.pnpbp.2005.11.028. Epub 2006 Feb 28.

    PubMed 16503369
  • Aubry JF, Attali D, Schafer ME, Fouragnan E, Caskey CF, Chen R, Darmani G, Bubrick EJ, Sallet J, Butler CR, Stagg CJ, Klein-Flugge MC, Yoo SS, Holland C, Treeby B, Martin E, Verhagen L, Pauly KB. ITRUSST Consensus on Biophysical Safety for Transcranial Ultrasound Stimulation. ArXiv [Preprint]. 2025 Oct 9:arXiv:2311.05359v3.

    PubMed 41281204
  • Darmani G, Bergmann TO, Butts Pauly K, Caskey CF, de Lecea L, Fomenko A, Fouragnan E, Legon W, Murphy KR, Nandi T, Phipps MA, Pinton G, Ramezanpour H, Sallet J, Yaakub SN, Yoo SS, Chen R. Non-invasive transcranial ultrasound stimulation for neuromodulation. Clin Neurophysiol. 2022 Mar;135:51-73. doi: 10.1016/j.clinph.2021.12.010. Epub 2021 Dec 31.

    PubMed 35033772
  • Stern JM, Spivak NM, Becerra SA, Kuhn TP, Korb AS, Kronemyer D, Khanlou N, Reyes SD, Monti MM, Schnakers C, Walshaw P, Keselman I, Cohen MS, Yong W, Fried I, Jordan SE, Schafer ME, Engel J Jr, Bystritsky A. Safety of focused ultrasound neuromodulation in humans with temporal lobe epilepsy. Brain Stimul. 2021 Jul-Aug;14(4):1022-1031. doi: 10.1016/j.brs.2021.06.003. Epub 2021 Jun 23.

    PubMed 34198105
  • Kim H, Chiu A, Lee SD, Fischer K, Yoo SS. Focused ultrasound-mediated non-invasive brain stimulation: examination of sonication parameters. Brain Stimul. 2014 Sep-Oct;7(5):748-56. doi: 10.1016/j.brs.2014.06.011. Epub 2014 Jul 2.

    PubMed 25088462
  • Pasquinelli C, Hanson LG, Siebner HR, Lee HJ, Thielscher A. Safety of transcranial focused ultrasound stimulation: A systematic review of the state of knowledge from both human and animal studies. Brain Stimul. 2019 Nov-Dec;12(6):1367-1380. doi: 10.1016/j.brs.2019.07.024. Epub 2019 Jul 31.

    PubMed 31401074
  • Yoon K, Lee W, Lee JE, Xu L, Croce P, Foley L, Yoo SS. Effects of sonication parameters on transcranial focused ultrasound brain stimulation in an ovine model. PLoS One. 2019 Oct 24;14(10):e0224311. doi: 10.1371/journal.pone.0224311. eCollection 2019.

    PubMed 31648261
  • Caulfield KA, Sege CT, Weaver J, Murphy KR, Passaro T, Meads K, Dadgar-Kiani E, Antonucci MU, Good C, McTeague LM. Focused ultrasound to bilateral thalamic nuclei significantly improves human cognitive attention in a frequency- and intensity-dependent manner. Brain Stimul. 2026 Sep-Oct;19(5):103171. doi: 10.1016/j.brs.2026.103171. Epub 2026 Jul 21.

    PubMed 42480914
  • Mallet L, Polosan M, Jaafari N, Baup N, Welter ML, Fontaine D, du Montcel ST, Yelnik J, Chereau I, Arbus C, Raoul S, Aouizerate B, Damier P, Chabardes S, Czernecki V, Ardouin C, Krebs MO, Bardinet E, Chaynes P, Burbaud P, Cornu P, Derost P, Bougerol T, Bataille B, Mattei V, Dormont D, Devaux B, Verin M, Houeto JL, Pollak P, Benabid AL, Agid Y, Krack P, Millet B, Pelissolo A; STOC Study Group. Subthalamic nucleus stimulation in severe obsessive-compulsive disorder. N Engl J Med. 2008 Nov 13;359(20):2121-34. doi: 10.1056/NEJMoa0708514.

    PubMed 19005196
  • Alonso P, Cuadras D, Gabriels L, Denys D, Goodman W, Greenberg BD, Jimenez-Ponce F, Kuhn J, Lenartz D, Mallet L, Nuttin B, Real E, Segalas C, Schuurman R, du Montcel ST, Menchon JM. Deep Brain Stimulation for Obsessive-Compulsive Disorder: A Meta-Analysis of Treatment Outcome and Predictors of Response. PLoS One. 2015 Jul 24;10(7):e0133591. doi: 10.1371/journal.pone.0133591. eCollection 2015.

    PubMed 26208305

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing ATTN201 - Low Intensity Focused Ultrasound in people with Obsessive - Compulsive Disorder, run by University of Pennsylvania 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 3 inclusion and 4 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 21 Oct 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. Some participants in this study may receive a placebo. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 Rishi Suresh (215-746-8901, rishi.suresh1@pennmedicine.upenn.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Participant Report of Symptoms (time frame: 4 weeks). 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 NCT07887633, which also lists 11 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 21 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