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Social anxiety nasal spray safety trial ends early

NCT ID NCT05030350

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early This study
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested the safety of a nasal spray called PH94B for people with social anxiety disorder. Participants used the spray up to 4 times a day for up to 12 months when feeling anxious. The trial was terminated early, so we don't have full results on its safety or effectiveness.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
PH94B nasal spray
What this could lead to
If successful, this could point toward a fast-acting, on-demand treatment for anxiety in social situations.
What could go wrong
The trial was terminated early, so results are incomplete. It is unclear if PH94B is safe or effective long-term.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

481 people

The number who actually took part.

Started

Oct 2021

Finished

Sep 2022

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Most but not all patients will enter the study following completion of Palisade-1 (NCT047548020) and Palisade-2 (NCT05011396). Inclusion Criteria: 1. Male and female adults, 18 through 65 years of age, inclusive. 2. Women of childbearing potential must be able to commit to the consistent and correct use of an effective method of birth control throughout the study, and must also have a negative urine pregnancy test result at both Screening (Visit 1) (for subjects who attend Visit 1) and Baseline (Visit 2), prior to IP administration. Effective methods of contraception include: condoms with spermicide, diaphragm with spermicide, hormonal contraceptive agents (oral, transdermal, or injectable), or implantable contraceptive devices. 3. Current diagnosis of social anxiety disorder 4. Clinician-rated HAM-D17 total score \< 18 at study entry 5. LSAS score 50 or greater Exclusion Criteria: 1. Any history of bipolar disorder (I or II), schizophrenia, schizoaffective disorder, psychosis, anorexia or bulimia, autism-spectrum disorder, or obsessive-compulsive disorder. Any other current Axis I disorder, other than SAD, which is the primary focus of treatment. Note that subjects with concurrent Generalized Anxiety Disorder are eligible for the study provided that Generalized Anxiety Disorder is not the primary diagnosis. 2. Subjects who meet criteria for moderate or severe alcohol or substance use disorder within the 1 year prior to study entry. 3. In the opinion of the Investigator, the subject has a significant risk for suicidal behavior during the course of their participation in the study. 4. Clinically significant nasal pathology or history of significant nasal trauma, nasal surgery, total anosmia, or nasal septum perforation that may have damaged the nasal chemosensory epithelium. 5. An acute or chronic condition, including an infectious illness, uncontrolled seasonal allergies at the time of the study, or significant nasal congestion that potentially could affect drug delivery to the nasal chemosensory epithelium. 6. Subjects using the following psychotropic medications: anticonvulsants, mood stabilizers, antipsychotic medications, gabapentin, pregabalin, opioids, naltrexone, esketamine, and ketamine at enrollment. Subjects using lower doses of atypical antipsychotics at Screening may be eligible after discussion with the Medical Monitor (e.g., quetiapine \< 100 mg). In general, subjects using antidepressants or buspirone can continue to receive these provided that they have been taking them for a minimum of 2 months, and have been on a stable dose for a minimum of 1 month. 7. Use of anxiolytics, such as benzodiazepines or unapproved treatments such as beta blockers, within 30 days before study entry; concomitant use is prohibited during the study. Subjects who have been taking benzodiazepines daily for 1 month or longer at the time of Visit 1 are not eligible to participate. 8. Use of any over-the-counter product, prescription product, or herbal preparation for treatment of the symptoms of anxiety or social anxiety within 30 days before study entry; concomitant use is prohibited during the study. 9. Subjects with clinically significant abnormalities in hematology, blood chemistry, urinalysis, 12-lead ECG, or physical examination identified at the Screening visit or Baseline visit that in the clinical judgment of the Investigator, could place the subject at undue risk, interfere with study participation, or confound the results of the study. \-

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • VistaGen Investigational Site

    Watertown, Massachusetts, 02472, United States

  • VistaGen Investigational Site

    New York, New York, 10128, United States

  • VistaGen Investigational Site

    Bellevue, Washington, 98007, United States

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