Social anxiety nasal spray safety trial ends early
NCT ID NCT05030350
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
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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481 people
The number who actually took part.
- Started
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Oct 2021
- Finished
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Sep 2022
- Lead sponsor
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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
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Anyone
- Healthy volunteers
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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 Hide 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
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VistaGen Investigational Site
Watertown, Massachusetts, 02472, United States
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VistaGen Investigational Site
New York, New York, 10128, United States
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VistaGen Investigational Site
Bellevue, Washington, 98007, United States
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