Safety, Tolerability and Efficacy of RGH-202 in Social Anxiety Disorder (STAGE) (STAGE)

November 5, 2026 updated by: Gedeon Richter Plc.

A Phase 2a, Multicenter, Randomized, Double-blind, Two-arm, Placebo-controlled Clinical Trial to Assess the Safety, Tolerability and Efficacy of RGH-202 for the Management of Performance and Social Interaction Anxiety in Adults With Social Anxiety Disorder

The reason for this trial is to see if the investigational product, called RGH-202, is safe and well tolerated, and can help people with social anxiety disorder.

The main questions this study aims to answer are:

  • Is RGH-202 safe and well tolerated in adults with social anxiety disorder?
  • Does RGH-202 reduce symptoms of social anxiety disorder compared with placebo? RGH-202 will be compared with a placebo (a product that does not contain any active ingredients) to determine whether the investigational medicine may be an effective treatment for SAD.

Participants will have an equal chance of receiving RGH-202 or the placebo taken for 6 weeks.

Participants will attend regular clinic visits for safety assessments, study evaluations and complete questionnaires related to their social anxiety symptoms.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
156

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Encino, California, United States, 91316
    • Florida
      • Jacksonville, Florida, United States, 32256
        • Clinical Neuroscience Solutions, LLC
        • Contact:
      • Orlando, Florida, United States, 32801
        • Clinical Neuroscience Solutions, LLC
        • Contact:
    • Nevada
      • Las Vegas, Nevada, United States, 89119
    • New York
      • Brooklyn, New York, United States, 11229
    • North Carolina
      • Charlotte, North Carolina, United States, 28211
        • New Hope Clinical Research Inc.
        • Contact:
    • Tennessee
      • Memphis, Tennessee, United States, 38119
        • Clinical Neuroscience Solutions, LLC
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion criteria:

  • Adults aged 18 to 65 years.
  • Otherwise healthy participants without clinically significant medical abnormalities.
  • Primary DSM-5-TR diagnosis of Social Anxiety Disorder (SAD), confirmed by structured diagnostic interview.
  • Body weight ≥40 kg and BMI 18.5-36.6 kg/m².
  • Participants of reproductive potential must agree to protocol-defined contraception requirements; women of childbearing potential must have negative pregnancy testing.
  • Able and willing to provide informed consent.
  • Able to understand study procedures and comply with study requirements.
  • LSAS total score ≥70 at Screening and Baseline.
  • Fluent in English and able to complete study assessments.
  • Able to swallow oral capsules.

Exclusion criteria:

  • Current primary psychiatric disorder other than SAD.
  • MADRS score ≥24.
  • History of schizophrenia spectrum disorder, bipolar disorder, clinically significant personality disorder, or other psychiatric conditions judged likely to interfere with study participation.
  • Current OCD, PTSD, panic disorder, or eating disorder.
  • Moderate to severe alcohol use disorder or substance use disorder within the previous 12 months.
  • Any clinically significant medical or psychiatric condition that may increase risk or interfere with study participation.
  • Clinically significant abnormal medical history, examination, laboratory, or ECG findings.
  • Moderate to severe renal impairment (eGFR <50 mL/min).
  • Family history of congenital long QT syndrome, Brugada syndrome, or unexplained sudden cardiac death.
  • Clinically significant QTc prolongation.
  • Clinically significant cardiac conduction abnormalities.
  • Family history of seizures.
  • History of seizure disorder or conditions associated with increased seizure risk.
  • Clinically significant chronic neurological disorder or chronic pain condition.
  • Current suicidal ideation, recent suicidal ideation, or lifetime suicide attempt.
  • Clinically significant laboratory abnormalities.
  • Clinically significant abnormal vital signs.
  • ALT, AST, or ALP >2× ULN.
  • Total bilirubin >1.5× ULN.
  • Current or chronic clinically significant liver disease.
  • Recent or ongoing treatment with anxiolytics, including benzodiazepines.
  • Recent or ongoing treatment with antidepressants, antipsychotics, mood stabilizers, stimulants, anticonvulsants, acetylcholinesterase inhibitors, or other psychotropic medications.
  • Recent use of medications or substances used to treat anxiety symptoms.
  • Concomitant medications that may interfere with study participation or interpretation.
  • Use of medications known to prolong QT interval.
  • Use of herbal or dietary supplements or recent initiation of herbal supplements with known hepatotoxic potential.
  • Use of medications that significantly affect CYP metabolism or drug disposition.
  • Recent use of strong CYP2D6 inhibitors.
  • Use of medications that are sensitive CYP3A4 substrates.
  • Current psychotherapy specifically targeting social anxiety disorder.
  • Participation in neuromodulation therapy.
  • Participation in another interventional clinical trial within the previous 3 months.
  • Positive HIV, hepatitis B, or hepatitis C test.
  • Positive drug screen or cannabis use.
  • Positive alcohol test at screening or baseline.
  • Positive pregnancy test.
  • Current excessive alcohol consumption.
  • Known hypersensitivity to study medication or excipients.
  • Lactation or breastfeeding.
  • Medical condition or prior surgery that may affect drug absorption.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Group receiving RGH-202

Oral capsule dosage form applied once daily for 42 days
Drug: RGH-202

Oral capsule dosage form applied once daily for 42 days
Placebo Comparator: Group receiving Placebo

Oral capsule dosage form applied once daily for 42 days
Drug: Placebo

Oral capsule dosage form applied once daily for 42 days

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Incidence and severity of adverse events
Time Frame: From enrollment to the end of follow-up at 8 week
From enrollment to the end of follow-up at 8 week

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change from baseline in performance and social interaction anxiety measured by the SUDS during structured speaking task and severity of social anxiety disorder measured by the LSAS to Week 4 and Week 6, respectively, vs placebo
Time Frame: From baseline to week 4 and 6, respectively

SUDS: Subjective Units of Distress Scale; LSAS: Liebowitz Social Anxiety Scale
From baseline to week 4 and 6, respectively

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Gedeon Richter Plc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 12, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 13, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 13, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 29, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 5, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 12, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 12, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 5, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • RGH-202-002

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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