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Completed Phase 2 Interventional

A Study of the Efficacy and Safety of SP-624 in the Treatment of Adults With Major Depressive Disorder

ClinicalTrials.gov ID: NCT06254612

Public ClinicalTrials.gov record NCT06254612. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 10, 2026, 3:08 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Multi-center, Double-Blind, Randomized, Placebo-Controlled Study of the Efficacy and Safety of SP-624 in the Treatment of Adults With Major Depressive Disorder

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is a Phase 2B clinical study evaluating the effectiveness and safety of SP-624 as compared to placebo in the treatment of adults with Major Depressive Disorder.

Study identification

NCT ID
NCT06254612
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Sirtsei Pharmaceuticals, Inc.
Industry
Enrollment
497 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years to 65 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 24, 2024
Primary completion
Jul 7, 2026
Completion
Jul 7, 2026
Last update posted
Aug 17, 2026

2024 – 2026

United States locations

U.S. sites
50
U.S. states
24
U.S. cities
49
Facility City State ZIP Site status
IMA Clinical Research Phoenix Arizona 85012
Noble Clinical Research Tucson Arizona 85704
SanRo Clinical Research Group Bryant Arkansas 72022
Clinical Innovations Bellflower California 90706
Sun Valley Research Center Imperial California 92251
Synergy San Diego Lemon Grove California 91945
Excell Research Oceanside California 92056
CiTrials Riverside California 92506
Collaborative Neuroscience Research Torrance California 90504
Sunwise Clinical Research Walnut Creek California 94596
Next Level Clinical Trials West Covina California 91790
MCB Clinical Research Centers Colorado Springs Colorado 80910
Clinical Neuroscience Solutions Jacksonville Florida 32256
Accel Clinical Lakeland Florida 33803
Segal Trials Lauderhill Florida 33319
Segal Trials - Miami Lakes Miami Lakes Florida 33016
Clinical Neuroscience Solutions Orlando Florida 32801
DMI Research Pinellas Park Florida 33782
Accelerated Enrollment Solutions Atlanta Georgia 30328
Velocity Clinical Research Meridian Idaho 83642
Revive Research Institute Elgin Illinois 60123
Tandem Clinical Research Marrero Louisiana 70072
Boston Clinical Trials Boston Massachusetts 02131
Neurobehavioral Medicine Group Bloomfield Hills Michigan 48302
Midwest Research Group Saint Charles Missouri 63304
Alivation Research Lincoln Nebraska 68526
IMA Clinical Research Las Vegas Nevada 89102
Redbird Research Las Vegas Nevada 89119
Center for Emotional Fitness Cherry Hill New Jersey 08002
CenExel HRI Marlton New Jersey 08053
IMA Clinical Research Albuquerque New Mexico 87109
Integrative Clinical Trials Brooklyn New York 11229
Pioneer Clinical Research New York New York 10016
Magnolia Clinical Research Cary North Carolina 27511
UNC Chapel Hill Chapel Hill North Carolina 27599
New Hope Clinical Research Charlotte North Carolina 28211
Velocity Clinical Research Beachwood Ohio 44122
Midwest Clinical Research Center Dayton Ohio 45417
North Star Medical Research Middleburg Heights Ohio 44130
Summit Headlands Portland Oregon 97210
Coastal Carolina Research Center North Charleston South Carolina 29405
Clinical Neuroscience Solutions Memphis Tennessee 38119
Donald J. Garcia, Jr, MD, PA Austin Texas 78737
Future Search Trials of Dallas Dallas Texas 75231
Haracec Clinical Research El Paso Texas 79902
Pillar Clinical Research Richardson Texas 75080
R and H Clinical Research Stafford Texas 77477
Grayline Research Center Wichita Falls Texas 76309
Northwest Clinical Research Center Bellevue Washington 98007
Core Clinical Research Everett Washington 98201

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT06254612, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Aug 17, 2026 · Synced Sep 10, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT06254612 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →