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Terminated Phase 1Phase 2 Interventional

Phase 1/2 Study to Evaluate the Safety and Efficacy of ATA188 in Subjects With Progressive Multiple Sclerosis

ClinicalTrials.gov ID: NCT03283826

Public ClinicalTrials.gov record NCT03283826. 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 Jul 22, 2026, 2:20 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 Phase 1/2, Two-part, Open-label Dose-escalation and Double-blind, Placebo-controlled Dose-expansion Study With an Open-label Extension to Evaluate the Safety and Efficacy of ATA188 in Subjects With Progressive Multiple Sclerosis

Study identification

NCT ID
NCT03283826
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 1, Phase 2
Lead sponsor
Atara Biotherapeutics
Industry
Enrollment
134 participants

Conditions and interventions

Interventions

  • ATA188 Biological
  • Placebo Drug

Biological · Drug

Eligibility (public fields only)

Age range
18 Years to 60 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
Oct 18, 2017
Primary completion
Nov 8, 2023
Completion
Jan 16, 2024
Last update posted
Feb 22, 2024

2017 – 2024

United States locations

U.S. sites
25
U.S. states
17
U.S. cities
25
Facility City State ZIP Site status
University of California, San Diego La Jolla California 92037
Kaiser Permanente MS Clinic Los Angeles Los Angeles California 90027
Stanford University Palo Alto California 94304
University of California San Francisco San Francisco California 94158
University of Colorado Aurora Colorado 80045
Advanced Neurology Fort Collins Colorado 80528
Neurology Associates, PA-Maitland Maitland Florida 32751
University of South Florida, Morsani College of Medicine Tampa Florida 33612
Fort Wayne Neurological Center Fort Wayne Indiana 46825
University of Kansas Medical Center KUMC - Multiple Sclerosis MS Center Kansas City Kansas 66160
Ochsner Clinic Foundation New Orleans Louisiana 70121
Dragonfly Research Wellesley Massachusetts 02481
Washington University in St. Louis St Louis Missouri 63110
Dent Neurologic Institute Amherst New York 14226
Columbia University Medical Center-The Neurological Institute of New York New York New York 10032
University of Rochester Medical Center - URMC Rochester New York 14642
PMG Research of Piedmont Healthcare Mooresville North Carolina 28117
University of Pennsylvania Philadelphia Pennsylvania 19104-5127
Premier Neurology P.C. Greer South Carolina 29650
Advanced Neurosciences Institute ANI - Franklin Franklin Tennessee 37064
Vanderbilt Comprehensive Multiple Sclerosis Center Nashville Tennessee 37215
The University of Texas Health Science Center at Houston Houston Texas 77030
MS Center of Greater Washington Vienna Virginia 22182
Inland Northwest Research LLC Spokane Washington 99202
Medical College of Wisconsin Milwaukee Wisconsin 53226

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

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 6 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03283826, 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 Feb 22, 2024 · Synced Jul 22, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03283826 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →