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Trial record 2 of 6 for:    "Neuromyelitis Optica" | "Antirheumatic Agents"

Tocilizumab vs Azathioprine in Neuromyelitis Optica Spectrum Disorders (TANGO)

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ClinicalTrials.gov Identifier: NCT03350633
Recruitment Status : Active, not recruiting
First Posted : November 22, 2017
Last Update Posted : October 16, 2018
Sponsor:
Information provided by (Responsible Party):
Fu-Dong Shi, Tianjin Medical University General Hospital

Tracking Information
First Submitted Date  ICMJE November 10, 2017
First Posted Date  ICMJE November 22, 2017
Last Update Posted Date October 16, 2018
Actual Study Start Date  ICMJE October 15, 2017
Estimated Primary Completion Date December 2018   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: November 17, 2017)
Time to first relapse [ Time Frame: From baseline to one year after ]
An acute attack was defined as a new neurological worsening lasting for at least 24 hours and occurring more than 30 days after the previous attack.
Original Primary Outcome Measures  ICMJE Same as current
Change History Complete list of historical versions of study NCT03350633 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures  ICMJE
 (submitted: November 17, 2017)
  • Proportion of patients who experience relapse-free [ Time Frame: From baseline to 60 weeks ]
    To record whether the patients had no relapses in the follow-ups
  • Worsening in EDSS [ Time Frame: Worsening from baseline in EDSS to 60 weeks ]
    The Expanded Disability Status Scale (EDSS) is a rating system that is frequently used for classifying and standardizing the severity and progression. EDSS ranges from 0 to 10.
  • Time to Onset of Confirmed Disability Progression (CDP) for at Least 12 Weeks [ Time Frame: From baseline to 60 weeks ]
    Disability progression was defined as an increase in the Expanded Disability Status Scale (EDSS) score of: A) >=1.0 point from the baseline EDSS score when the baseline score was less than or equal to (<=) 5.5 B) >=0.5 point from the baseline EDSS score when the baseline score was >5.5 The EDSS scale ranges from 0 (normal neurological exam) to 10 (death due to multiple sclerosis). Disability progression was considered confirmed when the increase in the EDSS was confirmed at a regularly scheduled visit at least 12 weeks after the initial documentation of neurological worsening. Participants who had initial disability progression with no confirmatory EDSS assessment and who were on treatment at time of clinical cut-off date were censored at the date of their last EDSS assessment.
  • Percentage of Participants With Confirmed Disability Improvement (CDI) for at Least 12 Weeks [ Time Frame: From baseline to 60 weeks ]
    Disability improvement was assessed only for the subgroup of participants with a baseline EDSS score of >= 2.0. It was defined as a reduction in EDSS score of: A) >=1.0 from the baseline EDSS score when the baseline score was >=2 and <=5.5 B) >= 0.5 when the baseline EDSS score > 5.5. The EDSS scale ranges from 0 (normal neurological exam) to 10 (death).
  • Time to Onset of Confirmed Disability Progression (CDP) for at Least 24 Weeks [ Time Frame: From baseline to 60 weeks ]
    Disability progression was defined as an increase in the Expanded Disability Status Scale (EDSS) score of: A) >=1.0 point from the baseline EDSS score when the baseline score was less than or equal to (<=) 5.5 B) >=0.5 point from the baseline EDSS score when the baseline score was >5.5 The EDSS scale ranges from 0 (normal neurological exam) to 10 (death). Disability progression was considered confirmed when the increase in the EDSS was confirmed at a regularly scheduled visit at least 24 weeks after the initial documentation of neurological worsening. Participants who had initial disability progression with no confirmatory EDSS assessment and who were on treatment at time of clinical cut-off date were censored at the date of their last EDSS assessment.
  • Percentage of Participants With Confirmed Disability Improvement (CDI) for at Least 24 Weeks [ Time Frame: From baseline to 60 weeks ]
    Disability improvement was assessed only for the subgroup of participants with a baseline EDSS score of >= 2.0. It was defined as a reduction in EDSS score of: A) >=1.0 from the baseline EDSS score when the baseline score was >=2 and <=5.5 B) >= 0.5 when the baseline EDSS score > 5.5. The EDSS scale ranges from 0 (normal neurological exam) to 10 (death).
  • Percentage Change in Spectral-domain Optical Coherence Tomography (SD-OCT) Average Retinal Nerve Fiber Layer (RNFL) Thickness at Week 60 [ Time Frame: From baseline to 60 weeks ]
    Adjusted mean percentage change in thickness of the RNFL at Week 60 for the affected eye from the baseline as determined by SD-OCT.
  • Percentage change in SD-OCT Average Retinal Ganglion Cell Layer/Inner Plexiform Retinal Layer (RGCL/IPL) at Week 60 [ Time Frame: From baseline to 60 weeks ]
    Adjusted mean change in thicknesses of the RGCL/IPL at Week 60 for the affected eye from the baseline as determined by segmentation of SD-OCT.
  • Change in Low-contrast Letter Acuity (LCLA) at Week 60 [ Time Frame: From baseline to 60 weeks ]
    Adjusted mean change in LCLA at Week 60 from baseline as determined by 2.5% low contrast Sloan letter charts, adjusted for the baseline LCLA value.
  • Change in High-contrast Letter Acuity (HCLA) at Week 60 [ Time Frame: From baseline to 60 weeks ]
    Adjusted mean change in HCLA at Week 60 from baseline as determined by 100% high contrast Sloan letter charts, adjusted for the baseline HCLA value.
  • Number of New, and/or Enlarging T2 Hyperintense Lesions as Detected by Brain Magnetic Resonance Imaging (MRI) [ Time Frame: From baseline to 60 weeks ]
    The total number of new and/or enlarging T2 lesions for all participants in the treatment group was calculated as the sum of the individual number of lesions at Weeks 12, 36, and 60
  • Overall safety and tolerability of tocilizumab or azathioprine [ Time Frame: From baseline to 60 weeks ]
    Adverse events related to tocilizumab or azathioprine are recorded.
  • Number of Participants with Adverse Events as a Measure of Safety and Tolerability [ Time Frame: From baseline to 60 weeks ]
    Treatment-emergent adverse events, treatment-emergent serious adverse events (TESAEs), including laboratory measurements as well as their changes or shift from baseline over time
  • Counts of peripheral blood B cell subsets [ Time Frame: From baseline to 60 weeks ]
    Compare peripheral blood plasma cells before and one year after initial intervention
  • Determination of serum immunoglobulins [ Time Frame: From baseline to 60 weeks ]
    Compare immunoglobulins before and one year after initial intervention
  • Determination of serum AQP4 antibodies [ Time Frame: From baseline to 60 weeks ]
    Compare serum AQP4-ab titers before and one year after initial intervention
  • Determination of serum cytokines [ Time Frame: From baseline to 60 weeks ]
    Compare serum cytokines before and one year after initial intervention
Original Secondary Outcome Measures  ICMJE Same as current
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Tocilizumab vs Azathioprine in Neuromyelitis Optica Spectrum Disorders
Official Title  ICMJE Safety and Efficacy of Tocilizumab Versus Azathioprine in Neuromyelitis Optica Spectrum Disorders: a Randomized, Controlled, Open-label, Phase 2 Trial
Brief Summary

In neuromyelitis optica spectrum disorder (NMOSD),interleukin-6 (IL-6) may play an important role in facilitating plasma cells to produce pathological aquaporin 4 (AQP4) autoantibody. Inhibition of IL-6 signaling pathway by Tocilizumab (ACTEMRA®), a humanized monoclonal antibody may have shown beneficial clinical effects in a few patients with NMOSD.

Larger scale clincial trials may be needed to observe its efficacy and safety. Here, by choosing azathioprine, one of the most frequently used medication in case of relapses, the investigators compare the safety and efficacy of tocilizumab in preventing NMOSD attacks.

Detailed Description

The investigators primarily aim to observe the time to first relapse from initiation of tocilizumab or azathioprine treatment. The proportion of participants who experience relapse-free in one year follow-up will be compared.

The secondary outcomes are to determine: The safety profile of tocilizumab and azathioprine in participants with NMO and whether tocilizumab improves visual function, Expanded Disability Status Scale (EDSS), et al.

Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 2
Phase 3
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Condition  ICMJE
  • Neuromyelitis Optica Spectrum Disorders
  • Neuromyelitis Optica
Intervention  ICMJE
  • Drug: Tocilizumab Injection
    Tocilizumab Injection will be intravenously administered with a dose of 8 mg/kg every 4 weeks.
    Other Name: ACTEMRA®
  • Drug: Azathioprine
    Azathioprine will be orally given at a dose of 2-3 mg/kg/d
    Other Name: Imuran
Study Arms  ICMJE
  • Experimental: Tocilizumab
    Tocilizumab Injection (ACTEMRA®) , a IL-6 receptor blockade
    Intervention: Drug: Tocilizumab Injection
  • Active Comparator: Azathioprine
    Imuran
    Intervention: Drug: Azathioprine
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Active, not recruiting
Actual Enrollment  ICMJE
 (submitted: November 17, 2017)
118
Original Estimated Enrollment  ICMJE Same as current
Estimated Study Completion Date  ICMJE June 2019
Estimated Primary Completion Date December 2018   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  1. Male or female patients ≥ 18 years old
  2. Diagnosis of NMO or NMO spectrum disorder
  3. Clinical evidence of at least 2 relapses in last 12 months or 3 relapses in the last 24 months
  4. Able and willing to give written informed consent and comply with the requirements of the study protocol.
  5. EDSS <= 7.5 (8 in special circumstances)
  6. Men and women of reproductive potential must agree to use a highly effective method of birth control from screening to 6 months after final dose of the investigational product.

Exclusion Criteria:

  1. Current evidence or known history of clinically significant infection (Herpes simplex virus, varicella-zoster virus, cytomegalovirus, Epstein-Barr virus,human immunodeficiency virus, Hepatitis viruses, Syphilis, etc)
  2. Pregnant, breastfeeding, or child-bearing potential during the course of the study
  3. Patients will not participate in any other clinical therapeutic study or will not have participated in any other experimental treatment study within 30 days of screening
  4. Participation in another interventional trial within the last 3 months
  5. Heart or kidney insufficiency
  6. Tumor disease currently or within last 5 years
  7. Clinically relevant liver, kidney or bone marrow function disorder
  8. Receipt of rituximab or any experimental B-cell depleting agent within 6 months prior screening and B-cells below the lower limit of normal.
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE China
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT03350633
Other Study ID Numbers  ICMJE IRB2017-YX-009
Has Data Monitoring Committee Yes
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
IPD Sharing Statement  ICMJE
Plan to Share IPD: No
Responsible Party Fu-Dong Shi, Tianjin Medical University General Hospital
Study Sponsor  ICMJE Tianjin Medical University General Hospital
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Principal Investigator: Fu-Dong Shi, MD,PhD Tianjin Medical University General Hospital
PRS Account Tianjin Medical University General Hospital
Verification Date October 2018

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP