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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02200770
Other study ID # CD-IA-MEDI-551-1155
Secondary ID 2014-000253-36
Status Completed
Phase Phase 2/Phase 3
First received
Last updated
Start date April 1, 2015
Est. completion date November 6, 2020

Study information

Verified date November 2021
Source MedImmune LLC
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

To compare the efficacy of inebilizumab (MEDI-551) versus placebo in reducing the risk of an neuromyelitis optica/neuromyelitis optica- spectrum disorders (NMO/NMOSD) attack in participants with NMO/NMOSD.


Description:

Inebilizumab is a genetically engineered humanized monoclonal antibody that binds to the B cell specific surface antigen cluster of differentiation (CD19) resulting in the depletion of B cells. Inebilizumab depletes antibody-secreting plasmablasts and some plasma cells, which are generally CD19 positive and CD20 negative. The main objective of this study is to determine whether inebilizumab compare to placebo decreases the risk of an attack in participants with NMO/NMOSD. This is a multicenter, multinational, randomized, double-masked, placebo controlled study with an open-label extension period to evaluate the efficacy and safety of intravenous (IV) inebilizumab in adult participants with NMO/NMOSD. After a screening period, eligible participants will enter a randomized-controlled period (RCP) of maximum 197 days where they will be randomized in a 3:1 ratio to receive either IV inebilizumab or placebo. NMO/NMOSD attacks will be evaluated by the investigator and confirmed against the attack criteria by an independent Adjudication Committee (AC). Participants for whom the attack was confirmed by the AC will be given the option to enroll into an open label period (OLP) with inebilizumab treatment. Participants who complete the RCP without experiencing an attack will be given the option to enroll into an OLP with inebilizumab treatment. The OLP will continue for a minimum of 1 year and a maximum of 3 years after the last participant enter the OLP. All participants who discontinue from the RCP or the OLP will continue in a Safety Follow-up for a total of 12 months from last dose to evaluate the long-term safety of the investigational product.


Recruitment information / eligibility

Status Completed
Enrollment 231
Est. completion date November 6, 2020
Est. primary completion date October 26, 2018
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: 1. Men and women 18 years or older with diagnosis of NMO/NMOSD 2. Confirmation of NMO/NMOSD status: 1. AQP4-IgG sero-positive NMO/NMOSD with at least one attack requiring rescue therapy in the last year or two attacks requiring rescue therapy in the last 2 years 2. AQP4-IgG sero-negative NMO with at least one attack requiring rescue therapy in the last year or two attacks requiring rescue therapy in the last 2 years 3. Able and willing to give written informed consent and comply with the requirements of the study protocol. 4. EDSS <= 7.5 (8 in special circumstances) 5. 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. Lactating and pregnant females 2. Treatment with any investigational agent within 4 weeks of screening 3. Known history of a severe allergy or reaction to any component of the investigational product formulation or history of anaphylaxis following any biologic therapy. 4. Known active severe bacterial, viral, or other infection or any major episode of infection requiring hospitalization. 5. History of alcohol, drug, or chemical abuse, or a recent history of such abuse < 1 year prior to randomization 6. Receipt of the following at any time prior to randomization: 1. Alemtuzumab 2. Total lymphoid irradiation 3. Bone marrow transplant 4. T-cell vaccination therapy 7. Receipt of rituximab or any experimental B-cell depleting agent within 6 months prior screening and B-cells below the lower limit of normal. 8. Receipt of intravenous immunoglobulin (IVIG) within 1 month prior to randomization. 9. Receipt of any of the following within 3 months prior to randomization: 1. Natalizumab (Tysabri®). 2. Cyclosporin 3. Methotrexate 4. Mitoxantrone 5. Cyclophosphamide 6. Tocilizumab 7. Eculizumab 10. History of Hepatitis B and/or Hepatitis C (Hep B/C at screening) 11. Known history of a primary immunodeficiency (congenital or acquired) or an underlying condition such as human immunodeficiency virus (HIV) infection 12. History of malignancies, apart from squamous cell or basal cell carcinoma of the skin treated with documented success of curative therapy > 3 months prior to randomization 13. Any concomitant disease other than NMO/NMOSD that required treatment with oral or intravenous steroids at doses over 20 mg a day for over 21 days

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Inebilizumab
Participants will receive IV inebilizumab 300 mg.
Other:
Placebo
Participants will receive IV placebo matched to inebilizumab.

Locations

Country Name City State
Australia Research Site Melbourne
Bulgaria Research Site Sofia
Bulgaria Research Site Sofia
Bulgaria Research Site Sofia
Bulgaria Research Site Varna
Canada Research Site Vancouver British Columbia
Colombia Research Site Barranquilla
Colombia Research Site Bogota
Colombia Research Site Bogota
Colombia Research Site Cali
Czechia Research Site Olomouc
Czechia Research Site Praha 2
Czechia Research Site Teplice
Estonia Research Site Tallinn
Estonia Research Site Tartu
Germany Research Site Berlin
Germany Research Site Dresden
Germany Research Site Düsseldorf
Germany Research Site Leipzig
Germany Research Site Muenster
Germany Research Site Rostock
Hong Kong Research Site HongKong
Hungary Research Site Esztergom
Hungary Research Site Nyíregyháza
Hungary Research Site Szeged
Israel Research Site Jerusalem
Israel Research Site Ramat Gan
Israel Research Site Tel Aviv
Japan Research Site Aomori-shi
Japan Research Site Bunkyo-ku
Japan Research Site Kyoto-shi
Japan Research Site Ota-ku
Japan Research Site Sendai-shi
Japan Research Site Tsukuba
Korea, Republic of Research Site Goyang
Korea, Republic of Research Site Jongno-gu
Korea, Republic of Research Site Seoul
Korea, Republic of Research Site Seoul
Mexico Research Site Ciudad De Mexico
Mexico Research Site Mexico City
Mexico Research Site Monterrey
Mexico Research Site San Luis Potosi
Moldova, Republic of Research Site Chisinau
New Zealand Research Site Auckland
Peru Research Site Bellavista
Peru Research Site Lima
Poland Research Site Katowice
Poland Research Site Krakow
Poland Research Site Lódz
Poland Research Site Lublin
Poland Research Site Olsztyn
Poland Research Site Warszawa
Poland Research Site Warszawa
Russian Federation Research Site Belgorod
Russian Federation Research Site Kazan
Russian Federation Research Site Khabarovsk
Russian Federation Research Site Krasnoyarsk
Russian Federation Research Site Moscow
Russian Federation Research Site Moscow
Russian Federation Research Site Nizhniy Novgorod
Russian Federation Research Site Novosibirsk
Russian Federation Research Site Omsk
Russian Federation Research Site Saint-Petersburg
Russian Federation Research Site Ufa
Serbia Research Site Belgrade
South Africa Research Site Cape Town
South Africa Research Site Cape Town
Spain Research Site Madrid
Taiwan Research Site Changhua City
Taiwan Research Site Hualien City
Taiwan Research Site Tainan City
Thailand Research Site Bangkok
Thailand Research Site Muang
Thailand Research Site Muang
Turkey Research Site Istanbul
Turkey Research Site Istanbul
Turkey Research Site Istanbul
Turkey Research Site Izmir
Turkey Research Site Samsun
United States Research Site Aurora Colorado
United States Research Site Baltimore Maryland
United States Research Site Birmingham Alabama
United States Research Site Chicago Illinois
United States Research Site Cincinnati Ohio
United States Research Site Cleveland Ohio
United States Research Site Dallas Texas
United States Research Site Detroit Michigan
United States Research Site Houston Texas
United States Research Site Kansas City Kansas
United States Research Site Maitland Florida
United States Research Site Mansfield Ohio
United States Research Site New Haven Connecticut
United States Research Site Raleigh North Carolina
United States Research Site Richmond Virginia
United States Research Site Rochester Minnesota
United States Research Site Sacramento California
United States Research Site Saint Louis Missouri
United States Research Site San Francisco California

Sponsors (1)

Lead Sponsor Collaborator
MedImmune LLC

Countries where clinical trial is conducted

United States,  Australia,  Bulgaria,  Canada,  Colombia,  Czechia,  Estonia,  Germany,  Hong Kong,  Hungary,  Israel,  Japan,  Korea, Republic of,  Mexico,  Moldova, Republic of,  New Zealand,  Peru,  Poland,  Russian Federation,  Serbia,  South Africa,  Spain,  Taiwan,  Thailand,  Turkey, 

Outcome

Type Measure Description Time frame Safety issue
Primary Time to Adjudication Committee (AC)-Determined Neuromyelitis Optica Spectrum Disorder (NMOSD) Attack During RCP The NMOSD attack is defined as the presence of new or worsening symptom(s) related to NMOSD that meet at least one of the 18 protocol-defined attack criteria. These criteria were developed in conjunction with a panel of disease experts and with Food and Drug Administration input, and were intended to be clinically meaningful, objective, quantifiable, and able to be used worldwide. Only attacks positively adjudicated by the AC were used for the primary analysis. Day 1 (Baseline) through Day 197
Secondary Percentage of Participants With Worsening in Expanded Disability Severity Scale (EDSS) Score From Baseline to the Last Visit of RCP EDSS and its associated functional system (FS) score provide a system for quantifying disability and monitoring changes in the level of disability over time. EDSS is a scale for assessing neurologic impairment in multiple sclerosis (MS). It consists of 7 FS (visual FS, brainstem FS, pyramidal FS, cerebellar FS, sensory FS, bowel and bladder FS, and cerebral FS) which are used to derive EDSS score ranging from 0 (normal neurological exam) to 10 (death from MS). A negative change from baseline indicates improvement. A participant was considered to have a worsening in overall EDSS score of at least 2 if baseline EDSS score was 0, or at least 1 point if baseline EDSS score is 1 to 5, or at least 0.5 point if baseline EDSS score is 5.5 or more. Day 1 (Baseline) through Day 197
Secondary Change From Baseline in Low-Contrast Visual Acuity Binocular Score to the Last Visit of RCP Low-contrast visual acuity test is used to determine the number of letters that can be read on a standardized low-contrast Landolt C Broken Rings Chart held at a distance of 3 meters. Binocular score is the number of letters read correctly on an eye chart using both eyes simultaneously. The total score ranges from 0-70. Higher score indicates better vision. Day 1 (Baseline) through Day 197
Secondary Cumulative Number of Active Magnetic Resonance Imaging (MRI) Lesions During RCP The number of new gadolinium-enhancing lesions and new or enlarging T2 lesions were measured by MRI of the brain, optic nerve, and spinal cord. From Screening (Day -28) to Day 197
Secondary Number of NMOSD-related In-patient Hospitalizations During RCP Participants with relapsing NMOSD have recurrent attacks that can be severe and result in blindness, paralysis, and even death and consequently, such attacks frequently result in in-patient hospitalizations. In-patient hospitalization is defined as a stay in hospital that goes beyond midnight of the first day of admission. Day 1 (Baseline) through Day 197
Secondary Annualized AC-determined NMOSD Attack Rate During Any Exposure to Inebilizumab Annualized attack rate is defined as total number of AC-determined attacks divided by total person years. Total person-years is calculated as the sum of the person-years for individual participant. Person-year for individual participant = (Date of last day before safety follow-up period - first inebilizumab dose date +1)/365.25. Annualized AC-determined NMOSD attack rate during any exposure to inebilizumab (in RCP and OLP) is reported. For participants randomized to inebilizumab: Day 1 of RCP through end of OLP (approximately 3.5 years); and for participants randomized to placebo: Day 1 of OLP through the end of OLP (approximately 3 years)
Secondary Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs) During RCP An adverse event (AE) is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Serious adverse event is any AE that resulted in death, life threatening, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, is a congenital anomaly/birth defect in offspring of a study participant, is an important medical event that may jeopardize the participant or may require medical intervention. TEAEs are defined as events present at baseline that worsened in intensity after administration of study drug or events absent at baseline that emerged after administration of study drug during the RCP. Day 1 (Baseline) through Day 197
Secondary Number of Participants With TEAEs and TESAEs During OLP An AE is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Serious adverse event is any AE that resulted in death, life threatening, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, is a congenital anomaly/birth defect in offspring of a study participant, is an important medical event that may jeopardize the participant or may require medical intervention. TEAEs are defined as events present at baseline that worsened in intensity after administration of study drug or events absent at baseline that emerged after administration of study drug during the OLP. Day 198 through end of OLP period (maximum of 3 years after the last participant entered, until regulatory approval or study discontinuation, whichever occurs first) (approximately 3 years)
Secondary Number of Participants With TEAEs and TESAEs During SFP (Open-label Population) An AE is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Serious adverse event is any AE that resulted in death, life threatening, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, is a congenital anomaly/birth defect in offspring of a study participant, is an important medical event that may jeopardize the participant or may require medical intervention. TEAEs are defined as events present at baseline that worsened in intensity after administration of study drug or events absent at baseline that emerged after administration of study drug during the OLP. Participant who prematurely discontinued from the RCP or OLP entered in the SFP. Every 3 months for a total of 1 year after the last dose of study drug (approximately 3 years)
Secondary Number of Participants With TEAEs and TESAEs During SFP (Non-OLP Population) An AE is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Serious adverse event is any AE that resulted in death, life threatening, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, is a congenital anomaly/birth defect in offspring of a study participant, is an important medical event that may jeopardize the participant or may require medical intervention. TEAEs are defined as events present at baseline that worsened in intensity after administration of study drug or events absent at baseline that emerged after administration of study drug during the OLP. The SFP started when a participant prematurely discontinues from the RCP or OLP. Every 3 months for a total of 1 year after the last dose of study drug (approximately 3 years)
Secondary Number of Participants With at Least a 2-Grade Shift From Baseline to Worst Toxicity Grade in Hematology and Chemistry During RCP Number of participants with at least a 2-grade shift from baseline to worst toxicity grade in hematology and chemistry during RCP is reported. Day 1 (Baseline) through Day 197
Secondary Number of Participants With at Least a 2-Grade Shift From Baseline to Worst Toxicity Grade in Hematology and Chemistry During OLP Number of participants with at least a 2-grade shift from baseline to worst toxicity grade in hematology and chemistry during OLP is reported. Day 198 through end of OLP (maximum of 3 years after the last participant enters, until regulatory approval or study discontinuation, whichever occurs first) (approximately 3 years)
Secondary Time to Maximum Serum Concentration (Tmax) of Inebilizumab (During RCP) Time to maximum serum concentration of inebilizumab during RCP is reported. Dose 1 (Pre and post dose on Day 1 and Day 8); and Dose 2 (pre and post dose on Day 15; and Days 29, 57, 85, 113, 155, and 197)
Secondary Maximum Observed Serum Concentration (Cmax) of Inebilizumab (During RCP) Maximum observed serum concentration of inebilizumab during RCP is reported. Dose 1 (Pre and post dose on Day 1 and Day 8); and Dose 2 (pre and post dose on Day 15; and Days 29, 57, 85, 113, 155, and 197)
Secondary Area Under the Serum Concentration Time Curve of the Dosing Interval (AUC0-14d) of Inebilizumab (During RCP) Area under the serum concentration time curve of the dosing interval (AUC0-14d) of inebilizumab during RCP is reported. Dose 1 (Pre and post dose on Day 1 and Day 8); and Dose 2 (pre and post dose on Day 15; and Days 29, 57, 85, 113, 155, and 197)
Secondary Number of Participants With Positive Anti-Drug Antibodies (ADA) Titer to Inebilizumab (During RCP) Number of participants with positive ADA titer to inebilizumab during RCP is reported. Pre and post dose on Day 1; and on Days 29, 85, and 197
Secondary Number of Participants With Positive Anti-Drug Antibodies (ADA) Titer to Inebilizumab (During OLP) Number of participants with positive ADA titer to inebilizumab in OLP is reported. Pre and post dose on Day 1; and on Days 92, 183, 274, and then every 6 months (maximum of 3 years after the last participant enters, until regulatory approval or study discontinuation, whichever occurs first) (approximately 3 years)

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