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Study to test the safety, tolerability and efficacy of UCB7665 in subjects with moderate to severe myasthenia gravis.

A Multicenter, Randomized, Investigator- and Subject-Blind, Placebo-Controlled, Treatment Sequence Study Evaluating the Safety, Tolerability, and Efficacy of UCB7665 in Subjects with Moderate to Severe Myasthenia Gravis.

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2016-002698-36-DE
Enrollment
42
Registered
2016-11-28
Start date
2017-02-09
Completion date
Unknown
Last updated
2018-06-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Moderate to severe myasthenia gravis MedDRA version: 20.0 Level: PT Classification code 10028417 Term: Myasthenia gravis System Organ Class: 10029205 - Nervous system disorders

Interventions

Product Name: UCB7665 Product Code: UCB7665 Pharmaceutical Form: Powder for solution for infusion INN or Proposed INN: rozanolixizumab CAS Number: 1584645-37-3 Current Sponsor code: UCB7665 Other desc

Sponsors

UCB Biopharma SPRL
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Subject has a well-documented diagnosis of myasthenia gravis (MG) at Visit 1 (Screening), based on subject history and supported by previous evaluations - Subject would currently be considered for treatment with immunological therapy (immunoglobulin/plasma exchange (IVIG/PLEX)) by the investigator - Subject has well-documented record of autoantibodies against antiacetylcholine receptor (Anti-AChR) or anti-muscle specific kinase (AntiMuSK) prior to Screening - Female subjects must either be: postmenopausal, permanently sterilized or if childbearing potential applicable willing to use a highly effective method of birth control - Male subjects must be willing to use a method of contraception Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 37 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 5

Exclusion criteria

Exclusion criteria: - Subject has previously received treatment in this study or subject has previously been exposed to UCB7665 - Subject has participated in another study of an investigational medicinal product (IMP;or a medical device) within the previous 30 days of Screening or is currently participating in another study of an investigational medicinal product (IMP; or a medical device) - Subject has a known hypersensitivity to any components of the IMP - Subject has a history of hyperprolinemia, since L-proline is a constituent of the UCB7665 IMP - Subjects with Myasthenia Gravis (MG) only affecting the ocular muscles - Subjects with severe weakness affecting oropharyngeal or respiratory muscles, or who have myasthenic crisis at Screening or impending crisis - Subject has quantitative myasthenia gravis (QMG) score of <11 at Baseline - Subject has a serum total immunoglobulin G (IgG) level <= 6g/L at Screening - Absolute neutrophil count <1500 cells/mm3 - Subject has any medical condition (acute or chronic illness) or psychiatric condition that, in the opinion of the investigator, could jeopardize or would compromise the subject’s ability to participate in this study - Subject has any laboratory abnormality that, in the opinion of the investigator, is clinically significant, has not resolved at randomization, and could jeopardize or would compromise the subject’s ability to participate in this study - Subject has received a live vaccination within 8 weeks prior to the Baseline Visit; or intends to have a live vaccination during the course of the study or within 7 weeks following the final dose of IMP - Subject has received any experimental biological agent within or outside of a clinical study in the past 3 months or within 5 half-lives prior to Baseline (whichever is longer)

Design outcomes

Primary

MeasureTime frame
Main Objective: Evaluate the clinical efficacy of UCB7665 as a chronic-intermittent treatment in subjects with generalized myasthenia gravis (MG) who are classified as moderate to severe ;Secondary Objective: - Gather data for future study planning, whether for chronic-intermittent treatment or a longer therapy option by evaluating the general concept that UCB7665 has a clinical effect in patients with generalized myasthenia gravis (MG) - Evaluate the safety and tolerability of UCB7665 administered by subcutaneous (sc) infusion in subjects with (MG) - Assess the effect of UCB7665 as measured by total immunoglobulin G (IgG) concentrations in serum ;Primary end point(s): Change from Baseline in Quantitative Myasthenia Gravis (QMG) score to Visit 9 ;Timepoint(s) of evaluation of this end point: Baseline and Visit 9 (Day 29)

Secondary

MeasureTime frame
Secondary end point(s): Change from Baseline in Myasthenia Gravis-Composite score to Visit 9 Change from Baseline in Myasthenia Gravis-Activities of Daily Living (MGADL) score to Visit 9 ;Timepoint(s) of evaluation of this end point: Baseline and Visit 9 (Day 29)

Countries

Belgium, Canada, Czech Republic, Denmark, Germany, Spain, United States

Contacts

Public ContactClin Trial Reg & Results Disclosure

UCB Biosciences GmbH

clinicaltrials@ucb.com

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026