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Extended Access of Momelotinib in Adults With Myelofibrosis

Extended Access of Momelotinib for Subjects With Primary Myelofibrosis (PMF) or Post-polycythemia Vera or Post-essential Thrombocythemia Myelofibrosis (Post-PV/ET MF)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03441113
Enrollment
237
Registered
2018-02-22
Start date
2018-05-03
Completion date
2026-12-11
Last updated
2026-06-18

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

Conditions

Neoplasms, Post-essential Thrombocythemia Myelofibrosis (Post-ET MF), Post-polycythemia Vera Myelofibrosis (Post-PV MF), Primary Myelofibrosis, Primary Myelofibrosis (PMF)

Brief summary

The primary objective of this study is to provide extended access and assess long-term safety of momelotinib (MMB) in participants with primary myelofibrosis (PMF) or post-polycythemia vera or post-essential thrombocythemia myelofibrosis (Post-PV/ET MF) enrolled in studies GS-US-352-0101 (NCT01969838), GS-US-352-1214 (NCT02101268), GS-US-352-1154 (NCT02124746), SRA-MMB-301 who are currently receiving treatment with MMB (available as 50mg,100 mg, 150 mg and 200 mg tablets) and have not experienced progression of disease. The secondary objective is to assess overall survival (OS) and leukemia free survival (LFS) in all subjects.

Interventions

DRUGMMB

Tablet(s) administered orally once daily

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Currently enrolled in Studies GS-US-352-0101, GS-US-352-1214, GS-US-352-1154, or SRA-MMB-301 * Able to comprehend and willing to sign the informed consent form Key

Exclusion criteria

* Known hypersensitivity to MMB, its metabolites, or formulation excipients NOTE: Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frame
Number of Participants Who Had Access to, and Received the InterventionParticipants will be assessed every 12 weeks until discontinuation. Participation in this extended access study has been an average of approximately 8 months.

Countries

Australia, Austria, Belgium, Bulgaria, Canada, Denmark, France, Germany, Hungary, Israel, Italy, Netherlands, Poland, Romania, Singapore, South Korea, Spain, Taiwan, United Kingdom, United States

Contacts

STUDY_DIRECTORGSK Clinical Trials

GlaxoSmithKline

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 19, 2026