Efficacy and Safety of Ropeginterferon Alfa-2b for Pre-fibrotic Primary Myelofibrosis and DIPSS Low/Intermediate-1 Risk Myelofibrosis

  • STATUS
    Recruiting
  • End date
    Dec 31, 2025
  • participants needed
    50
  • sponsor
    The University of Hong Kong
Updated on 28 October 2022

Summary

This is a multi-centre phase 2 open-label prospective study designed to assess the efficacy and safety of ropeg patients with pre-fibrotic primary myelofibrosis or DIPSS low/intermediate-1 risk myelofibrosis after 24 months of treatment.

Description

This is a multi-centre phase 2 open-label prospective study designed to assess the efficacy and safety of ropeg patients with pre-fibrotic primary myelofibrosis or DIPSS low/intermediate-1 risk myelofibrosis after 24 months of treatment. . In patients achieving any molecular response at 24 months, treatment with ropeg will be continued until disease progression.

After obtaining a written informed consent, screening evaluations will be performed. Eligibility will be determined based on the inclusion and exclusion criteria in section 6 of this protocol. Subject visits will be scheduled regularly after recruitment for efficacy evaluations and safety assessments. A safety follow-up will be scheduled 28 days after end-of-treatment visit. Efficacy evaluations, safety assessments and sample collection will be performed according to the schedule laid in section 2 in this protocol.

Efficacy will be evaluated using laboratory assessment of haematological parameters, physical examination for liver and spleen size assessment, quantitative assessment of JAK2V617F, CALR, MPL and other driver mutations, bone marrow examination, and symptom burden assessment by MPN-SAF-TSS. Quantitative assessment of JAK2V617F, CALR, MPL and other driver mutations will be performed using real-time quantitative PCR or ddPCR at the laboratory at the Department of Medicine, the University of Hong Kong, National Taiwan University Hospital and Chang Gung Memorial Hospital Chiayi.

Safety evaluations will be performed using symptoms, physical examination, laboratory studies, Chest X-rays, ophthalmic assessment, ECOG performance status and CTCAE version 5.0.

Details
Condition Primary Myelofibrosis, Prefibrotic Stage, Myelofibrosis
Treatment ropeginterferon alfa-2b
Clinical Study IdentifierNCT04988815
SponsorThe University of Hong Kong
Last Modified on28 October 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Adults ≥ 18 years (or based on the legal age of the territory)
Diagnosed of primary myelofibrosis, post-PV and post-ET myelofibrosis according to the WHO 2016 classification
Bone marrow reticulin fibrosis grade of 0-1 or low/intermediate-1 risk according to DIPSS
Compensated liver function defined as: bilirubin ≤ 1.5 x upper limit normal (ULN); alanine aminotransferase (ALT) ≤ 2 x ULNor aspartate aminotransferase (AST) ≤ 2 x ULN; prothrombin time versus control <3 seconds at screening
Glomerular filtration rate ≥ 50 mL/min (by MDRD equation or Cockcroft-Gault formula)
Men and women of childbearing potential must agree to perform contraception until 28 days after the last dose of ropeg
Women must avoid breast-feeding during the study
Able to give a written informed consent and fully comply to the requirements of the study

Exclusion Criteria

Prior or current use of IFNα preparations for PMF or secondary MF. Prior use of IFNα for antecedent PV or ET is allowed provided that the time from the last dose of IFNα to recruitment is > 4 weeks
Patients currently on other investigational therapy (ies)
Contraindications or hypersensitivity to IFNα preparations
History of organ transplantation
Pregnant or lactating women
Documented autoimmune disease at screening
Infection with human immunodeficiency virus (HIV)
Active and uncontrolled infections with hepatitis B virus (HBV) and hepatitis C virus (HCV). Please note that patients on antiviral therapy with undetectable HBV DNA and HCV RNA may be recruited
Evidence of severe retinopathy including but not limited to macular degeneration, diabetic retinopathy and hypertensive retinopathy
History of clinically significant neuropsychiatric conditions including but not limited to depression and epilepsy
Clinically significant neuropsychiatric conditions including but not limited to depression and epilepsy
Presence of other active malignancies within three years prior to the time of recruitment. History of malignant disease, including solid tumours and haematological malignancies (except basal cell and squamous cell carcinomas of the skin and carcinoma in situ of the cervix that have been completely excised and are considered cured) within the last 3 years
Evidence of alcohol or drug abuse within 6 months
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