NCT05395507

Brief Summary

Objectives: To compare the efficacy and safety in Adult patients (≥18 years) diagnosed as essential thrombocythemia treated with the Pegylated Interferon Alfa-2b vs. Interferon Alfa. Study Design: A prospective, open-label, multicenter, randomized controlled clinical trial.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
194

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Jun 2022

Typical duration for phase_2

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 10, 2022

Completed
17 days until next milestone

First Posted

Study publicly available on registry

May 27, 2022

Completed
5 days until next milestone

Study Start

First participant enrolled

June 1, 2022

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2025

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2025

Completed
Last Updated

July 3, 2024

Status Verified

November 1, 2023

Enrollment Period

2.8 years

First QC Date

May 10, 2022

Last Update Submit

July 1, 2024

Conditions

Keywords

Essential ThrombocytopeniaInterferon AlfaPegylated Interferon Alfa-2bEfficacySafety

Outcome Measures

Primary Outcomes (1)

  • Complete hematological remission (CHR) rates

    The CHR rates defined as European Leukemia Net will be compared between the two groups.

    From the start of study treatment (Week 0) up to the end of Week 52

Secondary Outcomes (16)

  • CHR rates at week 24 and 36

    From the start of study treatment (Week 0) up to the end of Week 24 and Week 36, respectively

  • Time to CHR

    From the start of study treatment (Week 0) up to the end of Week 52.

  • The proportion of patients crossed to the contralateral group

    From the start of study treatment (Week 0) up to the end of Week 52.

  • The CHR rates after crossover

    From the start of study treatment (Week 0) up to the end of Week 52.

  • Impact of therapy on driver mutations

    From the start of study treatment (Week 0) up to the end of Week 52.

  • +11 more secondary outcomes

Other Outcomes (1)

  • Changes of immune cell subgroups

    From the start of study treatment (Week 0) up to the end of Week 52.

Study Arms (2)

Recombinant Interferon Alpha

ACTIVE COMPARATOR

Recombinant Interferon Alpha, with an initial dose of 300 wu three times a week. Other interferons that have been listed can be used if Recombinant Interferon Alpha (300 wu) is not available.

Drug: Recombinant Interferon Alpha

Pegylated Interferon Alfa-2b

EXPERIMENTAL

Pegylated Interferon Alfa-2b, with an initial dose of 135 ug at week 0 , and then 180 ug once a week from week 1 to week 52.

Drug: Pegylated interferon alfa-2b

Interventions

Recombinant Interferon Alpha, with an initial dose of 300 wu three times a week. Other interferons that have been listed can be used if Recombinant Interferon Alpha (300 wu) is not available.

Recombinant Interferon Alpha

Pegylated Interferon Alfa-2b, with an initial dose of 135 ug at week 0 , and then 180 ug once a week from week 1 to week 52.

Pegylated Interferon Alfa-2b

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • ≥18 years old.
  • Male or Female.
  • Diagnosis of essential thrombocythemia according to the 2016 World Health Organization criteria.
  • Those who have not use interferon within 4 weeks before the first medication.
  • Patients with indications for cytoreductive therapy.
  • Men and women with reproductive potential, as well as all women with menopause less than 2 years, must agree to use acceptable contraceptive methods until 28 days after the last dose of study drug, and women must agree not to breastfeed during the study period.
  • Voluntary written informed consent.

You may not qualify if:

  • Resistance, or intolerance, or any contraindications to interferon.
  • Patients with active thrombosis or active bleeding.
  • Neutrophil count \< 1.0x10\^9/L.
  • Hemoglobin \< 11g/dL for male, or \< 10g/dL for female.
  • Poor control of thyroid dysfunction.
  • Patients with a prior malignancy within the last 3 years.
  • Patients with severe cardiac or pulmonary dysfunction.
  • Severe renal damage (creatinine clearance \< 30 ml / min).
  • Severe liver dysfunction (ALT or AST \> 2.5×ULN).
  • Patients with hepatitis B virus, hepatitis C virus replication or HIV infection.
  • Patients with a history of drug / alcohol abuse (within 2 years before the study).
  • Patients that have participated in other experimental researches within one month before enrollment.
  • History of psychiatric disorder.
  • Any other circumstances that the investigator considers that the patient is not suitable to participate in the trial.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Institute of Hematology & Blood Diseases Hospital

Tianjin, Tianjin Municipality, 300020, China

RECRUITING

MeSH Terms

Interventions

peginterferon alfa-2b

Study Officials

  • Lei Zhang, MD

    Institute of Hematology & Blood Diseases Hospital, China

    PRINCIPAL INVESTIGATOR
  • Rongfeng Fu

    Institute of Hematology & Blood Diseases Hospital, China

    PRINCIPAL INVESTIGATOR
  • Rong Fu

    Tianjin Medical University General Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 10, 2022

First Posted

May 27, 2022

Study Start

June 1, 2022

Primary Completion

March 31, 2025

Study Completion

June 30, 2025

Last Updated

July 3, 2024

Record last verified: 2023-11

Locations