Brief Summary

This multicenter longitudinal observational study focuses on Italian patients with Polycythemia Vera (PV) who were enrolled in the Low-PV RCT and continued receiving Ropeginterferon alfa-2b until the study's conclusion on March 31, 2023. It includes patients who were responders to Ropeginterferon alfa-2b after two years in the phase II randomized trial "LOW-PV." Data will be collected retrospectively every 6 months from March 31, 2023 to November 30, 2024 and prospectively from December 1, 2024 to March 31, 2026.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
36

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Nov 2024

Geographic Reach
1 country

13 active sites

Status
recruiting

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

Study Start

First participant enrolled

November 30, 2024

Completed
17 days until next milestone

First Submitted

Initial submission to the registry

December 17, 2024

Completed
14 days until next milestone

First Posted

Study publicly available on registry

December 31, 2024

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 30, 2026

Completed
1 day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2026

Completed
Last Updated

December 26, 2025

Status Verified

December 1, 2025

Enrollment Period

1.3 years

First QC Date

December 17, 2024

Last Update Submit

December 19, 2025

Conditions

Keywords

Ropeginterferon alfa-2b

Outcome Measures

Primary Outcomes (1)

  • Maintenance of Treatment response

    Median HCT lower than 45% without disease progression

    From date of randomization until the date of follow up assessed up to 6 months.

Secondary Outcomes (7)

  • Complete hematological (CHR) and clinical remission (CR)

    From date of randomization until the date of follow up assessed up to 6 months

  • Change in JAK2 variant allele frequency (VAF) since treatment start

    From date of randomization until the date of follow up assessed up to 6 months

  • Frequency of phlebotomies

    From date of randomization until the date of follow up assessed up to 6 months

  • Change in spleen size since treatment start

    From date of randomization until the date of follow up assessed up to 6 months

  • Incidence of any of the following: o arterial and venous thrombotic events; o hemorrhagic events; o disease related symptoms; o disease evolutions into myelofibrosis and acute leukemia; o secondary malignancies o death

    During the follow up every 6months per patient.

  • +2 more secondary outcomes

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Thirty-six patients completed the Low-PV RCT and were still under treatment with Ropeg at study end. The "LOW-PV Continuation" study aim to update data of all these patients, regardless of the treatment they are undergoing at the time of enrollment in the current study, after having obtained their informed consent to participation.

You may qualify if:

  • Patients enrolled in the LOW-PV RCT study who continued to receive Ropeginterferon alfa-2b until the conclusion of the study on March 31, 2023. These patients will be included regardless of the treatment they are undergoing at the time of enrollment in the current study.
  • Patients who have signed the written informed consent for study participation.

You may not qualify if:

  • None

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (13)

Fondazione IRCCS Policlinico San Matteo, Divisione Ematologia

Pavia, Lombardy, 27100, Italy

NOT YET RECRUITING

Ospedale Borgo Roma, Divisione Ematologia

Verona, Veneto, 37134, Italy

NOT YET RECRUITING

ASST Papa Giovanni XXIII, SC Ematologia

Bergamo, Italy

RECRUITING

Policlinico S. Orsola - Malpighi, UO Ematologia

Bologna, Italy

RECRUITING

Azienda Ospedaliero Universitaria Careggi, SOD Ematologia

Florence, Italy

RECRUITING

Fondazione IRCCS Cà Granda - Ospedale Maggiore Policlinico, SC Ematologia

Milan, Italy

RECRUITING

Ospedale San Raffaele, Unità Operativa di Ematologia e Trapianto Midollo Osseo

Milan, Italy

RECRUITING

Azienda Ospedaliera Universitaria Federico II di Napoli Divisione di Ematologia e Trapianti del Midollo

Naples, 80131, Italy

RECRUITING

Azienda Ospedaliero Universitaria Maggiore della Carità di Novara SCDU Ematologia

Novara, 28100, Italy

RECRUITING

Policlinico Universitario Fondazione Agostino Gemelli

Roma, 00168, Italy

NOT YET RECRUITING

A.O.U. Città della Salute e della Scienza di Torino - Ospedale Molinette- S.C. Ematologia U

Torino, 10126, Italy

RECRUITING

ASST Sette Laghi, Ospedale di Circolo e F. Macchi, Divisione UO Ematologia

Varese, Italy

RECRUITING

Azienda ULSS 8 Berica - Ospedale San Bortolo, Divisione di Ematologia

Vicenza, Italy

NOT YET RECRUITING

MeSH Terms

Conditions

Polycythemia Vera

Condition Hierarchy (Ancestors)

Bone Marrow NeoplasmsHematologic NeoplasmsNeoplasms by SiteNeoplasmsBone Marrow DiseasesHematologic DiseasesHemic and Lymphatic DiseasesMyeloproliferative Disorders

Study Officials

  • TIZIANO BARBUI, MD

    FROM- Fondazione per la Ricerca Ospedale di Bergamo- ETS

    STUDY DIRECTOR

Central Study Contacts

FRANCESCA FENILI

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 17, 2024

First Posted

December 31, 2024

Study Start

November 30, 2024

Primary Completion

March 30, 2026

Study Completion

March 31, 2026

Last Updated

December 26, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations