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Clinical trialNCT04551053TerminatedPhase 3Interventional

To Evaluate Efficacy and Safety of Parsaclisib and Ruxolitinib in Participants With Myelofibrosis Who Have Suboptimal Response to Ruxolitinib (LIMBER-304)

SponsorIncyte CorporationEnrollment177MyelofibrosisPost Essential Thrombocythemia MyelofibrosisPost Polycythemia Vera MyelofibrosisPrimary Myelofibrosis
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

The purpose of the study is to compare the efficacy and safety of parsaclisib when combined with ruxolitinb versus placebo combined with ruxolitinib in participants with myelofibrosis who have suboptimal response while receiving ruxolitinib monotherapy.

Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

177 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

Austria
  • Hanusch-Krankenhaus Wiener Gebietskrankenkasse

    Vienna, Austria

Belgium
  • A.Z. St.-Jan A.V.

    Bruges, Belgium

  • Jessa Ziekenhuis

    Hasselt, Belgium

  • Az Delta

    Roeselare, Belgium

  • Chu Ucl Namur University Hospital Mont-Godinne

    Yvoir, Belgium

China
  • Peking University People'S Hospital (pkuph) - Institute of Hematology

    Beijing, China

  • Peking University Third Hospital

    Beijing, China

  • Peking University Third Hospital

    Beijing, China

  • Xuanwu Hospital Capital Medical University

    Beijing, China

  • the First Hospital of Jilin University

    Changchun, China

  • the First Peoples Hospital of Changzhou

    Changzhou, China

  • Fujian Medical University Union Hospital

    Fuzhou, China

  • Nanfang Hospital

    Guangzhou, China

  • the First Affiliated Hospital of Zhejiang University

    Hangzhou, China

  • Harbin Institute of Hematology and Oncology

    Harbin, China

  • University of Science and Technology of China-First Affiliated Hospital (anhui Provincial Hospital)

    Hefei, China

  • the Affiliated Hospital of Inner Mongolia Medical University

    Hohhot, China

  • Jinan Central Hospital

    Jinan, China

  • the Second Affiliated Hospital of Kunming Medical University

    Kunming, China

  • Lanzhou University Second Hospital

    Lanzhou, China

  • the First Hospital of Lanzhou University

    Lanzhou, China

  • Jiangxi Provincial of People Hospital

    Nanchang, China

  • the First Affiliated Hospital of Nanchang University

    Nanchang, China

  • Jiangsu Province Hospital

    Nanjing, China

  • the Affiliated Hospital of Qingdao University

    Qingdao, China

  • the First Hospital of China Medical University

    Shenyang, China

  • Shenzhen University Hospital

    Shenzhen, China

  • Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Pek

    Tianjin, China

  • Tianjin Medical University General Hospital

    Tianjin, China

  • Tongji Hospital Huazhong University of Science and Technology

    Wuhan, China

  • Union Hospital Affiliated To Tongji Medical College of Huazhong University of Science and Technology

    Wuhan, China

  • the Second Affiliated Hospital of Xi An Jiaotong University

    Xi'an, China

  • Yantai Yuhuangding Hospital

    Yantai, China

  • Henan Cancer Hostipal

    Zhengzhou, China

  • Henan Provincial Peoples Hospital

    Zhengzhou, China

Finland
  • Helsinki University Central Hospital

    Helsinki, Finland

France
  • Centre Hospitalier Universitaire Grenoble Alpes (chu Grenoble Alpes) - Hopital Albert Michallon

    La Tronche, France

  • Chu Limoges - Hopital Duputren

    Limoges, France

  • Chu de Limoges

    Limoges, France

  • Centre Hospitalier Universitaire de Nantes (chu de Nantes) - Hotel-Dieu

    Nantes, France

137 more sites on the registry record.ClinicalTrials.gov ↗

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

ParsaclisibPlaceboRuxolitinib →
Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
26 May 2021
Primary completion
16 Aug 2023
Completion
21 Aug 2024
Last update posted
2 Oct 2025
Registered enrollment
177
Registry id
NCT04551053

Cross-registrations

EU-CTR / CTIS (EudraCT)2020-003415-98

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 4 Nov 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.