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Keep this study
Lead
Protagonist Therapeutics, Inc.
Phase 2 study in approximately sixty subjects previously diagnosed with Polycythemia Vera who require phlebotomy on a routine basis. There is a 28 week dose finding phase to identify a dose that maintains hematocrit \<45%. Subjects who successfully complete the dose finding phase will be entered into a 12 week randomized withdrawal phase to confirm the response. Subsequently patients will enter into an up to 3 year open label extension to investigate long term safety.
Age
18–any
Sex
ALL
Healthy volunteers
Not accepted
You may be eligible if
1. Male and female subjects aged 18 years or older.
2. Meet revised 2016 World Health Organization (WHO) criteria for the diagnosis of polycythemia vera.
3. Records of all phlebotomies performed for at least 28 weeks (preferably up to 52 weeks) before dosing are available.
4. Subjects who are not receiving cytoreductive therapy must have been discontinued from any prior cytoreductive therapy for at least 24 weeks before screening and have recovered from any adverse events due to cytoreductive therapy.
5. Subjects receiving cytoreductive therapy with hydroxyurea, interferon, or ruxolitinib must have received cytoreductive therapy for at least 24 weeks and be on a stable dose or have a decreasing dose (Medical Monitor approval required) for at least 8 weeks before dosing and with no planned change in dose.
You may not be if
1. Active or chronic bleeding within 4 weeks of screening.
2. Meets the criteria for post-PCV myelofibrosis as defined by the International Working Group-Myeloproliferative Neoplasms Research and Treatment (IWG-MRT).
3. Known primary or secondary immunodeficiency.
4. Any surgical procedure requiring general anesthesia within 1 month prior to screening or planned elective surgery during the study.
