Skip to content

A Phase 3 Study of Rusfertide (PTG-300) in Patients with Polycythemia Vera

A Phase 3 Study of the Hepcidin Mimetic Rusfertide (PTG-300) in Patients with Polycythemia Vera - VERIFY

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2021-004732-29-CZ
Enrollment
250
Registered
2022-04-21
Start date
2022-08-31
Completion date
Unknown
Last updated
2024-05-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Polycythemia Vera MedDRA version: 21.1 Level: PT Classification code 10036057 Term: Polycythaemia vera System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) MedDRA version: 21.1 Level: LLT Classification code 10036061 Term: Polycythemia vera System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)

Interventions

Product Name: Rusfertide Product Code: PTG-300 Pharmaceutical Form: Powder and solvent for solution for injection INN or Proposed INN: Rusfertide CAS Number: 1628323-80-7 Current Sponsor code: PTG-300

Sponsors

Protagonist Therapeutics, Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Male and female subjects aged 18 (or the minimum country specific age of consent if >18) years or older. 3. Meet revised 2016 World Health Organization (WHO) criteria for the diagnosis of polycythemia vera 4. Phlebotomy requiring defined as ALL of the following: a. At least 3 phlebotomies due to inadequate hematocrit control in 28 weeks before randomization or at least 5 phlebotomies due to inadequate hematocrit control in 1 year before randomization, and 5. CBC values immediately prior to randomization: a. Hematocrit =65 years) yes F.1.3.1 Number of subjects for this age range 50

Exclusion criteria

Exclusion criteria: 1. Clinically meaningful laboratory abnormalities at Screening 2. Subjects who require phlebotomy at hematocrit levels lower than 45%. 3. Clinically significant thrombosis (e.g., deep vein thrombosis or splenic vein thrombosis) within 2 months prior to randomization. 4. Active or chronic bleeding within 2 months prior to randomization. 5. History of invasive malignancies within the last 5 years, except a) localized cured cancer (e.g. prostate cancer and cervical cancer). b) localized cured in situ or stage 1 squamous cell carcinoma of the skin, basal cell carcinoma of the skin, or in situ melanoma of the skin. 6. Subjects with in situ or stage 1 squamous cell carcinoma of the skin, in situ or stage 1 basal cell carcinoma of the skin, or in situ melanoma of the skin identified during screening unless the cancer is adequately treated before randomization. 7. Received busulfan, pipobroman or 32Phosphorus within 7 months prior to screening.

Design outcomes

Primary

MeasureTime frame
Main Objective: To evaluate the safety and efficacy of rusfertide in subjects with polycythemia vera in maintaining hematocrit control.;Secondary Objective: Not applicable;Primary end point(s): Proportion of subjects achieving a response starting at Week 20 through Week 32 (inclusive) who receive rusfertide compared to placebo. A response is defined as absence of phlebotomy eligibility. Phlebotomy eligibility is defined as either: • a confirmed hematocrit =45% and that is at least 3% higher than the baseline hematocrit (value immediately prior to randomization at Week 0); or • a hematocrit =48%. ;Timepoint(s) of evaluation of this end point: Week 20 through Week 32 (inclusive)

Secondary

MeasureTime frame
Secondary end point(s): 1. Mean number of phlebotomies between Week 0 through Week 32 (inclusive). 2. Proportion of subjects with all hematocrit values <45% between Week 0 through Week 32 (inclusive). 3. Mean change from baseline in total fatigue score based on PROMIS® Short Form 8a at Week 32. 4. Mean change from baseline in total score based on MFSAF v4.0 at Week 32. ;Timepoint(s) of evaluation of this end point: Week 0 through Week 32 (inclusive)

Countries

Australia, Austria, Belgium, Canada, Chile, Czechia, Czech Republic, France, Germany, Hong Kong, Hungary, India, Israel, Italy, Mexico, Netherlands, Poland, Portugal, Spain, Turkey, United Kingdom, United States

Contacts

Public ContactClinical Trials Information

Medpace Finland OY

regsubmissions@medpace.com46702524055

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026