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

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-509750-58-00
Acronym
VERIFY
Enrollment
102
Registered
2024-04-10
Start date
2022-09-21
Completion date
Unknown
Last updated
2026-01-26

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

Conditions

Polycythemia Vera

Brief summary

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%.

Detailed description

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 at end of Part 1a (Week 32) in the Patient Reported Outcomes Measurement Information System (PROMIS) Fatigue Short Form 8a total T-score, 4 - Mean change from baseline at end of Part 1a (Week 32) in the Myelofibrosis Symptom Assessment Form version 4.0 (MFSAF), 5 - Mean change from baseline at end of Part 1a (Week 32) in the Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF)

Interventions

DRUGRusfertide 45mg
DRUGPlacebo to Match PTG-300 for Injection. Formulation (lyophilized powder) is based upon that of PTG-300 for Injection
DRUGwith the drug substance omitted.
DRUGRusfertide 30mg
DRUGRusfertide 10mg
DRUGRusfertide 60mg
DRUGRusfertide 20mg

Sponsors

Protagonist Therapeutics Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
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%.

Secondary

MeasureTime frame
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 at end of Part 1a (Week 32) in the Patient Reported Outcomes Measurement Information System (PROMIS) Fatigue Short Form 8a total T-score, 4 - Mean change from baseline at end of Part 1a (Week 32) in the Myelofibrosis Symptom Assessment Form version 4.0 (MFSAF), 5 - Mean change from baseline at end of Part 1a (Week 32) in the Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF)

Countries

Austria, Belgium, Czechia, France, Germany, Hungary, Italy, Netherlands, Poland, Portugal, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026