AOP2014 vs. BAT in Patients With Polycythemia Vera Who Previously Participated in the PROUD-PV Study.
CONTI-PV
An Open-label, Multicenter, Phase IIIb Study Assessing the Long-term Efficacy and Safety of AOP2014 and Standard First Line Treatment (BAT) in Patients With Polycythemia Vera Who Previously Participated in the PROUD-PV Study
2 other identifiers
interventional
170
12 countries
47
Brief Summary
Polycythemia Vera (PV) is a disease of bone marrow stem cells that manifests in a drastic increase of red blood cells and frequently also of white blood cells. The "thickening" of the blood in relation with a modified function of the cells has several consequences like increased blood pressure, pruritus of the skin, fatigue, disturbed blood circulation in the brain as well as fingers and toes and an increased risk of arterial and venous thrombosis (thrombosis is the formation of a blood clot in a vessel); like stroke, cardiac infarction, deep vein thrombosis in the legs. In case of a strong increase of platelets there is an additional risk of bleedings. As the disease progresses the size of spleen and liver increased in most cases and the bone marrow shows signs of fibrosis. In some cases of PV a progression at a later time point to a leukemia (increased formation of white blood cells) can occur. The aim of this study is to show that the study drug AOP2014 (pegylated proline interferon alpha-2b) has the long term efficacy and safety in controlling the disease. A comparison arm is receiving best available therapy as selected by the investigator. Response to the treatment is measured by several blood parameters as well as size of the spleen. Interferon-alpha has been shown to be effective in controlling the blood parameters by immunologically influencing the blood building cells. This can lead to a suppression of the disease-causing stem cells and help healthy stem cells to proliferate. Through this mechanism it is possible that Interferon-alpha can avoid long-term damaging effects of the disease.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Nov 2014
Longer than P75 for phase_3
47 active sites
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
First Submitted
Initial submission to the registry
August 14, 2014
CompletedFirst Posted
Study publicly available on registry
August 15, 2014
CompletedStudy Start
First participant enrolled
November 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 29, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
April 29, 2021
CompletedJune 1, 2021
May 1, 2021
6.5 years
August 14, 2014
May 27, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Disease response at quarterly assessment visits
The primary efficacy endpoint will be the rate of disease response at assessment visits (every 3 months). The co-primary efficacy evaluation criterion will be (1) disease response defined as hematologic response: Hct\<45% without phlebotomy (at least 3 months since the last phlebotomy), PLTs\<400 x 109/L, WBCs\<10 x 109/L, and normal spleen size, and (2) disease response defined as hematologic response (Hct\<45% without phlebotomy (at least 3 months since the last phlebotomy), PLTs\<400 x 109/L, WBCs\<10 x 109/L), resolution and/or clinically improvement of disease-related signs (clinical significant splenomegaly) and disease-related symptoms (microvascular disturbances, pruritus, headache).
3 years
Study Arms (2)
Best available therapy (BAT)
ACTIVE COMPARATORBest available therapy, as chosen by the investigator for patients who had been on HU in the 1 Year PROUD-PV study
Pegylated-Proline-interferon alpha-2b
EXPERIMENTALAOP2014 for those patients who had been on AOP2014 in the PROUD-PV study
Interventions
Subjects will continue to receive the dosage which delivers the optimal disease response (hematocrit \[Hct\]\<45%, platelets \[PLTs\]\<400 x 109/L and leukocytes \[WBCs\]\<10 x 109/L), as determined in the PROUD-PV study, preferably at the level of target blood values.
Best available therapy as selected by the investigator
Eligibility Criteria
You may qualify if:
- Patients who completed the 12 months AOP2014 treatment arm of the PROUD-PV study and at the "end-of-treatment visit" (EoT) of the PROUD-PV study who fulfill at least one of the following criteria:
- normalization of at least two out of three main blood parameters (Hct, PLTs and WBCs) if these parameters were moderately increased (Hct\<50%, WBC\<20 x 109/L, PLTs\<600 x 109/L) at baseline of the PROUD-PV study, OR
- \>35% decrease of at least two out of three main blood parameters (Hct, PLTs and WBCs) if these parameters were massively increased (Hct\>50%, WBCs\>20 x 109/L, PLTs\>600 x 109/L), at baseline of the PROUD-PV study, OR
- normalization of spleen size, if spleen was enlarged at baseline of the PROUD-PV study, OR
- otherwise a clear, medically verified benefit from treatment with AOP2014 (e.g. normalization of disease-related micro-vasculatory symptoms, substantial decrease of JAK2 allelic burden).
- Signed written ICF.
You may not qualify if:
- Withdrawal criteria, as specified in the PROUD-PV study, which mandate treatment discontinuation:
- Non-recovery from the AOP2014 related toxicities to the grade (usually, Grade I) which allows continuation of the treatment.
- HADS score of 11 or higher on either or both of the subscales, and /or development or worsening of the clinically significant depression or suicidal thoughts.
- Progressive and clinically significant increase of liver enzyme levels despite dose reduction, or if such increase is accompanied by increased bilirubin level, any signs or symptoms of a clinically significant autoimmune disease.
- Clinically significant development of a new ophthalmologic disorder, or worsening of a pre-existing one, during the study.
- Loss of efficacy of AOP2014 or any comparable situation where no further benefits of treatment continuation are expected by the investigator.
- The main efficacy evaluation criterion will be disease response defined as Hct\<45% without phlebotomy (at least 3 months since the last phlebotomy), PLTs\<400 x 109/L, WBCs\<10 x 109/L, and normal spleen size.
- The main efficacy endpoint will be the maintenance rate of disease response at assessment visits (every three months).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (47)
LKH Graz
Graz, Austria
University Hospital Innsbruck
Innsbruck, Austria
Elisabethinen Hospital Linz
Linz, Austria
Salzburg Regional Hospital
Salzburg, Austria
Hanusch Hospital
Vienna, Austria
Medical University Vienna
Vienna, Austria
Hospital Wels-Grieskirchen
Wels, Austria
University Multiprofile Hospital for Active Treatment "Sveti Georgi", Plovdiv
Plovdiv, Bulgaria
Specialized Hospital for Active Treatment of Hematological Diseases
Sofia, Bulgaria
Multiprofile Hospital for Active Treatment "Sveta Marina", Varna
Varna, Bulgaria
Multiprofile Hospital for Active Treatment - Hristo Botev, Vratsa, First Department of Internal Medicine
Vratsa, Bulgaria
University Hospital Brno
Brno, Czechia
University Hospital Hradec Kralove
Hradec Králové, Czechia
University Hospital Kralovske Vinohrady
Prague, Czechia
University Hospital Motol
Prague, Czechia
Institute Paoli-Calmettes
Marseille, France
Hospital Saint-Louis
Paris, France
Clinical Research Center CIC
Poitiers, France
Aachen University Hospital, Medical Clinic IV
Aachen, Germany
University Hospital Bonn, Center for Internal Medicine, Medical Clinic and Outpatient Clinic III
Bonn, Germany
University Hospital Carl Gustav Carus, Medical Clinic and Polyclinic I
Dresden, Germany
St Istvan and St Laszlo Hospital of Budapest
Budapest, Hungary
University of Debrecen
Debrecen, Hungary
Bekes County Pandy Kalman Hospital, 1st Department of Medicine, Hematology
Gyula, Hungary
Kaposi Mor County Teaching Hospital
Kaposvár, Hungary
University of Szeged, Albert Szent-Gyorgyi Clinical Center, Koranyi fasor 6
Szeged, Hungary
University Hospital in Cracow
Krakow, Poland
Independent Public Teaching Hospital No.1 in Lublin
Lublin, Poland
Fryderyk Chopin Provincial Specialized Hospital
Rzeszów, Poland
Nicolaus Copernicus Municipal Specialist Hospital
Torun, Poland
Institute of Hematology and Transfusion Medicine
Warsaw, Poland
Emergency Clinical County Hospital Brasov
Brasov, Romania
Bucharest University Emergency Hospital
Bucharest, Romania
Coltea Clinical Hospital
Bucharest, Romania
Baranov Republican Hospital
Petrozavodsk, Russia
Samara Kalinin Regional Clinical Hospital
Samara, Russia
Komi Republican Oncology Center
Syktyvkar, Russia
Tula Regional Clinical Hospital
Tula, Russia
Yaroslavl Regional Clinical Hospital
Yaroslavl, Russia
University Hospital with Outpatient Clinic F.D. Roosevelt
Banská Bystrica, Slovakia
Saint Cyril and Metod University Hospital Bratislava
Bratislava, Slovakia
Hospital del Mar
Barcelona, Spain
Cherkasy Regional Oncology Center, Regional Treatment and Diagnostics Hematology Center
Cherkasy, Ukraine
Dnipropetrovsk City Multispecialty Clinical Hospital #4
Dnipropetrovsk, Ukraine
National Research Center for Radiation Medicine, Institute of Clinical Radiology
Kiev, Ukraine
Institute of Blood Pathology and Transfusion Medicine
Lviv, Ukraine
O.F. Herbachevskyi Regional Clinical Hospital
Zhytomyr, Ukraine
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Heinz Gisslinger, MD
Med Uni Wien
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 14, 2014
First Posted
August 15, 2014
Study Start
November 1, 2014
Primary Completion
April 29, 2021
Study Completion
April 29, 2021
Last Updated
June 1, 2021
Record last verified: 2021-05