View clinical trials related to Polycythemia Vera.
Filter by:Adult patients (>18 years) with newly diagnosis of Ph negative myeloproliferative neoplasms (MPNs) according to WHO 2016 criteria, will be recruited to this study. This study is the result of the collaboration the Hematology Division of Federico II University Medical School of Naples (Italy), that performed the US investigation and the IRCCS SYNLAB SDN where the patients carried out MR. The study is conducted in accordance with the Declaration of Helsinki. All subjects gave informed consent to receive both US and MR scans of the spleen. All spleen US scans were performed by the same operator (with>10 years of experience in abdominal US), who used an EPIQ 5 Philips instrument with a 1-5 MHz broadband curvilinear probe. The spleen was scanned in patients who were fasting, in the longitudinal and transverse planes by using an intercostal approach, a subcostal approach, or both. The patient was placed in a supine or right-sided position until complete organ visualization was achieved. Perimeter, longitudinal diameter (LD), and area, defined as the maximum measurements with splenic borders and angles clearly defined, were measured, and SV (in milliliters) was calculated automatically. For each subject, the mean value of 3 measurements repeated on the same imaging session was calculated and recorded for final analysis. Within two weeks from the US, each patient underwent an MRI of the upper abdomen to evaluate the splenic volume. MRI examinations were performed using a 3T Biograph mMR scanner (Siemens Healthcare, Erlangen, Germany) with 4-channel flex phased-array body coil. Routine clinical abdominal MRI acquisition includes coronal T2W Half-Fourier Acquisition Single-shot Turbo spin Echo imaging (HASTE), axial T1 Dual-echo FSE, axial T2 TSE Fat Sat, and an axial diffusion-weighted imaging (DWI). The DWI includes an apparent diffusion coefficient (ADC) map that was automatically generated at the time of acquisition. At last, an isotropic 2mm3 axial Volumetric Interpolated Breath-hold Examination (VIBE) sequence for SV evaluation was acquired. For the latter, attention was paid to optimize the field of view to the spleen, in order to reduce patient's apnea and possible respiratory artifacts. A radiologist with mote than 10 years of experience in abdominal MRI reporting performed measurement of the three orthogonal diameters of the spleen for each patient. Subsequently, SV was calculated using ITK-SNAP software and semi-automatic 3D segmentation approach, firstly based on a signal threshold.
The prospective multicenter observational cohort study will be offered consecutively to any patient with primary or secondary myelofibrosis or with Polycythemia Vera who has initiated therapy with ruxolitinib, prescribed as part of the normal course of care and completely independent of study participation. The main purpose is to assess adherence to ruxolitinib using the ARMS questionnaire. Each individual patient will be administered the questionnaire at the first convenient opportunity, regardless of when ruxolitinib is started, and again after 4, 8, 12, 24, and 48 weeks, in conjunction with drug procurement.
Jakavi® therapy for polycythemia vera (PV) has so far been studied exclusively in clinical trials and at selected clinical trial centres. This observational study is intended to document the therapy of PV in daily practice with a broad patient population and a geographically representative selection of German centres (both hospitals and practices). The prospective mapping of daily practice reality is thus the main goal of this project.
This was an analytical and descriptive, non-interventional, retrospective cohort study of PV patients aged ≥ 18 years in the US using a secondary data source, Optum EHR database.
This was a prospective, two-arm, non-interventional study of JAKAVI® (Ruxolitinib) in patients with myelofibrosis
This was an open-label, randomized, dose-finding study in patients with primary or secondary MF (Dynamic International Prognostic Scoring System [DIPSS] risk score of Intermediate-1 to High-Risk) who were previously treated with ruxolitinib. The study was designed to support a pacritinib dosage selection decision with evaluation of 3 dosages.
This is an open label, single arm trial of PTG-300 in subjects with PV who are newly diagnosed or for whom current therapy is not sufficient to control their hematocrit and have hematocrit >48% prior to dosing. The PTG-300 dose and schedule may be adjusted every 2 to 4 weeks to maintain hematocrit <45% with a target of <43%. Subjects may receive PTG-300 treatment for up to 52 weeks.
This is a 2-part study. In Part 1, participants will be dosed at 2 different dose levels in order to select the RP2D for Part 2 of the study.
This phase IIB, open-label, multicenter study evaluated the efficacy and safety of oral Jaktinib Hydrochloride Tablets in Intermediate-risk and High-risk Myelofibrosis and Previously Treated With Ruxolitinib. The experiment is divided into two parts: dose exploration and extended research.
This is a Phase 2 single arm study to investigate efficacy and safety of P1101 for adult Japanese patients with PV.