SNPMiner Trials by Shray Alag


SNPMiner Trials: Clinical Trial Report


Report for Clinical Trial NCT01259856

Developed by Shray Alag, 2019.
SNP Clinical Trial Gene

Randomized Trial of Pegylated Interferon Alfa-2a Versus Hydroxyurea Therapy in the Treatment of High Risk Polycythemia Vera (PV) and High Risk Essential Thrombocythemia (ET)

This research is looking at two conditions, Essential Thrombocythemia (ET) and Polycythemia Vera (PV). ET causes people to produce too many blood cells called platelets and PV causes too many platelets and red blood cells to be made. Platelets are particles which circulate in the blood stream and normally prevent bleeding and bruising. Having too many platelets in the blood increases the risk of developing blood clots, which can result in life threatening events like heart attacks and strokes. When the number of red blood cells is increased in PV this will slow the speed of blood flow in the body and increases the risk of developing blood clots. The purpose of this study is to look at the effectiveness of giving participants who have been diagnosed with ET or PV one of two different study regimens over time. The study subject will be followed for their condition for about 5 years. The subject will be randomized into one of two study regimens, either Pegylated Interferon Alfa-2a (PEGASYS) or Aspirin and Hydroxyurea (also called Hydroxycarbamide). The subject must be newly diagnosed or already receiving treatment for either PV or ET. Each of the study drugs used in this study is already being used to treat subjects with ET or PV currently, but the investigators are unsure which study drug is better.

NCT01259856 High Risk Polycythemia Vera High Risk Essential Thrombocythemia
MeSH: Polycythemia Polycythemia Vera Thrombocytosis Thrombocythemia, Essential
HPO: Polycythemia Thrombocytosis

3 Interventions

Name: PEGASYS

Description: The subject will begin receiving the PEGASYS at a dose level of 45 micrograms weekly and gradually get increased to the maximum dose of 180 micrograms per week. The dose will be administered by prefilled syringes that will be injected subcutaneously. Subjects will receive therapy for up to 12 months.

Type: Drug

PEGASYS

Name: Hydroxyurea

Description: Subjects will receive a 500mg tablet to be taken twice daily for up to 12 months of treatment.

Type: Drug

Hydroxyurea

Name: Aspirin

Description: Subject will be asked to take 81 to 100mg per day for the 12 months of the study treatment.

Type: Drug

PEGASYS Hydroxyurea


Primary Outcomes

Description: Number of participants with Complete Remission after 12 months of therapy assessed by hematologic response rates two strata of patients with high risk polycythemia vera (PV) or high risk essential thrombocythemia (ET). Complete remission means no evidence of disease.

Measure: Number of Participants With Complete Remission (CR)

Time: 12 months

Description: Number of participants with Partial Remission after 12 months of therapy assessed by hematologic response rates two strata of patients with high risk polycythemia vera (PV) or high risk essential thrombocythemia (ET). Partial Remission means decrease in the size of a tumor, or in the extent of cancer in the body, in response to treatment.

Measure: Number of Participants With Partial Remission (PR)

Time: 12 months

Secondary Outcomes

Description: Number of Participants with Grade 3 and Grade 4 Hematological and Non-hematological Events using the Common Terminology Criteria for Adverse Events (CTCAE) 4.0 to assess the toxicity, safety and tolerability of therapy (Pegylated Interferon Alfa-2a vs. Hydroxyurea).

Measure: Number of Participants With Grade 3 and Grade 4 Hematological and Non-hematological Events

Time: 4 years

Description: Change in the Total Symptom Score which assessed improvement in disease symptoms measured by the change in TSS from the Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF) instrument being used in this study from baseline to 12 months. This 19 item instrument includes the previously validated 9 item brief fatigue inventory (BFI), symptoms related to splenomegaly, inactivity, cough, night sweats, pruritus, bone pains, fevers, weight loss, and an overall quality of life assessment. Each item is scored from 0-10 with full scale from 0-190, with higher scores mean worse symptoms.

Measure: Change in the Total Symptom Score (TSS)

Time: baseline and 12 months

Description: To compare the impact of therapy (Pegylated Interferon Alfa-2a vs. Hydroxyurea) on key biomarkers of the disease(s) by measuring the JAK2 allele burden.

Measure: JAK2 Allele Burden

Time: 4 years

Description: The impact of PEGASYS on JAK2 will be measured by the allele burden; hematopoietic cell clonality will be measured by whether patients with clonal disease return to polyclonal; bone marrow histopathology will be measured by going from abnormal to normal; cytogenetic abnormalities will be measured by seeing if the cytogenetics go from abnormal to normal.To compare the impact of therapy on JAK2-V617F (JAK2), CALR, hematopoietic cell clonality in platelets and granulocytes in females, bone marrow histopathology, and cytogenetic abnormalities.

Measure: Allele Burden

Time: 4 years

Description: Survival and incidence of development of myelodysplastic syndrome, myelofibrosis, or leukemic transformation after therapy To estimate survival and incidence of development of myelodysplastic syndrome, myelofibrosis, or leukemic transformation after therapy (Pegylated Interferon Alfa-2a vs. Hydroxyurea) by capturing the rate of progression to a more advanced myeloid malignancy.

Measure: Number of Participants With Progression of Disease or Death

Time: 4 years

Measure: Number of Participants With Major Cardiovascular Events After Therapy

Time: 4 years

Purpose: Treatment

Allocation: Randomized

Parallel Assignment


There is one SNP

SNPs


1 V617F

The impact of PEGASYS on JAK2 will be measured by the allele burden; hematopoietic cell clonality will be measured by whether patients with clonal disease return to polyclonal; bone marrow histopathology will be measured by going from abnormal to normal; cytogenetic abnormalities will be measured by seeing if the cytogenetics go from abnormal to normal.To compare the impact of therapy on JAK2-V617F (JAK2), CALR, hematopoietic cell clonality in platelets and granulocytes in females, bone marrow histopathology, and cytogenetic abnormalities.. Number of Participants With Progression of Disease or Death. --- V617F ---



HPO Nodes


HPO:
Polycythemia
Genes 15
PKLR SH2B3 VHL JAK2 ENG EPO EPOR SLC30A10 EPAS1 EGLN1 BPGM ACVRL1 CYB5R3 FH GATA1
Thrombocytosis
Genes 25
MPL IFNGR1 CD55 JAK2 TET2 ELANE RPS19 RPSA HMGCL TMEM173 ABL1 THPO RUNX1 ZMPSTE24 LMNA SH2B3 HBB BCR ACAT1 ADA2 MTHFD1 CALR TTC37 TBC1D24 PMM2