Clinical trial NCT00614523: Romiplostim Treatment of Thrombocytopenia in Subjects With Low or Intermediate-1 Risk Myelodysplastic Syndrome (MDS)
Official title: A Randomized, Double Blind, Placebo Controlled Study Evaluating the Efficacy and Safety of Romiplostim Treatment of Thrombocytopenia in Subjects With Low or Intermediate-1 Risk Myelodysplastic Syndrome (MDS)
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: MDS
Myelodysplastic Syndromes
Thrombocytopenia
Keywords: MDS
Low Risk MDS
Intermediate-1 Risk MDS
Thrombocytopenia
Lead sponsor: Amgen
Sponsor class: INDUSTRY
First posted: 2008-02-13
Enrollment: 250
Sex: ALL
Minimum age (years): 18
Maximum age (years): 90
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: SUPPORTIVE_CARE

Brief summary: The Data Monitoring Committee (DMC) for study 20060198 recommended that all subjects discontinue treatment of study drug and continue to be followed for long term follow-up. Amgen adopted the DMC recommendation.

Detailed description: This is a Phase 2, multicenter, randomized, double blind, placebo controlled study designed to assess the efficacy and safety of romiplostim (formerly, AMG 531) treatment in thrombocytopenic MDS patients. The study is composed of a 26-week placebo controlled test treatment period (romiplostim versus Placebo), a 4 week interim wash-out period, a 24-week placebo controlled extended treatment period, and a 4-week follow-up period followed by an End of Study (EOS) visit. During the interim wash-out period, a bone marrow biopsy will be performed in the absence of growth factor to assess changes in the marrow. In the extended treatment period, safety assessments will continue and participants will be allowed to receive any standard of care treatments for MDS. Patients will be followed for survival for an additional 60 months following the End of Study (EOS) visit.

Eligibility criteria: Inclusion Criteria: • Diagnosis of MDS using the World Health Organization (WHO) classification for myeloid neoplasms as assessed during the screening period. • Per MDS International Prognostic Scoring System (IPSS), low or intermediate-1 risk MDS as assessed during the screening period. • Mean of the 2 platelet counts taken within 4 weeks prior to randomization must be: - ≤ 20 x 10\^9/L, (with no individual count \>30 x 10\^9/L during the screening period), with or without history of bleeding associated with diagnosis of MDS, OR - ≤ 50 x 10\^9/L, (with no individual count \>60 x 10\^9/L during the screening period) with a history of bleeding associated with the diagnosis of MDS. • Patients must be ≥18 and ≤ 90 years of age at time of informed consent. Patients between 85 and 90 years of age must have been diagnosed with MDS ≤ 5 years from study start. • Eastern Cooperative Oncology Group (ECOG) performance status of 0-2. • Adequate liver function, as evidenced by alanine aminotransferase (ALT) ≤ 3 times laboratory normal range, aspartate aminotransferase (AST) ≤ 3 times laboratory normal range and total bilirubin ≤ 2.0 times laboratory normal range. (Adequate liver function for patients with confirmed diagnosis of Gilbert's Disease evidenced by ALT ≤ 3 times laboratory normal range, and AST ≤ 3 times laboratory normal range.) • Serum creatinine concentration ≤ 2 mg/dl (≤176.8 μmol/L). • Bone marrow biopsy and aspirate with cytogenetics within 3 months of starting first dose of investigational product. • Written Informed Consent. Exclusion Criteria: • Have ever received any disease-modifying treatment for MDS. • Previously diagnosed with intermediate-2 or high risk MDS using the IPSS. • Prior history of leukemia, aplastic anemia, or other non-MDS related bone marrow stem cell disorder. • Prior history of hematopoietic stem cell transplantation. • Persistent peripheral blood monocytosis (≥ 3 months with an absolute monocyte count \>1,000/μL) or known diagnosis of Chronic Myelomonocytic Leukemia per French-American-British Classification System for MDS (FAB) criteria. • Prior malignancy (other than in situ cervical cancer, non-melanoma skin cancer, or in situ carcinoma) unless treated with curative intent and without evidence of disease for ≥ 3 years before randomization. • Active or uncontrolled infections. • Unstable angina, congestive heart failure (New York Heart Association \[NYHA\] \> class II), uncontrolled hypertension (diastolic \>100 mmHg), uncontrolled cardiac arrhythmia, or recent (within 1 year) myocardial infarction. • History of arterial thrombosis (eg, stroke or transient ischemic attack) within the past year. • History of venous thrombosis that currently requires anti-coagulation therapy. • Received Interleukin (IL)-11 within 4 weeks of first dose of investigational product. • Have previously received any thrombopoietic growth factor. • Receipt of granulocyte-colony stimulating factor, (G-CSF), pegylated-G-CSF, or granulocyte macrophage-colony stimulating factor (GM-CSF) within 4 weeks of first dose of investigational product. • Planned receipt of peg-G-CSF or GM-CSF after first dose of investigational product. • Pregnant or breast feeding. • Patients of reproductive potential who are not using adequate contraceptive precautions, in the judgment of the investigator. Amgen recommends double barrier contraception is used for all applicable patients enrolled on this study. A double barrier method is defined as two methods of contraception, for example 2 actual barrier methods, or one actual barrier method and one hormonal method. • Patient has known sensitivity to any recombinant E coli-derived product (eg, Infergen®, Neupogen®, Somatropin, and Actimmune). • Previously enrolled into the 20060198 study or another romiplostim study. • Inability to comply with study procedures. • Patient currently is enrolled in or has not yet completed at least 30 days since ending other investigational device or drug study.

Primary outcomes:
measure: Number of Clinically Significant Bleeding Events
timeFrame: Test Treatment Period (Weeks 1-26)
Secondary outcomes:
measure: Annualized Rate of Platelet Transfusion Events
timeFrame: Test Treatment Period (Weeks 1-26)
measure: Annualized Rate of Overall Bleeding Events
timeFrame: Test Treatment Period (Weeks 1-26)
measure: Annualized Rate of Total Platelet Transfusion Units
timeFrame: Test Treatment Period (Weeks 1-26)
measure: Number of Participants With Platelet Hematologic Improvement (HI-P)
timeFrame: Test Treatment Period (Weeks 1-26)
measure: Exposure-adjusted Total Duration of Platelet Hematologic Improvement (HI-P) in the Absence of Platelet Transfusions
timeFrame: Test Treatment Period (Weeks 1-26)
measure: Number of Participants Who Died
timeFrame: From randomization to 58 weeks, the end of study visit or the closest available follow-up information up to 58 weeks from the long term follow-up for those who discontinued the study early, with a data cut-off date of 20 July 2012.
measure: Time to Death
timeFrame: From randomization to 58 weeks, the end of study visit or the closest available follow-up information up to 58 weeks from the long term follow-up for those who discontinued the study early, with a data cut-off date of 20 July 2012.
measure: Kaplan-Meier Estimate of Survival at Month 12
timeFrame: Month 12, with a data cut-off date of 20 July 2012.
measure: Annualized Rate of Patient-reported Bleeding Events
timeFrame: Test Treatment Period (Weeks 1-26)
Other outcomes:
Locations:
Study officials:
affiliation: Amgen
name: MD
role: STUDY_DIRECTOR
References:
citation: Diao G, Zeng D, Hu K, Ibrahim JG. Modeling event count data in the presence of informative dropout with application to bleeding and transfusion events in myelodysplastic syndrome. Stat Med. 2017 Sep 30;36(22):3475-3494. doi: 10.1002/sim.7351. Epub 2017 May 30.
citation: Kantarjian HM, Fenaux P, Sekeres MA, Szer J, Platzbecker U, Kuendgen A, Gaidano G, Wiktor-Jedrzejczak W, Carpenter N, Mehta B, Franklin J, Giagounidis A. Long-term follow-up for up to 5 years on the risk of leukaemic progression in thrombocytopenic patients with lower-risk myelodysplastic syndromes treated with romiplostim or placebo in a randomised double-blind trial. Lancet Haematol. 2018 Mar;5(3):e117-e126. doi: 10.1016/S2352-3026(18)30016-4. Epub 2018 Jan 26.
citation: Giagounidis A, Mufti GJ, Fenaux P, Sekeres MA, Szer J, Platzbecker U, Kuendgen A, Gaidano G, Wiktor-Jedrzejczak W, Hu K, Woodard P, Yang AS, Kantarjian HM. Results of a randomized, double-blind study of romiplostim versus placebo in patients with low/intermediate-1-risk myelodysplastic syndrome and thrombocytopenia. Cancer. 2014 Jun 15;120(12):1838-46. doi: 10.1002/cncr.28663. Epub 2014 Apr 4.
citation: Platzbecker U, Sekeres MA, Kantarjian H, Giagounidis A, Mufti GJ, Jia C, Yang AS, Fenaux P. Relationship of different platelet response criteria and patient outcomes in a romiplostim myelodysplastic syndromes trial. Leukemia. 2014 Dec;28(12):2418-21. doi: 10.1038/leu.2014.253. Epub 2014 Sep 2. No abstract available.
citation: Sekeres MA, Giagounidis A, Kantarjian H, Mufti GJ, Fenaux P, Jia C, Yang AS, Platzbecker U. Development and validation of a model to predict platelet response to romiplostim in patients with lower-risk myelodysplastic syndromes. Br J Haematol. 2014 Nov;167(3):337-45. doi: 10.1111/bjh.13037. Epub 2014 Jul 14.
citation: Diao G, Zeng D, Hu K, Ibrahim JG. Semiparametric frailty models for zero-inflated event count data in the presence of informative dropout. Biometrics. 2019 Dec;75(4):1168-1178. doi: 10.1111/biom.13085. Epub 2019 Sep 2.