Isolated Chemotherapy-induced Thrombocytopenia | Study of Romiplostim for Chemotherapy Induced Thrombocytopenia

Isolated Chemotherapy-induced Thrombocytopenia research study

What is the primary objective of this study?

This study is to determine if using weekly romiplostim injections will improve the patient's platelet count more effectively than simply waiting for the platelets to improve on its own, and if romiplostim will also allow the patient to receive at least 2 further cycles of chemotherapy without thrombocytopenia.

Who is eligible to participate?

Inclusion Criteria: 1. Patients (18 years of age or greater) with active non-hematological cancer: A. The patients have previously received a chemotherapy regimen including one or more of the following agents: 1. Nucleoside Analogue, including gemcitabine and fluorouracil 2. Carboplatin or cisplatin 3. Anthracycline 4. Alkylating agent 5. Other chemotherapy agents with thrombocytopenia as known common toxicity. 2. Patients who have not had any cytotoxic chemotherapy within 14 days of beginning the study. 3. Thrombocytopenia:. A. Defined as platelet count <100,000/mcL. B. The patient will have had at least 2 CBCs with platelet counts <100,000/mcL separated by at least 4 weeks, and no platelet count ≥100,000/mcL in the prior 6 week period, despite (1) delay, or (2) modification of chemotherapeutic regimen. C. A platelet count of >100,000/mcL, that follows within 7 days of a platelet transfusion, will not make the patient ineligible, as long as one or more subsequent platelet counts confirms thrombocytopenia (<100,000/mcL). D. Patients have undergone bone marrow aspirate and biopsy or peripheral blood test in the prior 3 months without evidence of leukemia or myelodysplasia by fluorescent in situ-hybridization (FISH) E. Dysplastic changes, based on morphology only, will not exclude the patient if FISH panel for MDS is normal. 4.KPS ≥ 50 or ECOG performance status ≤2 . 5.Ability to provide written informed consent. Exclusion Criteria: 1. Patients with history of hematologic malignancies, including leukemia, myeloma, myeloproliferative disease, lymphoma, or myelodysplastic diseases. 2. Patients with known bone metastases, with evidence of corticol bone damage/lytic lesions/blastic lesions on standard imaging studies (CT/MR) 3. Anemia (Hgb <8.0 gm/dl) or leukopenia (absolute neutrophil count (ANC) <1,000/mcL). Use of red cell transfusions, erythropoietin, or G-CSF, as ordered by the managing oncology service, is acceptable and does not preclude participation. 4. Patients with underlying liver disease, such as cirrhosis or chronic hepatitis, and do not have primary or metastatic cancer in the liver will be excluded if ALT/AST >3X ULN or Total Bili >3X ULN. In the presence of primary or metastatic liver cancer, patients will be excluded if ALT/AST >5X ULN or Total Bili >5X ULN 5. Patients with a history of a prior symptomatic venous thrombotic event such, as DVT or pulmonary embolism and symptomatic arterial thrombotic events such as myocardial infarction, ischemic cerebral vascular accident or transient ischemic attack will be ineligible if they have not tolerated anticoagulation therapy. If patients remain on anticoagulation, or have completed the prescribed course of anticoagulation, they will be eligible for enrollment. A venous thrombotic event associated with a central venous catheter will not make the patient ineligible. 6. Serious concomitant medical condition that could interfere with the conduct of the clinical trial, such as unstable angina, renal failure requiring hemodialysis, or active infection requiring IV antibiotics 7. Pregnant women/lactating mothers 8. Patients unwilling to use contraception.

Which medical condition, disease, disorder, syndrome, illness, or injury is researched?

Isolated Chemotherapy-induced Thrombocytopenia

Study Interventions

Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.


Study Arms

Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.

RomiplostimAll patients will begin weekly romiplostim at 2 mcg/kg, subcutaneously. The romiplostim dose will be titrated on weekly CBC/platelet counts. For titration purposes, the target platelet count is 150,000-200,000/mcL. Treatment can be held up to 16 days if a patient develops an intercurrent medical illness or symptom that is unrelated to study drug therapy. Treatment may be held up to 20 days if the patient unavailable for non- medical reasons, such as vacation or travel.

Study Status

Active, not recruiting

Start Date: January 30, 2014

Completed Date: January 2020

Phase: Phase 2

Type: Interventional


Primary Outcome: Achievement of platelet counts of ≥ 100,000/mcL

Secondary Outcome: Assessment of potential toxicity

Study sponsors, principal investigator, and references

Principal Investigator: Gerald Soff, MD

Lead Sponsor: Memorial Sloan Kettering Cancer Center

Collaborator: Amgen

More information:

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