ArticlePharmaceutical research2013
Pharmacokinetic and pharmacodynamic modeling of romiplostim in animals.
Article in Pharmaceutical research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed, 31 citations in OpenAlex.
- Pharmacokinetics, Safety, and Pharmacodynamics of Romiplostim in Chinese Subjects With Immune Thrombocytopenia: A Phase I/II Trial.Clinical pharmacology in drug development · 2022Trial
- Assessing serum thrombopoietin for enhanced diagnosis of ITP, AA, and MDS using machine learning: A retrospective cohort study.Annals of hematology · 2025Article
- Mechanism-Based Pharmacokinetic/Pharmacodynamic Modeling for Iron-Regulated Hematopoietic Stem and Progenitor Cells' Commitment toward Erythroid and Megakaryocytic Lineages.ACS pharmacology & translational science · 2025Article
- Novel Combination of Erythropoietin and Romiplostim to Treat Chemotherapy-Induced Anemia and Thrombocytopenia via Pharmacodynamic Interaction on Hematopoietic Stem and Progenitor Cells.ACS pharmacology & translational science · 2023Article
- Scaling Pharmacodynamics from Rats to Humans to Support Erythropoietin and Romiplostim Combination Therapy to Treat Erythropoietin-Resistant Anemia.Pharmaceutics · 2023Article
- A Novel Combination Therapy of Erythropoietin and Thrombopoietin to Treat Erythropoietin-Resistance anemia.Pharmaceutical research · 2022Article
- Development of Biomarkers for Radiation Biodosimetry and Medical Countermeasures Research: Current Status, Utility, and Regulatory Pathways.Radiation research · 2022Article
- Development of Biomarkers for Radiation Biodosimetry and Medical Countermeasures Research: Current Status, Utility, and Regulatory Pathways.Radiation research · 2022Article
- A Review of Romiplostim Mechanism of Action and Clinical Applicability.Drug design, development and therapy · 2021Review
- Repurposing Pharmaceuticals Previously Approved by Regulatory Agencies to Medically Counter Injuries Arising Either Early or Late Following Radiation Exposure.Frontiers in pharmacology · 2021Review
- Application of Pharmacokinetic-Pharmacodynamic Modeling in Drug Delivery: Development and Challenges.Frontiers in pharmacology · 2020Review
- Development of a sandwich enzyme-linked immunosorbent assay for dTMP-GH fusion protein by rational immunogen selection.AMB Express · 2017Article
- A cell-level model of pharmacodynamics-mediated drug disposition.Journal of pharmacokinetics and pharmacodynamics · 2016Article
- Development of Romiplostim for Treatment of Primary Immune Thrombocytopenia From a Pharmacokinetic and Pharmacodynamic Perspective.Clinical pharmacokinetics · 2016Review
- Pharmacodynamic model for chemoradiotherapy-induced thrombocytopenia in mice.Journal of pharmacokinetics and pharmacodynamics · 2015Article
- Modeling of delays in PKPD: classical approaches and a tutorial for delay differential equations.Journal of pharmacokinetics and pharmacodynamics · 2014Article
- Romiplostim dose-response in patients with myelodysplastic syndromes.British journal of clinical pharmacology · 2013Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeRomiplostim is a novel thrombopoiesis-stimulating peptibody that targets the thrombopoietin c-Mpl receptor, resulting in increased platelet production. The pharmacodynamic-mediated disposition (PDMDD) and its stimulatory effect on platelet production in Sprague-Dawley rats, rhesus monkeys, and cynomolgus monkeys following IV bolus and SC administration at various dose levels were determined.
methodsThe pharmacokinetic (PK) profile was described by a PDMDD model that accounts for romiplostim binding to the c-Mpl receptor. The PD model contained a series of aging compartments for precursor cells in bone marrow and platelets. The stimulatory function was described by an on-and-off function operating on the fractional receptor occupancy (RO). The threshold effect, RO(thr), and K(D) parameters were determinants of drug potency, whereas S(max) reflected drug efficacy.
resultsThe model implicated that receptor-mediated clearance was negligible. RO(thr) estimated occupancies were 0.288, 0.385, 0.771 for rats, rhesus, and cynomolgus monkeys, respectively. The analogous estimated values of K(D) were 4.05, 2320, and 429 ng/mL, implying that romiplostim was much more potent in rats, which was confirmed by a dose-response (ratio of peak platelet count to baseline) relationship.
conclusionsThe model adequately described romiplostim serum concentrations and platelet counts in rats, rhesus monkeys, and cynomolgus monkeys, and quantified linear clearance, PDMDD, and potency of romiplostim.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.