Trial reportCancer chemotherapy and pharmacology2021
Time-dependent population PK models of single-agent atezolizumab in patients with cancer.
Trial report in Cancer chemotherapy and pharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
What it found
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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
20 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.
- Pooled it
- A Randomized Phase II Study of Combination Atezolizumab and Varlilumab (CDX-1127) with or without Cobimetinib in Previously Treated Unresectable Biliary Tract Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026Trial
- Sacituzumab Govitecan Population Pharmacokinetics: Updated Analyses Using HR+/HER2- Metastatic Breast Cancer Data From the Phase 3 TROPiCS-02 Trial.Clinical and translational science · 2025Trial
- Population Pharmacokinetics and Exposure-Response of Subcutaneous Atezolizumab in Patients With Non-Small Cell Lung Cancer.CPT: pharmacometrics & systems pharmacology · 2025Trial
- Population Pharmacokinetics of Sacituzumab Govitecan in Patients with Metastatic Triple-Negative Breast Cancer and Other Solid Tumors.Clinical pharmacokinetics · 2024Trial
- Albumin Levels Are Predictive of Cachexia-Induced Time-Dependent Clearance of Therapeutic Antibodies: A Physiologically Based Pharmacokinetic Model of Durvalumab.CPT: pharmacometrics & systems pharmacology · 2026Article
- Exposure-response relationship of sintilimab in advanced gastric cancer: insights from time-dependent pharmacokinetics and biomarker integration for precision immunotherapy.Frontiers in pharmacology · 2026Review
- Eco Friendly and Budget Smart: An Economic and Environmental Evaluation of Alternative PD-1 and PD-L1 Inhibitor Dosing Regimens.PharmacoEconomics · 2025Article
- Sex differences in hepatic enzymes and transporters involved in pharmacokinetics.Liver research (Beijing, China) · 2025Review
- A Model-Based Approach to Evaluate Anti-Drug Antibody Impact on Drug Exposure With Biologics: A Case Example With the CD3 T-Cell Bispecific Cibisatamab.CPT: pharmacometrics & systems pharmacology · 2025Article
- Using Pharmacokinetic and Pharmacodynamic Analysis to Optimize the Dosing Regimens of Fanastomig (EMB-02) in Patients With Advanced Solid Tumors.CPT: pharmacometrics & systems pharmacology · 2025Article
- Population pharmacokinetics of imetelstat, a first-in-class oligonucleotide telomerase inhibitor.CPT: pharmacometrics & systems pharmacology · 2024Article
- Population pharmacokinetics of adebrelimab - Support of alternative flat dose regimen in extensive-stage small-cell lung cancer.CPT: pharmacometrics & systems pharmacology · 2024Article
- Antibody Drug Clearance: An Underexplored Marker of Outcomes with Checkpoint Inhibitors.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024Review
- Killing a fly with a sledgehammer: Atezolizumab exposure in real-world lung cancer patients.CPT: pharmacometrics & systems pharmacology · 2023Observational
- In Silico Re-Optimization of Atezolizumab Dosing Using Population Pharmacokinetic Simulation and Exposure-Response Simulation.Journal of clinical pharmacology · 2023Article
- Model-based population pharmacokinetic analysis of tislelizumab in patients with advanced tumors.CPT: pharmacometrics & systems pharmacology · 2023Article
- Article
- Evaluation of atezolizumab immunogenicity: Clinical pharmacology (part 1).Clinical and translational science · 2022Article
- Evaluation of atezolizumab immunogenicity: Efficacy and safety (Part 2).Clinical and translational science · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe time-varying clearance (CL) of the PD-L1 inhibitor atezolizumab was assessed on a population of 1519 cancer patients (primarily with non-small-cell lung cancer or metastatic urothelial carcinoma) from three clinical studies.
methodsThe first step was to identify the baseline covariates affecting atezolizumab CL without including time-varying components (stationary covariate model). Two time-varying models were then investigated: (1) a model allowing baseline covariates to vary over time (time-varying covariate model), (2) a model with empirical time-varying Emax CL function.
resultsThe final stationary covariate model included main effects of body weight, albumin levels, tumor size, anti-drug antibodies (ADA) and gender on atezolizumab CL. Both time-varying models resulted in a clear improvement of the data fit and visual predictive checks over the stationary model. The time-varying covariate model provided the best fit of the data. In this model, the main driver for change in CL over time was variations in albumin level with an increase in serum albumin (improvement in a patient's status) mirroring a decrease in CL. Time-varying ADAs had a small impact (9% increase in CL). None of the covariates impacted atezolizumab CL by more than ± 30% from median. The estimated maximum decrease in CL with time was 22% with the Emax model.
conclusionThe overall impact of covariates on atezolizumab CL did not warrant any change in atezolizumab dosing recommendations. The results support the hypothesis that variation in atezolizumab CL over time is associated with patients' disease status, as shown with other checkpoint inhibitors.
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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.