Trial reportThe oncologist2024
Model-informed drug development of envafolimab, a subcutaneously injectable PD-L1 antibody, in patients with advanced solid tumors.
Trial report in The oncologist, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 4 registered trials, which are not on this map. Cited by 4 papers.
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.
A Phase I, Open Label, Dose Escalation Study of The Safety and Pharmacokinetics of Anti-PD-L1 Monoclonal Antibody KN035 Administered in Subcutaneous Injection as A Single Agent to Subjects With Locally Advanced or Metastatic Solid Tumors
A Phase I, Single Arm, Multiple Dose, Dose Escalation and Dose Expansion Study to Evaluate the Safety, Tolerability and Pharmacokinetics of KN035 Administered in Subcutaneous Injection as a Single Agent to Subjects With Advanced Solid Tumors
A Phase I, Open Label, Dose Escalation Study of The Safety and Pharmacokinetics of Anti-PD-L1 Monoclonal Antibody KN035 Administered in Subcutaneous Injection as A Single Agent to Japanese Subjects With Locally Advanced or Metastatic Solid Tumors
Study of KN035 as Monotherapy in Patients With Advanced Mismatched Repair Deficient (dMMR) or Microsatellite Instability-High (MSI-H) Solid Tumors
Who cites it
4 citing papers in PubMed.
- Nanobodies Open New Avenues in Cancer Treatment: From Molecular Engineering to Therapeutic Platforms.Cell biochemistry and biophysics · 2026Review
- Envafolimab - novel anti-PD-1/PD-L1 antibody in cancer treatment.Frontiers in immunology · 2026Review
- Adverse events induced by the subcutaneous HER2-targeted antibody-drug conjugate JSKN033 in a male patient with breast cancer: A case report.Oncology letters · 2026Article
- Beyond monoclonal antibodies: constraints and the case for alternative PD-1/PD-L1-targeting formats.Frontiers in immunology · 2025Review
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.
Funding
Abstract
BACKGROUND AND
objectivesEnvafolimab is the first and only globally approved subcutaneously injectable PD-L1 antibody for the treatment of instability-high (MSI-H) or DNA mismatch repair deficient (dMMR) advanced solid tumors in adults, including those with advanced colorectal cancer that has progressed after treatment with a fluoropyrimidine, oxaliplatin, and irinotecan. The aim of this investigation was to examine the pharmacokinetic and exposure-response (E-R) profile of envafolimab in patients with solid tumors to support the approval of fixed and alternative dose regimens.
methodsIn this study, a population pharmacokinetic (PopPK) modeling approach will be employed to quantitatively evaluate intrinsic and extrinsic covariates. Additionally, PopPK-estimated exposure parameters were used to evaluate E-R relationship for safety and efficacy to provide a theoretical basis for recommending optimal treatment regimens. Simulations were performed on the dosing regimens of body weight-based regimen of 2.50 mg/kg QW, fixed dose 150 mg QW, and 300 mg Q2W for the selection of alternative dosing regimens. Data from 4 clinical studies (NCT02827968, NCT03101488, NCT03248843, and NCT03667170) were utilized.
resultsThe PopPK dataset comprised 182 patients with 1810 evaluable envafolimab concentration records. Finally, a one-compartment model incorporating first-order absorption, first-order linear elimination, and time-dependent elimination according to an Emax function was found to accurately describe the concentration-time data of envafolimab in patients with advanced solid tumors. Creatinine clearance and country were identified as statistically significant factors affecting clearance, but had limited clinical significance. A relative flat exposure-response relationship was observed between early measures of safety and efficacy to verify that no dose adjustment is required. Simulation results indicated that 2.50 mg/kg QW, 150 mg QW, and 300 mg Q2W regimen yield similar steady-state exposure.
conclusionsNo statistically significant difference was observed between weight-based and fixed dose regimens. Model-based simulation supports the adoption of a 150 mg weekly or 300 mg biweekly dosing regimen of envafolimab in the solid tumor population, as these schedules effectively balance survival benefits and safety risks.
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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.