Cited by 100Cancer therapeutics and mechanismsNanoparticle-Based Drug DeliveryCancer Treatment and Pharmacology

Phase I study of nanoliposomal irinotecan (PEP02) in advanced solid tumor patients

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Chang, T. C., Shiah, H. S., Yang, C. H., Yeh, K. H., Cheng, A. L., Shen, B. N., Wang, Y. W., Yeh, C. G. +3 more·2015·Cancer Chemotherapy and Pharmacology

Abstract

PURPOSE: To define the dose-limiting toxicity (DLT), maximum tolerated dose (MTD) and pharmacokinetics (PK) of PEP02, a novel liposome-encapsulated irinotecan, in patients with advanced refractory solid tumors. METHODS: Patients were enrolled in cohorts of one to three to receive escalating dose of PEP02 in a phase I trial. PEP02, from 60 to 180 mg/m(2), was given as a 90-min intravenous infusion, every 3 weeks. RESULTS: A total of 11 patients were enrolled into three dose levels: 60 (one patient), 120 (six patients) and 180 mg/m(2) (four patients). DLT was observed in three patients, one at 120 mg/m(2) (grade 3 catheter-related infection) and two at 180 mg/m(2) (grade 4 neutropenia lasting for >3 days in one, grade 4 hematological toxicities and grade 4 diarrhea in the other). MTD was determined as 120 mg/m(2). Comparing with those after free-form irinotecan in the literature, the dose-normalized PK of SN-38 (the active metabolite) after PEP02 was characterized by lower C max, prolonged terminal half-life and higher AUC but with significant inter-individual variation. One patient who died of treatment-related toxicity had significantly higher C max and AUC levels of SN-38 than those of the other three patients at 180 mg/m(2). Post hoc pharmacogenetic study showed that the patient had a combined heterozygosity genotype of UGT1A1*6/*28. Two patients had objective tumor response. CONCLUSIONS: PEP02 apparently modified the PK parameters of irinotecan and SN-38 by liposome encapsulation. The MTD of PEP02 monotherapy at 3-week interval is 120 mg/m(2), which will be the recommended dose for future studies.

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  • Non-liposomal nanoparticle systems that have been approved for cancer treatment include Abraxane and NBTXR3 Hensify.

    “Non-liposomal nanoparticle systems that have been approved for cancer treatment include Abraxane and NBTXR3 Hensify.348”

    From Smart nanoparticles for cancer therapy (2023) · cites this paper as [348]

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Authors
Chang, T. C., Shiah, H. S., Yang, C. H., Yeh, K. H., Cheng, A. L., Shen, B. N., Wang, Y. W., Yeh, C. G., Chiang, N. J., Chang, J. Y., & Chen, L. T.
Affiliations
  • Chang Gung Memorial Hospital (TW)
  • Taipei Medical University Hospital (TW)
  • National Taiwan University Hospital (TW)
  • PharmaEngine, Inc. (Taiwan) (TW)
  • Kaohsiung Medical University (TW)
  • National Health Research Institutes (TW)
Corresponding author
  • Chang, J. Y.
  • Chen, L. T.
Venue
Cancer Chemotherapy and Pharmacology
Published
2015-01-11
Volume
75
Issue
3
Pages
579-586
ISSN
  • 0344-5704 (ISSN-L)
  • 1432-0843
OpenAlex
W2041354095
Cited by
100
References
21
Citations by year
2026: 3 · 2025: 7 · 2024: 7 · 2023: 6 · 2022: 9 · 2021: 9 · 2020: 13 · 2019: 7 · 2018: 5 · 2017: 15 · 2016: 15 · 2015: 3 · 2013: 1
FWCI
5.50
Type
journal article
Language
en
Open access
Locations
  • Cancer Chemotherapy and Pharmacology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cancer therapeutics and mechanisms
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Health Sciences › Medicine › Oncology › Cancer Treatment and Pharmacology
Keywords
irinotecan, nanoliposomal irinotecan, dose-limiting toxicity, maximum tolerated dose, advanced solid tumors, refractory cancer, UGT1A1 genotype, pharmacogenetics, liposome encapsulation, neutropenia, diarrhea, hematologic toxicity
MeSH terms
Irinotecan, UGT1A1 Enzyme, Adult, Antineoplastic Agents, Phytogenic, Camptothecin, Dose-Response Relationship, Drug, Female, Genotype, Half-Life, Humans, Infusions, Intravenous, Liposomes, Male, Middle Aged, Neoplasms, Pharmacogenetics, Glucuronosyltransferase, Treatment Outcome, Area Under Curve, Maximum Tolerated Dose, Nanoparticles

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