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Loos NHC, Bui V, de Jong DH, Lebre MC, Rosing H, Beijnen JH, Schinkel AH. Impact of loperamide on the pharmacokinetics and tissue disposition of ritonavir-boosted oral docetaxel therapy; a preclinical assessment. Cancer Chemother Pharmacol 2024; 94:79-87. [PMID: 38456955 DOI: 10.1007/s00280-024-04662-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/22/2024] [Indexed: 03/09/2024]
Abstract
PURPOSE An oral docetaxel formulation boosted by the Cytochrome P450 (CYP) 3 A inhibitor ritonavir, ModraDoc006/r, is currently under clinical investigation. Based on clinical data, the incidence of grade 1-2 diarrhea is increased with this oral docetaxel formulation compared to the conventional intravenous administration. Loperamide, a frequently used diarrhea inhibitor, could be added to the regimen as symptomatic treatment. However, loperamide is also a substrate of the CYP3A enzyme, which could result in competition between ritonavir and loperamide for this protein. Therefore, we were interested in the impact of coadministered loperamide on the pharmacokinetics of ritonavir-boosted oral docetaxel. METHODS We administered loperamide simultaneously or with an 8-hour delay to humanized CYP3A4 mice (with expression in liver and intestine) receiving oral ritonavir and docetaxel. Concentrations of docetaxel, ritonavir, loperamide and two of its active metabolites were measured. RESULTS The plasma exposure (AUC and Cmax) of docetaxel was not altered during loperamide treatment, nor were the ritonavir plasma pharmacokinetics. However, the hepatic and intestinal dispositions of ritonavir were somewhat changed in the simultaneous, but not 8-hour loperamide treatment groups, possibly due to loperamide-induced delayed drug absorption. The pharmacokinetics of loperamide itself did not seem to be influenced by ritonavir. CONCLUSION These results suggest that delayed loperamide administration can be added to ritonavir-boosted oral docetaxel treatment, without affecting the overall systemic exposure of docetaxel.
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Affiliation(s)
- Nancy H C Loos
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066 CX, The Netherlands
| | - Viët Bui
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066 CX, The Netherlands
| | - Daniëlle H de Jong
- Division of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Maria C Lebre
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066 CX, The Netherlands
| | - Hilde Rosing
- Division of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Jos H Beijnen
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066 CX, The Netherlands
- Division of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Faculty of Science, Department of Pharmaceutical Sciences, Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht University, Utrecht, The Netherlands
| | - Alfred H Schinkel
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066 CX, The Netherlands.
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Loos NHC, Ferreira Martins ML, Rijmers J, de Jong D, Lebre MC, Tibben M, Beijnen JH, Schinkel AH. Interplay of Ritonavir-Boosted Oral Cabazitaxel with the Organic Anion-Transporting Polypeptide (OATP) Uptake Transporters and Carboxylesterase 1 in Mice. Mol Pharm 2024; 21:1952-1964. [PMID: 38423793 DOI: 10.1021/acs.molpharmaceut.3c01205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Intravenously administered chemotherapeutic cabazitaxel is used for palliative treatment of prostate cancer. An oral formulation would be more patient-friendly and reduce the need for hospitalization. We therefore study determinants of the oral pharmacokinetics of cabazitaxel in a ritonavir-boosted setting, which reduces the CYP3A-mediated first-pass metabolism of cabazitaxel. We here assessed the role of organic anion-transporting polypeptides (OATPs) in the disposition of orally boosted cabazitaxel and its active metabolites, using the Oatp1a/b-knockout and the OATP1B1/1B3-transgenic mice. These transporters may substantially affect plasma clearance and hepatic and intestinal drug disposition. The pharmacokinetics of cabazitaxel and DM2 were not significantly affected by Oatp1a/b and OATP1B1/1B3 activity. In contrast, the plasma AUC0-120 min of DM1 in Oatp1a/b-/- was 1.9-fold (p < 0.05) higher than that in wild-type mice, and that of docetaxel was 2.4-fold (p < 0.05) higher. We further observed impaired hepatic uptake and intestinal disposition for DM1 and docetaxel in the Oatp-ablated strains. None of these parameters showed rescue by the OATP1B1 or -1B3 transporters in the humanized mouse strains, suggesting a minimal role of OATP1B1/1B3. Ritonavir itself was also a potent substrate for mOatp1a/b, showing a 2.9-fold (p < 0.0001) increased plasma AUC0-120 min and 3.5-fold (p < 0.0001) decreased liver-to-plasma ratio in Oatp1a/b-/- compared to those in wild-type mice. Furthermore, we observed the tight binding of cabazitaxel and its active metabolites, including docetaxel, to plasma carboxylesterase (Ces1c) in mice, which may complicate the interpretation of pharmacokinetic and pharmacodynamic mouse studies. Collectively, these results will help to further optimize (pre)clinical research into the safety and efficacy of orally applied cabazitaxel.
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Affiliation(s)
- Nancy H C Loos
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | | | - Jamie Rijmers
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Daniëlle de Jong
- Division of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Maria C Lebre
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Matthijs Tibben
- Division of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
| | - Jos H Beijnen
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
- Division of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
- Faculty of Science, Department of Pharmaceutical Sciences, Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, The Netherlands
| | - Alfred H Schinkel
- Division of Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam 1066 CX, The Netherlands
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Loos NHC, Martins MLF, de Jong D, Lebre MC, Tibben M, Beijnen JH, Schinkel AH. Coadministration of ABCB1/P-glycoprotein inhibitor elacridar improves tissue distribution of ritonavir-boosted oral cabazitaxel in mice. Int J Pharm 2024; 650:123708. [PMID: 38135258 DOI: 10.1016/j.ijpharm.2023.123708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023]
Abstract
Developing an oral formulation for the chemotherapeutic cabazitaxel might improve its patient-friendliness, costs, and potentially exposure profile. Cabazitaxel oral availability is restricted by CYP3A-mediated first-pass metabolism, but can be substantially boosted with the CYP3A inhibitor ritonavir. We here tested whether adding the ABCB1/P-glycoprotein inhibitor elacridar to ritonavir-boosted oral cabazitaxel could further improve its tissue exposure using wild-type, CYP3A4-humanized and Abcb1a/b-/- mice. The plasma AUC0-2h of cabazitaxel was increased 2.3- and 1.9-fold in the ritonavir- and ritonavir-plus-elacridar groups of wild-type, and 10.5- and 8.8-fold in CYP3A4-humanized mice. Elacridar coadministration did not influence cabazitaxel plasma exposure. The brain-to-plasma ratio of cabazitaxel was not increased in the ritonavir group, 7.3-fold in the elacridar group and 13.4-fold in the combined booster group in wild-type mice. This was 0.4-, 4.6- and 3.6-fold in CYP3A4-humanized mice, illustrating that Abcb1 limited cabazitaxel brain exposure also during ritonavir boosting. Ritonavir itself was also a potent substrate for the Abcb1 efflux transporter, limiting its oral availability (3.3-fold) and brain penetration (10.6-fold). Both processes were fully reversed by elacridar. The tissue disposition of ritonavir-boosted oral cabazitaxel could thus be markedly enhanced by elacridar coadministration without affecting the plasma exposure. This approach should be verified in selected patient populations.
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Affiliation(s)
- Nancy H C Loos
- The Netherlands Cancer Institute, Division of Pharmacology, Amsterdam, The Netherlands
| | - Margarida L F Martins
- The Netherlands Cancer Institute, Division of Pharmacology, Amsterdam, The Netherlands
| | - Daniëlle de Jong
- The Netherlands Cancer Institute, Division of Pharmacy and Pharmacology, Amsterdam, The Netherlands
| | - Maria C Lebre
- The Netherlands Cancer Institute, Division of Pharmacology, Amsterdam, The Netherlands
| | - Matthijs Tibben
- The Netherlands Cancer Institute, Division of Pharmacy and Pharmacology, Amsterdam, The Netherlands
| | - Jos H Beijnen
- The Netherlands Cancer Institute, Division of Pharmacology, Amsterdam, The Netherlands; The Netherlands Cancer Institute, Division of Pharmacy and Pharmacology, Amsterdam, The Netherlands; Utrecht University, Faculty of Science, Department of Pharmaceutical Sciences, Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht, The Netherlands
| | - Alfred H Schinkel
- The Netherlands Cancer Institute, Division of Pharmacology, Amsterdam, The Netherlands.
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Damoiseaux D, Amant F, Beijnen JH, Barnett S, Veal GJ, Huitema ADR, Dorlo TPC. Physiologically-based pharmacokinetic model to predict doxorubicin and paclitaxel exposure in infants through breast milk. CPT Pharmacometrics Syst Pharmacol 2023; 12:1931-1944. [PMID: 37798909 PMCID: PMC10725259 DOI: 10.1002/psp4.13043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/11/2023] [Accepted: 08/29/2023] [Indexed: 10/07/2023] Open
Abstract
Limited information is available concerning infant exposure and safety when breastfed by mothers receiving chemotherapy. Whereas defining distribution to breast milk is important to infer drug exposure, infant pharmacokinetics also determine to what extent the infant will be exposed to potential toxic effects. We aimed to assess the impact of chemotherapy containing breast milk on infants by predicting systemic and local (intestinal) exposure of paclitaxel and doxorubicin in infants through breast milk using a physiologically-based pharmacokinetic (PBPK) approach. Whole-body PBPK models of i.v. paclitaxel and doxorubicin were extended from the literature, with an oral absorption component to enable predictions in infants receiving paclitaxel or doxorubicin-containing breast milk. For safety considerations, worst-case scenarios were explored. Finally, paclitaxel and doxorubicin exposures in plasma and intestinal tissue of infants following feeding of breast milk from paclitaxel- or doxorubicin-treated mothers were simulated and breast milk discarding strategies were evaluated. The upper 95th percentile of the predicted peak concentrations in peripheral venous blood were 3.48 and 0.74 nM (0.4%-1.7% and 0.1%-1.8% of on-treatment) for paclitaxel and doxorubicin, respectively. Intestinal exposure reached peak concentrations of 1.0 and 140 μM for paclitaxel and doxorubicin, respectively. Discarding breast milk for the first 3 days after maternal chemotherapy administration reduced systemic and tissue exposures even further, to over 90% and 80% for paclitaxel and doxorubicin, respectively. PBPK simulations of chemotherapy exposure in infants after breastfeeding with chemotherapy containing breast milk suggest that particularly local gastrointestinal adverse events should be monitored, whereas systemic adverse events are not expected.
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Affiliation(s)
- David Damoiseaux
- Department of Pharmacy and PharmacologyThe Netherlands Cancer InstituteAmsterdamThe Netherlands
| | - Frédéric Amant
- Department of GynecologyThe Netherlands Cancer InstituteAmsterdamThe Netherlands
- Gynecologic OncologyUZ LeuvenLeuvenBelgium
| | - Jos H. Beijnen
- Department of Pharmacy and PharmacologyThe Netherlands Cancer InstituteAmsterdamThe Netherlands
- Utrecht Institute of Pharmaceutical SciencesUtrecht UniversityUtrechtThe Netherlands
| | - Shelby Barnett
- Newcastle University Centre for CancerNewcastle UniversityNewcastle upon TyneUK
| | - Gareth J. Veal
- Newcastle University Centre for CancerNewcastle UniversityNewcastle upon TyneUK
| | - Alwin D. R. Huitema
- Department of Pharmacy and PharmacologyThe Netherlands Cancer InstituteAmsterdamThe Netherlands
- Department of PharmacologyPrincess Máxima Center for Pediatric OncologyUtrechtThe Netherlands
- Department of Clinical Pharmacy, University Medical Center UtrechtUtrecht UniversityUtrechtThe Netherlands
| | - Thomas P. C. Dorlo
- Department of Pharmacy and PharmacologyThe Netherlands Cancer InstituteAmsterdamThe Netherlands
- Department of PharmacyUppsala UniversityUppsalaSweden
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van Eijk M, Yu H, Sawicki E, de Weger VA, Nuijen B, Dorlo TPC, Beijnen JH, Huitema ADR. Development of a population pharmacokinetic/pharmacodynamic model for various oral paclitaxel formulations co-administered with ritonavir and thrombospondin-1 based on data from early phase clinical studies. Cancer Chemother Pharmacol 2022; 90:71-82. [PMID: 35799067 PMCID: PMC9300539 DOI: 10.1007/s00280-022-04445-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 06/04/2022] [Indexed: 11/21/2022]
Abstract
Purpose Orally administered paclitaxel offers increased patient convenience while providing a method to prolong exposure without long continuous, or repeated, intravenous infusions. The oral bioavailability of paclitaxel is improved through co-administration with ritonavir and application of a suitable pharmaceutical formulation, which addresses the dissolution-limited absorption of paclitaxel. We aimed to characterize the pharmacokinetics of different paclitaxel formulations, co-administered with ritonavir, and to investigate a pharmacodynamic relationship between low-dose metronomic (LDM) treatment with oral paclitaxel and the anti-angiogenic marker thrombospondin-1 (TSP-1). Methods Fifty-eight patients treated with different oral paclitaxel formulations were included for pharmacokinetic analysis. Pharmacodynamic data was available for 36 patients. All population pharmacokinetic/pharmacodynamic modelling was performed using non-linear mixed-effects modelling. Results A pharmacokinetic model consisting of gut, liver, central, and peripheral compartments was developed for paclitaxel. The gastrointestinal absorption rate was modelled with a Weibull function. Relative gut bioavailabilities of the tablet and capsule formulations, as fractions of the gut bioavailability of the drinking solution, were estimated to be 0.97 (95%CI: 0.67–1.33) and 0.46 (95%CI: 0.34–0.61), respectively. The pharmacokinetic/pharmacodynamic relationship between paclitaxel and TSP-1 was modelled using a turnover model with paclitaxel plasma concentrations driving an increase in TSP-1 formation rate following an Emax relationship with an EC50 of 284 ng/mL (95%CI: 122–724). Conclusion The developed pharmacokinetic model adequately described the paclitaxel plasma concentrations for the different oral formulations co-administered with ritonavir. This model, and the established pharmacokinetic/pharmacodynamic relationship with TSP-1, may facilitate future development of oral paclitaxel. Supplementary Information The online version contains supplementary material available at 10.1007/s00280-022-04445-z.
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Affiliation(s)
- Maarten van Eijk
- Department of Pharmacy & Pharmacology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.
| | - Huixin Yu
- Department of Pharmacy & Pharmacology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Emilia Sawicki
- Department of Pharmacy & Pharmacology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.,Modra Pharmaceuticals Holding B.V., Amsterdam, The Netherlands
| | - Vincent A de Weger
- Department of Clinical Pharmacology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands
| | - Bastiaan Nuijen
- Department of Pharmacy & Pharmacology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Thomas P C Dorlo
- Department of Pharmacy & Pharmacology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Jos H Beijnen
- Department of Pharmacy & Pharmacology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.,Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Alwin D R Huitema
- Department of Pharmacy & Pharmacology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.,Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Pharmacology, Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
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