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1.
Mar Drugs ; 22(4)2024 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-38667795

RESUMO

This open-label, two-part, phase Ib drug-drug interaction study investigated whether the pharmacokinetic (PK) and safety profiles of lurbinectedin (LRB), a marine-derived drug, are affected by co-administration of itraconazole (ITZ), a strong CYP3A4 inhibitor, in adult patients with advanced solid tumors. In Part A, three patients were sequentially assigned to Sequence 1 (LRB 0.8 mg/m2, 1-h intravenous [IV] + ITZ 200 mg/day oral in Cycle 1 [C1] and LRB alone 3.2 mg/m2, 1 h, IV in Cycle 2 [C2]). In Part B, 11 patients were randomized (1:1) to receive either Sequence 1 (LRB at 0.9 mg/m2 + ITZ in C1 and LRB alone in C2) or Sequence 2 (LRB alone in C1 and LRB + ITZ in C2). Eleven patients were evaluable for PK analysis: three in Part A and eight in Part B (four per sequence). The systemic total exposure of LRB increased with ITZ co-administration: 15% for Cmax, area under the curve (AUC) 2.4-fold for AUC0-t and 2.7-fold for AUC0-∞. Co-administration with ITZ produced statistically significant modifications in the unbound plasma LRB PK parameters. The LRB safety profile was consistent with the toxicities described in previous studies. Co-administration with multiple doses of ITZ significantly altered LRB systemic exposure. Hence, to avoid LRB overexposure when co-administered with strong CYP3A4 inhibitors, an LRB dose reduction proportional to CL reduction should be applied.


Assuntos
Carbolinas , Inibidores do Citocromo P-450 CYP3A , Interações Medicamentosas , Compostos Heterocíclicos de 4 ou mais Anéis , Itraconazol , Neoplasias , Humanos , Itraconazol/farmacocinética , Itraconazol/administração & dosagem , Itraconazol/efeitos adversos , Masculino , Pessoa de Meia-Idade , Feminino , Idoso , Neoplasias/tratamento farmacológico , Compostos Heterocíclicos de 4 ou mais Anéis/farmacocinética , Compostos Heterocíclicos de 4 ou mais Anéis/administração & dosagem , Compostos Heterocíclicos de 4 ou mais Anéis/efeitos adversos , Inibidores do Citocromo P-450 CYP3A/administração & dosagem , Inibidores do Citocromo P-450 CYP3A/farmacocinética , Inibidores do Citocromo P-450 CYP3A/farmacologia , Carbolinas/farmacocinética , Carbolinas/administração & dosagem , Carbolinas/efeitos adversos , Adulto , Compostos Heterocíclicos com 3 Anéis/farmacocinética , Compostos Heterocíclicos com 3 Anéis/administração & dosagem , Compostos Heterocíclicos com 3 Anéis/efeitos adversos , Área Sob a Curva , Antineoplásicos/farmacocinética , Antineoplásicos/efeitos adversos , Antineoplásicos/administração & dosagem
2.
Clin Pharmacol Drug Dev ; 13(5): 517-533, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38423992

RESUMO

Avacopan, a complement 5a receptor (C5aR) antagonist approved for treating severe active antineutrophil cytoplasmic autoantibody (ANCA)-associated vasculitis, was evaluated in 2 clinical drug-drug interaction studies. The studies assessed the impact of avacopan on the pharmacokinetics (PK) of CYP3A4 substrates midazolam and simvastatin and CYP2C9 substrate celecoxib, and the influence of CYP3A4 inhibitor itraconazole and inducer rifampin on the PKs of avacopan. The results indicated that twice-daily oral administration of 30 mg of avacopan increased the area under the curve (AUC) of midazolam by 1.81-fold and celecoxib by 1.15-fold when administered without food, and twice-daily oral administration of 30 or 60 mg of avacopan increased the AUC of simvastatin by approximately 2.6-3.5-fold and the AUC of the active metabolite ß-hydroxy-simvastatin acid by approximately 1.4-1.7-fold when co-administered with food. Furthermore, the AUC of avacopan increased by approximately 2.19-fold when co-administered with itraconazole and decreased by approximately 13.5-fold when co-administered with rifampin. These findings provide critical insights into the potential drug-drug interactions involving avacopan, which could have significant implications for patient care and treatment planning. (NCT06207682).


Assuntos
Área Sob a Curva , Citocromo P-450 CYP2C9 , Inibidores do Citocromo P-450 CYP3A , Citocromo P-450 CYP3A , Interações Medicamentosas , Voluntários Saudáveis , Itraconazol , Midazolam , Rifampina , Sinvastatina , Humanos , Masculino , Adulto , Citocromo P-450 CYP3A/metabolismo , Citocromo P-450 CYP2C9/metabolismo , Rifampina/farmacologia , Rifampina/administração & dosagem , Rifampina/farmacocinética , Itraconazol/farmacologia , Itraconazol/administração & dosagem , Itraconazol/farmacocinética , Sinvastatina/farmacocinética , Sinvastatina/administração & dosagem , Sinvastatina/efeitos adversos , Feminino , Adulto Jovem , Inibidores do Citocromo P-450 CYP3A/farmacologia , Inibidores do Citocromo P-450 CYP3A/administração & dosagem , Inibidores do Citocromo P-450 CYP3A/farmacocinética , Midazolam/farmacocinética , Midazolam/administração & dosagem , Interações Alimento-Droga , Administração Oral , Pessoa de Meia-Idade
3.
Expert Opin Drug Metab Toxicol ; 19(9): 653-664, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37811634

RESUMO

BACKGROUND: Limertinib is a novel mutant-selective and irreversible inhibitor of the epidermal growth factor receptor under development. A phase 1 open, two-period, single-sequence, self-controlled, two-part study was initiated to characterize the effects of a strong CYP3A4 inducer (rifampin) or inhibitor (itraconazole) on the pharmacokinetics of limertinib. RESEARCH DESIGN AND METHODS: Twenty-four healthy subjects in each part received a single dose of limertinib alone (160 mg, Part A; 80 mg, Part B) and with multiple doses of rifampin 600 mg once daily (Part A) or itraconazole 200 mg twice daily (Part B). RESULTS: Coadministration of rifampin decreased exposure (area under the plasma concentration-time curve from time 0 to infinity, AUC0-inf) of limertinib and its active metabolite CCB4580030 by 87.86% (geometric least-squares mean [GLSM] ratio, 12.14%; 90% confidence interval [CI], 9.89-14.92) and 66.82% (GLSM ratio, 33.18%; 90% CI, 27.72-39.72), respectively. Coadministration of itraconazole increased the AUC0-inf of limertinib by 289.8% (GLSM ratio, 389.8%; 90% CI, 334.07-454.82), but decreased that of CCB4580030 by 35.96% (GLSM ratio, 64.04%; 90% CI, 50.78-80.77). CONCLUSIONS: Our study demonstrates that the concomitant use of limertinib with strong CYP3A inducers or inhibitors is not recommended. A single dose of limertinib, administered with or without rifampin or itraconazole, is generally safe and well tolerated in healthy Chinese subjects. CLINICAL TRIAL REGISTRATION: www.clinicaltrials.gov identifier is NCT05631678.


Assuntos
Interações Medicamentosas , Receptores ErbB , Itraconazol , Inibidores de Proteínas Quinases , Rifampina , Humanos , Área Sob a Curva , Citocromo P-450 CYP3A/genética , Citocromo P-450 CYP3A/metabolismo , Indutores do Citocromo P-450 CYP3A/efeitos adversos , Indutores do Citocromo P-450 CYP3A/farmacologia , Inibidores do Citocromo P-450 CYP3A/efeitos adversos , Inibidores do Citocromo P-450 CYP3A/farmacologia , População do Leste Asiático , Receptores ErbB/antagonistas & inibidores , Receptores ErbB/metabolismo , Voluntários Saudáveis , Itraconazol/administração & dosagem , Itraconazol/efeitos adversos , Itraconazol/farmacologia , Inibidores de Proteínas Quinases/administração & dosagem , Inibidores de Proteínas Quinases/efeitos adversos , Inibidores de Proteínas Quinases/farmacocinética , Rifampina/administração & dosagem , Rifampina/efeitos adversos , Rifampina/farmacologia
4.
Eur J Drug Metab Pharmacokinet ; 47(1): 91-103, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34716565

RESUMO

BACKGROUND AND OBJECTIVE: Increased glycine availability at the synaptic cleft may enhance N-methyl-D-aspartate receptor signalling and provide a promising therapeutic strategy for cognitive impairment associated with schizophrenia. These studies aimed to assess the pharmacokinetics of BI 425809, a potent glycine-transporter-1 inhibitor, when co-administered with a strong cytochrome P450 3A4 (CYP3A4) inhibitor (itraconazole) and inducer (rifampicin). METHODS: In vitro studies using recombinant CYPs, human liver microsomes, and human hepatocytes were conducted to determine the CYP isoforms responsible for BI 425809 metabolism. In addition, two open-label, fixed-treatment period, phase I studies in healthy male volunteers are described. Period 1: participants received oral BI 425809 25 mg (single dose) on day 1; period 2: participants received multiple doses, across 10 days, of oral itraconazole or rifampicin combined with a single dose of oral BI 425809 25 mg on day 4/7 of the itraconazole/rifampicin treatment, respectively. Pharmacokinetic and safety endpoints were assessed in the absence/presence of itraconazole/rifampicin and included area under the concentration-time curve (AUC) over the time interval 0-167 h (AUC0‒167; itraconazole), 0-168 h (AUC0‒168; rifampicin), or 0-infinity (AUC0-∞; rifampicin and itraconazole), maximum measured concentration (Cmax) of BI 425809, and adverse events. RESULTS: In vitro results suggested that CYP3A4 accounted for ≥ 90% of the metabolism of BI 425809. BI 425809 exposure (adjusted geometric mean ratio [%]) was higher in the presence of itraconazole (AUC0‒167: 265.3; AUC0-∞: 597.0; Cmax: 116.1) and lower in the presence of rifampicin (AUC0‒168: 10.3; AUC0-∞: 9.8; Cmax: 37.4) compared with BI 425809 alone. Investigational treatments were well tolerated. CONCLUSIONS: Systemic exposure of BI 425809 was altered in the presence of strong CYP3A4 modulators, corroborating in vitro results that CYP3A4 mediates a major metabolic pathway for BI 425809. TRIAL REGISTRATION NUMBER: NCT02342717 (registered on 15 January 2015) and NCT03082183 (registered on 10 March 2017).


Assuntos
Inibidores do Citocromo P-450 CYP3A/farmacocinética , Itraconazol/farmacocinética , Nootrópicos/farmacocinética , Compostos Orgânicos/farmacocinética , Rifampina/farmacocinética , Esquizofrenia/tratamento farmacológico , Adolescente , Adulto , Área Sob a Curva , Linhagem Celular , Inibidores do Citocromo P-450 CYP3A/sangue , Sinergismo Farmacológico , Proteínas da Membrana Plasmática de Transporte de Glicina/metabolismo , Voluntários Saudáveis , Humanos , Itraconazol/administração & dosagem , Itraconazol/sangue , Masculino , Pessoa de Meia-Idade , Nootrópicos/administração & dosagem , Nootrópicos/sangue , Compostos Orgânicos/administração & dosagem , Compostos Orgânicos/sangue , Rifampina/administração & dosagem , Rifampina/sangue , Adulto Jovem
5.
Mol Pharm ; 19(1): 51-66, 2022 01 03.
Artigo em Inglês | MEDLINE | ID: mdl-34919407

RESUMO

Understanding the dissolution mechanisms of amorphous solid dispersions (ASDs) and being able to link enhanced drug exposure with process parameters are key when formulating poorly soluble compounds. Thus, in this study, ASDs composed by itraconazole (ITZ) and hydroxypropylmethylcellulose acetate succinate (HPMCAS) were formulated with different polymer grades and drug loads (DLs) and processed by spray drying with different atomization ratios and outlet temperatures. Their in vitro performance and the ability to form drug-rich colloids were then evaluated by a physiologically relevant dissolution method. In gastric media, drug release followed a diffusion-controlled mechanism and drug-rich colloids were not formed since the solubility of the amorphous API at pH 1.6 was not exceeded. After changing to intestinal media, the API followed a polymer dissolution-controlled release, where the polymer rapidly dissolved, promoting the immediate release of API and thus leading to liquid-liquid phase separation (LLPS) and consequent formation of drug-rich colloids. However, the release of API and polymer was not congruent, so API surface enrichment occurred, which limited the further dissolution of the polymer, leading to a drug-controlled release. ASDs formulated with M-grade showed the highest ability to maintain supersaturation and the lowest tendency for AAPS due to its good balance between acetyl and succinoyl groups, and thus strong interactions with both the hydrophobic drug and the aqueous dissolution medium. The ability to form colloids increased for low DL (15%) and high specific surface area due to the high amount of polymer released until the occurrence of API surface enrichment. Even though congruent release was not observed, all ASDs formed drug-rich colloids that were stable in the solution until the end of the dissolution study (4 h), maintaining the same size distribution (ca. 300 nm). Drug-rich colloids can, in vivo, act as a drug reservoir replenishing the drug while it permeates. Designing ASDs that are prone to form colloids can overcome the solubility constraints of Biopharmaceutics Classification System (BCS) II and IV drugs, posing as a reliable formulation strategy.


Assuntos
Coloides/química , Composição de Medicamentos , Itraconazol/administração & dosagem , Metilcelulose/análogos & derivados , Varredura Diferencial de Calorimetria , Combinação de Medicamentos , Composição de Medicamentos/métodos , Liberação Controlada de Fármacos , Itraconazol/análise , Itraconazol/química , Metilcelulose/administração & dosagem , Metilcelulose/análise , Metilcelulose/química , Microscopia Eletrônica de Varredura , Tamanho da Partícula , Difração de Raios X
6.
Cell Mol Biol (Noisy-le-grand) ; 67(3): 24-34, 2021 Nov 25.
Artigo em Inglês | MEDLINE | ID: mdl-34933736

RESUMO

The economic approaches for manufacturing the nanoparticles with physical and chemical effects and limited resistance to antibiotics have been progressed recently due to the rise of microbial resistance to antibiotics. This research aimed to study the antimicrobial efficacy of silver nanoparticles Ag, ZnO, and Tio2 nanoparticles against Salmonella typhimurium and Brucella abortus and Candida albicans. Two isolates of Salmonella and two isolates of Brucella abortus were isolated from food spastically meat and blood specimens, respectively. Candida albicans were isolated from the patient's mouth with oral candidiasis (oral thrush) and confirmed diagnosis by API 20C test. The antimicrobial susceptibility of Salmonella typhimurium and B. abortus isolates were performed against nine different antibiotics. Silver nanoparticles consisting of AgNPs size (90) nm, ZnO NPs size (20, 50) nm as well as TiO2 NPs size (10, 50) nm, were used. UV-Visible spectrophotometer was used to characterize silver nanoparticles. The highest resistance of Candida albicans was seen for fluconazole, Clotrimazole and Itraconazole. The results of the Minimum Inhibitory Concentration (MIC) of nanoparticles against Salmonella typhimurium showed the average MIC of Tio2-10nm and Tio2-50nm were 5000 and 2500 µg\ml for S1 and S2 isolates, respectively. The isolated Brucella abortus (B1 and B2) showed sensitivity to NPs with different MIC. The average MIC for Ag-90nm was 5000 and 2500 µg/ml for B1 and B2 isolates, respectively. The findings suggest NP solution has fungicidal and bactericidal impacts on the tested microorganisms so they can be suitable for multiple applications of the biomedical field such as developing new antimicrobial agents.


Assuntos
Bactérias/efeitos dos fármacos , Candida albicans/efeitos dos fármacos , Nanopartículas Metálicas/administração & dosagem , Prata/farmacologia , Titânio/farmacologia , Óxido de Zinco/farmacologia , Antibacterianos/administração & dosagem , Antibacterianos/química , Antibacterianos/farmacologia , Antifúngicos/administração & dosagem , Antifúngicos/química , Antifúngicos/farmacologia , Bactérias/classificação , Bactérias/crescimento & desenvolvimento , Brucella abortus/efeitos dos fármacos , Brucella abortus/crescimento & desenvolvimento , Candida albicans/crescimento & desenvolvimento , Clotrimazol/administração & dosagem , Clotrimazol/química , Clotrimazol/farmacologia , Farmacorresistência Fúngica , Fluconazol/administração & dosagem , Fluconazol/química , Fluconazol/farmacologia , Humanos , Itraconazol/administração & dosagem , Itraconazol/química , Itraconazol/farmacologia , Nanopartículas Metálicas/química , Testes de Sensibilidade Microbiana/métodos , Tamanho da Partícula , Salmonella typhimurium/efeitos dos fármacos , Salmonella typhimurium/crescimento & desenvolvimento , Prata/administração & dosagem , Prata/química , Espectrofotometria/métodos , Espectroscopia de Infravermelho com Transformada de Fourier/métodos , Titânio/administração & dosagem , Titânio/química , Óxido de Zinco/administração & dosagem , Óxido de Zinco/química
8.
Mol Pharm ; 18(11): 4122-4130, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34618448

RESUMO

This study assessed the in vitro-in vivo correlation in cocrystal dissolution based on the coformer behavior. 4-Aminobenzoic acid (4ABA) was used as a coformer. Cocrystals of poorly water-soluble drugs with 4ABA, ketoconazole cocrystal (KTZ-4ABA), posaconazole cocrystal (PSZ-4ABA), and itraconazole cocrystal (ITZ-4ABA) were used. These three cocrystals generated supersaturated solutions in fasted state simulated intestinal fluid (FaSSIF) in a small-scale, 8 mL dissolution vessel. The time profile of the dissolved amount of 4ABA, an indicator of cocrystal dissolution, was significantly different among the three cocrystals. Under the conditions utilized, half of the KTZ-4ABA cocrystal solid rapidly dissolved within 5 min and the dissolved amount (% of applied amount) of KTZ and 4ABA was the same. Then, even though the residual solid cocrystal gradually dissolved, KTZ precipitated with time. The PSZ-4ABA cocrystal dissolved in a linear fashion with time but the dissolved concentration of PSZ reached a plateau in the supersaturated state and was maintained for at least 2 h. The dissolution rate of ITZ-4ABA was very slow compared to those of the other cocrystals, but a similar tendency was observed between cocrystal dissolution and the dissolved amount of ITZ. The rank order of the cocrystal dissolution rate based on the conformer concentration was KTZ-4ABA > PSZ-4ABA > ITZ-4ABA. Furthermore, cocrystallization of the three drugs with 4ABA significantly enhanced the oral drug absorption in rats. The rank order of the in vivo cocrystal dissolution rate by a deconvolution analysis with the plasma concentration-time profile of 4ABA was KTZ-4ABA > PSZ-4ABA > ITZ-4ABA, which corresponded well with the in vitro dissolution profiles of the cocrystals. These results indicate that analysis of cocrystal dissolution based on the coformer behavior may be useful to evaluate the in vitro and in vivo cocrystal dissolution.


Assuntos
Ácido 4-Aminobenzoico/química , Adjuvantes Farmacêuticos/química , Itraconazol/farmacocinética , Cetoconazol/farmacocinética , Triazóis/farmacocinética , Administração Oral , Animais , Química Farmacêutica , Cristalização , Composição de Medicamentos/métodos , Liberação Controlada de Fármacos , Absorção Gastrointestinal , Itraconazol/administração & dosagem , Itraconazol/química , Cetoconazol/administração & dosagem , Cetoconazol/química , Masculino , Ratos , Solubilidade , Triazóis/administração & dosagem , Triazóis/química
9.
Lancet Infect Dis ; 21(11): e356-e362, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34599872

RESUMO

Spinal epidural abscess caused by Aspergillus spp is a debilitating form of invasive aspergillosis that can easily be misdiagnosed as spinal tuberculosis due to shared risk factors and clinical features. In this Grand Round, we describe a case of thoracic aspergillus spinal epidural abscess in a patient with underlying HIV infection. The initial diagnostic consideration was that of spinal tuberculosis. Consequently, despite positive microbiological cultures of Aspergillus fumigatus, antifungal therapy was delayed until histopathological evaluation of the affected tissue confirmed the presence of fungal hyphae. The patient showed an initial favourable response after surgical removal of the infected focus, but unfortunately never returned to premorbid functioning. This case highlights the importance of early diagnosis, urgent surgery, and prompt antifungal therapy for the management of aspergillus spinal epidural abscesses. Associated morbidity and mortality can be substantially increased if physicians fail to recognise this condition and do not institute appropriate and timely surgical and medical treatment.


Assuntos
Aspergilose/diagnóstico , Aspergilose/patologia , Abscesso Epidural/microbiologia , Infecções por HIV/complicações , HIV-1 , Tuberculose/diagnóstico , Adulto , Antifúngicos/administração & dosagem , Antifúngicos/uso terapêutico , Aspergilose/tratamento farmacológico , Aspergillus , Abscesso Epidural/tratamento farmacológico , Feminino , Humanos , Itraconazol/administração & dosagem , Itraconazol/uso terapêutico , Tuberculose/patologia , Voriconazol/administração & dosagem , Voriconazol/uso terapêutico
10.
Kurume Med J ; 66(4): 239-246, 2021 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-34544939

RESUMO

Febrile neutropenia, a serious complication that can occur during the treatment of hematological malignancies, can sometimes be fatal owing to fungal infection. Prospective randomized trials indicated the utility of liposomal amphotericin B or caspofungin as an empirical antifungal therapy. Itraconazole, a broad-spectrum tri azole antifungal agent, is poorly absorbed in the intestines after oral absorption and makes it difficult to achieve a stable serum drug concentration. Therefore, an intravenous formulation might offer a potentially safer and more effective alternative. To compare the efficacy and safety of empirical antifungal therapy, patients will be randomly assigned to either the liposomal amphotericin B 3.0 mg/kg once daily group or the intravenous itraconazole 200 mg dose group with five stratification factors (disease risk, previous antifungal prophylaxis, age, sex, and institute). The primary endpoint will be overall favorable response, comprising five secondary endpoints: successful treatment of baseline infection by the end of the treatment; absence of breakthrough infection; no discontinuation of the antifungal treatment due to drug-related toxicity; fever resolution during neutropenia; and 7-day survival after termination of the antifungal treatment. The target sample size of 850 subjects is sufficient to prove the non inferiority of itraconazole compared with liposomal amphotericin B, with a non-inferiority margin of 10%, one sided significance level of 5%, and power of 90%.


Assuntos
Anfotericina B/efeitos adversos , Antifúngicos/efeitos adversos , Neoplasias Hematológicas/tratamento farmacológico , Itraconazol/efeitos adversos , Neutropenia/tratamento farmacológico , Anfotericina B/administração & dosagem , Antifúngicos/administração & dosagem , Estudos de Equivalência como Asunto , Febre de Causa Desconhecida/tratamento farmacológico , Neoplasias Hematológicas/complicações , Humanos , Itraconazol/administração & dosagem , Estudos Multicêntricos como Assunto , Estudos Prospectivos , Ensaios Clínicos Controlados Aleatórios como Assunto
12.
Drug Des Devel Ther ; 15: 2485-2493, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34140765

RESUMO

PURPOSE: Pyrotinib, an irreversible human epidermal growth factor receptor 2 (HER2), is a epidermal growth factor receptor double-target tyrosine kinase inhibitor used for treating HER2-positive breast cancer. This study aimed to evaluate the impact of the strong CYP3A4 inhibitor itraconazole on the safety and pharmacokinetics of pyrotinib in Chinese healthy adults. PATIENTS AND METHODS: This was an open-label, randomized, self-control study. Eighteen healthy adults were included in this trial. They received a single 80 mg dose of pyrotinib orally on days 1 and 9, and a 200 mg once-daily dose of itraconazole on days 6 through 22. Blood samples were obtained, and the drug concentration was detected using liquid chromatography/tandem mass spectrometry. RESULTS: Compared with pyrotinib alone, the exposure to pyrotinib co-administered with itraconazole substantially increased, and the C max and AUC0-t increased by 2.78- and 10.8-fold, respectively. No serious adverse events were reported in this trial, and no participant dropped out of the trial because of adverse events. CONCLUSION: The exposure to pyrotinib was substantially affected by the action of itraconazole. The concomitant use of pyrotinib with itraconazole might require dose modification of pyrotinib. All treatments were well tolerated in healthy participants. CLINICAL TRIAL REGISTRY: http://www.chinadrugtrials.org.cn/clinicaltrials.prosearch.dhtml, CTR20191866.


Assuntos
Acrilamidas/farmacocinética , Aminoquinolinas/farmacocinética , Inibidores do Citocromo P-450 CYP3A/farmacologia , Itraconazol/farmacologia , Inibidores de Proteínas Quinases/farmacocinética , Adulto , Área Sob a Curva , Povo Asiático , Inibidores do Citocromo P-450 CYP3A/administração & dosagem , Interações Medicamentosas , Feminino , Humanos , Itraconazol/administração & dosagem , Masculino , Adulto Jovem
13.
Clin Transl Sci ; 14(6): 2220-2230, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34080309

RESUMO

Milademetan is a small-molecule inhibitor of murine double minute 2 (MDM2) that is in clinical development for advanced solid tumors and hematological cancers, including liposarcoma and acute myeloid leukemia. Milademetan is a CYP3A and P-glycoprotein substrate and moderate CYP3A inhibitor. The current study aims to understand the drug-drug interaction (DDI) risk of milademetan as a CYP3A substrate during its early clinical development. A clinical DDI study of milademetan (NCT03614455) showed that concomitant administration of single-dose milademetan with the strong CYP3A inhibitor itraconazole or posaconazole increased milademetan mean area under the curve from zero to infinity (AUCinf ) by 2.15-fold (90% confidence interval [CI], 1.98-2.34) and 2.49-fold (90% CI, 2.26-2.74), respectively, supporting that the milademetan dose should be reduced by 50% when concomitantly administered with strong CYP3A inhibitors. A physiologically-based pharmacokinetic (PBPK) model of milademetan was subsequently developed to predict the magnitude of CYP3A-mediated DDI potential of milademetan with moderate CYP3A inhibitors. The PBPK model predicted an increase in milademetan exposure of 1.72-fold (90% CI, 1.69-1.76) with fluconazole, 1.91-fold (90% CI, 1.83-1.99) with erythromycin, and 2.02-fold (90% CI, 1.93-2.11) with verapamil. In addition, it estimated that milademetan's original dose (160 mg once daily) could be resumed from its half-reduced dose 3 days after discontinuation of concomitant strong CYP3A inhibitors. The established PBPK model of milademetan was qualified and considered to be robust enough to support continued development of milademetan.


Assuntos
Inibidores do Citocromo P-450 CYP3A/farmacocinética , Interações Medicamentosas , Indóis/farmacocinética , Piridinas/farmacocinética , Pirrolidinas/farmacocinética , Inibidores do Citocromo P-450 CYP3A/administração & dosagem , Humanos , Indóis/administração & dosagem , Itraconazol/administração & dosagem , Piridinas/administração & dosagem , Pirrolidinas/administração & dosagem , Medição de Risco , Triazóis/administração & dosagem
14.
Mycoses ; 64(9): 1038-1044, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34058036

RESUMO

BACKGROUND: Pulmonary aspergilloma (PA) is a common complication seen in patients with pulmonary tuberculosis sequelae. Antifungal therapy, including oral azoles, is commonly used though only surgical resection offers curative benefit. Local administration of amphotericin B, like intracavitary instillation, has been effective in aspergilloma patients though nebulised amphotericin B (nAB) has never been formally assessed. OBJECTIVE: The aim of this prospective, non-inferior, open-label, randomised control trial is to evaluate the efficacy and safety of nebulised amphotericin B compared to oral itraconazole therapy in the treatment of PA. PATIENTS/METHODS: Diagnosed cases of PA (n=33) were randomised into the control group receiving oral itraconazole (n=18) and intervention group receiving nebulised amphotericin B (n = 15). Response to treatment was assessed both clinically and radiologically at the end 6 months. RESULTS AND CONCLUSION: The number of patients showing overall improvement at the end of 6 months in the control arm(oral itraconazole) vs intervention arm(nebulised amphotericin B) was 65% (95% CI 38.3-85.8) and 67%(95% CI 38.4%-88.2%), respectively, in the intention-to-treat and 79% (95% CI 49.2%-95.3%), and 65% (95% CI 38.4%-88.2%), respectively, in the per-protocol analysis. While there was no statistically significant difference between the intervention and control arm in both the analyses, non-inferiority was shown in the per-protocol but not in the intention-to-treat analysis. No major adverse events were noted in either group; however, a significant proportion of patients receiving nAB reported minor cough (40%), which, however, did not lead to discontinuation of therapy in any patients. Nebulised amphotericin B can be an effective therapeutic option for pulmonary aspergilloma patients.


Assuntos
Anfotericina B , Antifúngicos , Itraconazol , Aspergilose Pulmonar , Anfotericina B/administração & dosagem , Anfotericina B/uso terapêutico , Antifúngicos/administração & dosagem , Antifúngicos/uso terapêutico , Humanos , Itraconazol/administração & dosagem , Itraconazol/uso terapêutico , Estudos Prospectivos , Aspergilose Pulmonar/tratamento farmacológico
15.
Drug Deliv ; 28(1): 906-919, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33960245

RESUMO

Itraconazole (ITC), a well-tolerated antifungal drug, exerts multiple anticancer effects which justified its preclinical and clinical investigation as potential anti-cancer agent with reduced side effects. Enhancement of ITC anti-cancer efficacy would bring valuable benefits to patients. We propose herein lipid nanocapsules (LNCs) modified with a subtherapeutic dose of miltefosine (MFS) as a membrane bioactive amphiphilic additive (M-ITC-LNC) for the development of an ITC nanoformulation with enhanced anticancer activity compared with ITC solution (ITC-sol) and unmodified ITC-LNC. Both LNC formulations showed a relatively small size (43-46 nm) and high entrapment efficiency (>97%), though ITC release was more sustained by M-ITC-LNC. Cytotoxicity studies revealed significantly greater anticancer activity and selectivity of M-ITC-LNC for MCF-7 breast cancer cells compared with ITC-sol and ITC-LNC. This trend was substantiated by in vivo findings following a 14 day-treatment of murine mammary pad Ehrlich tumors. M-ITC-LNC showed the greatest enhancement of the ITC-induced tumor growth inhibition, proliferation, and necrosis. At the molecular level, the tumor content of Gli 1, caspase-3, and vascular endothelial growth factor verified superiority of M-ITC-LNC in enhancing the ITC antiangiogenic, apoptotic, and Hedgehog pathway inhibitory effects. Finally, histopathological and biochemical analysis indicated greater reduction of ITC systemic toxicity by M-ITC-LNC. Superior performance of M-ITC-LNC was attributed to the effect of MFS on the structural and release properties of LNC coupled with its distinct bioactivities. In conclusion, MFS-modified LNC provides a simple nanoplatform integrating the potentials of LNC and MFS for enhancing the chemotherapeutic efficacy of ITC and possibly other oncology drugs.


Assuntos
Antineoplásicos/farmacologia , Neoplasias da Mama/tratamento farmacológico , Itraconazol/farmacologia , Nanocápsulas/química , Fosforilcolina/análogos & derivados , Animais , Antineoplásicos/administração & dosagem , Antineoplásicos/farmacocinética , Apoptose/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Química Farmacêutica , Portadores de Fármacos/química , Combinação de Medicamentos , Liberação Controlada de Fármacos , Feminino , Proteínas Hedgehog/efeitos dos fármacos , Humanos , Itraconazol/administração & dosagem , Itraconazol/farmacocinética , Células MCF-7 , Camundongos , Camundongos Endogâmicos BALB C , Neovascularização Patológica/tratamento farmacológico , Tamanho da Partícula , Fosforilcolina/administração & dosagem , Fosforilcolina/farmacocinética , Fosforilcolina/farmacologia , Distribuição Aleatória
16.
EBioMedicine ; 66: 103288, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33752127

RESUMO

BACKGROUND: The antifungal drug itraconazole exerts in vitro activity against SARS-CoV-2 in Vero and human Caco-2 cells. Preclinical and clinical studies are required to investigate if itraconazole is effective for the treatment and/or prevention of COVID-19. METHODS: Due to the initial absence of preclinical models, the effect of itraconazole was explored in a clinical, proof-of-concept, open-label, single-center study, in which hospitalized COVID-19 patients were randomly assigned to standard of care with or without itraconazole. Primary outcome was the cumulative score of the clinical status until day 15 based on the 7-point ordinal scale of the World Health Organization. In parallel, itraconazole was evaluated in a newly established hamster model of acute SARS-CoV-2 infection and transmission, as soon as the model was validated. FINDINGS: In the hamster acute infection model, itraconazole did not reduce viral load in lungs, stools or ileum, despite adequate plasma and lung drug concentrations. In the transmission model, itraconazole failed to prevent viral transmission. The clinical trial was prematurely discontinued after evaluation of the preclinical studies and because an interim analysis showed no signal for a more favorable outcome with itraconazole: mean cumulative score of the clinical status 49 vs 47, ratio of geometric means 1.01 (95% CI 0.85 to 1.19) for itraconazole vs standard of care. INTERPRETATION: Despite in vitro activity, itraconazole was not effective in a preclinical COVID-19 hamster model. This prompted the premature termination of the proof-of-concept clinical study. FUNDING: KU Leuven, Research Foundation - Flanders (FWO), Horizon 2020, Bill and Melinda Gates Foundation.


Assuntos
Antivirais/farmacologia , Tratamento Farmacológico da COVID-19 , Itraconazol/farmacologia , Animais , Antivirais/administração & dosagem , Antivirais/farmacocinética , Antivirais/uso terapêutico , COVID-19/etiologia , COVID-19/transmissão , Chlorocebus aethiops , Modelos Animais de Doenças , Avaliação Pré-Clínica de Medicamentos , Feminino , Humanos , Itraconazol/administração & dosagem , Itraconazol/farmacocinética , Itraconazol/uso terapêutico , Masculino , Mesocricetus , Pessoa de Meia-Idade , Pneumonia Viral/tratamento farmacológico , Pneumonia Viral/patologia , Pneumonia Viral/virologia , Estudo de Prova de Conceito , SARS-CoV-2/efeitos dos fármacos , Resultado do Tratamento , Células Vero
18.
Med Oncol ; 38(3): 23, 2021 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-33559053

RESUMO

Itraconazole is an oral antifungal that has a been reported to have anticancer effect in non-small cell lung cancer (NSCLC) through inhibition of angiogenesis. The aim is to evaluate the effect of using itraconazole on the clinical outcome of metastatic NSCLC. This was a prospective randomized controlled open-label study conducted on 60 chemotherapy-naive metastatic NSCLC. Patients were simply randomized to either Control group who received platinum-based chemotherapy for a maximum of six cycles or Itraconazole group who received the same chemotherapy regimen in addition to itraconazole 200 mg daily for 21 days starting from day 1 in each cycle. Primary outcome was 1-year progression-free survival (PFS) while secondary outcomes included overall response rate (ORR), 1-year overall survival (OS) and tolerability. The two groups were comparable at baseline with no significant difference between groups regarding demographics and clinical characteristics. The ORR in Control group was 66.7% versus 90% in Itraconazole group (p value 0.028). There was a significant difference between groups regarding PFS where the mean 1-year PFS was 5.415 months in Control group versus 6.556 months in Itraconazole group (p value = 0.002). However, there was no significant difference between groups with respect to 1-year OS. All adverse effects reported were tolerable except for one patient who developed grade 2 cardiotoxicity in Itraconazole group requiring itraconazole discontinuation. Itraconazole use was beneficial in NSCLC in terms of 1-year PFS and ORR which was not reflected by improvement in 1-year OS.Clinical trial.gov registration number: NCT03664115, date of registration: September 10, 2018.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/patologia , Feminino , Humanos , Itraconazol/administração & dosagem , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Compostos Organoplatínicos/administração & dosagem , Taxa de Sobrevida , Resultado do Tratamento
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