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1.
PLoS One ; 18(7): e0287409, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37432960

RESUMO

A blood-based integrated classifier (IC) has been clinically validated to improve accuracy in assessing probability of cancer risk (pCA) for pulmonary nodules (PN). This study evaluated the clinical utility of this biomarker for its ability to reduce invasive procedures in patients with pre-test pCA ≤ 50%. This was a propensity score matching (PSM) cohort study comparing patients in the ORACLE prospective, multicenter, observational registry to control patients treated with usual care. This study enrolled patients meeting the intended use criteria for IC testing: pCA ≤ 50%, age ≥40 years, nodule diameter 8-30 mm, and no history of lung cancer and/or active cancer (except for non-melanomatous skin cancer) within 5 years. The primary aim of this study was to evaluate invasive procedure use on benign PNs of registry patients as compared to control patients. A total of 280 IC tested, and 278 control patients met eligibility and analysis criteria and 197 were in each group after PSM (IC and control groups). Patients in the IC group were 74% less likely to undergo an invasive procedure as compared to the control group (absolute difference 14%, p <0.001) indicating that for every 7 patients tested, one unnecessary invasive procedure was avoided. Invasive procedure reduction corresponded to a reduction in risk classification, with 71 patients (36%) in the IC group classified as low risk (pCA < 5%). The proportion of IC group patients with malignant PNs sent to surveillance were not statistically different than the control group, 7.5% vs 3.5% for the IC vs. control groups, respectively (absolute difference 3.91%, p 0.075). The IC for patients with a newly discovered PN has demonstrated valuable clinical utility in a real-world setting. Use of this biomarker can change physicians' practice and reduce invasive procedures in patients with benign pulmonary nodules. Trial registration: Clinical trial registration: ClinicalTrials.gov NCT03766958.


Assuntos
Neoplasias Pulmonares , Nódulos Pulmonares Múltiplos , Humanos , Adulto , Estudos de Coortes , Estudos Prospectivos , Neoplasias Pulmonares/diagnóstico , Grupos Controle , Nódulos Pulmonares Múltiplos/diagnóstico por imagem , Pontuação de Propensão
2.
Respir Med ; 138: 74-80, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29724397

RESUMO

OBJECTIVES: This study compared the efficacy, pharmacokinetics (PK), and safety of GFF MDI (Bevespi Aerosphere®), a fixed-dose combination of glycopyrronium and formoterol fumarate dihydrate (14.4/10 µg) delivered by a metered dose inhaler (MDI) formulated using innovative co-suspension delivery technology, in patients with moderate-to-very severe chronic obstructive pulmonary disease (COPD) with and without the Aerochamber Plus® Flow-Vu® valved holding chamber (VHC). METHODS: In this multicenter, open-label, crossover, Phase III study (NCT02454959), patients were randomized to receive GFF MDI 14.4/10 µg (equivalent to glycopyrrolate/formoterol fumarate 18/9.6 µg) twice daily for 7 days with and without the VHC. The primary endpoint was forced expiratory volume in 1 s area under the curve from 0 to 12 h (FEV1 AUC0-12) on Day 8. Steady state PK parameters for glycopyrronium and formoterol (AUC0-12, peak concentration [Cmax] and time to peak concentration [tmax]) were estimated from 12-h plasma concentration time data on Day 8. Safety and tolerability were also assessed throughout. RESULTS: Eighty patients were randomized. On Day 8, the ratio (90% confidence interval [CI]) of least squares mean (LSM) FEV1 AUC0-12 for GFF MDI with VHC (LSM = 1538 mL; n = 67) versus without VHC (LSM = 1516 mL; n = 68) was 101.4% (100.1, 102.7). PK parameters were comparable overall with a slightly higher exposure to glycopyrronium with the VHC. The AUC0-12 geometric LSM ratio (90% CI) for GFF MDI with versus without VHC was 115.99% (99.74, 134.89) for glycopyrronium and 96.66% (86.69, 107.78) for formoterol. GFF MDI with and without VHC were well tolerated with a similar adverse event profile. CONCLUSIONS: The magnitude of bronchodilatory effect was similar with and without a VHC following GFF MDI treatment. This, together with the PK and safety profiles, supports the use of the VHC with GFF MDI for the maintenance treatment of COPD, which could be particularly useful for patients who have difficulty with the coordination of an MDI.


Assuntos
Fumarato de Formoterol/administração & dosagem , Glicopirrolato/administração & dosagem , Inaladores Dosimetrados , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Idoso , Broncodilatadores/administração & dosagem , Broncodilatadores/efeitos adversos , Broncodilatadores/sangue , Combinação de Medicamentos , Feminino , Volume Expiratório Forçado/efeitos dos fármacos , Fumarato de Formoterol/efeitos adversos , Fumarato de Formoterol/sangue , Glicopirrolato/efeitos adversos , Glicopirrolato/sangue , Humanos , Espaçadores de Inalação , Masculino , Pessoa de Meia-Idade , Antagonistas Muscarínicos/administração & dosagem , Antagonistas Muscarínicos/efeitos adversos , Antagonistas Muscarínicos/sangue , Doença Pulmonar Obstrutiva Crônica/sangue , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Índice de Gravidade de Doença
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