{"title":"Effectiveness and Safety of Reduced-Dose Prasugrel in an East Asian Population: PRASFIT-ACS Emulation Using National Health Insurance Claims Data.","authors":"Li-Wen Huang, Yee-Jen Wu, Fang-Ju Lin, Chien-Chih Wu, Hsin-Yi Huang, Chi-Chuan Wang, Xiaojuan Li","doi":"10.1002/cpt.70017","DOIUrl":"https://doi.org/10.1002/cpt.70017","url":null,"abstract":"<p><p>Prasugrel is recommended for acute coronary syndrome (ACS) patients undergoing percutaneous coronary intervention (PCI). However, East Asians exhibit a stronger antiplatelet response, raising concerns about bleeding risks with standard dosing. This retrospective cohort study evaluated the real-world effectiveness and safety of reduced-dose prasugrel in an East Asian population by emulating the pivotal PRASFIT-ACS trial using Taiwan's National Health Insurance claims data. In this study, ACS patients were classified into reduced-dose prasugrel or clopidogrel groups post-PCI. We estimated the intention-to-treat effect of initiating reduced-dose prasugrel vs. clopidogrel on the risk of major adverse cardiovascular events (MACE) and the per-protocol effect of treating with reduced-dose prasugrel on major bleeding risk using Cox proportional hazard models. A total of 4833 ACS patients were analyzed, including 977 (20.2%) who received reduced-dose prasugrel. Reduced-dose prasugrel showed comparable effectiveness to clopidogrel in preventing MACE (HR: 0.96, 95% CI: 0.72-1.29) and did not increase bleeding risk (HR: 0.82, 95% CI: 0.36-1.90), consistent with PRASFIT-ACS results (HR<sub>MACE</sub>: 0.85, 95% CI: 0.62-1.16; HR<sub>Bleeding</sub>: 0.82, 95% CI: 0.39-1.73). A significant reduction in cardiovascular mortality was observed (HR: 0.51, 95% CI: 0.29-0.89), differing from PRASFIT-ACS findings (HR: 1.21, 95% CI: 0.48-3.06). Our results suggest that reduced-dose prasugrel was effective in preventing thrombotic events in the Taiwanese population without significantly increasing bleeding risk. These findings align with pivotal trial outcomes while highlighting the importance of race-specific dose adjustments to optimize ACS treatment strategies. Further research is needed to evaluate whether these results are applicable to other East Asian populations.</p>","PeriodicalId":153,"journal":{"name":"Clinical Pharmacology & Therapeutics","volume":" ","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Expediting Drug Development in Japan: A PMDA Perspective.","authors":"Yoichi Kohno, Akihiro Ishiguro, Takashi Yasukawa, Naoyuki Yasuda, Daisuke Tanaka, Yasuhiro Araki, Yukio Takahashi, Yoshiaki Uyama, Yasuhiro Fujiwara","doi":"10.1002/cpt.70022","DOIUrl":"https://doi.org/10.1002/cpt.70022","url":null,"abstract":"<p><p>Review time for a new drug in Japan has shortened dramatically since the establishment of the Pharmaceuticals and Medical Devices Agency (PMDA). Nonetheless, Japan faces a new challenge so-called \"Drug Loss\", which means that new drugs approved overseas have not yet been developed in Japan or that development is delayed. In this manuscript, we describe how PMDA facilitates Japan's drug development to continuously provide innovative drugs to patients.</p>","PeriodicalId":153,"journal":{"name":"Clinical Pharmacology & Therapeutics","volume":" ","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuanyuan Zhao, Keer Chen, Jun Zhou, Jun Zhao, Dingheng Zhang, Junyue Wan, Weihong Yuan, Xi Chen, Ming Tan, Fuqiang Cui, Shein-Chung Chow, Ying Wu
{"title":"A Hybrid Design Incorporating External Data to Evaluate Dexamethasone Intracameral Drug Delivery Suspension for Post-Cataract Surgery Inflammation.","authors":"Yuanyuan Zhao, Keer Chen, Jun Zhou, Jun Zhao, Dingheng Zhang, Junyue Wan, Weihong Yuan, Xi Chen, Ming Tan, Fuqiang Cui, Shein-Chung Chow, Ying Wu","doi":"10.1002/cpt.70010","DOIUrl":"https://doi.org/10.1002/cpt.70010","url":null,"abstract":"<p><p>Traditional randomized controlled trials (RCTs) face increasing challenges due to lengthy recruitment and high costs. Regulators have encouraged the use of external data and real-world evidence (RWE) to improve efficiency, yet adoption in confirmatory settings remains limited by concerns over heterogeneity and bias. We conducted a proof-of-concept study to assess the feasibility and regulatory value of a hybrid Bayesian borrowing design to support a Phase III RCT of Dexamethasone Intracameral Drug-Delivery Suspension (DEXYCU) in China. Using the Equivalence Probability Propensity Score Meta-Analytic-Predictive (EQPSMAP) approach, we integrated three data sources-a global RCT, a regional Phase III RCT in China, and a real-world data (RWD) in China. The method's performance was evaluated via point estimates and 95% credible intervals for the primary efficacy endpoint. The hybrid design based on EQPSMAP demonstrated greater robustness and accuracy in the presence of baseline imbalances and heterogeneous data. Compared to a traditional RCT, the hybrid design reduced the required sample size by 41 to 158 patients and shortened trial duration by approximately 2 to 5 months while preserving internal validity. This study demonstrated the feasibility and regulatory value of hybrid Bayesian designs in late-phase trials. The approach offers a practical, bias-controlled framework for integrating external data into regional drug development and regulatory decision making.</p>","PeriodicalId":153,"journal":{"name":"Clinical Pharmacology & Therapeutics","volume":" ","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144758806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Toni J F Michael, Ranita Kirubakaran, Tanay Parab, Rui Wang, Mark Grosser, Beverley J Vollenhoven, Vinayak Smith, Sophie L Stocker
{"title":"The Type of Follicle-Stimulating Hormone Medication Given for In Vitro Fertilization Impacts Oocyte Retrieval: A Systematic Review and Meta-Analysis.","authors":"Toni J F Michael, Ranita Kirubakaran, Tanay Parab, Rui Wang, Mark Grosser, Beverley J Vollenhoven, Vinayak Smith, Sophie L Stocker","doi":"10.1002/cpt.70014","DOIUrl":"https://doi.org/10.1002/cpt.70014","url":null,"abstract":"<p><p>Understanding the variability in ovarian response following administration of follicle-stimulating hormone medications in women undergoing in vitro fertilization may help inform prescribing decisions. A systematic review was conducted to compare the number of retrieved oocytes and fertility outcomes following the administration of different follicle-stimulating hormone medications. Databases were searched from inception to November 2024, including studies that compared two follicle-stimulating hormone medications, including follitropin alfa, follitropin beta, follitropin delta, and urofollitropin. Meta-analyses were performed in random effects models with the restricted maximum likelihood method. From 3867 identified articles, 26 (12613 participants) were included. More oocytes were retrieved with follitropin alfa compared to beta (mean difference 0.64, 95% CI 0.09-1.19). Compared to follitropin delta, more oocytes were retrieved with follitropin alfa and beta (1.38, 95% CI 0.09-2.67, and 1.40, 95% CI 0.41-2.39, respectively); however, higher total doses of follitropin alfa and beta were administered (199.29 IU, 95% CI 43.15-355.43 and 181.08 IU, 95% CI 55.67-306.49, respectively), and the risk of hyperstimulation increased (risk ratios 1.42, 95% CI 1.04-1.96 and 1.75, 95% CI 1.15-2.70, respectively). More oocytes were retrieved with urofollitropin compared to follitropin beta (1.12, 95% CI -1.63 to -0.62), with higher total doses of urofollitropin administered (782.32 IU, 95% CI -1493.79 to -70.85). Variability in ovarian response and hyperstimulation rates across the medications decreased when similar total doses were administered. Fertilization, pregnancy, and live birth rates were similar across the medications, despite differences in the number of retrieved oocytes. Additional research is required to evaluate oocyte quality across follicle-stimulating hormone medications.</p>","PeriodicalId":153,"journal":{"name":"Clinical Pharmacology & Therapeutics","volume":" ","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
John Concato, Leonard Sacks, Peter Stein, Jacqueline Corrigan-Curay
{"title":"Evidence Generation for Drugs and Biological Products isn't Magic or Myth.","authors":"John Concato, Leonard Sacks, Peter Stein, Jacqueline Corrigan-Curay","doi":"10.1002/cpt.3570","DOIUrl":"https://doi.org/10.1002/cpt.3570","url":null,"abstract":"","PeriodicalId":153,"journal":{"name":"Clinical Pharmacology & Therapeutics","volume":" ","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maria J Alfonso Arvez, George S Q Tan, Sam Wade, Zanfina Ademi, Jenni Ilomäki, J Simon Bell
{"title":"Risk of Infections with SGLT2 Inhibitors Versus DPP4 Inhibitors: A Population-Based Cohort Study Using Antibiotic Dispensing Data.","authors":"Maria J Alfonso Arvez, George S Q Tan, Sam Wade, Zanfina Ademi, Jenni Ilomäki, J Simon Bell","doi":"10.1002/cpt.70016","DOIUrl":"https://doi.org/10.1002/cpt.70016","url":null,"abstract":"<p><p>This study compared the number and cumulative dose of antibiotic dispensings among new users of sodium-glucose cotransporter-2 (SGLT2) inhibitors and dipeptidyl peptidase-4 (DPP4) inhibitors following hospital discharge in individuals with type 2 diabetes. A retrospective cohort study was conducted using data from public and private hospitals in Victoria, Australia. Antibiotic dispensings were assessed over 12 months among new users of these medicines. Negative binomial regression with inverse probability of treatment weighting was applied to estimate weighted incidence rate ratios and confidence intervals for the total number of antibiotic dispensings and cumulative defined daily doses, stratified by antibiotic class. A total of 58.3% of SGLT2 inhibitor users (9,162 individuals) and 61.4% of DPP4 inhibitor users (16,589 individuals) received antibiotics. Initiators of SGLT2 inhibitors had a lower number of overall antibiotic dispensings compared with initiators of DPP4 inhibitors (weighted incidence rate ratio 0.88, 95% confidence interval 0.85 to 0.90), a pattern that was consistent across antibiotic classes. SGLT2 inhibitor initiators also had lower cumulative defined daily doses overall (weighted incidence rate ratio 0.89, 95% confidence interval 0.86 to 0.93), with significantly lower doses for penicillins, sulphonamides, and quinolones. These findings suggest that the initiation of SGLT2 inhibitors was associated with lower antibiotic use in terms of both the number of dispensings and cumulative dose, indicating potentially lower rates of infections among individuals with type 2 diabetes.</p>","PeriodicalId":153,"journal":{"name":"Clinical Pharmacology & Therapeutics","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144717103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Oyinlade Kehinde, Samuel E Vaughn, Ogochukwu Amaeze, Paul Toren, Brandon Retke, Akinyemi Oni-Orisan, Laura B Ramsey
{"title":"Cytochrome P450 2D6 *17 and *29 Allele Activity for Risperidone Metabolism: Advancing Precision Medicine Health Equity.","authors":"Oyinlade Kehinde, Samuel E Vaughn, Ogochukwu Amaeze, Paul Toren, Brandon Retke, Akinyemi Oni-Orisan, Laura B Ramsey","doi":"10.1002/cpt.70012","DOIUrl":"https://doi.org/10.1002/cpt.70012","url":null,"abstract":"<p><p>CYP2D6 alleles with low frequency in Eurocentrically biased study populations are often excluded from pharmacogenetic investigation and consequently may have misassigned activity values. This health inequity may be contributing to imprecise dose predictions for CYP2D6-metabolizing drugs. The objective of this study was to determine how sub-Saharan African-specific CYP2D6*17 and *29 alleles affect risperidone metabolism. To do this, we generated the largest real-world cohort of risperidone users in an African study population for pharmacogenetic studies. Risperidone users ≤ 18 years old were recruited from the Federal Neuro-Psychiatric Hospital. Health records were obtained by parent report and paper charts. CYP2D6 genotyping was performed for > 20 variants. Plasma concentrations of risperidone and 9-hydroxyrisperidone were determined by liquid chromatography mass spectrometry. CYP2D6 activity was calculated based on the metabolic ratio 9-hydroxyrisperidone:risperidone. Multivariable linear regression modeling was performed to determine the association between our alleles of interest and log-transformed ratio-defined CYP2D6 activity relative to star alleles with established activity values. Across 208 enrolled participants, CYP2D6 activity value for *17 was found to be twice that of normal function alleles, while *29 was comparable to no function alleles. These results contrast previous values assigned to *17 and *29 from guidelines, which are not based on evidence with risperidone, suggesting the possibility of substrate specificity for these alleles. Ultimately, our findings have the potential to improve risperidone prescribing, especially for patient groups with substantial sub-Saharan African ancestry. Importantly, this work underscores the critical need to better understand the effects of ancestry-specific alleles for achieving equitable pharmacotherapeutic health outcomes.</p>","PeriodicalId":153,"journal":{"name":"Clinical Pharmacology & Therapeutics","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Deandra A Cassel, Gilbert J Burckart, Martina D Sahre, Gelareh A Abulwerdi
{"title":"Pediatric Hepatic Impairment Dosing in FDA Approvals Between 2002 and 2024.","authors":"Deandra A Cassel, Gilbert J Burckart, Martina D Sahre, Gelareh A Abulwerdi","doi":"10.1002/cpt.70011","DOIUrl":"https://doi.org/10.1002/cpt.70011","url":null,"abstract":"<p><p>The safety and efficacy of drugs metabolized by the liver can be substantially impacted by alterations in hepatic function. However, hepatic impairment (HI) is rarely evaluated in pediatric drug development due to challenges such as the relatively small number of patients, differences in adult and pediatric liver disease, and the lack of agreed-upon markers to assess HI severity. The objectives of the study were to (1) examine adult and pediatric HI dosing recommendations in US FDA prescribing information (PI) and pediatric dosing handbooks, Lexicomp and Micromedex, and (2) identify the clinical evidence behind HI dosing recommendations for pediatric patients. A total of 61 drugs containing both a pediatric indication and the word \"hepatic\" in the Dosage and Administration section of the PI were reviewed. Of the 61 drugs, only eight drugs included pediatric-specific HI dosing recommendations, with seven based on the Child-Pugh classification. Pharmacokinetic studies in adults with HI were the primary evidence behind the recommendations for all eight drugs, and only one drug was evaluated in pediatric patients with mild HI. Lexicomp and Micromedex provided consistent HI dosing recommendations with the PI and did not cite additional evidence. Overall, there is a gap in dosing recommendations for pediatric patients with HI. Alternative approaches, such as modeling and simulation based on drug- and disease-specific parameters, may help address knowledge gaps for pediatric patients with HI in the future.</p>","PeriodicalId":153,"journal":{"name":"Clinical Pharmacology & Therapeutics","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jue Gong, Jie Zhou, Dongfen Yuan, Xuewen Ma, Deeksha Vishwamitra, Brandi Hilder, Tara J Masterson, Jaszianne Tolbert, Thomas Renaud, Christoph Heuck, Colleen Kane, Mahesh N Samtani, Suzette Girgis, Nahor Haddish-Berhane, Jesus Berdeja, Amrita Krishnan, Daniele Ouellet
{"title":"Recommended Phase II Doses of Talquetamab in Patients With Relapsed/Refractory Multiple Myeloma From MonumenTAL-1: Clinical Pharmacology Results.","authors":"Jue Gong, Jie Zhou, Dongfen Yuan, Xuewen Ma, Deeksha Vishwamitra, Brandi Hilder, Tara J Masterson, Jaszianne Tolbert, Thomas Renaud, Christoph Heuck, Colleen Kane, Mahesh N Samtani, Suzette Girgis, Nahor Haddish-Berhane, Jesus Berdeja, Amrita Krishnan, Daniele Ouellet","doi":"10.1002/cpt.70004","DOIUrl":"https://doi.org/10.1002/cpt.70004","url":null,"abstract":"<p><p>Talquetamab is the first and only GPRC5D × CD3 bispecific antibody approved for relapsed/refractory multiple myeloma (RRMM). In the phase I/II MonumenTAL-1 study, overall response rates (ORRs) were > 66% in patients with RRMM treated with subcutaneous talquetamab at the recommended phase II doses (RP2Ds): 0.4 mg/kg weekly and 0.8 mg/kg every other week. We characterized the pharmacokinetics (PK), pharmacodynamics, immunogenicity, and exposure-response relationships for efficacy and safety following talquetamab administration in phase I and II. In phase I, talquetamab exposure increased in an approximately dose-proportional manner across intravenous and subcutaneous doses and was maintained around or above the 90% maximum effective concentration identified in an ex vivo cytotoxic assay at the RP2Ds. Higher levels of T-cell activation and cytokine induction were observed at the RP2Ds compared with lower doses. Talquetamab demonstrated time-dependent clearance with a half-life of 7.56 days at initial treatment and 12.2 days at steady state. Patients with immunoglobulin G multiple myeloma and International Staging System (ISS) stage II/III exhibited higher clearance of talquetamab, which resulted in lower exposure. Dose adjustment based on myeloma subtype and ISS stage was not required. In exposure-response analyses, a near-flat relationship was demonstrated for ORR, duration of response, and progression-free survival at the exposure range of the RP2Ds. In safety exposure-response analyses, rates of grade 1/2 dysgeusia increased with higher exposures. The incidence of anti-talquetamab antibodies had no apparent impact on the PK, efficacy, or safety of talquetamab. These clinical pharmacology results support the selection of the talquetamab RP2Ds.</p>","PeriodicalId":153,"journal":{"name":"Clinical Pharmacology & Therapeutics","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bimal K Malhotra, Josué Kunjom Mfopou, Isabelle Huyghe, Pascal Ryckmans, Nathalie Severs, Anna Plotka, Kim-Claire Tabner, Malgorzata Anna Jennes, Anand Bhuvanendran Nair, Anna Colzi
{"title":"Advancing Early Clinical Trials: The Transformative Potential of Decentralized Designs and Digital Technologies in Phase 1 Clinical Trial.","authors":"Bimal K Malhotra, Josué Kunjom Mfopou, Isabelle Huyghe, Pascal Ryckmans, Nathalie Severs, Anna Plotka, Kim-Claire Tabner, Malgorzata Anna Jennes, Anand Bhuvanendran Nair, Anna Colzi","doi":"10.1002/cpt.70002","DOIUrl":"https://doi.org/10.1002/cpt.70002","url":null,"abstract":"<p><p>A Phase 1, open-label, single-dose, fixed-sequence crossover study utilizing a hybrid decentralized clinical trial (DCT) design with and without practice sessions for wearable devices and PK sampling was conducted in eight healthy participants. Using etrasimod, the study assessed the feasibility of conducting a Phase 1 hybrid DCT by the Pfizer Clinical Research Unit (PCRU) staff, involving remote collection of pharmacokinetic (PK), safety, and tolerability data. The study objectives were to determine the PK and to assess the safety and tolerability of etrasimod clinical immediate release tablets in healthy adult participants in a hybrid DCT design. The study consisted of two periods, and the treatments were administered to participants in a fixed sequence: a single oral dose of etrasimod, then DCT with practice sessions in Period 1, followed by a single oral dose of etrasimod and DCT without practice sessions in Period 2. PK results were compared between Periods 1 and 2, and vs. PK from a single oral dose of etrasimod administered on site in a previous conventional design study. Serum etrasimod exposure was similar for non-practice vs. practice sessions within the hybrid DCT framework. PK parameters data from self-collected microsamples in the hybrid DCT design were comparable to PK parameters data from venous samples collected in a conventional setting. The wearable monitoring devices for recording the electrocardiogram (ECG) and vital parameters allowed remote and real-time assessment of safety and tolerability. Therefore, the study results demonstrated the feasibility of using multiple DCT modalities in Phase 1 trials for remote PK, safety, and tolerability assessments.</p>","PeriodicalId":153,"journal":{"name":"Clinical Pharmacology & Therapeutics","volume":" ","pages":""},"PeriodicalIF":6.3,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}