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  • 1
    In: JAMA, American Medical Association (AMA), Vol. 329, No. 14 ( 2023-04-11), p. 1183-
    Abstract: Overactivation of the renin-angiotensin system (RAS) may contribute to poor clinical outcomes in patients with COVID-19. Objective To determine whether angiotensin-converting enzyme (ACE) inhibitor or angiotensin receptor blocker (ARB) initiation improves outcomes in patients hospitalized for COVID-19. DESIGN, SETTING, AND PARTICIPANTS In an ongoing, adaptive platform randomized clinical trial, 721 critically ill and 58 non–critically ill hospitalized adults were randomized to receive an RAS inhibitor or control between March 16, 2021, and February 25, 2022, at 69 sites in 7 countries (final follow-up on June 1, 2022). INTERVENTIONS Patients were randomized to receive open-label initiation of an ACE inhibitor (n = 257), ARB (n = 248), ARB in combination with DMX-200 (a chemokine receptor-2 inhibitor; n = 10), or no RAS inhibitor (control; n = 264) for up to 10 days. MAIN OUTCOMES AND MEASURES The primary outcome was organ support–free days, a composite of hospital survival and days alive without cardiovascular or respiratory organ support through 21 days. The primary analysis was a bayesian cumulative logistic model. Odds ratios (ORs) greater than 1 represent improved outcomes. RESULTS On February 25, 2022, enrollment was discontinued due to safety concerns. Among 679 critically ill patients with available primary outcome data, the median age was 56 years and 239 participants (35.2%) were women. Median (IQR) organ support–free days among critically ill patients was 10 (–1 to 16) in the ACE inhibitor group (n = 231), 8 (–1 to 17) in the ARB group (n = 217), and 12 (0 to 17) in the control group (n = 231) (median adjusted odds ratios of 0.77 [95% bayesian credible interval, 0.58-1.06] for improvement for ACE inhibitor and 0.76 [95% credible interval, 0.56-1.05] for ARB compared with control). The posterior probabilities that ACE inhibitors and ARBs worsened organ support–free days compared with control were 94.9% and 95.4%, respectively. Hospital survival occurred in 166 of 231 critically ill participants (71.9%) in the ACE inhibitor group, 152 of 217 (70.0%) in the ARB group, and 182 of 231 (78.8%) in the control group (posterior probabilities that ACE inhibitor and ARB worsened hospital survival compared with control were 95.3% and 98.1%, respectively). CONCLUSIONS AND RELEVANCE In this trial, among critically ill adults with COVID-19, initiation of an ACE inhibitor or ARB did not improve, and likely worsened, clinical outcomes. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02735707
    Type of Medium: Online Resource
    ISSN: 0098-7484
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    Language: English
    Publisher: American Medical Association (AMA)
    Publication Date: 2023
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    detail.hit.zdb_id: 2018410-4
    SSG: 5,21
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  • 2
    In: MQRInvestigar, MQRinvestigar, Vol. 7, No. 1 ( 2023-01-26), p. 1178-1194
    Abstract:  La infección de vías urinarias es una enfermedad de la que se tiene conocimiento en los actuales momentos, en la región de América Latina afecta en tal proporción a la población y en la mujer gestante no es la excepción, se caracteriza por la proliferación de las bacterias en las vías urinarias o uretra. Por lo cual, la investigación tuvo como objetivo, evaluar la prevalencia, diagnóstico y complicaciones de la infección urinaria en las mujeres embarazadas en América Latina. La metodología aplicada fue de diseño documental, bibliográfico, descriptivo y explorativo, aplicando a su vez criterios de inclusión y exclusión, con estrategia de búsqueda en bases de datos primarias como Scielo, Dialnet, Pubmed, Google Académico. En la cual se obtuvieron datos de la prevalencia, encontrándose variaciones de la misma desde 15% e incluso 58% hasta 81%. A su vez se caracterizó el diagnóstico identificando los síntomas de dolor en la zona lumbar, disuria polaquiuria, fiebre, náuseas y vómito, aunque la mayoría presentan bacteriuria asintomática. Asimismo, es necesario la realización de pruebas como examen general de orina donde se detecta leucocituria bacterias y hematuria y el examen de urocultivo para identificar el uropatógeno. Esta puede repercutir en complicaciones, la más identificada fue parto pretérmino, seguida de aborto, sepsis neonatal y muerte fetal. Se puede concluir que este tipo de infección, debe ser considerada un factor de riesgo en el desarrollo de complicaciones en la gestante, siendo conveniente pruebas de rutina para la detección temprana de la misma.  
    Type of Medium: Online Resource
    ISSN: 2588-0659
    Language: Unknown
    Publisher: MQRinvestigar
    Publication Date: 2023
    detail.hit.zdb_id: 3120371-1
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  • 3
    In: Journal for ImmunoTherapy of Cancer, BMJ, Vol. 9, No. Suppl 2 ( 2021-11), p. A831-A831
    Abstract: 4-1BB (CD137) is an activation-induced co-stimulatory receptor that regulates immune responses of activated CD8+ T cells and NK cells. Leveraging the therapeutic benefit of 1st generation 4-1BB monospecifics has been challenging due to dose limiting hepatotoxicity. To minimize systemic immune toxicities and enhance activity at the tumor site, we have developed a novel 4-1BB x 5T4 bispecific antibody that stimulates 4-1BB function only when co-engaged with 5T4, a highly selective tumor-associated antigen. The combined preclinical dataset presented here provides an overview of the potential indication landscape, mechanism of action and the efficacy and safety profile of ALG.APV-527, supporting its advancement into the clinic. Methods Genevestigator Software was used to analyze curated transcriptomic data from bulk tumor mRNA-sequencing data libraries and from single cell RNA-seq libraries for the expression profiles of CD8, 4-1BB and 5T4 across selected human solid tumor datasets. ADCC and ADCP reporter bioassays were utilized to assess Fc engagement by ALG.APV-527. For in vitro tumor lysis studies, human T cells were co-cultured with labelled tumor cells and sub-optimally activated with anti-CD3. Cytotoxicity of tumor cells were continually assessed using a Live-Cell Analysis System. Results Dual expression of CD8 and 5T4 occurred in many tumor types and correlated well with indications that are pursued in the clinical development of ALG.APV-527. 4-1BB expression was observed in tumor-derived lymphoid subpopulations, especially in those with an exhausted phenotype. Since ALG.APV-527 is designed with a non-Fcγ receptor binding Fc, minimal ADCC & ADCP was induced in vitro. Additionally, ALG.APV-527 enhanced primary immune cell-mediated killing of 5T4-expressing tumor cells when compared to anti-CD3 alone, demonstrating the potential benefit of 4-1BB agonism for enhancing cytotoxic anti-tumor responses in the clinic. Conclusions ALG. APV-527 is designed to elicit safe and efficacious 4-1BB-mediated antitumor activity in a range of 5T4-expressing tumor indications. Transcriptional profiling of patient tumor samples demonstrates 4-1BB expression in multiple tumor-infiltrating lymphocyte subsets and identifies potential indications with 5T4 expression and CD8+ T cell infiltration. The unique design of the molecule minimizes systemic immune activation and hepatotoxicity, allowing for highly efficacious tumor-specific responses as demonstrated by potent activity in in vitro models. Based on these preclinical data, ALG.APV-527 is a promising anti-cancer therapeutic for the treatment of a variety of 5T4-expressing solid tumors and is progressing towards a phase I clinical trial in 2021.
    Type of Medium: Online Resource
    ISSN: 2051-1426
    Language: English
    Publisher: BMJ
    Publication Date: 2021
    detail.hit.zdb_id: 2719863-7
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  • 4
    In: Nature, Springer Science and Business Media LLC, Vol. 617, No. 7962 ( 2023-05-25), p. 764-768
    Abstract: Critical illness in COVID-19 is an extreme and clinically homogeneous disease phenotype that we have previously shown 1 to be highly efficient for discovery of genetic associations 2 . Despite the advanced stage of illness at presentation, we have shown that host genetics in patients who are critically ill with COVID-19 can identify immunomodulatory therapies with strong beneficial effects in this group 3 . Here we analyse 24,202 cases of COVID-19 with critical illness comprising a combination of microarray genotype and whole-genome sequencing data from cases of critical illness in the international GenOMICC (11,440 cases) study, combined with other studies recruiting hospitalized patients with a strong focus on severe and critical disease: ISARIC4C (676 cases) and the SCOURGE consortium (5,934 cases). To put these results in the context of existing work, we conduct a meta-analysis of the new GenOMICC genome-wide association study (GWAS) results with previously published data. We find 49 genome-wide significant associations, of which 16 have not been reported previously. To investigate the therapeutic implications of these findings, we infer the structural consequences of protein-coding variants, and combine our GWAS results with gene expression data using a monocyte transcriptome-wide association study (TWAS) model, as well as gene and protein expression using Mendelian randomization. We identify potentially druggable targets in multiple systems, including inflammatory signalling ( JAK1 ), monocyte–macrophage activation and endothelial permeability ( PDE4A ), immunometabolism ( SLC2A5 and AK5 ), and host factors required for viral entry and replication ( TMPRSS2 and RAB2A ).
    Type of Medium: Online Resource
    ISSN: 0028-0836 , 1476-4687
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    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
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    detail.hit.zdb_id: 1413423-8
    SSG: 11
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  • 5
    In: Nature, Springer Science and Business Media LLC, Vol. 619, No. 7971 ( 2023-07-27), p. E61-E61
    Type of Medium: Online Resource
    ISSN: 0028-0836 , 1476-4687
    RVK:
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    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 120714-3
    detail.hit.zdb_id: 1413423-8
    SSG: 11
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  • 6
    In: Nature, Springer Science and Business Media LLC, Vol. 621, No. 7977 ( 2023-09-07), p. E7-E26
    Type of Medium: Online Resource
    ISSN: 0028-0836 , 1476-4687
    RVK:
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    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 120714-3
    detail.hit.zdb_id: 1413423-8
    SSG: 11
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  • 7
    In: Cancer Research, American Association for Cancer Research (AACR), Vol. 82, No. 12_Supplement ( 2022-06-15), p. 3434-3434
    Abstract: APVO442 is a bispecific therapeutic candidate targeting PSMA and CD3 for redirection of T cell responses against PSMA-expressing solid tumors. The candidate bispecific was designed to have unique pharmacokinetic and safety properties to potentially maximize robust anti-tumor responses. APVO442 is designed with Aptevo’s ADAPTIR-FLEX࣪ technology to generate a molecule with low-affinity monovalent CD3 engagement, paired with high-affinity bivalent PSMA binding intended to be tumor - dependent while inducting optimal T-cell stimulation within the tumor microenvironment. The unique engineering of APVO442 reduces the potential peripheral CD3 T cell binding, minimizing the potential for on-target toxicity, such as peripheral cytokine release, while simultaneously increasing the likelihood to deliver an effective concentration of APVO442 locally within solid tumors. Preclinical data demonstrate that APVO442 is able to activate T cells and mediate directed cytotoxicity against PSMA-expressing tumor targets with comparable potency to α-PSMA x α-CD3 constructs with varying CD3 affinity or avidity both in vitro and in vivo. The CD3 activity is dependent on PSMA crosslinking as activity is not observed in the absence of tumor target, in line with the silenced Fc engineered into APVO442. Importantly, cytokine release was not observed in peripheral immune subsets in the absence of tumor targets, despite a beneficial cytokine profile observed in the presence of PSMA positive tumor cell lines. The unique biology elicited by APVO442 induces distinct kinetic activation of downstream transcriptional regulators following monovalent TCR engagement of APVO442 associated with reduced early signaling, but overall, a more sustained activation than higher affinity variants. In addition, APVO442 induces a distinct phenotypic profile on human T cells associated with optimal function and memory responses only in the presence of tumor targets. Further, combination of APVO442 with additional costimulatory agonists supports improved T cell activation and anti-tumor cytotoxicity in vitro. These data support the potential for unique clinical combination of APVO442 with immuno-oncology modalities that may support improved benefit in PSMA positive indications such as metastatic castration resistant prostate cancer. APVO442 is undergoing further preclinical in vitro and in vivo characterization in support of the IND-enabling package. Citation Format: Rebecca Gottschalk, Robert Miller, Brian Woodruff, Ashly Lucas, Elizabeth Haglin, Peter Pavlik, Michelle H. Nelson, Hilario J. Ramos. APVO442 is a distinct PSMA x CD3 targeted bispecific candidate designed to optimize T cell fitness and distribution to solid tumors [abstract] . In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 3434.
    Type of Medium: Online Resource
    ISSN: 1538-7445
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2022
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    detail.hit.zdb_id: 1432-1
    detail.hit.zdb_id: 410466-3
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  • 8
    In: Journal for ImmunoTherapy of Cancer, BMJ, Vol. 9, No. Suppl 2 ( 2021-11), p. A830-A830
    Abstract: APVO603 is a dual targeting bispecific antibody for 4-1BB (CD137) and OX40 (CD134), engineered with Aptevo's ADAPTIRTM technology. We have previously shown that the distinct characteristics of APVO603 may enable conditional agonism of 4-1BB and OX40 only when cross-linked through engagement of the other receptor via cis and/or trans cellular interactions. Thus, APVO603 is designed with the potential to overcome both the on-target toxicity and limited efficacy observed with 4-1BB and OX40 monoclonal antibody treatment in the clinic. Methods Genevestigator Software was used to analyze curated transcriptomic data for the expression profiles of OX40 and 4-1BB across select human heme and solid cancer patient sample data sets, as well as, non diseased tissue. Primary inducible Treg (iTreg) cells were sub-optimally stimulated with an anti-CD3/CD28 antibody and cell proliferation was assessed using CFSE-labelled. Cytokines were measured using intracellular flow-based methods. For in vitro tumor lysis studies, activated T cells were co-cultured with Nuclight-labelled tumor cells expressing a tumor-associated antigen (TAA) and activated with TAA x CD3 bispecific protein. Live tumor cells were continually assessed using the Incucyte Live-Cell Analysis System and Cell-By-Cell Software Module. Results OX40 and 4-1BB displayed distinct tumor expression profiles, however, several tumor indications were identified with high co-expression and may aid in identifying indications for the clinical development of APVO603. In vitro, APVO603 favored activation of effector T cell subsets and had minimal impact in augmenting iTreg cells proliferation, cytokine production or expression of effector-related molecules, despite the fact that a portion of the iTreg cells expressed OX40 and 4-1BB. The mechanistic activity of APVO603 resulted in dose-dependent control of in vitro tumor growth when paired with a T-cell activating TAA x CD3 bispecific under standard conditions or those leading to T cell exhaustion. In preclinical assays using PBMCs sub-optimally stimulated with TAA x CD3, APVO603 enhanced TAA-expressing tumor cell lysis when compared to TAA x CD3 alone. Conclusions APVO603 is a dual-agonistic bispecific antibody that augments the effector function of activated CD4+ and CD8+ T cells and NK cells, but not iTreg cells, in a dose-dependent manner and reduces growth of tumors in vitro and in vivo. Further, mechanistic evaluation supports the ability of APVO603 to pair with T-cell modulating IO approaches to support a more fit T cell response and favorable TME. This preclinical data supports further development of APVO603, a promising immuno-oncology therapeutic with potential for benefit in hematologic and solid tumors.
    Type of Medium: Online Resource
    ISSN: 2051-1426
    Language: English
    Publisher: BMJ
    Publication Date: 2021
    detail.hit.zdb_id: 2719863-7
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  • 9
    In: MQRInvestigar, MQRinvestigar, Vol. 6, No. 3 ( 2022-08-24), p. 1023-1049
    Abstract: La automedicación es conocida en la actualidad como la situación por la que los pacientes ingieren medicamentos sin prescripción o participación de un médico de forma voluntaria. Esta trae consigo aspectos negativos para su salud, ya que puede conllevar a daños orgánicos o al surgimiento de enfermedades subyacentes como las de origen hepático.  El objetivo de este trabajo es “analizar abordaje actual de la automedicación y enfermedades subyacentes”. Cuya metodología es de revisión sistemática documental científico en base de información de artículos que fueron seleccionados siendo un total de 13 artículos científicos, dentro de los cuales se obtienen los resultados de la investigación. Se menciona que la automedicación es más frecuente en enfermedades como la gripe, dolor, y fiebre. Los medicamentos más consumidos que involucran a estas enfermedades son la Paracetamol, el Diclofenaco, Ibuprofeno, Omeprazol, Vitaminas, Hiero, Loratadina, Amoxicilina, Azitromicina, etc. Dentro de las enfermedades adyacentes que aparecen, se tiene a la hepatotoxicidad, Arritmias, enfermedades gastrointestinales, enfermedades renales y problemas en el Sistema nervioso. Esta práctica representa un cuidado especial y debe ser tomada en cuenta por su frecuencia como por sus repercusiones. Su abordaje está basado en medidas cautelares y principales basadas en la educación activa y participación, a su vez debe realizarse desde un enfoque multifactorial y multidisciplinar, que permita conocer los sucesos negativos de sus riesgos, los beneficios de una buena medicación bajo supervisión, el uso racional de medicamentos y la actitud clara frente a la demanda de medicamentos en la práctica clínica diaria.
    Type of Medium: Online Resource
    ISSN: 2588-0659
    Language: Unknown
    Publisher: MQRinvestigar
    Publication Date: 2022
    detail.hit.zdb_id: 3120371-1
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