Begoña de las Heras

ORCID: 0000-0003-3091-1684
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Research Areas
  • Genetics, Bioinformatics, and Biomedical Research
  • Hepatitis C virus research
  • Hepatitis B Virus Studies
  • Science, Research, and Medicine
  • Biological Research and Disease Studies
  • COVID-19 and healthcare impacts
  • Thyroid Cancer Diagnosis and Treatment
  • Pancreatic and Hepatic Oncology Research
  • Cancer Treatment and Pharmacology
  • Liver Disease Diagnosis and Treatment
  • Lung Cancer Treatments and Mutations
  • Cancer Cells and Metastasis
  • PARP inhibition in cancer therapy
  • Health Systems, Economic Evaluations, Quality of Life
  • Biomedical Ethics and Regulation
  • Economic and Financial Impacts of Cancer
  • Chemical Reactions and Isotopes
  • Cancer Genomics and Diagnostics
  • 3D Printing in Biomedical Research
  • Gastrointestinal motility and disorders
  • Cancer Immunotherapy and Biomarkers
  • Organ Transplantation Techniques and Outcomes
  • Angiogenesis and VEGF in Cancer
  • Neutropenia and Cancer Infections
  • Intestinal Malrotation and Obstruction Disorders

PharmaMar (Spain)
2007-2023

LabCorp (United States)
2021-2022

Covance (United States)
2020

Eisai (United Kingdom)
2012-2015

Royal Marsden Hospital
2007-2009

Institute of Cancer Research
2007-2009

Cancer Research UK
2007-2009

Erasmus MC
2009

Hospital de Basurto
1997-2008

Institut Català d'Oncologia
2005-2007

Lenvatinib, an oral inhibitor of vascular endothelial growth factor receptors 1, 2, and 3, fibroblast 1 through 4, platelet-derived receptor α, RET, KIT, showed clinical activity in a phase 2 study involving patients with differentiated thyroid cancer that was refractory to radioiodine (iodine-131).In our randomized, double-blind, multicenter progressive iodine-131, we randomly assigned 261 receive lenvatinib (at daily dose 24 mg per day 28-day cycles) 131 placebo. At the time disease...

10.1056/nejmoa1406470 article EN New England Journal of Medicine 2015-02-11

in the epidemiology and clinical association of sickle cell disease with malaria, bacterial viral infections (including SARS-CoV-2), suggests that should be included Integrated Management Childhood Illness programme to improve outcomes.Provision for diagnosis treatment incorporated into national health systems programming, an emphasis on delivering services primary care setting.COVID-19 is expected herald a global economic recession might result contraction international funding development...

10.1016/s2352-3026(20)30123-x article EN other-oa The Lancet Haematology 2020-04-24

Summary Three cardinal manifestations of neoplasia, namely inflammation, immune dysfunction, and coagulopathy are also seen in patients with severe SARS-CoV-2 infection, providing a biological rationale for testing selected anticancer drugs their ability to control the symptoms and/or modify course COVID-19.

10.1038/s41416-020-0948-x article EN cc-by British Journal of Cancer 2020-06-22

As a result of the unprecedented challenges imposed by COVID-19 pandemic on enrollment to cancer clinical trials, there has been an urgency identify and incorporate new solutions mitigate these difficulties. The concept decentralized or hybrid trials rapidly gained currency, given that it aims reduce patient burden, increase retention, preserve quality life, while also increasing efficiency trial logistics. Therefore, environment is moving toward remote collection assessment data,...

10.1177/20552076221099997 article EN cc-by-nc-nd Digital Health 2022-01-01

Abstract A dose-escalation, phase I study evaluated the safety, pharmacokinetics, pharmacogenomics, and efficacy of ES-285, a novel agent isolated from marine mollusc, in adult cancer patients. Patients received 24-hour i.v. infusion ES-285 once every 3 weeks until disease progression or unacceptable toxicity. The starting dose was 4 mg/m2. Dose escalation cohorts at least three patients proceeded according to worst toxicity observed previous cohort. Twenty-eight were treated with 72 courses...

10.1158/1535-7163.mct-08-1167 article EN Molecular Cancer Therapeutics 2009-06-01

LBA6008 Background: Lenvatinib (LEN) is an oral tyrosine kinase inhibitor of the VEGFR1-3, FGFR1-4, PDGFRβ, RET, and KIT signaling networks. Based on efficacy results phase 2 study patients (pts) with 131 I-refractory differentiated thyroid cancer (RR-DTC), this 3 Study (E7080) in Differentiated Cancer Thyroid (SELECT) was developed. Methods: This randomized, double-blind, placebo (PBO)-controlled enrolled pts RR-DTC documented disease progression within 13 months (mo). Pts were stratified...

10.1200/jco.2014.32.18_suppl.lba6008 article EN Journal of Clinical Oncology 2014-06-20

The coronavirus disease-2019 (COVID-19) pandemic has had a significant impact on patients with underlying malignancy. In this article, we summarize emerging data related to cancer and COVID-19. Among COVID-19, higher proportion have an diagnosis of than seen in the general population. Also, malignancy are likely be more vulnerable population contracting Mortality is significantly both COVID-19 compared overall COVID-19-positive early months saw decrease screening diagnosis, as well...

10.1007/s40487-020-00124-2 article EN cc-by-nc Oncology and Therapy 2020-08-04

Abstract Purpose: Receptor tyrosine kinases c-Met and Ron transduce signals regulating cell migration matrix invasion. This phase I dose-escalation trial tested golvatinib, a highly potent, small-molecule, ATP-competitive inhibitor of multiple members the Eph receptor family plus c-Kit Ron. Experimental Design: Patients with advanced solid tumors received golvatinib orally, once daily, continuously. Using “3+3” design, dosing started at 100 mg escalating to maximum tolerated dose (MTD)...

10.1158/1078-0432.ccr-14-0409 article EN Clinical Cancer Research 2014-10-03

Case Reports| April 15 2011 Circulating Cancer Cells in Peripheral Blood: A Report Subject Area: Pathology and Cell Biology Nuria Rodríguez-Salas; Rodríguez-Salas From the Departments of Oncology Analytic Hematology, Hospital Universitario La Paz, Madrid, Spain. Search for other works by this author on: This Site PubMed Google Scholar Ana M. Jiménez-Gordo; Jiménez-Gordo Enrique González; González Begoña de las Heras; Heras Pilar Zamora; Zamora Espinosa; Espinosa Mercedes Fernández Castro;...

10.1159/000326367 article EN Acta Cytologica 2000-01-01

3030 Background: Golvatinib is a highly potent, small molecule ATP-competitive inhibitor of the c-Met receptor tyrosine kinase and multiple members Eph family as well c-Kit Ron, based on isolated assays. showed preclinical evidence anti-tumor activity. This phase 1 study was performed to determine MTD, safety, PK, PD preliminary activity golvatinib. Methods: Patients (pts) with advanced solid tumors, ECOG PS 0-1, ≥ 18 years (yrs) adequate organ function were eligible. administered orally,...

10.1200/jco.2012.30.15_suppl.3030 article EN Journal of Clinical Oncology 2012-05-20

2513 Background: PM02734 is a chemically synthesized depsipeptide with broad spectrum of activity against solid tumors in vitro (breast, colon, lung, neuroblastoma, prostate, sarcoma and thyroid) vivo melanoma); as well an acceptable non-clinical toxicology profile. Methods: Patients (n=20) metastatic or advanced were enrolled phase I, open-label, dose-escalating study to assess safety, tolerability, pharmacokinetics (PK) infused over 30 min every 21 days (d). The starting dose was 90...

10.1200/jco.2008.26.15_suppl.2513 article EN Journal of Clinical Oncology 2008-05-20

LBA6008 Background: Lenvatinib (LEN) is an oral tyrosine kinase inhibitor of the VEGFR1-3, FGFR1-4, PDGFRβ, RET, and KIT signaling networks. Based on efficacy results phase 2 study patients (pts) with 131I-refractory differentiated thyroid cancer (RR-DTC), this 3 Study (E7080) in Differentiated Cancer Thyroid (SELECT) was developed. Methods: This randomized, double-blind, placebo (PBO)-controlled enrolled pts RR-DTC documented disease progression within 13 months (mo). Pts were stratified by...

10.1200/jco.2014.32.15_suppl.lba6008 article EN Journal of Clinical Oncology 2014-05-20

Summary Aplastic anaemia complicating hepatitis is a rare but well-documented phenomenon; however in many patients the cause remains unknown. We present 24-year-old man with well-defined community-acquired hepatitis, probably due to G virus (HGV), who developed severe aplastic anaemia. In this case, absence of other agents likely clinical manifestations, and detection HGV RNA at time illness, clearly point agent as being responsible for both Further studies serial serum samples meticulous...

10.1136/pgmj.75.881.159 article EN Postgraduate Medical Journal 1999-03-01

e19531^ Background: E7449 is an orally bioavailable, likely brain penetrable, potent small-molecule inhibitor of poly (ADP-ribose) polymerase (PARP) 1 and PARP 2 with IC50 1.0 1.2 nmol/L respectively. a poor P-gp substrate. Preclinically, potentiates the antitumor activity chemotherapy radiotherapy has as single-agent in BRCA-deficient other tumors. A Phase study single agent underway to determine MTD, safety, PK, PD, preliminary perform exploratory biomarker analysis. Methods: Patients...

10.1200/jco.2014.32.15_suppl.e19531 article EN Journal of Clinical Oncology 2014-05-20

2059 Background: KF is a cytotoxic cyclic peptide derived from the mollusc Elysia rufescens. Two prior phase 1 studies assessed hour (h) infusions in 5-day 3-weekly and 1-day weekly schedules. The recommended doses (RD) were 560 650 μg/m2, respectively. dose limiting toxicity (DLT) was reversible transaminase elevation (RTE) which acute, asymptomatic believed to be related Cmax. A prolonged infusion may attenuate this effect allow higher non toxic systemic exposure. Therefore current trial...

10.1200/jco.2005.23.16_suppl.2059 article EN Journal of Clinical Oncology 2005-06-01
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