Abraham C.F. Leung

ORCID: 0009-0000-8555-1378
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About
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Research Areas
  • Monoclonal and Polyclonal Antibodies Research
  • HER2/EGFR in Cancer Research
  • Radiopharmaceutical Chemistry and Applications
  • Biosimilars and Bioanalytical Methods
  • Cancer Immunotherapy and Biomarkers
  • Cancer Treatment and Pharmacology
  • Immunotherapy and Immune Responses
  • CAR-T cell therapy research
  • Cutaneous Melanoma Detection and Management
  • Advanced Breast Cancer Therapies
  • Cancer Research and Treatments
  • Cancer, Stress, Anesthesia, and Immune Response
  • Breast Cancer Treatment Studies
  • Cancer therapeutics and mechanisms
  • Ovarian cancer diagnosis and treatment
  • Protein Degradation and Inhibitors
  • Multiple Myeloma Research and Treatments
  • Brain Metastases and Treatment
  • Lymphoma Diagnosis and Treatment
  • Endometrial and Cervical Cancer Treatments
  • Retinoids in leukemia and cellular processes
  • Lung Cancer Treatments and Mutations
  • Lung Cancer Research Studies
  • Estrogen and related hormone effects
  • Histone Deacetylase Inhibitors Research

Pfizer (United States)
2019-2023

Dynavax Technologies (United States)
2016-2018

Merck & Co., Inc., Rahway, NJ, USA (United States)
2016

Centre Hospitalier Universitaire de Liège
2011-2013

Gynecologic Oncology Associates
2013

Providence College
2013

Nektar Therapeutics (United States)
2012

Institut Jules Bordet
2011

Université Libre de Bruxelles
2011

Velindre Cancer Centre
2011

Abstract PD-1 inhibitors are approved for treating advanced melanoma, but resistance has been observed. This phase Ib trial evaluated intratumoral SD-101, a synthetic CpG oligonucleotide that stimulates Toll-like receptor 9 (TLR9), in combination with pembrolizumab patients unresectable or metastatic malignant melanoma. The most common adverse events related to SD-101 were injection-site reactions and transient, mild-to-moderate “flu-like” symptoms. Among the naïve anti–PD-1 therapy, overall...

10.1158/2159-8290.cd-18-0280 article EN Cancer Discovery 2018-08-28

Abstract PF-06804103 is an anti-HER2 antibody–drug conjugate with auristatin payload. We evaluated its safety, tolerability, and antitumor activity in patients advanced/unresectable or metastatic breast gastric cancers. This multicenter, open-label, first-in-human, phase 1 study (NCT03284723) comprised dose escalation (P1) expansion (P2). In P1, adults HER2+ cancer received 0.15–5.0 mg/kg intravenously once/21 days (Q3W); P2, HER2-low (IHC 1+ IHC 2+/ISH−) 3.0 4.0 Q3W. The primary endpoints...

10.1158/1535-7163.mct-23-0101 article EN cc-by-nc-nd Molecular Cancer Therapeutics 2023-07-07

1039 Background: PF-06804103 is an anti-HER2 immunoglobulin G1 antibody-drug conjugate (ADC), comprising monoclonal antibody conjugated with a cleavable linker to the cytotoxic agent Aur0101. demonstrated strong activity in low high HER2-expressing preclinical tumor models. In this study, safety and tolerability of was assessed patients advanced breast cancer (BC) or gastric (GC). Methods: This multi-center, open-label, first-in-patient, phase I study (NCT03284723) has two parts: dose...

10.1200/jco.2020.38.15_suppl.1039 article EN Journal of Clinical Oncology 2020-05-20

Etirinotecan pegol (NKTR-102) is a unique, long-acting topoisomerase-I inhibitor with prolonged systemic exposure to SN38 (7-ethyl-10-hydroxycamptothecin), the active metabolite of irinotecan. This randomized phase II trial investigated two dosing schedules etirinotecan in patients platinum-resistant/refractory ovarian carcinoma.

10.1200/jco.2012.45.1278 article EN Journal of Clinical Oncology 2013-10-01

e14123 Background: Bromodomains (BRD) bind to acetylated lysine residues on histone tails and are directly involved in remodeling chromatin regulating transcription, thus representing a potentially important anticancer target. MK-8628 is synthetic small molecule targeting BRD2, 3 4 of the tandem-BRD-containing family transcriptional regulators, BET proteins. It has shown cytotoxic activity vitro GB models. We conducted phase IIa trial with dose optimization determine MTD, safety clinical pts...

10.1200/jco.2016.34.15_suppl.e14123 article EN Journal of Clinical Oncology 2016-05-20

Abstract Background and Objectives: SD-101 is a synthetic CpG-ODN agonist of TLR9 that stimulates dendritic cells to release IFN-alpha mature into antigen presenting activate T cell anti-tumor responses. Pembrolizumab PD-1 inhibitor has demonstrated activity in HNSCC with ORR 14%. Study DV3-MEL-01 (NCT02521870) assesses the safety preliminary efficacy combination pembrolizumab patients recurrent or metastatic HNSCC. Methods: In phase 2 expansion cohort for anti-PD-1 treatment naïve patients,...

10.1158/1538-7445.am2018-ct098 article EN Cancer Research 2018-07-01

9550 Background: SD-101 is a synthetic CpG-ODN agonist of TLR 9 that stimulates dendritic cells to release IFN-alpha and mature into antigen presenting activate T cell anti-tumor responses. Pembro PD-1 inhibitor approved for the treatment metastatic melanoma. This study, MEL-01 (NCT02521870), assesses safety preliminary efficacy in combination with pembro stage IIIC-IV Methods: A modified 3+3 design was used dose escalation 1, 2, 4, 8 mg injected single tumor lesion Q1W x 4 then Q3W 7 (200...

10.1200/jco.2017.35.15_suppl.9550 article EN Journal of Clinical Oncology 2017-05-20

9513 Background: SD-101 is a CpG-ODN agonist of TLR9. Pembrolizumab PD-1 inhibitor. DV3-MEL-01 (NCT02521870) assesses safety and preliminary efficacy the combination pembrolizumab in stage IIIC-IV melanoma. Methods: Phase 1b evaluated at multiple doses injected single tumor Q1W x 4 then Q3W 7 with fixed dose (200 mg IV Q3W); both drugs started on D1. 2 evaluating 8 1 lesion mg/lesion 2-4 lesions beginning 21 days after first pembrolizumab. First scan was performed D64, 6 weeks therapy....

10.1200/jco.2018.36.15_suppl.9513 article EN Journal of Clinical Oncology 2018-05-20

605 Background: T-DM1, an antibody–drug conjugate comprising trastuzumab, DM1 (microtubule inhibitor), and a stable linker, is approved for patients (pts) with HER2-positive metastatic BC previously treated trastuzumab taxane. In two phase 3 studies, T-DM1 prolonged progression-free survival (PFS; EMILIA, TH3RESA) overall (EMILIA) v control arms. Here we examine the relationship between tissue BM related to HER2 pathway PFS in TH3RESA (NCT01419197). Methods: Pts had prior taxane therapy ≥2...

10.1200/jco.2014.32.15_suppl.605 article EN Journal of Clinical Oncology 2014-05-20

153 Background: Progression-free survival and objective response rate were significantly improved with T-DM1 vs TPC in TH3RESA. The impact of treatment on quality life is a key aspect determining value. Here we present the PRO results from TH3RESA study. Methods: Patients randomized 2:1 to (3.6 mg/kg every 21 days) or TPC. asked complete EORTC QLQ-C30 (a 30-item questionnaire assessing symptom bother, functioning health status) QLQ-BM22 22-item survey evaluating pain bone metastases) at...

10.1200/jco.2014.32.26_suppl.153 article EN Journal of Clinical Oncology 2014-09-10

<div>Abstract<p>PF-06804103 is an anti-HER2 antibody-drug conjugate with auristatin payload. We evaluated its safety, tolerability, and antitumor activity in patients advanced/unresectable or metastatic breast cancer gastric cancer. This multicenter, open-label, first-in-human, phase 1 study (NCT03284723) comprised dose escalation (P1) expansion (P2). In P1, adults HER2+ received PF-06804103 0.15–5.0 mg/kg intravenously once/21 days (Q3W); P2, HER2-low (immunohistochemistry [IHC]...

10.1158/1535-7163.c.6784861.v3 preprint EN 2024-09-16
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