Pharmaceutical Chemistry Expert Witness
Dr. Paul Abato is a Medicinal Chemist. His expertise includes drug research, medicinal chemistry, organic chemistry, drug formulation for; IT, IV, IP, ICV, IN, IM and oral dosing routs, stability studies, extensive structure-activity relationships, efficacy, pharmacokinetics, as well as all pre-clinical testing required for IND submission to the FDA.
Dr. Abato was awarded the prestigious “Heroes of Chemistry Award” by the American Chemical Society in 2019 for his contribution to NUZYRA, the latest antibiotic that works on antibacterial resistant bacteria.
Additionally, he has developed qualified clinical candidates for Spinal Muscular Atrophy (SMA) and Multiple Sclerosis. As a Medicinal Chemist, Dr. Abato has also conducted research in the areas of Malaria, Tuberculosis and Cancer.
Dr. Abato provides consulting services for medicinal chemistry, drug formulation, chemistry manufacturing and controls, literature search/summary and management of CROs. Presently Dr. Abato is consulting for Bill and Melinda Medical Research Institute.
Expert Witness Consulting
Dr. Abato has been involved in 6 cases, been deposed 3 times and has testified at trial in a federal court.
He has consulted for major players on the generic and branded side. Dr. Abato is familiar with Hatch-Waxman / ANDA type litigation. He has also been involved with a high stakes trademark infringement case within the synthetic biology market space.
Upload Dr. Abato's CV found on the link below, which includes a complete list of case numbers and law firms that he has represented.
Dr. Abato provides professional consulting and expert witness services in the area of pharmaceutical technology. His expertise includes drug research, drug formulation, pharmacokinetics and pre-clinical testing.
Areas of Expertise
Paul Abato Consulting in the Social NetworksLinkedIn
Paul Abato Consulting, Providence RI 6/1/14-Present
DLA Piper undisclosed client 7/1/21-present
• Provided opening and rebuttal reports for a trademark dispute between major players within the synthetic biology landscape, I have been deposed and am presently involved in pre-trial preparation.
The Bill and Melinda Gates Medical Research Institute 12/1/19-Present
• Provide support in the development of drug combinations to treat resistant TB infections.
Norton Rose Fulbright 5/1/21- 6/7/21
• Provided research and expert opinions regarding purported false positive results of a branded breathalyzer, Soberlink®.
• My assertions resulted in a favorable outcome for the client
Missouri Board of Pharmacy 5/22/19
• Provided a consulting webinar regarding drug product degradation during mail order pharmacy shipments, current 21 CFR, USP and FDA industry guidance documents related to the subject.
Greenberg Traurig. Client Sandoz 10/2/18-4/1/19
MER-L-002363-17 Sandoz inc. v. Cambridge Therapeutics Technologies LLC
Independent Expert Witness Consultant
• Provide professional consulting and expert witness services (opening report) relating to a contract dispute.
• Corroborated pharmaceutical manufacturing, stability studies, storage and shipping documents with 21 CFR to demonstrate compliance on the part of the client.
Taft Stettinius & Hollister LLP. Client Bionpharma 6/25/18- 10/5/18
1:16-cv-00876 Silvergate Pharmaceuticals Inc. v. Bionpharma Inc.
Independent Expert Witness Consultant
• Provided professional consulting and expert witness services relating to an ANDA case.
• Provided a Declaration regarding how a person skilled in the art would define specific claim terms
• Case dismissed shortly after my declaration
Parsons Behle and Latimer. Client Thorne 3/1/16- 5/29/18
2:13-cv-00784 Thorne Research et al Atlantic Pro-Nutrients
Independent Expert Witness Consultant
• Deposed for 7h.
• Gave testimony and was cross examined in a Federal Court for a trial by jury.
• Advised counsel on 2 in progress depositions.
• Provide professional consulting and expert witness services pertaining to patent infringement.
• Coordinated the search for and vetted other experts for the case.
• Coordinated and oversee the chemical analysis of the defendant's contested formulation.
• Preparing expert reports regarding the infringement of contested products over the asserted claims.
H3-Biomedicine, Cambridge, MA 6/1/17- 10/1/19
Pharmaceutical development Consultant
• Coordination of a radiolabeled compound synthesis, stability studies and formulation used in pharmacokinetic studies.
• Assist with CMC in support of clinical trial material
Parker Poe. Client Mylan 4/1/16- 12/19/16
1:15-cv-00026 Pfizer Inc et al v. Mylan Inc. et al
Independent Expert Witness Consultant
• Provided professional consulting and expert witness in connection with Hatch-Waxman ANDA patent infringement litigation.
• Prepared expert reports regarding the invalidity of plaintiff's patents concerning the reformulation of one of their products.
• Provided compelling arguments based on examples within the prior art, of why it would have been obvious to a person skilled in the art to at least try the formulation in the contested patents with a reasonable expectation of success
• Prepared reply reports in response to Plaintiff experts' responsive reports in which I reconfirmed my arguments as well as highlighted plaintiff's experts' contradictions and misrepresentations of the prior art.
• I was deposed by the plaintiff's counsel for 7 hours.
• I was also involved with the pre-trial preparation up until the parties settled.
Cemotics LLC, Providence RI 6/01/14- 1/01/16
Pharmaceutical Development Consultant
• Development of Arysphosphonium Salts (APS) as anti-cancer agents. Responsibilities include design of novel compounds, development of screening cascade and medicinal chemistry lead optimization efforts.
• Interact with vendors to facilitate whole cell screening, toxicity, in vivo efficacy and ADME.
• Developing a novel treatment for malaria that circumvents resistance, generation of preliminary data through outsourcing with vendors.
Roger Williams University Bristol RI, 9/1/20-Present
• Responsible for teaching Chemistry Laboratory classes.
Salve University Newport RI, 5/1/14-Present
• Responsible for teaching Organic Chemistry, Forensic Science and other lecture science classes.
Paratek Pharmaceuticals, Boston, MA 8/1/02-6/1/13
Biotech developing tetracycline therapeutics for anti-infective, anti-inflammatory and neurodegenerative diseases.
Principal Scientist/ Project Coordinator (Project Coordination/Lab work ~ 60%/40%) 01/09 – 06/13
• Project 1: Project Coordinator for Spinal Muscular Atrophy (SMA) program in preclinical development
• Co-authored a pre-IND application for the intrathecal administration of our clinical candidate for Spinal Muscular Atrophy (reviewed by the FDA 1/23/13).
• Responsible for design and development of intrathecal (IT) and intracerebroventricular (ICV) continuous and bolus formulations and dosing protocols for mice, rat and monkey studies.
• Designed and conducted stability studies and formulation studies for continuous dosing efficacy studies to be compatible with Alezet osmotic pumps.
• Worked with cross-functional teams in cell-biology, pharmacology, process chemistry and vendors that supported in vivo efficacy studies, DMPK and GLP toxicity studies.
• Responsible for synthesis of new compounds and lead optimization of medicinal chemistry efforts for SMA
• Outsourced and managed preclinical efficacy/PK testing of three compounds at multiple CROs to facilitate pre-clinical toxicity and further PK analysis of our clinical candidate in mice, rat and monkey.
• Contributed to grant writing for NIH and FSMA grants.
• Project 2: Developed a new antibacterial for bacterial resistant respiratory infections in cattle for Elanco.
Delivered an efficacious antibacterial compound for subcutaneous bolus dosing which would not tissue stain.
• Worked on additional projects as needed.
• Managed one direct report
Sr Scientist (Project Coordination/Lab work ~ 30%/70%) 01/06 – 01/09
• Worked on areas of anti-inflammation and functioned as the project coordinator for SMA.
• Responsible for synthesis of new derivatives, lead optimization, analysis of results from outsourced and in house in vitro studies, whole cell, pharmacology and in vivo studies.
• Worked with cross-functional teams in cell-biology, pharmacology, process chemistry as well as vendors that supported in vitro and in vivo efficacy studies.
• Developed HPLC purification methods for large-scale (6” diameter column) epimer separation of novel tetracycline derivatives previously not possible.
• Managed one direct report.
Scientist II 01/03 – 01/05
• Discovered and developed novel tetracyclines for the treatment of multiple sclerosis (MS) in collaboration with Serono. Delivered three validated pre-clinical tetracycline leads for MS.
• Developed drug formulation procedures that reduced tolerability issues when dosing IP and IV thereby enabling a wider therapeutic window with which to compare compounds using experimental autoimmune encephalomyelitis (EAE) mouse efficacy studies. Also developed improved formulations for sub Q and IM dosing.
• Responsible for synthesis of new derivatives, lead optimization and analysis of results from in vivo efficacy
• Worked with cross-functional teams in cell-biology, pharmacology and process chemistry.
• Built a micro reactor to developed an oxidation assay to elucidate the structure activity relationship for tetracycline oxidation/tissue staining, a potentially negative aspect of some tetracyclines. The assay's results correlated with tissue staining in vivo.
Scientist I 08/02 – 01/03
• Contributed to the development of pre-clinical candidates for hospital and community acquired severe bacterial infections.
• Optimized synthetic methods and developed purification protocols for two key tetracycline intermediates on a 100g scale. This work removed a huge bottleneck in the production of tetracycline derivatives
• One lead compound is currently in phase III trials (Omadacycline) and a second has completed Phase I.
Eikos Inc., Franklin, MA. 2/1/02 – 8/1/02
Biotech/material science, developing anti malaria drugs and incorporation of carbon nanotubes into polymers
• Managed all aspects of chemistry at Eikos. Conducted Polymer production reactions using a 50L reactor.
• Developed a solid phase organic synthesis protocol for the production of aminoquinoline antimalarials in support of an SBIR grant.
• Managed three direct reports.
Brown University, Providence RI. 6/01/96 – 2/12/02
Graduate Researcher, Department of Chemistry; PI Christopher T. Seto
Studied protease inhibitors and developed a novel enzymatic assay for screening catalysts for asymmetric reactions
• Optimized a novel class of protease inhibitors based on a cyclohexanone core
• Developed a protocol for the synthesis of cyclohexanone-based protease inhibitors on solid support.
• Designed and synthesized a 400-member library of these cyclohexanone inhibitors on solid support.
• Developed an enzymatic assay for high-throughput screening of catalysts for asymmetric reactions.
• Developed methodology to conduct assays in a 384 well format to assess inhibition constants for a library of peptidomimetic compounds against various proteases such as cathepsin B, plasmin, papain, trypsin, thrombin and kallikrein
• Monitored reactions by TLC, IR, 1H NMR, 13C NMR, HPLC. Purification by flash chromatography, crystallization, distillation, separation of diastereomers by HPLC and enantiomers by both chiral-GC and chiral-HPLC. Analysis of final compounds 1H NMR, 13C NMR, 2D NMR and MS. Proficient with enzymatic assays and jell electrophoresis.
Awards & Honors
Excellence in Organic Chemistry by the American Polymer Society - 1996
Heroes in Chemistry Award by the American Chemical Society - 2019
for contributions to the new antibacterial drug: NUZYRA
Paul Abato and Todd Bowser- 7-Disubstituted-Ph tetracycline compounds for the Treatment of SMA
From PCT Int. Appl (2013) WO 2013-US43363, Patent No.WO 2013181391, Priority Appl. No. US 2012-61653262.
“PTK-SMA2, A novel splice-correcting tetracycline derivative, increases SMN protein expression and significantly improves survival in Type I SMA mice.” Paul Abato, Francine Jodelka, Paul Higgins, Jie-Zhang Hoover, Kevin Klausner, Caroline Dudley, Juan Du, Sujatha Kumar, Michelle Hastings and Todd Bowser. Poster presented at the 2012 Annual Families of Spinal Muscular Atrophy meeting in Bloomington, MN, June 21-23rd 2012.
Abato, Paul; Bowser, Todd; Higgins, Paul; Verma, Atul; Zhang-Hoover, Jie. Tetracycline Compounds for the Treatment of Rheumatoid Arthritis and Related Methods of Treatment.
From PCT Int. Appl. (2010), WO 2010033939 A1 20100325.
Hastings ML, Berniac J, Liu YH, Abato P, Jodelka FM, Barthel L, Kumar S, Dudley C, Nelson M, Larson K, Edmonds J, Bowser T, Draper M, Higgins P, Krainer AR. Tetracyclines that promote SMN2 exon 7 splicing as therapeutics for spinal muscular atrophy. Sci Transl Med. (2009) Nov 4;1(5)
Abato, Paul; Assefa, Haregewein; Berniac, Joel; Bhatia, Beena; Bowser, Todd; Grier, Mark; Honeyman, Laura; Ismail, Mohamed; Kim, Oak K.; Nelson, Mark; Pan, Jingwen; Verma, Atul. Substituted tetracycline compounds for treatment of bacterial infections and neoplasms. PCT Int. Appl. (2008), 224 pp. CODEN: PIXXD2 WO 2008079339 A2 20080703 CAN 149:128685 CAPLUS
Abato, Paul; Assefa, Haregewein; Berniac, Joel; Bowser, Todd; Chen, Jackson; Grier, Mark; Honeyman, Laura Preparation of 10-substituted tetracycline compounds as antibiotics. PCT Int. Appl. (2007), WO 2007014154 A2 20070201.
Abato, Paul; Assefa, Haregewein; Berniac, Joel; Bhatia, Beena; Bowser, Todd; Chen, Jackson; Grier, Mark; Honeyman, Laura; Ismail, Mohamed Y.; Nelson, Mark; Kwasi, Ohemeng; Pan, Jingwen. Preparation of substituted tetracycline compounds for the treatment of bacterial infections and neoplasms. PCT Int. Appl. (2006), 126 pp. CODEN: PIXXD2 WO 2006047756 A2 20060504 CAN 144:450548 AN 2006:410014 CAPLUS
Nelson, Mark L.; Honeyman, Laura; Ismail, Mohamed; Bhatia, Beena; Verma, Atul K.; Warchol, Tadeusz; Bowser, Todd; Berniac, Joel; Mechiche, Rachid; Abato, Paul; Assefa, Haregewein. Synthesis of diverse tetracycline derivatives via Pd-catalyzed reactions: Creation of a large collection of novel 3rd generation tetracyclines. Abstracts of Papers, 231st ACS National Meeting, Atlanta, GA, United States, March 26-30, 2006 (2006), ORGN-454. CODEN: 69HYEC AN 2006:249168 CAPLUS
Nelson, Mark L.; Ohemeng, Kwasi; Amoo, Victor; Kim, Oak; Abato, Paul; Assefa, Haregewein; Berniac, Joel; Bhatia, Beena; Bowser, Todd; Chen, Jackson; Grier, Mark; Hohos, Aaron; Honeyman, Laura; Ismail, Mohamed Y.; Mechiche, Rachid; Nihlawi, Mohammed; Sizensky, Emmanuelle. Preparation of substituted tetracycline analogs for use in antibiotic pharmaceutical compositions. PCT Int. Appl. (2005), 81 pp. CODEN: PIXXD2 WO 2005009943 A2 20050203 CAN 142:197754 AN 2005:99455 CAPLUS
Nelson, Mark L.; Ohemeng, Kwasi; Frechette, Roger; Abato, Paul; Assefa, Haregewein; Bandarage, Upul; Berniac, Joel; Bhatia, Beena; Chen, Jackson; Ismail, Mohamed Y.; Kim, Oak A.; Mathews, Jude; McIntyre, Laura; Nihlawi, Mohammed; Pearson, Andre; Reddy, Laxma; Sheahan, Paul; Sizensky, Emmanuelle; Tourigny, Justin; Verma, Atul K.; Viski, Peter; Warchol, Tadeusz. Preparation of substituted tetracycline compounds for the treatment of bacterial infections and neoplasms. PCT Int. Appl. (2003), 118 pp. CODEN: PIXXD2 WO 2003079984 A2 20031002 CAN 139:292094 AN 2003:777531 CAPLUS
Paul Abato, Courtney M. Yuen, Jeanne Y. Cubanski, and Christopher T. Seto Inhibitors of Plasmin that Extend into Both the S and S' Binding Sites: Cooperative Interactions Between S1 and S2. JOC. 2002, 67(4), 1184-1191.
Paul Abato and Christopher T. EMDee: An Enzymatic Method for Determining Enantiomeric Excess. Seto. J. Am. Chem. Soc. 2001, 123, 9206-9207.
Paul Abato, Jeffrey L. Conroy, and Christopher T. Seto. Combinatorial Library of Serine and Cysteine Protease Inhibitors that Interact with Both the S and S' Binding Sites. J. Med. Chem. 1999, 42, 4001-4009.
Jeffrey L. Conroy, Paul Abato, Mousumi Ghosh, Mariana I. Austermuhle, Michel R. Kiefer, and Christopher T. Seto. Synthesis of Cyclohexanone-Based Cathepsin B Inhibitors that Interact with Both the S and S' Binding Sites., Tetrahedron Lett. 1998, 39, 8253-8255.
Brown University Providence RI, 6/01/96 – 2/12/02
Ph. D., Chemistry February 2002, Advisor: Prof. Christopher T. Seto
Thesis Title: The Development of A New Class of Protease Inhibitors and EMDee: A New High - Throughput Enzymatic Method For The Determination of Enantiomeric Excess
Rhode Island College, Providence, RI B.A, 9/01/92 - 5/01/96
Chemistry with a minor in Biology; Awarded Excellence in Organic Chemistry by the American Polymer Society.