PMID- 38508870 OWN - NLM STAT- MEDLINE DCOM- 20240408 LR - 20240411 IS - 1520-6904 (Electronic) IS - 0022-3263 (Print) IS - 0022-3263 (Linking) VI - 89 IP - 7 DP - 2024 Apr 5 TI - Process Mass Intensity (PMI): A Holistic Analysis of Current Peptide Manufacturing Processes Informs Sustainability in Peptide Synthesis. PG - 4261-4282 LID - 10.1021/acs.joc.3c01494 [doi] AB - Small molecule therapeutics represent the majority of the FDA-approved drugs. Yet, many attractive targets are poorly tractable by small molecules, generating a need for new therapeutic modalities. Due to their biocompatibility profile and structural versatility, peptide-based therapeutics are a possible solution. Additionally, in the past two decades, advances in peptide design, delivery, formulation, and devices have occurred, making therapeutic peptides an attractive modality. However, peptide manufacturing is often limited to solid-phase peptide synthesis (SPPS), liquid phase peptide synthesis (LPPS), and to a lesser extent hybrid SPPS/LPPS, with SPPS emerging as a predominant platform technology for peptide synthesis. SPPS involves the use of excess solvents and reagents which negatively impact the environment, thus highlighting the need for newer technologies to reduce the environmental footprint. Herein, fourteen American Chemical Society Green Chemistry Institute Pharmaceutical Roundtable (ACS GCIPR) member companies with peptide-based therapeutics in their portfolio have compiled Process Mass Intensity (PMI) metrics to help inform the sustainability efforts in peptide synthesis. This includes PMI assessment on 40 synthetic peptide processes at various development stages in pharma, classified according to the development phase. This is the most comprehensive assessment of synthetic peptide environmental metrics to date. The synthetic peptide manufacturing process was divided into stages (synthesis, purification, isolation) to determine their respective PMI. On average, solid-phase peptide synthesis (SPPS) (PMI approximately 13,000) does not compare favorably with other modalities such as small molecules (PMI median 168-308) and biopharmaceuticals (PMI approximately 8300). Thus, the high PMI for peptide synthesis warrants more environmentally friendly processes in peptide manufacturing. FAU - Kekessie, Ivy AU - Kekessie I AUID- ORCID: 0009-0000-2844-9051 AD - Early Discovery Biochemistry - Peptide Therapeutics, Genentech, Inc., A Member of the Roche Group, 1 DNA Way, South San Francisco, California 94080, United States. FAU - Wegner, Katarzyna AU - Wegner K AD - Active Pharmaceutical Ingredient Development, Ipsen Manufacturing Ireland Ltd., Blanchardstown Industrial Park, Dublin 15, Ireland. FAU - Martinez, Isamir AU - Martinez I AD - Green Chemistry Institute, American Chemical Society, 1155 16th St North West, Washington, District of Columbia, 20036, United States. FAU - Kopach, Michael E AU - Kopach ME AUID- ORCID: 0000-0002-3590-702X AD - Synthetic Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285, United States. FAU - White, Timothy D AU - White TD AD - Synthetic Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285, United States. FAU - Tom, Janine K AU - Tom JK AUID- ORCID: 0000-0002-3531-8751 AD - Drug Substance Technologies, Amgen, Inc., 1 Amgen Center Drive, Thousand Oaks, California 91320, United States. FAU - Kenworthy, Martin N AU - Kenworthy MN AD - Chemical Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield, SK10 2NA, United Kingdom. FAU - Gallou, Fabrice AU - Gallou F AUID- ORCID: 0000-0001-8996-6079 AD - Chemical & Analytical Development, Novartis Pharma AG, 4056 Basel, Switzerland. FAU - Lopez, John AU - Lopez J AUID- ORCID: 0000-0002-0551-6511 AD - Chemical & Analytical Development, Novartis Pharma AG, 4056 Basel, Switzerland. FAU - Koenig, Stefan G AU - Koenig SG AUID- ORCID: 0000-0002-1878-614X AD - Small Molecule Pharmaceutical Sciences, Genentech, Inc., A Member of the Roche Group, 1 DNA Way, South San Francisco, California 94080, United States. FAU - Payne, Philippa R AU - Payne PR AD - Outsourced Manufacturing, Pharmaceutical Development & Manufacturing, Gilead Alberta ULC, 1021 Hayter Rd NW, Edmonton, T6S 1A1, Canada. FAU - Eissler, Stefan AU - Eissler S AD - Bachem AG, Hauptstrasse 144, 4416 Bubendorf, Switzerland. FAU - Arumugam, Balasubramanian AU - Arumugam B AD - Chemical Macromolecule Division, Asymchem Life Science (Tianjin) Co., Ltd., 71 Seventh Avenue, TEDA Tianjin 300457, China. FAU - Li, Changfeng AU - Li C AD - Chemical Macromolecule Division, Asymchem Life Science (Tianjin) Co., Ltd., 71 Seventh Avenue, TEDA Tianjin 300457, China. FAU - Mukherjee, Subha AU - Mukherjee S AUID- ORCID: 0000-0002-9359-990X AD - Chemical Process Development, Bristol Myers Squibb, New Brunswick, New Jersey 08903, United States. FAU - Isidro-Llobet, Albert AU - Isidro-Llobet A AUID- ORCID: 0000-0001-9108-5916 AD - GSK, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K. FAU - Ludemann-Hombourger, Olivier AU - Ludemann-Hombourger O AD - PolyPeptide Laboratories France SAS, 7 Rue de Boulogne, 67100 Strasbourg, France. FAU - Richardson, Paul AU - Richardson P AUID- ORCID: 0000-0002-3700-8749 AD - Chemistry, Pfizer, 10578 Science Center Drive (CB6), San Diego, California 09121, United States. FAU - Kittelmann, Jorg AU - Kittelmann J AD - CMC API Development, Novo Alle, 2880 Bagsvaerd, Denmark. FAU - Sejer Pedersen, Daniel AU - Sejer Pedersen D AUID- ORCID: 0000-0003-3926-7047 AD - Chemical Development, Novo Alle, CMC API Development, 2880 Bagsvaerd, Denmark. FAU - van den Bos, Leendert J AU - van den Bos LJ AD - EnzyTag B.V, Daelderweg 9, 6361HK, Nuth, Netherlands. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20240320 PL - United States TA - J Org Chem JT - The Journal of organic chemistry JID - 2985193R RN - 0 (Peptides) RN - 0 (Solvents) SB - IM MH - *Peptides/chemistry MH - Chemistry Techniques, Synthetic MH - *Solid-Phase Synthesis Techniques MH - Solvents PMC - PMC11002941 COIS- The authors declare the following competing financial interest(s): K.W. is an employee of IPSEN and owns stock or stock options. M.N.K. is an employee of AstraZeneca and owns stock or stock options. S.M. is an employee of Bristol Myers Squibb and owns stock or stock options. J.L. and F.G. are employees of Novartis and own stock or stock options. L.J.vdB. owns stock or stock options in EnzyTag. O.L.H. is an employee of PolyPeptide Laboratories. B.A. and C.F. Li are an employee of Asymchem Life Science own stock or stock options. A.I-L. is an employee of GSK and owns stock or stock options. I.A.K. and S.G.K. are employees of Genentech, a Member of the Roche Group, and own stock or stock options. M.E.K. is an employee of Eli Lilly and Company. S.E. is an employee of Bachem and owns stock or stock options. P.R. is an employee of Pfizer Inc. and owns stock or stock options. D.S.P. is an employee of Novo Nordisk and owns stock. J.K. is an employee of Novo Nordisk and owns stock. All other authors declare no competing financial interest. EDAT- 2024/03/21 00:44 MHDA- 2024/04/08 06:42 PMCR- 2024/04/09 CRDT- 2024/03/20 22:32 PHST- 2024/04/08 06:42 [medline] PHST- 2024/03/21 00:44 [pubmed] PHST- 2024/03/20 22:32 [entrez] PHST- 2024/04/09 00:00 [pmc-release] AID - 10.1021/acs.joc.3c01494 [doi] PST - ppublish SO - J Org Chem. 2024 Apr 5;89(7):4261-4282. doi: 10.1021/acs.joc.3c01494. Epub 2024 Mar 20.