Safety Data Sheet (SDS)
Retatrutide
Revision 1.0 · August 30, 2026 · Formulation-level safety, handling, storage, first-aid, and transport information.
Research product
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Amino
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RT is a clearly identified research-use reference material. Verified product specification: 20mg; 20mg total; 60mg; 5mg; 10mg; 40mg; 30mg; 15mg; 50mg; 10 mg; 5 mg; 20 mg; 60 mg; 30 mg; 15 mg; 40 mg; 50 mg. A current lot-specific Certificate of Analysis is available for quality and traceability documentation. Research Use Only. Not for human use. Not for animal use.
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Safety Data Sheet (SDS)
Revision 1.0 · August 30, 2026 · Formulation-level safety, handling, storage, first-aid, and transport information.
Technical specifications
Molecular, technical, storage, and laboratory-handling information for the selected variation. Unknown or unverified fields remain blank.
Storage and handling information is for laboratory operations only. It is not dosing, administration, or medical guidance, and it does not replace a lot-specific expiration or stability document.
Peer-reviewed research
Journal studies
Retatrutide, a novel synthetic molecule, is a triple agonist activating the glucose-dependent insulinotropic polypeptide, glucagon-like peptide-1 and glucagon receptors. The TRIUMPH clinical development program evaluates its safety and efficacy concurrently for the treatment of obesity and two related complications-obstructive sleep apnea (OSA) and knee osteoarthritis (OA). A novel basket trial design simultaneously evaluates retatrutide treatment across these multiple adiposity-related disease states.
Obesity and type 2 diabetes mellitus (T2DM) are global health crises with significant morbidity and mortality. Retatrutide, a novel triple receptor agonist targeting glucagon-like peptide-1 (GLP-1), Glucose-Dependent Insulinotropic Polypeptide (GIP), and glucagon receptors, represents a groundbreaking advancement in obesity and T2DM pharmacotherapy. This review synthesizes findings from preclinical and clinical studies, highlighting retatrutide's mechanisms, efficacy, and safety profile.
To assess the effects of once-weekly subcutaneous retatrutide on weight and metabolic markers and the occurrence of side effects in patients with overweight, obesity and/or type 2 diabetes (T2D). PubMed, Embase, Cochrane Library, and ClinicalTrials.gov databases were systematically searched for placebo-controlled, randomized clinical trials (RCTs) published up until February 23, 2024. Weighted mean differences (WMDs) for continuous outcomes and risk ratios (RRs) for binary endpoints were computed, with 95 % confidence intervals (CIs).
Retatrutide (LY3437943) is an agonist of the glucose-dependent insulinotropic polypeptide, glucagon-like peptide 1, and glucagon receptors. Its dose-response relationships with respect to side effects, safety, and efficacy for the treatment of obesity are not known. We conducted a phase 2, double-blind, randomized, placebo-controlled trial involving adults who had a body-mass index (BMI, the weight in kilograms divided by the square of the height in meters) of 30 or higher or who had a BMI of 27 to less than 30 plus at least one weight-related condition.
This record is linked for reviewer verification. Open the source to confirm the study design, model, outcomes, and limitations before publication.
Retatrutide is a novel triple agonist of the glucose-dependent insulinotropic polypeptide, glucagon-like peptide 1 and glucagon receptors. A 48-week phase 2 obesity study demonstrated weight reductions of 22.8% and 24.2% with retatrutide 8 and 12 mg, respectively. The primary objective of this substudy was to assess mean relative change from baseline in liver fat (LF) at 24 weeks in participants from that study with metabolic dysfunction-associated steatotic liver disease and ≥10% of LF.
With an increasing prevalence of obesity, there is a need for new therapies to improve body weight management and metabolic health. Multireceptor agonists in development may provide approaches to fulfill this unmet medical need. LY3437943 is a novel triple agonist peptide at the glucagon receptor (GCGR), glucose-dependent insulinotropic polypeptide receptor (GIPR), and glucagon-like peptide-1 receptor (GLP-1R).
According to current consensus guidelines for type 2 diabetes management, bodyweight management is as important as attaining glycaemic targets. Retatrutide, a single peptide with agonist activity at the glucose-dependent insulinotropic polypeptide (GIP), GLP-1, and glucagon receptors, showed clinically meaningful glucose-lowering and bodyweight-lowering efficacy in a phase 1 study. We aimed to examine the efficacy and safety of retatrutide in people with type 2 diabetes across a range of doses.
NCT05445232 · COMPLETED
The main purpose of this study is to determine the effect of LY3437943 when administered subcutaneously on the levels of midazolam, warfarin and caffeine in the blood stream when administered orally as a drug cocktail in obese participants. This study will last up to approximately 25 weeks for each participant.
NCT07629401 · AVAILABLE
Provide pre-approval single-patient expanded access of retatrutide (LY3437943), an investigational GLP-1/GIP/glucagon triple receptor agonist being studied for chronic weight management, for adults with severe obesity (body mass index \[BMI\] greater than or equal to \[≥\]35 kilogram per square meter \[kg/m²\] and at least two serious or life-threatening obesity-related complications who are refractory to the best approved therapy and are unable to participate in an ongoing clinical trial of retatrutide or a comparable investigational medicine.
NCT04867785 · COMPLETED
The main purpose of this study is to evaluate the efficacy and safety of LY3437943 in participants with type 2 diabetes (T2D) who failed to achieve adequate glycemic control on diet and exercise alone or on a stable dose of metformin. This study will last about 43 weeks.
NCT06354660 · COMPLETED
The purpose of this study is to investigate the efficacy and safety of retatrutide compared with placebo in participants with Type 2 Diabetes and inadequate glycemic control. The study will last about 11 months and may include up to 11 visits.
NCT06039826 · COMPLETED
The main purpose of this study is to determine the effect of LY3437943 when administered subcutaneously on the levels of combined oral contraceptive (COC) ethinyl estradiol and drospirenone in the blood stream in postmenopausal female participants who are overweight or obese. The safety and tolerability of LY3437943 when administered with COC will also be evaluated. This study will last up to approximately 29 weeks for each participant.
NCT07232719 · ACTIVE_NOT_RECRUITING
The purpose of this study is to evaluate the efficacy and safety of retatrutide compared with placebo for body weight reduction. Participation in the study will last about 65 weeks and may include about 18 visits.
Original sources
Third-party sources are linked for independent review. A citation does not imply endorsement of this store or product.
1. pubmed · human
Kathryn Giblin, Lee M Kaplan, Virend K Somers, Carel W Le Roux, David J Hunter, Qiwei Wu, Amy Lalonde, Nadia Ahmad, Mary Angelyn Bethel · Diabetes, obesity & metabolism · 2025
Retatrutide, a novel synthetic molecule, is a triple agonist activating the glucose-dependent insulinotropic polypeptide, glucagon-like peptide-1 and glucagon receptors. The TRIUMPH clinical development program evaluates its safety and efficacy concurrently for the treatment of obesity and two related complications-obstructive sleep apnea (OSA) and knee osteoarthritis (OA). A novel basket trial design simultaneously evaluates retatrutide treatment across these multiple adiposity-related disease states. TRIUMPH consists of four Phase 3, multicenter, randomized, double-blind studies assessing weekly subcutaneous retatrutide compared to placebo, in conjunction with healthy diet and physical activity in over 5800 participants. The four trials consist of two weight management basket trials (TRIUMPH-1 and TRIUMPH-2) with OSA and/or OA protocols nested within the weight management trial; one we
Why linked: The title contains the resolved identity “Retatrutide”.
2. pubmed · human
Vasiliki Katsi, Georgios Koutsopoulos, Christos Fragoulis, Kyriakos Dimitriadis, Konstantinos Tsioufis · Biomolecules · 2025
Obesity and type 2 diabetes mellitus (T2DM) are global health crises with significant morbidity and mortality. Retatrutide, a novel triple receptor agonist targeting glucagon-like peptide-1 (GLP-1), Glucose-Dependent Insulinotropic Polypeptide (GIP), and glucagon receptors, represents a groundbreaking advancement in obesity and T2DM pharmacotherapy. This review synthesizes findings from preclinical and clinical studies, highlighting retatrutide's mechanisms, efficacy, and safety profile. Retatrutide's unique molecular structure enables potent activation of GLP-1, GIP, and glucagon receptors, leading to significant weight reduction, improved glycemic control, and favorable metabolic outcomes. Animal studies demonstrate retatrutide's ability to delay gastric emptying, reduce food intake, and promote weight loss, with superior efficacy compared to other incretin-based therapies. Phase I and
Why linked: The title contains the resolved identity “Retatrutide”.
3. pubmed · human
Eric Pasqualotto, Rafael Oliva Morgado Ferreira, Matheus Pedrotti Chavez, Alexandre Hohl, Marcelo Fernando Ronsoni, Tales Pasqualotto, Francisco Cezar Aquino de Moraes, Larissa Hespanhol, Janine Midori Figueiredo Watanabe, Carine Lütkemeyer, Simone van de Sande-Lee · Metabolism open · 2024
To assess the effects of once-weekly subcutaneous retatrutide on weight and metabolic markers and the occurrence of side effects in patients with overweight, obesity and/or type 2 diabetes (T2D). PubMed, Embase, Cochrane Library, and ClinicalTrials.gov databases were systematically searched for placebo-controlled, randomized clinical trials (RCTs) published up until February 23, 2024. Weighted mean differences (WMDs) for continuous outcomes and risk ratios (RRs) for binary endpoints were computed, with 95 % confidence intervals (CIs). A total of three studies were included, comprising 640 patients, of whom 510 were prescribed retatrutide. Compared with placebo, retatrutide significantly reduced body weight (WMD -10.66 kg; 95 % CI -17.63, -3.69), body mass index (WMD -4.53 kg/m 2 ; 95 % CI -7.51, -1.55), and waist circumference (WMD -6.61 cm; 95 % CI -13
Why linked: The title contains the resolved identity “Retatrutide”.
4. pubmed · human
Ania M Jastreboff, Lee M Kaplan, Juan P Frías, Qiwei Wu, Yu Du, Sirel Gurbuz, Tamer Coskun, Axel Haupt, Zvonko Milicevic, Mark L Hartman · The New England journal of medicine · 2023
Retatrutide (LY3437943) is an agonist of the glucose-dependent insulinotropic polypeptide, glucagon-like peptide 1, and glucagon receptors. Its dose-response relationships with respect to side effects, safety, and efficacy for the treatment of obesity are not known. We conducted a phase 2, double-blind, randomized, placebo-controlled trial involving adults who had a body-mass index (BMI, the weight in kilograms divided by the square of the height in meters) of 30 or higher or who had a BMI of 27 to less than 30 plus at least one weight-related condition. Participants were randomly assigned in a 2:1:1:1:1:2:2 ratio to receive subcutaneous retatrutide (1 mg, 4 mg [initial dose, 2 mg], 4 mg [initial dose, 4 mg], 8 mg [initial dose, 2 mg], 8 mg [initial dose, 4 mg], or 12 mg [initial dose, 2 mg]) or placebo once weekly for 48 weeks. The primary end point was the percentage change in body wei
Why linked: The title contains the resolved identity “Retatrutide”.
5. pubmed · unknown
Bastu Adebayo Olowo-Oribi, Richard James Salway · Academic emergency medicine : official journal of the Society for Academic Emergency Medicine · 2025
Why linked: The title contains the resolved identity “Retatrutide”.
6. pubmed · human
Arun J Sanyal, Lee M Kaplan, Juan P Frias, Bram Brouwers, Qiwei Wu, Melissa K Thomas, Charles Harris, Nanette C Schloot, Yu Du, Kieren J Mather, Axel Haupt, Mark L Hartman · Nature medicine · 2024
Retatrutide is a novel triple agonist of the glucose-dependent insulinotropic polypeptide, glucagon-like peptide 1 and glucagon receptors. A 48-week phase 2 obesity study demonstrated weight reductions of 22.8% and 24.2% with retatrutide 8 and 12 mg, respectively. The primary objective of this substudy was to assess mean relative change from baseline in liver fat (LF) at 24 weeks in participants from that study with metabolic dysfunction-associated steatotic liver disease and ≥10% of LF. Here, in this randomized, double-blind, placebo-controlled trial, participants (n = 98) were randomly assigned to 48 weeks of once-weekly subcutaneous retatrutide (1, 4, 8 or 12 mg dose) or placebo. The mean relative change from baseline in LF at 24 weeks was -42.9% (1 mg), -57.0% (4 mg), -81.4% (8 mg), -82.4% (12 mg) and
Why linked: The title contains the resolved identity “Retatrutide”.
7. pubmed · human
Tamer Coskun, Shweta Urva, William C Roell, Hongchang Qu, Corina Loghin, Julie S Moyers, Libbey S O'Farrell, Daniel A Briere, Kyle W Sloop, Melissa K Thomas, Valentina Pirro, David B Wainscott, Francis S Willard, Matthew Abernathy, LaRonda Morford, Yu Du, Charles Benson, Ruth E Gimeno, Axel Haupt, Zvonko Milicevic · Cell metabolism · 2022
With an increasing prevalence of obesity, there is a need for new therapies to improve body weight management and metabolic health. Multireceptor agonists in development may provide approaches to fulfill this unmet medical need. LY3437943 is a novel triple agonist peptide at the glucagon receptor (GCGR), glucose-dependent insulinotropic polypeptide receptor (GIPR), and glucagon-like peptide-1 receptor (GLP-1R). In vitro, LY3437943 shows balanced GCGR and GLP-1R activity but more GIPR activity. In obese mice, administration of LY3437943 decreased body weight and improved glycemic control. Body weight loss was augmented by the addition of GCGR-mediated increases in energy expenditure to GIPR- and GLP-1R-driven calorie intake reduction. In a phase 1 single ascending dose study, LY3437943 showed a safety and tolerability profile similar to other incretins. Its pharmacokinetic profile su
Why linked: The title contains the resolved identity “LY3437943”.
8. pubmed · human
Julio Rosenstock, Juan Frias, Ania M Jastreboff, Yu Du, Jitong Lou, Sirel Gurbuz, Melissa K Thomas, Mark L Hartman, Axel Haupt, Zvonko Milicevic, Tamer Coskun · Lancet (London, England) · 2023
According to current consensus guidelines for type 2 diabetes management, bodyweight management is as important as attaining glycaemic targets. Retatrutide, a single peptide with agonist activity at the glucose-dependent insulinotropic polypeptide (GIP), GLP-1, and glucagon receptors, showed clinically meaningful glucose-lowering and bodyweight-lowering efficacy in a phase 1 study. We aimed to examine the efficacy and safety of retatrutide in people with type 2 diabetes across a range of doses. In this randomised, double-blind, double-dummy, placebo-controlled and active comparator-controlled, parallel-group, phase 2 trial, participants were recruited from 42 research and health-care centres in the USA. Adults aged 18-75 years with type 2 diabetes, glycated haemoglobin (HbA 1c ) of 7·0-10·5% (53·0-91·3 mmol/mol), and BMI of 25-50 kg/m 2 were eligible for enrolment. El
Why linked: The title contains the resolved identity “Retatrutide”.
9. pubmed · human
Toufik Abdul-Rahman, Poulami Roy, Fatma Kamal Ahmed, Jann Ludwig Mueller-Gomez, Sarmistha Sarkar, Neil Garg, Victor Oluwafemi Femi-Lawal, Andrew Awuah Wireko, Hala Ibrahim Thaalibi, Muhammad Usman Hashmi, Andrew Sefenu Dzebu, Sewar Basheer Banimusa, Aayushi Sood · European journal of pharmacology · 2024
The increasing prevalence of obesity and type 2 diabetes mellitus has resulted in a significant challenge to public health throughout the globe. It required the development of novel therapeutic approaches. Retatrutide is a groundbreaking triple agonist that targets glucagon receptors, gastric inhibitory polypeptide, and glucagon-like peptide-1. Retatrutide's complex mechanism of action involves a synergistic interaction among these receptors, resulting in increased insulin secretion, improved glucose homeostasis, and refined appetite modulation. Clinical trials in phases 1 to 3 have demonstrated significant efficacy, highlighted by significant reductions in body weight and favorable glycemic control outcomes. Additionally, retatrutide shows promise in mitigating cardiovascular risk factors and addressing metabolic dysfunction-associated steatotic liver disease. However, careful attention
Why linked: The title contains the resolved identity “Retatrutide”.
10. pubmed · human
Harpreet S Bajaj, Michelle Welch, Parag Shah, Eduardo Luna, Fatima-Zahra Jaouimaa, Bing Liu, Rong Liu, Yanyun Chen, Hiren Patel, Amy Bartee · Lancet (London, England) · 2026
Retatrutide is a GIP, GLP-1, and glucagon triple hormone receptor agonist, under clinical development for type 2 diabetes, obesity, and related complications. We aimed to assess the efficacy and safety of retatrutide as a monotherapy in people with type 2 diabetes that is inadequately controlled by diet and exercise alone. In this 40-week, phase 3, randomised, double-blind, placebo-controlled trial at 48 sites in the USA, Mexico, and India, we recruited adults (aged ≥18 years) with type 2 diabetes that is inadequately controlled by diet and exercise alone, glycated haemoglobin (HbA 1c ) between 7·0% and 9·5% (53-80 mmol/mol), and BMI of at least 23 kg/m 2 . Participants were randomly assigned (1:1:1:1) to receive retatrutide (4 mg, 9 mg, or 12 mg) or placebo by once-weekly subcutaneous injection. The primary endpoint was the change in HbA 1c concentration from baseline t
Why linked: The title contains the resolved identity “Retatrutide”.
11. preprint · animal
Jérôme Jaouad Yousfi · 2026
Retatrutide (LY3437943) is a single-peptide agonist of glucose-dependent insulinotropic polypeptide, glucagon-like peptide-1, and glucagon receptors with substantial metabolic efficacy but an incompletely characterised psychological phenotype. This paper evaluates its plausible effects on executive control, information processing, food-directed cognitive interference, motivational salience, fatigue, and psychophysiological vigor. A structured evidence synthesis covered literature from 2010 through 10 August 2026 and separated direct retatrutide findings from receptor-level and broader cognitive-neuroscience evidence. Human studies demonstrate changes in appetite, perceived hunger, disinhibition, dietary restraint, weight-related experience, and treatment-emergent fatigue, but do not directly demonstrate improved working memory, sustained attention, processing speed, or executive function
Why linked: The title contains the resolved identity “Retatrutide”.
12. crossref · human
Shruti Singh, Rajesh Kumar, Vikas Maharshi, Nishi Sinha, Shuvasree Payra · Indian Journal of Physiology and Pharmacology · 2026
Objectives: Obesity and type 2 diabetes are closely linked, both requiring treatments that effectively address hyperglycaemia and induce weight loss. Retatrutide (LY3437943), a novel triple agonist targeting glucose-dependent insulinotropic polypeptide, glucagon-like peptide-1 and glucagon receptors, has shown promise in early trials for managing these conditions. However, evidence from different studies is inconsistent due to variability in dosing, participant characteristics and outcomes. Materials and Methods: A systematic literature search was conducted using PubMed, Google Scholar and Science Direct, including studies published up to 30 September 2024. Clinical trials reporting outcomes related to weight reduction, glycaemic control and metabolic parameters in patients treated with retatrutide were included. Results: Retatrutide demonstrated dose-dependent reductions in body weight,
Why linked: The title contains the resolved identity “Retatrutide”.
NCT05445232 · COMPLETED
Eli Lilly and Company · INTERVENTIONAL · PHASE1
The main purpose of this study is to determine the effect of LY3437943 when administered subcutaneously on the levels of midazolam, warfarin and caffeine in the blood stream when administered orally as a drug cocktail in obese participants. This study will last up to approximately 25 weeks for each participant.
NCT07629401 · AVAILABLE
Eli Lilly and Company · EXPANDED_ACCESS
Provide pre-approval single-patient expanded access of retatrutide (LY3437943), an investigational GLP-1/GIP/glucagon triple receptor agonist being studied for chronic weight management, for adults with severe obesity (body mass index \[BMI\] greater than or equal to \[≥\]35 kilogram per square meter \[kg/m²\] and at least two serious or life-threatening obesity-related complications who are refractory to the best approved therapy and are unable to participate in an ongoing clinical trial of retatrutide or a comparable investigational medicine.
NCT04867785 · COMPLETED
Eli Lilly and Company · INTERVENTIONAL · PHASE2
The main purpose of this study is to evaluate the efficacy and safety of LY3437943 in participants with type 2 diabetes (T2D) who failed to achieve adequate glycemic control on diet and exercise alone or on a stable dose of metformin. This study will last about 43 weeks.
NCT06354660 · COMPLETED
Eli Lilly and Company · INTERVENTIONAL · PHASE3
The purpose of this study is to investigate the efficacy and safety of retatrutide compared with placebo in participants with Type 2 Diabetes and inadequate glycemic control. The study will last about 11 months and may include up to 11 visits.
NCT06039826 · COMPLETED
Eli Lilly and Company · INTERVENTIONAL · PHASE1
The main purpose of this study is to determine the effect of LY3437943 when administered subcutaneously on the levels of combined oral contraceptive (COC) ethinyl estradiol and drospirenone in the blood stream in postmenopausal female participants who are overweight or obese. The safety and tolerability of LY3437943 when administered with COC will also be evaluated. This study will last up to approximately 29 weeks for each participant.
NCT07232719 · ACTIVE_NOT_RECRUITING
Eli Lilly and Company · INTERVENTIONAL · PHASE3
The purpose of this study is to evaluate the efficacy and safety of retatrutide compared with placebo for body weight reduction. Participation in the study will last about 65 weeks and may include about 18 visits.
NCT05611957 · COMPLETED
Eli Lilly and Company · INTERVENTIONAL · PHASE1
The main purpose of this study is to assess the amount of study drug that reaches the bloodstream and the time it takes for the body to get rid of it when given to participants with renal (kidney) impairment compared to healthy participants. The study will last up to 5 weeks, excluding screening.
NCT06383390 · ACTIVE_NOT_RECRUITING
Eli Lilly and Company · INTERVENTIONAL · PHASE3
The main purpose of this study is to determine if retatrutide can significantly lower the incidence of serious heart-related complications or prevent the worsening of kidney function. The trial will enroll adults with body mass index 27 kg/m\^2 or higher and Atherosclerotic Cardiovascular Disease and/or chronic kidney disease. The study will last for about 5 years. Participants will have up to 27 clinic visits with the study doctor.
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