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Mazdutide injection is an innovative dual-target peptide drug formulation that employs advanced sustained-release technology to deliver Mazdutide peptide via a pre-filled syringe, enabling a convenient dosing regimen of once weekly or every two weeks. This injection formulation employs a unique temperature-sensitive formulation system that maintains liquid stability at 2-8°C. After injection, it forms a gel at body temperature to achieve sustained drug release. Additionally, it uses ultra-thin 29G needles and a humanized pre-filled syringe device, significantly enhancing patient convenience and comfort. The PLGA microsphere carrier technology in the formulation precisely controls the degradation rate of the polymer, ensuring sustained drug release in the body for 2–4 weeks and maintaining stable therapeutic concentrations. The specially added nano-silica-based materials and trehalose stabilizers effectively address the challenge of peptide drug degradation, enabling the product to maintain a shelf life of over 24 months in accelerated stability testing. The dual-frequency dosing options (weekly or every two weeks) for Mazdutide injection not only meet the diverse treatment needs of patients but also reflect its differentiated market competition strategy. Combined with the currently under-development smart injection recording system, this represents a comprehensive advancement in efficacy, convenience, and intelligence for modern biopharmaceuticals, offering metabolic disease patients an optimized treatment option.
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Mazdutide Powder COA
Mazdutide injection, as an innovative dual-receptor agonist drug, is produced through a process that integrates advanced biotechnology, chemical synthesis techniques, and strict quality control systems. The following will provide a detailed introduction to the manufacturing information of Mazdutide injection from four aspects: molecular design, chemical synthesis, formulation process, and quality control.
Molecular Design: Optimization and Innovation Based on Natural Hormones
The molecular design of Mazdutide was inspired by Oxyntomodulin (OXM), a natural gastrointestinal hormone secreted by intestinal L cells in mammals. This hormone has the dual property of simultaneously activating the glucagon-like peptide-1 receptor (GLP-1R) and the glucagon receptor (GCGR). However, the half-life of natural OXM is short, requiring frequent administration, which limits its potential for clinical application.
To overcome this limitation, scientists optimized the molecular structure of OXM. By introducing fatty acyl side chains and forming long-lasting synthetic peptides, the drug's half-life was significantly extended, enabling a once-weekly administration frequency. This modification strategy not only enhanced patient compliance but also retained the dual agonistic effect of OXM. The molecular design of Mazdutide also incorporated precise regulation of the receptor activation ratio, by balancing the activation intensities of GLP-1R and GCGR, avoiding potential side effects (such as elevated blood sugar caused by excessive activation of GCGR) that may result from over-stimulation of a single receptor. Thus, it demonstrated multi-dimensional metabolic benefits while achieving weight loss and blood sugar reduction.
Chemical Synthesis: Precise Control of Multi-Step Reactions
The chemical synthesis of Mazdutide is a complex and precise process that involves multiple steps of reactions and purification. The key steps include:
Amino acid sequence synthesis
Mazdutide is a peptide drug, and its synthesis begins with the stepwise connection of amino acid sequences. Using solid-phase synthesis technology, amino acids are sequentially connected to the resin carrier in the predetermined order to form a linear polypeptide chain. This process requires strict control of reaction conditions, such as temperature, pH value, and reaction time, to ensure the correct connection of amino acids and the purity of the product.
Side chain modification and cyclization
After the linear polypeptide chain is synthesized, it needs to undergo side chain modification and cyclization reactions to introduce fatty acyl side chains and form a specific spatial structure. This step is crucial for the activity and stability of the drug, and requires precise control of reaction conditions and reagent ratios to avoid the formation of by-products.
Purification and identification
The crude product of Mazdutide after synthesis needs to undergo multiple purification steps, such as high-performance liquid chromatography (HPLC) and ion exchange chromatography, to remove impurities and unreacted raw materials. The purified product also needs to be identified through analytical techniques such as mass spectrometry and nuclear magnetic resonance to confirm that its molecular weight and structure are in accordance with expectations.
Formulation Process: Ensuring Drug Stability and Efficacy
The formulation process of Mazdutide injection aims to ensure the stability, efficacy, and safety of the drug. Its core steps include:
Solubilization and dilution of the active pharmaceutical ingredient
The purified Mazdutide active pharmaceutical ingredient is dissolved in an appropriate solvent, such as injection water or buffer solution, and then diluted to the desired concentration. This process requires strict control of the type of solvent and pH value to avoid drug degradation or precipitation.
Aseptic filtration and filling
The dissolved Mazdutide solution is filtered through an aseptic filter to remove microorganisms and particulate impurities. Then, the filtered solution is filled into pre-sterilized syringes or glass bottles, sealed, and packaged. This process needs to be carried out under aseptic conditions to ensure the sterility of the product.
Stability studies and packaging selection
To ensure the stability of the Mazdutide injection during storage and transportation, long-term stability studies need to be conducted, including accelerated tests and long-term tests, etc. Based on the research results, suitable packaging materials and storage conditions, such as avoiding light and low-temperature storage, are selected to extend the product's shelf life.
Quality Control: Full-process monitoring from raw materials to finished products
The manufacturing process of Mazdutide injection follows a strict quality control system to ensure that every step from raw materials to finished products meets the quality standards. The key points of quality control for Mazdutide injection include:
Quality control of raw materials
Conduct comprehensive quality tests on the raw material of Mazdutide, including purity, molecular weight, structural identification, residual solvents, and heavy metal content, etc. Only raw materials that meet the quality standards can be used for formulation production.
Quality control of intermediates
During chemical synthesis and formulation processes, take samples regularly from intermediates for testing to ensure their quality meets expectations. If any abnormalities are found, process parameters need to be adjusted promptly or rework procedures should be carried out.
Quality control of finished products
Conduct comprehensive quality tests on the final produced Mazdutide injection, including sterility, pH value, osmotic pressure, content uniformity, impurities, and stability, etc. Only finished products that meet quality standards can be released for sale.
Monitoring of production environment
Conduct regular environmental monitoring of the production workshop, including air cleanliness, microbial content, and particulate impurities, etc. Ensure that the production environment complies with the requirements of Good Manufacturing Practice (GMP) for pharmaceutical production.
Stability solutions for temperature-sensitive formulations
Mazdutide injection, as a dual receptor agonist drug, its active ingredient is highly sensitive to temperature fluctuations. It is prone to degradation, aggregation or structural changes under high or low temperatures, thereby affecting its efficacy and safety. To address this issue, a stability solution needs to be constructed from multiple dimensions such as formulation development, process optimization, packaging design, and storage and transportation.
Formulation Development: Molecular Modification and Ingredient Screening
Molecular Structure Optimization
The molecular design of Mazdutide has extended the half-life by introducing a fatty acid side chain, but the temperature sensitivity still needs further optimization. The thermal stability of the molecule can be improved through protein engineering techniques, such as introducing YTE mutations (M252Y/S254T/T256E), which significantly increases its melting point (Tm) and thermal stress resistance. Additionally, adjusting the proportion of hydrophobic/hydrophilic residues in the amino acid sequence can reduce non-specific interactions between molecules at high temperatures and lower the risk of aggregation.
Ingredient System Construction
Selecting appropriate excipients is crucial for enhancing stability. Sugar-based excipients such as sucrose and trehalose can stabilize protein structure and increase thermal stability by approximately 2-3°C through hydrogen bonding with water molecules. Polyols (such as mannitol) and surfactants (such as polysorbate 80) can be used in combination, with the former protecting molecules through preferential hydration and the latter reducing aggregation through spatial steric hindrance. The selection of buffers should also consider pH stability and chemical compatibility to avoid degradation caused by generalized acid-base catalysis.
Process Optimization: Temperature Control and Freeze-Drying Technology
Low-Temperature Production Process
In the preparation of Mazdutide injection, the temperature of each step such as dissolution, filtration, and filling must be strictly controlled. For example, the dissolution step is carried out at 2-8°C to avoid accelerated degradation due to high temperature; the sterilization process selects high-temperature short-time (HTST) or terminal filtration sterilization to reduce the exposure time to heat. For particularly sensitive intermediates, aseptic operation combined with freeze-drying technology can be used to completely remove moisture to inhibit hydrolysis reactions.
Freeze-Drying Process Design
Freeze-drying is the core method for solving the stability of temperature-sensitive formulations. By optimizing pre-freezing rate, sublimation temperature, and drying conditions, a loose and porous freeze-dried cake can be formed, reducing particle generation during reconstitution. For example, the pre-freezing stage uses rapid cooling to -40°C or below to avoid large ice crystals that damage the molecular structure; the sublimation stage controls the shelf temperature between -20°C and 0°C to prevent protein denaturation; the drying stage gradually raises the temperature to 25-30°C to completely remove residual moisture. Additionally, adding glycerol as a framework agent can improve the morphology of the freeze-dried cake and increase reconstitution speed.
Packaging Design: Barrier Protection and Inert Gas
High-Barrier Packaging Materials
Select packaging materials with low oxygen permeability and low moisture permeability, such as neutral borosilicate glass bottles with butyl rubber stoppers, which can effectively block the penetration of external moisture and oxygen. For pre-filled syringes, coating technology is used to reduce the contact between the drug and silicone oil and metal ions to avoid catalytic degradation.
Inert Gas Replacement Technology
During filling, introducing nitrogen or carbon dioxide into the container to replace the air can reduce the risk of oxidation. For freeze-dried powder injections after dispensing, the vacuum nitrogen filling process is used to control the oxygen concentration below 1%, significantly extending the drug's shelf life. For water-based injections, a double-chamber bag design can separate the drug from inert gas, and mixing is used during use to reduce oxidation during storage.
Storage and Transportation: Whole-Course Cold Chain Management
Temperature Monitoring and Early Warning System
Establish a whole-course cold chain monitoring system from production to the end point, using temperature sensors and Internet of Things technology to track the temperature of the drugs in real time. If the temperature deviates from the 2-8°C range, the system automatically triggers an early warning and records abnormal data, facilitating traceability and recall.
Phase Change Materials (PCM) Application
Embed phase change materials (such as paraffin, salt hydrates) in the transportation packaging to absorb or release heat through solid-liquid phase changes when the temperature fluctuates, maintaining the internal environment stable. For example, using a phase change material with a melting point of 5°C can ensure that the drug remains at a safe temperature even when temporarily out of the cold chain.
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