What to Look for When Choosing a Pharmaceutical Contract Manufacturing Partner A practical checklist for pharmaceutical companies, procurement teams, importers and distributors
Why This Decision Matters Two manufacturers can quote almost the same price for the same tablet. The difference may become apparent later through production timelines, batch release, documentation, or stability work. Most of that difference can be identified before you sign. You just have to ask the right questions early. Choosing a pharmaceutical contract manufacturing partner means handing over the day-today production of your product. You keep the brand and the market responsibility. The partner runs the facility, the people and the quality systems. That arrangement works well when you understand how the manufacturer operates before commercial manufacturing begins.
Who This Guide Is For Pharmaceutical companies, procurement teams, importers, distributors and healthcare brands evaluating a contract manufacturer for finished formulations.
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How to Use It The sections follow the order most buyers work through: 1. 2. 3. 4. 5.
Certifications Facility and equipment Quality systems and documentation Trial batch and agreements Buyer checklist
The buyer checklist can be printed and filled in for each manufacturer on your shortlist.
1. Certifications to Verify The certificate is the easy part. Certifications can help you determine whether a manufacturer meets the relevant requirements. The harder work is checking that the certification applies to the actual manufacturing unit, product and dosage form involved. What to Check ☐ WHO-GMP certificate for the manufacturing unit that will make your product ☐ The certificate's scope covers your dosage form, and it is still valid ☐ A valid drug manufacturing licence for your product category ☐ ISO 9001:2015 for the quality management system ☐ Any additional certificate your target market or product specifically requires, such as HALAL ☐ Whether the manufacturer can provide the regulatory documents required for your target market, where applicable Worth Knowing Many manufacturers operate more than one production unit. A certificate you see online may belong to a different unit from the one that will make your order. So ask which unit will manufacture your product, and then check that unit's certificate. A good manufacturer should be able to clearly identify the relevant manufacturing unit and provide the applicable documentation.
2. Facility and Equipment Questions A certificate confirms that a site meets applicable requirements within the scope of the certification. Facility questions tell you whether it can make your product, at your volume, when you need it. Questions to Ask 1. Which unit will make my product? 2. Does that unit already manufacture my dosage form (tablets, capsules or oral liquids)?
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3. What equipment will be used for granulation, compression, coating or capsule filling? 4. What batch sizes are possible at pilot scale and at commercial scale? 5. Is there an in-house quality control laboratory and stability-testing capability? 6. What is the usual lead time for a repeat order? 7. Can we audit the site, in person or virtually? Why Scale-Up Matters A product that works well in a small lab batch does not always behave the same way on commercial equipment. Blends can flow differently. Tablets that passed hardness testing at one scale can chip at another. Manufacturers whose formulation development and production teams work closely together can help manage these scale-up considerations. Would you rather hear about a capacity problem during evaluation, or when your launch stock is due?
3. Quality Systems and Documentation If it isn't written down, it didn't happen. Manufacturing steps, testing, and relevant changes should be documented so that batches can be traced and reviewed. Signs of a Working Quality System ☐ Separate Quality Assurance (QA) and Quality Control (QC) functions ☐ Written SOPs for manufacturing, testing and batch release ☐ Change control, with a clear way of telling you about changes that affect your product ☐ A process for investigating problems and fixing the root cause ☐ Validated manufacturing processes and validated methods for testing, where applicable ☐ Traceability from raw material supplier to finished batch ☐ Complaint handling and adverse event reporting, where applicable ☐ An ongoing stability programme One question tells you a lot: “Can you walk us through your last deviation and how it was closed?” A quality team should be able to explain the process clearly. Documents to Request Document
Why it matters
Certificate of Analysis for every batch
Confirms the batch meets the agreed specification
Product specification (BP, USP or inhouse)
Defines the quality requirements for the product
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Stability study data
Supports shelf-life assessment and product registration in your market
Process validation summary
Provides information on process validation and manufacturing consistency
Registration dossier in CTD format, May be required for product registration, depending where available on the importing market Other regulatory documents
May be required based on the product and importing country's requirements
4. The Trial Batch and What to Agree First How a Trial Batch Usually Runs 1. You share product details, including strength, dosage form, pack type and target market. 2. The manufacturer reviews feasibility, equipment and raw material sourcing. 3. A trial or pilot batch is produced under the applicable manufacturing and quality controls. 4. The batch undergoes testing according to the agreed product requirements, and a Certificate of Analysis is issued. 5. You review the results, packaging and labels. 6. After approval, commercial manufacturing is planned. Treat the trial batch as a rehearsal for the whole relationship. How quickly did the documents arrive? Did someone technical answer your questions? Those answers matter as much as the test results. Agree These in Writing Before Commercial Production Area
What to settle Quality agreement Who releases batches, and who handles deviations, complaints and recalls Confidentiality
An NDA covering your formula and technical data
Commercial terms
Price validity, minimum order quantity, payment terms, lead time and Incoterms
Packaging and labels
Artwork approval steps, label language and pack sizes
Shelf life on arrival
Minimum remaining shelf life at the time of dispatch
5. Buyer Checklist
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Print one copy for each manufacturer on your shortlist. Count the ticks out of 22 to compare them side by side. Certifications ☐ WHO-GMP certificate for the manufacturing unit ☐ Scope covers my dosage form ☐ Manufacturing licence valid ☐ ISO 9001:2015 ☐ Additional market-specific certification checked, where applicable Facility ☐ Dosage form already manufactured at this unit ☐ Equipment confirmed ☐ Pilot and commercial batch sizes confirmed ☐ In-house QC and stability-testing capability reviewed ☐ Audit possible Quality Systems ☐ QA and QC functions confirmed ☐ Deviation process explained ☐ Validated processes and methods reviewed, where applicable ☐ Raw material traceability Documentation ☐ Sample Certificate of Analysis reviewed ☐ Product specification shared ☐ Stability data available ☐ CTD dossier available or planned, where applicable Trial Batch and Agreements ☐ Trial batch plan agreed ☐ Quality agreement drafted ☐ NDA signed ☐ Commercial terms and shelf life on arrival agreed
Frequently Asked Questions What is pharmaceutical contract manufacturing? It is when a company outsources the production of its medicines to a specialized manufacturer. The manufacturer produces to the client's agreed requirements under applicable GMP standards, while the client usually handles branding, registration and sales. How do I choose a pharmaceutical contract manufacturer? Confirm the certifications for the actual manufacturing unit, and check that the unit already makes your dosage form. Then review the quality systems and documents, and run a trial
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batch before committing. Compare commercial terms after these checks have been completed. What certifications should a pharmaceutical contract manufacturer have? The certifications required depend on the product, dosage form and target market. For pharmaceutical manufacturing, buyers should verify the relevant GMP certification for the actual manufacturing site and a valid manufacturing licence. ISO 9001:2015 may also be relevant to the manufacturer's quality management system. Additional certifications, such as HALAL, may be required for certain products or markets. What documents should I request before the first order? Ask for relevant certificates, product specifications, a sample Certificate of Analysis, stability data and process validation information. Depending on the market and product, additional regulatory documentation such as a CTD dossier may also be required. Can a contract manufacturer also handle formulation development? Some can. When formulation development and commercial manufacturing are closely connected, it can make technology transfer and scale-up easier to manage.
Final Word: Choosing the Right Pharmaceutical Contract Manufacturing Partner Price matters, but a suitable pharmaceutical contract manufacturing partner should have certifications relevant to your product, appropriate manufacturing capabilities, functioning quality systems and the documentation needed for your market. Checking these areas early can help identify potential issues before commercial manufacturing begins.
About Octavius Pharma Octavius Pharma Pvt. Ltd. is a pharmaceutical manufacturer in India with WHO-GMPcertified manufacturing units and ISO 9001:2015 certification. The company provides contract manufacturing services for pharmaceutical finished formulations, including oral solid and oral liquid dosage forms. Its formulation development capabilities include pre-formulation studies, stability testing, analytical services, pilot batch manufacturing and manufacturing scale-up, supporting the transition from development to commercial manufacturing. Learn more at: https://octaviuspharma.com/services/contract-manufacturing/
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