Stability and Shelf-Life Data Requirements

1. Key takeaways

Myanmar’s requirements for stability and shelf-life data are likewise layered by class: Class A and Class B are “if applicable”, while Class C and Class D are “required”.

GRZAN note: the benchmark for judging “if applicable” is whether the product declares a shelf life. Any product that carries a shelf-life statement on its label or instructions for use must provide the supporting data. Since the overwhelming majority of medical devices declare a shelf life, Class A and Class B products can in reality rarely claim a genuine exemption. Companies should plan for submission rather than hope for the exemption. The layering can be remembered as: Class A and Class B — 2 classes “if applicable”; Class C and Class D — 2 classes “required”; 4 risk classes in total.

• Class A — if applicable;
• Class B — if applicable;
• Class C — required;
• Class D — required;
• Trigger in practice — any product declaring a shelf life must provide supporting data.

The label linkage reinforces this: the label artwork must state the production date and the shelf life, so a shelf life is essentially always declared on the finished pack. Planning on the assumption that the data will be needed — whatever the class — removes a recurring source of last-minute scrambling, and it aligns the Myanmar file with the stability work already performed for other ASEAN markets.

2. Legal basis

The class-specific requirements come from the same cross-reference table as the other technical documents: Section 2 of the Myanmar Food and Drug Administration’s Technical Guidelines for Online Submission of Medical Devices. The table below also shows the label linkage and the underlying quality system standard, ISO 13485, under which the stability records and their change control are maintained.

3. Expert insights

Insight 1: the substantive criterion behind “if applicable” is whether a shelf life is declared. This criterion binds the documentation requirement to the label content: a company cannot escape the obligation simply by not submitting the data, because a declared shelf life on the labelling summons the requirement regardless of the class. The control point is therefore the label, not the document list — and since the label artwork must in any case carry the production date and the shelf life, the escape route is closed by design.

Insight 2: for Class C and Class D products the stability data is unconditionally required. Together with the sterilization validation and the clinical evaluation, it forms one of the three mandatory documents for high-risk products. Scheduling the stability programme should therefore be among the first actions in a Class C or Class D project, since it is the slowest of the three to generate data and the one whose timing cannot be compressed without weakening its evidentiary value.

Insight 3: the stability data must be consistent with the shelf life stated on the label. Any labelling claim that goes beyond what the data supports will be challenged by reviewers. The correct workflow is to fix the claimed shelf life from the study results, not to declare an aspirational shelf life first and look for data afterwards. This applies equally at renewal time: if the claimed shelf life is extended, new supporting data must come with it.

Insight 4: stability under special transport and storage conditions may need separate argumentation. If the instructions for use specify particular storage conditions, corresponding data must support them. A product stored cold, or requiring a defined humidity range, carries the burden of proving stability under exactly the conditions it promises to users — and it is the conditions in the instructions for use, not the ones in the internal standard, that define that promise.

Insight 5: the shelf life of the product and the validity period of the registration certificate are two different concepts. The former is the product-level shelf life; the latter is the five-year licence period at the market-access level. Confusing the two in internal registers or in the dossier creates inconsistencies that reviewers notice, so the two dates should be tracked separately, each with its own renewal trigger and its own owner.

4. Practical recommendations

• Whenever the label declares a shelf life, prepare the stability data. Do not rely on the “if applicable” exemption.
• For Class C and Class D products, submit stability and sterilization validation data unconditionally. Plan against the three mandatory documents.
• Ensure the data matches the shelf life stated on the label. Do not label beyond the supported range.
• Supplement the argumentation for special storage conditions. Cover every condition stated in the instructions for use.
• Distinguish the product shelf life from the five-year registration certificate validity. Manage them separately in the internal register.

The economic logic behind these recommendations is worth making explicit: stability data is expensive to generate but cheap to reuse, so the only real choice a company makes is between starting the study early and reusing it across markets, or starting late and repeating it under deadline pressure. Choosing the first option turns the Myanmar stability file from a bottleneck into a routine annex that arrives already aligned with the label and the certificate of analysis.

5. Verification checklist

• □ Determined whether the product declares a shelf life
• □ Stability data prepared (for products declaring a shelf life)
• □ Stability data submitted for Class C and Class D products
• □ Data confirmed consistent with the shelf life stated on the label
• □ Supplementary argumentation prepared for special storage conditions
• □ Product shelf life and registration certificate validity distinguished in the register
• □ Stability file included in the registration register management

How GRZAN can help. GRZAN provides medical device and IVD registration, quality system, authorised representative and local testing support across Southeast Asia, including Myanmar. Our team prepares the technical dossier to ASEAN CSDT structure, manages submission and deficiency responses with the Myanmar FDA, and supports post-market vigilance obligations. Business enquiries: info@grzanglobal.com