CONTENTS
- 1. Drug Approval | Concept and Importance

- - Approval and Notification
- - Principle of Regulation on a Per-Item Basis
- - Connection Between the Development Stage and Approval
- 2. Drug Approval | Subjects of Notification and Approval

- - Scope of Drugs Subject to Notification
- - Types of Drugs Subject to Approval
- - Importance of Whether the Regional Office Has Jurisdiction
- 3. Drug Approval | Application Method and Manual

- - Use of the Prior Review System
- - Flow of the Application Procedure
- - Importance of the Common Technical Document (CTD)
- 4. Drug Approval | Modification Approval and Modification Notification

- - Criteria Distinguishing Modification Approval from Notification
- - Main Matters Subject to Modification Approval
- - Matters Subject to Modification Notification and Annual Reporting
- - Points to Note Regarding Succession of Status and Changes to a Manufacturing Business
- - Practical Checkpoints
- 5. Drug Approval | Checklist

- - Review Required from the Development Stage
1. Drug Approval | Concept and Importance

Drug approval refers to the procedure of obtaining reporting and approval from the Ministry of Food and Drug Safety for each item in order to market a drug under the Pharmaceutical Affairs Act.
This is the process by which the state officially determines whether the drug in question is safe, effective, and of a certain quality for use by the public.
From the perspective of pharmaceutical and bio companies, because whether a drug is approved is directly linked to the feasibility of commercialization, the timing of launch, and the schedule for recovering investment, accurately predicting the type of approval and the scope of required data from the early development stage is important.
In particular, depending on whether the matter is subject to approval or to reporting, and whether it is subject to a review of safety and efficacy, the level of data to be submitted, the review period, and the cost structure differ significantly.
Approval and Notification
Authorization is a procedure in which the Ministry of Food and Drug Safety actively judges suitability through review, whereas notification is a procedure handled mainly through confirmation of formal requirements when certain conditions are met.
However, the fact that something is a notification does not mean that responsibility is reduced, and a false or deficient notification is equally subject to administrative disposition.
Principle of Regulation on a Per-Item Basis
Approval and reporting are conducted on an item-by-item basis.
Even with the same ingredient, a separate approval or report may be required depending on the dosage form, dosage and administration, efficacy and effect, and excipient composition.
For this reason, a review of the approval strategy is necessary when making development changes or expanding a lineup.
Connection Between the Development Stage and Approval
Clinical trials, nonclinical data, the active pharmaceutical ingredient (DMF), the manufacturing method, and quality data are reviewed collectively at the approval stage.
If the approval requirements are not considered at the early development stage, this may lead to a delay in approval or a return of the application even after the clinical trials are completed.
2. Drug Approval | Subjects of Notification and Approval
Pharmaceutical approval and notification do not apply identically to all pharmaceuticals, and are divided into matters subject to approval and matters subject to notification according to statutes and public notices.
This distinction is the starting point for establishing a strategy.
Scope of Drugs Subject to Notification
The subjects of notification are a group of pharmaceuticals whose safety and efficacy have already been relatively well established.
Representative examples include the following cases.
∙ Pharmaceuticals conforming to the standard manufacturing criteria
∙ Pharmaceuticals identical in ingredients, specifications, dosage form, efficacy and effect, and dosage and administration to an item already approved or notified
∙ Pharmaceuticals separately announced as subjects of notification by the Commissioner of the Ministry of Food and Drug Safety
However, even if similar to an existing item, a pharmaceutical may be excluded from the subjects of notification where it uses an additive with no record of domestic use or where the particularity of its dosage form is recognized.
Types of Drugs Subject to Approval
The subjects of approval are medicines requiring a substantive review of safety and efficacy.
∙ Medicines subject to safety and efficacy review
∙ Biological products, recombinant DNA products, cell and gene therapy products
∙ Radiopharmaceuticals, medicines with a risk of misuse and abuse, narcotics
∙ Cases of applying for approval based on the data of a medicine listed in the patent registry
In such cases, the submission of advanced data is required, including clinical data, comparative data, and impurity and genotoxicity assessments.
Importance of Whether the Regional Office Has Jurisdiction
Some matters subject to approval are handled by a regional office of the Ministry of Food and Drug Safety, while some are reviewed by the Ministry's headquarters.
Because the review procedure and response strategy may differ depending on jurisdiction, advance assessment is necessary.
3. Drug Approval | Application Method and Manual

In the pharmaceutical approval application process, a stage-by-stage strategy is required, from preliminary review through responding to the examination.
Use of the Prior Review System
Where changes to efficacy and effect, dosage and administration, or formulation are anticipated during the drug development process, it is important to confirm the position of the Ministry of Food and Drug Safety in advance through a preliminary review.
This is a key means of reducing the risk of approval rejection.
Flow of the Application Procedure
Pharmaceutical approval proceeds through the following steps.
② Review of formal requirements and fees
③ Review of safety and efficacy
④ Review of standards and test methods
⑤ On-site inspection of the manufacturing site and GMP
⑥ Review of patents and the risk management plan
⑦ Approval or acceptance of the notification
A request for supplementation may arise at each stage, and a delay in response can delay the entire schedule.
Importance of the Common Technical Document (CTD)
Drugs subject to approval must submit the data in the CTD (Common Technical Document) format, and the logical structure and the consistency among the data have a significant effect on the review result.
Simply translating overseas approval data can be a cause of delay in the review.
4. Drug Approval | Modification Approval and Modification Notification
Even where one seeks to change matters for which pharmaceutical authorization has been obtained, the procedure for change authorization or change notification must be followed in accordance with the statutes.
This is a system through which the State continuously manages changes that may affect the safety, efficacy, and quality of pharmaceuticals.
Under the Pharmaceutical Affairs Act, after authorization or notification of an item for manufacture, sale, or import of a pharmaceutical has been obtained, where one seeks to change the authorized or notified matters for a given item, change authorization or change notification must be made in accordance with the "Rules on the Safety of Drugs, etc."
Manufacturing or selling differently from the authorized matters without going through the change procedure may be subject to administrative disposition or criminal punishment, so particular care is needed.
Criteria Distinguishing Modification Approval from Notification
A change approval and a change notification are distinguished according to whether the change affects safety, efficacy, or quality.
A change that has a material effect on safety, efficacy, or quality is subject to change approval, and a relatively minor matter is handled by change notification.
However, even for a matter subject to change notification, if the requirements are misjudged, it may be found that a matter subject to change approval was handled by notification alone, which can become a problem, so prior review before the change is important.
Main Matters Subject to Modification Approval
The following changes are, in principle, subject to change approval.
▷ Substantial changes to the manufacturing method
▷ Changes to the standards and test methods
▷ Matters affecting quality, such as changes to the material of the immediate container or packaging
▷ The addition of a new excipient or a change to an existing excipient
▷ Changes based on safety and efficacy data
In particular, a change to efficacy and effect or to the manufacturing method requires the submission of additional data and may, in some cases, lead to a reassessment of safety and efficacy.
Matters Subject to Modification Notification and Annual Reporting
A minor change that does not affect quality may be subject to change notification or annual reporting.
For example, certain container or packaging changes that do not affect stability and minor corrections of stated information may be subject to annual reporting.
However, where a change affects quality, such as a change to the primary container, even if it appears minor in form, it is subject to change approval, so a specific review is necessary.
Points to Note Regarding Succession of Status and Changes to a Manufacturing Business
Even where the status of a manufacturer or importer changes through transfer, acquisition, merger, inheritance, or the like, a change in license or a report of change must be made for each item.
In this case, the change procedure is carried out on the condition of succeeding to the existing license and reported matters, and the documents to be submitted and the competent authority may differ depending on whether the business name, location, or representative changes.
Practical Checkpoints
A change in approval or a change report is easily mistaken for being simpler than the initial approval, but in practice review delays frequently occur due to errors in judging the scope of the change, omission of materials, mistakes regarding the competent authority, and the like.
Accordingly, systematic management is necessary.
∙ Confirming whether it falls under the jurisdiction of the regional office
∙ Clearly preparing a comparison table of before and after the change
∙ Ensuring the sufficiency of the materials on the reason for the change and the impact assessment
∙ Reviewing the handling of inventory of the product before the change and whether it can be marketed
5. Drug Approval | Checklist

In the process of drug approval and reporting, seemingly minor elements often become grounds for delay or rejection.
Category | Checklist |
Check on determination of approval/reporting target | Whether it meets the requirements for a reporting target |
Whether it falls outside the drugs subject to approval restrictions | |
Whether jurisdiction lies with the regional office | |
Review of product components | Legality of the active pharmaceutical ingredient and excipients |
Whether it is subject to a DMF and the need for linked review | |
Whether evaluation data on impurities, metals, and genotoxicity have been submitted | |
Appropriateness of the stated matters | Whether the product name is misleading or exaggerated |
Securing the basis for efficacy and effect, and dosage and administration | |
Accuracy of the statement of the manufacturing method and manufacturer | |
Post-management elements | Whether it is subject to reexamination |
Approval conditions and the period of validity | |
Review of the need for change approval or change reporting |
Review Required from the Development Stage
If the distinction between approval and notification, the question of whether a matter is subject to safety and efficacy review, and the assessment of the scope of materials to be submitted go wrong from the outset, this can lead to approval delays, repeated supplementation, and changes to the business schedule even after clinical trials are completed.
In particular, because pharmaceutical and bio companies must consider the following factors together, this can be regarded as an area that requires specialized interpretation of law and regulation.
▷ The usability of clinical and non-clinical materials for approval
▷ Mid- to long-term risks that may lead to a change in approval or a change notification
Daeryun includes among its members medical attorneys with experience working at pharmaceutical companies and pharmacist qualifications, as well as professionals with expertise in the regulatory and administrative fields.
From the design of the approval type at the early development stage to clinical strategy, the assessment of product approval and notification, change approval, and post-management, it provides practical assistance linked to the business schedules of pharmaceutical and bio companies.
▷ Review of the scope of materials and strategy depending on whether a matter is subject to safety and efficacy review
▷ Verification of CTD composition and the legal and administrative consistency of approval materials
▷ Establishment of a proactive management strategy regarding the possibility of a change approval or change notification
▷ Advice on response measures where an approval delay, rejection, or supplementation request arises
If you are in a situation that requires related legal advice, please feel free to request assistance from a 🔗medical attorney at any time.
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