Guidance on preparing and submitting summary reports for marketed drugs and natural health products: Preparing annual summary reports under the NHPR

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About NHP annual summary report preparation requirements

Licence holders must prepare and maintain a summary report on an annual basis. This is in accordance with section 24(2) of the Natural Health Products Regulations (NHPR).

The annual summary report (ASR) contains a concise and critical analysis of all domestic adverse reactions and foreign serious unexpected adverse reactions to a natural health product (NHP) reported over the previous 12 months.

The requirement to prepare an ASR begins on the date that the product is first sold in Canada and continues throughout the product's life cycle.

Preparing NHP annual summary reports

You must meet all regulatory requirements of the NHPR. This includes annually preparing and maintaining the ASR.

Preparing the report consists of collecting, analyzing and organizing the relevant data about adverse reactions and serious adverse reactions, including contextual information, that enables you to determine whether there has been a significant change to the risk-benefit profile. The preparation of the report is an ongoing activity linked to signal management processes and monitoring activities.

Continuous and periodic signal management processes and monitoring activities, such as environmental scanning, are both important parts of routine pharmacovigilance and signal detection for the preparation of an ASR.

It's essential that licence holders and regulatory authorities have the most up-to-date information on an NHP. Your concise, critical analysis must be rigorous enough to detect any significant changes in the risk-benefit profile. The timing, frequency and nature of monitoring activities for signal detection depend on a number of factors, such as:

Identified and potential safety issues, as well as knowledge gaps (for example, toxicity in vulnerable sub-populations, interactions with other products, emergent use patterns) may require more active monitoring.

In addition to reviewing your internal databases and information, you are advised to review the Canada Vigilance Adverse Reaction online database for information relevant to the preparation of your ASR. For more information on scanning the database and your obligations concerning serious adverse reaction reporting, consult:

For information on reporting adverse reactions to Health Canada, consult:

You are encouraged to use terminology from the Medical Dictionary for Regulatory Activities (MedDRA) to analyze and present data.

You may choose the 12-month period for which the ASR is prepared as long as there are no gaps between reporting periods. We prefer that ASRs be prepared as a cumulative summary from the date of first sale in Canada. The ASR should be prepared within 70 calendar days of the end of the most recent 12-month period.

Note: There may be instances when the licence holder contracts another party to carry out certain activities on their behalf. Examples of activities are maintaining records on adverse reaction data, conducting vigilance activities or preparing and submitting ASRs. The license holder is responsible for complying with regulatory requirements for their products. Regardless of whether or not this is done on their behalf by another party, these activities should be managed, performed and documented in a way that supports accountability and continuous improvement.

Visit Definitions for an explanation of "significant change" and "vulnerable sub-populations".

Content of NHP annual summary report

The information you include in the ASR will vary depending on the adverse reaction data received or known to you. If you cannot complete a section (for example because you have not become aware of any adverse reactions within a reporting period), note this and provide an explanation.

Adverse reaction reports as well as other sources of information that might be necessary for the analysis should be considered. Other data sources may include:

You should include in your concise critical analysis information on emerging safety issues related to your product or its ingredients. Collecting this information is part of your ongoing monitoring activities for signal detection.

An ASR should add to what is known about the product's safety from real-world use. Available reference safety information (such as product and ingredient monographs, approved product labelling or terms of market authorization) should also be assessed in the ASR as part of the analysis.

Safety issues may arise even for products with well-established safety profiles. The depth of analysis needed for an ASR depends on the nature and amount of the information collected. ASRs summarize and integrate new safety knowledge gained from experience during the reporting period.

At minimum, your concise critical analysis should discuss the following, where relevant:

Canadian-specific information, where relevant, should be included in the ASR or in a Canadian-specific section or addendum, including:

Conclusions about a significant change

In preparing your ASR, you should include your conclusions on whether there has been a significant change in what is known about the risks and benefits of the NHP during the period covered by the report. As such, you should determine whether there has been a change in the balance of the benefits and risks that would warrant urgent action. These conclusions would be based on your concise critical analysis.

Not all changes to risks and benefits are considered significant. You should note changes and assess if they meet the threshold of significant change.

The conclusion of a significant change should be made from the perspective of a reasonable person with objective knowledge of credible facts, sufficient experience or training and an understanding that the benefits of a marketed product must outweigh its risks.

A significant change could indicate a need for urgent action to, for example:

Consult: Guidance to market authorization holders on issuing health product risk communications

Changes to reference safety information resulting from your signal management processes could also lead to the conclusion of a significant change.

Visit Definitions for an explanation of "significant change".

Acceptable document format for NHP summary reports

You may prepare an ASR using one of the following standardized document formats:

You may also prepare an ASR using a non-standardized format, as long as it respects the expected content outlined in this guidance.

Although the PBRER document format is preferred, the format you choose will depend on the nature of the product and your preference.

You may use two consecutive 6-month summary reports prepared for another regulatory authority to meet the regulatory requirements.

Although standardized periodic summary reports such as PBRERs and PSURs are used globally, regional differences may exist. You should consider the need for a Canadian-specific section or addendum when preparing an ASR in these formats. If using a global PBRER or PSUR prepared for a period greater than one year, the Canadian-specific information must be annualized to meet the regulatory requirements.

Notification of significant change – NHPs

You are encouraged to inform us without delay if there's a significant change in what is known about the risks and benefits of the NHP.

To avoid overburdening the system, do not submit a notification of significant change unless it meets the threshold outlined in the definition of significant change.

Issues related to the quality of the product or good manufacturing practices (GMP) are not in scope of this requirement and should not be notified in this manner.

Visit Definitions for an explanation of "significant change".

If you have questions about what constitutes a significant change, contact us for advice.

How to notify

When informing us of a significant change, the information should be clear and explicit and should contain a description of:

You are also encouraged to include in your notification the following:

Note: You are expected to proceed with any intended actions outlined in your notification in accordance with procedures outlined in the NHPR.

To notify us of a significant change, complete the form:

The form is available upon request by emailing no-reply.MHPD.publications.DPSC.non-reponse@hc-sc.gc.ca. To receive the form automatically, the subject line must be exactly "Notifying Health Canada of a significant change form". Do not modify the subject line, as this may prevent the form from being delivered automatically.

Once complete, submit the form without delay as per the instructions included.

Contact us if you have questions about your submission or how to submit.

Discontinued NHPs

After an NHP licence is discontinued or cancelled, you should continue to prepare an ASR until the expiry date of the last lot sold. You are also encouraged to inform us immediately if there's a significant change.

Some adverse reactions and associated safety signals may appear soon after use of the product starts, while others may take longer to appear. For example:

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2026-09-04