Summary Prospectus for New Investors by Investment Company (Form 497VPI)

Supplement dated October 9, 2025, to the Statutory Prospectus and Initial Summary Prospectus dated May 1, 2025 for the following Pacific Odyssey Advantage variable annuity policies issued by Pacific Life & Annuity Company

The purpose of this supplement is to announce certain underlying fund changes and premium guideline updates. This supplement must be preceded or accompanied by the Initial Summary Prospectus or Statutory Prospectus, as applicable, (collectively, the "Prospectus") for your Contract, as supplemented. All information in the Prospectus dated May 1, 2025, remains in effect unless otherwise supplemented. Capitalized terms used in this supplement are defined in your Prospectus unless otherwise defined herein. "We'', "us'', or "our" refer to Pacific Life & Annuity Company, as applicable; "you" or "your" refer to the Contract Owner. You can obtain a copy of the current Prospectus by contacting us at (800) 748-6907, or online at http://www.PacificLife.com/Prospectuses. Please retain this supplement for future reference.

The changes outlined below will become effective November 3, 2025.

The Maximum Total Purchase Payments row from the table in the Initial Summary Prospectus, under the heading BUYING THE CONTRACT, will be deleted and replaced with the row below.

The following sentences from the Statutory Prospectus will be deleted and replaced in the section BUYING YOUR CONTRACT - Making Your Investments ("Purchase Payments").

We reserve the right to reject additional Purchase Payments. Your Contract requires that you must obtain our consent before making an initial or additional Purchase Payment that will bring your aggregate Purchase Payments over $1,000,000. Currently, our administrative practice allows for aggregate Purchase Payments up to $2,000,000. We reserve the right to change this administrative practice in the future. For purposes of this limit, the aggregate purchase payments are based on all contracts for which you are either owner and/or annuitant.

All other references in the prospectus to an initial or additional purchase payment that will bring your aggregate Purchase Payments over $1,000,000 will change to the above disclosure.

Effective November 3, 2025, the APPENDIX: FUNDS AVAILABLE UNDER THE CONTRACT is amended to add the following fund:

¹ To help limit Fund expenses, Fund advisers have contractually agreed to reduce investment advisory fees or otherwise reimburse certain of their Funds which reflect temporary fee reductions. There can be no assurance that Fund expense waivers or reimbursements will be extended beyond their current terms as outlined in each Fund prospectus, and they may not cover certain expenses such as extraordinary expenses. See each Fund prospectus for complete information regarding these arrangements.

Effective November 3, 2025, the APPENDIX: FUNDS AVAILABLE UNDER THE CONTRACT is amended to reflect the following changes:

All other references in the prospectus to the names Macquarie VIP Asset Strategy Series and Macquarie VIP Energy Series will change to Nomura VIP Asset Strategy Series and Nomura VIP Energy Series, respectively.

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