A 55-year-old woman with a history of three episodes of major depressive disorder over the past 15 years has achieved full remission on her current antidepressant after her most recent episode. Her most recent episode was severe with suicidal ideation and required a medication change before remission was achieved. She has now been symptom-free for eight months. She asks her PMHNP when she can consider stopping her antidepressant. Which of the following best describes the evidence-based approach to relapse prevention planning for this patient?