Treatment-resistant depression and psychedelic therapy: what to know

If you have been told you have treatment-resistant depression, or you suspect the term describes your experience, you may be looking for clear information about what it means and where psychedelic-assisted therapy (PAT) fits into the conversation. This page explains the term, why a full clinical assessment matters, why your existing care should continue, what PAT involves as a process, and how to talk with a clinician about your options.

Medically reviewed by Jacque Lovely, RN, MN, MBA, PMP, Reg #74334.

If you are in crisis or thinking about suicide, call or text 988, the Suicide Crisis Helpline, any time, day or night. If you are in immediate danger, call 911 or go to your nearest emergency department.

Key points

• "Treatment-resistant depression" is a clinical term. It describes a history of care, not a prediction about the future.
• A full clinical assessment is the starting point for any decision about care, including whether PAT is appropriate for you at all.
• Keep your existing care in place. Do not stop or change any medication or treatment on your own.
• Psychedelic-assisted therapy is a structured process of assessment, preparation, a supervised medicine session and integration, delivered by a clinical team.
• ATMA CENA provides mental health care, including psychedelic-assisted therapy, and a clinician assesses whether any treatment is appropriate for each person.

If you would like to talk through your situation, you can book a free information call with ATMA CENA's clinical team.

What is treatment-resistant depression?

Treatment-resistant depression (often shortened to TRD) is a term clinicians use when major depression has not improved enough after several adequate attempts at standard care during the current episode. "Adequate" usually means each approach was tried at an appropriate level, for long enough, and consistently enough to judge whether it was helping.

There is no single universal definition, and different clinicians and guidelines use slightly different criteria. What they share is the idea that the person has made real, sustained efforts with standard care and is still living with significant symptoms. The term is descriptive. It says something about what has been tried so far. It does not mean a person is beyond help, and it is not a judgment about effort or character.

Living with depression that has not lifted despite repeated efforts can be exhausting and discouraging. Many people describe feeling worn down by trying one thing after another. That frustration is understandable, and it is worth saying clearly: reaching out again, and asking new questions about your care, is a reasonable and healthy step.

Why a full clinical assessment matters

Before any new direction in care is considered, a careful reassessment is one of the most important things a clinician can do. Sometimes depression described as "treatment-resistant" turns out to involve factors that were not fully addressed the first time, such as:

• A diagnosis that needs another look, including whether mood symptoms are part of a different condition such as bipolar disorder.
• Earlier approaches that were not given enough time, or that were hard to follow consistently because of cost, access or other barriers.
• Physical health issues that can affect mood, such as thyroid conditions, sleep disorders or chronic pain.
• Substance use, trauma history, grief or ongoing stressors at home or work that shape how a person is feeling.
• Other mental health conditions that occur alongside depression, such as anxiety or post-traumatic stress.

A thorough assessment usually covers your mental health history, physical health, current and past medications, family history, supports and safety. It is also where a clinician begins to understand what matters most to you. This step is not a hurdle to get through. It is the foundation for every decision that follows, including whether psychedelic-assisted therapy is appropriate for you or whether another path makes more sense.

Keep your existing care in place

If you already have a family doctor, psychiatrist, psychotherapist or other care team, that relationship matters. Exploring psychedelic-assisted therapy should happen alongside your existing care, not instead of it.

• Do not stop or change medication on your own. Any change to a medication should be planned with the clinician who manages it.
• Keep your providers informed. Let your current care team know you are exploring options, and share relevant records with your consent so everyone has the full picture.
• Keep your supports close. Ongoing psychotherapy, peer support, family and community remain important throughout any process of care.

At ATMA CENA, coordinating with a person's existing providers is part of responsible care. Through the CoCare program, ATMA CENA can also partner with a person's existing therapist where that therapist has the appropriate training and a service agreement is in place.

What psychedelic-assisted therapy involves

Psychedelic-assisted therapy is a structured clinical process, not a single appointment. It combines psychotherapy with a supervised medicine session, and most of the work happens in the sessions before and after. For a broader introduction, see What is psychedelic therapy? and ATMA CENA's overview of psychedelic-assisted therapy.

Assessment and screening

The process begins with an intake and clinical assessment. A clinician reviews your history, current health, medications, supports and goals, and decides with you whether PAT is appropriate. For some people, the answer will be no, or not yet, and the clinician will talk with you about other options.

Preparation

Preparation sessions build trust with your therapist, help you clarify your intentions, explain what the process will look like, and make practical plans for the day of the medicine session and the days afterward. This is also when consent is discussed in detail, so you understand the process and can ask questions. Learn more about the preparation phase.

The medicine session

The medicine session takes place in a calm, private clinical setting with trained clinicians present throughout. The focus is on your comfort, support and well-being. Your care team will explain what to expect for your own session, how long it may last and how you will get home afterward.

Integration

Integration sessions follow the medicine session. With your therapist, you reflect on the experience, make sense of what came up, and consider how insights might connect to your daily life, relationships and goals. Integration is ongoing psychotherapy, and it continues alongside your other care. Learn more about the integration phase.

How to talk to a clinician about psychedelic-assisted therapy

Bringing up a new topic with your doctor or therapist can feel awkward, especially if you have already tried many things. It can help to go in prepared. Some practical steps:

1. Write down your history. List the approaches you have tried, roughly when, for how long, and what you noticed. Include psychotherapy, medications and any other care.
2. Describe how you are doing now. Share your current symptoms, how they affect daily life, and what you most want to change.
3. Ask open questions. For example: "Would a fresh assessment be useful?", "Is there anything in my history we should look at again?", "What do you think about psychedelic-assisted therapy for someone in my situation?"
4. Ask about fit. "What would make PAT inappropriate for me?" is just as useful a question as "Is it an option?"
5. Ask about coordination. "How would you stay involved in my care if I explored this?"

A good clinician will welcome these questions, even if their answer is that another approach makes more sense for you right now.

Costs and insurance

Costs vary by clinic, province and the services involved. In general terms, a course of care may include an intake assessment, psychotherapy sessions for preparation and integration, and clinical time for the medicine session. Psychotherapy delivered by registered professionals, such as psychologists, social workers or registered psychotherapists, is often covered in part by extended health benefits, depending on your plan.

Before starting, it is worth asking your insurer which professional designations your plan covers and how much coverage is available each year. Some people may also have coverage through programs such as Veterans Affairs Canada. See insurance coverage for psychedelic-assisted therapy in Canada for more on the questions to ask. ATMA CENA's team can walk you through costs for its own services on an information call.

How ATMA CENA supports people exploring their options

ATMA CENA provides mental health care, including psychedelic-assisted therapy, at its clinics in Calgary and Edmonton and through a national network of member clinics. Care starts with listening and a careful assessment, and a clinician decides with each person whether any treatment, including PAT, is appropriate.

ATMA CENA's role includes:

• A clinical intake and assessment that looks at the whole person, including history, health, supports and goals.
• Preparation and integration psychotherapy with trained clinicians.
• Coordination with your existing care team, with your consent.
• Partnership with your existing therapist through CoCare, where the therapist has appropriate training and an agreement is in place.
• Honest conversations about fit, including when PAT is not the right path.

If you want to understand whether ATMA CENA's services fit your situation, you can book a free information call.

Frequently asked questions

What does "treatment-resistant depression" mean?

It is a clinical term for major depression that has not improved enough after several adequate attempts at standard care during the current episode. Definitions vary slightly between clinicians and guidelines. It describes what has been tried so far, not what is possible in the future.

Does treatment-resistant mean nothing will help me?

No. The term describes a history of care. A fresh, thorough assessment often helps clarify what has been missed and what options remain. If you are feeling hopeless, please reach out to your care team, and if you are in crisis, call or text 988.

Is psychedelic-assisted therapy right for me?

That can only be answered through a full clinical assessment. A clinician looks at your history, current health, medications and supports, and decides with you whether PAT is appropriate. For some people, another approach will be a better fit.

Should I stop my current medication before exploring PAT?

No. Do not stop or change any medication on your own. Any change should be planned with the clinician who manages that medication. Keep your current care in place while you explore options.

How many sessions does psychedelic-assisted therapy involve?

It depends on the person and the care plan. The process typically includes an assessment, several preparation sessions, a medicine session and several integration sessions. Your care team will explain the plan for your own situation.

Can my current therapist be involved?

Often, yes. Through the CoCare program, ATMA CENA can partner with a person's existing therapist where that therapist has appropriate training and a service agreement is in place. With your consent, ATMA CENA can also coordinate with your doctor and other providers.

Where do I start?

Start with your current care team, and consider a fresh assessment. If you would like to learn about ATMA CENA's services, you can book a free information call.

About this article

This article is general education about mental health care. It is not medical advice, and it is not a recommendation of any treatment for any individual. Decisions about care belong with you and a qualified clinician who knows your history.

About the author

Reverdi Darda, RN, BScN, Reg #61707 | CEO & Founder, ATMA CENA

Reverdi Darda, RN is CEO and Founder of ATMA CENA and a Registered Nurse with over three decades of experience in healthcare operations, community engagement, policy development and strategic planning. A recognized leader in mental health access, Reverdi has dedicated her career to improving how people find and receive mental health care. She founded ATMA CENA to expand practitioner and public access to psychedelic-assisted therapy across Canada.

Related articles

• How to Qualify for Psychedelic Therapy in Canada
• Psychedelic therapy FAQs: a Canadian patient guide
• What is psychedelic therapy?
• The preparation phase of psychedelic therapy
• The integration phase of psychedelic therapy

Ready to talk?

If you are living with depression that has not lifted and want to understand your options, ATMA CENA's clinical team is here to listen. Book a free information call to start the conversation.