1. What is your understanding of the term difficult-to-treat-depression (DTTD)?

2. What is your understanding of other terms; viz: treatment-resistant depression (TResD) treatment-refractory depression (TRefD), treatment-resistant major depressive disorder (TRMDD) and major depressive disorder (MDD)?

3. What are your experiences of diagnosing DTTD?

4. What are your experiences of managing DTTD?

5. Does your management of these patients include:

a. using an illness management model or a chronic illness model [25] ;

b. communication with GPs;

c. referring the patient to other allied health professionals; and

d. suggesting/prescribing other non-pharmacological and/or complementary treatment?

6. If “no” to any of Question 5, have you ever considered using any of these options/other comments?

We start with an assessment, actually working out what were the presenting problems. (P1)

I think there’s also an element that you aren’t able to engage the person in any level of responsiveness in self-management or anything like that, minimum insight. (P7)