Decisions about neoadjuvant systemic therapy for breast cancer: a survey of Australian and New Zealand specialists

A survey of Australian and New Zealand clinical practice with neoadjuvant systemic therapy for breast cancer

BACKGROUND

Neoadjuvant systemic therapy (NAST) has become an established treatment option for women with operable breast cancer.

AIM

We aimed to better understand NAST treatment patterns, barriers and facilitators in Australia and New Zealand.

METHODS

We undertook a cross-sectional survey of the current clinical practice of Australian and New Zealand breast cancer specialists. Questions included referral patterns for NAST, patient selection, logistics, decision making and barriers.

RESULTS

Of 207 respondents, 162 (78%) reported routinely offering NAST to selected patients with operable breast cancer (median 9% of patients offered NAST). Specialty, location, practice type, gender or years of experience did not predict for offering NAST. In all, 45 and 58% wanted to increase the number of patients who receive NAST in routine care and in clinical trials respectively. Facilitators included the multidisciplinary team meeting and access to NAST clinical trials. Specialist-reported patient barriers included: patient desire for immediate surgery (63% rated as important/very important); lack of awareness of NAST (50%); concern about progression (43%) and disinterest in downstaging (32%). Forty-three per cent of participants experienced system-related barriers to the use of NAST, including other clinicians' lack of interest (27%); lack of clinical trials (24%) and unacceptable wait for a medical oncology appointment (37%).

CONCLUSION

This group of Australian and New Zealand clinicians are interested in NAST for operable breast cancer in routine care and clinical trials. Patient- and system-related barriers that prevent the optimal uptake of this treatment approach will need to be systematically addressed if NAST is to become a more common approach.

A Decision Aid for Women Considering Neoadjuvant Systemic Therapy for Operable Invasive Breast Cancer: Development and Protocol of a Phase II Evaluation Study (ANZ1301 DOMINO)

Background

Neoadjuvant systemic therapy is offered to selected women with large and/or highly proliferative operable breast cancers. This option adds further complexity to an already complex breast cancer treatment decision tree. Patient decision aids are an established method of increasing patient involvement and knowledge while decreasing decisional conflict. There is currently no decision aid available for women considering neoadjuvant systemic therapy.

Objective

We aimed to develop a decision aid for women diagnosed with operable breast cancer and considered suitable for neoadjuvant systemic therapy, and the protocol for a multicenter pre-post study evaluating the acceptability and feasibility of the decision aid.

Methods

The decision aid was developed through literature review, expert advisory panel, adherence to the International Patient Decision Aid Standards, and iterative review. The protocol for evaluation of the decision aid consists of the following: eligible women will undertake a series of questionnaires prior to and after using the decision aid. The primary endpoint is decision aid acceptability to patients and investigators and the feasibility of use. Secondary endpoints include change in decisional conflict, participant knowledge, and information involvement preference. Feasibility is defined as the proportion of eligible participants who use the decision aid to help inform their treatment decision.

Results

This study has recruited 29 out of a planned 50 participants at four Australian sites. A 12-month recruitment period is expected with a further 12-months follow-up.

Conclusions

The decision aid has the potential to allow patients with operable breast cancer, who have been offered neoadjuvant systemic therapy, decreased decisional conflict, and greater involvement in the decision. If this study finds that an online decision aid is feasible and acceptable, it will be made widely available for routine clinical practice.

Trial Registration

Australian and New Zealand Clinical Trials Registry ACTRN12614001267640; http://www.anzctr.org.au/TrialSearch.aspx?searchTxt=ACTRN12614001267640&isBasic=True (Archived by WebCite at http://www.webcitation.org/6gh7BPZdG)