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Screen for hepatitis B virus in all cancer patients starting systemic treatment. Find out more about hepatitis B virus screening and management.

Drug Formulary information is intended for use by healthcare professionals. It is not intended to be medical advice. Some of the information, including information about funding for cancer drugs, does not apply to all patients. Cancer treatment plans are unique to each patient. If you are a patient, please speak with your healthcare team to understand how this information applies to you.

A - Regimen Name

AC-NPAC(W) Regimen
ADRIAMYCIN ® (DOXOrubicin)-Cyclophosphamide then nab-PACLitaxel Weekly
AC-NPAC(W)+TRAS Regimen
ADRIAMYCIN ® (DOXOrubicin)-Cyclophosphamide then nab-PACLitaxel Weekly and Trastuzumab


Disease Site
Breast


Intent
Neoadjuvant
Adjuvant

Regimen Category
Evidence-informed :

Regimen is considered appropriate as part of the standard care of patients; meaningfully  improves outcomes (survival, quality of life), tolerability or costs compared to alternatives (recommended by the Disease Site Team and national consensus body e.g. pan-Canadian Oncology Drug Review, pCODR).  Recommendation is based on an appropriately conducted phase III clinical trial relevant to the Canadian context OR (where phase III trials are not feasible) an appropriately sized phase II trial. Regimens where one or more drugs are not approved by Health Canada for any indication will be identified under Rationale and Use.

This Regimen Abstract is an abbreviated version of a Regimen Monograph and contains only top level information on usage, dosing, schedule, cycle length and special notes (if available). Information in regimen abstracts is accurate to the extent of the ST-QBP regimen master listings, and has not undergone the full review process of a regimen monograph. Full regimen monographs will be published for each ST-QBP regimen as they are developed.


Rationale and Uses

Neo-adjuvant or adjuvant treatment for node-positive and high risk node-negative early breast cancer, in patients who experienced hypersensitivity reactions to taxanes or have significant contraindications to taxanes and/or their pre-medications.

Trastuzumab may be used concurrently with nab-paclitaxel or after completion of nab-paclitaxel in HER-2 positive breast cancer.

(Refer to the NDFP eligibility form for detailed funding criteria)


Supplementary Public Funding

nab-PACLitaxel
New Drug Funding Program (Nab-Paclitaxel - Hypersensitivity Reactions to Taxanes) (NDFP Website )

trastuzumab
New Drug Funding Program (Trastuzumab (Biosimilar) - Adjuvant Treatment for Breast Cancer)

 
B - Drug Regimen

Note: Different trastuzumab products are not interchangeable

Nab-PACLitaxel is not-interchangeable with other PACLitaxel formulations.

 

AC: (x 4 cycles)

DOXOrubicin
60 mg /m² IV Day 1; q21 days
cyclophosphamide
600 mg /m² IV Day 1; q21 days


THEN

nab-PACLITAXEL Weekly:  (x 12 doses)

nab-PACLitaxel

*

125 mg /m² IV Day 1; q7 days


*May be given as nab-Paclitaxel 125 mg/m2 Days 1, 8, 15; q28 days for 4 cycles (Gianni 2018)

 

For patients with HER2 positive tumours, Trastuzumab may be given for one year, starting concurrently with nab-paclitaxel or after 12 weekly cycles of nab-paclitaxel:

trastuzumab
8 mg /kg IV loading dose Day 1, cycle 1 only


THEN,

trastuzumab
6 mg /kg IV maintenance dose q21 Days

 

 

Alternative chemotherapy schedule:

AC: (x 4 cycles)

DOXOrubicin
60 mg /m² IV Day 1; q14 Days
cyclophosphamide
600 mg /m² IV Day 1; q14 Days


THEN

nab-PACLITAXEL Weekly:  (x 12 doses)

nab-PACLitaxel

*

125 mg /m² IV Day 1; q7 days


*May be given as nab-Paclitaxel 125 mg/m2 Days 1, 8, 15; q28 days for 4 cycles (Gianni 2018)

 

Alternative Trastuzumab schedule:

For patients with HER2 positive tumours, Trastuzumab may be given for one year, starting concurrently with paclitaxel or after 12 weekly cycles of paclitaxel:

trastuzumab
4 mg /kg IV loading dose Day 1, cycle 1 only


THEN,

trastuzumab
2 mg /kg IV maintenance dose Weekly (q7 Days)
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C - Cycle Frequency

AC X 4 cycles then weekly nab-Paclitaxel X 12 doses

Trastuzumab:  To start concurrently with or after paclitaxel. Refer to TRAS regimen for cycles after the chemotherapy is completed

 
D - Premedication and Supportive Measures

Antiemetic Regimen:

High (AC)
Low (nab-Paclitaxel)

Febrile Neutropenia Risk:

Low

AC(Q3W)-NPAC(W)


High

AC(Q2W)-NPAC(W):  Use G-CSF prophylaxis for patients at high risk of febrile neutropenia. See G-CSF recommendations.


Screen for hepatitis B virus in all cancer patients starting systemic treatment. Refer to the hepatitis B virus screening and management guideline.


Pre-medications (prophylaxis for infusion reaction):

Nab-paclitaxel:

  • No pre-medication to prevent hypersensitivity is required.

 

 
J - Administrative Information

Pharmacy Workload (average time per visit)
AC-NPAC(W)
39.742 minutes
AC-NPAC(W)+TRAS
42.646 minutes
Nursing Workload (average time per visit)
AC-NPAC(W)
43.333 minutes
AC-NPAC(W)+TRAS
49.166 minutes
 
K - References

Ontario Health drug monographs:

Cyclophosphamide drug monograph, Ontario Health (Cancer Care Ontario).

Doxorubicin drug monograph, Ontario Health (Cancer Care Ontario).

Nab-paclitaxel drug monograph, Ontario Health (Cancer Care Ontario).

Trastuzumab drug monograph, Ontario Health (Cancer Care Ontario).


AC-PACL±TRAS:

Henderson IC, Berry D, Demetri G, Cirrincione C, et al. Improved outcomes from adding sequential paclitaxel but not from escalating doxorubicin dose in an adjuvant chemotherapy regimen for patients with node-positive primary breast cancer. J Clin Oncol 2003; 21(6): 976-83.

Romond EH, Perex EA, Bryant J, et al. Trastuzumab plus adjuvant chemotherapy for operable HER2-positive breast cancer. NEJM 2005; 353(16) 1673-84.

Sparano JA, Wang M, Martino S, et al. Weekly paclitaxel in the adjuvant treatment of breast cancer. NEJM 2008; 358(16): 1663-71.
 

 

Nab-Paclitaxel:

CADTH Reimbursement Recommendation: Nab-Paclitaxel (for patients who developed hypersensitivity reactions to taxanes). July 2024.

Gianni L, Mansutti M, Anton A, et al.. Comparing Neoadjuvant Nab-paclitaxel vs Paclitaxel Both Followed by Anthracycline Regimens in Women With ERBB2/HER2-Negative Breast Cancer-The Evaluating Treatment With Neoadjuvant Abraxane (ETNA) Trial: A Randomized Phase 3 Clinical Trial. JAMA Oncol. 2018 Mar 1;4(3):302-308.

Untch M, Jackisch C, Schneeweiss A, et al. Nab-paclitaxel versus solvent-based paclitaxel in neoadjuvant chemotherapy for early breast cancer (GeparSepto-GBG 69): a randomised, phase 3 trial. Lancet Oncol. 2016 Mar;17(3):345-356. Erratum in: Lancet Oncol. 2016 Jul;17(7):e270.


PEBC Advice Documents or Guidelines

January 2026 new ST-QBP regimen


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M - Disclaimer

Regimen Abstracts
A Regimen Abstract is an abbreviated version of a Regimen Monograph and contains only top level information on usage, dosing, schedule, cycle length and special notes (if available). It is intended for healthcare providers and is to be used for informational purposes only. It is not intended to constitute or be a substitute for medical advice, and all uses of the Regimen Abstract are subject to clinical judgment. Such information is provided on an “as-is” basis, without any representation, warranty, or condition, whether express, or implied, statutory or otherwise, as to the information’s quality, accuracy, currency, completeness, or reliability, and Cancer Care Ontario disclaims all liability for the use of this information, and for any claims, actions, demands or suits that arise from such use.
Information in regimen abstracts is accurate to the extent of the ST-QBP regimen master listings, and has not undergone the full review process of a regimen monograph.  Full regimen monographs will be published for each ST-QBP regimen as they are developed.
Regimen Monographs
Refer to the New Drug Funding Program or Ontario Public Drug Programs websites for the most up-to-date public funding information.
The information set out in the drug monographs, regimen monographs, appendices and symptom management information (for health professionals) contained in the Drug Formulary (the "Formulary") is intended for healthcare providers and is to be used for informational purposes only. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects of a particular drug, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for a given condition. The information in the Formulary is not intended to constitute or be a substitute for medical advice and should not be relied upon in any such regard. All uses of the Formulary are subject to clinical judgment and actual prescribing patterns may not follow the information provided in the Formulary.
The format and content of the drug monographs, regimen monographs, appendices and symptom management information contained in the Formulary will change as they are reviewed and revised on a periodic basis. The date of last revision will be visible on each page of the monograph and regimen. Since standards of usage are constantly evolving, it is advised that the Formulary not be used as the sole source of information. It is strongly recommended that original references or product monograph be consulted prior to using a chemotherapy regimen for the first time.
Some Formulary documents, such as the medication information sheets, regimen information sheets and symptom management information (for patients), are intended for patients. Patients should always consult with their healthcare provider if they have questions regarding any information set out in the Formulary documents.
While care has been taken in the preparation of the information contained in the Formulary, such information is provided on an “as-is” basis, without any representation, warranty, or condition, whether express, or implied, statutory or otherwise, as to the information’s quality, accuracy, currency, completeness, or reliability.
CCO and the Formulary’s content providers shall have no liability, whether direct, indirect, consequential, contingent, special, or incidental, related to or arising from the information in the Formulary or its use thereof, whether based on breach of contract or tort (including negligence), and even if advised of the possibility thereof. Anyone using the information in the Formulary does so at his or her own risk, and by using such information, agrees to indemnify CCO and its content providers from any and all liability, loss, damages, costs and expenses (including legal fees and expenses) arising from such person’s use of the information in the Formulary.