Abstract 1359
Background
Across the most commonly diagnosed cancers (breast, colorectal, lung and prostate), advances in curative treatment have led to improvements in cancer survival. Workplace policies for medical leave however, may have been instituted when surgery alone was sufficient treatment for cancer. The duration of adjuvant therapy may not be incorporated into laws providing temporary financial assistance or protecting patients from workplace dismissal. Our objective is to determine the median duration of curative treatment and recovery time for the four common cancers and to understand the implications in the broader context.
Methods
BC Cancer provides cancer care for a population of 4.6 million. A retrospective review was completed of referred patients from 2010-2016, ≤ 65 years old, newly diagnosed with stage I-III breast, colorectal, lung, prostate cancer, received curative intent treatment that includes either chemotherapy or radiotherapy. Information was collected on baseline characteristics, date of diagnosis, surgical procedure and date, radiotherapy type, duration and intent (neoadjuvant/ concurrent/ adjuvant), chemotherapy type, duration and intent.
Results
26,995 patients were included in the study, 11,911 (44%) received definitive radiotherapy or multimodality treatment.Table: 1655P
Breast N = 12706 | Prostate N = 6360 | Colorectal N = 5336 | Lung N = 2593 | |
---|---|---|---|---|
No adjuvant treatment | 4605 | 5377 | 3491 | 1611 |
Definitive radiation or multimodality treatment | 8101 | 983 | 1845 | 982 |
Median time from diagnosis to definitive treatment (weeks) | 5.14 | 13.71 | 4.29 | 5.42 |
Median time between definitive treatment and adjuvant therapy (weeks) | 8.14 | 18.14 | 8.42 | 8.57 |
Median duration of adjuvant chemotherapy (weeks) | 14.29 | N/A | 20.00 | 10.00 |
Median duration of adjuvant radiation +/- chemotherapy (weeks) | 3.85 | 6.71 | 5.00 | 5.57 |
Median duration of definitive radiation +/- chemotherapy (weeks) | N/A | 6.42 | N/A | 6.42 |
Median duration from definitive treatment to completion of all treatment (weeks) | 23.57 | 6.85 | 28.29 | 18.00/6.14* *chemo/xrt |
Conclusions
Almost half of patients who undergo curative cancer treatment require definitive radiotherapy or multimodality treatment. The median duration of therapy varies widely depending on primary site and modality (6.14 - 28.29 weeks). This has implications for financial support such as United Kingdom’s Statutory Sick Pay (28 weeks) and Canada Employment Insurance (15 weeks), as well as workplace dismissal in the United States where the Family and Medical Leave Act protects employees for 12 weeks absence. Governments should consider amending the laws to reflect current cancer treatment durations.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
The authors.
Funding
Has not received any funding.
Disclosure
C. Ho: Honoraria (self), Research grant / Funding (self): AstraZeneca; Honoraria (self), Research grant / Funding (self), Travel / Accommodation / Expenses: Boehringer Ingelheim; Honoraria (self), Travel / Accommodation / Expenses: Pfizer ; Honoraria (self): BMS; Honoraria (self), Travel / Accommodation / Expenses: Roche; Honoraria (self): Lilly; Research grant / Funding (self): Genzyme; Honoraria (self), Research grant / Funding (self): Eisai; Honoraria (self): Merck; Honoraria (self): Bayer. All other authors have declared no conflicts of interest.
Resources from the same session
2316 - A 3D co-culture platform of breast cancer and patient derived immune cells to analyse the response to chemotherapy and immunotherapies
Presenter: Diana Saraiva
Session: Poster Display session 3
Resources:
Abstract
4290 - Characterization of the mechanism of action and efficacy of MEN1611 (PA799), a novel PI3K inhibitor, in breast cancer preclinical models.
Presenter: Alessio Fiascarelli
Session: Poster Display session 3
Resources:
Abstract
2167 - Neat-1: culprit lnRNA tying PIG-C, MSLN, CD80 in TNBC
Presenter: Nada Hussein
Session: Poster Display session 3
Resources:
Abstract
1829 - A novel RAF/MEK inhibitor CH5126766 in phase 1 clinical trial has an effectiveness in the combination with eribulin for the treatment of triple negative breast cancer
Presenter: Hisako Ono
Session: Poster Display session 3
Resources:
Abstract
4357 - Identification of a stemness-related gene panel associated with BET inhibition in triple negative breast cancer
Presenter: Eva Galan-Moya
Session: Poster Display session 3
Resources:
Abstract
5163 - Preclinical Evaluation targeting both IGF1R and IR in Triple Negative Breast Cancer
Presenter: Alex Eustace
Session: Poster Display session 3
Resources:
Abstract
832 - Monospecific antibody targeting of CDH11 inhibits epithelial-to-mesenchymal transition and represses cancer stem cell-like phenotype by up-regulating miR-335 in metastatic breast cancer, in vitro and in vivo.
Presenter: Jia-Hong Chen
Session: Poster Display session 3
Resources:
Abstract
3781 - Pharmacological screening with Chk1 inhibitors identify synergistic agents to overcome resistance to platinums in basal breast and ovarian cancer
Presenter: Ana Lucia Sanabria
Session: Poster Display session 3
Resources:
Abstract
3275 - Comparison of 11 circulating miRNAs and CA125 kinetics in ovarian cancer during first line treatment: data from the randomized CHIVA trial (a GINECO-GCIG study)
Presenter: Patrick Robelin
Session: Poster Display session 3
Resources:
Abstract
3391 - Inhibiting Ehmt2 and Ezh2 histone methyltransferases alters the immune microenvironment in a Trp53-/- murine ovarian cancer model
Presenter: Pavlina Spiliopoulou
Session: Poster Display session 3
Resources:
Abstract