Time to first-line chemotherapy and travel distance to the cancer center and their relationship to subsequent-line therapies in stage IV CRC.

Authors

null

Mahjabeen Fatima Iqbal

King's College London, London, United Kingdom

Mahjabeen Fatima Iqbal , Aleksi Emil Suo , Neha Papneja , Nayyer Iqbal , Tahir Abbas , Kamal Haider , Adnan Zaidi , Shahid Ahmed

Organizations

King's College London, London, United Kingdom, University of Saskatchewan, Saskatoon, SK, Canada, Department of Medicine, University of Saskatchewan, Saskatoon, SK, Canada, Saskatchewan Cancer Agency, Saskatoon, SK, Canada, Saskatoon Cancer Centre, Saskatchewan Cancer Agency, University of Saskatchewan, Saskatoon, SK, Canada, Saskatoon Cancer Centre, University of Saskatchewan, Saskatoon, SK, Canada, Saskatchewan Cancer Agency, University of Saskatchewan, Saskatoon, SK, Canada, Department of Medical Oncology, Saskatoon Cancer Centre, Saskatchewan Cancer Agency, University of Saskatchewan, Saskatoon, SK, Canada

Research Funding

No funding sources reported

Background: Second and third line therapies in stage IV colorectal (CRC) have been associated with significant improvement in survival. However, not all patients receive all available therapies. Delay in starting treatment and travel burden can affect patient access and use of future therapy. Little is known about time to first line chemotherapy (TC) and travel distance to cancer center (TD) and their relationship to future therapies in stage IV CRC. The study aims to determine relationship between TC and TD with second and subsequent line of therapies. Methods: A patients cohort diagnosed with synchronous stage IV CRC during 2006-2010 in the province of Saskatchewan, Canada was studied. Patients with ECOG performance status of > 1 or who did not receive chemotherapy were excluded. The logistic regression analyses were performed to assess relationship between TC and TD and subsequent line therapies. Results: 569 patients were diagnosed with synchronous stage IV CRC. 326 patients received first line chemotherapy (mostly FOLFIRI ± bevacizumab). Of 326 patients 62 with ECOG performance status (PS) > 1 were excluded. The median age of 264 eligible patients was 62 yrs (IQR:53-72). 61% were male and 38% had ECOG PS of 0. Mean Charlson score was 9±1.3. 24% underwent metastasectomy. Median TC was 77 days (IQR: 53-107) and median TD was 64.4 km (IQR:4.8-166). 42.8% patients had to travel > 100 km for their treatment. Of 326 patients 144 (55%) received future therapies. On multivariate analysis absence of comorbid illness (as per Charlson comorbid index), odd ratio (OR) 1.45 (95% CI: 1.19-1.77), no metastasectomy, OR 1.89 (1.03-3.46) and TD < 100 km, OR 1.69 (1.003-2.84) were correlated with the utility of 2ndand subsequent line therapies. Conclusions: Our result revealed that although time to first line chemotherapy did not correlate with future systemic therapies, travel distance to Cancer Center > 100 km was associated with low rate of second or subsequent line therapies in statge IV CRC patients with good performance status.

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Abstract Details

Meeting

2016 Gastrointestinal Cancers Symposium

Session Type

Poster Session

Session Title

Poster Session C: Cancers of the Colon, Rectum, and Anus

Track

Cancers of the Colon, Rectum, and Anus

Sub Track

Multidisciplinary Treatment

Citation

J Clin Oncol 34, 2016 (suppl 4S; abstr 724)

DOI

10.1200/jco.2016.34.4_suppl.724

Abstract #

724

Poster Bd #

L21

Abstract Disclosures