Evidence map›Paper›PMID 32096915›Full record

ArticleCancer medicine2020

Treatment times in breast cancer patients receiving neoadjuvant vs adjuvant chemotherapy: Is efficiency a benefit of preoperative chemotherapy?

Nicole M Melchior, Darren B Sachs, Gabrielle Gauvin, Cecilia Chang, Chihsiung E Wang, Elin R Sigurdson, John M Daly, Allison A Aggon, Shelly B Hayes, Elias I Obeid and 1 more

Abstract readComparative Study
In one paragraph

Article in Cancer medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Nicole M MelchiorDepartment of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA.ORCID 0000-0002-7811-6121
Darren B SachsDepartment of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA.
Gabrielle GauvinDepartment of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA.
Cecilia ChangBiostatistics Core, NorthShore University HealthSystem Research Institute, Evanston, IL, USA.
Chihsiung E WangBiostatistics Core, NorthShore University HealthSystem Research Institute, Evanston, IL, USA.
Elin R SigurdsonDepartment of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA.
John M DalyDepartment of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA.
Allison A AggonDepartment of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA.
Shelly B HayesDepartment of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA.
Elias I ObeidDepartment of Medical Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA.
Richard J BleicherDepartment of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA.

Funding

WORD PROCESSING CENTER--COREP30CA006927 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI Margaret von Mehren · 1985 to 2026
$138.8M
NCI NIH HHS P30 CA006927
6 · The paper itself

Abstract

BACKGROUND/

objectiveDelays in times to surgery, chemotherapy, and radiotherapy impair survival in breast cancer patients. Neoadjuvant chemotherapy (NAC) confers equivalent survival to adjuvant chemotherapy (AC), but it remains unknown which approach facilitates faster initiation and completion of treatment.

methodsWomen ≥18 years old with nonrecurrent, noninflammatory, clinical stage I-III breast cancer diagnosed between 2004 and 2015 who underwent both surgery and chemotherapy were reviewed from the National Cancer Database.

resultsAmong 155 606 women overall, 28 241 patients received NAC and 127 365 patients received AC. NAC patients had higher clinical T and N stages (35.8% T3/4 vs 4.9% T3/4; 14.4% N2/3 vs 3.7% N2/3). After adjusting for stage and other factors, NAC patients had longer times to begin treatment (36.1 vs 35.4 days adjusted, P = .15), and took significantly longer to start radiotherapy (240.8 vs 218.2 days adjusted, P < .0001), and endocrine therapy (301.6 vs 275.7 days adjusted, P < .0001). Unplanned readmissions (1.2% vs 1.7%), 30-day mortality (0.04% vs 0.01%), and 90-day mortality (0.30% vs 0.08%) were all low and clinically insignificant between NAC and AC.

conclusionCompared to patients receiving AC, those receiving NAC do not start treatment sooner. In addition, patients receiving NAC do not complete treatment faster. Although there are clear indications for administering NAC vs AC, rapidity of treatment should not be considered a benefit of giving chemotherapy preoperatively.

Indexed as

Preoperative CareAntineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsChemotherapy, AdjuvantFemaleFollow-Up StudiesHumansMiddle AgedNeoadjuvant TherapyPrognosisSurvival Ratebreast cancercancer managementneoadjuvant chemotherapysurgery

Identifiers

PMID32096915
PMCPMC7163083

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.