Evidence map›Paper›PMID 37432559›Full record

SynthesisInternational journal of colorectal disease2023

Evaluating the oncological safety of neoadjuvant chemotherapy in locally advanced colon carcinoma: a systematic review and meta-analysis of randomised clinical trials and propensity-matched studies.

Matthew G Davey, Amira H Amir, Odhrán K Ryan, Mark Donnelly, Noel E Donlon, Mark Regan, Babak Meshkat, Emmeline Nugent, Myles Joyce, Aisling M Hogan

Registry-linked trialOpen access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in International journal of colorectal disease, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06844409 (Assessment of Long-Term Chemotherapy-Induced Peripheral Neuropathy and Its Impact on Quality of Life in Colon Cancer Patients After Neoadjuvant Platinum-Containing Chemotherapy), which is not on this map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
2.5field-weighted citation impact, top 10% of its field
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.

NCT06844409 completednot on this map

Assessment of Long-Term Chemotherapy-Induced Peripheral Neuropathy and Its Impact on Quality of Life in Colon Cancer Patients After Neoadjuvant Platinum-Containing Chemotherapy

TypeobservationalSponsorP. Herzen Moscow Oncology Research InstituteRan2021 to 2024Enrolled54ConditionsChemotherapy Induced Peripheral Neuropathy (CIPN)
3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 11 citations in OpenAlex.

  1. Observational
  2. Article
  3. Article
  4. Review
  5. Article
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

10 authors at 2 institutions in 1 country.

Matthew G DaveyRoyal College of Surgeons in Ireland, 123 St Stephen's Green, Dublin 2, Dublin, Ireland. matthewdavey21@rcsi.com.
Amira H AmirDepartment of Surgery, Galway University Hospitals, Galway, H91 YRY71, Ireland.
Odhrán K RyanDepartment of Surgery, Galway University Hospitals, Galway, H91 YRY71, Ireland.
Mark DonnellyDepartment of Surgery, Galway University Hospitals, Galway, H91 YRY71, Ireland.
Noel E DonlonRoyal College of Surgeons in Ireland, 123 St Stephen's Green, Dublin 2, Dublin, Ireland.
Mark ReganDepartment of Surgery, Galway University Hospitals, Galway, H91 YRY71, Ireland.
Babak MeshkatDepartment of Surgery, Galway University Hospitals, Galway, H91 YRY71, Ireland.
Emmeline NugentDepartment of Surgery, Galway University Hospitals, Galway, H91 YRY71, Ireland.
Myles JoyceDepartment of Surgery, Galway University Hospitals, Galway, H91 YRY71, Ireland.
Aisling M HoganDepartment of Surgery, Galway University Hospitals, Galway, H91 YRY71, Ireland.
University Hospital Galway · IERoyal College of Surgeons in Ireland · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeUse of neoadjuvant chemotherapy (NAC) for locally advanced colon cancer (LACC) remains controversial. An integrated analysis of data from high-quality studies may inform the long-term safety of NAC for this cohort. Our aim was to perform a systematic review and meta-analysis of randomised clinical trials (RCTs) and propensity-matched studies to assess the oncological safety of NAC in patients with LACC.

methodsA systematic review was performed as per preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. Survival was expressed as hazard ratios using time-to-effect generic inverse variance methodology, while surgical outcomes were expressed as odds ratios (ORs) using the Mantel-Haenszel method. Data analysis was performed using Review Manager version 5.4.

resultsEight studies (4 RCTs and 4 retrospective studies) including 31,047 patients with LACC were included. Mean age was 61.0 years (range: 19-93 years) and mean follow-up was 47.6 months (range: 2-133 months). Of those receiving NAC, 4.6% achieved a pathological complete response and 90.6% achieved R0 resection (versus 85.9%, P < 0.001). At 3 years, patients receiving NAC had improved disease-free survival (DFS) (OR: 1.28, 95% confidence interval (CI): 1.02-1.60, P = 0.030) and overall survival (OS) (OR: 1.76, 95% CI: 1.10-2.81, P = 0.020). When using time-to-effect modelling, a non-significant difference was observed for DFS (HR: 0.79, 95% CI: 0.57-1.09, P = 0.150) while a significant difference in favour of NAC was observed for OS (HR: 0.75, 95% CI: 0.58-0.98, P = 0.030).

conclusionThis study highlights the oncological safety of NAC for patients being treated with curative intent for LACC using RCT and propensity-matched studies only. These results refute current management guidelines which do not advocate for NAC to improve surgical and oncological outcomes in patients with LACC.

trial registrationInternational Prospective Register of Systematic Review (PROSPERO) registration: CRD4202341723.

Indexed as

Colonic NeoplasmsNeoadjuvant TherapyDisease-Free SurvivalHumansMiddle AgedOdds RatioRandomized Controlled Trials as TopicColon cancerNeoadjuvant therapiesPersonalised medicine

Identifiers

PMID37432559
PMCPMC10335950
OpenAlexW4383872075

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.