Evidence map›Paper›PMID 26308250›Full record

ReviewOncotarget2015

Timing and extent of response in colorectal cancer: critical review of current data and implication for future trials.

Giuseppe Aprile, Caterina Fontanella, Marta Bonotto, Karim Rihawi, Stefania Eufemia Lutrino, Laura Ferrari, Mariaelena Casagrande, Elena Ongaro, Massimiliano Berretta, Antonio Avallone and 3 more

Abstract readReview
In one paragraph

Review in Oncotarget, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 2 pooled it
–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

7 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Article
  6. Article
  7. 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

13 authors.

Giuseppe AprileDepartment of Medical Oncology, University and General Hospital, Udine, Italy.
Caterina FontanellaDepartment of Medical Oncology, University and General Hospital, Udine, Italy.
Marta BonottoDepartment of Medical Oncology, University and General Hospital, Udine, Italy.
Karim RihawiDepartment of Medical Oncology, University and General Hospital, Udine, Italy.
Stefania Eufemia LutrinoDepartment of Medical Oncology, University and General Hospital, Udine, Italy.
Laura FerrariDepartment of Medical Oncology, University and General Hospital, Udine, Italy.
Mariaelena CasagrandeDepartment of Medical Oncology, University and General Hospital, Udine, Italy.
Elena OngaroDepartment of Medical Oncology, University and General Hospital, Udine, Italy.
Massimiliano BerrettaDepartment of Medical Oncology, National Cancer Institute, Aviano, Italy.
Antonio AvalloneGastrointestinal Medical Oncology Unit, National Cancer Institute, Napoli, Italy.
Gerardo RosatiMedical Oncology Unit, San Carlo Hospital, Potenza, Italy.
Francesco GiulianiDepartment of Medical Oncology, National Cancer Institute, Bari, Italy.
Gianpiero FasolaDepartment of Medical Oncology, University and General Hospital, Udine, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The identification of new surrogate endpoints for advanced colorectal cancer is becoming crucial and, along with drug development, it represents a research field increasingly studied. Although overall survival (OS) remains the strongest trial endpoint available, it requires larger sample size and longer periods of time for an event to happen. Surrogate endpoints such as progression free survival (PFS) or response rate (RR) may overcome these issues but, as such, they need to be prospectively validated before replacing the real endpoints; moreover, they often bear many other limitations. In this narrative review we initially discuss the role of time-to-event endpoints, objective response and response rate as surrogates of OS in the advanced colorectal cancer setting, discussing also how such measures are influenced by the tumor assessment criteria currently employed. We then report recent data published about early tumor shrinkage and deepness of response, which have recently emerged as novel potential endpoint surrogates, discussing their strengths and weaknesses and providing a critical comment. Despite being very compelling, the role of such novel response measures is yet to be confirmed and their surrogacy with OS still needs to be further investigated within larger and well-designed trials.

Indexed as

Research DesignClinical Trials as TopicColorectal NeoplasmsDisease-Free SurvivalDisease ProgressionEndpoint DeterminationEvidence-Based MedicineHumansRisk FactorsSurvival AnalysisTime FactorsTreatment Outcomecolorectal cancerdeepness of responseearly tumor shrinkageendpointresponse rate

Identifiers

PMID26308250
PMCPMC4745687

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.