Evidence map›Paper›PMID 33227663›Full record

ArticleTranslational oncology2021

Enhanced toxicity with CDK 4/6 inhibitors and palliative radiotherapy: Non-consecutive case series and review of the literature.

Steven David, Gwo Ho, Daphne Day, Marion Harris, Jennifer Tan, Shom Goel, Gerard G Hanna, Ranjana Srivastava, Gill Kruss, Lachlan McDowell and 1 more

Open access · goldAbstract read
In one paragraph

Article in Translational oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.4field-weighted citation impact, top 9% 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.

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

14 citing papers in PubMed, 29 citations in OpenAlex.

  1. Radiation recall dermatitis in cancer patients previously undergoing radiotherapy: a scoping review.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025
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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 at 3 institutions in 1 country.

Steven DavidDepartment of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Monash Cancer Centre, East Bentleigh, VIC, Australia. Electronic address: steven.david@petermac.org.
Gwo HoMonash Cancer Centre, East Bentleigh, VIC, Australia; School of Clinical Sciences, Monash University, Clayton, VIC, Australia.
Daphne DayMonash Cancer Centre, East Bentleigh, VIC, Australia; School of Clinical Sciences, Monash University, Clayton, VIC, Australia.
Marion HarrisMonash Cancer Centre, East Bentleigh, VIC, Australia.
Jennifer TanDepartment of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Monash Cancer Centre, East Bentleigh, VIC, Australia.
Shom GoelDepartment of Cancer Medicine, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC, Australia.
Gerard G HannaDepartment of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC, Australia.
Ranjana SrivastavaMonash Cancer Centre, East Bentleigh, VIC, Australia.
Gill KrussMonash Cancer Centre, East Bentleigh, VIC, Australia.
Lachlan McDowellDepartment of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC, Australia.
Michelle WhiteMonash Cancer Centre, East Bentleigh, VIC, Australia.
Monash Medical Centre · AUThe University of Melbourne · AUPeter MacCallum Cancer Centre · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Current first-line systemic treatment in most patients with metastatic hormone receptor-positive, HER-2 negative breast cancer is an aromatase inhibitor in combination with a cyclin dependant kinase (CDK) 4/6 inhibitor. Frequently, these patients require palliative radiotherapy (RT) for symptomatic disease management. There is a paucity of data on the safety of combining a CDK 4/6 inhibitor with palliative RT, with conflicting case reports in the literature. We report on 5 cases at our institution where enhanced radiotherapy toxicity was observed when palliative doses of RT was delivered during or prior to treatment with a CDK 4/6 inhibitor. After review of pre-clinical and mechanistic data, we hypothesise that the effects of CDK4/6 inhibition on normal tissue and the tumour microenvironment may impede tissue recovery and exacerbate acute radiation and radiation recall toxicities. Further studies are required to clarify the potential toxicities of this combination. Clinicians should consider the potential risks when combining CDK 4/6 inhibitors with palliative RT and individualise patient management accordingly.

Indexed as

CDK 4/6 inhibitorPalliativeRadiation recallRadiotherapyToxicity

Identifiers

PMID33227663
PMCPMC7689545
OpenAlexW3108200773

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.