Evidence map›Paper›PMID 33196042›Full record

ArticleNeuro-oncology advances

Dose escalation of osimertinib for intracranial progression in EGFR mutated non-small-cell lung cancer with brain metastases.

Iris M Goldstein, Laila C Roisman, Shoshana Keren-Rosenberg, Julia Dudnik, Hovav Nechushtan, Ilan Shelef, Vered Fuchs, Waleed Kian, Nir Peled

Open access · goldAbstract read
In one paragraph

Article in Neuro-oncology advances. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.8field-weighted citation impact, top 12% 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

19 citing papers in PubMed, 26 citations in OpenAlex.

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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

9 authors at 4 institutions in 1 country.

Iris M GoldsteinThe Legacy Heritage Oncology Center and Dr. Larry Norton Institute, Soroka Medical Center, Beer-Sheva, Israel.
Laila C RoismanThe Legacy Heritage Oncology Center and Dr. Larry Norton Institute, Soroka Medical Center, Beer-Sheva, Israel.ORCID 0000-0001-8455-9327
Shoshana Keren-RosenbergLin Medical Center, Haifa, Israel.
Julia DudnikThe Legacy Heritage Oncology Center and Dr. Larry Norton Institute, Soroka Medical Center, Beer-Sheva, Israel.
Hovav NechushtanOncology Division, Hadassah Medical Center, Jerusalem, Israel.
Ilan ShelefDiagnostic Imaging Institute, Soroka University Medical Center, Beer-Sheba, Israel.
Vered FuchsFaculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
Waleed KianThe Legacy Heritage Oncology Center and Dr. Larry Norton Institute, Soroka Medical Center, Beer-Sheva, Israel.
Nir PeledThe Legacy Heritage Oncology Center and Dr. Larry Norton Institute, Soroka Medical Center, Beer-Sheva, Israel.
Soroka Medical Center · ILBen-Gurion University of the Negev · ILHadassah Medical Center · ILHaifa Medical Center · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOsimertinib is a selective irreversible epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI) with increased penetration across the blood-brain barrier compared with previous EGFR-TKIs, and thus, a 52% reduction in the risk of intracranial disease progression is seen when it is used as a first line of therapy compared with gefitinib and erlotinib. It is also efficient as second-line therapy for patients who developed the T790M resistance mutation following treatment with previous generation TKIs. Here, we report 11 patients who were treated by an increasing dose of osimertinib from 80 mg to 160 mg QD orally following intracranial progression in either first- or second-line setting.

methodsThis is a subcohort analysis from a larger nonrandomized, phase 2, open-label trial, evaluating the efficacy of osimertinib dose escalation from 80 mg to 160 mg in EGFR-mutated advanced non-small-cell lung cancer (NSCLC) patients with intracranial progression in either first- (arm A) or second-line setting (arm B for T790M+ and C for T790M-).

resultsEleven patients, 5 in arm A, 4 in arm B, and 2 in arm C were reported in this study. The mPFS of osimertinib before dose escalation was 11.4 ± 8.9 (6.6-30.7) months for arm A, 8.7 ± 1.8 (6.3-11.2) for arm B, and 14.5 ± 7.8 (6.7-22.3) for arm C. Intracranial response rate to dose escalation was 54% (6 of 11) with 2 of 11 having intracranial stability. Median iPFS was 4.3 ± 7.4 (0.7-25.5) months; 3.8 ± 6.4 (1.8-18.9), 5.6 ± 9.7 (0.7-25.5), and 7.0 ± 2.7 (4.3-9.6) for arms A/B/C, respectively. Dose escalation was well tolerated with diarrhea and paronychia as the main dose-limiting symptoms.

conclusionsOsimertinib 160 mg is feasible and may offer a therapeutic alternative for patients with isolated intracranial progression on osimertinib standard (80 mg) dose. Further studies on CNS osimertinib pharmacokinetics are needed to test this hypothesis.

Indexed as

brain metastasesdose escalationEGFRosimertinib

Identifiers

PMID33196042
PMCPMC7648590
OpenAlexW3088368515

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.