Evidence map›Paper›PMID 39058425›Full record

Trial reportClinical cancer research : an official journal of the American Association for Cancer Research2024

Ipatasertib plus Paclitaxel for Patients with PIK3CA/AKT1/PTEN-Altered Locally Advanced Unresectable or Metastatic Triple-Negative Breast Cancer in the IPATunity130 Phase III Trial.

Rebecca A Dent, Sung-Bae Kim, Mafalda Oliveira, Carlos Barrios, Joyce O'Shaughnessy, Steven J Isakoff, Shigehira Saji, Ruffo Freitas-Junior, Manuel Philco, Igor Bondarenko and 6 more

Abstract readRandomized Controlled TrialClinical Trial, Phase IIIMulticenter Study
In one paragraph

Trial report in Clinical cancer research : an official journal of the American Association for Cancer Research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

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  7. Clinicogenomic Landscape and Function ofJCO precision oncology · 2026
    Article
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  9. BMI and Breast Subcutaneous Fat: Potential Indicators for Ultrasound Diagnosis of Breast Cancer?Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2026
    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

16 authors.

Rebecca A DentDivision of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.ORCID 0000-0001-6421-7602
Sung-Bae KimDepartment of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.ORCID 0000-0001-5588-8332
Mafalda OliveiraMedical Oncology Department, Vall d'Hebron University Hospital and Breast Cancer Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain.ORCID 0000-0001-9152-8799
Carlos BarriosLatin American Cooperative Oncology Group (LACOG), Oncoclínicas, Porto Alegre, Brazil.ORCID 0000-0001-6021-667X
Joyce O'ShaughnessyDepartment of Medical Oncology, Baylor University Medical Center, Texas Oncology, US Oncology, Dallas, Texas.ORCID 0000-0002-2955-5523
Steven J IsakoffDivision of Hematology and Oncology, Massachusetts General Hospital, Boston, Massachusetts.ORCID 0000-0002-6677-1014
Shigehira SajiDepartment of Medical Oncology, Fukushima Medical University, Fukushima, Japan.ORCID 0000-0002-6732-8030
Ruffo Freitas-JuniorHospital Araujo Jorge, Goiania, Brazil.ORCID 0000-0003-4145-8598
Manuel PhilcoUnidad de Investigación, Instituto de Oncología y Radioterapia, Clínica Ricardo Palma, San Isidro, Peru.ORCID 0000-0002-8729-208X
Igor BondarenkoOncology and Medical Radiology Department, City Clinical Hospital No. 4, Dnipro, Ukraine.ORCID 0000-0002-7071-2471
Qinshu LianBiostatistics, Genentech, Inc., South San Francisco, California.ORCID 0000-0001-9570-5000
Denise BradleyPharma Development, Roche Products Ltd., Welwyn Garden City, United Kingdom.ORCID 0009-0007-1848-4399
Heather HintonProduct Development Safety, F. Hoffmann-La Roche Ltd., Basel, Switzerland.ORCID 0000-0002-1028-0558
Matthew J WongchenkoOncology Biomarker Development, Genentech, Inc., South San Francisco, California.ORCID 0000-0003-1230-7117
Sarah-Jayne ReillyPharma Development, Roche Products Ltd., Welwyn Garden City, United Kingdom.ORCID 0009-0001-9912-7428
Nicholas TurnerBreast Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom.ORCID 0000-0001-8937-0873

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIn the randomized phase II LOTUS trial, combining ipatasertib with first-line paclitaxel for triple-negative breast cancer (TNBC) improved progression-free survival (PFS), particularly in patients with PIK3CA/AKT1/PTEN-altered tumors. We aimed to validate these findings in a biomarker-selected TNBC population. PATIENTS AND

methodsIn Cohort A of the randomized double-blind placebo-controlled phase III IPATunity130 trial, taxane-eligible patients with PIK3CA/AKT1/PTEN-altered measurable advanced TNBC and no prior chemotherapy for advanced disease were randomized 2:1 to ipatasertib (400 mg, days 1-21) or placebo, both plus paclitaxel (80 mg/m2, days 1, 8, and 15), every 28 days until disease progression or unacceptable toxicity. The primary endpoint was investigator-assessed PFS.

resultsBetween February 2018 and April 2020, 255 patients were randomized (168 to ipatasertib, 87 to placebo). At the primary analysis, there was no significant difference between treatment arms in PFS [hazard ratio 1.02, 95% confidence interval (CI), 0.71-1.45; median 7.4 months with ipatasertib vs. 6.1 months with placebo]. The final analysis showed no difference in overall survival between treatment arms (hazard ratio 1.08, 95% CI, 0.73-1.58; median 24.4 vs. 24.9 months, respectively). Ipatasertib was associated with more grade ≥3 diarrhea (9% vs. 2%) and adverse events leading to dose reduction (39% vs. 14%) but similar incidences of grade ≥3 adverse events (51% vs. 46%). Exploratory subgroup analyses by PAM50 and Burstein gene expression showed inconsistent results.

conclusionsAdding ipatasertib to paclitaxel did not improve efficacy in PIK3CA/AKT1/PTEN-altered advanced TNBC. Biomarkers for benefit from PI3K/AKT pathway inhibition in TNBC remain poorly understood.

Indexed as

Antineoplastic Combined Chemotherapy ProtocolsClass I Phosphatidylinositol 3-KinasesPaclitaxelProto-Oncogene Proteins c-aktPTEN PhosphohydrolaseTriple Negative Breast NeoplasmsAdultAgedAged, 80 and overBiomarkers, TumorDouble-Blind MethodFemaleHumansMiddle AgedPiperazinesProgression-Free SurvivalAKT1 protein, humanBiomarkers, TumorClass I Phosphatidylinositol 3-KinasesipatasertibPaclitaxelPIK3CA protein, humanPiperazinesProto-Oncogene Proteins c-aktPTEN PhosphohydrolasePTEN protein, humanPyrimidines

Identifiers

PMID39058425
PMCPMC11443247

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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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 Socratic graph.