Evidence map›Paper›PMID 34860318›Full record

Trial reportBreast cancer research and treatment2022

Ipatasertib plus paclitaxel for PIK3CA/AKT1/PTEN-altered hormone receptor-positive HER2-negative advanced breast cancer: primary results from cohort B of the IPATunity130 randomized phase 3 trial.

Nicholas Turner, Rebecca A Dent, Joyce O'Shaughnessy, Sung-Bae Kim, Steven J Isakoff, Carlos Barrios, Shigehira Saji, Igor Bondarenko, Zbigniew Nowecki, Qinshu Lian and 6 more

Registry-linked trialOpen access · hybridAbstract readClinical Trial, Phase IIIRandomized Controlled Trial
In one paragraph

Trial report in Breast cancer research and treatment, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03337724 (A Double-Blind, Placebo-Controlled, Randomized Phase III Study of Ipatasertib in Combination With Paclitaxel as a Treatment for Patients With PIK3CA/AKT1/PTEN-Altered, Locally Advanced or Metastatic, Triple-Negative Breast Cancer or Hormone Receptor-Positive, HER2-Negative Breast Cancer), which is not on this map. Cited by 54 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 3 pooled it
4.8field-weighted citation impact, top 4% 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.

NCT03337724 phase3completednot on this map

A Double-Blind, Placebo-Controlled, Randomized Phase III Study of Ipatasertib in Combination With Paclitaxel as a Treatment for Patients With PIK3CA/AKT1/PTEN-Altered, Locally Advanced or Metastatic, Triple-Negative Breast Cancer or Hormone Receptor-Positive, HER2-Negative Breast Cancer

TypeinterventionalSponsorHoffmann-La RocheRan2018 to 2023Enrolled579ConditionsBreast CancerArmsIpatasertib, Paclitaxel, Placebo
3 · Its place in the literature

Who cites it

54 citing papers in PubMed, 3 syntheses or guidelines pooled it, 87 citations in OpenAlex.

  1. Pooled it
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  7. Review
  8. Article
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  12. Ipatasertib in Patients with Tumors with AKT Mutations: Results from the NCI-MATCH ECOG-ACRIN Trial (EAY131) Subprotocol Z1K.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Genomic Predictive Biomarkers in Breast Cancer: TheInternational journal of molecular sciences · 2025
    Review
  18. 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 at 12 institutions in 10 countries.

Nicholas TurnerBreast Unit, The Royal Marsden NHS Foundation Trust, Fulham Road, London, SW3 6JJ, UK. Nick.Turner@icr.ac.uk.ORCID http://orcid.org/0000-0001-8937-0873
Rebecca A DentDivision of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore.
Joyce O'ShaughnessyDepartment of Medical Oncology, Texas Oncology, Baylor University Medical Center, US Oncology, Dallas, TX, USA.
Sung-Bae KimDepartment of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
Steven J IsakoffDivision of Hematology and Oncology, Massachusetts General Hospital, Boston, MA, USA.
Carlos BarriosLatin American Cooperative Oncology Group, Oncology Research Service, Hospital São Lucas, PUCRS, Porto Alegre, RS, Brazil.
Shigehira SajiDepartment of Medical Oncology, Fukushima Medical University Hospital, Fukushima, Japan.
Igor BondarenkoOncology and Medical Radiology Department, City Clinical Hospital No. 4, Dnipropetrovsk, Ukraine.
Zbigniew NoweckiOncology Centre, Instytut im. Marii-Sklodowskiej, Warsaw, Poland.
Qinshu LianBiostatistics, Genentech, Inc, South San Francisco, CA, USA.
Sarah-Jayne ReillyPharma Development, Roche Products Ltd, Welwyn Garden City, UK.
Heather HintonProduct Development Safety, F. Hoffmann-La Roche Ltd, Basel, Switzerland.
Matthew J WongchenkoOncology Biomarker Development, Genentech, Inc, South San Francisco, CA, USA.
Bruno KovicPatient-Centered Outcomes Research, Product Development, Hoffmann-La Roche Limited, Mississauga, ON, Canada.
Aruna ManiProduct Development Oncology, Genentech, Inc, South San Francisco, CA, USA.
Mafalda OliveiraMedical Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain.
Fukushima Medical University Hospital · JPHospital São Lucas da PUCRS · BRMassachusetts General Hospital · USNational Cancer Centre Singapore · SGRegional Clinical Hospital named after II Mechnikov · UARoche (Canada) · CARoche (Switzerland) · CHRoche (United Kingdom) · GBRoyal Marsden NHS Foundation Trust · GBTexas Oncology · USUlsan College · KRVall d'Hebron Hospital Universitari · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePI3K/AKT pathway alterations are frequent in hormone receptor-positive (HR+) breast cancers. IPATunity130 Cohort B investigated ipatasertib-paclitaxel in PI3K pathway-mutant HR+ unresectable locally advanced/metastatic breast cancer (aBC).

methodsCohort B of the randomized, double-blind, placebo-controlled, phase 3 IPATunity130 trial enrolled patients with HR+ HER2-negative PIK3CA/AKT1/PTEN-altered measurable aBC who were considered inappropriate for endocrine-based therapy (demonstrated insensitivity to endocrine therapy or visceral crisis) and were candidates for taxane monotherapy. Patients with prior chemotherapy for aBC or relapse < 1 year since (neo)adjuvant chemotherapy were ineligible. Patients were randomized 2:1 to ipatasertib (400 mg, days 1-21) or placebo, plus paclitaxel (80 mg/m

resultsOverall, 146 patients were randomized to ipatasertib-paclitaxel and 76 to placebo-paclitaxel. In both arms, median investigator-assessed PFS was 9.3 months (hazard ratio, 1.00, 95% CI 0.71-1.40) and the objective response rate was 47%. Median paclitaxel duration was 6.9 versus 8.8 months in the ipatasertib-paclitaxel versus placebo-paclitaxel arms, respectively; median ipatasertib/placebo duration was 8.0 versus 9.1 months, respectively. The most common grade ≥ 3 adverse events were diarrhea (12% with ipatasertib-paclitaxel vs 1% with placebo-paclitaxel), neutrophil count decreased (9% vs 7%), neutropenia (8% vs 9%), peripheral neuropathy (7% vs 3%), peripheral sensory neuropathy (3% vs 5%) and hypertension (1% vs 5%).

conclusionAdding ipatasertib to paclitaxel did not improve efficacy in PIK3CA/AKT1/PTEN-altered HR+ HER2-negative aBC. The ipatasertib-paclitaxel safety profile was consistent with each agent's known adverse effects. Trial registration NCT03337724.

Indexed as

Breast NeoplasmsPaclitaxelAntineoplastic Combined Chemotherapy ProtocolsClass I Phosphatidylinositol 3-KinasesDouble-Blind MethodErb-b2 Receptor Tyrosine KinasesFemaleHormonesHumansNeoplasm Recurrence, LocalPhosphatidylinositol 3-KinasesPiperazinesProto-Oncogene Proteins c-aktPTEN PhosphohydrolasePyrimidinesAKT1 protein, humanClass I Phosphatidylinositol 3-KinasesErb-b2 Receptor Tyrosine KinasesHormonesipatasertibPaclitaxelPhosphatidylinositol 3-KinasesPIK3CA protein, humanPiperazinesProto-Oncogene Proteins c-aktPTEN PhosphohydrolasePTEN protein, humanPyrimidinesFirst-lineHER2 negativeHormone receptor positiveIpatasertibPI3K/AKT

Identifiers

PMID34860318
PMCPMC8831286
OpenAlexW3215701750

What Socratic 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 Socratic graph.