Trial reportAnnals of oncology : official journal of the European Society for Medical Oncology2016
CA19-9 decrease at 8 weeks as a predictor of overall survival in a randomized phase III trial (MPACT) of weekly nab-paclitaxel plus gemcitabine versus gemcitabine alone in patients with metastatic pancreatic cancer.
Trial report in Annals of oncology : official journal of the European Society for Medical Oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 62 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
A Randomized Phase III Study of Weekly ABI-007 Plus Gemcitabine Versus Gemcitabine Alone in Patients With Metastatic Adenocarcinoma of the Pancreas
MPACT Extension Study: Multicenter, Survival Data Collection in Subjects Previously Enrolled in Protocol CA046
An Open Single-center Phase II Clinical Study of Fruquintinib Combined With Chemotherapy in Patients With Liver Metastases From Pancreatic Cancer
Who cites it
62 citing papers in PubMed, 1 synthesis or guideline pooled it, 101 citations in OpenAlex.
- Irreversible electroporation combined with immunotherapy versus irreversible electroporation alone for locally advanced pancreatic cancer: a systematic review and meta-analysis.Einstein (Sao Paulo, Brazil) · 2026Pooled it
- Predictive criteria for overall survival and treatment duration of 2nd-line chemotherapy in patients with advanced pancreatic adenocarcinoma (AIO-PAK-0216).British journal of cancer · 2026Trial
- Nab-paclitaxel plus S-1 followed by gemcitabine-oxaliplatin as first-line alternating sequential treatment of pancreatic ductal adenocarcinoma.The oncologist · 2024Trial
- Effect of a MUC5AC Antibody (NPC-1C) Administered With Second-Line Gemcitabine and Nab-Paclitaxel on the Survival of Patients With Advanced Pancreatic Ductal Adenocarcinoma: A Randomized Clinical Trial.JAMA network open · 2023Trial
- Phase I clinical trial repurposing all-trans retinoic acid as a stromal targeting agent for pancreatic cancer.Nature communications · 2020Trial
- Gemcitabine/nab-paclitaxel with pamrevlumab: a novel drug combination and trial design for the treatment of locally advanced pancreatic cancer.ESMO open · 2020Trial
- A Randomized Phase II Preoperative Study of Autophagy Inhibition with High-Dose Hydroxychloroquine and Gemcitabine/Nab-Paclitaxel in Pancreatic Cancer Patients.Clinical cancer research : an official journal of the American Association for Cancer Research · 2020Trial
- A phase II trial of gemcitabine, S-1 and LV combination (GSL) therapy in patients with advanced pancreatic cancer.Investigational new drugs · 2019Trial
- High Dose Parenteral Ascorbate Inhibited Pancreatic Cancer Growth and Metastasis: Mechanisms and a Phase I/IIa study.Scientific reports · 2017Trial
- Article
- Article
- CA19-9 as a Dynamic Biomarker for Continuous Monitoring of Therapeutic Efficacy in Pancreatic Adenocarcinoma.Cancers · 2025Review
- The Prognostic Impact of Early ctDNA Kinetics in Metastatic Pancreatic Cancer Using the ctDNA-RECIST.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025Article
- Early Tumor Shrinkage and Depth of Response as Predictive Markers of Treatment Response and Prognosis in Solid Tumors.Cancer medicine · 2025Review
- Risk Stratification and Prognosis Determination Based on Protein Lysine Crotonylation in Patients with Resected Pancreatic Cancer: A Multicenter Study.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025Article
- Evaluation of the efficacy and predictive indicators of PD- 1 inhibitors combined with chemotherapy in advanced pancreatic cancer.Scientific reports · 2025Article
- A multicenter prospective observational study for health assessment questionnaires EQ-5D-5L and G8 in unresectable advanced pancreatic cancer treated with first-line gemcitabine plus nab-paclitaxel therapy.International journal of clinical oncology · 2025Observational
- Characterization of an oligometastatic state in patients with metastatic pancreatic adenocarcinoma undergoing systemic chemotherapy.Cancer medicine · 2024Article
- Review
- Implication of Skeletal Muscle Loss in the Prognosis of Patients with Pancreatic Ductal Adenocarcinoma Receiving Chemotherapy.Internal medicine (Tokyo, Japan) · 2023Article
2 more citing papers are in PubMed but not listed here.
Corrections and comments
- Commented on by
Authors and funding
17 authors at 9 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundA phase I/II study and subsequent phase III study (MPACT) reported significant correlations between CA19-9 decreases and prolonged overall survival (OS) with nab-paclitaxel plus gemcitabine (nab-P + Gem) treatment for metastatic pancreatic cancer (MPC). CA19-9 changes at week 8 and potential associations with efficacy were investigated as part of an exploratory analysis in the MPACT trial. PATIENTS AND
methodsUntreated patients with MPC (N = 861) received nab-P + Gem or Gem alone. CA19-9 was evaluated at baseline and every 8 weeks.
resultsPatients with baseline and week-8 CA19-9 measurements were analyzed (nab-P + Gem: 252; Gem: 202). In an analysis pooling the treatments, patients with any CA19-9 decline (80%) versus those without (20%) had improved OS (median 11.1 versus 8.0 months; P = 0.005). In the nab-P + Gem arm, patients with (n = 206) versus without (n = 46) any CA19-9 decrease at week 8 had a confirmed overall response rate (ORR) of 40% versus 13%, and a median OS of 13.2 versus 8.3 months (P = 0.001), respectively. In the Gem-alone arm, patients with (n = 159) versus without (n = 43) CA19-9 decrease at week 8 had a confirmed ORR of 15% versus 5%, and a median OS of 9.4 versus 7.1 months (P = 0.404), respectively. In the nab-P + Gem and Gem-alone arms, by week 8, 16% (40/252) and 6% (13/202) of patients, respectively, had an unconfirmed radiologic response (median OS 13.7 and 14.7 months, respectively), and 79% and 84% of patients, respectively, had stable disease (SD) (median OS 11.1 and 9 months, respectively). Patients with SD and any CA19-9 decrease (158/199 and 133/170) had a median OS of 13.2 and 9.4 months, respectively.
conclusionThis analysis demonstrated that, in patients with MPC, any CA19-9 decrease at week 8 can be an early marker for chemotherapy efficacy, including in those patients with SD. CA19-9 decrease identified more patients with survival benefit than radiologic response by week 8.
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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 OpenQuestion graph.