Prediction of Neoadjuvant Chemotherapy Response in Pancreatic Cancer

Официальное название

An Exosomal miRNA Based Predictive Model for Personalized Neoadjuvant Chemotherapy Selection in Pancreatic Ductal Adenocarcinoma

Обзор

This study aims to develop and validate a predictive microRNA (miRNA) panel to assess the response to neoadjuvant chemotherapy (NACT) in patients with resectable and borderline resectable pancreatic ductal adenocarcinoma (PDAC).

Подробное описание

Pancreatic ductal adenocarcinoma (PDAC) remains one of the most lethal malignancies, with a five-year overall survival rate below 12%. Surgical resection combined with systemic chemotherapy offers the best chance for cure; however, only a subset of patients truly benefits from neoadjuvant chemotherapy (NACT). Currently, there are no validated biomarkers to predict response to NACT, making treatment selection largely empirical.

The PRECEPT study (PREdiction of Chemotherapy Effect in Pancreatic Cancer Treatment) aims to identify and validate microRNA (miRNA)-based biomarkers from pre-treatment plasma that can predict therapeutic response to neoadjuvant chemotherapy in patients with resectable or borderline resectable PDAC. Specifically, the study focuses on two standard regimens: FOLFIRINOX and gemcitabine plus nab-paclitaxel (GEM-NABP).

This is a retrospective, non-interventional, observational study using archived plasma samples collected before the initiation of NACT. Exosomal miRNA sequencing (small RNA-seq) has been performed to identify candidate predictive miRNAs. These candidates will be validated using quantitative reverse transcription PCR (qRT-PCR) in an independent patient cohort. The association between miRNA expression levels and pathologic response (CAP grade or tumor regression score) will be analyzed. Additionally, correlations with overall survival (OS) and recurrence-free survival (RFS) will be explored.

Вмешательства

• Диагностический тест Small RNA sequencing
  High-throughput small RNA sequencing performed on pre-treatment plasma samples from PDAC patients in the Discovery cohort to identify candidate microRNAs associated with neoadjuvant chemotherapy response. Sequencing data were analyzed to detect differentially expressed miRNAs between responder (CR + PR + SD) and non-responder (PD) groups.
• Диагностический тест PRECEPT assay (qRT-PCR validation)
  Quantitative reverse transcription PCR (qRT-PCR)-based validation assay performed on pre-treatment plasma samples in the Training and Validation cohorts. Candidate microRNAs identified in the Discovery cohort by small RNA sequencing were tested using the PRECEPT assay to develop and validate a predictive miRNA panel for neoadjuvant chemotherapy response.

Первичные конечные точки

• Pathological Response Rate [Срок оценки: up to 1 year]

Вторичные конечные точки (3)

• Recurrence-Free Survival (RFS) [Срок оценки: Up to 3 years after surgery]
• Overall Survival (OS) [Срок оценки: Up to 5 years after surgery]
• Radiologic Response Rate [Срок оценки: up to 1 year]

Критерии участия

Критерии включения

• Histologically confirmed pancreatic ductal adenocarcinoma (PDAC).
• Underwent neoadjuvant chemotherapy (FOLFIRINOX or Gemcitabine/nab-paclitaxel).
• Availability of pre-treatment plasma samples.
• Underwent curative-intent resection (R0 or R1).

Критерии исключения

• Inadequate plasma samples or poor RNA quality for exosomal miRNA analysis.
• Non-adenocarcinoma histology.
• Presence of synchronous or multiple primary malignancies.
• Receipt of chemotherapy regimens other than standard FOLFIRINOX or gemcitabine plus nab-paclitaxel (GEM-NABP).
• Presence of active inflammatory or autoimmune diseases.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Модель наблюдения

Случай-контроль

Центры проведения

США · 1 центр

• City of Hope Medical Center — Duarte

Публикации

• Mannucci A, Goel A. Advances in pancreatic cancer early diagnosis, prevention, and treatment: The past, the present, and the future. CA Cancer J Clin. 2026 Jan-Feb;76(1):e70035. doi: 10.3322/caac.70035. Epub 2025 Sep 19. PMID 40971231
• Hu ZI, O'Reilly EM. Therapeutic developments in pancreatic cancer. Nat Rev Gastroenterol Hepatol. 2024 Jan;21(1):7-24. doi: 10.1038/s41575-023-00840-w. Epub 2023 Oct 5. PMID 37798442
• Sha M, Gao Y, Yin X, Li X, Liu C, Li S. Engineered exosomes: a promising approach for overcoming challenges in pancreatic cancer therapy. J Nanobiotechnology. 2025 Sep 29;23(1):619. doi: 10.1186/s12951-025-03697-0. PMID 41024179
• Wang C, Tan G, Zhang J, Fan B, Chen Y, Chen D, Yang L, Chen X, Duan Q, Maimaiti F, Du J, Lin Z, Gu J, Luo H. Neoadjuvant Therapy for Pancreatic Ductal Adenocarcinoma: Where Do We Go? Front Oncol. 2022 Jun 16;12:828223. doi: 10.3389/fonc.2022.828223. eCollection 2022. PMID 35785193
• Preis M, Gardner TB, Gordon SR, Pipas JM, Mackenzie TA, Klein EE, Longnecker DS, Gutmann EJ, Sempere LF, Korc M. MicroRNA-10b expression correlates with response to neoadjuvant therapy and survival in pancreatic ductal adenocarcinoma. Clin Cancer Res. 2011 Sep 1;17(17):5812-21. doi: 10.1158/1078-0432.CCR-11-0695. Epub 2011 Jun 7. PMID 21652542
• Philip PA, Lacy J, Portales F, Sobrero A, Pazo-Cid R, Manzano Mozo JL, Kim EJ, Dowden S, Zakari A, Borg C, Terrebonne E, Rivera F, Sastre J, Bathini V, Lopez-Trabada D, Asselah J, Saif MW, Shiansong Li J, Ong TJ, Nydam T, Hammel P. Nab-paclitaxel plus gemcitabine in patients with locally advanced pancreatic cancer (LAPACT): a multicentre, open-label phase 2 study. Lancet Gastroenterol Hepatol. 202 PMID 31953079
• Kunzmann V, Siveke JT, Algul H, Goekkurt E, Siegler G, Martens U, Waldschmidt D, Pelzer U, Fuchs M, Kullmann F, Boeck S, Ettrich TJ, Held S, Keller R, Klein I, Germer CT, Stein H, Friess H, Bahra M, Jakobs R, Hartlapp I, Heinemann V; German Pancreatic Cancer Working Group (AIO-PAK) and NEOLAP investigators. Nab-paclitaxel plus gemcitabine versus nab-paclitaxel plus gemcitabine followed by FOLFIRIN PMID 33338442
• Labori KJ, Bratlie SO, Andersson B, Angelsen JH, Biorserud C, Bjornsson B, Bringeland EA, Elander N, Garresori H, Gronbech JE, Haux J, Hemmingsson O, Liljefors MG, Myklebust TA, Nymo LS, Peltola K, Pfeiffer P, Sallinen V, Sandstrom P, Sparrelid E, Stenvold H, Soreide K, Tingstedt B, Verbeke C, Ohlund D, Klint L, Dueland S, Lassen K; Nordic Pancreatic Cancer Trial-1 study group. Neoadjuvant FOLFIRI PMID 38237621

Идентификаторы

NCT: NCT07226154 · 19288/PRECEPT

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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