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Circulating Exosomes As Potential Prognostic And Predictive Biomarkers In Advanced Gastric Cancer Patients ("EXO-PPP Study") (EXO-PPP)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified March 2015 by Roberto A. Pazo-Cid, Hospital Miguel Servet.
Recruitment status was:  Recruiting
Centro Nacional de Investigaciones Oncologicas CARLOS III
Aragon Institute of Health Sciences
Information provided by (Responsible Party):
Roberto A. Pazo-Cid, Hospital Miguel Servet Identifier:
First received: January 26, 2013
Last updated: March 24, 2015
Last verified: March 2015

Exosomes are formed by inward budding of late endosomes, producing multivesicular bodies (MVBs), and are released into the environment by fusion of the MVBs with the plasma membrane. It has been demonstrated that the content and function of exosomes depends on the originating cell and the conditions under which they are produced. Tumor exosome production, transfer and education of bone marrow cells supports tumor growth and metastasis.

In this prospective translational study, preclinical and clinical phases have been designed. On the first step, the main goal is to characterize the molecular profile of gastric cancer derived exosomes. This exosome biosignature may provide a useful diagnostic tool. As a second step, the study will evaluate the prognostic and predictive value of gastric cancer exosomes levels in plasma and kinetics in a prospectively recruited cohort of advanced gastric cancer patients during first-line chemotherapy.

Gastric Cancer

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective
Official Title: Circulating Exosomes As Potential Prognostic And Predictive Biomarkers In Advanced Gastric Cancer Patients: A Prospective Observational Study ("EXO-PPP Study")

Resource links provided by NLM:

Further study details as provided by Roberto A. Pazo-Cid, Hospital Miguel Servet:

Primary Outcome Measures:
  • • Characterization of the molecular profile in tumor derived exosomes from advanced gastric cancer patients undergoing first-line chemotherapy [ Time Frame: Up to 2 years from start of study ]
  • • Correlation of plasma level and kinetics of gastric cancer derived exosomes (at baseline and monthly during therapy until tumor progression or death) and time-to-event end-points: Overall survival, Progression-free survival and Overall response rate. [ Time Frame: Up to 3 years from start of the study ]

Biospecimen Retention:   Samples With DNA
  • Serum
  • Tumor tissue

Estimated Enrollment: 80
Study Start Date: January 2013
Estimated Primary Completion Date: January 2016 (Final data collection date for primary outcome measure)
Advanced gastric cancer patients
Treatment näive advanced gastric cancer patients candidates to first-line chemotherapy
Control group
Healthy adult volunteers without a cancer diagnosis


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Subjects will be adults with advanced or metastatic gastric cancer (AGC), candidates to receive a first-line systemic therapy, who meet all of the inclusion criteria and none of the exclusion criteria within 28 days prior to the first day of study treatment.

Inclusion Criteria:

Subjects eligible for enrollment must meet all of the following criteria:

  1. Provide signed informed consent. The subject is capable of understanding and complying with parameters as outlined in the protocol and able to sign informed consent, approved by the Independent Ethic Committee (IEC)/Institutional Review Board (IRB) prior to the initiation of any study-specific procedures
  2. Men or women aged >= 18 years.
  3. Eastern Cooperative Oncology Group Performance Status (ECOG) <= 2.
  4. Histologically confirmed adenocarcinoma of the stomach, gastroesophageal junction or esophagus.
  5. Metastatic disease or locally advanced disease not amenable to curative surgery.
  6. Radiographically assessable, non-measurable disease or measurable disease as per RECIST criteria.
  7. Life expectancy of at least 12 weeks from the time of enrollment.
  8. No other malignancy within the past 5 years except adequately treated basal cell or squamous cell skin cancer or carcinoma in situ of the cervix.
  9. No prior chemotherapy for advanced disease.

Exclusion Criteria:

Subjects meeting any of the following criteria must not be enrolled in the study:

  1. Gastric carcinoid, sarcomas, or squamous cell cancer.
  2. Pregnant or lactating females.
  3. Significant neurological or psychiatric disorders (psychotic disorders, dementia or seizures) that would prohibit the understanding and giving of informed consent.
  4. Active Hepatitis B or C or history of an HIV infection.
  5. Active uncontrolled infection.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01779583

Contact: Roberto A. Pazo-Cid, MD (+34) 976-765-500 ext 1147

Medical oncology Department, Miguel Servet University Hospital Recruiting
Zaragoza, Spain, 50009
Contact: ROBERTO A PAZO-CID, MD    (+34) 976-765-500 ext 1147   
Sponsors and Collaborators
Hospital Miguel Servet
Centro Nacional de Investigaciones Oncologicas CARLOS III
Aragon Institute of Health Sciences
Principal Investigator: HECTOR PEINADO, PhD Weill Medical College of Cornell University
Study Chair: PILAR MARTIN-DUQUE, PhD Francisco de Vitoria´s University - Aragon Institute of Health Sciences
Study Director: ROBERTO A PAZO-CID, MD Aragon Institute of Health Sciences - Medical Oncology Department, Miguel Servet University Hospital
  More Information

Additional Information:
Responsible Party: Roberto A. Pazo-Cid, MD, Hospital Miguel Servet Identifier: NCT01779583     History of Changes
Other Study ID Numbers: EXO-PPP study
Study First Received: January 26, 2013
Last Updated: March 24, 2015

Keywords provided by Roberto A. Pazo-Cid, Hospital Miguel Servet:
Advanced gastric cancer

Additional relevant MeSH terms:
Stomach Neoplasms
Gastrointestinal Neoplasms
Digestive System Neoplasms
Neoplasms by Site
Digestive System Diseases
Gastrointestinal Diseases
Stomach Diseases processed this record on September 21, 2017