Clinical Trial of Pancreatic Cancer in Stockholm. (SPP)

October 22, 2023 updated by: Matthias Löhr, Karolinska University Hospital

Prospective Populationbased Study on Pancreatic Cancer in Stockholm- Mutation Profiling Characteristics, Biobanking and Risk Factors.

SPP study includes incidence cases of pancreatic cancer in the Stockholm county region from 2007 to 2014. The purpose of SPP study is to estimate relative risk of pancreatic cancer in relation to snuff dipping, overweight/obesity, individual food items, food groups, dietary pattern and various nutrients; to estimate relative risk of pancreatic cancer in relation to exposure to nitrosamines, either endogenously or exogenously; to estimate relative risk of pancreatic cancer in relation to oral health and H.pylori infection and their interaction with ABO blood type; to estimation relative risk of pancreatic cancer in relation to hepatitis B or hepatitis C infection; to estimate relative risk of pancreatic cancer in relation to some genetic polymorphisms, either functional or being suggested in GWAS study; to estimate mutation profile in pancreatic cancer cases, and its correlation with environmental exposures, and the impacts on survival periods in pancreatic cancer patients.

The MeSH name is Carcinoma, Pancreatic Ductal

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The SPP study is a prospective population-based case-control study. We include incident cases of pancreatic cancer in the Stockholm county region during 2008 to 2014. Controls are randomly selected from general population in the Stockholm region, and individually matched to cases by age and sex.

Cases selection. The criteria for cases selection including those are age less than 85 years, born in Sweden and presently living in the county of Stockholm. The cases of pancreatic cancer are first identified within the framework of the clinical healthcare system of the Stockholm County. Through a network, consisting of all surgical clinics and the only oncological clinic in the Stockholm county area, we were able to include a vast majority of cases diagnosed with radiological methods, he or she were asked to participate in the study. After informed consent is obtained from the patient, the study coordinator at the Karolinska University Hospital at Huddinge was notified. The coordinator will inform Statistics Sweden interviewer to interview the case patient. Further, after radiological diagnosis of pancreatic cancer, we try to retrieve a tumor biopsy for every case. In total around 30% of the cases are surgically resected and of the remaining 70% of the patients treated with a palliative intention and among which more than 80% are biopsied using fine needle aspiration (the remaining 20% not biopsied for practical reasons such as clinical deterioration), thus resulting in a total proportion of patients in which tumor tissue is retained of close to 90%.

Control selection. The control persons (non-cancer patients) are randomly identified via the Statistics Sweden. For each case, a gender- and age-matched (same birth year) control person will be identified randomly from the general population of the Stockholm County.

Data collection. Through professional interviewers from the Statistics Sweden, interviews were conducted concerning environmental factors with both cases and control persons. As soon as the study coordinator identified a case of pancreatic cancer and the patient has accepted to participate, Statistics Sweden is contacted about this patient's identify and location. Professional interviewers, blinded to the research hypotheses of the study, will then contact and go to the patient at home, at the hospital or wherever the patient is and perform the interview which is calculated to take around 1 hour and 15 minutes. The questionnaire contains items concerning demographics, socioeconomic factors, physical activity, height and weight history, tobacco and snuff use, dental health, earlier and concomitant diseases and medication history. A structured food frequency questionnaire, a modified version of a previously evaluated questionnaire, including 63 food and beverage items of interest, are used to evaluate dietary habits 20 years prior to interview.

Once a case has been identified, a set of up to 5 controls (same sex and birth year) from Stockholm general population will be selected by the Statistics Sweden. The control persons in the list are contacted by order, until a control person agrees to participate in our study. The interviewers will perform the interview in exactly the same way for the cases.

For each case and control, if they agree, 20 ml of blood are collected. The samples are separated into serum and cells (red and white together) and aliquot into 4 separate serum (for subsequent protein analysis) samples and 2 cell samples after Ficoll gradient (for subsequent DNA and RNA analysis) and immediately frozen to -80°C. Control persons that decline leaving a blood sample are instead offered to leave a saliva sample, from which DNA can be extracted and analyzed.

Study Type

Observational

Enrollment (Actual)

600

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Sweden
      • Stockholm, Sweden, 14186
        • Karolinska University Hospital, Gastrocentrum

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Population based cohort of all patients with pancreatic cancer within the district of Stockholm and age and gender matched healthy controls.

Description

Inclusion Criteria:

  • pancreatic cancer patients that aged less than 85 years old born in Sweden living in Stockholm
  • written informed consent

Exclusion Criteria:

  • pancreatic cancer older than 85 years
  • pancratic cancer younger than 18 years
  • not willing to participate

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Pancreatic cancer
Patients with pancreatic cancer and age&sex-matched controls without any cancer from a distinct population area (district of Stockholm). Patients with pancreatic cancer will be subjected to pancreatic surgery
Procedure: Pancreatic Surgery
Surgical removal of the pancreatic tumour (cancer) in the intervention group
Other Names:
  • Whipple procedure
  • Pancreatic resection
  • Pancreatic head resection

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Survival
Time Frame: 5 years
5 years

Secondary Outcome Measures

Outcome Measure
Time Frame
Factors influencing survival
Time Frame: 5 years
5 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Karolinska University Hospital

Investigators

  • Principal Investigator: Matthias Löhr, Professor, Karolinska University Hospital
  • Study Director: Magnus Nilsson, ass prof, Karolinska University Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2007

Primary Completion (Actual)

February 1, 2017

Study Completion (Actual)

February 1, 2017

Study Registration Dates

First Submitted

June 11, 2014

First Submitted That Met QC Criteria

June 11, 2014

First Posted (Estimated)

June 13, 2014

Study Record Updates

Last Update Posted (Actual)

October 24, 2023

Last Update Submitted That Met QC Criteria

October 22, 2023

Last Verified

October 1, 2023

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2006/1089-31/4 (Other Identifier: Swedish Ethic committee)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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