- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04657237
Effect of Anesthesia on Expression of Programmed Death-1 and Programmed Death-1 Ligand in Breast Cancer
December 5, 2020 updated by: Shereen Mamdouh, Assiut University
Effect of Anesthesia and Surgical Stress on the Expression of Programmed Death-1 and Programmed Death-1 Ligand on T Lymphocyte After Breast Cancer Surgeries
Surgery is first-line treatment for solid tumors.
However, surgical trauma-induced physiologic stress has been demonstrated to facilitate metastasis and recurrence in different types of cancer.
It has been reported that the PD-1/PD-L1 pathway could be activated by surgical stress.
Hence, we instigate the effect of anesthetic technique on expression of PD1 and PD1 ligand.
Study Overview
Status
Unknown
Conditions
Intervention / Treatment
Detailed Description
The cellular immune response plays a central part in postoperative clearance of tumor cells.
T lymphocytes and natural killer (NK) cells are two predominant cytotoxic effector cells that are the major components of antitumor immunity.
In mouse models, proliferation of T lymphocytes in response to surgical trauma is defective .
Programmed death-1 (PD-1) belongs to the CD28 receptor superfamily.
It is an inhibitory receptor, and its expression is upregulated on activated leukocytes, resulting in an inhibited immune response.
PD-1 interacts with two ligands: programmed death ligand-1 (PD-L1, also referred to as B7-H1) and programmed death ligand-2 (PD-L2, also known as B7-DC).
PD-L2 is expressed mainly on activated dendritic cells (DCs) and macrophages, whereas PD-L1 is distributed widely.
In addition to immune cells, some subsets of tumor cells also express PD-L1 to escape from immunosurveillance.
It has been reported that the PD-1/PD-L1 pathway could be activated by surgical stress.
Hence, we instigate the effect of anesthetic technique on expression of PD1 and PD1 ligand.
Study Type
Interventional
Enrollment (Anticipated)
20
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: shereen M kamal, assocate professor
- Phone Number: 01006279209
- Email: sheridouh79@yahoo.com
Study Contact Backup
- Name: Hassan I Kotb, professor
- Phone Number: 01287332042
- Email: kotbhi@yahoo.com
Study Locations
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Assiut, Egypt, 11715
- Recruiting
- South Egypt Cancer Institute
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Contact:
- Hassan M Kotb, Professor
- Email: kotbhi@yahoo.com
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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
16 years to 63 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
Female
Description
Inclusion Criteria:
- patients scheduled for breast cancer surgery
Exclusion Criteria:
- compromised immune function (such as infection with the human immunodeficiency virus, immunodeficiency, or treatment with corticosteroids, immunosuppressive drugs, or chemotherapy)
- ASA > III
- age> 70 years old.
- patients refusal to the procedure.
- Infection of the skin at or near site of needle puncture.
- Coagulopathy .
- Drug hypersensitivity or allergy to the studied drugs.
- Central or peripheral neuropthy .
- Pre-operative opoid consumption ( within 24 hours preoperative )
- Anomalies of the vertebral column .
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
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
No Intervention: control group
all patients will receive general anesthesia and will receive intravenous paracetamol (1 g) before skin closure and then given every 6 hrs in the 1st postoperative day
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Active Comparator: TPVB group
Patients will receive total volume (20 ml) 0.25% bubivicaine divided equally at each level of T4 and T6 at thoracic paravertebral space then they will recive general anesthesia.
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TPVB will be given using high frequency linear U/S transducer, place the U/S ultrasound probe was placed parallel to the vertebral spine at T4, and, T6 level and shifted 2-3 cm laterally to obtain the appropriate visualization.
Following the identification of pleura, transverse process and paravertebral space, the needle was inserted in caudocranial direction using in-plane approach.
Confirm negative vessel or pleural breach via aspiration then proceed with local anaesthetic 0.25% bupivacaine (20 ml) delivery slowly divided equally at T4and T6; the pleura will be seen to be pushed downward
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
change in level of PD1 and PD1 ligand postoperatively
Time Frame: preoerative (day-0),1st day, and 3 rd day after surgery
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blood sample will be withdrawn and human peripheral blood monocyte cells (PBMCs) will be separated with a Ficoll-Isopaque density gradient.
Flow cytometric analyses will be carried out immediately.
For ex vivo experiments, PBMCs will be cultured with Iscove's modified Dulbecco's medium (IMDM) containing 10 % human serum albumin.
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preoerative (day-0),1st day, and 3 rd day after surgery
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
total request of analgesia
Time Frame: 24 hours postoperative
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the total amount of analgesia (paracetamol) will be recorded and calculated
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24 hours postoperative
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
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
January 1, 2017
Primary Completion (Anticipated)
September 1, 2021
Study Completion (Anticipated)
November 1, 2021
Study Registration Dates
First Submitted
November 17, 2020
First Submitted That Met QC Criteria
December 5, 2020
First Posted (Actual)
December 8, 2020
Study Record Updates
Last Update Posted (Actual)
December 8, 2020
Last Update Submitted That Met QC Criteria
December 5, 2020
Last Verified
December 1, 2020
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 359
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
No
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
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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