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Programmed Cell Death 1NCT04657237

Effect of Anesthesia on Expression of Programmed Death-1 and Programmed Death-1 Ligand in Breast Cancer

A study testing Thoracic Paravertebral block in people with Programmed Cell Death 1, run by Assiut University at 1 site in Egypt.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 to 65 years, women only
Conditions the study is for
Programmed Cell Death 1
What is being tested?
Thoracic Paravertebral block
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteEgypt
Study dates
Jan 2017to Nov 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • patients scheduled for breast cancer surgery

Who cannot join

  • 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 .
Show all 10Show fewer
  • 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 .

Trial locations and contacts

1 site in 1 country.

shereen M kamal, assocate professor contact

01006279209

sheridouh79@yahoo.com

Hassan I Kotb, professor contact

01287332042

kotbhi@yahoo.com

Egypt1 site, 1 recruiting
  • South Egypt Cancer Institute

    Asyut, 11715

    Shereen M Kamal, Lecturer, 01006279209, sheridouh79@yahoo.com

    Hassan M Kotb, Professor, kotbhi@yahoo.com

    Recruiting

Other trials in Egypt

About this study

Official title: 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.

Read the 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.

Being tested
Thoracic Paravertebral block
Keywords
brest cancer, programmed cell death1, programmed cell death ligand 1

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Thoracic Paravertebral blockProcedure or surgery

    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

Study groups in NCT04657237
Study groupRoleWhat they receive
control groupNo interventionall 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
TPVB groupActive comparatorPatients 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.
Receives: Procedure: Thoracic Paravertebral block

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. change in level of PD1 and PD1 ligand postoperatively

    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.

    Measured: preoerative (day-0),1st day, and 3 rd day after surgery

Secondary outcomes (1)
  1. total request of analgesia

    the total amount of analgesia (paracetamol) will be recorded and calculated

    Measured: 24 hours postoperative

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 Dec 2020
  2. Study startJan 2017
  3. Primary completionSep 2021 (estimated)
  4. Study completionNov 2021 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04657237
Sponsor's protocol ID
359
Status last verified
Dec 2020
First submitted
17 Nov 2020
Last updated
8 Dec 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Thoracic Paravertebral block in people with Programmed Cell Death 1, run by Assiut University at 1 site in Egypt.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 8 Dec 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact shereen M kamal, assocate professor (01006279209, sheridouh79@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

change in level of PD1 and PD1 ligand postoperatively (time frame: preoerative (day-0),1st day, and 3 rd day after surgery). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Dec 2020.

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