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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03109639
Other study ID # EUS01042017
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date April 13, 2017
Est. completion date November 30, 2017

Study information

Verified date March 2020
Source Singapore General Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Endoscopic ultrasound guided fine needle aspiration (EUS-FNA) is the technique of choice to evaluate solid gastrointestinal (GI) lesions. The tissue acquired using this technique is essential for diagnosis of diseases like sub-mucosal masses (GIST), lymphoma, autoimmune pancreatitis and pancreatic cancer. Also the availability of adequate tissue will enable performance of molecular profiling and personalized oncologic therapy. The current needle used for tissue acquisition rarely provides tissue blocks needed for histology assessment. Hence, a better needle device with a good safety profile is needed to solve this technical difficulty. The new AcquireTM fine needle biopsy device could over come this difficulty because of its unique designs. The additional cutting edge surface allows better tissue access and provides core tissue (>90%) for histology. The safety profile of this new device is comparable to the conventional FNA needle thereby making it an ideal device for tissue acquisition.


Description:

Endoscopic ultrasound has become the preferred method to characterise gastrointestinal (GI) wall and peri-gastrointestinal masses. A major strength is that it can be used to guide fine needle aspiration (EUS-FNA) of any lesion in the wall or within 5cm from the GI tract. However, EUS-FNA has a major drawback- it rarely able to provide tissue blocks. Thus multiple passes, each of them time consuming, are necessary to obtain adequate cellular samples for cytological analysis. A radically new design of FNA needle (AcquireTM) has recently become available. The needle has an additional cutting edge surface, which allows better tissue access and acquires intact large core samples. The flexibility of the needle permits its use in tortuous anatomy, thereby making it an ideal needle for FNA. The new AcquireTM fine needle biopsy device (FNB) provides core tissue (>90%) for histology. This ability of the needle will enable us to obtain core tissue in fewer passes and make a precise diagnosis. However, at present there is no prospective randomized study to validate this finding.

The investigators hypothesize that the unique cutting system of Acquire TM fine needle biopsy (FNB) device will improve the specimen adequacy of solid intestinal and extra-intestinal lesions by providing a good core tissue for analysis.


Recruitment information / eligibility

Status Completed
Enrollment 36
Est. completion date November 30, 2017
Est. primary completion date November 30, 2017
Accepts healthy volunteers No
Gender All
Age group 21 Years to 99 Years
Eligibility Inclusion Criteria:

1. Age older than 21 years

2. All patients with solid lesions (pancreas, lymph nodes, metastasis, liver and sub-epithelial lesions) referred for EUS- FNA

3. Solid lesions confirmed by at least a single investigational modality, mainly CT, MRI or endoscopy

4. Able to comply with the study procedure and provide informed consent.

Exclusion Criteria:

1. Presence of active bleeding

2. Presence of coagulopathy as evidenced by INR>1.5 and platelets <50,000

3. Inability to sample because of intervening blood vessels seen during imaging or EUS.

4. Poor patient tolerance to procedure

5. Concurrent intake of anti-coagulants and thienopyridine (e.g clopidogrel) in patients who require anti-platelet therapy.

6. Pregnancy

Study Design


Intervention

Device:
Conventional EUS FNA needle
Participants randomised to Group A will undergo tissues acquisition using the Conventional EUS FNA needle and then crossed over to receive the experimental Acquire EUS- FNB device.
Acquire FNB device
Participants randomised to Group B will undergo tissue acquisition using the experimental Acquire EUS FNB device and then crossed over to receive the conventional EUS FNA needle

Locations

Country Name City State
Singapore Singapore General Hospital Singapore

Sponsors (1)

Lead Sponsor Collaborator
Singapore General Hospital

Country where clinical trial is conducted

Singapore, 

Outcome

Type Measure Description Time frame Safety issue
Primary Tissue adequacy rate will be measured by assessing for the presence of histological core tissue representative of the lesion in the samples obtained using the two needles The samples will be analyzed by the blinded pathologist for presence of histological core. Based on the presence of histological core, the sample will be graded optimal or suboptimal. Optimal specimens are those in which the procured material enabled satisfactory assessment of histologic architecture. Suboptimal specimens are those in which the quality of the core is inadequate or unsatisfactory for the assessment of histologic architecture 8 months
Secondary Quantification of the sample obtained using the two EUS needles will be assessed by measuring the DNA and RNA concentration Both cell block and core biopsies will be deparafinized and extraction with Qiagen RNA/ DNA kit will be performed. Both DNA and RNA will be quantified by Qubit system 8 months
Secondary Qualification of the sample obtained using the two needles will be performed by spectroscopic analysis.The ratio of absorbance at 260 nm and 280nm; the ratio of absorbance at 260nm and 230nm will be measured Spectroscopic analysis will be performed to assess the purity samples. The 260/280 and 260/230 ratios will be measured. A lower ratio may indicate the presence of impurities. 8 months
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