A Clinical Study on the Benefits of Carbon Nanoparticles Injection Time in Patients With Thyroid Cancer.

NCT06791005 | Recruiting Phase 3

• 1 other identifier: nanoc
• Study Type: interventional
• Target: 400
• Locations: 1 country
• Sites: 1

Brief Summary

The detection rate of thyroid cancer (PTC) has increased rapidly in recent years. Except undifferentiated cancer, surgery is still one of the most important treatments for all types of thyroid cancer, and there is a consensus to use the lobes of the gland as the minimum extent of resection. In the meantime, a basic consensus has been reached that central zone lymph node (VI) dissection is the minimum extent of lymph node dissection. In clinical practice, neck surgery and lumpectomy are mostly performed. Hypoparathyroidism and recurrent laryngeal nerve injury are the most common complications of radical surgery for thyroid cancer, both in open surgery and the luminal approach. Once these complications occur, they have a serious impact on the quality of life of patients in the postoperative period. A number of contrast agents are now being used to help minimize complications. Carbon nanoparticles are an effective and non-harmful negative developer, and many studies have confirmed that carbon nanoparticles can be used to identify parathyroid glands in thyroid surgery. Intraoperative injection of nanocarbon is effective in increasing the quality of intraoperative parathyroid detection and lymph node clearance and reducing adverse effects, such as postoperative hypokalemia.However, there is no complete clinical guideline for preoperative intraglandular injection of carbon nanoparticles, and there is no standardized dosage for appropriate injection time, injection dose, and injection method. At the same time, there is still the problem of carbon nanoparticle leakage. At our medical center, we have found that preoperative injection of carbon nanoparticles via ultrasound-guided fine needle puncture may yield better results by reducing CNS exudation in the surgical area. In this study, we will collect more than 400 patients who underwent thyroidectomy in 2025 and underwent carbon nanoparticle injections at different time points and analyzed their intraoperative and postoperative conditions as a basis for analyzing the difference in patient benefits between preoperative and intraoperative carbon nanoparticle injections and to provide data to support the clinical use of carbon nanoparticles.

Conditions

Papillary Thyroid Cancer

Keywords

Papillary Thyroid Cancer; thyroid surgery; developer; complication

Outcome Measures

Primary Outcomes (31)

• age

  Age will be aggregated using "years" as the unit of measurement.

  up to three years

• Genders

  Data will be summarized in terms of "male" and "female" as units of measurement.

  up to three years

• Height

  The height indicator will summarize the data in "meters".

  up to three years

• Weight

  The weight indicator will summarize data in "kilograms".

  up to three years

• BMI

  BMI will be summarized in "kg/m\^2".

  up to three years

• Tumor Diameter Size

  Tumor diameter size will be summarized in "millimeters".

  up to three years

• Tumor Location

  Data will be summarized in terms of "Upper pole of left lobe" , "middle pole of left lobe" , "lower pole of left lobe" , "upper pole of right lobe" , "middle pole of right lobe" , "lower pole of right lobe" , "isthmus" and "multifocal" as units of measurement.

  up to three years

• Pathological Results

  Data will be summarized in terms of detailed pathological results and "none" .

  up to three years

• Preoperative Serum Calcium

  The Calcium indicator will summarize data in "mmol/L".

  up to three years

• Preoperative Serum Thyroid Hormone

  The thyroid hormone indicator will summarize data in "pmol/L".

  up to three years

• Preoperative Serum Parathyroid Hormone

  The parathyroid hormone will summarize data in "pmol/L".

  up to three years

• Preoperative serum TSH

  The TSH indicator will summarize data in "mlU/L".

  up to three years

• Preoperative Vocal Cord Movement Problems or Laryngoscopy Result

  Data will be summarized in terms of "normal" , "symptomatic" and "laryngoscopy abnormal" as units of measurement.

  up to three years

• Carbon Nanoparticles Injection Site

  Data will be summarized in terms of "Upper pole of left lobe" , "middle pole of left lobe" , "lower pole of left lobe" , "upper pole of right lobe" , "middle pole of right lobe" , "lower pole of right lobe" , "isthmus" and "multi-site injection" as units of measurement.

  up to three years

• Number of Carbon Nanoparticles Injections

  Number of Carbon Nanoparticles Injections

  up to three years

• Carbon Nanoparticles Injection Dose

  Injection dose will be summarized in "milliliter".

  up to three years

• Duration of The Operation

  The duration of the operation will summarize data in "h". The time interval from the induction of anesthesia to the end of surgery was selected as the length of surgery, according to the surgical care records

  up to three years

• Number of Lymph Node Dissection

  Record the total number of lymph nodes dissected, the number of lymph nodes dissected in the central region, the number of lymph nodes dissected in the lateral cervical region and the number of metastatic lymph nodes detected.

  up to three years

• Intraoperative Hemorrhage

  The intraoperative hemorrhage will summarize data in "milliliter".

  up to three years

• Thyroid Staining

  Data will be summarized in terms of "A" ,"B" and "C" as units of measurement. A.The stained thyroid is good in the center and at the margins, with clear staining at the edges; B.The stained thyroid gland has good central staining, and the margins are grossly stained, so that the marginal pattern can be roughly observed; C.The stained thyroid stains well, with poorly stained margins;

  up to three years

• Lymph node staining

  Data will be summarized in terms of "A" ,"B" and "C" as units of measurement. A.The center and margins of the stained lymph nodes are well stained, and the margins are clearly stained; B. The stained lymph nodes have good central staining and grossly stained margins; the marginal pattern can be roughly observed, and the lymph nodes are definite on palpation; C.Good central staining of the stained lymph nodes, unclear staining of the margins, and precise palpation of the lymph nodes.

  up to three years

• Parathyroid Glands Staining

  Data will be summarized in terms of "A" ,"B" and "C" as units of measurement. A.Good central infiltration, uniform and clear staining throughout the gland; B.Central infiltration is good, staining of the entire gland is still uniform, but flaky stained areas are seen, and the gland is exact on palpation; C.Central infiltration is fair, staining of the entire gland is stellate with no obvious shape, and the gland is exact on palpation.

  up to three years

• Nanocarbon Leakage

  Data will be summarized in terms of "A" ,"B" and "C" as units of measurement. A.no visible leakage, only slight leakage at the injection site, not affecting the parathyroid glands or the recurrent laryngeal nerve; B.leakage is present and visible to the naked eye, but less than 1/2 of the entire operative field, with staining of the trachea, thyroid peritoneum, and anterior cervical musculature; C.Leakage is present and reaches 1/2 of the entire operative field or Carbon Nanoparticles results in staining of the parathyroid glands or the recurrent laryngeal nerve, affecting identification.

  up to three years

• Duration of Postoperative Pain

  The duration of postoperative pain will summarize data in "days".

  up to three years

• Postoperative Drainage

  The postoperative drainage will summarize data in "milliliter".

  up to three years

• Length of Postoperative Hospitalization

  The length of postoperative hospitalization will summarize data in "days"

  up to three years

• Postoperative Serum Parathyroid Hormone

  The parathyroid hormone will summarize data in "pmol/L".

  up to three years

• Numbness of The Hands and Feet

  The numbness of the hands and feet will be summarized with a "yes" or "no" to the data.

  up to three years

• Postoperative Laryngeal Recurrent Nerve Irritation and Injury

  Postoperative laryngeal recurrent nerve irritation and injury will be summarized with a "yes" or "no" to the data.

  up to three years

• Postoperative Hematoma

  The postoperative hematoma will be summarized with a "yes" or "no" to the data.

  up to three years

• Postoperative Tracheocutaneous Fistula

  The postoperative tracheocutaneous fistula will be summarized with a "yes" or "no" to the data.

  up to three years

Study Arms (4)

Preoperative Injection Before Partial Thyroidectomy Group

EXPERIMENTAL

Patients in this group will undergo partial thyroidectomy and preoperative injection of carbon nanoparticles.

Drug: Preoperative Injection of Carbon Nanoparticles

Intraoperative Injection During Partial Thyroidectomy Group

ACTIVE COMPARATOR

Patients in this group will undergo partial thyroidectomy and intraoperative injection of carbon nanoparticles.

Drug: Intraoperative Injection of Carbon Nanoparticles

Preoperative Injection Before Total Thyroidectomy Group

EXPERIMENTAL

Patients in this group will undergo total thyroidectomy and preoperative injection of carbon nanoparticles.

Drug: Preoperative Injection of Carbon Nanoparticles

Intraoperative Injection During Total Thyroidectomy Group

ACTIVE COMPARATOR

Patients in this group will undergo total thyroidectomy and intraoperative injection of carbon nanoparticles.

Drug: Intraoperative Injection of Carbon Nanoparticles

Interventions

Preoperative Injection of Carbon Nanoparticles DRUG

1.Medication: Carbon nanoparticles, Chongqing Lemay Pharmaceutical Co. Ltd., production license, Food and Drug Administration Production License No. (China) 2007204, Registration No.: State prescription H20041829. The product is a stable suspension of carbon particles with a diameter of 150 nm.2. 2.Preoperative injection method: The preoperative subgroup was injected with carbon nanoparticles 2-6 hours before surgery, with the patient in the position of padded shoulder, and disinfection around the puncture point was prepared prior to the injection of carbon nanoparticles. Under ultrasound guidance, a fine needle was used to puncture the lower 1/3 of the ventral surface, and no blood was detected on aspiration, i.e., 0.1 mL of carbon nanoparticles was injected into each of the 2 sites of each gland, and the total volume of carbon nanoparticles injected was 0.4 mL, and the depth of injection was approximately within the upper third of the gland.

Preoperative Injection Before Partial Thyroidectomy Group; Preoperative Injection Before Total Thyroidectomy Group

Intraoperative Injection of Carbon Nanoparticles DRUG

Intraoperative injection of carbon nanoparticles: After exposing the thyroid peritoneum, 0.1 mL of carbon nanoparticles was injected into both sides of normal thyroid tissue using a syringe (1 mL). Two spots were needed for each flap, and the total volume of injected carbon nanoparticles was 0.4 mL. Finally, the needle was gently backed up under negative pressure to prevent the leakage of carbon nanoparticles.

Intraoperative Injection During Partial Thyroidectomy Group; Intraoperative Injection During Total Thyroidectomy Group

Eligibility Criteria

• Age: 16 Years - 80 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• Preoperative pathological assessment indicated the presence of thyroid cancer with a maximum diameter of less than 4 cm.
• Postoperative pathological evaluation confirmed bilateral thyroid cancer or lateral lymph node metastasis.
• Vocal cord examination conducted one week prior to surgery revealed no abnormalities.
• The patient had no history of prior thyroid surgery and required a total thyroidectomy.
• Blood pressure was stably controlled.
• The patient regained consciousness and was able to communicate normally.

You may not qualify if:

• Prior to enrollment, the patient had received radiotherapy, chemotherapy, or isotope therapy.
• A documented history of thyroid surgery.
• Age under 16 years.
• Known allergies to the medications under investigation or an inability to tolerate surgical intervention.
• Presence of a retrosternal thyroid tumor.
• Tumor invasion of the parathyroid glands and/or the recurrent laryngeal nerve during surgical procedures.
• Postoperative pathology suggestive of medullary carcinoma or undifferentiated carcinoma.
• Development of a postoperative tracheal fistula.

Sponsors & Collaborators

• Second Affiliated Hospital of Xi'an Jiaotong University: lead

Study Sites (1)

The Second Affiliated Hospital of Xi'an Jiaotong University

Xi'an, Shaanxi, 710000, China

RECRUITING

MeSH Terms

Conditions

Thyroid Cancer, Papillary

Condition Hierarchy (Ancestors)

Adenocarcinoma, Papillary; Adenocarcinoma; Carcinoma; Neoplasms, Glandular and Epithelial; Neoplasms by Histologic Type; Neoplasms; Thyroid Neoplasms; Endocrine Gland Neoplasms; Neoplasms by Site; Head and Neck Neoplasms; Endocrine System Diseases; Thyroid Diseases

Central Study Contacts

Yang Liu, doctor

CONTACT

0086+029-13384986500; individualliu@163.com

Study Design

• Study Type: interventional
• Phase: phase 3
• Allocation: RANDOMIZED
• Masking: TRIPLE
• Who Masked: CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: January 18, 2025
• First Posted: January 24, 2025
• Study Start: January 1, 2025
• Primary Completion: June 30, 2025
• Study Completion: September 30, 2025
• Last Updated: January 24, 2025

Record last verified: 2025-01

Locations

CN (1)