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Cervical Cancer Stage IB1NCT05167149

Carbon Nanoparticles and Indocyanine Green for Sentinel Lymph Node Biopsy in Early Stage Cervical Cancer

A study testing Carbon nanoparticles and Indocyanine green in people with Cervical Cancer Stage IB1, run by Cancer Institute and Hospital, Chinese Academy of Medical Sciences at 1 site in China.

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 The sponsor has not verified this record for over two years, so it may be out of date.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

The metastasis rate of pelvic lymph node in early cervical cancer is low. Systemic lymph node resection is traumatic and has many complications. Sentinel lymph node (SLN) biopsy can effectively avoid unnecessary lymph node dissection, which has been recommended in clinical guidelines. Read more about this study

Who is it for?
Ages 18 to 70 years, women only
Conditions the study is for
Cervical Cancer Stage IB1
What is being tested?
Carbon nanoparticles and Indocyanine green
Could I receive a placebo?
No, everyone receives an active treatment
How many people
144 participants
Where
1 siteChina
Study dates
Feb 2022to Jun 2023
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 70 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Cervical squamous cell carcinoma, adenocarcinoma and adenosquamous carcinoma diagnosed by pathological biopsy;
  • Tumor stage is IB1 (FIGO 2018);
  • No distant metastasis (chest, abdominal and pelvic enhanced CT or positron emission tomography (PET) -CT);
  • 18-70 years old;
  • Eastern Cooperative Oncology Group (ECOG) score ≤ 2 and tolerable for radical hysterectomy and systemic lymph node resection;
  • No obvious dysfunction or chronic disease of heart, liver and kidney, and no history of other malignant tumors;
  • Volunteer to participate in the study and sign the informed consent.

Who cannot join

  • Residual cervical cancer;
  • Small cell carcinoma, neuroendocrine carcinoma and other special histological types;
  • Patients who have received radiotherapy or chemotherapy before enrollment;
  • Allergic constitution, allergic to iodine;
  • ICG skin test is positive;
  • Patients considered unsuitable for inclusion by the researchers.

Trial locations and contacts

1 site in 1 country.

Hongyi Hou, M.D. contact

+86 13031191717

cdhhongyi@163.com

China1 site
  • Department of Gynecological Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College

    Beijing, Beijing Municipality, 100021

    Bin Li, M.D., +86 13801364117, libin@cicams.ac.cn

    Bin Li, M.D.

Other trials in China

About this study

Official title: A Randomized Controlled Comparison Study of Carbon Nanoparticles and Indocyanine Green for Sentinel Lymph Node Biopsy in Early Stage Cervical Cancer

The metastasis rate of pelvic lymph node in early cervical cancer is low. Systemic lymph node resection is traumatic and has many complications. Sentinel lymph node (SLN) biopsy can effectively avoid unnecessary lymph node dissection, which has been recommended in clinical guidelines. Indocyanine green(ICG) fluorescence imaging as the method of SLN mapping is recommended in international guidelines. However, the imaging equipment is very expensive which limits the popularization of ICG in different medical centers of various surgical volumes. Carbon nanoparticle is an innovative tracer without any special imaging equipment for SLN mapping in China. Some retrospective researches have proved that carbon nanoparticle is effective, simple, economic and suitable for popularization in different medical centers. In this study, a prospective randomized controlled trial will be conducted to analyze the non-inferiority of carbon nanoparticles compared to ICG, and to verify the application value of carbon nanoparticles. 144 cervical cancer patients with stage IB1 (FIGO2018) will be prospectively enrolled and randomly divided into two groups (R = 1:1). 72 patients will undergo SLN biopsy with carbon nanoparticles and 72 patients will be mapped by ICG. The primary endpoint is overall SLN detection rate. The secondary endpoints include bilateral SLN detection rate, the number of SLN detected, sensitivity, false negative rate and negative predictive value of SLN biopsy. Diagnostic accuracy will be evaluated at both pelvis and patient levels. What's more, SLN pathological ultrastaging will be conducted to increase the diagnostic accuracy. The hypothesis of this study is that the overall SLN detection rate by carbon nanoparticles is not inferior to that using ICG. And the differences of bilateral SLN detection rate, sensitivity, false negative rate and negative predictive value between two groups are not significant.

Read the detailed description

This is a prospective randomized controlled non-inferiority trial. Patients with early stage cervical cancer who met the inclusion criteria are divided into carbon nanoparticle group and ICG group by block random method. It is assumed that the overall SLN detection rate was PT (90%) in experimental group(carbon nanoparticle) and was PC (85%) in control group (ICG). The non-inferiority threshold Δ is -10%. The type I error and type II error of the hypothesis test are set as 0.05 and 0.2 respectively. The sample size is 60 cases in each group calculated by"Non inferiority tests for two proportions"method of Power Analysis and Sample Size (PASS) Software 11.0. After calculation, considering the 20% shedding rate, the sample size is 144 totally. There are 72 cases in experimental group and 72 cases in control group. Radical hysterectomy and systemic pelvic lymph node dissection are conducted after SLN resection, and paraaortic lymph node biopsy is conducted when necessary. Sentinel lymph nodes will be cut at 2-mm intervals perpendicular to the long axis in a bread-loaf fashion. Sentinel lymph nodes are then fixed in formalin and embedded in paraffin. Routine hemotoxin \& eosin(H\&E) staining is used for each SLN. Subsequent ultrastaging is performed if the initial H\&E assessment is negative. SLN ultrastaging is performed by cutting three 5-μm sections at two levels, 50-μm apart, from each paraffin block of negative SLN. At the first level, two adjacent 5-μm sections are stained with H\&E and immuno-histochemistry using the anti-cytokeratin AE1:AE3, respectively. At the second level, one 5-μm section is evaluated by H\&E staining. Nonsentinel lymph nodes are bisected parallel to the long axis and stained with H\&E staining.Nodal metastases are classified as (1) isolated tumor cells (ITCs) (single cells or clusters ≤ 0.2mm in largest dimension),(2) micrometastases (tumor deposits 0.2mm-2 mm), or (3) macrometastases (tumor deposits > 2mm). All pathological reviews will be finished by two independent gynecologic pathologists in the Department of Pathology of Cancer Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College. A third senior pathologist is invited to decide the diagnosis when discordance occurs.

Being tested
Carbon nanoparticles, Indocyanine green
Keywords
Early Stage Cervical Cancer, Sentinel Lymph Node Biopsy, Carbon Nanoparticle, Indocyanine Green, Ultrastaging

What participants receive

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

  • Carbon nanoparticlesProcedure or surgery

    After pneumoperitoneum is established and laparoscopic instruments are prepared, according to National Comprehensive Cancer Network (NCCN) guidelines, 1ml diluted ICG solution (25 mg /10 ml) is injected into the submucosa around tumor at 3 and 9 o'clock of the cervix (2ml totally) with 1ml syringe. ICG should be slowly injected to avoid drug leakage. Intratumoral and deep cervical stroma injection should be avoided. The retroperitoneum is dissected immediately after injection under the multimodel observation of fluorescence laparoscopy. Search the fluorescent labeled lymphatics from bilateral parametrium to iliac vessels. The diffusion of ICG is rapid , and it is easy to spread to the next stations lymph nodes. The first fluorescent labeled lymph nodes on each lymphatic drainage pathway are identified as SLNs, other than all fluorescent lymph nodes. All detectable SLNs and enlarged or suspicious nodes regardless of mapping are resected for pathological examination alone.

  • Indocyanine greenProcedure or surgery

    After pneumoperitoneum is established and laparoscopic instruments are prepared, according to NCCN guidelines, 0.5ml(25mg) carbon nanoparticle solution (the dose was from our retrospective study) is injected into the submucosa around tumor at 3 and 9 o'clock of the cervix (1ml totally) with 1ml syringe. Carbon nanoparticle should be slowly injected to avoid drug leakage. Intratumoral and deep cervical stroma injection should be avoided. The retroperitoneum is dissected immediately after injection. Search the black lymphatics from bilateral parametrium to iliac vessels. Because there is no fluorescence penetration as ICG, the black lymphatic vessels should be dissected carefully.The first black lymph nodes on each lymphatic drainage pathway are identified as SLNs, other than all black lymph nodes. All detectable SLNs and enlarged or suspicious nodes regardless of mapping are resected for pathological examination alone.

Study groups in NCT05167149
Study groupRoleWhat they receive
Carbon nanoparticles groupExperimentalNot described
Receives: Procedure: Carbon nanoparticles
Indocyanine green groupActive comparatorNot described
Receives: Procedure: Indocyanine green

What is being measured

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

  1. Overall SLN detection rate

    The percentage of patients with successfully detected SLNs in all eligible patients.

    Measured: From date of operation to the date of completion of routine pathological examination, usually 2 weeks after operation.

Secondary outcomes (6)
  1. Bilateral SLN detection rate

    The percentage of patients with successfully detected SLNs in both sides of the pelvis in all eligible patients

    Measured: From date of operation to the date of completion of routine pathological examination, usually 2 weeks after operation.

  2. The number of detected SLNs

    The numbers of detected SLNs are calculated by the pathologist.

    Measured: From date of operation to the date of completion of routine pathological examination, usually 2 weeks after operation.

  3. Location of SLNs

    Distribution of SLNs in pelvic and abdominal cavity, including external iliac, obturator fossa, internal ilia, deep inguinal, common iliac, presacral, inferior vena cava, para-aortic, and parametrial regions.

    Measured: From date of operation to the date of completion of routine pathological examination, usually 2 weeks after operation.

  4. Sensitivity of SLN biopsy

    The percentage of patients or pelvises with positive SLNs in pathological examination among those with positive pelvic lymph nodes.

    Measured: From date of operation to the date of completion of SLNs pathological ultrastaging. 3 years.

  5. False negative rate

    The percentage of patients or pelvises with negative SLNs in pathological examination among those with positive pelvic lymph nodes.

    Measured: From date of operation to the date of completion of SLNs pathological ultrastaging. 3 years.

  6. Negative predictive value

    The percentage of patients or pelvises with negative pelvic lymph nodes among those whose SLNs were negative in pathological examination.

    Measured: From date of operation to the date of completion of SLNs pathological ultrastaging. 3 years.

Timeline

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

  1. First posted22 Dec 2021
  2. Study startFeb 2022 (estimated)
  3. Primary completionJun 2023 (estimated)
  4. Study completionJun 2023 (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
Diagnosis
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
144 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05167149
Sponsor's protocol ID
CFH2020-2-4024
Status last verified
Jan 2021
First submitted
15 Jan 2021
Last updated
22 Dec 2021
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Cibula D, Dusek J, Jarkovsky J, Dundr P, Querleu D, van der Zee A, Kucukmetin A, Kocian R. A prospective multicenter trial on sentinel lymph node biopsy in patients with early-stage cervical cancer (SENTIX). Int J Gynecol Cancer. 2019 Jan;29(1):212-215. doi: 10.1136/ijgc-2018-000010.

    PubMed 30640706
  • Cibula D, McCluggage WG. Sentinel lymph node (SLN) concept in cervical cancer: Current limitations and unanswered questions. Gynecol Oncol. 2019 Jan;152(1):202-207. doi: 10.1016/j.ygyno.2018.10.007. Epub 2018 Oct 11.

    PubMed 30318103
  • Frumovitz M, Plante M, Lee PS, Sandadi S, Lilja JF, Escobar PF, Gien LT, Urbauer DL, Abu-Rustum NR. Near-infrared fluorescence for detection of sentinel lymph nodes in women with cervical and uterine cancers (FILM): a randomised, phase 3, multicentre, non-inferiority trial. Lancet Oncol. 2018 Oct;19(10):1394-1403. doi: 10.1016/S1470-2045(18)30448-0. Epub 2018 Aug 22.

    PubMed 30143441
  • Salvo G, Ramirez PT, Levenback CF, Munsell MF, Euscher ED, Soliman PT, Frumovitz M. Sensitivity and negative predictive value for sentinel lymph node biopsy in women with early-stage cervical cancer. Gynecol Oncol. 2017 Apr;145(1):96-101. doi: 10.1016/j.ygyno.2017.02.005. Epub 2017 Feb 8.

    PubMed 28188015
  • Buda A, Crivellaro C, Elisei F, Di Martino G, Guerra L, De Ponti E, Cuzzocrea M, Giuliani D, Sina F, Magni S, Landoni C, Milani R. Impact of Indocyanine Green for Sentinel Lymph Node Mapping in Early Stage Endometrial and Cervical Cancer: Comparison with Conventional Radiotracer (99m)Tc and/or Blue Dye. Ann Surg Oncol. 2016 Jul;23(7):2183-91. doi: 10.1245/s10434-015-5022-1. Epub 2015 Dec 29.

    PubMed 26714944
  • Bats AS, Frati A, Mathevet P, Orliaguet I, Querleu D, Zerdoud S, Leblanc E, Gauthier H, Uzan C, Deandreis D, Darai E, Kerrou K, Marret H, Lenain E, Froissart M, Lecuru F. Contribution of lymphoscintigraphy to intraoperative sentinel lymph node detection in early cervical cancer: Analysis of the prospective multicenter SENTICOL cohort. Gynecol Oncol. 2015 May;137(2):264-9. doi: 10.1016/j.ygyno.2015.02.018. Epub 2015 Feb 26.

    PubMed 25727652
  • Imboden S, Papadia A, Nauwerk M, McKinnon B, Kollmann Z, Mohr S, Lanz S, Mueller MD. A Comparison of Radiocolloid and Indocyanine Green Fluorescence Imaging, Sentinel Lymph Node Mapping in Patients with Cervical Cancer Undergoing Laparoscopic Surgery. Ann Surg Oncol. 2015 Dec;22(13):4198-203. doi: 10.1245/s10434-015-4701-2. Epub 2015 Jun 30.

    PubMed 26122376
  • Zuo J, Wu LY, Cheng M, Bai P, Lei CZ, Li N, Zhang GY, Zhao D, Li B. Comparison Study of Laparoscopic Sentinel Lymph Node Mapping in Endometrial Carcinoma Using Carbon Nanoparticles and Lymphatic Pathway Verification. J Minim Invasive Gynecol. 2019 Sep-Oct;26(6):1125-1132. doi: 10.1016/j.jmig.2018.11.002. Epub 2018 Nov 14.

    PubMed 30445188
  • Kim CH, Soslow RA, Park KJ, Barber EL, Khoury-Collado F, Barlin JN, Sonoda Y, Hensley ML, Barakat RR, Abu-Rustum NR. Pathologic ultrastaging improves micrometastasis detection in sentinel lymph nodes during endometrial cancer staging. Int J Gynecol Cancer. 2013 Jun;23(5):964-70. doi: 10.1097/IGC.0b013e3182954da8.

    PubMed 23694985
  • Cusimano MC, Vicus D, Pulman K, Maganti M, Bernardini MQ, Bouchard-Fortier G, Laframboise S, May T, Hogen LF, Covens AL, Gien LT, Kupets R, Rouzbahman M, Clarke BA, Mirkovic J, Cesari M, Turashvili G, Zia A, Ene GEV, Ferguson SE. Assessment of Sentinel Lymph Node Biopsy vs Lymphadenectomy for Intermediate- and High-Grade Endometrial Cancer Staging. JAMA Surg. 2021 Feb 1;156(2):157-164. doi: 10.1001/jamasurg.2020.5060.

    PubMed 33175109

Questions about this trial

What is this clinical trial studying?

A study testing Carbon nanoparticles and Indocyanine green in people with Cervical Cancer Stage IB1, run by Cancer Institute and Hospital, Chinese Academy of Medical Sciences at 1 site in China.

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 7 inclusion and 6 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 22 Dec 2021. 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 China. 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 Bin Li, M.D. (+86 13801364117, libin@cicams.ac.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Overall SLN detection rate (time frame: From date of operation to the date of completion of routine pathological examination, usually 2 weeks after operation.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05167149, which also lists 10 linked publications.

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 22 Dec 2021.

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