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Giant Cell Tumor of BonePhase 4ICG-GCTBNCT07315828

Accuracy of Indocyanine Green (ICG) Fluorescence Imaging in Giant Cell Tumor of Bone Surgery

A Phase 4 study testing Indocyanine Green in people with Giant Cell Tumor of Bone, run by Shanghai Jiao Tong University Affiliated Sixth People's Hospital at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This study evaluates the diagnostic accuracy of Indocyanine Green (ICG) fluorescence imaging in visualizing residual lesions of Giant Cell Tumor of Bone (GCTB) in the tumor cavity during surgery. Patients diagnosed with GCTB will receive an intravenous injection of ICG prior to the operation to label tumor tissues. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Giant Cell Tumor of Bone
What is being tested?
Indocyanine Green
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteChina
Study dates
2 Jan 2026to Dec 2026
Phase
Phase 4
Are there results?
Not yet: the study is under way

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 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosed with Giant Cell Tumor of Bone(GCTB), via preoperative biopsy or typical imaging (MRI), and scheduled for surgical resection.
  • Capable of understanding the study and voluntarily signing the written informed consent form.

Who cannot join

  • Known severe history of allergy to Indocyanine Green (ICG) or iodine.
  • Severe liver dysfunction.
  • Women who are pregnant or lactating.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Qingcheng Yang, Prof. contact

+86 21 6431 9181

tjyqc@163.com

China1 site, 1 recruiting
  • Shanghai Sixth People's Hospital

    Shanghai

    Qingcheng Yang, Doctor, 021-64369181, tjyqc@163.com

    Recruiting

Other trials in China

About this study

Official title: A Prospective Study on the Accuracy of Indocyanine Green Fluorescence Imaging for the Visualization of Residual Lesions in the Tumor Cavity During Surgery for Giant Cell Tumor of Bone

This study evaluates the diagnostic accuracy of Indocyanine Green (ICG) fluorescence imaging in visualizing residual lesions of Giant Cell Tumor of Bone (GCTB) in the tumor cavity during surgery. Patients diagnosed with GCTB will receive an intravenous injection of ICG prior to the operation to label tumor tissues. During the procedure, surgeons will use a near-infrared fluorescence imaging system to visualize the tumor cavity and identify potential residual lesions after standard curettage. The study aims to determine the sensitivity, specificity, positive predictive value, and negative predictive value of ICG fluorescence imaging by comparing the intraoperative fluorescence findings with the final pathological results of the validation samples.

Read the detailed description

Giant Cell Tumor of Bone (GCTB) poses a significant surgical challenge due to the difficulty in detecting microscopic residual tumor tissues in the bone cavity, which contributes to a high local recurrence rate. This prospective, single-center, single-arm study aims to evaluate the accuracy of Indocyanine Green (ICG) fluorescence imaging in visualizing GCTB lesions during surgery. Eligible patients will receive an intravenous injection of ICG (0.25-0.5 mg/kg) 1-6 hours before surgery. Following standard tumor curettage under white light, the bone cavity will be systematically explored using a near-infrared fluorescence imaging system to visualize potential residual tumor tissues. The surgeon will obtain validation samples from fluorescence-positive areas, fluorescence-negative background tissues, and post-treatment beds for blinded pathological assessment. The study will quantify the diagnostic performance of ICG imaging by calculating sensitivity, specificity, positive predictive value, and negative predictive value based on the pathological gold standard, alongside secondary analyses of tumor-to-background ratios and microscopic tumor boundary concordance.

Being tested
Indocyanine Green
Keywords
Indocyanine Green, Fluorescence Imaging, Near-Infrared Imaging, Giant Cell Tumor of Bone
Medical subject headings
Giant Cell Tumor of Bone

What participants receive

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

  • Indocyanine GreenDrug

    Also called ICG

    Participants receive an intravenous injection of Indocyanine Green (ICG) at a dose of 0.25-0.5 mg/kg, 1-6 hours prior to surgery. Intraoperatively, a near-infrared fluorescence imaging system is used to guide the exploration of the bone cavity. The intervention involves a "verify first, treat later" protocol: it includes diagnostic verification sampling of fluorescence-positive areas and, crucially, therapeutic supplementary curettage of residual fluorescent lesions that were missed during standard white-light surgery.

Study groups in NCT07315828
Study groupRoleWhat they receive
ICG Fluorescence Imaging GroupExperimentalAll enrolled participants receive ICG fluorescence-guided surgery. Following standard tumor curettage, the bone cavity is systematically explored using a near-infrared fluorescence imaging system. The intervention consists of detecting residual fluorescence signals, obtaining verification samples for blinded pathological assessment, and performing supplementary curettage of confirmed suspicious lesions to achieve potentially cleaner surgical margins.
Receives: Drug: Indocyanine Green

What is being measured

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

  1. Diagnostic Accuracy of ICG Fluorescence Imaging (Sensitivity, Specificity, PPV, NPV)

    The diagnostic performance of ICG fluorescence imaging in detecting GCTB lesions will be evaluated by comparing the intraoperative fluorescence status (Positive/Negative) with the final histopathological diagnosis (Tumor/Non-tumor) of the resected specimens. The unit of analysis is the individual specimen. The following metrics will be calculated: Sensitivity, Specificity, Positive Predictive Value (PPV), and Negative Predictive Value (NPV).

    Measured: From the time of surgery until the final pathology report is available, assessed up to 1 week post-operatively.

Secondary outcomes (2)
  1. Tumor-to-Background Ratio (TBR)

    TBR is a quantitative measure of fluorescence intensity. It will be calculated by dividing the mean fluorescence intensity of the tumor region by the mean fluorescence intensity of the adjacent normal background tissue using image analysis software.

    Measured: Intraoperative

  2. Incidence of ICG-Related Adverse Events

    The number of participants experiencing adverse events related to ICG administration (e.g., allergic reactions, anaphylactic shock) will be monitored and recorded.

    Measured: From the time of ICG injection through 24 hours post-surgery

Timeline

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

  1. First posted2 Jan 2026
  2. Study start2 Jan 2026
  3. Primary completionDec 2026 (estimated)
  4. Study completionDec 2026 (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 4
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Model description
This is a prospective, single-center, single-arm study.
Masking
None (open label)
Enrolment
40 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07315828
Sponsor's protocol ID
2025-146
Other IDs
2025-146
Acronym
ICG-GCTB
Status last verified
Jan 2026
First submitted
20 Dec 2025
Last updated
5 Jan 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Nicoli F, Saleh DB, Baljer B, Chan CD, Beckingsale T, Ghosh KM, Ragbir M, Rankin KS. Intraoperative Near-infrared Fluorescence (NIR) Imaging With Indocyanine Green (ICG) Can Identify Bone and Soft Tissue Sarcomas Which May Provide Guidance for Oncological Resection. Ann Surg. 2021 Feb 1;273(2):e63-e68. doi: 10.1097/SLA.0000000000003857.

    PubMed 32224746
  • Wang H, Ji T, Qu H, Yan T, Li D, Yang R, Tang X, Guo W. Indocyanine green fluorescence imaging may detect tumour residuals during surgery for bone and soft-tissue tumours. Bone Joint J. 2023 May 1;105-B(5):551-558. doi: 10.1302/0301-620X.105B5.BJJ-2022-0803.R1.

    PubMed 37121591
  • Huang H, He S, Wei R, Zhu X, Deng Z, Wang Y, Guo L, Lei J, Cai L, Xie Y. Near-infrared (NIR) imaging with indocyanine green (ICG) may assist in intraoperative decision making and improving surgical margin in bone and soft tissue tumor surgery. J Surg Oncol. 2023 Sep;128(4):612-627. doi: 10.1002/jso.27306. Epub 2023 May 13.

    PubMed 37178368
  • Vinegoni C, Botnaru I, Aikawa E, Calfon MA, Iwamoto Y, Folco EJ, Ntziachristos V, Weissleder R, Libby P, Jaffer FA. Indocyanine green enables near-infrared fluorescence imaging of lipid-rich, inflamed atherosclerotic plaques. Sci Transl Med. 2011 May 25;3(84):84ra45. doi: 10.1126/scitranslmed.3001577.

    PubMed 21613624
  • Newton AD, Predina JD, Shin MH, Frenzel-Sulyok LG, Vollmer CM, Drebin JA, Singhal S, Lee MK 4th. Intraoperative Near-infrared Imaging Can Identify Neoplasms and Aid in Real-time Margin Assessment During Pancreatic Resection. Ann Surg. 2019 Jul;270(1):12-20. doi: 10.1097/SLA.0000000000003201.

    PubMed 31188797
  • Dip F, Boni L, Bouvet M, Carus T, Diana M, Falco J, Gurtner GC, Ishizawa T, Kokudo N, Lo Menzo E, Low PS, Masia J, Muehrcke D, Papay FA, Pulitano C, Schneider-Koraith S, Sherwinter D, Spinoglio G, Stassen L, Urano Y, Vahrmeijer A, Vibert E, Warram J, Wexner SD, White K, Rosenthal RJ. Consensus Conference Statement on the General Use of Near-infrared Fluorescence Imaging and Indocyanine Green Guided Surgery: Results of a Modified Delphi Study. Ann Surg. 2022 Apr 1;275(4):685-691. doi: 10.1097/SLA.0000000000004412.

    PubMed 33214476
  • Machak GN, Snetkov AI. The impact of curettage technique on local control in giant cell tumour of bone. Int Orthop. 2021 Mar;45(3):779-789. doi: 10.1007/s00264-020-04860-y. Epub 2020 Oct 22.

    PubMed 33094400
  • Aoude A, Nikomarov D, Perera JR, Ibe IK, Griffin AM, Tsoi KM, Ferguson PC, Wunder JS. Giant cell tumour of bone. Bone Joint J. 2023 May 1;105-B(5):559-567. doi: 10.1302/0301-620X.105B5.BJJ-2022-1231.R1.

    PubMed 37121582
  • Basu Mallick A, Chawla SP. Giant Cell Tumor of Bone: An Update. Curr Oncol Rep. 2021 Mar 22;23(5):51. doi: 10.1007/s11912-021-01047-5.

    PubMed 33754215
  • Werner M. Giant cell tumour of bone: morphological, biological and histogenetical aspects. Int Orthop. 2006 Dec;30(6):484-9. doi: 10.1007/s00264-006-0215-7. Epub 2006 Sep 30.

    PubMed 17013643

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Indocyanine Green in people with Giant Cell Tumor of Bone, run by Shanghai Jiao Tong University Affiliated Sixth People's Hospital 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 2 inclusion and 3 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: looking for participants now, as of the sponsor's last update on 5 Jan 2026. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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

Contact Qingcheng Yang, Prof. (+86 21 6431 9181, tjyqc@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Diagnostic Accuracy of ICG Fluorescence Imaging (Sensitivity, Specificity, PPV, NPV) (time frame: From the time of surgery until the final pathology report is available, assessed up to 1 week post-operatively.). 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 NCT07315828, 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 5 Jan 2026.

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