TheraRadar
Data updated: May 26, 2026

TECHNETIUM TC-99M SULFUR COLLOID KIT

Oncology Approved 2023-11-09

Technetium Tc 99m Sulfur Colloid is a radioactive diagnostic agent used for various imaging and functional studies. In adults, it is indicated for the localization of lymph nodes draining primary tumors in patients with breast cancer or malignant melanoma (using a hand-held gamma counter) and for evaluating the patency of peritoneo-venous (LeVeen) shunts. In both adult and pediatric patients, it is indicated for imaging the reticuloendothelial system (liver, spleen, and bone marrow) and for gastrointestinal studies, including esophageal transit, gastroesophageal reflux, and the detection of pulmonary aspiration of gastric contents.

Source: FDA Label • JUBILANT

How TECHNETIUM TC-99M SULFUR COLLOID KIT Works

Technetium Tc 99m decays by isomeric transition, emitting a gamma photon that is detectable for diagnostic imaging. The mechanism of action depends on the route of administration: * **Subcutaneous:** The colloid enters lymphatic capillaries and is transported to regional lymph nodes. * **Intraperitoneal:** The agent mixes with peritoneal fluid; its rate of clearance into systemic circulation is used to assess the patency of peritoneo-venous shunts. * **Intravenous:** The particles are phagocytized by the reticuloendothelial system (RES), allowing for the visualization of RES-rich structures such as the liver, spleen, and bone marrow. * **Oral:** The agent is not absorbed by the gastrointestinal tract, allowing for the scintigraphic evaluation of esophageal transit, gastroesophageal reflux, and pulmonary aspiration.

Source: FDA Label
1
Indication
--
Phase 3 Trials
2
Years on Market

Details

Status
Prescription
First Approved
2023-11-09
Routes
INJECTION, ORAL
Dosage Forms
SOLUTION

Companies

TECHNETIUM TC-99M SULFUR COLLOID KIT Approval History

2024
2025
2026
Original
New Indication
New Form
Label Update
1 FDA actions from 2023 to 2023
Nov 2023 ORIGINAL
Update

What TECHNETIUM TC-99M SULFUR COLLOID KIT Treats

4 indications

TECHNETIUM TC-99M SULFUR COLLOID KIT is approved for 4 conditions since its original approval in 2023. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Breast Cancer
  • Melanoma
  • Gastroesophageal Reflux
  • Pulmonary Aspiration
Source: FDA Label

TECHNETIUM TC-99M SULFUR COLLOID KIT Competitive Set

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What's emerging in TECHNETIUM TC-99M SULFUR COLLOID KIT's indications

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Phase 3 candidates targeting molecules with no FDA-approved drug, in indications TECHNETIUM TC-99M SULFUR COLLOID KIT treats. First-in-class if their pivotal trials read out positive.

Drugs Similar to TECHNETIUM TC-99M SULFUR COLLOID KIT

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AN-SULFUR COLLOID
TECHNETIUM TC-99M SULFUR COLLOID KIT
4 shared
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Shared indications:
Breast CancerMelanomaGastroesophageal Reflux +1 more
AFINITOR
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Active Pipeline

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Key Completed Trials

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

TECHNETIUM TC-99M SULFUR COLLOID KIT FDA Label Details

Indications & Usage

TECHNETIUM TC-99M SULFUR COLLOID KIT is indicated for the treatment of Breast Cancer; Melanoma; Gastroesophageal Reflux; Pulmonary Aspiration.

Looking for the branded version?

AN-SULFUR COLLOID

Full clinical data, patents, trials, and competitive landscape for technetium tc-99m sulfur colloid kit.

See AN-SULFUR COLLOID

Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.