Technetium tc 99m sulfur colloid
As of the edition of 20 October 2026, Technetium tc 99m sulfur colloid is a drug: marketed, first approved in 1982 (US); no US protection is listed.
Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.
The drug
- Status
- Marketed; latest approval 1982
- Kind
- Unknown
- Brand name
- An-Sulfur Colloid
- First approved
- 1 January 1982 (US)
- Approvals on record
- 6 in 1 region
- Holder of the most recent approval
- Byk-Mallinckrodt CIL; 4 holders in all
- Registered trials
- 9, 2 stopped early
- Disease areas
- Cancer; Skin and connective tissue; Digestive system; Heart and blood vessels; Mouth and teeth; Urinary and reproductive
US protection
No US protection is listed.
The FDA registers list no drug-substance patent or exclusivity that counts for this drug.
This is the US only.
Registered trials
| Phase | Trials | Completed | Active | Stopped early |
|---|---|---|---|---|
| Phase not stated | 2 | 1 | 0 | 1 |
| Phase 1 | 2 | 0 | 1 | 1 |
| Phase 2 | 4 | 2 | 1 | 0 |
| Phase 3 | 1 | 1 | 0 | 0 |
| All trials | 9 |
Who has held its approvals
| Company | Role | Years |
|---|---|---|
| Bracco Diagnostics | Acquired holder | 2003 to now |
| SUN Pharmaceutical Industries | Acquired holder | 2020 to now |
| Bristol Myers Squibb | Earlier holder | |
| Byk-Mallinckrodt CIL | Later holder | |
| GE Healthcare | Later holder |