CS-121 clinical trials
Also written CS-121.
How each study uses CS-121 is sorted by a rule, right about nine times in ten. Readers can ask us to read every study one by one.Ask us to read each study
Get an email when these change. Save the CS-121 studies recruiting or about to start — once a week, free: studies that open, close, add sites or post results.
See an example email
Example · made-up studies
Breast cancer · Recruiting: 2 came in, 3 changed
What changed in your saved searches, Oct 31 – Nov 6:
A study of drug A after surgery for early breast cancer
Came in · now Recruiting
Drug B with hormone therapy in advanced breast cancer
Changed
· Sites: 4 added, including Seoul and Busan
· Enrollment: 300 → 450 participants
Exercise during chemotherapy
Now Active, not recruiting
One email a week for all your saved searches. Stop any time.
Approvals
The first approval found in each region, with its record
- United States
- Not in FDA's approval records
- European Union
- Not in EMA's list of EU-wide authorisations
From FDA's Drugs@FDA and Purple Book (through openFDA) and the European Medicines Agency, files of Sept 2026 and 27 Oct 2026. National approvals in Europe and other countries are not included. How this is worked out
How studies write it
Studies that test it under each name
Development codes
- CS-121
- 3
Studies by the year they started
3 studies that test it; most in 2026 (2)
| Year | Studies |
|---|---|
| 2025 | 1 |
| 2026 | 2 |
By phase
A phase 1/2 study counts in both.
- Early Phase 1
- 3
What it is tested for
Each study’s main condition, where its own words name it, so a study counts once.
Who runs them
Industry 2 · Other 1
CorrectSequence Therapeutics Co., Ltd (2) · Shanghai Jiao Tong University School of Medicine (1)
Coming up
From the study records. Dates are the sponsors’ own estimates and often move.
Reaching primary completion within a year · 2
Studies that test CS-121.
- Dec 2026CS-121 APOC3 Base Editing in FCSEarly Phase 1 · CorrectSequence Therapeutics Co., Ltd
- Oct 2027CS-121 APOC3 Base Editing in Children and Adolescents With HyperchylomicronemiaEarly Phase 1 · Shanghai Jiao Tong University School of Medicine
Studies
Open first, then newest update. How each study uses CS-121 is read from its arms, and is right about nine times in ten. Ask us to read each study. These are the studies that list it as an intervention; a search of ClinicalTrials.gov also finds studies that mention it only in a description, such as earlier treatment.
Testing it · 3
- CS-121 APOC3 Base Editing in Severe HypertriglyceridemiaNot yet recruitingEarly Phase 1CorrectSequence Therapeutics Co., LtdNCT07657780Written as CS-121
- CS-121 APOC3 Base Editing in FCSRecruitingEarly Phase 1CorrectSequence Therapeutics Co., LtdNCT07176923Written as CS-121
- CS-121 APOC3 Base Editing in Children and Adolescents With HyperchylomicronemiaRecruitingEarly Phase 1Shanghai Jiao Tong University School of MedicineNCT07371767Written as CS-121