Clinical Trials

Multiple Phase 1 clinical trials sponsored by pharmaceutical entities, including Amgen and AbbVie, have evaluated Tapotoclax (AMG-176) as monotherapy and in combination with azacitidine or venetoclax. These studies assessed safety, tolerability, pharmacokinetics, and pharmacodynamics across various hematologic malignancies, including acute myeloid leukemia, higher-risk myelodysplastic syndrome, chronic myelomonocytic leukemia, non-Hodgkin's lymphoma, diffuse large B-cell lymphoma, and relapsed or refractory multiple myeloma. Notably, all recorded Phase 1 clinical trials for this compound currently hold a recruitment status of terminated.

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT02675452 TERMINATED
Relapsed or Refractory Multiple Myeloma; Relapsed or Refractory Acute Myeloid Leukemia
Amgen
2016-06-13 PHASE1
NCT05209152 TERMINATED
Higher Risk Myelodysplastic Syndrome; Chronic Myelomonocytic Leukemia
Amgen
2022-11-14 PHASE1
NCT03797261 TERMINATED
Acute Myeloid Leukemia; Non-Hodgkin's Lymphoma; Diffuse Large B-cell Lymphoma
AbbVie
2019-03-18 PHASE1

(data from https://clinicaltrials.gov, updated on 2025-07-09)

Check the Tapotoclax (AMG-176) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Compliance for Clinical Use

Mechanism and Biochemical Profile

Tapotoclax (AMG-176) selectively binds to myeloid cell leukemia 1 (MCL1) with a Ki of 0.13 nM, blocking its interaction with pro-apoptotic proteins and disrupting downstream anti-apoptotic survival biochemistry. This targeted disruption triggers mitochondrial-mediated apoptosis in dysregulated hematopoietic cells, providing the biological foundation for evaluating AMG-176 in clinical trials for hematologic malignancies such as acute myeloid leukemia, multiple myeloma, and myelodysplastic syndrome.

Appendix RUO and cGMP Quality Standards

Quality Dimension RUO (Research Use Only) cGMP (Current Good Manufacturing Practice)
Clinical Applicability Prohibited in human clinical trials or medical diagnostics. Mandatory for human clinical trials (Phase I–III) and therapies.
Regulatory Status Non-regulated grade; exempt from drug manufacturing laws. Legally enforced by health authorities (e.g., FDA, EMA, NMPA).
Facility Environment Unclassified analytical or research laboratories. Validated Cleanrooms (ISO Class 5–8) with continuous monitoring.
Quality Control Basic purity and activity testing. Rigorous safety release testing (Sterility, Endotoxin, Mycoplasma).
Process Validation Basic equipment calibration; no process validation required. Full qualification (IQ/OQ/PQ) and complete batch records.
Quality Assurance Vendor self-declared without required formal QMS. Mandatory QA/QC unit, Change Control, CAPA, and vendor audits.
Regulatory Impact High risk of IND rejection if used as a critical raw material. Required for IND/NDA filings, supported by Drug Master Files (DMF).

Footnotes

Regulatory Note: Governed by FDA (21 CFR Parts 210/211/312), EMA (EudraLex Vol 4), ICH Guidelines (E6/Q7/Q9/Q10), and compendial standards (USP <71>/<85>/<1043>).

Note: Technical data last updated: Sep 1, 2026.