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Clinical trial · no report yet · Phase 2

ABBY

ABemacicliB or Abemaciclib and HydroxYchloroquine to Target Minimal Residual Disease in Breast Cancer

We haven't built a report for this trial yet. This page shows the registry record and the public commentary we found that names the trial. A report reads that commentary and sets out what clinicians said about the trial, each point linked to its source. How reports are made.

Preliminary discovery

Commentary in our index that names this trial so far

Podcasts, YouTube videos and X posts we have indexed. A report screens them, searches for more and cites what clinicians said when it is built, so final coverage is set at build.

ChannelFound
Bluesky threads27
YouTube1
X threads1

The trial

ClinicalTrials.gov
Official title
A Phase II Pilot Trial of ABemacicliB or Abemaciclib and HydroxYchloroquine to Target Minimal Residual Disease in Breast Cancer Patients ("ABBY")
Phase
Phase 2
Status
Recruiting
Conditions
Breast Cancer
Interventions
Abemaciclib; Hydroxychloroquine
Arms
  • A (Abema) · Experimental
  • B (Abema + HCQ) · Experimental
Enrollment
44 (estimated)
Primary outcomes
  • Incidence of treatment-emergent adverse events during cycle 1 of the safety cohort (safety of combination HCQ + Abema)
  • Change in bone marrow DTC number evaluated by DTC-IHC assay after 6 cycles of therapy compared to baseline (Efficacy of Abema +/- HCQ in eliminating bone marrow DTCs)
Sponsor
Abramson Cancer Center at Penn Medicine
Start
Nov 1, 2021
Primary completion
Dec 2027 (estimated)
Results posted
No
Registry record
NCT04523857 · updated May 26, 2026