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Samuraciclib

Phase 2

Metastatic Breast Cancer | Small molecule | Oncology |cbdMD, Inc.|Last Updated: Dec 26, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLEDBiomarker
Total Trials1
Total Enrollment60

FDA Designations

No designations recorded

Clinical trial landscape

Samuraciclib · 1 trial · 3 indications

Phase 2 1
NCT05963984A Study of Samuraciclib in Combination With Fulvestrant in Metastatic or Locally Advanced Breast Cancer in Adult ParticipantsMetastatic Breast Cancer
COMPLETED60 Analytics
PHASE2COMPLETED
A Study of Samuraciclib in Combination With Fulvestrant in Metastatic or Locally Advanced Breast Cancer in Adult Participants
Metastatic Breast CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Clinical Benefit Response (CBR)
From randomization until Week 24

CBR is defined as the overall complete response (CR), partial response (PR), or stable disease (SD) ≥ 24 weeks according to RECIST version 1.1 recorded from randomization until disease progression, or death due to any cause.

Secondary Endpoints

Objective Response Rate (ORR)
Time from the date of first dose of study intervention until the first documentation of disease progression, death, withdrawal of consent, or start of new anticancer therapy (assessed up to week 48)
Duration of Response (DOR)
Time from the date of first dose of study intervention until the first documentation of disease progression, death, withdrawal of consent, or start of new anticancer therapy (assessed up to week 48)
Progression Free Survival (PFS)
Time from the date of first dose of study intervention until the first documentation of disease progression, death, withdrawal of consent, or start of new anticancer therapy (assessed up to week 48)
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arm AEXPERIMENTALParticipants will receive 360 mg of samuraciclib on cycles of 28 days (Cycle 1 to 6), 56 days (Cycle 7 to 9) and up to 84 days (Cycles 10 onwards in combination with fulvestrant administered monthly, plus an additional dose at Cycle 1 Day 15.
Arm BEXPERIMENTALParticipants will receive 240 mg of samuraciclib on cycles of 28 days (Cycle 1 to 6), 56 days (Cycle 7 to 9) and up to 84 days (Cycles 10 onwards in combination with fulvestrant administered monthly, plus an additional dose at Cycle 1 Day 15.
Arm CEXPERIMENTALParticipants will receive fulvestrant administered monthly, plus additional dose at Cycle 1 Day 15.

Interventions

NameTypeDescription
SamuraciclibDRUGSamuraciclib tablet by mouth once a day
FulvestrantDRUGInjection administered monthly (i.e., every 4 weeks), plus additional dose at Cycle 1 Day 15
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites32

Inclusion Criteria: * Histologically confirmed diagnosis of ER-positive, HER2-negative locally advanced or metastatic breast cancer. * Documented objective disease progression while on or within 6 months after the end of the most recent therapy. * Received prior AI in combination with a CDK4/6i as ...

Countries:United StatesHungaryMexicoSpainTurkey (Türkiye)
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Competitive Landscape -Breast Cancer 402 trials (matched to "Metastatic Breast Cancer")

Top 20 of 92 competitors

CompanyTickerTrialsLead PhaseDrugs
AstraZeneca PLCAZN47PHASE3Fulvestrant, Capivasertib
Merck & Co., Inc.MRK12PHASE3Pembrolizumab, Paclitaxel, Doxorubicin, Epirubicin, Cyclophosphamide
Eli Lilly and CompanyLLY27PHASE3Abemaciclib, Standard Adjuvant Endocrine Therapy
BioNTech SE Sponsored ADRBNTX7PHASE3DB-1303/BNT323, T-DM1
Gilead Sciences, Inc.GILD13PHASE3Sacituzumab Govitecan-hziy, Eribulin, Capecitabine Product, Gemcitabine, Vinorelbine
Novartis AG Sponsored ADRNVS30PHASE3Ribociclib
Pfizer Inc.PFE34PHASE3ARV-471, Fulvestrant
BeOne Medicines Ltd. Sponsored ADRONC5PHASE3BGB-43395, Letrozole, Abemaciclib, Palbociclib, Ribociclib
Olema Pharmaceuticals, Inc.OLMA5PHASE3Palazestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane
Jazz Pharmaceuticals Public Limited CompanyJAZZ3PHASE3Zanidatamab, Trastuzumab, Eribulin, Vinorelbine, Gemcitabine
Celcuity Inc.CELC3PHASE3Gedatolisib, Palbociclib, Fulvestrant, Alpelisib
Relay Therapeutics, Inc.RLAY2PHASE3Zovegalisib, Capivasertib, Fulvestrant
GSK plc Sponsored ADRGSK2PHASE3Niraparib
Greenwich LifeSciences, Inc.GLSI1PHASE3GLSI-100
Bristol-Myers Squibb CompanyBMY5PHASE2Iza-bren, Nab-paclitaxel, Paclitaxel, Capecitabine, Carboplatin
BriaCell Therapeutics CorpBCTX2PHASE3SV-BR-1-GM, Cyclophosphamide, Interferon infiltration of the inoculation site, Retifanlimab, Treatment of Physician's Choice
Incyte CorporationINCY4PHASE2Ruxolitinib, Capecitabine, Regorafenib
Natera, Inc.NTRA3PHASE2Discontinuation of the anti-HER2 maintenance therapy
Puma Biotechnology, Inc.PBYI3PHASE2Neratinib, Loperamide, Colesevelam
Atossa Therapeutics, Inc.ATOS1PHASE2endoxifen, goserelin
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Frequently asked questions about Samuraciclib

What is Samuraciclib used for?

Samuraciclib is an investigational small molecule being studied for the treatment of metastatic breast cancer and locally advanced breast cancer. It is currently in Phase 2 clinical development and has not been approved by regulatory authorities.

Who is developing Samuraciclib?

Samuraciclib is being developed by cbdMD, Inc., a company traded on the stock exchange under the ticker symbol YCBD. The company is conducting clinical research to evaluate the drug's safety and efficacy in breast cancer patients.

What phase is Samuraciclib in?

Samuraciclib is currently in Phase 2 clinical development. It is an investigational drug, meaning it has not yet received regulatory approval and is still being evaluated in clinical trials for the treatment of metastatic and locally advanced breast cancer.

What clinical trials is Samuraciclib in?

Samuraciclib has one completed Phase 2 clinical trial registered as NCT05963984. This study evaluated Samuraciclib in combination with fulvestrant in adult participants with metastatic or locally advanced breast cancer, enrolling 60 participants across the United States, Hungary, Mexico, Spain, and Turkey.

Is Samuraciclib the same as any other drug?

Samuraciclib is not known to have alternative names. It is a distinct investigational small molecule being studied for breast cancer, and no other names for this drug have been reported.