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RSC-1255 Dose Escalation

Phase 1

Advanced Malignant Solid Neoplasm | Small molecule | Oncology |cbdMD, Inc.|Last Updated: Jun 23, 2026

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment134

FDA Designations

No designations recorded

Clinical trial landscape

RSC-1255 Dose Escalation · 1 trial · 6 indications

Phase 1 1
NCT04678648A Trial of RSC-1255 for Treatment of Patients With Advanced MalignanciesAdvanced Malignant Solid Neoplasm
RECRUITING134 Analytics
PHASE1RECRUITING
A Trial of RSC-1255 for Treatment of Patients With Advanced Malignancies
Advanced Malignant Solid NeoplasmUnlock trial analytics

Study Endpoints

Primary Endpoints

Maximum Tolerated Dose (MTD) for RSC-1255 as monotherapy
Approximately 30 months

The number and type of dose-limiting toxicities (DLTs) as defined in the protocol that occur during the first 21 days of treatment and maximum grade of all treatment-related events using CTCAE V5.0 will be used to identify a safe and tolerable dose.

Recommended Phase 2 Dose (RP2D) for RSC-1255 as monotherapy
Approximately 12 months

The number and type of DLTs as defined in the protocol that occur during the first 21 days of treatment and maximum grade of all treatment-related adverse events using CTCAE 5.0 will be used to identify a safe and tolerable dose.

Secondary Endpoints

Adverse event profile of RSC-1255
Approximately 24 months
Overall Survival (OS)
Approximately 24 months
Disease Progression
Approximately 24 months
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
RSC-1255 TreatmentEXPERIMENTALSingle Arm Study. All study participants receive RSC-1255.

Interventions

NameTypeDescription
RSC-1255 Dose EscalationDRUGPhase 1a will enroll 40-80 participants to identify the dose limiting toxicity (DLT), recommended Phase 1b dose, and the safety and tolerability of RSC-1255. RSC-1255 is administered orally twice daily, with and without food. Each cycle is 21 days.
RSC-1255 Dose ExpansionDRUGPhase 1b will enroll 48-94 participants to further characterize the safety, pharmacology, and clinical efficacy of RSC-1255. RSC-1255 is administered orally twice daily alone or in combination with continuous hydroxychloroquine, with food. Each cycle is 21 days.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites3

Inclusion Criteria (Key Factors): 1. Has pathologically confirmed advanced or metastatic malignancy characterized by one or more of the following: * Participant is intolerant of existing therapy(ies) known to provide clinical benefit for their condition * Malignancy is refractory to existing...

Countries:United States
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Frequently asked questions about RSC-1255 Dose Escalation

What is RSC-1255 used for?

RSC-1255 is an investigational small molecule being studied for the treatment of advanced malignant solid neoplasms, including RAS-mutated cancers such as lung cancer, colon cancer, glioblastoma, and pancreatic cancer. It is currently in Phase 1 clinical development and has not been approved by the FDA.

What does RSC-1255 target?

RSC-1255 is a small molecule being studied in patients with RAS mutations, indicating it targets the RAS signaling pathway. The drug is being evaluated in a biomarker-selected trial for advanced solid tumors with RAS mutations, including lung, colon, and pancreatic cancers.

Who is developing RSC-1255?

RSC-1255 is being developed by cbdMD, Inc., a company traded on the NYSE American under the ticker YCBD. The drug is currently in Phase 1 clinical trials for advanced malignant solid neoplasms.

What phase is RSC-1255 in?

RSC-1255 is in Phase 1 clinical development. It is an investigational drug and has not been approved by the FDA. The ongoing Phase 1 trial is recruiting patients with advanced malignancies.

What clinical trials is RSC-1255 in?

RSC-1255 is being studied in a Phase 1 clinical trial with the identifier NCT04678648, titled 'A Trial of RSC-1255 for Treatment of Patients With Advanced Malignancies.' The trial is recruiting in the United States and has a planned enrollment of 134 participants.