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SRK-181

Phase 1

Cancer | Monoclonal antibody | Oncology |Scholar Rock Holding Corporation|Last Updated: Apr 29, 2025

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment112

FDA Designations

No designations recorded

Clinical trial landscape

SRK-181 · 1 trial · 1 indication

Phase 1 1
NCT04291079SRK-181 Alone or in Combination With Anti-PD-(L)1 Antibody Therapy in Patients With Locally Advanced or Metastatic Solid Tumors (DRAGON)Cancer
COMPLETED112 Analytics
PHASE1COMPLETED
SRK-181 Alone or in Combination With Anti-PD-(L)1 Antibody Therapy in Patients With Locally Advanced or Metastatic Solid Tumors (DRAGON)
CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Safety and tolerability of single agent SRK-181
The first 21 days of study treatment

Dose limiting toxicities (DLTs), as assessed by the Investigator, but not including toxicities clearly related to disease progression or intercurrent illness

Safety and tolerability of SRK-181 in combination with anti-PD-(L)1 antibody therapy
The first 21 days of study treatment

Dose limiting toxicities (DLTs), as assessed by the Investigator, but not including toxicities clearly related to disease progression or intercurrent illness

Secondary Endpoints

PK of SRK-181 alone and in combination with anti-PD-(L)1 antibody therapy
Cycle 1 and Cycle 3 (each cycle is 21 days)
Anti-tumor activity of SRK-181, alone or in combination wit anti-PD-(L)1 antibody therapy as potential indicators of clinical response
6 months
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part A1: Dose EscalationEXPERIMENTALPart A1 determined the maximum tolerated dose (MTD) or maximum administered dose (MAD) of SRK-181 as a single agent and the recommended Phase 2 dose (RP2D) of SRK-181 as a single-agent.
Part A2: Dose EscalationEXPERIMENTALPart A2 determined the MTD or MAD of SRK-181 in combination with anti-PD-(L)1 antibody therapy and the RP2D of SRK-181 in combination with anti-PD-(L)1 antibody therapy for use in Part B.
Part B: Dose ExpansionEXPERIMENTALIn Part B, parallel cohorts of patients with Non-Small Cell Lung Cancer (NSCLC), Urothelial Carcinoma (UC), Cutaneous Melanoma (MEL), Clear Cell Renal Cell Carcinoma (ccRCC), Head and Neck Squamous Cell Carcinoma (HNSCC), or other advanced or metastatic solid tumor type that is not NSCLC, UC, MEL, or ccRCC were enrolled to confirm the tolerability of the RP2D of SRK-181 (determined in Part A2) and to evaluate the anti-tumor activity of SRK-181 in combination with an anti-PD-(L)1 antibody therapy.
Long Term Extension Phase (LTEP)EXPERIMENTALPatients may continue treatment in a LTEP: * Part A1: Patients may continue treatment with SRK-181 as a single agent at the RP2D in the LTEP following 3 cycles of treatment with SRK-181 as a single agent in Part A1. * Part A2: Patients may continue treatment with SRK-181 at the RP2D in combination with anti-PD-(L)1 antibody therapy in the LTEP following 3 cycles of treatment with SRK-181 in combination with anti-PD-(L)1 antibody therapy in Part A2. * Part B: Patients may continue treatment with SRK-181 in combination with anti-PD-(L)1 antibody therapy following 9 cycles of treatment with SRK-181 in combination with anti-PD-(L)1 antibody therapy in Part B

Interventions

NameTypeDescription
SRK-181BIOLOGICALanti-latent TGFβ1 monoclonal antibody
anti-PD-(L)1 antibody therapyBIOLOGICALapproved anti-PD-(L)1 antibody therapy for each tumor type
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites22

Key Inclusion Criteria: * Patient has a histologically documented solid tumor that is metastatic or locally advanced, for which SoC therapy does not exist, has failed in the patient, or is not tolerated by the patient, or for which the patient has been assessed by the Investigator as not being a su...

Countries:United StatesSouth Korea
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Frequently asked questions about SRK-181

What is SRK-181 used for?

SRK-181 is an investigational monoclonal antibody being developed for the treatment of cancer. It is being studied in patients with locally advanced or metastatic solid tumors, as part of the DRAGON clinical trial.

What does SRK-181 target?

SRK-181 is a monoclonal antibody designed to target a specific protein involved in cancer progression. The exact molecular target is not disclosed in the available information, but it is being evaluated for its potential to enhance anti-tumor immune responses.

Who makes SRK-181?

SRK-181 is being developed by Scholar Rock Holding Corporation, a biopharmaceutical company traded on the NASDAQ under the ticker symbol SRRK. The company is focused on developing innovative therapies for serious diseases.

What phase is SRK-181 in?

SRK-181 is in Phase 1 clinical development. It is an investigational drug and has not yet been approved by regulatory authorities. The Phase 1 trial has been completed, and the drug is no longer in active clinical testing.

What clinical trials is SRK-181 in?

SRK-181 has been studied in one clinical trial, identified as NCT04291079, titled 'SRK-181 Alone or in Combination With Anti-PD-(L)1 Antibody Therapy in Patients With Locally Advanced or Metastatic Solid Tumors (DRAGON)'. This Phase 1 trial was completed and enrolled 112 participants.

Is SRK-181 the same as DRAGON?

No, SRK-181 is not the same as DRAGON. DRAGON is the name of the clinical trial studying SRK-181, not an alternative name for the drug itself. The trial evaluates SRK-181 alone or in combination with anti-PD-(L)1 antibody therapy.