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Pegylated Liposomal Doxorubicin+ SL-172154

Phase 1

Platinum-resistant Ovarian Cancer | Small molecule | Oncology |Shattuck Labs, Inc.|Last Updated: Dec 23, 2025

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment86

FDA Designations

No designations recorded

Clinical trial landscape

Pegylated Liposomal Doxorubicin+ SL-172154 · 1 trial · 7 indications

Phase 1 1
NCT05483933Phase 1b Study of SL-172154 Administered With Combination Agent(s) in Subjects With Ovarian CancersPlatinum-resistant Ovarian Cancer
COMPLETED86 Analytics
PHASE1COMPLETED
Phase 1b Study of SL-172154 Administered With Combination Agent(s) in Subjects With Ovarian Cancers
Platinum-resistant Ovarian CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Evaluate Safety and Tolerability of SL-172154 When Administered With PLD or Mirvetixumab
From Day 1 to 30 days after last dose of SL-172154, PLD or Mirvetixumab, an average of approximately 6 months

Number of participants with treatment emergent adverse events from dose escalation and expansion cohorts

Establish the Recommended Phase 2 Dose (RP2D) for SL-172154 When Administered With PLD or Mirvetixumab
From Day 1 to 30 days after last dose of SL-172154, PLD or Mirvetixumab, an average of approximately 6 months

Based on review of all data, including safety, tolerability, PK, antitumor activity, and PD effects"

Secondary Endpoints

To Assess Preliminary Evidence of Anti-tumor Activity of SL-172154 When Administered With PLD or Mirvetixumab
approximately 24 months
Immunogenicity to SL-172154
approximately 24 months
Immunogenicity to MIRV
approximately 24 months
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Pegylated Liposomal Doxorubicin + SL-172154 (SIRPα-Fc-CD40L)EXPERIMENTALPegylated Liposomal Doxorubicin (PLD) will be administered via intravenous administration + SL-172154 (SIRPα-Fc-CD40L) will be administered via intravenous administration.
Mirvetuximab + SL-172154 (SIRPα-Fc-CD40L)EXPERIMENTALMirvetuximab (MIRV) will be administered via intravenous administration + SL-172154 (SIRPα-Fc-CD40L) will be administered via intravenous administration

Interventions

NameTypeDescription
Pegylated Liposomal Doxorubicin + SL-172154DRUGThe investigational product, SL-172154, is a novel fusion protein consisting of human SIRPα and CD40L (SIRPα -Fc-CD40L) linked via a human Fc.
Mirvetuximab + SL-172154DRUGThe investigational product, SL-172154, is a novel fusion protein consisting of human SIRPα and CD40L (SIRPα -Fc-CD40L) linked via a human Fc.
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Eligibility Criteria

Age Range18 Years to N/A
SexFEMALE
Healthy VolunteersNo
Study Sites21

Inclusion Criteria: 1. Subject has voluntarily agreed to participate by giving written informed consent in accordance with ICH/GCP guidelines and applicable local regulations. 2. Age ≥18 years 3. \[PLD Cohort\] Subject has a histologically confirmed diagnosis of high grade epithelial ovarian cancer...

Countries:United StatesCanadaSpainUnited Kingdom
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Frequently asked questions about Pegylated Liposomal Doxorubicin+ SL-172154

What is Pegylated Liposomal Doxorubicin+ SL-172154 used for?

Pegylated Liposomal Doxorubicin+ SL-172154 is being studied for the treatment of platinum-resistant ovarian cancer, including fallopian tube cancer and primary peritoneal carcinoma. It is an investigational combination therapy evaluated in a Phase 1 clinical trial for patients with these conditions.

Who makes Pegylated Liposomal Doxorubicin+ SL-172154?

Pegylated Liposomal Doxorubicin+ SL-172154 is being developed by Shattuck Labs, Inc., a biopharmaceutical company traded on the NASDAQ under the ticker symbol STTK. The company is conducting clinical research on this combination therapy for platinum-resistant ovarian cancer.

What phase is Pegylated Liposomal Doxorubicin+ SL-172154 in?

Pegylated Liposomal Doxorubicin+ SL-172154 is in Phase 1 clinical development. The Phase 1b study has been completed, and the therapy remains investigational, meaning it has not been approved by regulatory authorities and is still undergoing clinical evaluation.

What clinical trials is Pegylated Liposomal Doxorubicin+ SL-172154 in?

Pegylated Liposomal Doxorubicin+ SL-172154 was studied in clinical trial NCT05483933, a Phase 1b study of SL-172154 administered with combination agents in subjects with ovarian cancers. The trial enrolled 86 female participants aged 18 years and older and was conducted in the United States, Canada, Spain, and the United Kingdom.

Is Pegylated Liposomal Doxorubicin+ SL-172154 the same as SL-172154?

Pegylated Liposomal Doxorubicin+ SL-172154 is a combination therapy that includes SL-172154, an investigational agent developed by Shattuck Labs. The clinical trial NCT05483933 specifically studied SL-172154 administered with combination agents, including pegylated liposomal doxorubicin, in patients with platinum-resistant ovarian cancer.