Evidence map›Paper›PMID 39800375›Full record

ArticleJournal for immunotherapy of cancer2025

First-in-human phase I trial of the bispecific CD47 inhibitor and CD40 agonist Fc-fusion protein, SL-172154 in patients with platinum-resistant ovarian cancer.

Nehal J Lakhani, Daphne Stewart, Debra L Richardson, Lauren E Dockery, Linda Van Le, Justin Call, Fatima Rangwala, Guanfang Wang, Bo Ma, Simon Metenou and 4 more

Registry-linked trialAbstract readClinical Trial, Phase I
In one paragraph

Article in Journal for immunotherapy of cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04406623 (Phase 1 Dose Escalation Study of the Agonist Redirected Checkpoint, SL-172154), which is not on this map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04406623 phase1completednot on this map

Phase 1 Dose Escalation Study of the Agonist Redirected Checkpoint, SL-172154 (SIRPα-Fc-CD40L) Administered Intravenously in Subjects With Ovarian Cancer

TypeinterventionalSponsorShattuck Labs, Inc.Ran2020 to 2023Enrolled27ConditionsOvarian Cancer, Fallopian Tube Cancer, Primary Peritoneal CarcinomaArmsSL-172154
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Nehal J LakhaniClinical Research, START Midwest, Grand Rapids, Michigan, USA.ORCID http://orcid.org/0009-0005-6327-0176
Daphne StewartDepartment of Medical Oncology and Therapeutics Research, City of Hope Comprehensive Cancer Center, Duarte, California, USA.
Debra L RichardsonDivision of Gynecologic Oncology, Stephenson Cancer Center and Sarah Cannon Research Institute/University of Oklahoma, Oklahoma City, Oklahoma, USA.ORCID http://orcid.org/0000-0002-3992-8610
Lauren E DockeryDivision of Gynecologic Oncology, Department of Obstetrics and Gynecology, The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA.
Linda Van LeDivision of Gynecologic Oncology, Department of Obstetrics and Gynecology, The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA.
Justin CallMedical Oncology, START Mountain Region, West Valley City, Utah, USA.
Fatima RangwalaClinical Research, Shattuck Labs R&D Office, Durham, North Carolina, USA.
Guanfang WangBiometrics, Shattuck Labs R&D Office, Durham, North Carolina, USA.
Bo MaBiometrics, Shattuck Labs R&D Office, Durham, North Carolina, USA.
Simon MetenouTranslational Medicine, Shattuck Labs R&D Office, Durham, North Carolina, USA.
Jade HuguetTranslational and Clinical Pharmacology, Certara, Toronto, Ontario, Canada.
Elliot OffmanTranslational and Clinical Pharmacology, Certara, Toronto, Ontario, Canada.
Lini PanditeClinical Research, Shattuck Labs R&D Office, Durham, North Carolina, USA lpandite@shattucklabs.com.ORCID http://orcid.org/0009-0005-9194-6348
Erika HamiltonMedical Oncology, Sarah Cannon Research Institute, Nashville, Tennessee, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSL-172154 is a hexameric fusion protein adjoining the extracellular domain of SIRPα to the extracellular domain of CD40L via an inert IgG

methodsSL-172154 was administered intravenously at 0.1, 0.3, 1.0, 3.0, and 10.0 mg/kg. Dose escalation followed a modified toxicity probability interval-2 design. Objectives included evaluation of safety, dose-limiting toxicity, recommended phase II dose, pharmacokinetic (PK) and pharmacodynamic (PD) parameters, and antitumor activity.

results27 patients (median age 66 years (range, 33-85); median of 4 prior systemic therapies (range, 2-9)) with ovarian (70%), fallopian tube (15%), or primary peritoneal (15%) cancer received SL-172154. Treatment-emergent adverse events (TEAEs) were reported for 27 patients (100%), with 24 (88.9%) having a drug-related TEAE and infusion-related reactions being the most common. 12 patients (44.4%) had grade 3/4 TEAEs, and half of these patients (22.2%) had a drug-related grade 3/4 TEAE. There were no fatal adverse events, and no TEAEs led to drug discontinuation. SL-172154 C

conclusionsSL-172154 was tolerable as monotherapy and induced, dose-dependent, and cyclical immune cell activation, increases in multiple serum cytokines, and trafficking of CD40-positive B cells and monocytes following each infusion. The safety, PK, and PD activity support 3.0 mg/kg as a safe and pharmacologically active dose. TRIAL REGISTRATION NUMBER: NCT04406623.

Indexed as

CD40 AntigensCD47 AntigenOvarian NeoplasmsRecombinant Fusion ProteinsAdultAgedAged, 80 and overDrug Resistance, NeoplasmFemaleHumansImmunoglobulin Fc FragmentsMiddle AgedCD40 AntigensCD47 AntigenCD47 protein, humanImmunoglobulin Fc FragmentsRecombinant Fusion ProteinsImmunotherapyPharmacodynamics - PDPharmacokinetics - PK

Identifiers

PMID39800375
PMCPMC11749819

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.