RECRUITING

STC-15 as a Part of Combination Therapy With Toripalimab in Selected Advanced Cancers

Conditions

Metastatic Non-small Cell Lung Cancer Metastatic Melanoma Metastatic Endometrial Cancer Metastatic Head-and-neck Squamous-cell Carcinoma Solid Tumor STC-15 Toripalimab PD1 Checkpoint Combination

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Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

This early phase oncology trial will be conducted at various study centers to investigate the safety, tolerability, and antitumor activity of STC-15 (a METTL3 inhibitor) in combination with toripalimab (anti- programmed cell death 1 \[PD-1\]) in four different locally advanced unresectable or metastatic tumors such as indications: (1) in combination with toripalimab (anti- programmed cell death 1 \[PD-1\]) in locally advanced and unresectable or metastatic non-small cell lung cancer (NSCLC), (2) in combination with toripalimab in locally advanced unresectable or metastatic melanoma, (3) in combination with toripalimab in locally advanced unresectable or metastatic endometrial cancers, and (4) in combination with toripalimab in locally advanced or metastatic head and neck squamous cell carcinoma (HNSCC). This study comprises of 2 parts: a combination dose escalation part (Phase 1b) followed by an assessment of the combination treatment's antitumor activity (Phase 2). This study will be conducted in adult participants with advanced malignancies to characterize the safety, tolerability, PK, and clinical activity of STC-15 in combination with toripalimab.

Official Title

Open-label, Non-randomized, Multi-cohort, Phase 1b/2 Trial Investigating the Safety, Tolerability, and Antitumor Activity of STC-15 (a METTL3 Inhibitor) as a Part of Combination Therapy With Toripalimab in Participants With Selected Advanced Cancers

Quick Facts

Study Start:2025-05-05

Study Completion:2026-01-29

Study Type:Not specified

Phase:Not Applicable

Enrollment:Not specified

Status:RECRUITING

Study ID

NCT06975293

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:18 Years

Sexes Eligible for Study:ALL

Accepts Healthy Volunteers:No

Standard Ages:ADULT, OLDER_ADULT

Inclusion Criteria	Exclusion Criteria
* Estimated life expectancy ≥ 3 months. * ECOG performance status 0 or 1. * Measurable disease according to RECIST v1.1 as assessed by the local site investigator/radiology. * Documented radiologic assessment of progression on the prior therapy before study entry. * Have the ability to swallow, retain, and absorb oral medication. * NSCLC (when applicable): Participants with AGAs (actionable genetic alterations) must have received targeted therapy unless contraindicated. Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy. Participants must have disease progression on prior anti-PD-1/L1. * HNSCC (when applicable): Participants must have progressed on following prior lines: 2L or 3L recurrent/metastatic disease; regardless of PD-L1 score. Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy. * Endometrial (when applicable): Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy. Participants must have disease progression on prior anti-PD-1/L1 * Melanoma (when applicable): Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy. Participants must have disease progression on prior anti-PD-1/L1.	* Pregnant and lactating women. * Received prior systemic anticancer therapy including investigational agents within 4 weeks prior to first IMP administration. * Participants who have not recovered from all AEs due to previous therapies to Grade ≤ 1 or baseline, according to NCI-CTCAE v5.0. Exceptions include: alopecia, Grade ≤ 2 neuropathy, and endocrine-related AEs Grade ≤ 2 who are stable on treatment or hormone replacement. * Major surgery less than 4 weeks prior to the first IMP administration or participants who have not recovered from the side effects of the surgery. * History of (non-infectious) pneumonitis/interstitial lung disease that required steroids or the presence of ongoing pneumonitis/interstitial lung disease). * Clinically significant cardiovascular disease or condition. * Known active CNS metastases and/or leptomeningeal disease.

Inclusion Criteria

Exclusion Criteria

* Estimated life expectancy ≥ 3 months.
* ECOG performance status 0 or 1.
* Measurable disease according to RECIST v1.1 as assessed by the local site investigator/radiology.
* Documented radiologic assessment of progression on the prior therapy before study entry.
* Have the ability to swallow, retain, and absorb oral medication.
* NSCLC (when applicable): Participants with AGAs (actionable genetic alterations) must have received targeted therapy unless contraindicated. Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy. Participants must have disease progression on prior anti-PD-1/L1.
* HNSCC (when applicable): Participants must have progressed on following prior lines: 2L or 3L recurrent/metastatic disease; regardless of PD-L1 score. Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy.
* Endometrial (when applicable): Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy. Participants must have disease progression on prior anti-PD-1/L1
* Melanoma (when applicable): Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy. Participants must have disease progression on prior anti-PD-1/L1.

* Pregnant and lactating women.
* Received prior systemic anticancer therapy including investigational agents within 4 weeks prior to first IMP administration.
* Participants who have not recovered from all AEs due to previous therapies to Grade ≤ 1 or baseline, according to NCI-CTCAE v5.0. Exceptions include: alopecia, Grade ≤ 2 neuropathy, and endocrine-related AEs Grade ≤ 2 who are stable on treatment or hormone replacement.
* Major surgery less than 4 weeks prior to the first IMP administration or participants who have not recovered from the side effects of the surgery.
* History of (non-infectious) pneumonitis/interstitial lung disease that required steroids or the presence of ongoing pneumonitis/interstitial lung disease).
* Clinically significant cardiovascular disease or condition.
* Known active CNS metastases and/or leptomeningeal disease.

Contacts and Locations

Study Contact

Atif Abbas, MD

CONTACT

617-671-9779

atif.abbas@stormtherapeutics.com

Melinda Snyder

CONTACT

617-233-4057

melinda.snyder@stormtherapeutics.com

Study Locations (Sites)

START

San Antonio, Texas, 78229

United States

Collaborators and Investigators

Sponsor: STORM Therapeutics LTD

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2025-05-05

Study Completion Date2026-01-29

Study Record Updates

Study Start Date2025-05-05

Study Completion Date2026-01-29

Terms related to this study

Keywords Provided by Researchers

STC-15
Toripalimab
PD1
Checkpoint Combination

Additional Relevant MeSH Terms

Metastatic Non-small Cell Lung Cancer
Metastatic Melanoma
Metastatic Endometrial Cancer
Metastatic Head-and-neck Squamous-cell Carcinoma
Solid Tumor