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SW-682 in Advanced Solid Tumors

A Phase 1a/1b Dose Escalation, Dose Expansion Study of SW-682 in Participants With Advanced Solid Tumors Enriched for Those With Hippo Pathway Mutations

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06251310
Enrollment
186
Registered
2024-02-09
Start date
2024-07-31
Completion date
2027-01-18
Last updated
2026-09-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumor, Mesothelioma, Malignant

Brief summary

This is a first-in-human (FIH), Phase 1a/1b open-label, multicenter, dose escalation and dose expansion study of SW-682 in adult participants with metastatic or unresectable advanced solid tumors with or without Hippo pathway alterations that are refractory to, or have progressed, during or after appropriate prior systemic anticancer therapy, including chemotherapy, immunotherapy, radiation therapy or targeted therapy, or for which no treatment is available, or prior standard of care (SOC) therapy was not tolerated and for which there is no further SOC treatment available. The study includes a Part 1 (Phase 1a) dose escalation phase and a Part 2 (Phase 1b) dose expansion to optimize the dose to be used for further development. All participants will self-administer SW-682 by mouth in 28-day cycles.

Interventions

DRUGSW-682

SW-682 tablet administered orally

DRUGCombination Therapy

Appropriate combination therapy

Sponsors

SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

The study will be conducted in two sequential parts: Part 1 dose escalation and Part 2 dose expansion.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Histologically confirmed, metastatic, or unresectable solid cancer that has either not responded to or progressed during or after appropriate prior systemic anticancer therapy including chemotherapy, immunotherapy, radiation therapy, or appropriate targeted therapy, or for which there is no treatment available or prior SOC therapy was not tolerated and for which there is no further SOC treatment available * Part 1: must have one of the following: * Mesothelioma with or without NF2 mutations * Advanced solid tumors with NF2 mutations * Advanced solid tumors with other Hippo pathway mutations or fusions (e.g., FAT1, LATS1/2, YAP fusions; WWTR1-CAMTA1 in EHE). * Part 2: must have the tumor histology and oncogenic mutation or genomic aberration specific to each dose expansion cohort defined below: * Cohort 1: Participants with mesothelioma with or without NF2 mutations * Cohort 2: Participants with advanced solid tumors with NF2 mutations * Cohort 3: Participants with advanced solid tumors with other Hippo pathway mutations identified during Part 1 (Phase 1a) dose escalation * Cohort 4: SW-682 with appropriate combination therapy. * In both parts, participants should have known oncogenic mutation identified by Next Generation Sequencing or local assay * Must have archival tumor tissue or agree to a fresh tumor biopsy at screening * Measurable disease per RECIST 1.1 * Eastern Cooperative Oncology Group (ECOG) performance status of ≤1 * Adequate bone marrow, kidney, hepatic, and coagulation function Key

Exclusion criteria

* Evidence of symptomatic CNS metastases, leptomeningeal carcinomatosis, or untreated spinal cord compression * Clinically significant cardiac disease or abnormal cardiac parameters * Preexistence or inheritance of a familial renal syndrome * Concomitant non-anti-arrhythmic medications that are known to prolong the QTc interval * Concomitant medicines that are known strong/moderate inhibitors or inducers of cytochrome P450 3A4 (CYP3A4) and/or CYP1A2 within 14 days or 5 half-lives before the first dose of study treatment * Concomitant medicines that are known sensitive substrates of CYP3A4, CYP2C19, CYP2D6, CYP1A2, and/or CYP2B6 within 14 days or 5 half-lives before the first dose of study treatment * Concomitant medicines that are known sensitive substrates of PGP, BCRP, OATP1B1, OATP1B3, OAT1, OAT3, MATE1, MATE2-K, OCT2 * Clinically significant active infection (bacterial, fungal, or viral)

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Adverse Events (Part 1 Only)Up to 24 monthsSafety and tolerability endpoint evaluation via incidence of dose limiting toxicities (DLTs), serious adverse events (SAEs), treatment emergent adverse events (TEAE)
Maximum Tolerated Dose (Part 1 Only)Up to 24 monthsThe maximum tolerated dose (MTD) for SW-682, if any, will be based on safety and tolerability during the first 28 days of treatment in Cycle 1.
Recommended Dose for Expansion (Part 1 Only)Up to 24 monthsThe recommended dose for expansion (RDE) will be determined based on all safety, tolerability, pharmacokinetics (PK), preliminary antitumor efficacy, and other available data from Part 1 of the study.
Objective Response Rate (Part 2 Only)Up to 24 monthsObjective response rate (ORR), defined as the proportion of participants with confirmed CR or PR using RECIST v1.1, mRECIST for mesothelioma, and/or GCIG CA-125 for ovarian cancer, as applicable, assessed by the investigator.

Secondary

MeasureTime frameDescription
Change in plasma and urine concentrations of SW-682Up to 24 monthsPlasma and urine concentrations of SW-682 and any relevant metabolite(s) will be measured to evaluate systemic exposures and renal elimination.
Objective Response Rate (Part 1 Only)Up to 24 monthsObjective response rate (ORR), defined as the proportion of participants with confirmed CR or PR using RECIST v1.1, mRECIST for mesothelioma, and/or GCIG CA-125 for ovarian cancer, as applicable, assessed by the investigator.
Disease Control RateUp to 24 monthsDisease control rate (DCR), defined as the percentage of participants with CR, PR, or stable disease (SD) after starting study treatment.
Duration of ResponseUp to 24 monthsDuration of response (DoR), defined as the time from response (CR + PR using RECIST v1.1, mRECIST and/or (GCIG) criteria for CA-125 response in ovarian cancer, as applicable) to disease progression and/or death, whichever occurs first.
Progression-Free SurvivalUp to 24 monthsProgression-free survival (PFS), defined as the time from the date of the first administration of study treatment to the first documented disease progression per RECIST v1.1, mRECIST, and/or GCIG CA-125, as applicable, or death due to any cause, whichever occurs first.

Countries

United States

Contacts

CONTACTUS Medical Information
eMediUSA@emdserono.com888-275-7376
STUDY_DIRECTORMedical Responsible

SpringWorks Therapeutics, Inc., a healthcare company of Merck KGaA, Darmstadt, Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 3, 2026