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Clinical Trials in the USA / NCT06624644
Recruiting Phase 2/3

A Trial of LNS8801 With or Without Pembrolizumab in Patients With Refractory Melanoma

NCT06624644 · tracked via the Priya Life Science USA tracker
Sponsor
Linnaeus Therapeutics, Inc.
Phase
Phase 2/3
Started
2025-08-06
Last updated
2026-04-22

Condition(s) studied

Melanoma (Skin Cancer)Melanoma Stage IIIB-IVCutaneous MelanomaUnresectable Melanoma

Investigational drug(s) / intervention(s)

LNS8801PembrolizumabChemotherapy (dacarbazine or temozolomide)Immunotherapy (Pembrolizumab)Immunotherapy (nivolumab and relatlimab)Immunotherapy (ipilimumab and nivolumab)

LNS8801: G protein-coupled estrogen receptor (GPER) agonist

Pembrolizumab: Recombinant monoclonal antibody (anti-PD1)

Chemotherapy (dacarbazine or temozolomide): chemotherapy (dacarbazine, temozolomide)

Immunotherapy (Pembrolizumab): pembrolizumab

Immunotherapy (nivolumab and relatlimab): nivolumab and relatlimab

Immunotherapy (ipilimumab and nivolumab): ipilimumab and nivolumab

Study summary

The goal of this clinical trial is to understand if a new drug called LNS8801 can safely treat patients with melanoma. The primary question to be answered is what is the average length of time during which melanoma does not grow or spread after starting treatment with LNS8801? Researchers will compare LNS8801 taken alone or LNS8801 taken together with another drug called pembrolizumab to other therapies as decided by the treating doctor.

135 patients will be randomly (like flipping a coin) placed in 3 treatment groups.

In the first group (LNS8801 only) - Patients will take 125mg tablet of LNS8801 by mouth once per day every day for up to 2 years.

In the second group (LNS8801 + pembrolizumab) - Patients will take 125mg tablet of LNS8801 by mouth once per day plus 200 mg of pembrolizumab by IV infusion once every 3 weeks for up to 2 years.

In the third group, called Physician's Choice (PC), patients will receive chemotherapy (dacarbazine or temozolomide) or immunotherapy (pembrolizumab, nivolumab/relatlimab or nivolumab/ipilimumab) as determined by their treating physician.

How often the patient visits the clinic visits will depend on the treatment group. Besides returning to the clinic for treatment, the patient will undergo periodic safety assessments and other required study procedures such as imaging assessments.

Eligibility

Sex
ALL
Min age
18 Years
Max age
Healthy volunteers
No
Inclusion Criteria: * Confirmed unresectable and/or metastatic cutaneous melanoma. * 2 copies of the fully functional form of GPER protein-coding sequence. * Eligible for and willing to receive 1 or more of the physician's choice (PC) therapies. * Able to swallow tablets. * Progressed on treatment with an anti-PD-1 monoclonal antibody (mAb) administered either as monotherapy or in combination with other therapies. * Received an anti-CTLA-4 and/or BRAF containing regimen or is not eligible for or has declined anti-CTLA-4 and/or BRAF therapy prior to and for this study. * Measurable disease. * Eastern Cooperative Oncology Group Performance Status of 0 to 1. Exclusion Criteria: * Blue nevus subtype, mucosal, acral lentiginous, or uveal/ocular/choroidal Melanoma. * Previous anti-cancer or investigational drug/device treatment within 4 weeks of the first dose of study drug. * Radiotherapy within 2 weeks of starting study drug. * Allogeneic tissue/solid organ transplant. * Unstable autoimmune or immunodeficiency disease. * Other concurrent health issues that would make participation or completion of the study difficult. * Prior reaction to anti PD-1 therapy that would make treatment with pembrolizumab unadvisable. * Other protocol-defined inclusion/exclusion criteria may apply.

Primary outcome measure(s)

Trial sites (9)

FacilityCityRegionStatus
USC Newport Beach Newport Beach California Recruiting
UCSF San Francisco California Recruiting
Stanford Stanford California Recruiting
University of Colorado Anschutz Aurora Colorado Recruiting
University of Colorado Denver Colorado Recruiting
Moffitt Cancer Center Tampa Florida Recruiting
Dana Farber Boston Massachusetts Recruiting
University of New Mexico Albuquerque New Mexico Recruiting
UPenn Philadelphia Pennsylvania Recruiting

On this site

📄 Keytruda (pembrolizumab) drug profile →

More Linnaeus Therapeutics, Inc. trials in the USA

Other trials for the same condition

Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT06624644 on ClinicalTrials.gov ↗ ← All trials in the USA