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NL-201 Monotherapy and in Combination With Pembrolizumab in Patients With Relapsed or Refractory Cancer

A First-in-Human Phase 1 Study of NL-201 Monotherapy and in Combination With Pembrolizumab in Patients With Relapsed or Refractory Cancer

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04659629
Enrollment
59
Registered
2020-12-09
Start date
2021-04-26
Completion date
2024-08-15
Last updated
2024-10-01

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

Conditions

Solid Tumor, Advanced Solid Tumor

Keywords

Cancer, NL-201, NL201-101, Phase 1, Immunotherapy, Cytokine, Pembrolizumab, Keytruda, IL-2, IL-15, MK-3475

Brief summary

Parts 1 and 2 The primary purpose of this study is to understand the safety of NL-201 when given intravenously as monotherapy in patients with advanced cancer to evaluate tolerability and to identify a recommended dose and schedule for further testing. In Part 1, there will be backfill cohorts at certain Data Monitoring Committee (DMC)-cleared dose levels and schedules to collect pharmacokinetic (PK), pharmacodynamic (PD) and response data in certain tumor types or to explore additional pre-medication regimens. Parts 3 and 4 The primary purpose of this study is to understand the safety of NL-201 in combination with pembrolizumab when both drugs are given intravenously in patients with advanced cancer, to evaluate tolerability, and to identify a recommended dose and schedule for further testing.

Detailed description

Patients will have tests and exams to see if they are eligible for the clinical trial. Parts 1 and 2 If eligible, the patient will receive NL-201 treatment by vein. Tumor response to treatment will be assessed every 6 weeks for 12 weeks, and every 12 weeks thereafter until disease progression. Patients will be able to receive study treatment as long as it is tolerated and there is evidence of clinical benefit. Safety follow-up will occur within 7 days after the last dose of NL-201. Patients will then enter long-term follow-up until starting a subsequent therapy. In Part 1, there will be backfill cohorts at certain DMC-cleared dose levels and schedules to collect PK, PD and response data in certain tumor types or to explore additional pre-medication regimens. Parts 3 and 4 If eligible, the patient will receive NL-201 and pembrolizumab treatment by vein. Tumor response to treatment will be assessed every 6 weeks for 12 weeks, and every 12 weeks thereafter until disease progression. Patients will be able to receive study treatments as long as they are tolerated and there is evidence of clinical benefit. Safety follow-up will occur within 7 days after the last dose of investigational product. Patients will then enter long-term follow-up until starting a subsequent therapy.

Interventions

DRUGNL-201

NL-201 is a de novo protein therapeutic.

A programmed death receptor-1 (PD-1)-blocking antibody

Sponsors

Merck Sharp & Dohme LLC
CollaboratorINDUSTRY
Neurogene Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients with measurable disease * Patients with Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 * At least 6 weeks from any prior nitrosurea or mitomycin C therapy; at least 4 weeks from any other prior chemotherapy or checkpoint inhibitor; at least 2 weeks from any kinase inhibitor * Part 1 Only: Patients with relapsed or refractory advanced solid tumor, other than prostate cancer, who have progressed, not tolerated or are ineligible for all approved lines of therapy * Part 2 Only: Patients with kidney and skin cancer who have failed at least 1 line of systemic therapy * Part 3 Only: Patients with solid tumors who have received ≥ 1 prior line of therapy for advanced or metastatic disease * Part 4 Only: Patients with diagnosed target disease OR previously received pembrolizumab

Exclusion criteria

* Prostate Cancer * Any serious medical condition or laboratory abnormality or psychiatric condition or any other significant or unstable concurrent medical illness (in the opinion of the Investigator) would preclude protocol adherence or would make the safety of the study drug difficult to assess * Known or suspected SARS-CoV-2 infection, unless patient tests negative for SARS-CoV-2 within the Screening period * History of solid organ transplant or bone marrow transplant * Prior chimeric antigen receptor T-cell (CAR-T) or allogeneic cellular therapy * Prior IL-2-based cancer therapy * Ongoing systemic immunosuppressive therapy * Concurrent therapy with any other investigational agent, vaccine, or device. * Part 3 and 4 Only: History of (non-infectious) pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease * Part 3 and 4 Only: Known additional cancer that is progressing or has required active treatment within the past 2 years. Note: Participants with basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or carcinoma in situ (eg, breast carcinoma, cervical cancer in situ) that have undergone curative resection are eligible.

Design outcomes

Primary

MeasureTime frameDescription
Recommended phase 2 dose (RP2D) for NL-201 in combination with Pembrolizumab (Parts 3 and 4)Up to Day 33Evaluation of tolerability of NL-201 in combination with Pembrolizumab as measured by number of subjects with dose limiting toxicities (DLTs)
Severity of treatment-emergent adverse eventsUp to Day 33Rate of adverse event grades in patients with advanced solid tumors
Incidence of treatment-emergent adverse eventsUp to Day 33Rate of adverse events in patients with advanced solid tumors
Recommended dose schedule for NL-201 in combination with Pembrolizumab (Parts 3 and 4)Up to Day 33Evaluation of tolerability of NL-201 in combination with Pembrolizumab as measured by number of subjects with dose limiting toxicities (DLTs)
Recommended phase 2 dose (RP2D) for NL-201 (Parts 1 and 2)Up to Day 33Evaluation of tolerability of NL-201 as measured by number of subjects with dose limiting toxicities (DLTs)
Recommended dose schedule for NL-201 (Parts 1 and 2)Up to Day 33Evaluation of tolerability of NL-201 as measured by number of subjects with dose limiting toxicities (DLTs)

Secondary

MeasureTime frameDescription
Pharmacokinetic (PK) profile of NL-201 by area under the plasma concentration time curve (AUC)Up to 24 monthsPrespecified timepoints in serum before and after dosing with NL-201.
Pharmacokinetic (PK) profile of NL-201 by volume of distribution (Vd)Up to 24 MonthsPrespecified timepoints in serum before and after dosing with NL-201.
Terminal-Phase Elimination Rate Constant (β) of NL-201Up to 24 monthsPrespecified timepoints in serum before and after dosing with NL-201.
Immunogenicity of NL-201Up to 24 monthsAnti-drug antibodies in serum during and after treatment with NL-201
Pharmacokinetic (PK) profile of NL-201 by maximum observed plasma concentration (Cmax)Up to 24 monthsPrespecified timepoints in serum before and after dosing with NL-201.
Best Objective Response according to RECIST version 1.1Up to 36 monthsBased on Investigator assessment of radiographic imaging
Objective Response Rate (ORR) according to RECIST version 1.1Up to 36 monthsBased on Investigator assessment of radiographic imaging
Progression-Free Survival (PFS) according to RECIST version 1.1Up to 36 monthsBased on Investigator assessment of radiographic imaging
Duration of Response (DOR) according to RECIST version 1.1Upto 36 monthsBased on Investigator assessment of radiographic imaging
Pharmacokinetic (PK) profile of NL-201 by half-life (t1/2)Up to 24 MonthsPrespecified timepoints in serum before and after dosing with NL-201.

Other

MeasureTime frameDescription
Flow cytometry analysis of immune cells in bloodUp to 36 monthsBased on appropriate assay
Estimate additional measures of anti-tumor activity of NL- 201 per iRECIST criteriaUp to 36 monthsBased on Investigator assessment of imaging
Analysis of immune characteristics of the tumor microenvironmentUp to 36 monthsBased on appropriate assay
Serum measurements of inflammatory cytokine levelsUp to 36 monthsBased on appropriate assay

Countries

Australia, Canada, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026