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Ph2 Study NKT2152 With Palbociclib & Sasanlimab in Subjects With Advanced Clear Cell Renal Cell Carcinoma (ccRcc)

A Phase 2 Trial to Evaluate the Safety and Efficacy of NKT2152 in Combination With Palbociclib (Doublet) and With Palbociclib and Sasanlimab (Triplet) in Subjects With Advanced or Metastatic Clear Cell Renal Cell Carcinoma

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05935748
Enrollment
18
Registered
2023-07-07
Start date
2023-07-28
Completion date
2025-09-04
Last updated
2025-11-12

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

Conditions

ccRCC, Clear Cell Renal Cell Carcinoma, Kidney Cancer, Kidney Neoplasms, Renal Cancer, Renal Neoplasms, Recurrent Renal Cell Carcinoma, Metastatic Renal Cell Carcinoma, Refractory Renal Cell Carcinoma, Advanced Renal Cell Carcinoma, Carcinoma, Neoplasms, Carcinoma, Renal Cell, Neoplasms, Glandular and Epithelial, Neoplasm by Histology, Adenocarcinoma, Urologic Neoplasms, Urogenital Neoplasms, Neoplasms by Site, Kidney Diseases, Urologic Diseases

Keywords

HIF2a, Hypoxia-inducible factor 2alpha, CDK4 inhibitor, CDK6 inhibitor, PD-1, immune checkpoint inhibitors

Brief summary

The goal of the Lead-in phase of the study is to evaluate the safety, efficacy, pharmacokinetics (PK) and determine recommended dose for expansion (RDE) of NKT2152 in combination with palbociclib (Doublet) and with palbociclib and sasanlimab (Triplet) in subjects with advanced or metastatic clear cell renal cell carcinoma (ccRCC) who received prior therapy. The goal of the Expansion phase of the study is to evaluate the safety, efficacy, PK at the selected RDE and identify the RP2D for NKT2152 in combination with palbociclib (Doublet) and with palbociclib and sasanlimab (Triplet) in subjects with advanced or metastatic clear cell renal cell carcinoma (ccRCC) who received prior therapy.

Detailed description

This is a Phase 2 open-label, multicenter, global study of NKT2152. This study is designed as two phases: a Lead-in phase and an Expansion phase. Patients must be 18 years or older, with advanced or metastatic clear cell renal cell carcinoma (ccRCC). Eligible patients must have progressed or relapsed after at least 1 prior anti-vascular endothelial growth factor (VEGF)/VEGF receptor (VEGFR) systemic therapy and 1 immune checkpoint inhibitor (ICI) for advanced or metastatic ccRCC alone or in combination. The Lead-in phase is designed as a dose escalation phase to evaluate the safety, efficacy, pharmacokinetics (PK) and determine recommended dose for expansion (RDE) of NKT2152 in combination with palbociclib and sasanlimab in advanced or metastatic ccRCC patients who received prior therapy. The subsequent Expansion phase will evaluate the safety, efficacy, PK at the selected RDE and identify the RP2D for NKT2152 in combination with palbociclib and sasanlimab in advanced or metastatic ccRCC patients who received prior therapy.

Interventions

Oral HIF2a inhibitor

DRUGpalbociclib

a cyclin-dependent kinases (CDK) 4 and 6 inhibitor

an immunoglobulin G4 (IgG4) monoclonal antibody that blocks PD-1; a solution for injection for subcutaneous administration

Sponsors

Pfizer
CollaboratorINDUSTRY
NiKang Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Masking description

Randomization during Expansion phase

Intervention model description

Lead-in/Dose Escalation (doublet & triplet combination) and Dose Expansion (doublet & triplet combination)

Eligibility

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

Inclusion criteria

* Must have locally advanced or metastatic ccRCC and have progressed or relapsed after at least 1 prior anti-VEGF/VEGFR systemic therapy and 1 ICI. * Measurable disease per the Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) * KPS score of at least 70% * Able to swallow oral medications.

Exclusion criteria

* Active CNS metastases and/or carcinomatous meningitis * Has had any major cardiovascular event within 6 months or clinically significant cardiovascular disease * Major surgery (eg, GI surgery, removal or biopsy of brain metastasis) within 3 months before administration of study drug. * Has known HIV * History of hepatitis B or known active hepatitis C infection * Has received prior treatment with NKT2152, other HIF2α inhibitors, other CDK 4/6 inhibitors, palbociclib, or sasanlimab * Radiation therapy for bone metastasis within 2 weeks, or any other external radiation therapy within 4 weeks before administration of the first dose of study treatment * Corrected QT interval calculated by Fridericia formula (QTcF) \> 480 ms within 28 days prior to first dose * Hypoxia or requires intermittent or chronic supplemental oxygen or any chronic lung condition which has required supplemental oxygen in the past * Has a history of interstitial lung disease * Has any active or recent history of a known or suspected autoimmune disease

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants with Dose Limiting Toxicity (DLT) events during the DLT monitoring period (first 28 days of dosing) in the Lead-in Phase28 daysDLTs graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5 .0.
Objective Response Rate (ORR) determined by the Investigator1 yearsORR defined as the percentage of participants with a confirmed complete response (CR) or partial response (PR) based on Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.

Secondary

MeasureTime frameDescription
Time to Response (TTR)1 yearsTTR is defined as the time from first dose to the first documented CR or PR which is subsequently confirmed.
Overall Survival (OS)2 yearsOS defined as the time from the date the participant started study drug to death for any reason.
Clinical Benefit Rate (CBR)1 yearsCBR defined as the percentage of participants with a confirmed complete response (CR) or partial response (PR) or a stable disease (SD) of 8 weeks or longer based on Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
Number of Participants with Adverse Events2 yearsAn adverse event (AE) is defined as any untoward medical occurrence in a patient and which does not necessarily have a causal relationship with this treatment. The investigator assessed the relationship of each event to the use of study drug as either probably related, possibly related, probably not related or not related.
Maximum observed plasma concentration (Cmax) of NKT21521 yearsMaximum observed plasma concentration (Cmax) of NKT2152
Time to maximum observed plasma concentration of NKT2152 (Tmax)1 yearsTime to maximum observed plasma concentration of NKT2152 (Tmax)
Observed trough concentration of NKT2152 (Ctrough)1 yearsObserved trough concentration of NKT2152 (Ctrough)
Progression-free survival (PFS)2 yearsPFS defined as the time from the date the participant started study drug to the date the participant experiences an event of disease progression or death.
Maximum observed plasma concentration (Cmax) of palbociclib1 yearsMaximum observed plasma concentration (Cmax) of palbociclib
Time to maximum observed plasma concentration of palbociclib (Tmax)1 yearsTime to maximum observed plasma concentration of palbociclib (Tmax)
Observed trough concentration of palbociclib (Ctrough)1 yearsObserved trough concentration of palbociclib (Ctrough)
Area under the plasma concentration time curve (AUC0-t) of palbociclib, and accumulation ratio (RAC)1 yearsArea under the plasma concentration time curve (AUC0-t) of palbociclib, and accumulation ratio (RAC)
Observed trough concentration of sasanlimab (Ctrough)1 yearsObserved trough concentration of sasanlimab (Ctrough)
Maximum observed plasma concentration (Cmax) of sasanlimab1 yearsMaximum observed plasma concentration (Cmax) of sasanlimab
Area under the plasma concentration time curve (AUC0-t) of NKT2152, and accumulation ratio (RAC)1 yearsArea under the plasma concentration time curve (AUC0-t) of NKT2152, and accumulation ratio (RAC)
Duration of Response (DOR)1 yearsDuration of overall response is defined as the time from the date of first documented CR or PR, assessed by investigator and based on RECIST v. 1.1, to the documented date of progressive disease (PD) or death, whichever occurred first.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026