Recent Updates
Recently added Catalysts

JZP898

Phase 1

Advanced Solid Tumor | Small molecule | Oncology |Jazz Pharmaceuticals plc|Trials Updated: Dec 16, 2025

JZP898 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Oct 2023

JZP898 target and mechanism

Molecular targetIFN ⍺2b
Target classCytokine
ModalitySmall molecule

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

CONTROLLEDBiomarker
Total Trials1
Total Enrollment177

FDA Designations

No designations recorded

JZP898 clinical trials

JZP898 · 1 trial · 2 indications

Phase 1 1
NCT06108050JZP898 Intravenous Infusion as Monotherapy and Combination With Pembrolizumab in Adults With Advanced/Metastatic Solid TumorsAdvanced Solid Tumor
RECRUITING177 Analytics
PHASE1RECRUITING
JZP898 Intravenous Infusion as Monotherapy and Combination With Pembrolizumab in Adults With Advanced/Metastatic Solid Tumors
Advanced Solid TumorUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants with Dose Limiting Toxicities in Monotherapy and Combination Therapy
Up to 36 months
Incidence of TEAEs and SAEs in Monotherapy and Combination Therapy
Up to 36 months
Incidence of dose interruptions, discontinuation, and reductions due to TEAEs in Monotherapy and Combination Therapy
Up to 36 months
Objective Response Rate (ORR) As Assessed by the Investigator In Combination Therapy
Up to 36 months

Secondary Endpoints

Pharmacokinetic Parameter: Maximum Concentration (Cmax) of JZP898 in Monotherapy and Combination Therapy
Up to 36 months
Pharmacokinetic Parameter: Time to Maximum Concentration (Tmax) of JZP898 in Monotherapy and Combination Therapy
Up to 36 months
Pharmacokinetic Parameter: Terminal Elimination Half-life (t½) of JZP898 in Monotherapy and Combination Therapy
Up to 36 months
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part A1 Dose Exploration: JZP898 monotherapyEXPERIMENTAL -
Part A2 Dose Exploration: JZP898 in combination with pembrolizumabEXPERIMENTAL -
Part B Combination Expansion: JZP898 in combination with pembrolizumabEXPERIMENTAL -

Interventions

NameTypeDescription
JZP898DRUGInvestigational drug monotherapy
PembrolizumabDRUGAnti-PD1 antibody
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites10

Inclusion Criteria * Adult ≥ 18 years of age * Histological or cytological diagnosis of advanced or metastatic solid tumor. 1. Previously treated participants with solid tumors that are amenable to CPI therapy (eg. NSCLC, melanoma, HNSCC, RCC, HCC, gastroesophageal carcinomas, UC, or CRC \[MSI-H...

Countries:United States
Unlock Eligibility Criteria

Competitive Landscape -Other Solid Tumors 10 trials (matched to "Advanced Solid Tumor")

Frequently asked questions about JZP898

What is JZP898 used for?

JZP898 is an investigational small molecule being studied in adults with advanced or metastatic solid tumors. It is not approved for any indication and remains in Phase 1 clinical development. The trial enrolls patients with advanced solid tumor and metastatic solid tumor in the United States.

What does JZP898 target?

JZP898 targets interferon alpha 2b, a cytokine. It is a small molecule designed to act on this cytokine pathway. The Phase 1 study evaluates JZP898 as monotherapy and in combination with pembrolizumab in adults with advanced or metastatic solid tumors.

Who is developing JZP898?

JZP898 is being developed by Jazz Pharmaceuticals plc, which trades on the Nasdaq under the ticker JAZZ. The company is the sponsor of the Phase 1 trial evaluating the drug in advanced solid tumors.

What phase is JZP898 in?

JZP898 is in Phase 1 clinical development. It is investigational and has not been approved by the FDA for any indication. The ongoing Phase 1 trial is currently recruiting participants with advanced or metastatic solid tumors.

What clinical trials is JZP898 in?

JZP898 is being studied in one active clinical trial, NCT06108050, titled JZP898 Intravenous Infusion as Monotherapy and Combination With Pembrolizumab in Adults With Advanced/Metastatic Solid Tumors. The trial is Phase 1, recruiting, and plans to enroll 177 participants in the United States.