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NKTR-255

Phase 2

Lung Cancer | Small molecule | Oncology |Nektar Therapeutics|Last Updated: Mar 11, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment39
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05632809REStoring lymphoCytes Using NKTR-255* After chemoradiothErapy in Solid Tumors (RESCUE)PHASE2 RECRUITING 39Jan 10, 2023Dec 31, 2027Mar 11, 20261 United States
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Study Endpoints
Primary Endpoints
Overall survival time distribution
through study completion; an average of 1 year
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
NKTR-255 combination (Durvalumab)EXPERIMENTALParticipants will receive vein over about 30 minutes. Participants receive the first dose within 72 hours (3 days) after you complete CRT and the second dose at 3 weeks after you complete CRT. Then, you will receive NKTR-255 one (1) time every 4 weeks after that for up to 1 year. Durvalumab Participants will receive durvalumab by vein over about 30 minutes. You will receive the first dose at 3 weeks after you complete CRT therapy. Then, you will receive durvalumab one (1) time every 4 weeks after that for up to 1 year
Interventions
NameTypeDescription
NKTR-255DRUGGiven by IV (vein)
DurvalumabDRUGGiven by IV (vein)
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Age 18 years or older 2. Histologic diagnosis of non-small cell lung cancer 3. Written consent obtained before initiation of any study-related procedures 4. Definitive cancer treatment intent 5. Absence of concurrent malignancies at other sites, except low risk prostate cance...

Countries:United States
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Competitive Landscape -Lung Cancer 290 trials
CompanyTickerTrialsLead PhaseDrugs
Merck & Co., Inc.MRK10PHASE3Pembrolizumab, Olaparib, Etoposide /m^2, Pembrolizumab/Vibostolimab Co-Formulation, Etoposide
Gilead Sciences, Inc.GILD5PHASE3Sacituzumab Govitecan, Topotecan, Amrubicin, Lurbinectedin, Domvanalimab
Amgen Inc.AMGN14PHASE3Tarlatamab, Durvalumab, ABP 234, Pembrolizumab, Lurbinectedin
AstraZeneca PLCAZN32PHASE3Durvalumab, Tremelimumab, Volrustomig, Pembrolizumab, Carboplatin
BioNTech SE Sponsored ADRBNTX6PHASE3Pumitamig, Atezolizumab, Etoposide, Carboplatin, PM8002
Bristol-Myers Squibb CompanyBMY15PHASE3MRTX849, Docetaxel, BMS-986489, Atezolizumab, Carboplatin
Pfizer Inc.PFE13PHASE3PF-08634404, Pembrolizumab, Chemotherapy Regimen 1, PF-07220060, Letrozole
AbbVie, Inc.ABBV4PHASE3ABBV-706, Topotecan, Lurbinectedin, Amrubicin, Telisotuzumab Adizutecan
ArriVent BioPharma, Inc.AVBP6PHASE3furmonertinib , daily, platinum-based chemotherapy, Firmonertinib, JAB-21822, Tislelizumab
Eli Lilly and CompanyLLY3PHASE3Ramucirumab, Erlotinib, Gefitinib, Osimertinib, LY4175408
Jazz Pharmaceuticals Public Limited CompanyJAZZ3PHASE3Atezolizumab, Lurbinectedin, Carboplatin, Etoposide, Durvalumab
Summit Therapeutics IncSMMT1PHASE3AK112
Revolution Medicines, Inc.RVMD2PHASE3daraxonrasib, docetaxel, RMC-6291, RMC-6236, Pembrolizumab
Incyte CorporationINCY3PHASE3Retifanlimab, Pemetrexed, Cisplatin, Carboplatin, Paclitaxel
Takeda Pharmaceutical Co. Ltd. Sponsored ADRTAK1PHASE3TAK-788, Pemetrexed, Cisplatin, Carboplatin
Regeneron Pharmaceuticals, Inc.REGN5PHASE2BNT116, Cemiplimab, Fianlimab, Pemetrexed, Paclitaxel
ImmunityBio IncIBRX3PHASE3Drug: Nogapendekin alfa inbakicept, Pembrolizumab, Cisplatin or Carboplatin, Nab-paclitaxel OR Pemetrexed, Nab-paclitaxel OR Paclitaxel OR Docetaxel
Immutep Ltd Sponsored ADRIMMP2PHASE3eftilagimod alfa, carboplatin plus paclitaxel, cisplatin or carboplatin + pemetrexed, pembrolizumab, IMP321
GSK plc Sponsored ADRGSK1PHASE3Ris-Rez, Topotecan
Zai Lab Ltd. Sponsored ADRZLAB2PHASE3ZL-1310, Atezolizumab, Carboplatin
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT05632809primaryCompletionDate: changed
LOWMay 24, 2026NCT05632809studyFirstPostDate: changed