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AZD9291 Dosing

Phase 3

Lung Cancer | Small molecule | Oncology |AstraZeneca PLC|Last Updated: Nov 20, 2025

Success Probability

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Trial Design

UNCONTROLLED
Total Trials2
Total Enrollment3,273

FDA Designations

No designations recorded

Clinical trial landscape

AZD9291 Dosing · 6 trials · 4 indications

Phase 3 2Phase 1 4
NCT02997501T790M Plasma Testing Methodology Comparison and Clinical ValidationLung Cancer
COMPLETED256 Analytics
NCT02474355Real World Treatment Study of AZD9291 for Advanced/Metastatic EGFR T790M Mutation NSCLCLung Cancer
COMPLETED3,017 Analytics
PHASE3COMPLETED
T790M Plasma Testing Methodology Comparison and Clinical Validation
Lung CancerUnlock trial analytics
PHASE3COMPLETED
Real World Treatment Study of AZD9291 for Advanced/Metastatic EGFR T790M Mutation NSCLC
Lung CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Concordance
Up to 6 months

To evaluate concordance of T790M plasma mutation testing between the Cobas test and each of other platforms: Super-ARMS, digital PCR or NGS.

PFS Using Investigator Assessments According to RECIST v1.1
The time from first dose of AZD9291 in this study until the date of disease progression as recorded in CRF or death (by any cause in the absence of progression), assessed up to 18 months

To assess the efficacy of AZD9291 monotherapy by assessment of PFS in adult patients with advanced or metastatic NSCLC, who have received prior EGFR- TKI therapy and are T790M mutation positive detected by any one of the four plasma testing platforms. PFS was defined using Response Evaluation Criteria In Solid Tumors version 1.1(RECIST v1.1).

Overall Survival (OS)
From the date of first dose of Osimertinib until the date of death (due to any cause) or last participant contact [up to 43 months]

OS was defined as the time, in months from the date of first dose of Osimertinib until death due to any cause, or at last documented contact with participant status "alive" (in this study any participants alive at study discontinuation, or lost to follow-up was considered being censored at study discontinuation date or at the last known date participant was alive). OS was summarized using a Kaplan-Meier (KM) estimate of the median time to death or censoring together with their 95% confidence intervals.

Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
From screening to progression follow-up [every 6 weeks +/- 1 week] relative to the date of enrolment until the end of study [up to 43 months]

Safety assessment of Osimertinib was analyzed by evaluating AEs and SAEs.

Assessment of Maximum Plasma Concentration (Cmax) for Rosuvastatin After a Single Dose Alone and in Combination With AZD9291
Blood samples collected on Days 1 and 32 at pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, 12, 24, 36, 48, 60, and 72 hours post rosuvastatin dose in Part A.

Rate and extent of absorption of rosuvastatin by assessment of Cmax. Single rosuvastatin doses were first without, then with AZD9291 (Day 1 \[Period 1\] and Day 32 \[Period 3\], respectively).

Assessment of AUC From Time Zero Extrapolated to Infinity for Rosuvastatin After a Single Dose Alone and in Combination With AZD9291
Blood samples collected on Days 1 and 32 at pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, 12, 24, 36, 48, 60, and 72 hours post rosuvastatin dose in Part A.

Rate and extent of absorption of rosuvastatin by assessment of AUC from time zero extrapolated to infinity. Single rosuvastatin doses were first without, then with AZD9291 (Day 1; Period 1 and Day 32; Period 3, respectively).

Pharmacokinetics of AZD9291 by assessment of maximum plasma AZD9291 concentration (Cmax)
Blood samples are collected at the following timepoints post AZD9291 dose on Day 1: pre-dose, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 120, 168, 216, 336, and 504 hours

Rate and extent of absorption of AZD9291 following single oral doses of AZD9291 tablet formulation by assessment of maximum plasma AZD9291 concentration (Cmax).

Pharmacokinetics of AZD9291 by assessment of area under the plasma concentration time curve from zero to infinity (AUC)
Blood samples are collected at the following timepoints post AZD9291 dose on Day 1: pre-dose, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 48, 72, 120, 168, 216, 336, and 504 hours

Rate and extent of absorption of AZD9291 following single oral doses of AZD9291 tablet formulation by assessment of area under the plasma concentration time curve from zero to infinity (AUC).

Cmax of Simvastatin
Blood samples collected on Days 1 and 31 at pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 28, and 32 hours post simvastatin dose in Part A

Pharmacokinetics of simvastatin by assessment of maximum plasma simvastatin concentration

AUC of Simvastatin
Blood samples collected on Days 1 and 31 at pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 28, and 32 hours post simvastatin dose in Part A

Pharmacokinetics of simvastatin by assessment of area under the plasma concentration time curve from zero to infinity

AUC of AZD9291
PK samples collected in both period 1 and 2 at pre-dose, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 24, 48, 72, 120, 168, 216, 336, and 504 hours post AZD9291 dose

Area under the plasma concentration-time curve from zero to infinity for AZD9291

Cmax of AZD9291
PK samples collected in both period 1 and 2 at pre-dose, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 24, 48, 72, 120, 168, 216, 336, and 504 hours post AZD9291 dose.

Rate and extent of absorption of AZD9291 following single oral doses of AZD9291 tablet formulation by assessment of maximum plasma concentration (Cmax).

Secondary Endpoints

Testing Sensitivity, Specificity, PPV, NPV
Up to 6 months.
Overall Response Rate (ORR)
From first patient first CT scan for RECIST assessment, till the last patient last CT scan, up to 22 months.
75% OS Duration
From first patient signed the consent to study completion, up to 22 months.
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeOTHER

Treatment Arms

ArmTypeDescription
AZD9291EXPERIMENTALSingle arm of AZD9291, starting dose of 80mg
AZD9291 and rosuvastatinEXPERIMENTALSequential treatments of rosuvastatin alone followed by AZD9291 alone, followed by rosuvastatin + AZD9291.
Normal hepatic functionOTHERPatients without a history or presence of hepatic disease
Mild hepatic impairmentOTHERPatients defined by the Child-Pugh classification system to be Child-Pugh A
Moderate hepatic impairmentOTHERPatients defined by the Child-Pugh classification system to be Child-Pugh B
AZD9291 and simvastatinEXPERIMENTALSequential treatments of simvastatin alone followed by AZD9291 alone, followed by simvastatin + AZD9291.
AZD9291 and omeprazoleEXPERIMENTALSequential treatments of AZD9291 + omeprazole followed by AZD9291 alone, with a washout period in between.

Interventions

NameTypeDescription
T790M+ TestingPROCEDUREThe patient will need to have T790M+ testing
Baseline Visit Blood & Urine TestingPROCEDUREBlood count and standard chemistry testing to ensure patient meets inclusion/exclusion criteria
Baseline ECGPROCEDUREECG to ensure absence of any cardiac abnormality
Visual Slit-Lamp TestingPROCEDURESlit-lamp testing performed to ensure patients do not have any eye abnormalities or symptoms
AZD9291 DosingDRUGPatients to be provided with AZD9291 every 6 weeks (+/- 7 days)
Plasma AZD9291 testingPROCEDUREThe patient will need to have plasma AZD9291 testing before treatment
Pharmacokinetic sampling - AZD9291PROCEDUREBlood sampling to measure AZD9291
AZD9291 tablet dosingDRUGPart A: AZD9291 80mg tablet taken from Days 4 to 35. Part B: AZD9291 80mg tablet taken daily for 12 months.
RosuvastatinDRUGRosuvastatin (BCRP substrate) 20mg taken once daily on Days 1 and 32 (Part A) .
Pharmacokinetic sampling - rosuvastatinPROCEDUREBlood sampling to measure rosuvastatin levels
Pharmacokinetic sampling - AZ5140 and AZ7550PROCEDUREBlood samples to measure levels of AZ5140 and AZ7550
SimvastatinDRUGSimvastatin (CYP substrate) 40mg taken once daily on Days 1 and 31 (Part A)
Pharmacokinetic sampling - simvastatinPROCEDUREBlood sampling to measure simvastatin levels
Omeprazole tablet dosingDRUGOmeprzole taken from Days 1 to 5 in Period 1.
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Eligibility Criteria

Age Range18 Years to 130 Years
SexALL
Healthy VolunteersNo
Study Sites7

Inclusion Criteria: 1. Provision of informed consent prior to any study specific procedures. 2. Adults (according to China regulations for age of majority) 3. Histological or cytological confirmed locally advanced NSCLC (stage IIIB) or metastatic (stage IV) NSCLC, not amenable to curative surgery o...

Countries:ChinaArgentinaAustraliaAustriaBelgiumBrazilCanadaDenmarkIrelandItalySaudi ArabiaSouth KoreaSpainSwedenTaiwanUnited KingdomUnited StatesFrance
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Competitive Landscape -Lung Cancer 281 trials

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Frequently asked questions about AZD9291 Dosing

What is AZD9291 used for?

AZD9291 is an investigational small molecule being studied in oncology, specifically for solid tumours and non-small cell lung cancer (NSCLC). Clinical trials have assessed its effects in patients with advanced solid tumours, including those with EGFRm+ NSCLC, and in healthy volunteers for drug interaction studies.

Who makes AZD9291?

AZD9291 is being developed by AstraZeneca PLC, a biopharmaceutical company listed on the stock exchange under the ticker AZN. The company has sponsored multiple clinical trials to evaluate the drug's safety and blood levels in various patient populations.

What phase is AZD9291 in?

AZD9291 is in Phase 3 clinical development. While the specific trials listed are Phase 1 studies, the overall development program has advanced to Phase 3, indicating it is still investigational and not yet approved for commercial use.

What clinical trials is AZD9291 in?

AZD9291 has been studied in several completed clinical trials, including NCT02161770 in patients with advanced solid tumours and liver impairment, NCT02197234 and NCT02317016 in patients with EGFRm+ NSCLC, and NCT02224053 in healthy volunteers. These trials assessed drug interactions and safety.

Is AZD9291 the same as osimertinib?

AZD9291 is an investigational drug being developed by AstraZeneca. It is being studied for the treatment of solid tumours and non-small cell lung cancer. The drug has undergone Phase 1 trials to evaluate its safety and effects on blood levels of other medications.