In first-line locally advanced or metastatic EGFRm NSCLC

Longest reported mPFS and mOS with TAGRISSO + chemotherapy vs TAGRISSO

>2
years

Investigator-assessed mPFS
(primary endpoint)

25.5 months (95% CI: 24.7, NE) for TAGRISSO + CT (pem/plat)* vs
16.7 months (95% CI:14.1, 21.3) for TAGRISSO
HR=0.62 (95% CI: 0.49, 0.79); P<0.0001; N=5571†

TAGRISSO® (osimertinib) + CT (pem/plat) vs TAGRISSO® monotherapy median PFS graphTAGRISSO® (osimertinib) + CT (pem/plat) vs TAGRISSO® monotherapy median PFS graph

  • Median follow-up for PFS (censored patients): 22.2 months (range: 0, 33.1) in the TAGRISSO + CT (pem/plat) arm and 23.7 months (range: 0, 33.1) in the TAGRISSO arm
  • Median follow-up for PFS was 19.5 months (0, 33.3) in the TAGRISSO + chemotherapy arm and 16.5 months (0, 33.1) in the TAGRISSO monotherapy arm

HR=0.62

(95% CI: 0.49, 0.79); P<0.0001; N=5571

PFS rate at 2 years2

57%
for
TAGRISSO + CT (pem/plat) *
(95% CI: 50, 63)

and

41%
for
TAGRISSO
(95% CI: 35, 47)

  • The PFS rate at 2 years was not powered to show statistical significance

PFS results by BICR (sensitivity analysis) were consistent with those reported via investigator assessment1

38%

reduced risk of progression or death
29.4 months (95% CI: 25.1, NC) for TAGRISSO + CT (pem/plat) and
19.9 months (95% CI: 16.6, 25.3) for TAGRISSO
HR=0.62 (95% CI: 0.48, 0.80); N=5572‡

TAGRISSO® (osimertinib) + CT (pem/plat) vs TAGRISSO® monotherapy median PFS graphTAGRISSO® (osimertinib) + CT (pem/plat) vs TAGRISSO® monotherapy median PFS graph

  • This sensitivity analysis was not powered to show statistical significance
  • Median follow-up (censored patients) was 22.2 months (range: 0, 33.1) in the TAGRISSO + CT (pem/plat) arm and 23.7 months (range: 0, 33.1) in the TAGRISSO arm2

HR=0.62

(95% CI: 0.48, 0.80); N=5572

PFS rate at 2 years2

62%
for
TAGRISSO + CT (pem/plat)*
(95% CI: 55, 68)

and

47%
for
TAGRISSO
(95% CI: 40, 53)

*TAGRISSO + CT (pem/plat) dosing: In cycles 1-4, TAGRISSO 80 mg po qd + pemetrexed (500 mg/m2) q3w + cisplatin (75 mg/m2) or carboplatin (AUC 5) q3w; in cycles 5+, TAGRISSO 80 mg po qd + pemetrexed maintenance (500 mg/m2) q3w until disease progression or unacceptable toxicity. TAGRISSO dosing: 80 mg po qd until disease progression or unacceptable toxicity.1

Overall PFS maturity by investigator analysis was 51%: TAGRISSO + CT (pem/plat), 43%; TAGRISSO, 60%.2

Overall PFS maturity by BICR analysis was 43%.3

CT (pem/plat), pemetrexed plus platinum-based chemotherapy.

FLAURA2: Statistically significant overall survival data with TAGRISSO + chemotherapy

 

4
years

median overall survival*
(secondary endpoint)

47.5 months (95% CI: 41.0, NC) for TAGRISSO + CT (pem/plat)
vs 37.6 months (95% CI:33.2, 43.2) for TAGRISSO 
HR=0.77 (95% CI: 0.61, 0.96); P=0.02; N=5574

Second interim overall survival analysis curveTAGRISSO® (osimertinib) + CT vs TAGRISSO® monotherapy median PFS graph

OS rates at 24, 36, and 48 months were not powered to show statistical significance

Median follow-up for OS (censored patients): 51.2 months (0.2, 60.4) for TAGRISSO + CT (pem/plat) and 51.3 months (0.1, 60.1) for TAGRISSO

OS rate at 4 years4

49%
for
TAGRISSO + CT (pem/plat)

and

41%
for
TAGRISSO

  • The OS rate was a prespecified exploratory analysis and was not powered to show statistical significance

NCCN
CATEGORY 1 RECOMMENDATION SINCE 2023

First-line osimertinib (TAGRISSO) + pemetrexed + cisplatin or carboplatin is a NCCN Category 1 preferred therapy option in metastatic nonsquamous EGFRm (exon 19 deletion, L858R mutation) NSCLC.5‡

NCCN CATEGORY 1 RECOMMENDATION SINCE 2023

NCCN recommendation

First-line osimertinib (TAGRISSO) + pemetrexed + cisplatin or carboplatin is a NCCN Category 1 preferred therapy option in metastatic nonsquamous EGFRm (exon 19 deletion, L858R mutation) NSCLC.5‡

See the NCCN Guidelines® for detailed recommendations, including other treatment options.

*Overall OS maturity was 57%.4

TAGRISSO + CT (pem/plat) dosing: In cycles 1-4, TAGRISSO 80 mg po qd + pemetrexed (500 mg/m2) q3w + cisplatin (75 mg/m2) or carboplatin (AUC 5) q3w; in cycles 5+, TAGRISSO 80 mg po qd + pemetrexed maintenance (500 mg/m2) q3w until disease progression or unacceptable toxicity. TAGRISSO dosing: 80 mg po qd until disease progression or unacceptable toxicity.1

In first-line locally advanced or metastatic stage EGFRm NSCLC

TAGRISSO + chemotherapy demonstrated consistent PFS results across patient subgroups2*

TAGRISSO® (osimertinib) + CT (pem/plat) vs TAGRISSO® monotherapy PFS results across prespecified patient subgroups
TAGRISSO® (osimertinib) + CT (pem/plat) vs TAGRISSO® monotherapy PFS results across prespecified patient subgroups
  • The exploratory analysis of prespecified patient subgroups was not powered to show statistical significance

*Two additional subgroups that fulfilled regulatory requirements for diagnostics are not included: EGFR mutations by central cobas® tissue test and EGFR mutations by central cobas® ctDNA test.3

Primary endpoint in FLAURA2 was investigator-assessed PFS. Median PFS was 25.5 months (95% CI: 24.7, NE) for TAGRISSO + CT (pem/plat) vs 16.7 months (95% CI: 14.1, 21.3) with TAGRISSO; HR=0.62 (95% CI: 0.49, 0.79); P<0.0001; N=557.1

For EGFR mutation type, patients with both Ex19del and L858R were included in the Ex19del group.6

PFS results by EGFR mutation type at baseline

EXON 19 DELETIONS6*

TAGRISSO + CT (pem/plat) (n=172)

27.9

(95% CI: 25.1, NC)

and

TAGRISSO
(n=169)

19.4

(95% CI: 16.5, 27.6)

months median PFS

HR=0.60 (95% CI: 0.44, 0.83); n=341

EXON 21 L858R MUTATIONS6*

TAGRISSO + CT (pem/plat) (n=106)

24.7

(95% CI: 19.5, 27.4)

and

TAGRISSO
(n=107)

13.9

(95% CI: 11.1, 19.4)

months median PFS

HR=0.63 (95% CI: 0.44, 0.90); n=213

Image Alt Text Image Alt Text
  • This was a prespecified exploratory analysis and was not powered to show statistical significance

*Patients with co-occurring exon 19 deletions and exon 21 L858R mutations were included in the exon 19 deletions group.6

Primary endpoint in FLAURA2 was investigator-assessed PFS. Median PFS was 25.5 months (95% CI: 24.7, NE) for TAGRISSO + CT (pem/plat) vs 16.7 months (95% CI: 14.1, 21.3) with TAGRISSO; HR=0.62 (95% Cl: 0.49, 0.79); P<0.0001; N=557.1

 

PFS results in patients with and without CNS metastases at baseline

  • The presence of CNS metastases at baseline was determined by the investigator and recorded in the eCRF2
  • This was a prespecified exploratory analysis and was not powered to show statistical significance

*Primary endpoint in FLAURA2 was investigator-assessed PFS. Median PFS was 25.5 months (95% CI: 24.7, NE) for TAGRISSO + CT (pem/plat) vs 16.7 months (95% CI: 14.1, 21.3) with TAGRISSO; HR=0.62 (95% CI: 0.49, 0.79); P<0.0001; N=557.1

 

Exploratory analysis: Median PFS results in certain patient subgroups

Site TAGRISSO + CT
(pem/plat)
 (95% CI)
TAGRISSO 
 (95% CI)
HR
(95% CI)
High tumor burden (n=320) 24.9 months
(21.9, 27.6)
16.4 months
(13.6, 19.2)
0.57
(0.43, 0.77)
Low tumor burden (n=237) 27.9 months
(24.7, NC)
30.5 months
(16.6, NC)
0.75
(0.51, 1.11)
Liver metastases (n=109) 19.5 months
(11.5, 24.9)
11.1 months
(8.3, 16.8)
0.66
(0.41, 1.07)
Without liver metastases (n=448) 27.6 months
(24.7, NC)
19.4 months
(15.4, 25.0)
0.63
(0.48, 0.83)
Bone metastases (n=274) 24.9 months
(22.0, NC)
14.2 months
(13.6, 19.4)
0.56
(0.40, 0.77)
Without bone metastases (n=283) 27.6 months
(23.8, NC)
22.1 months
(16.4, NC)
0.70
(0.50, 0.99)
TP53 altered at baseline (n=79) 27.6 months
(24.7, NC)
27.6 months
(13.9, 30.3)
0.57
(0.29, 1.12)
TP53 wild-type at baseline (n=62) NR
(24.7, NC)
NR
(NC, NC)
NC
  • High tumor burden was defined by investigators as patients with ≥3 metastatic sites, and low tumor burden was defined as <3 metastatic sites7
  • Tissue NGS analysis was conducted to identify tumor-specific TP53 status8
  • HR not calculated where there were <20 events across both treatment arms8
  • TP53 alterations excluded variants with unknown oncogenic significance8
  • The post hoc analyses were not powered to show statistical significance

In first-line locally advanced or metastatic EGFRm NSCLC

Duration of response and overall response rates1

OVERALL SURVIVAL RESULTS6

HR=0.75

(95% CI: 0.57, 0.97)

OS data were immature at this interim analysis (41% maturity). The final OS analysis has not yet been formally tested.6

24.9 months (95% CI: 22.1, NE) for TAGRISSO + CT (pem/plat) and 17.9 months (95% CI: 15.2, 20.9) for TAGRISSO

77% (95% CI: 71, 82) for TAGRISSO + CT (pem/plat)
and 69% (95% CI: 63, 74) for TAGRISSO

  • CR: 0.4% for both arms
  • PR: 76% for TAGRISSO + CT (pem/plat) and 68% for TAGRISSO

Median DoR and ORR were prespecified exploratory endpoints and were not powered to show statistical significance

  • CR: 0.4% in both arms
  • PR: 76% in the TAGRISSO + CT (pem/plat) arm and 68% in the TAGRISSO monotherapy arm
  • Median OS, median DoR and ORR were prespecified exploratory endpoints and were not powered to show statistical significance

In first-line locally advanced or metastatic EGFRm NSCLC

CNS response rates in patients with measurable and nonmeasurable CNS metastases at baseline

CNS RESPONSE BY BICR ASSESSMENT IN CNS FULL ANALYSIS SET (cFAS) (EXPLORATORY ENDPOINT)9


 
  • 80

  • 60

  • 40

  • 20

  •  0

Percentage of patients with
objective response

TAGRISSO + CT (pem/plat)
(n=118)

73%

objective response
(95% CI: 64, 81)
14%

partial
response

59%

complete
response

TAGRISSO
(n=104)

 

69%

objective response
(95% CI: 59, 78)
26%

partial
response

43%

complete
response

  • cFAS was a subset of the overall population and included patients with ≥1 measurable (≥10 mm) and/or nonmeasurable CNS lesion at baseline9
  • This was a prespecified exploratory analysis and was not powered to demonstrate statistical significance

*Based on patients with response only; DoR defined as the time from the date of first documented response (complete response or partial response) until progression or death event.

CNS progression-free survival results

42%

Reduction in the risk of CNS progression or death with TAGRISSO + CT (pem/plat) compared to TAGRISSO monotherapy in patients with brain metastases at baseline

HR=0.58 (95% CI: 0.33, 1.01); n=2229

42%

reduction in risk of CNS progression or death
with TAGRISSO + CT (pem/plat) in patients with brain metastases at baseline HR=0.58 (95% CI: 0.33, 1.01); n=2229

*A stable neurological status for ≥2 weeks after completion of definitive treatment and steroids was required before study entry, if received. Partial brain radiotherapy included stereotactic and/or other cranial irradiation that did not cover the whole brain.

CNS response rates in patients with measurable brain metastases at baseline*

CNS RESPONSE BY BICR ASSESSMENT IN CNS EVALUABLE FOR RESPONSE SET (cEFR) (EXPLORATORY ENDPOINT)7

CNS response by BICR assessment in CNS evaluable for response set bar charts

TAGRISSO + CT (pem/plat) (n=38)

Median best percentage change from baseline in CNS target lesion size: -94% (-100% to +7%)

TAGRISSO monotherapy (n=38)

Median best percentage change from baseline in CNS target lesion size: -61% (-100% to +68%)

TAGRISSO + CT (pem/plat) (n=38)Median best percentage change from baseline
in CNS target lesion size: -94% (-100% to +7%)

TAGRISSO monotherapy (n=38)Median best percentage change from baseline in
CNS target lesion size: -61% (-100% to +68%)

CNS response§ cEFR (n=78)1,7
  TAGRISSO + CT (pem/plat) (n=40) TAGRISSO monotherapy (n=38)
CNS ORR (95% Cl) 80% (64, 91) 76% (60, 89)
Complete response 48% 16%
Partial response 33% 61%

*Primary endpoint in FLAURA2 was investigator-assessed PFS. Median PFS was 25.5 months (95% CI: 24.7, NE) for TAGRISSO + CT (pem/plat) vs 16.7 months (95% CI: 14.1, 21.3) with TAGRISSO monotherapy; HR=0.62 (95% CI: 0.49, 0.79); P<0.0001; N=557.1

2 patients had ≥1 measurable CNS lesion at baseline by CNS BICR but died before the follow-up CNS BICR scan.7

In the cEFR, 4/40 patients (10%) in the TAGRISSO + CT (pem/plat) arm and 7/38 patients (18%) in the TAGRISSO monotherapy arm had received prior brain radiotherapy; stable neurological status for ≥2 weeks after completion of local treatment and steroids was required before study entry, if received. No patients with a CNS CR had received prior brain radiotherapy.7

§Responses did not require confirmation per RECIST guidance on randomized studies.7

  • Median CNS PFS was 30.2 months (95% CI: 28.4, NC) for TAGRISSO + CT (pem/plat) and 27.6 months (95% CI: 22.1, NC) for TAGRISSO9
  • Patients with ≥1 measurable and/or nonmeasurable baseline CNS lesion by neuroradiologist CNS BICR were included in the cFAS9
  • The median follow-up for CNS PFS in the cFAS was 20.1 months (0, 33.3) in the TAGRISSO + CT (pem/plat) arm and 13.9 months (0, 33.1) in the TAGRISSO arm. The CNS PFS data maturity was 27%9
  • CNS PFS (BICR-assessed) was a preplanned exploratory endpoint and was not powered to show statistical significance

In first-line locally advanced or metastatic EGFRm NSCLC

FLAURA2 compared TAGRISSO + CT (pem/plat) with TAGRISSO in a phase 3, open-label randomized
controlled trial1,2

In a phase 3, open label, randomized control trial

FLAURA2 study design

Brain scans were required for all patients at baseline and evaluated by blinded independent central review9

Primary efficacy outcome measure: PFS by investigator assessment1

Key secondary endpoints: Overall survival, overall response rate, and DoR1

Key exclusion criteria: Spinal cord compression; symptomatic and unstable brain metastases; history of ILD, QT prolongation, or any clinically important abnormalities in rhythm, conduction, or morphology of resting ECG10

  • PFS2 data were not yet mature at the time of data cutoff (April 3, 2023)5
    • PFS2 measures the time from study randomization until disease progression on second-line therapy or death from any cause

*3 patients in each arm were randomized to either treatment arm, but received no study treatment.2

Not requiring steroids for at least 2 weeks.9

*3 patients in each arm were randomized to either treatment arm, but received no study treatment.2

Not requiring steroids for at least 2 weeks.9

FLAURA2 included patients with a range of clinicopathologic profiles, including CNS metastases at baseline

Characteristics* TAGRISSO +
CT (pem/plat)
(n=279)
TAGRISSO
(n=278)
Median age (range) 61 years (26-83) 62 years (30-85)
Female 62% 61%
Race: Asian Chinese/Asian non-Chinese/non-Asian/missing 25%/39%/35%/<1% 25%/38%/36%/1%
Former smokers 31% 33%
Never smokers 67% 65%
WHO PS 0/1 37%/62% 37%/63%
Histology
Adenocarcinoma 99% 99%
Adenosquamous 1% 0%
Other 1% 1%
CNS metastases 42% 40%
Extrathoracic metastases§ 53% 54%
EGFR mutation||
Ex19del 61% 60%
L858R 38% 38%
Characteristics* TAGRISSO + CT (pem/plat) (n=279) TAGRISSO
(n=278)
Median age
(range)
61 years (26-83) 62 years
(30-85)
Female 62% 61%
Race: Asian Chinese/Asian
non-Chinese/non-Asian/missing
25%/39%/
35%/<1%
25%/38%/36%
/1%
Former smokers 31% 33%
Never smokers 67% 65%
WHO PS 0/1 37%/62% 37%/63%
Histology
Adenocarcinoma 99% 99%
Adenosquamous 1% 0%
Other 1% 1%
CNS metastases 42% 40%
Extrathoracic
metastases§
53% 54%
EGFR mutation||
Ex19del 61% 60%
L858R 38% 38%

*Percentages calculated and rounded to nearest whole number.3

3 patients in each arm were randomized to either treatment arm, but received no study treatment.3

One patient had a WHO PS score of 2 on day 1 of cycle 1 (attributed to mobility issues). This condition was transient and 15 days later (on day 1 of cycle 2), the patient’s score was 1.2

§Extrathoracic metastases were determined programmatically from baseline data in which the disease site was described by AstraZeneca physicians.2

IICentral and local EGFR mutation test; 3 patients in the TAGRISSO + CT (pem/plat) arm and 1 patient in the TAGRISSO arm had both Ex19del and L858R mutations; 1 patient in the TAGRISSO + CT (pem/plat) arm and 2 patients in the TAGRISSO arm had unknown/not detected EGFR mutations. For EGFR mutation type, patients with both Ex19del and L858R were included in the Ex19del group.3,6