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PARAMOUNT: phase III study of pemetrexed continuation maintenance therapy in advanced non-squamous NSCLC.

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Presentation on theme: "PARAMOUNT: phase III study of pemetrexed continuation maintenance therapy in advanced non-squamous NSCLC."— Presentation transcript:

1 PARAMOUNT: phase III study of pemetrexed continuation maintenance therapy in advanced non-squamous NSCLC.

2 All Chapters at a glance: please click on box to review
Maintenance strategies in non-squamous NSCLC 1 PARAMOUNT: study design and objectives 2 PARAMOUNT: patient & disease characteristics, drug administration 3 PARAMOUNT: PFS results 4 PARAMOUNT: post-discontinuation therapy 5 PARAMOUNT: safety & tolerability 6 PARAMOUNT: conclusions 7

3 Increase the duration of disease control
Objectives of maintenance therapy1 Maintaining tolerability Improve overall survival

4 Tolerance to maintenance drug is known from induction treatment
Maximise the potential of the drug used in 1st-line Potential advantages of continuation maintenance approach2–4 Saves a drug for subsequent treatment lines

5 PARAMOUNT: pemetrexed/cisplatin followed by pemetrexed for advanced non-squamous* NSCLC1
2:1 randomisation pemetrexed† 500 mg/m2 IV + BSC day 1, q 21 days; n=359 pemetrexed 500 mg/m2 IV + cisplatin 75 mg/m2 day 1, q 21 days; n=939 Non-squamous* NSCLC patients only CR, PR, or SD after 4 cycles of pemetrexed/cisplatin n=539 progressive disease placebo† + BSC day 1, q 21 days; n=180 *Adenocarcinoma, large cell carcinoma and other histologies † Vitamin B12, folic acid and dexamethasone given during induction therapy and in both maintenance arms. BSC=Best Supportive Care Patients enrolled if: • non-squamous* NSCLC • no prior systemic treatment for lung cancer • ECOG PS 0/1 Stratified for: • PS (0 vs 1) • disease stage (IIIB vs IV) prior to induction • response to induction (CR/PR vs SD)

6 PARAMOUNT: study objectives1
• Progression-free survival (PFS) Primary objective Secondary objectives • Overall survival (OS) • Objective tumour response rate (RR) (RECIST 1.0) • Patient-reported outcomes (EQ-5D) • Resource utilisation • Adverse events (AEs)

7 PARAMOUNT: patient characteristics (randomised patients)1
placebo n=180 Median age, yrs Age <65 yrs Male Caucasian Smoker Ever smoker Never smoker ECOG PS 1 2/3* *Protocol violations 238 (66%) 201 (56%) 339 (94%) 275 (77%) 82 (23%) 115 (32%) 243 (68%) (<1%) 112 (62%) 171 (95%) 144 (80%) 34 (19%) 55 (31%) 123 2 (1%) pemetrexed n=359 61 62 Caucasian 339 (94%) 171 (95%)

8 PARAMOUNT: disease characteristics (randomised patients)1
placebo n=180 Disease stage IV* Histology Adenocarcinoma/bronchoalveolar Large cell Other non-squamous Best tumour response to induction CR/PR SD PD/Unknown† * Lung Cancer Staging System Version V † Protocol violations pemetrexed n=359 328 310 24 25 166 186 7 (91%) (86%) (7%) (46%) (52%) (2%) 161 160 12 8 76 94 10 (89%) (4%) (42%) (6%) Disease stage IV* (91%) (89%) Adenocarcinoma/bronchoalveolar (86%) (89%)

9 PARAMOUNT: drug administration (randomised patients)1
Data related to the primary endpoint (PFS) data analysis. Figures are likely to change at the time of the final OS analysis. pemetrexed n=359 placebo n=180 mean # of cycles patients > 6 cycles dose intensity 4.9 4.2 23% 14% 95% n.a.

10 Induction = 4 cycles of pemetrexed/cisplatin
Pemetrexed continuation maintenance demonstrated significant PFS benefit for patients1 Progression-free survival (%) Time (months) 3 6 9 12 15 1.0 0.8 0.9 0.7 0.6 0.5 0.4 0.3 0.2 0.1 Investigator-assessed PFS Induction = 4 cycles of pemetrexed/cisplatin NOT reflected in the data endpoints pemetrexed + BSC (n=359) placebo + BSC (n=180) HR=0.62 (95% CI 0.49–0.79); p<0.0001 BSC=Best Supportive Care Median PFS (95% CI) Pemetrexed 4.1 ( ) Placebo 2.8 ( ) 4.1 2.8 HR 0.62 reduction in the risk of progression 38%

11 Induction = 4 cycles of pemetrexed/cisplatin
Pemetrexed continuation maintenance demonstrated significant PFS benefit for patients1 Progression-free survival (%) Time (months) 3 6 9 12 15 1.0 0.8 0.9 0.7 0.6 0.5 0.4 0.3 0.2 0.1 Independently reviewed PFS† Induction = 4 cycles of pemetrexed/cisplatin NOT reflected in the data endpoints pemetrexed + BSC (n=316) placebo + BSC (n=156) HR=0.64 (95% CI 0.51–0.81); p<0.0002 † 88% of patients were independently reviewed (472/539); BSC=Best Supportive Care Median PFS (95% CI) Pemetrexed 3.9 (3.0–4.2) Placebo 2.6 (2.2–2.9) 3.9 2.6 HR 0.64

12 Progression-free survival HRs in subgroups1
All Stage IIIB IV Induction response CR/PR SD Pre-randomisation ECOG PS 1 Smoking status Non-smoker Smoker Sex Male Female Age (years) <70 ≥70 <65 ≥65 Histology Adenocarcinoma Large Cell Carcinoma Other 0.62 ( ) 0.55 ( ) 0.62 ( ) 0.48 ( ) 0.74 ( ) 0.53 ( ) 0.67 ( ) 0.41 ( ) 0.70 ( ) 0.74 ( ) 0.49 ( ) 0.69 ( ) 0.35 ( ) 0.70 ( ) 0.51 ( ) 0.39 ( ) 0.64 ( ) 0.2 0.4 0.8 1.2 1.6 2.0 0.6 1.4 1.8 Favours pemetrexed Favours placebo 539 50 489 242 280 170 366 116 419 313 226 447 92 350 189 471 36 32 HR (95% CI) N Progression-free survival HRs in subgroups1 PFS results were internally consistent; benefit was seen across all subgroups

13 PARAMOUNT: median PFS according to response to induction treatment1
Survival time (months) 1 2 3 5 Response to induction treatment Complete/Partial response n=242, HR=0.48, ( ) Stable disease n=280, HR=0.74, ( ) 4 Numbers in brackets are the 95% CI values. pemetrexed (n=166) pemetrexed (n=186) 4.1 ( ) 4.1 ( ) placebo (n=76) placebo (n=94) 2.6 ( ) 3.0 ( )

14 PARAMOUNT: post-discontinuation therapy (PDT-eligible patients)1
placebo n=122 78 (64%) 45 (37%) 43 (35%) 4 (3%) 2 (2%) 1 (<1%) 6 (5%) Patients with PDT Drug name Erlotinib Docetaxel Gemcitabine Investigational drug Vinorelbine Bevacizumab Cisplatin Other† p-value 0.35 0.33 0.27 0.15 0.58 1.00 pemetrexed n=200 116 (58%) 62 (31%) 58 (29%) 15 (8%) 10 8 (4%) 3 13 (7%) † Systemic therapies administered to 1% or fewer patients in both groups are summarised under “Other”. These therapies included carboplatin, pemetrexed, BIBF 1120, paclitaxel, placebo, aspirin, aflibercept, cyclophosphamide, gefitinib, ifosfamide, vinflunine, and other antineoplastic drugs. (58%) (64%)

15 Maintenance therapy with pemetrexed: generally well tolerated1
Overall, toxicity was low in both arms pemetrexed n=359 placebo n=180 Patients with ≥ 1 grade 3/4/5 laboratory toxicity 9%* n=33 <1%* n=1 Patients with ≥ 1 grade 3/4/5 non-laboratory toxicity 9% n=32 4% n=8 * Difference between treatment groups was significant (Fisher’s exact test p ≤0.05).

16 PARAMOUNT: CTCAEs grade 3/4/5 drug-related toxicities (randomised patients)1†
* Difference between treatment groups was significant (Fisher’s exact test p≤0.05). † Adverse events were reported using Common Terminology Criteria for Adverse Events version 3.0 (NCI 2006) Alanine aminotransferase, Nausea, Vomiting, Mucositis or Stomatitis, Oedema, Anorexia, Diarrhoea, Watery eye, Constipation Grade 3/4/5 adverse events were reported for less than 1% of patients. placebo (n=180) Anaemia Neutropenia Fatigue Pain Leucopenia Thrombocytopenia Infection Neuropathy pemetrexed (n=359) 10 20 30 4%* n=16 4%* n=13 2% n=6 1% n=4 4%* n=15 1% n=3 1% n=4 <1% n=1 <1%* n= 1 0%* n= 0 0% n=0 <1%* n= 1 1% n=2 0% n=0 <1% n=1

17 PARAMOUNT: health-related quality of life assessment (EQ-5D)1
Compliance at all time points during maintenance phase was >80% No statistical differences in EQ-5D index score or visual analog scale were observed between treatment arms EQ-5D results suggest that patients can tolerate long-term maintenance treatment with pemetrexed while maintaining their QoL

18 PARAMOUNT: conclusions1,10
PARAMOUNT demonstrates a positive risk/benefit ratio for the administration of pemetrexed continuation maintenance1,10 Pemetrexed continuation maintenance therapy offers significantly improved PFS Pemetrexed continuation maintenance therapy is well tolerated

19 Pemetrexed continuation maintenance therapy: approach to maximise outcomes for patients1,2
Proven efficacy ✔ Acceptable toxicity ✔ Conveniently administered ✔ Keeps other treatments available ✔

20 Acknowledgements We thank all of the patients and their caregivers
for participating in this trial.

21 References Paz-Ares L et al. Maintenance therapy with pemetrexed plus best supportive care versus placebo plus best supportive care after induction therapy with pemetrexed plus cisplatin for advanced non-squamous non-small-cell lung cancer (PARAMOUNT): a double-blind, phase 3, randomised controlled trial. Lancet Oncol 2012; 13: Stinchcombe TE, Socinski MA. Treatment paradigms for advanced stage non-small cell lung cancer in the era of multiple lines of therapy. J Thorac Oncol 2009;4:243–50. Novello S et al. Maintenance therapy in NSCLC: why? To whom? Which agent? J Exp Clin Cancer Res 2011;30:50. Fidias P, Novello S. Strategies for prolonged therapy in patients with advanced non–small-cell lung cancer. J Clin Oncol. 2010;28: Azzoli CG, Temin S, Aliff T, et al Focused Update of 2009 American Society of Clinical Oncology Clinical Practice Guideline Update on Chemotherapy for Stage IV Non-Small-Cell Lung Cancer. J Clin Oncol Sep 6.[Epub ahead of print]. D’Addario G, Felip E. Non-small-cell lung cancer: ESMO clinical recommendations for diagnosis, treatment and follow-up. Ann Oncol 2009;20:iv68–iv70. National Comprehensive Cancer Network. NCCN Clinical Practice Guidelines in Oncology: Non-Small Cell Lung Cancer V Fort Washington, PA: NCCN, 2011. Scagliotti GV et al. Phase III study comparing cisplatin plus gemcitabine with cisplatin plus pemetrexed in chemotherapy-naive patients with advanced-stage non-small-cell lung cancer. J Clin Oncol. 2008;26: Ciuleanu T et al. Maintenance pemetrexed plus best supportive care for non-small-cell lung cancer: a randomized, double-blind, phase 3 study. Lancet 2009;347: ALIMTA Summary of Product Characteristics. Eli Lilly and Company Limited. November 2011.


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