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O. Molinier



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    MO08 - NSCLC - Early Stage (ID 117)

    • Event: WCLC 2013
    • Type: Mini Oral Abstract Session
    • Track: Medical Oncology
    • Presentations: 1
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      MO08.02 - Adjuvant pazopanib or placebo in resected stage I NSCLC patients: results of the NSCLC adjuvant randomized phase II trial (IFCT-0703) from the French collaborative Intergroup (ID 2274)

      16:15 - 17:45  |  Author(s): O. Molinier

      • Abstract
      • Presentation
      • Slides

      Background
      Although UFT is approved in eastern countries, most guidelines do not recommend any adjuvant treatment in resected Stage I NSCLC. Pazopanib (P) is a potent, orally active multi-target receptor tyrosine kinase inhibitor of VEGFR-1, -2, -3, platelet derived growth factor (PDGFR) type-α and –β, approved in metastatic renal cell carcinoma and sarcoma. Neoadjuvant P demonstrated single-agent activity in patients with early stage NSCLC. We report the feasibility and tolerance of adjuvant P in stage I NSCLC.

      Methods
      In this double-blind randomized multicenter phase II/III trial, completely resected patients (pts) with stage I NSCLC (7[th] TNM edition) were randomized to receive either placebo or P 800 mg/d during 6 months. The Fleming’s two stage phase II primary endpoint was compliance (i.e. % of pts able to receive at least 3 months of P, whatever the dose). After 64 pts included (interim analysis), IDMC recommended to start with P 400 mg/d because of initial insufficient compliance. A one-step Fleming design was used with the new dose. Phase II design was not comparative.

      Results
      143 pts were randomized in 29 centers between March 2009 and August 2012, 71 and 72 in the placebo and P arms respectively. Most pts were male (61%) and smokers (91%), median age was 60. Pathological stage was IA in 111 pts (78%) and 16% were squamous cell carcinomas. Compliance for P800 was adequate in 38% (95% confidence interval [21-56]) vs. 87% [71-96] in placebo; for P400 in 69% [50-84] (p=0.01, compared to P800) vs. 93% [77-99] in placebo. Dose modifications were seen in 44% and 34% of P800 and P400 groups. The proportion of patient with at least one grade 3/4 toxicity was 53% [35-71] in P800 (13% [4-29] for placebo) and 38% [21-56] in P400 (27% [12-46] for placebo). No toxic deaths were observed. Only 2 pts has grade 4 toxicities in P800 (fatigue in P arm, GGT in the placebo arm). Most common toxicities G3 in P800 were diarrhea (9%), hypertension (9%), and increased transaminases (16% vs. 0% in P400); in P400 gastro-intestinal disorders (16%, 6% diarrhea) and hypertension (6%).

      Conclusion
      IFCT-0703 is the first feasibility study demonstrating that full dose of P is safe but not feasible in the adjuvant setting in NSCLC. Compliance and tolerance with reduced dose appeared acceptable for adjuvant settings.

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    P2.08 - Poster Session 2 - Radiotherapy (ID 198)

    • Event: WCLC 2013
    • Type: Poster Session
    • Track: Radiation Oncology + Radiotherapy
    • Presentations: 1
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      P2.08-019 - Palliative radiation during pemetrexed plus cisplatin first-line treatment or pemetrexed continuation maintenance treatment in advanced nonsquamous non-small cell lung cancer (NSCLC): A report of patient safety in the PARAMOUNT trial (ID 2364)

      09:30 - 16:30  |  Author(s): O. Molinier

      • Abstract

      Background
      Patient (pt) safety is of utmost concern to radiation oncologists. Pemetrexed (Pem) is an effective and well-tolerated treatment for advanced nonsquamous NSCLC. The safety of palliative radiation (XRT) during Pem treatment was studied in this subset of pts in the PARAMOUNT trial.

      Methods
      In PARAMOUNT, a randomized, double-blind study, 939 pts received 4 cycles of induction Pem (500 mg/m[2]) + cisplatin (Cis) (75 mg/m[2]) on day 1 every 21 days. Patients without progressive disease (PD) and with an Eastern Cooperative Oncology Group performance status (ECOG PS) of 0/1 (n=539) were then randomized (2:1) to maintenance Pem (500 mg/m[2], day 1) + best supportive care (BSC) (Arm A) or placebo + BSC (Arm B) until PD. Best supportive care (BSC) was defined as treatment without a specific antineoplastic regimen and included palliative XRT to extrathoracic structures. Safety was assessed via the incidence of adverse events (AEs) by maximum grade (Gr; CTCAE, v3).

      Results
      The 55 pts who received palliative XRT to extrathoracic structures during treatment had stage IV nonsquamous NSCLC. The majority of pts were male (58%), with an ECOG PS of 1 (75%). Patients’ median age was 61 yrs (range, 32-74) yrs, with 13% of pts ≥70 yrs. The most common location irradiated was bone (43/55 pts). Non-bone locations were: lymph node (3), mediastinum (2), chest (2), and adrenal gland, intraocular, lung, brain, and abdomen (1 each). Forty-five pts received XRT during Pem+Cis induction, 3 of whom also received XRT during maintenance. Seven pts (Arm A) and 6 pts (Arm B) received palliative XRT during maintenance. Total XRT doses ranged from 8-66 Gy. The time interval between day 1 of last chemotherapy cycle and the start of palliative XRT ranged from 0-28 days. Of 55 pts, 12 (22%) had ≥1 AE(s) during XRT considered possibly related to Pem and/or XRT (Table 1). All pts except 1 experienced the AE during induction. The most common AE was Gr 2 anemia. Three pts had Gr 3/4 anemia. Five pts had nonhematologic toxicities. One pt in Arm B, who received a total dose of 20 Gy in the hip during maintenance treatment, had pneumonitis. No AEs were reported for pts who received palliative XRT during Pem maintenance treatment.

      Table 1: AEs during palliative XRT or within 2 weeks after the end of the last fraction in both phases of the PARAMOUNT trial.
      Pts receiving palliative XRT (N=55)
      Patients with AEs during induction and/or maintenance (n=12, 22%)
      Toxicity Gr 1, n (%) Gr 2, n (%) Gr 3-4, n (%)
      Hematologic
      Hemoglobin 1 (1.8) 4 (7.3) 3 (5.5)
      Leukocytes 0 2 (3.6) 1 (1.8)
      Platelets 0 1 (1.8) 0
      Nonhematologic
      Rash/dermatitis 1 (1.8) 1 (1.8) 0
      Rash/desquamation 1 (1.8) 1 (1.8) 0
      Pneumonitis 0 0 1 (1.8)*
      *Pneumonitis was the only event reported for a pt during the maintenance phase. The pt was assigned to placebo.

      Conclusion
      Conclusions: In PARAMOUNT, palliative XRT is well tolerated and can be safely administered at low and high doses during Pem+Cis chemotherapy or Pem monotherapy to pts with advanced nonsquamous NSCLC.