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Established efficacy of Avastin plus IFN in mRCC

Avastin plus IFN improved median progression-free survival (PFS) by 89% and more than doubled objective response rate (ORR) vs placebo plus IFN in AVOREN1

Avastin plus IFN improved median PFS by 89% over placebo plus IFN (10.2 months vs 5.4 months, hazard ratio [HR]=0.60, P<0.0001)1

Median PFS

  • CI=confidence interval.
  • PFS benefit of Avastin plus IFN was observed as early as 2 months and was sustained through the duration of the study1,2

  • Median overall survival (OS) with Avastin plus IFN was 23 months, a nonsignificant increase vs placebo plus IFN (21 months, HR=0.86, P=0.1291)1,3

Avastin plus IFN more than doubled ORR vs placebo plus IFN (30% vs 12%, P<0.0001), as confirmed by an independent review facility1,3,4

Avastin + IFN more than doubled ORR vs placebo + IFN in AVOREN

  • Duration of response was longer with Avastin plus IFN (13.5 months, n=306) compared with placebo plus IFN (11.1 months, n=289)2
  • PFS and ORR were investigator-assessed in AVOREN. Independent review facility assessments of PFS and ORR were similar to investigator results.3
  • AVOREN protocol allowed for IFN dose escalation, reduction, or discontinuation2,4

Boxed WARNINGS

  • Gastrointestinal (GI) perforation
    • Serious and sometimes fatal GI perforation occurs at a higher incidence (up to 2.4%) in Avastin-treated patients compared to controls. Discontinue Avastin for GI perforation
  • Surgery and wound healing complications
    • The incidence of wound healing and surgical complications, including serious and fatal complications, is increased in Avastin-treated patients
    • Discontinue in patients with wound dehiscence. Discontinue at least 28 days prior to elective surgery
    • Do not initiate Avastin for at least 28 days after surgery and until the surgical wound is fully healed
  • Hemorrhage
    • Severe or fatal hemorrhage, hemoptysis, GI bleeding, CNS hemorrhage, and vaginal bleeding are increased in Avastin-treated patients. Do not administer Avastin to patients with serious hemorrhage or recent hemoptysis

NCCN recognizes bevacizumab plus IFN as category 1 first-line therapy for mRCC5

NCCN RCC guidelines

  • NCCN=National Comprehensive Cancer Network.
Indication

Avastin is indicated for the treatment of metastatic renal cell carcinoma in combination with interferon alfa.

Boxed WARNINGS
  • Gastrointestinal (GI) perforation
    • Serious and sometimes fatal GI perforation occurs at a higher incidence in Avastin-treated patients compared to controls
    • The incidences of GI perforation ranged from 0.3% to 2.4% across clinical studies
    • Discontinue Avastin in patients with GI perforation
  • Surgery and wound healing complications
    • The incidence of wound healing and surgical complications, including serious and fatal complications, is increased in Avastin-treated patients
    • Do not initiate Avastin for at least 28 days after surgery and until the surgical wound is fully healed. The appropriate interval between termination of Avastin and subsequent elective surgery required to reduce the risks of impaired wound healing/wound dehiscence has not been determined
    • Discontinue Avastin at least 28 days prior to elective surgery and in patients with wound healing complications requiring medical intervention
  • Hemorrhage
    • Severe or fatal hemorrhage, including hemoptysis, GI bleeding, hematemesis, central nervous system hemorrhage, epistaxis, and vaginal bleeding, occurred up to 5-fold more frequently in patients receiving Avastin. Across indications, the incidence of grade ≥3 hemorrhagic events among patients receiving Avastin ranged from 1.2% to 4.6%
    • Do not administer Avastin to patients with serious hemorrhage or recent hemoptysis (≥1/2 tsp of red blood)
    • Discontinue Avastin in patients with serious hemorrhage (ie, requiring medical intervention)
Additional serious adverse events
  • Additional serious and sometimes fatal adverse events with increased incidence in the Avastin-treated arm vs control included
    • Non-GI fistula formation (≤0.3%)
    • Arterial thromboembolic events (grade ≥3, 2.4%)
    • Proteinuria including nephrotic syndrome (<1%)
  • Additional serious adverse events with increased incidence in the Avastin-treated arm vs control included
    • Hypertension (grade 3–4, 5%–18%)
    • Reversible posterior leukoencephalopathy syndrome (RPLS) (<0.1%)
  • Infusion reactions with the first dose of Avastin were uncommon (<3%), and severe reactions occurred in 0.2% of patients
  • Inform females of reproductive potential of the risk of ovarian failure prior to starting treatment with Avastin
Most common adverse events
  • Most common adverse reactions observed in Avastin patients at a rate >10% and at least twice the control arm rate were
    – Epistaxis
    – Headache
    – Hypertension
    – Rhinitis
    – Proteinuria
    – Taste alteration
    – Dry skin
    – Rectal hemorrhage
    – Lacrimation disorder
    – Back pain
    – Exfoliative dermatitis
  • Across all studies, Avastin was discontinued in 8.4% to 21% of patients because of adverse reactions
Pregnancy warning
  • Avastin may impair fertility
  • Based on animal data, Avastin may cause fetal harm
  • Advise patients of the potential risk to the fetus during and following Avastin and the need to continue adequate contraception for at least 6 months following the last dose of Avastin
  • For nursing mothers, discontinue nursing or Avastin, taking into account the importance of Avastin to the mother
  • In mRCC, the most common grade 3–5 adverse events in AVOREN, occurring at a ≥2% higher incidence in Avastin-treated patients vs controls, were fatigue (13% vs 8%), asthenia (10% vs 7%), proteinuria (7% vs 0%), hypertension (6% vs 1%), and hemorrhage (3% vs 0.3%)

Please see full Prescribing Information, including Boxed WARNINGS, for additional important safety information.

Next: AVOREN Study Design

References:
  1. Avastin Prescribing Information. Genentech, Inc. September 2011.
  2. Escudier B, Pluzanska A, Koralewski P, et al. Lancet. 2007;370:2103-2111.
  3. Escudier B, Bellmunt J, Negrier S, et al. Slides presented at: Annual Meeting of the American Society of Clinical Oncology; May 29–June 2, 2009; Orlando, FL.
  4. Data on file. Genentech, Inc.
  5. The NCCN Kidney Cancer Clinical Practice Guidelines in Oncology (Version 1.2011). ©2010 National Comprehensive Cancer Network, Inc. http://www.nccn.org. Accessed December 2, 2010.