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DRUG POLICY OF THE EUROPEAN UNION

SILVIO GARATTINI. DRUG POLICY OF THE EUROPEAN UNION. SIVIGLIA 15 May 2007. BIAS IN CLINICAL TRIALS. EUROPEAN LEGISLATION. Institutional location Industry, consumers or public health?. Quality, efficacy, safety Necessary, not always sufficient. CONFIDENTIALITY. IS JUSTIFIED?

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DRUG POLICY OF THE EUROPEAN UNION

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  1. SILVIO GARATTINI DRUG POLICY OF THE EUROPEAN UNION SIVIGLIA 15 May 2007

  2. BIAS IN CLINICAL TRIALS • EUROPEAN LEGISLATION

  3. Institutional location Industry, consumers or public health?

  4. Quality, efficacy, safety • Necessary, not always sufficient

  5. CONFIDENTIALITY • IS JUSTIFIED? • MINORITY POSITION • REASONS FOR WITHDRAWAL • RESULTS OF COMMITTMENTS

  6. ADDED VALUE • TOO MANY TRIALS USE PLACEBO OR NO-CONTROLS

  7. ADDED VALUE • TOO MANY TRIALS USE PLACEBO OR NO-CONTROLS • WHEN COMPARISONS ARE MADE DESIGNS OF EQUIVALENCE OR NON INFERIORITY ARE

  8. ADDED VALUE • TOO MANY TRIALS USE PLACEBO OR NO-CONTROLS • WHEN COMPARISONS ARE MADE DESIGNS OF EQUIVALENCE OR NON INFERIORITY ARE • SELECTION OF COMPARATOR IS FREQUENTLY INADEQUATE

  9. ADDED VALUE • TOO MANY TRIALS USE PLACEBO OR NO-CONTROLS • WHEN COMPARISONS ARE MADE DESIGNS OF EQUIVALENCE OR NON INFERIORITY ARE • SELECTION OF COMPARATOR IS FREQUENTLY INADEQUATE • FOCUS ON SELECTED ADVERSE REACTIONS

  10. ADDED VALUE • TOO MANY TRIALS USE PLACEBO OR NO-CONTROLS • WHEN COMPARISONS ARE MADE DESIGNS OF EQUIVALENCE OR NON INFERIORITY ARE • SELECTION OF COMPARATOR IS FREQUENTLY INADEQUATE • FOCUS ON SELECTED ADVERSE REACTIONS • SMALL ADVANTAGES FOR NIGH PRICES

  11. 18 ANTICANCER AGENTS 21 INDICATIONS 12 ONLY PHASE II 9 PHASE III 6 EQUIVALENCE OR NON INFERIORITY 3 SUPERIORITY

  12. APOLONE et al., 2005

  13. APOLONE et al., 2005

  14. APOLONE et al., 2005

  15. EQUIVALENCE

  16. OUT OF 383 CLINICAL TRIALS 64 % COULD DETECT A DIFFERENCE > 50 % 84 % COULD DETECT A DIFFERENCE > 25 % MOHER et al., 1994

  17. BIOTECH SUBSTANCES APPROVED IN 1995-2003 65 DIAGNOSTICS 4 UNDER EXCEPTIONAL CIRCUMSTANCES 10 (6) 61 (15) WITHOUT DOSE-FINDING 33 (8) WITH RCT 46 (11) alemtuzumab, beclapermin, eptotermin alpha, human protein C, interferon beta Ib, laronidase, rituximab, trastuzumab PLACEBO CONTROLLED 16 (5) WITH ACTIVE COMPARATOR 30 (5) algasidase beta, basilkiximab, infliximab, interferon beta-1b, laronidase becaplermin, desirudin, rasburicase, trastuzumab, eptotermin alfa EQUIVALENCE/ NON-INFERIORITY 17 (1) SUPERIORITY 13 (4) WITH HARD ENDPOINTS 8 (4) basiliximab, becaplermin, desirudin, infliximab eptotermin alfa becaplermin, desirudin, rasburicase, trastuzumab becaplermin, desirudin 2 (2)

  18. TACROLIMUS VS CYCLOSPORINE 32.5 % 51.3 % ACUTE REJECTIONS ACUTE RENAL REJECTIONS ARE MINIMIZED WHEN TROUGH LEVELS ARE KEPT BETWEEN 330 - 430 ng/ml MARGREITER et al., 2002 TRIAL CYCLOSPORINE < 300 ng/ml

  19. Rabinowitz et al., 2001

  20. ≤ 12 mg haloperidol > 12 mg haloperidol -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 Favours atypical Favours haloperidol Drop out rates by dose of comparator drug in trials of patients with schizophrenia or related disorders (risk difference and 95 % confidence intervals) Geddes et al., 2000

  21. ATYPICAL ANTIPSYCHOTICS THE REDUCED EFFECT ON EPS IS THE FOCUS OF ADVERTISEMENT WEIGHT GAIN AND PROPENSITY TO DIABETES ?

  22. OLANZAPINE vs PERPHENAZINE PARAMETER NEUROLOGIC EFFECTS 14% 17%0 WEIGHT GAIN 30% 12%0 BLOOD GLUCOSE (CHANGE) 15 ± 20 5.2 ± 200 GLYCOSYLATED Mb 00.4 ± 0.09 0.1 ± 0.06 CHOLESTEROL (CHANGE) 9.7 ± 2.2 0.5 ± 2.30 TRIGLYCERIDES (CHANGE) 42 ± 8 8 ± 11 CATIE, 2005

  23. IF 4 MILLIONS SCHIZOPHRENIC PEOPLE WERE TREATED WITH ANTIPSYCHOTIC AGENTS CONFERRING A MEAN WEIGHT GAIN OF 4 Kg OVER A PERIOD OF 10 YEARS IN COMPARISON WITH A DRUG WITH LITTLE EFFECT ON BODY WEIGHT • ADDITIONAL 24,560 DEATHS • ADDITIONAL 92,720 CASES OF IMPAIRED GLUCOSE TOLERANCE • ADDITIONAL 120,760 CASES OF HYPERTENSION • FONTAINE et al., 2001

  24. Cumulative Incidence of the Primary End Point of a Confirmed Upper Gastrointestinal Event among All Randomized Patients. Vigor Study Group. N Engl J Med 2000

  25. Time to cardiovascular adverse events in the VIGOR trial Mukherjee et al, JAMA, 2001

  26. Cumulative meta-analysis of randomised trials comparing rofecoxib with control Risk of cardiovascular events and rofecoxib: cumulativemeta-analysis. Peter Jüni et al, Lancet 2004

  27. For newly licensed drugs, confidence about safety can only be provisional • Rofecoxib • at the time of marketing approval (1999): • safety data based on 5,000 patients • at the time of withdrawal (2004): • given daily to 2,000,000 patients • (sales in 2003 US $ 2.5 billion)

  28. CARDIOVASCULAR TOXICITY DICLOFENAC 1 COXIBs 0.92* (0.81-1.05) * 26 RCT Psaty and Weiss, 2007

  29. CARDIOVASCULAR TOXICITY NAPROXEN 1 COXIBs 1.57* (1.21-2.03) * 42 RCT Psaty and Weiss, 2007

  30. BEVACIZUMAB RECOMBINANT HUMANISED MONOCLONAL lgG1 ANTIBODY IS AN INHIBITOR OF h VEGF (ANGIOGENESIS). LICENSED IN COMBINATION WITH i.v. 5Fu/FA + IRINOTECAN FOR FIRST-LINE TREATMENT OF METASTATIC COLORECTAL CARCINOMA. DOSE: 5 mg/kg i.v. ONCE EVERY 14 days 100 mg 0306.76 € 400 mg 1224.55 € TOTAL COURSE AVERAGE 18.2 DOSES = 21,285.9 €

  31. BEVACIZUMAB OUTCOME +FU/FA +FU/FA +BEVACIZUMAB MEDIAN OVERALL SURVIVAL n = 209 13.2 mo. 16.6 mo. NS n = 071 13.6 mo. 17.7 mo. NS PROGRESSION FREE SURVIVAL n = 209 5.5 mo. 9.2 mo. S n = 071 5.2 mo. 9.0 mo. S TUMOR RESPONSE RATE n = 209 15.2 % 25.2 % S n = 071 16.7 % 40.0 % NS METASTATIC COLORECTAL CARCINOMA

  32. BEVACIZUMAB OUTCOME IFL IFL- BEVACIZUMAB MEDIAN OVERALL SURVIVAL 15.6 mo. 20.3 mo. n=8P3 PROGRESSION FREE SURVIVAL 06.2 mo. 10.6 mo. TUMOR RESPONSE RATE 34.8 % 44.8 % METASTATIC COLORECTAL CANCER

  33. BEVACIZUMAB TREATMENT GRADE 3-4 GRADE 3-4 ADVERSE REACTIONS HYPERTENSION IFL 74.0 % 02.3 % IFL+BEVACIZUMAB 84.9 % 11.0 % 5FU/FA 71.0 % 03.0 % 5FU/FA+BEVACIZUMAB 87.0 % 16.0 %

  34. Paclitaxel-Carboplatin Alone or with Bevacizumab for Non-Small-Cell Lung Cancer Sandler et al. N Engl J Med 2006;355:2542-50 Conclusions The addition of bevacizumab to paclitaxel plus carboplatin in the treatment of selected patients with non-small-cell lung cancer has a significant survival benefit with the risk of increased treatment-related deaths. (ClinicalTrials.gov number, NCT00021060.)

  35. Script 23 April 2007

  36. PACLITAXEL-CARBOPLATIN ± BEVACIZUMAB Sandler et al., NEJM 2006, 355, 2542 SURVIVAL BENEFIT 12 Pts MUST BE TREATED TO HAVE 1 MORE SURVIVAL AT 1 YEAR AT THE PRICE OF 1 TOXIC DEATH EVERY 24 PATIENTS TREATED MEDIAN OVERALL SURVIVAL 12.3 mo. vs 10.3 mo.

  37. BEVACIZUMAB INCREASE OF SALES BY 76% IN 2006 vs 2005 WITH A TOTAL OF 2.4 Billion $ SCRIPT, 29th March 2007

  38. CETUXIMAB RECOMBINANT MONOCLONAL ANTIBODY THAT BLOKS EGFR LICENSED IN COMBINATION WITH IRINOTECAN FOR PATIENTS EXPRESSING EGFR IN METASTATIC COLORECTAL CANCER AFTER FAILURE OF CYTOTOXIC THERAPY THAT INCLUDED IRINOTECAN DOSE: 400 mg/m2 i.v. (700 mg) FOLLOWED BY 250 mg/m2 (430mg) weekly 100 mg 189.05 € 1,323 € (LOADING DOSE) 842,9 (MAINTENANCE DOSE) TOTAL COURSE AVERAGE 16.8 DOSES = 13,117.8 €

  39. CETUXIMAB OUTCOME CETUXIMAB CETUXIMAB + IRONOTECAN MEDIAN OVERALL SURVIVAL n= 329 6.9 mo. 8.5 mo. n= 347 6.6 mo. - n= 057 6.4 mo. - n= 138 - 8.4 mo. METASTATIC COLORECTAL CANCER NS

  40. SECOND-LINE TREATMENT IRINOTECAN IRINOTECAN + CETUXIMAB OVERALL RESPONSE RATE (%) 2.6 04.0 DISEASE CONTROL (%) 4.2 16.4 MEDIAN PROGRESSION-FREE (MO) 2.6 04.0 OVERALL SURVIVAL (MO) 9.9 10.7 n=1300 patients with colorectal cancer failing first-line oxaliplatin-based therapy EPIC, 2007

  41. NATIONAL INSTITUTE FOR HEALTH AND CLINICAL EXCELLENCE Final Appraisal Determination Bevacizumab and cetuximab for metastatic colorectal Cancer Bevacizumab in combination with 5-fluorouracil plus folinic acid, with or without irinotecan, is not recommended for the first-line treatment of metastatic colorectal cancer. Cetuximab in combination with irinotecan is not recommended for the secondline or subsequent treatment of metastatic colorectal cancer.

  42. THERE IS A NEED FOR MORE INDEPENDENT CLINICAL RESEARCH • AT LEAST ONE PHASE 3 STUDY FOR DRUG APPROVAL SHOULD BE PERFORMED BY A NON-PROFIT INSTITUTION • HEAD TO HEAD COMPARISON OF SINGLE DRUGS OR STRATEGIES

  43. THE ROLE OF AIFA • 54 PROJECTS APPROVED AND FINANCED IN 2006 (35 M €) • 51 PROJECTS APPROVED IN 2007

  44. EXAMPLES OF APPROVED PROJECTS A prospective study on long-term outcome and potential usefulness of an intervention aimed at reducing adverse effects in patients with refractory epilepsy. Evaluation of prescribing pattern and safety profile of antidepressant and antipsychotic medications in italian general practice. Pharmacist’s outreach visits and new information formats: cluster and single-doctor randomised controlled trials for evaluating their feasibility and impact on knowledge, attitudes and prescribing practices of general practitioners in three italian regions.

  45. EXAMPLES OF APPROVED PROJECTS A randomized, placebo-controlled study of the efficacy of low-dose aspirin in the prevention of cardiovascular events in subjects with diabetes mellitus treated with statins. A randomized prospective, multicenter trial to compare the effect on chronic allograft nephropathy of mycophenolate mofetil versus azathioprine as the sole immunosuppressive therapy for kidney transplant recipients. A randomized, controlled trial to evaluate the efficacy of low-molecular-weight heparin on pregnancy outcome of women with previous pregnancy complications.

  46. EXAMPLES OF APPROVED PROJECTS First adjuvant trial on all aromates inhibitors in early breast cancer. A phase 3 study comparing anastrozolo, letrozole and exemestane, upfront or sequentially. A randomized clinical trial of trastuzumab optimization in patients with locally advanced and/or metastatic breast cancer overexpressing her 2 after a first-line chemotherapy plus trastuzumab. Multicenter randomized controlled study of azathioprine versus interferon beta in relapsing-remitting multiple sclerosis.

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