Microsoft word - cialis-e april 08.doc

Report on New Patented Drugs - Cialis
Under its transparency initiative, the PMPRB publishes the results of the reviews
of new patented drugs by Board Staff, for purposes of applying the PMPRB’s
Excessive Price Guidelines (Guidelines) for all new active substances introduced
after January 1, 2002.
Brand Name: Cialis
Generic Name:

Patentee:

Indication - as per product monograph:

For the treatment of erectile dysfunction.
Date of Issuance of First Patent(s) Pertaining
to the Medicine:

Notice of Compliance:

Date of First Sale:

ATC Class: GO4BE08
Urologicals; Drugs Used in Erectile Dysfunction
APPLICATION OF THE GUIDELINES
Summary
The introductory prices of Cialis 10 mg/tablet and Cialis 20 mg/tablet were not in
excess of the triggers for commencing an investigation under the Guidelines in
the introductory sale period (November to December 2003) because their costs
of therapy did not exceed by 5% or more the maximum non-excessive (MNE)
price (or have excess revenues of $25,000.00 or more) based on the cost of
therapy of existing drugs in the therapeutic class comparison. In addition, the
prices of Cialis in Canada did not exceed the prices of the same medicines in the
other comparator countries listed in the Patented Medicines Regulations
(Regulations) where they were sold.
For information on the Criteria for Commencing an Investigation, please see
Schedule 5 of the Compendium of Guidelines, Policies and Procedures, as
posted on our Web site under Legislation, Regulations and Guidelines.
Scientific Review

The PMPRB's Human Drug Advisory Panel (HDAP) recommended that Cialis be
reviewed as a category 3 new medicine (provides moderate, little or no
therapeutic advantage over comparable medicines).
The Therapeutic Class Comparison (TCC) test of the Guidelines provides that
the price of a category 3 new drug product cannot exceed the prices of other
drugs that treat the same disease or condition. Comparators are generally
selected from among existing drug products in the same 4th level of the
Anatomical Therapeutic Chemical (ATC) System that are clinically equivalent in
addressing the approved indication. See the PMPRB's Compendium of
Guidelines, Policies and Procedures for a more complete description of the
Guidelines and the policies on TCCs.
The HDAP identified Viagra (sildenafil) as the most appropriate comparator for
Cialis, as it shares the same 4th level ATC classification and is clinically
equivalent in addressing the approved indication of Cialis.
The Guidelines provide that the dosage recommended for comparison purposes
will normally not be higher than the maximum of the usual recommended
dosage. The recommended comparable dosage regimens for Cialis and the
comparator are based on their respective product monographs, available
comparative clinical trial information as well as guidelines relevant to the subject
matter.
Price Review
Under the Guidelines, the introductory price of a new category 3 drug product will
be presumed to be excessive if it exceeds the prices of all of the comparable
drug products in the TCC test by a margin greater than or equal to the triggers for
commencing an investigation in the introductory period, or if it exceeds the prices
of the same medicine in the seven countries listed in the Regulations. The prices
of Cialis 10 mg/tablet and Cialis 20 mg/tablet did not exceed the triggers as their
costs per treatment did not exceed the costs per treatment of the comparator
medicine by an amount that triggered the investigation criteria. The prices were
subsequently within the Guidelines.
(Introductory Period (November to December 2003)
Name Strength
Treatment*
10 mg tablet
$11.7000
50 mg tablet
$11.2500
20 mg tablet
$11.7000
100 mg tablet
$11.2500
*Sources: for Viagra, PPS, July 2003; for Cialis, publicly available prices as per the Patented Medicines Regulations, 1994 In 2003, Cialis 10 mg/tablet and Cialis 20 mg/tablet were being sold in six of the seven countries listed in the Regulations (not sold in Switzerland). In compliance with the Guidelines, the prices of Cialis 10 mg/tablet and Cialis 20 mg/tablet in Canada were lower than the highest price prevailing in those countries. The prices of Cialis 10 mg/tablet and Cialis 20 mg/tablet were the second highest of those countries, above the median international price. The publication of Summary Reports is part of the PMPRB’s commitment to make its price review process more transparent. Where comparators and dosage regimens are referred to in the Summary Reports, they have been selected by the HDAP for the purpose of carrying out the PMPRB’s regulatory mandate, which is to review the prices of patented medicines sold in Canada to ensure that such prices are not excessive. In its Summary Reports, the PMPRB will also refer to the publicly available prices of comparators provided such prices are not more than 10% above a non-excessive price in which case no price will be made available. As a result, the publication of these prices is for information purposes only and should not be relied upon as being considered within the Guidelines. The information contained in the PMPRB’s Summary Reports should not be relied upon for any purpose other than stated and is not to be interpreted as an endorsement, recommendation or approval of any drug nor is it intended to be relied upon as a substitute for seeking appropriate advice from a qualified health care practitioner.
References - Cialis

1.
Anonymous. FDA Approves Third Drug To Treat Erectile Dysfunction. FDA Talk Paper, November 21, 2003. http://www.fda.gov/bbs/topics/ANSWERS/2003/ANS01265.html Brock GB, et al. Efficacy and safety of tadalafil for the treatment of erectile dysfunction: results of an integrated analysis. J Urol 2002;168(4):1332-6. Curran MP, Keating GM. Tadalafil. Drugs 2003;63(20):2203-12. Cutler HG, Smith W, Cutler SJ. Treatment of Sexual Dysfunction, US Pharmacist 2002;23:5. http://www.uspharmacist.com/oldformat.asp?url=newlook/files/feat/acf2fca.htm European Agency for the Evaluation of Medicinal Products. Scientific Discussion: Cialis. http://www.emea.eu.int/humandocs/PDFs/EPAR/Cialis/396002en6.pdf European Agency for the Evaluation of Medicinal Products. Summary of Product Characteristics: Cialis. http://www.emea.eu.int/humandocs/PDFs/EPAR/Cialis/396002en4.pdf Govier F, Potempa AJ, Kaufman J, Denne J, Kovalenko P, Ahuja S. A multicenter, randomized, double-blind, crossover study of patient preference for tadalafil 20 mg or sildenafil citrate 50 mg during initiation of treatment for erectile dysfunction. Clin Ther. 2003;25(11):2709-23. Gray J (ed.). Therapeutic Choices (4th ed.). Canadian Pharmacists Association, Ottawa, ON, 2003. Kloner RA, Emmick JT, Denne J. Time course of the interaction between tadalafil and nitrates. J Am College Cardio 2003;42(10):1855-60. Kloner RA, Mitchell M, Emmick JT. Cardiovascular effects of tadalafil. Am J Cardiol 2003 6;92(9A):37M-46M. http://www.merck.com/mrkshared/mmanual/home.jsp, Montorsi F, Verheyden B, Meuleman E, Junemann KP, Moncada I, Valiquette L, Casabe A, Pacheco C, Denne J, Knight J, Segal S, Watkins VS. Long-term safety and tolerability of tadalafil in the treatment of erectile dysfunction. Eur Urol 2004;45(3):339-44. Porst H. et al. Efficacy of tadalafil for the treatment of erectile dysfunction at 24 and 36 hours after dosing: a randomized controlled trial. Urology 2003:62(1):121-5. Repchinsky C (ed.). Compendium of Pharmaceutical and Specialties, 38th ed. Canadian Pharmacists Association. 2003, Ottawa. Saenz I, et al. Effects of tadalafil on erectile dysfunction in men with diabetes. Diabetes Care 2002;25(12):2159-63. Saulie BA, Campbell RK. Treating Erectile Dysfunction. US Pharmacist 2002;22:3. http://www.uspharmacist.com/oldformat.asp?url=newlook/files/feat/acf2ee4.htm Stroberg P, Murphy A, Costigan T. Switching patients with erectile dysfunction from sildenafil citrate to tadalafil: results of a European multicenter, open-label study of patient preference. Clin Ther 2003;25(11):2724-37. Von Keitz A, Rajfer J, Segal S, Murphy A, Denne J, Costigan T, Lockhart D, Beasley CM Jr, Emmick JT. A Multicenter, Randomized, Double-Blind, Crossover Study to Evaluate Patient Preference between Tadalafil and Sildenafil. Eur Urol 2004;45(4):499-509. Wood A. Erectile Dysfunction. NEJM 2000;342(24);1802-12.

Source: http://www.pmprb-cepmb.gc.ca/CMFiles/Regulating%20Prices/Price%20Review/New_Pat_Meds_Human/Cialis-e_April_0842HAR-642008-8974.pdf