Evidence map›Paper›PMID 38802136›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2024

The impact of proposed price regulations on new patented medicine launches in Canada: a retrospective cohort study.

Wei Zhang, Huiying Sun, Daphne P Guh, Paul Grootendorst, Aidan Hollis, Aslam H Anis

Abstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Are Therapeutically Important Drugs No Longer Available in Canada?Healthcare policy = Politiques de sante · 2025
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Wei ZhangFaculty of Pharmaceutical Sciences (Zhang) and School of Population and Public Health (Anis), University of British Columbia; Centre for Advancing Health Outcomes (Zhang, Sun, Guh, Anis), Providence Research, Vancouver, BC; Leslie Dan Faculty of Pharmacy (Grootendorst), University of Toronto, Toronto, Ont.; Department of Economics (Hollis), University of Calgary, Calgary, Alta. wzhang@advancinghealth.ubc.ca.
Huiying SunFaculty of Pharmaceutical Sciences (Zhang) and School of Population and Public Health (Anis), University of British Columbia; Centre for Advancing Health Outcomes (Zhang, Sun, Guh, Anis), Providence Research, Vancouver, BC; Leslie Dan Faculty of Pharmacy (Grootendorst), University of Toronto, Toronto, Ont.; Department of Economics (Hollis), University of Calgary, Calgary, Alta.
Daphne P GuhFaculty of Pharmaceutical Sciences (Zhang) and School of Population and Public Health (Anis), University of British Columbia; Centre for Advancing Health Outcomes (Zhang, Sun, Guh, Anis), Providence Research, Vancouver, BC; Leslie Dan Faculty of Pharmacy (Grootendorst), University of Toronto, Toronto, Ont.; Department of Economics (Hollis), University of Calgary, Calgary, Alta.
Paul GrootendorstFaculty of Pharmaceutical Sciences (Zhang) and School of Population and Public Health (Anis), University of British Columbia; Centre for Advancing Health Outcomes (Zhang, Sun, Guh, Anis), Providence Research, Vancouver, BC; Leslie Dan Faculty of Pharmacy (Grootendorst), University of Toronto, Toronto, Ont.; Department of Economics (Hollis), University of Calgary, Calgary, Alta.
Aidan HollisFaculty of Pharmaceutical Sciences (Zhang) and School of Population and Public Health (Anis), University of British Columbia; Centre for Advancing Health Outcomes (Zhang, Sun, Guh, Anis), Providence Research, Vancouver, BC; Leslie Dan Faculty of Pharmacy (Grootendorst), University of Toronto, Toronto, Ont.; Department of Economics (Hollis), University of Calgary, Calgary, Alta.
Aslam H AnisFaculty of Pharmaceutical Sciences (Zhang) and School of Population and Public Health (Anis), University of British Columbia; Centre for Advancing Health Outcomes (Zhang, Sun, Guh, Anis), Providence Research, Vancouver, BC; Leslie Dan Faculty of Pharmacy (Grootendorst), University of Toronto, Toronto, Ont.; Department of Economics (Hollis), University of Calgary, Calgary, Alta.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Patented Medicine Prices Review Board (PMPRB), the agency that regulates the prices of patented medicines in Canada, published proposed amendments to the regulatory framework in December 2017. Because of a series of changes and delays, the revised policy has not yet been finalized. We sought to evaluate the potential early impact of the uncertainty about the PMPRB policy on patented-medicine launches.

methodsWe developed a retrospective cohort of patented medicines (molecules) sold in Canada and the 13 countries that the PMPRB currently uses or has proposed to use as price comparators, from sales data from the IQVIA MIDAS database for 2012-2021. The outcome was whether a molecule was launched (i.e., sold) in a specific country within 2 years of its global first launch (2-yr launch). We compared the change of 2-year launch before (2012-2017) and after the proposed amendments were published ("uncertain period," 2018-2021) in Canada with the change in the United States and the other 12 countries as a group ("other-countries group"), using interrupted time series and logistic regressions, respectively. We further conducted analyses for each individual country and subgroups by molecule characteristics, such as therapeutic benefit, separately.

resultsWe included 242 and 107 new molecules launched before publication of the proposed amendments and during the uncertain period, respectively. The corresponding 2-year launch proportions were 45.0% and 30.8% in Canada, 81.4% and 82.2% in the US, and 83.9% and 70.1% in the other-countries group. All analyses showed changes in 2-year launch during the uncertain period in the US and in the other-countries group that were similar to the changes in Canada. Greater decreases were observed in Norway and Sweden than in Canada. The 2-year launch proportion for molecules with major therapeutic benefit decreased from 45.8% to 31.3% in Canada during the uncertain period and from 87.5% to 62.5% in the other-countries group, but increased from 91.7% to 100% in the US.

interpretationNo negative impact of the PMPRB-policy uncertainty on molecule launches was observed when comparing Canada with price-comparator countries, except for molecules with major therapeutic benefit. The reduction in launches of medicines with major therapeutic benefit in Canada requires continuing investigation.

Indexed as

Drug CostsPatents as TopicCanadaCommerceHumansRetrospective StudiesUnited States

Identifiers

PMID38802136
PMCPMC11142024

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.