Evidence map›Paper›PMID 37770924›Full record

ArticleInternational journal for equity in health2023

The impact of the national volume-based procurement policy on the use of policy-related drugs in Nanjing: an interrupted time-series analysis.

Xiao Wang, Xuan He, Pei Zhang, Mengdie Zhang, Rui Ma, Rouli Dai, Xin Li

Open access · goldAbstract read
In one paragraph

Article in International journal for equity in health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
12.0field-weighted citation impact, top 2% of its field
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

27 citing papers in PubMed, 21 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Xiao WangSchool of Health Policy and Management, Nanjing Medical University, No.101 Longmian Avenue, Jiangning District, Nanjing, Jiangsu, P.R. China, 211166.
Xuan HeSchool of Health Policy and Management, Nanjing Medical University, No.101 Longmian Avenue, Jiangning District, Nanjing, Jiangsu, P.R. China, 211166.
Pei ZhangSchool of Pharmacy, Nanjing Medical University, Nanjing, China.
Mengdie ZhangSchool of Pharmacy, Nanjing Medical University, Nanjing, China.
Rui MaSchool of Pharmacy, Nanjing Medical University, Nanjing, China.
Rouli DaiNational Institute of Drug Clinical Trials, the Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, China. dairouli@163.com.
Xin LiSchool of Health Policy and Management, Nanjing Medical University, No.101 Longmian Avenue, Jiangning District, Nanjing, Jiangsu, P.R. China, 211166. xinli@njmu.edu.cn.
Nanjing Medical University · CNSecond Affiliated Hospital of Nanjing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn September 2019, the "4 + 7" centralized procurement pilot program was expanded nationwide aiming at reducing drug prices by means of volume-based procurement and using accredited generic drugs for branded drug substitutes. Given the current uncertain effect of the policy outside pilot areas, this study was conducted to evaluate the impact of the National Volume-based Procurement policy on the use of policy-related drugs after expansion.

methodA single-group interrupted time series was applied using drug purchase data, covering 25 months from December 2018 to December 2020. Drugs related to the centralized procurement policy were selected as samples, including 25 first-batch policy-related drugs and 56 alternative drugs. Centralized procured drugs can be divided into bid-winning and non-winning products, where non-winning products were sorted into generic and branded drugs, and alternative products were classified according to different degrees of substitution. Purchase volume, expenditures, and daily costs were measured.

resultsAfter the implementation of the policy, a significant increase was associated with the volume of bid-winning drugs (p < 0.001) and the volume of generic and branded drugs decreased immediately. The DDDc of drugs under the same generic name significantly reduced (an instantaneous drop of bid-winning drugs by approximately 25%, 7.62 CNY for generics and 3.07 CNY for branded drugs), saving 48.2 million CNY of drug expenditures. The policy has a significant effect on the drug for the treatment of cardiovascular diseases and exerted little influence on the drug for the treatment of nervous diseases, and the substitution of generics for antitumor-branded drugs was not obvious. In addition, the procurement volume of alternative drugs appeared to be a "carry-over".

conclusionsThese findings indicated that the policy demonstrated positive effects in terms of price reductions and cost savings and accelerated the substitution of generics against branded drugs. The "patent cliff" for branded drugs has gradually emerged. Besides, a short-term "spillover effect" of the volume of alternative drugs was observed, requiring special attention and vigilance.

Indexed as

Drug CostsHealth ExpendituresCost SavingsDrugs, GenericHealth PolicyHumansInterrupted Time Series AnalysisDrugs, GenericAlternative drugsCentralized procurementDrug useInterrupted time seriesNational volume-based procurement policy

Identifiers

PMID37770924
PMCPMC10540346
OpenAlexW4387132223

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Registered trials

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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 OpenQuestion graph.