| Literature DB >> 30768629 |
Joel Lexchin1,2,3.
Abstract
BACKGROUND: Patient groups represent the interest of their members when it comes to drug funding. Many patient groups receive grants from pharmaceutical companies that make products being considered for funding. This research examines whether there is an association between the positions that Canadian groups take about the products and conflicts of interest with the companies.Entities:
Mesh:
Substances:
Year: 2019 PMID: 30768629 PMCID: PMC6377138 DOI: 10.1371/journal.pone.0212399
Source DB: PubMed Journal: PLoS One ISSN: 1932-6203 Impact factor: 3.240
Number of conflicts per patient group submission.
| Status of conflict declaration in patient group submission | Number of patient group submissions (percent all submissions) | Total number of conflicts declared | |||
|---|---|---|---|---|---|
| Common Drug Review | panCanadian Oncology Drug Review | Common Drug Review | panCanadian Oncology Drug Review | ||
| No. of submissions with conflicts declared | 208 (87.8) | 119 (83.8) | 1493 | 403 | |
| Conflict with company marketing drug | 164 (69.2) | 115 (81.0) | 1164 | 393 | |
| No conflict with company marketing drug | 44 (18.6) | 4 (2.8) | 329 | 16 | |
| No. of submissions declaring no conflict | 15 (6.3) | 15 (10.6) | 0 | 0 | |
| No. of submissions where conflicts not known | 7 (3.0) | 8 (5.6) | |||
| Name of conflicted company not given | 6 (2.5) | 8 (5.6) | |||
| Conflict statement missing | 1 (0.4) | 0 (0) | |||
Examples of patient group positive, neutral and negative views about a drug-indication.
| Group view | Examples of statements |
|---|---|
| • Patients are seeking effective treatment options and patients who had taken vismodegib reported that their condition had stabilized without progression, many for the first time in their lives. | |
| • Input from CCSN indicated that patients would like nivolumab to reduce their side effects from their current treatments, stop disease progression, control their symptoms, and be accessible. | |
| • Despite the potential of this drug to treat a variety of patients, drug-drug interactions also limits its usefulness. In particular, several common HIV medications are contraindicated for use with glecaprevir/pibrentasvir. |
Distribution of patient group views about drug-indications under consideration*.
| Conflict | View of patient group | ||
|---|---|---|---|
| Positive | Neutral | Negative | |
| 191 | 23 | 2 | |
| 29 | 0 | 0 | |
| 22 | 1 | 0 | |
| 242 | 24 | 2 | |
*Excluding submissions about subsequent entry biologics.
Distribution of views by conflict status not statistically different, p = 0.3117, Chi square
Comparison of views of patient groups with recommendations from Common Drug Review and panCanadian Oncology Drug Review*†.
| Comparison | Fisher’s exact test (p value) |
|---|---|
| Patient group views and recommendations from CDR + pCODR | 0.78 |
| Patient group views and recommendations from CDR | 0.38 |
| Patient group views and recommendations from pCODR | 0.17 |
| Patient groups with conflict with company making drug and recommendations from CDR + pCODR | 0.99 |
| Patient groups with conflict with other companies and recommendations from CDR + pCODR | 0.20 |
| Patient groups with no conflict and recommendations from CDR + pCODR | 0.99 |
*Excluding submissions about subsequent entry biologics
†Neutral views grouped with negative views
Subsequent entry biologics (SEB)–distribution of views of patient groups.
| Conflict with: | Positive | Neutral | Negative |
|---|---|---|---|
| 1 | 7 | 2 | |
| 1 | 0 | 0 | |
| 1 | 0 | 0 | |
| 2 | 3 | 3 |
Patient group response to preliminary recommendation from panCanadian Oncology Drug Review.
| Preliminary recommendation from panCanadian Oncology Drug Review | ||||
|---|---|---|---|---|
| Fund | Fund with conditions or criteria | Do not fund | ||
| 4 | 33 | 0 | ||
| 1 | 10 | 2 | ||
| 1 | 2 | 17 | ||
*Where patient group declared a conflict with company marketing product
p < 0.0001, Fisher exact test