Highlights
- •Black women are underrepresented in gynecologic cancer clinical trials despite disproportionately worse cancer outcomes
- •Survey-based ‘return of value’ items show trial design factors that increase desire to participate among Black individuals
- •Gynecologic cancer clinical trials lack facilitators, information, and results Black individuals perceive as most valuable
- •Lack of valuable facilitators, information, and results may contribute to low accrual of Black women in cancer research
- •The results can be used to create person-centered, community-informed clinical trial design for gynecologic cancer research
Abstract
Objective
Underrepresented groups may be dissuaded from clinical trial participation without
perceived value. We therefore comprehensively assessed gynecologic cancer clinical trial protocols
for the inclusion of items of value most important to Black individuals.
Methods
ClinicalTrials.gov was queried for NCI-sponsored gynecologic cancer clinical trials in the US between
Jan.1994 and Nov.2021. Pre-specified return of value (ROV) items were abstracted from
each protocol. Inclusion proportions were calculated for each ROV item and temporal
changes assessed with chi-square tests. Temporality of proportional trends was further
assessed by slope and departure from linearity calculations.
Results
279 gynecologic cancer clinical trials were included. Most commonly trials had first
accrual in 2001–2007 (37%) and involved ovarian cancer (48%), phase II studies (53%),
and chemotherapy (60%) or targeted therapy (34%). Trials often included ROV items
in basic information (99%), medical record information (99%), and imaging (82%). 41%
of trials included ROV items in biomarker testing, 20% genetic testing, and 20% in
patient-reported outcome questionnaires. Over time, there were significant increases
in the proportion of trials that included genetic (3% to 51%; p < 0.001) and biomarker testing (14 to 78%, p < 0.001). Information on lifestyle risk
factors was rare (1%). No trials included ROV items in ancestry, how to connect with
other participants, or remuneration.
Conclusions
Gynecologic cancer clinical trials include few design elements that provide high value
to Black individuals like lifestyle risk factors, ancestry, and remuneration. In any
multi-pronged effort to improve diversity in clinical trial enrollment, inclusion
of items valued by Black individuals should be considered.
Keywords
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Article info
Publication history
Published online: March 15, 2023
Accepted:
March 6,
2023
Received in revised form:
March 4,
2023
Received:
December 28,
2022
Footnotes
☆This study was presented at the 15th Annual AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved, held in Philadelphia, PA, September 16-19, 2022.
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