Barriers to Clinical Trial Participation Revealed By Gynecologic Cancer Patients

Eligibility Criteria in Clinical Trials: PARP Inhibitors

By Jennifer Smith

A survey of gynecologic cancer survivors has revealed why some of these patients don’t participate in clinical trials.

Half of survey respondents with no history of trial participation said their medical team never mentioned the possibility of a trial. About 27% of respondents who never enrolled in a trial said they were interested in trial participation but didn’t qualify, the trial they wanted wasn’t available, their insurance didn’t cover participation, or the trial site was too far away.

Annie Ellis and Mary (Dicey) Jackson Scroggins, who are both ovarian cancer survivors and patient advocates, reported these findings in an abstract that had been slated for presentation at the Society of Gynecologic Oncology’s Annual Meeting on Women’s Cancer. The meeting was canceled because of the COVID-19 pandemic.

“We thought it was important to hear and learn directly from gynecologic cancer survivors,” Ms. Ellis said in an interview. “So we decided to conduct a survey that would expand knowledge about clinical trial participation from a gynecologic cancer patient–specific perspective.”

Most respondents (65.61%) had never participated in a clinical trial. The most common reason was that the patient’s doctor or medical team never discussed trial participation (50.40%).

There were patients who were interested in trial participation but couldn’t enroll because they didn’t qualify (14.40%), the location was too far away (7.20%), the trial they wanted wasn’t available (4.00%), or their insurance didn’t cover trial participation (1.60%).

Patients who were not interested in trial participation said they didn’t want to receive a placebo (11.20%), they weren’t interested in experimental therapies (3.20%), or they didn’t want to be randomized (2.40%). One patient (1.60%) said she does not trust the medical system.

Perspectives of trial participants

Roughly a third of respondents (34.39%) had participated in a clinical trial. Most (86.15%) said they learned about the trial from their doctor. Other sources included the patient’s own research (13.85%), a trial matching service (3.08%), a family member or friend (3.08%), and a support group (1.54%).

The most common reasons patients participated in trials were: “my doctor recommended it,” “to help women in the future,” “to expand my treatment options,” and “to have a chance to benefit personally.”

Additional responses indicated that patients viewed their trial participation in a positive light.

“We were surprised to find that 100% of the respondents who had participated in a clinical trial indicated either that they would participate again (84.62%) or that they were not sure about future participation (15.38%),” Ms. Ellis said. “No respondent indicated that she would not consider another trial. From open comments in the survey, it was clear that even if they did not obtain the result they hoped for or if the experience wasn’t optimal, they maintained the option of participating again.”

Implications and next steps

The survey results suggest there is a need for more discussions about clinical trials with patients who have gynecologic cancers, according to Ms. Ellis and Ms. Scroggins.

“We feel that conversations about clinical trials, with health care team members, should be included at every care decision point, even if – or perhaps especially if – the patient belongs to a group perceived to be unlikely to agree to participate in a trial,” Ms. Ellis said.

“These conversations are necessary with all patients-survivors,” she said, “but they are particularly important and necessary with patients from populations underrepresented in the clinical trial system if we want more representative trial populations, more generalizable results, and the potential for better outcomes for all.”

“We’d like to conduct a larger survey looking deeper into barriers to and reasons for participation, and to work with medical professionals to develop models of communication to encourage consideration of clinical trials,” Ms. Ellis said. “Additionally, we will work to have a more diverse respondent pool across many dimensions.”

Ms. Ellis is a research advocate on the scientific advisory committee of the Ovarian Cancer National Alliance in Washington. Ms. Scroggins is the director of global outreach and engagement at the International Gynecologic Cancer Society in Louisville, Ken. They have no conflicts of interest.

SOURCE: Ellis A and Scroggins MJ. SGO 2020, Abstract 540.

This article was published by MDedge.

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