Are Researchers Addressing Cancer Treatment and Survivorship Among People With Intellectual and Developmental Disabilities in the U.S.? A Scoping Review.

Samtani et al. (2021) searched every U.S. study on cancer treatment or survival for people with intellectual or developmental disabilities.

They found only a handful of papers. Most were small case stories, not real data.

The team mapped what was missing: caregiver guidance, doctor teamwork, and rules for telling patients about cancer.

Almost no research exists. We have no clear care plans for people with IDD who get cancer.

Caregivers and clinicians are flying blind. No one knows the best way to share a cancer diagnosis or manage side effects.

Perry et al. (2024) extends this gap. They show cancer warning-sign knowledge is also low among adults with ID, carers, and doctors. Together the two reviews paint a full picture: we lack both early detection and treatment guidance.

Arana et al. (2019) seems to contradict the “no data” story. Their survey found Black and Hispanic women with ID actually get mammograms more often than White peers. The difference is screening uptake versus treatment research. Grace shows we study treatment too little; Evelyn shows we can still track who gets screened.

Dai et al. (2023) add another piece. Most outpatient doctors talk only to caregivers, not to the adult with ID. This habit may feed the research gap Grace found: if doctors don’t see patients as partners, they won’t study their cancer needs.

If you support adults with IDD, cancer care is an open field. Start small: build a simple picture book to explain procedures, track sedation use, or teach medical staff how to speak directly to the patient. Your pilot data could become the evidence Grace says we need.