Table 1 Components of the implementation strategy

Justification

Lack of knowledge about KS treatment, side effects, and beliefs about the outcome of treatment (limb amputation) were barriers to KS treatment in qualitative study

Encouragement and reminders by healthcare workers were identified in qualitative study as facilitators of KS treatment

Cost of transportation was identified in qualitative study as a barrier to KS treatment

Cost of chemotherapy and health insurance was identified in qualitative study as a barrier to KS treatment

Lack of social support and belief that everyone with cancer (KS) dies were barriers to KS treatment, knowing a KS survivor was a facilitator in qualitative study

Mechanism of action (COM-B)

Capability-psychological

Motivation-reflective

Opportunity-physical

Capability-psychological

Opportunity-physical

Opportunity-physical

Motivation-automatic

Opportunity-social

COM-B intervention function targeted

Education and modelling

Environmental restructuring, training, and enablement

Enablement

Enablement

Modelling and enablement

Definition

Increasing knowledge or understanding

An individual who identifies a person’s barriers to the diagnosis and treatment of a disease and helps the person overcome them.

Financial stipend to offset cost of transportation

Financial stipend to offset cost of health insurance

An individual with a history of the same disease who provides support during the treatment process

Actor(s)

Patient navigator

Patient navigator

Patient navigator or coordinator

Patient navigator or coordinator

KS survivor

Action(s)

1) Video about KS etiology and disease course

2) Video about KS treatment

1) Physically navigate to visits

2) Connect to services

3) Reminder about health insurance registration

4) Reminder about clinic visits

1) Provide stipend to offset the cost of transportation to first oncology visit and all chemotherapy visits (x6)

1) Provide stipend for 1-year fees for health insurance

Speak to person with KS on the phone or in-person about:

(1) their experience

(2) guidance on next steps

(3) encouragement to continue KS treatment

(4) Refer to patient navigator when services are needed

Target(s) of action

Person with KS

Person with KS

Person with KS

Person with KS

Person with KS

Temporality

(1) At biopsy result visit

(2) At first oncology visit

(1) First oncology visit, first chemotherapy

(2) Biopsy Result Visit or First Oncology Visit

(3) At least once every 2 weeks for each person with KS not yet registered

(4) For first oncology visit, every chemotherapy x 6

(1) At each of the above visits

(1) At time of complete health insurance registration

(1) After first oncology visit and after each chemotherapy

Dose

(1)1 occurrence (10 min)

(2) 1 occurrence (15 min)

(1) 2 occurrences

(2) at least 1 occurrence

(3) at least 1 occurrence

(4) at least 7 occurrences

(1) 7 occurrences

(1) 1 occurrence

(1) at least 7 occurrences (at least 15 min each occurrence)