Nasal Fentanyl and Buccal Midazolam for Dying Patients

This will be an open-label, randomized, controlled feasibility pilot study to evaluate whether using nasal fentanyl (PecFent: 100, 200, 400 or 800 mcg) alone or in combination with buccal midazolam (Epistatus: 2.5, 5 or 10 mg) has the possibility to give better breakthrough symptom control to dying patients when compared with standard subcutaneous medication (Figure 1 A and B).

Each subject and their carers/family members will receive verbal and written information followed by signing of the Informed Consent Forms (ICFs). The study is divided into two arms. In both arms patients will receive standard regular oral or subcutaneous medication for relieving non-breakthrough symptoms. In the standard care arm, patients will receive standard as needed medication (SANM) administered orally, sublingually or subcutaneously for breakthrough symptoms. The experimental arm will consist of two stages: in Stage 1 of the study, PecFent will be given to patients in order to treat breakthrough pain instead of subcutaneous opioids. PecFent will be titrated in order to establish an effective treatment dose to manage pain. SANM administered orally, sublingually or subcutaneously will be used to treat agitation and other symptoms.

After the effective treatment dose of PecFent has been established patients will enter stage 2. Patients will not move to stage 2 if the treatment dose of PecFent is not deemed effective. Stage 2 will test a range of doses of Epistatus in terms of efficacy in treating agitation alone instead of subcutaneous midazolam (or in combination with the effective treatment dose of PecFent for pain and agitation).

SANM will be used to treat other symptoms. Assessment of effectiveness of any as needed medication will be conducted at 30 minutes from administration. If PecFent, Epistatus or a combination of both is ineffective, administration of SANM will be considered. Further opioid cannot be given within one hour but benzodiazepine can be given within 30 minutes as is standard practice in this setting. Thus, patients in the experimental arm will receive symptom relief regardless the efficacy of test drugs.

Inclusion criteria

Adult hospice in-patients fitting the following criteria will be approached to see if they are willing to participate in the study:

• diagnosis of terminal cancer and thought to have an estimated prognosis of between 1 and 2 weeks
• have capacity to consent to participation
• patients who, in the last 24 hours, have experienced at least one episode of breakthrough pain FOR ARMS 1 OR 2 (RCT) For Arm 3 must have had 1 episode of agitation necessitating the use of a benzodiazepine in the last 24 hours
• taking 60mg or more of oral morphine (or its equivalent) per 24 hours FOR ARMS 1 OR 2 (RCT) IF taking less than this dose of opioid could be enrolled in Arm 3 (Epistatus alone - change in protocol implemented 28/11/17
• have carers or family members who would be: willing to give the study medication to the patient likely to be at the hospice at least 50% of the time so that they are likely to be present to administer medication.

Exclusion criteria

• patients / carers / family members who in the opinion of the clinical team would be too distressed by the idea of participation
• patients with disease of the nasal/buccal mucosa preventing effective absorption of medication
• families who are unable to administer breakthrough medication e.g. problems with dexterity
• history of substance abuse - patient or carer / family.
• people who who might not adequately understand verbal explanations or written information given in English. The pilot is only recruiting 20 patients and Gloucestershire has a only a very small percentage of people who are not English speaking. It has been decided that it is not cost effective to fund translation for this pilot although this information will have to be taken into account when planning a larger study. We will capture information on the numbers of patients that may have been excluded and the languages that might have been needed.
• Participated in a medicinal trial within the last four months following the guidance from the Association of the British Pharmaceutical Industry.