22
BRIXADI™ - HCP230524M0HG0
Topic/Issue
Request to establish a new HCPCS Level II code to identify BRIXADI™.
Applicant’s suggested language:
1. JXXXX, “Buprenorphine extended-release, weekly, less than or equal to 32mg
[BRIXADI 8mg, 16mg, 24mg, and 32mg], each”
2. JXXXX, “Buprenorphine extended-release, monthly, 64mg or greater [BRIXADI
64mg, 96mg, and 128mg], each”
Summary of Applicant's Submission
Braeburn Inc. submitted a request to establish two new HCPCS Level II codes to identify
BRIXADI™. BRIXADI™ was approved by the Food and Drug Administration (FDA) under
a 505(b)(2) New Drug Application (NDA) on May 23, 2023. BRIXADI™ contains
buprenorphine, a partial opioid agonist. BRIXADI™ is indicated for the treatment of
individuals with moderate to severe opioid use disorder who have initiated treatment with a
single dose of a transmucosal buprenorphine product or who are already being treated with
buprenorphine. BRIXADI™ should be used as part of a complete treatment plan that includes
counseling and psychosocial support. Again, BRIXADI™ contains buprenorphine, a partial
agonist at the mu-opioid receptor and an antagonist at the kappa-opioid receptor. The opioid
blockade study assessed the blockade of subjective opioid drug-liking effects and
pharmacokinetics (PK) of BRIXADI™ (weekly) in 47 patients with moderate or severe
opioid dependence. The primary endpoint was the maximum rating (Emax) on the visual
analogue scale (VAS) for drug-liking. After stabilization on immediate-release morphine, all
patients completed a 3-day qualification/baseline hydromorphone challenge session
consisting of 3 intramuscular doses of hydromorphone (0 mg, [placebo], 6 mg, and 18 mg)
once daily for 3 consecutive days in a randomized, double-blind, crossover manner.
Following the qualification phase, eligible patients received 2 injections of BRIXADI™
(weekly) for two weeks at either the 24 mg or 32 mg level. Two hydromorphone challenge
sessions (3 consecutive days each) were conducted throughout the week after each weekly
injection of BRIXADI™ (weekly). Both weekly BRIXADI™ doses produced immediate and
sustained blockade of hydromorphone effects, including both drug-liking effects and
suppression of withdrawal. BRIXADI™ (weekly) and BRIXADI™ (monthly) are different
formulations. Doses of BRIXADI™ (weekly) cannot be combined to yield an equivalent
BRIXADI™ (monthly) dose. BRIXADI™ should be injected slowly, into the subcutaneous
tissue of the buttock, thigh, abdomen, or upper arm. Clinicians should strongly consider
prescribing naloxone at the time BRIXADI™ is initiated or renewed because patients being
treated for opioid use disorder have the potential for relapse, putting them at risk for opioid
overdose. Furthermore, injection sites for BRIXADI™ (weekly) should be alternated/rotated
for each injection. In patients who are not currently receiving buprenorphine treatment, for
BRIXADI™ (weekly), the upper arm site should only be used after steady-state has been
achieved (4 consecutive doses). Injection in the arm site was associated with approximately
10% lower plasma levels than other sites. BRIXADI™ is packaged as a single-use pre-filled
syringe.