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Low Dose ALKS 5461 — Competitive Intelligence Brief
phase 3
Opioid agonist-antagonist combination
Mu-opioid receptor (buprenorphine component); opioid receptor antagonism (samidorphan component)
Pain Management / Opioid Use Disorder
Small molecule
Live · refreshed every 30 min
Target snapshot
Low Dose ALKS 5461 (Low Dose ALKS 5461) — Alkermes, Inc.. ALKS 5461 is a combination of buprenorphine and samidorphan that acts as a partial mu-opioid receptor agonist while blocking opioid-induced side effects through opioid antagonism.
Comparator set (6 drugs)
| Drug | Generic | Sponsor | Phase | Class | Target | Approval / PDUFA |
|---|---|---|---|---|---|---|
| Low Dose ALKS 5461 TARGET | Low Dose ALKS 5461 | Alkermes, Inc. | phase 3 | Opioid agonist-antagonist combination | Mu-opioid receptor (buprenorphine component); opioid receptor antagonism (samidorphan component) | |
| Zubsolv sublingual tablets | Zubsolv sublingual tablets | Indivior Inc. | marketed | Opioid agonist-antagonist combination | Mu-opioid receptor (buprenorphine); opioid receptors (naloxone antagonism) | |
| Buprenorphine, Naloxone Drug Combination | Buprenorphine, Naloxone Drug Combination | The University of Texas Health Science Center, Houston | marketed | Opioid agonist-antagonist combination | Mu-opioid receptor (buprenorphine as partial agonist; naloxone as antagonist) | |
| Suboxone (SCH 000484) | Suboxone (SCH 000484) | Merck Sharp & Dohme LLC | marketed | Opioid agonist-antagonist combination | Mu-opioid receptor (buprenorphine); opioid receptors (naloxone) | |
| Buprenorphine Naloxone | Buprenorphine Naloxone | Johns Hopkins University | marketed | Opioid agonist-antagonist combination | Mu-opioid receptor (buprenorphine as partial agonist; naloxone as antagonist) | |
| NTX/BUP | NTX/BUP | Alkermes, Inc. | phase 3 | Opioid agonist-antagonist combination | Mu-opioid receptor (μ-OR) | |
| Oxycodone Naltrexone (a) | Oxycodone Naltrexone (a) | Elite Laboratories, Inc | phase 3 | Opioid agonist-antagonist combination | Mu-opioid receptor (oxycodone agonist); opioid receptors (naltrexone antagonist) |
Recent regulatory actions (last 90 days)
Upcoming PDUFA dates (next 180 days)
Patent timeline (forward window)
Sponsor landscape (Opioid agonist-antagonist combination class)
- New York State Psychiatric Institute · 2 drugs in this class
- Elite Laboratories, Inc · 2 drugs in this class
- Alkermes, Inc. · 2 drugs in this class
- Merck Sharp & Dohme LLC · 1 drug in this class
- Orexo AB · 1 drug in this class
- The University of Texas Health Science Center, Houston · 1 drug in this class
- Indivior Inc. · 1 drug in this class
- Johns Hopkins University · 1 drug in this class
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Cite this brief
Drug Landscape (2026). Low Dose ALKS 5461 — Competitive Intelligence Brief. https://druglandscape.com/ci/low-dose-alks-5461. Accessed 2026-05-14.
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