# Trials of low-cost opioid alternatives where morphine supply is unreliable

Source: https://onco.cc/ideas/idea-acc-methadone-and-alternatives-where-morphine-fails/  
OnCo record `idea-acc-methadone-and-alternatives-where-morphine-fails` (Idea). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

When morphine is unavailable, patients get nothing. Some cheap alternatives, such as methadone or tramadol, may work for cancer pain but have not been properly tested in these settings.

## Summary

Morphine stock-outs are common in LMICs, leaving patients without analgesia. Methadone is inexpensive, long-acting, and effective for cancer pain but needs careful titration; tramadol is widely available but weaker and not internationally controlled, which affects supply differently. Pragmatic trials of protocolised methadone or tramadol-based regimens delivered by nurses in settings with unreliable morphine would establish safe fallback options and could inform essential medicines lists.

## Fields

- Kind: Idea
- Last checked: 2026-09-08
- Hypothesis: A protocolised methadone regimen delivered by trained nurses will achieve pain control non-inferior to oral morphine in patients with moderate to severe cancer pain, with acceptable safety.
- Rationale: Methadone is already used for cancer pain by specialists in high-income countries and is on the WHO essential medicines list; the question is safe delivery by non-specialists.
- Proposed test: A randomised non-inferiority trial in three LMIC centres comparing methadone protocol with morphine on pain scores at two weeks, with sedation and QT monitoring as safety endpoints.
- Maturity: speculative
- Actor: research

## Sources

- Bottleneck evidence (Pain relief and palliative care are unavailable to most): WHO fact sheet, Palliative care: https://www.who.int/news-room/fact-sheets/detail/palliative-care

## Connected records

- ideas: [A live stock-out map for essential chemotherapy drugs](https://onco.cc/ideas/idea-acc-chemo-stockout-early-warning/)
- bottlenecks: [Most of the world has almost no cancer care](https://onco.cc/bottlenecks/b-global-access/), [Pain relief and palliative care are unavailable to most](https://onco.cc/bottlenecks/b-palliative/)

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