Brain-Based Chronic Pain Treatments: An Evidence Map

Published August 23, 2026 · 12 min read

By Tauri Urbanik, research writer and PainApp founder

How to read this map

“Brain-based” is not a formal treatment category. It is used here for psychological, educational, and attention-based approaches that aim to change pain-related learning, threat, emotion, behavior, or coping. These approaches do not imply that pain is imaginary or that tissue, nerve, inflammatory, and disease-related contributors can be ignored.

The studies below cannot be ranked by headline percentage. They enrolled different people, used different comparators, measured different outcomes, and followed participants for different lengths of time. A large result in one narrow trial is not automatically stronger evidence than a small result repeated across many trials.

Download the evidence map as CSV

Six evidence rows · source URLs and DOIs included · last reviewed August 23, 2026

Evidence at a glance

What the labels mean

• Broad evidence; modest effects means many studies exist across several chronic-pain populations, but the average benefit compared with controls is small.
• Promising; narrow means a notable result exists, but replication and evidence in other populations or formats are limited.
• Promising; population-specific means a trial supports the approach in a clearly bounded group that may not represent everyone seeking care.
• Mixed; condition-specific means primary and secondary outcomes do not point in one uniformly positive direction.
• Broad evidence; low certainty means many trials exist, but study limitations reduce confidence in the size of the effect.
• Mixed; generally adjunctive means evidence looks more favorable when the approach accompanies other care than when it is used alone.

These are editorial orientation labels, not GRADE ratings or clinical recommendations. They are intended to stop unlike evidence from being flattened into a single “success rate.”

Pain Reprocessing Therapy: a large result with narrow scope

The Boulder Back Pain Study randomized 151 adults with primary chronic back pain to PRT, an open-label placebo injection, or usual care. Participants assigned to PRT received a physician telehealth evaluation plus eight individual psychological sessions over four weeks. Of the 50 participants assigned to PRT, 33 were pain-free or nearly pain-free after treatment (Ashar et al., JAMA Psychiatry, 2022↗).

The result was largely maintained through one year, and a secondary five-year follow-up was published in 2025 (Ashar et al., JAMA Psychiatry, 2025↗). The follow-up paper also reports financial and professional relationships involving PRT training, publishing, pain companies, and related clinical organizations.

What this supports: therapist-led PRT can produce substantial and durable benefit for some carefully selected adults with primary chronic back pain.

What it does not support: a universal success rate for chronic pain, the same result for every diagnosis, or equivalence between the trial protocol and a book, app, group course, or standalone PRT exercise.

EAET: results depend on the population and comparison

In a cluster-randomized fibromyalgia trial of 230 adults, Emotional Awareness and Expression Therapy did not differ from fibromyalgia education on the primary pain-severity outcome. It also did not differ from CBT on the primary or most secondary outcomes, although it showed advantages on some symptoms, widespread pain, and the proportion achieving 50% pain reduction (Lumley et al., PAIN, 2017↗).

A later randomized trial enrolled 126 veterans aged 60 to 95 with chronic musculoskeletal pain; 92% were male. EAET reduced pain severity more than CBT after treatment and at six months. At posttreatment, 63% of the EAET group versus 17% of the CBT group achieved at least 30% pain reduction (Yarns et al., JAMA Network Open, 2024↗).

Both trials are relevant. Neither should be turned into a claim that EAET is proven superior for all chronic pain. See the detailed EAET evidence guide.

CBT: the broadest base, with small average effects

A Cochrane review included 75 psychological-treatment studies with 9,401 participants at treatment end. CBT accounted for 59 studies. Compared with active controls, CBT showed very small benefits for pain, disability, and distress at the end of treatment. Many risk-of-bias domains were high or unclear, and adverse events were inadequately reported (Williams et al., Cochrane Database of Systematic Reviews, 2020↗).

This is an important contrast with PRT. CBT has more replication and broader populations; PRT has a much larger result in one narrower efficacy trial. Those are different strengths, not a clean winner and loser.

Mindfulness: small effects with low certainty

A systematic review and meta-analysis included 38 randomized trials of mindfulness meditation for adults with chronic pain. It found low-quality evidence of a small decrease in pain compared with varied controls, along with improvements in depression symptoms and quality of life. Only seven trials reported safety outcomes (Hilton et al., Annals of Behavioral Medicine, 2017↗).

Mindfulness may be useful within a broader plan, especially when mood or quality of life are important goals. The evidence does not justify promising pain elimination.

Pain neuroscience education: context matters

Pain neuroscience education (PNE) is often described online as treatment by itself. A 2023 umbrella review gives a more cautious picture. Across 16 systematic reviews, adding PNE to other care—usually exercise-based or multimodal treatment—appeared to improve some outcomes, particularly psychosocial variables. Reviews testing PNE in isolation did not show statistically significant overall improvements in pain intensity, disability, or psychosocial variables (Cuenca-Martínez et al., Frontiers in Neuroscience, 2023↗).

The review also found critically low methodological quality, high overlap, and heterogeneous protocols. Education can help people make sense of pain and participate in care, but reading an article should not be represented as equivalent to completing an effective treatment.

What the map does not include yet

This first release is deliberately bounded. It does not yet map every form of ACT, graded exposure, hypnotherapy, biofeedback, multidisciplinary rehabilitation, or condition-specific psychological treatment. It also does not combine incompatible effect sizes into a league table.

Future additions must include a source, defined population, comparator, outcome, follow-up, limitation, and conflict note. The map will be updated when a study materially changes one of the summaries—not merely to refresh the date.

How to use this evidence with a clinician

Bring the map to a clinician and ask four questions:

1. Which pain mechanisms are plausible in my case, including mixed contributors?
2. Does the study population resemble me and my diagnosis?
3. Is the available service similar to the studied intervention?
4. Which outcomes should we track besides pain intensity, and when should we change course?

An evidence map cannot diagnose pain or determine whether a movement, exercise, or psychological approach is safe for an individual.

Frequently asked questions

Which brain-based treatment has the strongest evidence for chronic pain?

There is no universal winner. CBT has the broadest evidence base but generally small effects. PRT showed a large result in one selected primary chronic back-pain trial. EAET findings are promising but population-specific, while mindfulness and pain neuroscience education have broader but lower-certainty or mixed findings.

Does the PRT trial prove Pain Reprocessing Therapy works for every chronic pain condition?

No. The randomized trial studied selected adults with primary chronic back pain using a physician evaluation and eight therapist-led sessions. It does not establish the same effect for other diagnoses, self-guided programs, or apps.

Is pain neuroscience education effective by itself?

A 2023 umbrella review found that PNE added to multimodal care may improve some outcomes, especially psychosocial variables, but PNE alone did not show statistically significant overall improvements. The included reviews were heterogeneous and mostly low quality.

Can I download the chronic pain evidence map?

Yes. The map is available as a CSV containing the approach, evidence source, population, evidence size, comparator, main finding, limitations, DOI, source URL, and review date.

References

1. Ashar YK, Gordon A, Schubiner H, et al. Effect of Pain Reprocessing Therapy vs Placebo and Usual Care for Patients With Chronic Back Pain: A Randomized Clinical Trial. JAMA Psychiatry. 2022;79(1):13-23.DOI: 10.1001/jamapsychiatry.2021.2669
2. Ashar YK, et al. Pain Reprocessing Therapy vs Placebo and Usual Care for Patients With Chronic Back Pain: 5-Year Follow-Up of a Randomized Clinical Trial. JAMA Psychiatry. 2025;82(10):1049-1051.DOI: 10.1001/jamapsychiatry.2025.1844
3. Lumley MA, et al. Emotional awareness and expression therapy, cognitive behavioral therapy, and education for fibromyalgia: a cluster-randomized controlled trial. PAIN. 2017;158(12):2354-2363.DOI: 10.1097/j.pain.0000000000001036
4. Yarns BC, et al. Emotional Awareness and Expression Therapy vs Cognitive Behavioral Therapy for Chronic Pain in Older Veterans: A Randomized Clinical Trial. JAMA Network Open. 2024;7(6):e2415842.DOI: 10.1001/jamanetworkopen.2024.15842
5. Williams ACC, Fisher E, Hearn L, Eccleston C. Psychological therapies for the management of chronic pain (excluding headache) in adults. Cochrane Database Syst Rev. 2020;8:CD007407.DOI: 10.1002/14651858.CD007407.pub4
6. Hilton L, et al. Mindfulness Meditation for Chronic Pain: Systematic Review and Meta-analysis. Ann Behav Med. 2017;51(2):199-213.DOI: 10.1007/s12160-016-9844-2
7. Cuenca-Martínez F, et al. Pain neuroscience education in patients with chronic musculoskeletal pain: an umbrella review. Front Neurosci. 2023;17:1272068.DOI: 10.3389/fnins.2023.1272068