Academic and institutional hypnotherapy studies

Tinnitus

J. Attias, Z. Shemesh, C. Shoham, A. Shahar, H. Sohmer
Scandinavian Audiology, 1990; 19(4):245-249
This comparative study found that 73% of subjects using self-hypnosis reported disappearance of tinnitus during treatment sessions, compared to only 24% in the brief auditory stimulus control group. Short-term (1 week) and longer-term (2 months) follow-ups showed significant improvement.
Maudoux A, et al.
B-ENT, 2007
Clinical trial demonstrating improvements in tinnitus severity using hypnosis plus self-hypnosis.
Cope TE
International Tinnitus Journal, 2008
Review and case series describing tinnitus improvements with hypnosis.
Tran N, et al.
American Journal of Clinical Hypnosis, 2025
Recent case study showing significant tinnitus improvement using hypnotherapy.

Cross-cutting & institutional overviews (general efficacy of clinical hypnosis)

Rosendahl J, et al.
Frontiers in Psychology, 2024
Comprehensive meta-analysis showing benefits of hypnosis across a wide range of mental and somatic disorders.
APA Monitor Editors
APA Monitor, 2024
Institutional summary of recent advances in clinical hypnosis, including pain, anxiety, and stress.
Royal College of Psychiatrists
RCPsych Professional Information
Institutional overview of hypnosis and hypnotherapy with guidance for patients and practitioners.

Anxiety (general, medical & peri-operative)

Valentine KE, et al.
International Journal of Clinical and Experimental Hypnosis, 2019
Meta-analysis demonstrating significant benefits of hypnosis in reducing various forms of anxiety.
Leo DG, et al.
Frontiers in Psychology, 2024
Systematic overview of hypnosis interventions in anxiety, including examination stress studies.
Chen PY, et al.
Worldviews on Evidence-Based Nursing, 2017
Meta-analysis confirming hypnosis reduces anxiety in oncology patients.
Tefikow S, et al.
Clinical Psychology Review, 2013
Evidence that hypnosis reduces anxiety and distress around medical and surgical interventions.
Holler M, et al.
Clinical Psychology Review, 2021
Updated meta-analysis showing hypnosis is effective in surgical settings for anxiety and pain reduction.
Zeng J, et al.
Gland Surgery, 2022
Meta-analysis showing hypnosis reduces pre-op anxiety and post-op pain in breast surgery patients.
Amraoui J, et al.
JAMA Network Open, 2018
RCT showing a single hypnosis session significantly reduced perioperative anxiety in surgical patients.
Walter N, et al.
Journal of Psychosomatic Research, 2025
Review of hypnosis for invasive medical procedures, confirming efficacy in reducing anxiety and discomfort.
Schmidt B, et al.
Trials (RCT Protocol/Results), 2025
Protocol and results of an RCT testing hypnosis as an adjunct for reducing anxiety before surgery.
ClinicalTrials.gov ID: NCT03730350
Ongoing/Completed Clinical Trial
Background and methodology summarising meta-analytic evidence for hypnosis in perioperative anxiety reduction.

Stress & wellbeing

Fisch S, et al.
Frontiers in Psychology, 2020
Randomized trial demonstrating hypnosis reduced stress and improved emotional regulation in participants.
Olendzki N, et al.
International Journal of Clinical and Experimental Hypnosis, 2020
Combination of mindfulness and hypnosis shown to reduce stress and improve wellbeing.

Sleep / Insomnia

Lam TH, et al.
Sleep Medicine Reviews, 2015
Meta-analysis showing hypnotherapy can improve sleep onset and quality in insomnia patients.
Chamine I, et al.
Journal of Clinical Sleep Medicine, 2018
Systematic review/meta-analysis showing hypnosis interventions improve sleep quality and duration.
Lam TH, et al.
Complementary Therapies in Medicine, 2018
RCT comparing different hypnosis scripts; both groups showed improved sleep outcomes.
Elkins G, et al.
International Journal of Clinical and Experimental Hypnosis, 2024
Study showing hypnosis improved sleep quality among university students.
Mamoune S, et al.
Complementary Therapies in Clinical Practice, 2022
Narrative review covering 25 studies (11 RCTs) supporting hypnosis as an insomnia treatment.

Pain

Thompson T, et al.
Neuroscience & Biobehavioral Reviews, 2019
Systematic review confirming hypnosis effectively reduces acute and chronic pain.
Yerzhan A, et al.
Journal of Clinical Medicine, 2025
Recent meta-analysis confirming hypnosis efficacy for both acute and chronic pain conditions.
Cyna AM, et al.
British Journal of Anaesthesia, 2023
Review summarising the role of hypnosis in reducing pain and anxiety in anaesthesia contexts.

IBS

Lee HH, et al.
Journal of Neurogastroenterology and Motility, 2014
Systematic review/meta-analysis confirming hypnotherapy is effective in reducing IBS symptoms.
NICE UK
NICE Clinical Guideline CG61
NICE notes hypnotherapy (alongside CBT) as a useful therapy for IBS, and recommends further large-scale RCTs.