Melatonin for chronic low back pain

Melatonin for Patients With Chronic Low Back Pain - a Randomized Placebo-controlled Trial

PHASE3 · Erasmus Medical Center · NCT06859957

This trial will test whether taking 10 mg of melatonin helps adults aged 18–65 with chronic low back pain lower their pain compared with a placebo.

Quick facts

PhasePHASE3
Study typeInterventional
Enrollment240 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorErasmus Medical Center (other)
Locations1 site (Rotterdam)
Trial IDNCT06859957 on ClinicalTrials.gov

What this trial studies

This Phase 3 interventional trial compares 10 mg melatonin with a matching placebo in adults who have had chronic low back pain for at least three months. Eligible participants are Dutch-speaking adults aged 18–65 who report pain most days and an average pain intensity of 4 or higher on a 0–10 numeric scale. People with specific causes of back pain (for example malignancy, fracture, radiculopathy that extends below the knee, or inflammatory arthritis), severe comorbidities, or contraindications to melatonin are excluded. The main aim is to determine whether melatonin reduces pain (and may improve sleep) compared with placebo.

Who should consider this trial

Good fit: Adults 18–65 who read and write Dutch, have non-specific low back pain most days for at least three months, and report average pain of 4/10 or higher are the intended participants.

Not a fit: Patients whose back pain has a specific cause (such as cancer, fracture, lumbar radiculopathy past the knee, or inflammatory arthritis), those with severe medical or psychiatric conditions, or anyone with contraindications to melatonin are unlikely to be eligible or to benefit.

Why it matters

Potential benefit: If effective, melatonin could offer a low-cost, well-tolerated option to reduce pain and improve sleep for people with chronic low back pain.

How similar studies have performed: Preliminary small studies have suggested melatonin may help with pain and sleep, but large randomized Phase 3 evidence is still limited.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* age 18-65
* understand and write Dutch
* LBP for 3 months or longer
* LBP must be present on 'most days' or 'every day' within the past 3 months
* LBP must limit life or work activities on 'some days', 'most days', or 'every day' within the past 3 months
* average LBP intensity of ≥4 on a 0-10 NRS in the past 7 days

Exclusion Criteria:

* LBP resulting from a specific cause such as malignancy, fracture, lumbar radiculopathy and spinal stenosis
* Radiating pain into the leg that goes further (down) than the knee
* Inflammatory/autoimmune arthritis
* Severe physical or psychiatric co-morbidities
* Contraindications to melatonin

Where this trial is running

Rotterdam

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Chronic Low-back Pain, Chronic low back pain, Melatonin

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.