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Nutraceuticals as Monotherapy Treatments in Major Depressive Disorder: A Double-Blind, Randomised, Placebo-Controlled Trial

The Efficacy of S-Adenosyl Methionine (SAMe) and a Combination Nutraceutical as Monotherapy Treatments in Major Depressive Disorder: A Double-Blind, Randomised, Placebo-Controlled Trial

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12613001299796
Acronym
NMT-D
Enrollment
74
Registered
2013-11-22
Start date
2013-11-21
Completion date
2017-06-02
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The primary aim of this study is to investigate the efficacy and safety of SAMe versus a combination nutraceutical (SAMe + 5-HTP, EPA and zinc) in the monotherapy treatment of adults (n=60) with major depressive disorder in an 8-week, double-blind, randomised, placebo-controlled trial. The primary outcome measure is severity of depressive symptoms using the Montgomery-Asberg Depression Rating Scale (MADRS).

Interventions

Participants take 2 tablets and 2 capsules orally each day for 8 weeks in a 3-arm, double-blind, randomised, placebo-controlled trial. Group A: SAMe (800mg/day) + cofactors folinic acid (500mcg/day) and vitamin B12 (200mcg/day); Group B: Enhanced SAMe combination nutraceutical (CN) formulation consisting of SAMe (800mg/day), Omega-3 concentrate (EPA-esters 1000mg/day, DHA-esters 656mg/day), 5-HTP (200mg/day), zinc picolinate (30 mg/day) + cofactors folinic acid (500mcg/day), vitamin B12 (200

Participants take 2 tablets and 2 capsules orally each day for 8 weeks in a 3-arm, double-blind, randomised, placebo-controlled trial. Group A: SAMe (800mg/day) + cofactors folinic acid (500mcg/day) and vitamin B12 (200mcg/day); Group B: Enhanced SAMe combination nutraceutical (CN) formulation consisting of SAMe (800mg/day), Omega-3 concentrate (EPA-esters 1000mg/day, DHA-esters 656mg/day), 5-HTP (200mg/day), zinc picolinate (30 mg/day) + cofactors folinic acid (500mcg/day), vitamin B12 (200mcg per day), vitamin B6 (200mg/day), vitamin E (40IU/day), vitamin C (60mg per day), and magnesium amino acid chelate (40mg per day). Adherence will be monitored through tablet and capsule counts at fortnightly assessment sessions.

Sponsors

University of Melbourne
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

Aged 18 to 70; fluent in written and spoken English; has the capacity to consent to the study and follow its procedures; fulfills the DSM-IV-TR and DSM-5 diagnostic criteria for Major Depressive Disorder on structured interview (MINI-Plus); presents with mild to moderate depression (MADRS 14-25) at time of study entry; meets SAFER 2.0 criteria for a stable episode of depression.

Exclusion criteria

Currently taking any antidepressant medication (SSRIs, SNRIs, tricyclics, MAOIs, mood stabilisers, etc); current use of any nutraceutical including a multi-vitamin, omega-3, or psychotropic herbal medicine e.g. St John’s wort (a two week washout can occur before inclusion); presents with suicidal ideation ( >1 on MADRS suicidal thoughts domain) at time of study entry; three or more failed trials of pharmacotherapy or somatic therapy (e.g. ECT, TMS) for the current major depressive episode; recently commenced psychotherapy (>4 weeks of stable treatment acceptable); taking warfarin or phenytoin; diagnosis of bipolar disorder I/II or schizophrenia on structured interview (MINI-Plus); a primary clinical diagnosis of a substance/alcohol use disorder within the last 12 months on structured interview (MINI-Plus); known or suspected clinically unstable systemic medical disorder (including cancer, organ failure, or serious cardio/cerebrovascular disease); pregnancy or breastfeeding; not using medically approved contraception (including abstinence) if female and of childbearing age; allergy to seafood.

Outcome results

None listed

Source: ANZCTR · Data processed: Mar 1, 2026