Evidence map›Paper›PMID 33317621›Full record

ArticleBMC pharmacology & toxicology2020

Pharmacokinetic study of a novel oral formulation of S-adenosylmethionine (MSI-195) in healthy subjects: dose escalation, food effect and comparison to a commercial nutritional supplement product.

Beth R Cameron, Ludvina Ferreira, I David MacDonald

Registry-linked trialOpen access · goldAbstract readComparative Study
In one paragraph

Article in BMC pharmacology & toxicology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04623034 (A Phase 1, Two Stage, Open Label, Randomized, Single Dose, Comparative Study to Evaluate the Safety and Pharmacokinetics of MSI-195 to a Commercial S-Adenosylmethionine Product in Healthy Volunteers), which is not on this map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 31% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04623034 phase1completednot on this map

A Phase 1, Two Stage, Open Label, Randomized, Single Dose, Comparative Study to Evaluate the Safety and Pharmacokinetics of MSI-195 to a Commercial S-Adenosylmethionine Product in Healthy Volunteers

TypeinterventionalSponsorMSI Methylation Sciences, Inc.Ran2013 to 2013Enrolled34ConditionsMajor Depressive DisorderArmsAdemetionine
3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Beth R CameronMSI Methylation Sciences Inc, Suite 300, 15300 Croydon Drive, Surrey, BC, V3Z 0Z5, Canada.
Ludvina FerreiraMSI Methylation Sciences Inc, Suite 300, 15300 Croydon Drive, Surrey, BC, V3Z 0Z5, Canada.
I David MacDonaldMSI Methylation Sciences Inc, Suite 300, 15300 Croydon Drive, Surrey, BC, V3Z 0Z5, Canada. dmacdonald@methylationsciences.com.
Mott MacDonald (United Kingdom) · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA novel, high bioavailability oral, enteric coated tablet formulation of S-adenosylmethionine (MSI-195) has been developed for life science application. The present research reports on a Phase 1 study to (i) determine the safety of single doses of MSI-195 (ii) to determine the dose proportionality of MSI-195 at doses of 400, 800 and 1600 mg (iii) determine the pharmacokinetics of MSI-195 compared with a commercial reference product (SAM-e Complete™) over 24 h and (iv) to determine the effect of food on the pharmacokinetic profile of MSI-195 in human subjects.

methodsThis study was a pharmacokinetic and safety evaluation of MSI-195 and a commercial comparator broken into two stages. The first stage was an exploratory single ascending dose design of MSI-195 in 8 healthy normal male volunteers. The second stage was a single dose evaluation, targeting 26 male and female volunteers at set doses of MSI-195 and commercial comparator in a cross-over design followed by a food effect study on MSI-195. Plasma samples were collected and assayed for S-adenosylmethionine using a validated HPLC method with MS/MS detection. The main absorption and disposition parameters were calculated using a non-compartmental approach with a log-linear terminal phase assumption. Statistical analysis was based on an ANOVA model or t test as appropriate.

resultsMSI-195 was found to be generally well tolerated with an adverse event profile similar to the SAM-e Complete™ comparator product. The relative bioavailability of MSI-195 was approximately 2.8-fold higher than SAM-e Complete based on area under the curve (AUC) ratios for the two products and the MSI-195 formulation exposure based on AUC was found to be approximately dose proportional. There was a significant food effect for MSI-195 with a delayed time to maximum absorption T

conclusionsThe overall conclusion was that MSI-195 was well tolerated and has markedly higher bioavailability compared with both the SAM-e Complete™ commercial product tested and, on a per mg basis, products reported in other literature.

trial registrationClinicalTrials.gov, identifier NCT04623034 . Retrospectively registered Nov 9, 2020.

Indexed as

Dietary SupplementsAdministration, OralAdultCross-Over StudiesDose-Response Relationship, DrugDrug CompoundingFastingFemaleFood-Drug InteractionsHealthy VolunteersHumansMaleMiddle AgedS-AdenosylmethionineYoung AdultS-AdenosylmethionineAdemetionineAdometFormulationPharmacokineticsRelative bioavailabilityS-adenosylmethionine

Identifiers

PMID33317621
PMCPMC7734772
OpenAlexW3111435165

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.