Calabrian functional tomato sauce for the treatment of non-alcoholic fatty liver disease

ISRCTN ISRCTN10483954
DOI https://doi.org/10.1186/ISRCTN10483954
Secondary identifying numbers 124/2022/CE
Submission date
27/05/2025
Registration date
04/06/2025
Last edited
03/06/2025
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Digestive System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Non-alcoholic fatty liver disease (liver steatosis) is the most common cause of liver-related illness and death worldwide. However, no approved drug treatments currently exist for this condition. Lycopene, a powerful antioxidant found in tomatoes, has shown potential benefits for liver health. OsteoCol® is a lycopene-enriched tomato sauce obtained through on-vine ripening, which increases its natural lycopene content. This study aims to evaluate the effect of daily consumption of OsteoCol® tomato sauce as a functional food for the treatment of patients with liver steatosis.

Who can participate?
Adult patients adults of both genders, aged 30-75 years, with a diagnosis of NAFLD.

What does the study involve?
Participants are allocated with a simple randomization using computer-generated random numbers to the intervention or the control group. Ninety-eight adults were randomly assigned to two groups for 12 weeks, as follows:
Intervention group: Participants received a functional tomato sauce (OsteoCol®), naturally enriched with lycopene. Twenty-five participants consumed 80 g/day, while twenty-four participants consumed 160 g every other day.
Control group: Participants received a commercial tomato sauce. Twenty-five participants consumed 80 g/day, while twenty-four participants consumed 160 g every other day.
The primary outcome measured was a change in the amount of intrahepatic fat, assessed by CAP score, after a 12-week intervention between groups.

What are the possible benefits and risks of participating?
The potential benefit is a reduction in the amount of liver fat and an improvement in the severity of NAFLD. There are no risks to participants.

Where is the study run from?
University Magna Grecia (Italy)

When is the study starting and how long is it expected to run for?
From April 2022 to August 2023.

Who is funding the study?
This study was supported by a Grant from Calabria Region, Italy (Bando INGEGNO - POR CALABRIA FESR-FSE 2014/2020-SALNAF “Functional Calabrian Tomato Sauce Naturally Rich in Lycopene for the Treatment of Non-Alcoholic Fatty Liver Disease”).

Who is the main contact?
Prof. Arturo Pujia, pujia@unicz.it

Contact information

Prof Arturo Pujia
Public, Scientific, Principal Investigator

Viale Europa, Campus Universitario S. Venuta
Catanzaro
88100
Italy

ORCiD logoORCID ID 0000-0003-0763-4930
Phone + 39 0961 3697080
Email pujia@unicz.it

Study information

Study designInterventional randomized controlled trial
Primary study designInterventional
Secondary study designRandomised parallel trial
Study setting(s)Community
Study typeTreatment
Participant information sheet 47407_PIS.pdf
Scientific titleSALNAF – Calabrian functional tomato sauce naturally rich in lycopene for the treatment of non-alcoholic fatty liver disease
Study acronymSALNAF
Study objectivesNon-alcoholic fatty liver disease (liver steatosis) is the most common cause of liver-related illness and death worldwide. However, no approved drug treatments currently exist for this condition. Lycopene, a powerful antioxidant found in tomatoes, has shown potential benefits for liver health. OsteoCol® is a lycopene-enriched tomato sauce obtained through on-vine ripening, which increases its natural lycopene content. This study aims to evaluate the effect of daily consumption of OsteoCol® tomato sauce as a functional food for the treatment of patients with liver steatosis.
Ethics approval(s)

Approved 21/04/2022, Comitato Etico Regione Calabria Sezione Area Centro (A.O.U. Mater Domini in Via Tommaso Campanella, 115, Catanzaro, 88100, Italy; +39 (0)961 712 111; comitatoetico@hotmail.it), ref: 124/2022/CE

Health condition(s) or problem(s) studiedTreatment of hepatic steatosis in patients with NAFLD
InterventionParticipants were enrolled after providing written informed consent and were randomly assigned (by computer-generated random numbers) in a 1:1 ratio to one of two treatment groups:
Intervention group: Participants received a functional tomato sauce (OsteoCol®), naturally enriched with lycopene. Twenty-five participants consumed 80 g/day, while twenty-four participants consumed 160 g every other day.
Control group: Participants received a commercial tomato sauce. Twenty-five participants consumed 80 g/day, while twenty-four participants consumed 160 g every other day
Intervention typeOther
Primary outcome measureAmount of intrahepatic fat (i.e. Controlled Attenuation Parameter value, CAP score), assessed by Transient Vibration-Controlled Elastography (Fibroscan), at baseline and 12 weeks
Secondary outcome measuresAt baseline and 12 weeks:
1. Severity of NAFLD, assessed by FibroScan
2. LDL-cholesterol, measured using biochemical assays, after 12 weeks of treatment
3. Inflammation markers, measured using biochemical assays, after 12 weeks of treatment
4. Lipid accumulation (i.e., Lipid Accumulation Product, LAP) and cardiovascular risk markers (i.e., Atherogenic Index of Plasma, AIP)
5. Antioxidant status parameters, evaluated using ELISA kits
Overall study start date21/04/2022
Completion date29/08/2023

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit30 Years
Upper age limit75 Years
SexBoth
Target number of participants98
Total final enrolment98
Key inclusion criteria1. NAFLD defined by a CAP score value ≥248 dB/m
2. Age 30 - 75 years
Key exclusion criteria1. Alcohol intake >30 g/day for men or >20 g/day for women
2. BMI ≥ 35 kg/m²
3. Allergy to tomatoes and nickel
4. HBV, HCV, HIV infection
5. Pregnancy
6. Type 2 Diabetes Mellitus (T2DM)
7. Triglycerides > 250 mg/dL
8. Gastroesophageal reflux disease
9. Hepatic and renal failure
10. Cirrhosis of the liver and other chronic liver diseases
11. Gallstones
12. Chronic intestinal diseases
13. Chronic debilitating diseases
14. Parenteral nutrition
15. Use of specific drugs (amiodarone, antiretrovirals, corticosteroids, methotrexate, tamoxifen, valproate, or lipid-lowering drugs for less than 6 weeks)
16. Use of food supplements or functional foods aimed at reducing hepatic steatosis
Date of first enrolment27/03/2023
Date of final enrolment31/05/2023

Locations

Countries of recruitment

  • Italy

Study participating centre

Nutrition Unit of the “R. Dulbecco” Azienda University Hospital
Viale Europa - Campus Universitario S. Venuta
Catanzaro
88100
Italy

Sponsor information

Regione Calabria
Government

Viale Europa - Zona Tramontana - Cittadella Regionale
Catanzaro
88100
Italy

Phone +39 0961 858524
Email programmazione@regione.calabria.it
Website https://www.regione.calabria.it
ROR logo "ROR" https://ror.org/03swz0133

Funders

Funder type

Government

Regione Calabria - SALNAF - CUP: J39J22005540005

No information available

Results and Publications

Intention to publish date01/06/2025
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPublication and dissemination plan: Publication in journal in English with impact factor; mass media.
IPD sharing planIndividual participant data (IPD) that underlie the results reported in the main publication (including baseline data, primary outcomes, and secondary outcomes) will be made available after de-identification. The data will be accessible beginning 6 months after publication and for up to 5 years, to researchers who provide a methodologically sound proposal. Data will be shared in accordance with participant consent and applicable ethical guidelines. A data-sharing agreement may be required. Requests should be directed to pujia@unicz.it.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet 03/06/2025 No Yes

Additional files

47407_PIS.pdf

Editorial Notes

03/06/2025: Study's existence confirmed by the Comitato Etico Regione Calabria Sezione Area Centro.