ClinicalTrials.gg
CompletedNCT03026569Updated Jan 23, 2017

Orange Juice Consumption in Patients With Hepatitis C

An interventional study of Orange juice (500 mL/d) in Chronic Infection, sponsored by São Paulo State University. Completed at 1 site in Brazil. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2017-01-23.

Sponsored by São Paulo State University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
43
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

This study aimed to verify whether orange juice, source of citrus flavonoids and vitamin C, may contribute to the treatment of patients with chronic hepatitis C.

Read the detailed description

Forty-three patients with chronic hepatitis C who were being treated with pegylated interferon combined with ribavirin, according to the Clinical Protocol and Therapeutic Guidelines for Viral Hepatitis C and Co-infections of the Brazilian Health Ministry were randomly divided into two parallel groups: (1) orange juice (n = 23), which were supplemented with orange juice (500 mL/d) for 8 weeks; (2) control group (n = 20) composed of patients that were not drinking orange juice regularly. The recruitment process began in February 2012, the intervention was carried out from May 2012 to July 2012, and the data analysis started in September 2012. The sample number took into account variances on total cholesterol with a type I error α = 0.05 and a type II error β = 0.2 (80% power) (Dourado et al., 2015). The minimum sample size should have 20 individuals per group (n = 40), considering an approximately 15% dropout rate. Primary and secondary endpoints were the reduction of total cholesterol and modification of biochemical markers, respectively. Kolmogorov Smirnov and Levene test assessed normality and homogeneity of data, respectively. Assessment of the data was performed in all participants on the first and last day of the experiment. All the parameters were compared between the juice group and the control group using General Linear Model of Repeated Measures Analysis. Differences in baseline patients' characteristics between the two groups were analyzed by One-way analysis of variance (ANOVA). The LSD signed rank post-test was used to assess significant changes in parameters after the start of treatment in each group, and the differences were considered statistically significant at p \< 0.05.

02

Conditions studied

  • Chronic Infection

Keywords

  • orange juice
  • chronic hepatitis C
  • biochemical markers
  • oxidative stress
  • nutritional status
  • antioxidants
03

In context

Persistent Infection

44 studies on the registry are indexed under Persistent Infection; 5 are open to participants now.

This study's enrollment of 43 is below the median of 104 across 28 interventional studies indexed under Persistent Infection.

Browse Persistent Infection studies →

Lead sponsor

São Paulo State University is the lead sponsor of 34 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Detection of circulating
  • Negative surface antigen
  • Negative antibodies to

Exclusion criteria

Exclusion Criteria:

  • Co-infection with virus (HBV)
  • Co-infection with hepatitis A virus (HAV)
  • Co-infection with (HIV)
  • Presence of diabetes mellitus,
  • Presence of ascites
  • Elevation in serum ferritin levels
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
43 participants (actual)

Study arms

  • Experimental
    Orange juice

    Orange juice: twenty-three patients with chronic hepatitis C under pegylated interferon combined with ribavirin treatment were supplemented with 100% commercial pasteurized orange juice (500 mL/d) during 8 weeks.

    Other: Orange juice (500 mL/d)

  • No intervention
    Control

    Control: twenty patients with chronic hepatitis C under pegylated interferon combined with ribavirin treatment were monitored for consumption of orange juice during 12 weeks.

Interventions

  • OtherOrange juice (500 mL/d)

    The patients were instructed to drink orange juice in two daily portions during eight consecutive weeks. Patients from both groups were asked to maintain their usual lifestyle, diet, and physical activity, and they were checked weekly by the researcher's team. Assessments of anthropometric data, dietary intake, as well as blood sample collection for biochemical analysis were performed in all participants on the first and last day of the experiment.

06

What researchers measure

Primary outcomes

  1. Total cholesterol

    Time frame: 8 weeks

Secondary outcomes

  1. Body mass

    Time frame: 8 weeks

  2. Body mass index

    Time frame: 8 weeks

  3. % body fat

    Time frame: 8 weeks

  4. Waist circumference

    Time frame: 8 weeks

  5. Glucose

    Time frame: 8 weeks

  6. Insulin

    Time frame: 8 weeks

  7. HOMA-IR

    Time frame: 8 weeks

  8. LDL-C

    Time frame: 8 weeks

  9. HDL-C

    Time frame: 8 weeks

  10. Triglycerides

    Time frame: 8 weeks

  11. CRP

    Time frame: 8 weeks

  12. alkaline phosphatase

    Time frame: 8 weeks

  13. AST

    Time frame: 8 weeks

  14. ALT

    Time frame: 8 weeks

  15. gamma-GT

    Time frame: 8 weeks

  16. TBARS

    Time frame: 8 weeks

  17. ABTS

    Time frame: 8 weeks

07

Study locations

1 site
  • Sao Paulo State University "Julio de Mesquita Filho"
    Araraquara, Sao Paulo 14800-903, Brazil
08

References and documents

Publications

  • Dourado GK, Cesar TB. Investigation of cytokines, oxidative stress, metabolic, and inflammatory biomarkers after orange juice consumption by normal and overweight subjects. Food Nutr Res. 2015 Oct 20;59:28147. doi: 10.3402/fnr.v59.28147. eCollection 2015. PubMed 26490535 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 23, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03026569
Lead sponsor
São Paulo State University
Responsible party
Thais Cesar (PhD, São Paulo State University) — Principal investigator
First posted
Jan 20, 2017
Start date
May 2012
Primary completion
Jul 2012
Completion
Sep 2012
Last update
Jan 23, 2017

Study contacts

Thais B Cesar, Ph.D
principal investigator · Sao Paulo State University "Julio de Mesquita Filho"

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2017. You cannot join it, but the record below documents what was studied.

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