NCT05041179

Brief Summary

To evaluate the effect of different doses of PRUVIN® (N-acetylcysteine \[NAC\] and glycine) on reduced glutathione levels in healthy elderly subjects

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
128

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Apr 2019

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2019

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2020

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2020

Completed
1.3 years until next milestone

First Submitted

Initial submission to the registry

September 2, 2021

Completed
8 days until next milestone

First Posted

Study publicly available on registry

September 10, 2021

Completed
Last Updated

October 22, 2024

Status Verified

October 1, 2024

Enrollment Period

1 year

First QC Date

September 2, 2021

Last Update Submit

October 18, 2024

Conditions

Keywords

Glutathione

Outcome Measures

Primary Outcomes (1)

  • Total reduced glutathione

    Total reduced glutathione (GSH-T) in whole-blood normalized to hematocrit

    2 weeks

Secondary Outcomes (3)

  • Free reduced glutathione

    2 weeks

  • Hematocrit

    2 weeks

  • Lipid oxidation

    2 weeks

Study Arms (4)

7.2 g of actives (3.6 g NAC and 3.6 g glycine) per day split in two doses (arm A)

ACTIVE COMPARATOR

* First dose (1.8 g NAC and 1.8 g glycine) consumed in the morning * Second dose (1.8 g NAC and 1.8 g glycine) taken in the evening

Dietary Supplement: Pruvin R

4.8 g of actives (2.4 g NAC and 2.4 g glycine) per day split in two doses (arm B)

ACTIVE COMPARATOR

* First dose (1.2 g NAC and 1.2 g glycine, +1.2 g placebo) consumed in the morning * Second dose (1.2 g NAC and 1.2 g glycine, +1.2 g placebo) taken in the evening

Dietary Supplement: Pruvin R

2.4 g of actives (1.2 g NAC and 1.2 g glycine) per day split in two doses (arm C)

ACTIVE COMPARATOR

* First dose (0.6 g NAC and 0.6 g glycine, +2.4 g placebo) consumed in the morning * Second dose (0.6 g NAC and 0.6 g glycine, +2.4 g placebo) taken in the evening

Dietary Supplement: Pruvin R

Placebo control (7.2 g isomaltulose)(arm D)

PLACEBO COMPARATOR

* First dose (3.6 g isomaltulose) consumed in the morning * Second dose (3.6 g isomaltulose) taken in the evening

Other: Isomaltulose

Interventions

Pruvin RDIETARY_SUPPLEMENT

Combination of N-acetylcysteine an glycine

2.4 g of actives (1.2 g NAC and 1.2 g glycine) per day split in two doses (arm C)4.8 g of actives (2.4 g NAC and 2.4 g glycine) per day split in two doses (arm B)7.2 g of actives (3.6 g NAC and 3.6 g glycine) per day split in two doses (arm A)

Placebo as comparator to intervention

Placebo control (7.2 g isomaltulose)(arm D)

Eligibility Criteria

Age20 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years, both inclusive
  • male and female
  • Considered generally healthy upon completion of medical history and screening safety assessments, as judged by the Investigator.
  • BMI \>18.5 and \<30.0 kg/m2
  • HbA1c \<5.7 %
  • Informed consent as documented by signature

You may not qualify if:

  • Receipt of any medicinal product or nutritional product in clinical development within 30 days before enrollment in this trial.
  • Any history or presence of clinically relevant comorbidity, as judged by the Investigator.
  • Signs of acute illness as judged by the Investigator.
  • Any serious systemic infectious disease during four weeks prior enrollment in this trial
  • Clinically significant abnormal screening laboratory tests, as judged by the Investigator.
  • AST and/or ALT \> 2 times the upper limit of normal.
  • Elevated serum creatinine values above the upper limit of normal.
  • Systolic blood pressure \< 90 mmHg or \>139 mmHg and/or diastolic blood pressure \< 50 mmHg or \>89 mmHg (excluding white-coat hypertension; therefore, a repeat test showing results within range will be acceptable).
  • Heart rate at rest outside the range of 50-90 beats per minute.
  • Clinically significant abnormal standard 12-lead electrocardiogram (ECG) after 5 minutes resting in supine position at screening, as judged by the Investigator.
  • Significant history of alcoholism or drug abuse as judged by the Investigator consuming more than 24 grams alcohol/day (for males), 12 grams alcohol/day (for females) on average.
  • Smoking or use of nicotine substitute products.
  • Any medication (prescription and non-prescription drugs) within 14 days before screening.
  • Blood donation or blood loss of more than 500 mL within the last 3 months prior to screening.
  • Mental incapacity, unwillingness or language barriers precluding adequate understanding or co-operation.
  • +25 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Profil Institut für Stoffwechselforschung GmbH

Neuss, 41460, Germany

Location

Related Publications (1)

  • Lizzo G, Migliavacca E, Lamers D, Frezal A, Corthesy J, Vinyes-Pares G, Bosco N, Karagounis LG, Hovelmann U, Heise T, von Eynatten M, Gut P. A Randomized Controlled Clinical Trial in Healthy Older Adults to Determine Efficacy of Glycine and N-Acetylcysteine Supplementation on Glutathione Redox Status and Oxidative Damage. Front Aging. 2022 Mar 7;3:852569. doi: 10.3389/fragi.2022.852569. eCollection 2022.

MeSH Terms

Interventions

isomaltulose

Study Officials

  • Ulrike Hövelmann, MD

    Profil Institut für Stoffwechselforschung GmbH

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
PARALLEL
Model Details: Double-blind, randomized, Placebo-controlled
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 2, 2021

First Posted

September 10, 2021

Study Start

April 1, 2019

Primary Completion

April 1, 2020

Study Completion

May 1, 2020

Last Updated

October 22, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will not share

Locations