Beneficial Effects of Supplementation With CRONILIEF™ (Palmitoylethanolamide Phospholipids) in Diabetic Subjects With Neuropathic Pain.

February 12, 2026 updated by: Azienda di Servizi alla Persona di Pavia

Randomised, Placebo-controlled Study to Evaluate the Beneficial Effects of Supplementation With CRONILIEF™ (Palmitoylethanolamide Phospholipids), in Addition to Standard Therapy, in Diabetic Subjects With Neuropathic Pain.

This study aims to evaluate the potential benefit of an oral nutritional supplement based on CRONILIEF™ (Palmitoylethanolamide Phospholipids) in diabetic subjects with neuropathic pain, compared to a placebo.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
70

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Satisfactory metabolic compensation;
  • Presence of moderate symptoms of painful diabetic neuropathy as assessed by the LANSS questionnaire (score ≥12);
  • Taking antidiabetic drugs except insulin;
  • Subjects willing and able to comply with scheduled study visits, the treatment plan, and all procedures outlined in the study.

Exclusion Criteria:

  • Previous intolerance to a component of the nutraceuticals tested;
  • Individuals with type I diabetes;
  • Uncontrolled diabetes, severe cardiovascular and cerebrovascular diseases;
  • Severe neuropathic symptoms as indicated by the LANSS score;
  • Individuals undergoing insulin treatment;
  • Peripheral neuropathy due to diseases other than diabetes mellitus;
  • History of malignant neoplasm in the 5 years prior to enrolment in the study;
  • Serious neurological, psychological or psychiatric disorders;
  • Clinical signs or history of significant impairment of hepatic or renal function, peptic ulcer or coagulation disorders;
  • Any clinically relevant or unstable disease (e.g., active malignancies, immune system disorders) whose sequelae or treatments could contraindicate participation in the study or interfere with the study's evaluation parameters, in the investigator's judgement; Any disease that could significantly affect the study's outcome, including, but not limited to, chronic medical conditions, psychological disorders, or substance abuse;
  • Alcohol or drug abuse;
  • Women of childbearing age who do not use established contraceptive methods;
  • Pregnancy and breastfeeding.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Group A: Cronilief™ supplementation
Cronilief™ (300 mg) supplementation
Dietary supplement: Cronilief™ (300 mg)
  • Week 1: Cronilief™ (300 mg), 2 tablets per day, single administration
  • Weeks 2-8: Cronilief™ (300 mg), 1 tablet per day
Placebo Comparator: Group B: Placebo
Placebo
Dietary supplement: Placebo
  • Week 1: Placebo, 2 tablets per day, single administration
  • Weeks 2-8: Placebo, 1 tablet per day.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Evaluate specific symptoms of neuropathic pain in diabetic subjects
Time Frame: Baseline (T0), 4 week (T1), 8 week (T2) and one month after the end of integration

Evaluate the effectiveness of Cronilief™ supplementation versus placebo, in combination with standard therapy, in improving specific symptoms of neuropathic pain in diabetic subjects after 8 weeks of supplementation, using the Leeds Assessment of Neuropathic Symptoms and Signs (LANSS) questionnaire as an assessment tool.

The LANSS score ranges from 0 to 24, with higher scores indicating a greater neuropathic pain component (worse outcome). A score ≥12 is indicative of neuropathic pain.
Baseline (T0), 4 week (T1), 8 week (T2) and one month after the end of integration

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Evaluate sleep quality
Time Frame: Baseline (T0), 4 week (T1), 8 week (T2) and one month after the end of integration
Assess the impact of Cronilief™ supplementation on sleep quality, measured using the Pittsburgh Sleep Quality Index (PSQI). The PSQI total score ranges from 0 to 21, with higher scores indicating worse sleep quality (poorer outcome). A total score >5 is indicative of poor sleep quality.
Baseline (T0), 4 week (T1), 8 week (T2) and one month after the end of integration
Evaluate emotional states
Time Frame: Baseline (T0), 4 week (T1), 8 week (T2) and one month after the end of integration

Assess the impact of Cronilief™ supplementation on emotional states related to stress, anxiety and depression through the administration of the Depression Anxiety Stress Scales (DASS-21).

The DASS-21 consists of three subscales (Depression, Anxiety, Stress), each ranging from 0 to 21. Higher scores indicate greater severity of symptoms (worse outcome).
Baseline (T0), 4 week (T1), 8 week (T2) and one month after the end of integration
Incidence of Adverse Events (AEs) and Serious Adverse Events (SAEs)
Time Frame: Baseline (T0), 4 week (T1), 8 week (T2) and one month after the end of integration
Assess the safety of Cronilief™ by monitoring AEs (Adverse Events) and SAEs (Serious Adverse Events) evaluated by investigators and reported in accordance with current regulations.
Baseline (T0), 4 week (T1), 8 week (T2) and one month after the end of integration

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Azienda di Servizi alla Persona di Pavia

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 15, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 15, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 15, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 22, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 22, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 29, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 17, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 12, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 1812/28082025

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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