A Phase 3 interventional study of N0750 and Cymbalta® in Painful Diabetic Peripheral Neuropathy (PDPN), sponsored by Eurofarma Laboratorios S.A.. Withdrawn at 1 site in Brazil. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-12-18.
Sponsored by Eurofarma Laboratorios S.A. · Phase 3, Interventional, and Treatment
A phase 3, prospective, adaptive, randomized, multicenter, double-blind, triple-masked, parallel clinical trial to evaluate the efficacy and safety of N0750 in relieving pain associated with painful diabetic peripheral neuropathy (PDPN).
The objective of this clinical trial is to demonstrate the superiority of treatment with N0750 compared to monotherapy with Cymbalta® (duloxetine hydrochloride 60 mg, delayed-release capsule) and Lyrica® (pregabalin 150 mg, hard capsule, given twice daily for a total daily dose of 300 mg).
The clinical trial population will consist of patients of both sexes, diagnosed with PDPN for at least 3 months, confirmed by the presence of signs and symptoms in the Neuropathic Impairment Score (NIS) and Neuropathic Symptom Score (NSS), respectively, and with pain ≥ 6 points on the Numerical Scale (11 points [0-10]).
The primary objective of this clinical trial is to evaluate the reduction in pain intensity associated with Diabetic Peripheral Neuropathy (DPN). The primary endpoint of the trial is the change from baseline (Randomisation Visit [RV]) at the end of 12 weeks of treatment (Visit 4) in the weekly mean pain intensity in the last 24 hours, as assessed by the Numerical Rating Scale (11 points [0-10]).
8,290 studies on the registry are indexed under Diabetes Mellitus; 1,077 are open to participants now.
Browse Diabetes Mellitus studies →Eurofarma Laboratorios S.A. is the lead sponsor of 64 studies on the registry; 7 are open to participants now.
Counted across the registry records on this site, refreshed daily.
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.
Exclusion Criteria:
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.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Washout period
A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
NYHA class (heart failure)
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HbA1c
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECG (electrocardiogram)
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
* Phase 1 of the Dosage Titration: 3 capsules/day * Phase 2 of the Dosage Titration: 5 capsules/day * Treatment: 4 capsules/day * Withdrawal: 4 capsules/day
Drug: N0750
* Phase 1 of the Dosage Titration: 3 capsules/day * Phase 2 of the Dosage Titration: 5 capsules/day * Treatment: 4 capsules/day * Withdrawal: 4 capsules/day
Drug: Cymbalta®
* Phase 1 of the Dosage Titration: 3 capsules/day * Phase 2 of the Dosage Titration: 5 capsules/day * Treatment: 4 capsules/day * Withdrawal: 4 capsules/day
Drug: Lyrica®
Evaluation of the efficacy of N0750 compared to Cymbalta® and Lyrica® in reducing pain intensity in patients with painful diabetic peripheral neuropathy
Change from baseline at the end of 12 weeks of treatment in the weekly average pain intensity in the last 24 hours using Numerical Rating Scale (11 points \[0-10\]), where higher scores mean a worse outcome.
Time frame: 84 days
Evaluation of the efficacy of N0750 compared to Cymbalta® and Lyrica® in reducing pain in patients with painful diabetic peripheral neuropathy
Change from baseline (VR) at each week of treatment (week 1 to week 12) in the weekly average pain intensity in the last 24 hours by the Numerical Rating Scale (11 points \[0-10\]). Proportion of subjects showing pain reduction ≥ 30% at the end of 12 weeks of treatment (V4) compared to baseline (VR). Proportion of subjects showing pain reduction ≥ 50% at the end of 12 weeks of treatment (V4) compared to baseline (VR).
Time frame: 84 days
Evaluation of the efficacy of N0750 compared to Cymbalta® and Lyrica® on subject perception of overall change in painful diabetic peripheral neuropathy
Change from baseline at the end of 12 weeks of treatment on the Patient Global Impression of Change questionnaire - PGIC-C (8 points \[0-7\]), where higher scores mean a better outcome.
Time frame: 84 days
Evaluate the safety profile of N0750 compared to Cymbalta® and Lyrica®
Frequency and intensity of AEs (Adverse Event), TEAEs (Treatment Emergent Adverse Event), SAEs (Serious adverse event). All safety analyses will be based on all subjects who received at least one dose of the trial treatments.
Time frame: 84 days
This study is withdrawn, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.