RecruitingPhase 3NCT04666714

Efficacy and Safety of Praga Formulation in the Treatment of Neuropathic Pain

National, Multicentre, Randomized, Double-blind, Double-dummy Phase III Clinical Trial to Evaluate the Efficacy and Safety of Praga Formulation in the Treatment of Neuropathic Pain


Sponsor

EMS

Enrollment

136 participants

Start Date

May 15, 2023

Study Type

INTERVENTIONAL

Conditions

Summary

The purpose of this study is to evaluate the efficacy and safety of Praga formulation in the treatment of neuropathic pain.


Eligibility

Min Age: 18 Years

Inclusion Criteria10

  • Ability to confirm voluntary participation and agree to all trial purposes by signing and dating the informed consent forms;
  • Participants of 18 years and older;
  • Diagnosis of type 2 or type 1 diabetes for at least 1 year;
  • No change in antidiabetic medication winthin 3 months;
  • Diagnosis of painful sensorimotor diabetic polyneuropathy;
  • Presence of at least one of the following symptoms: i. numbness in the toes, feet and / or legs; ii. paresthesias (tingling and / or neuropathic pain) in the toes, feet and / or legs.
  • Presence of at least one of the following signs: i. symmetrical hypoesthesia of tactile, thermal or painful sensation (s) in the distal region of the legs; ii. hypoactive or abolished achilles reflexes;
  • Glycated hemoglobin ≤ 11%;
  • Score ≥ 12 points on the LANSS pain scale (Leeds Assessment of Neuropathic Symptoms and Signs); j) Participants with moderate to severe pain, a score ≥ 4 on the numerical pain scale (0-10 points);
  • Participants with moderate to severe neuropathic pain who recorded in the diary a minimum of 4 of the 7 days from the period to assess the baseline pain score.

Exclusion Criteria14

  • Known hypersensitivity to the formula components used during the clinical trial;
  • History of alcohol and/or substance abuse within 2 years;
  • Pregnant women, breastfeeding or planning to become pregnant, or women with the potential to become pregnant who are not using a reliable method of contraception;
  • History of pernicious anemia, uncontrolled hypothyroidism, chronic hepatitis B;
  • HIV diagnosis;
  • History of neurological disorder unrelated to diabetic neuropathy;
  • Non-responders to previous pregabalin treatment;
  • High variability in the baseline pain score;
  • Other conditions that may alter the sensitivity in the affected dermatome or in the area involved in neuropathic pain that may confuse pain assessment;
  • Severe psychiatric condition;
  • Cognitive decline that affect the participant from correctly answering the scales and questionnaires;
  • Clinically relevant cardiac abnormalities, which at the researcher's discretion represent a risk to participation in the trial;
  • Participant who has amputated lower limb due to complications from diabetes;
  • Renal failure, defined by the estimated glomerular filtration rate \[eGFR\] <60 mL / min / 1.73 m2.

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Interventions

DRUGPraga formulation

Praga formulation tablet

OTHERPlacebo pregabalin 75mg

Placebo pregabalin 75mg tablet

OTHERPlacebo Pregabalin 150mg

Placebo Pregabalin 150mg tablet

DRUGPregabalin 75mg

Pregabalin 75mg tablet

DRUGPregabalin 150mg

Pregabalin 150mg tablet

OTHERPlacebo Praga formulation

Placebo Praga formulation tablet


Locations(1)

Allegisa

Campinas, São Paulo, Brazil

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NCT04666714


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