Reneos

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Reneos

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Reneos

Quick Facts: Reneos

Property Description
Active ingredient Repaglinide
Form Oral tablet
Pharmacological class Meglitinide class (Glinide)
Common use Blood sugar regulation (Type 2 diabetes)
Origin Synthetic (Piperidine derivative)

What is Reneos and What Type of Medicine is it?

Reneos is a prescription-only oral blood glucose-lowering drug used in the management of high blood sugar associated with Type 2 diabetes mellitus. The active component is the single-ingredient chemical substance Repaglinide (C27H36N2O4), which is a synthetic compound derived from the piperidines chemical class.

Pharmacologically, Reneos is classified as an Antidiabetic agent belonging to the Meglitinide class, often designated as a Glinide. This drug class is clinically recognized for its rapid effect on post-meal glucose. Repaglinide is a short-acting insulin secretagogue, meaning it is designed to promote the timely release of the body's own insulin to help process meals, which is essential for managing the condition.


Composition, Form, and General Therapeutic Purpose

The oral tablet formulation of Reneos delivers the active compound Repaglinide alongside necessary solid pharmaceutical excipients, facilitating a conventional oral route of administration. The active substance is categorized under the ATC code A10BX02.

The general therapeutic purpose of Reneos is to provide a rapid onset and short duration of action. This fast-acting characteristic allows the drug to focus its primary antihyperglycemic effect on the temporary elevation of sugar that occurs immediately after a meal. This targeted action helps adult patients achieve better overall blood glucose level control by specifically regulating meal-induced hyperglycemia.

Regulatory References

  1. European Medicines Agency (EMA)
  2. NIH StatPearls

What side effects are possible with Reneos?

Possible side effects and safety information

The regulatory safety profile for Reneos (Repaglinide) is based on its function as a blood glucose-lowering medication. The spectrum of possible side effects is classified by frequency and involves several physiological systems, as detailed in official government regulatory documents.


Frequency and System Classification

The defining risk, classified as Very Common, is hypoglycemia (low blood sugar), which is the most frequent adverse reaction linked to its mechanism. Effects classified as Common include abdominal pain and diarrhea, while Uncommon effects may involve nausea, vomiting, or constipation.

Less frequently, the labeling documents Rare events such as severe hepatic dysfunction, increases in hepatic enzymes, and generalized allergic reactions, including rash. Very Rare occurrences include anaphylactic reactions. Adverse reactions are grouped across system-organ classes, primarily Metabolism and Nutrition Disorders (hypoglycemia) and Gastrointestinal Disorders.


Serious Reactions and Safety Constraints

The official label identifies severe hypoglycemia as a serious adverse reaction that may lead to loss of consciousness or coma. Severe hepatic dysfunction is also documented as a rare but clinically significant adverse event.

Population-specific safety considerations include formal contraindications for its use. Reneos must not be used in individuals with severe hepatic impairment due to the risk of increased drug exposure and adverse effects. It is also contraindicated in patients with Type 1 diabetes mellitus and diabetic ketoacidosis (DKA). The regulatory text notes that visual disturbance may be transient and can appear at the start of treatment due to changes in blood glucose levels.

Overdose and Emergency Response

Reneos Overdose and When to Seek Help

Overexposure to Reneos is officially documented as potentially causing severe, prolonged hypoglycemia (critically low blood sugar), which is classified by regulatory authorities as a life-threatening event. The documented overdose profile dictates a requirement for immediate, urgent medical intervention.

Property Official Regulatory Statement
Documented Overdose Presentations The primary clinical signs stem from severe hypoglycemia and include confusion, seizure (convulsions), extreme weakness, tremors (shakiness), sweating, blurred vision, and a fast heartbeat.
Serious / Life-Threatening Outcomes Severe hypoglycemia can lead to loss of consciousness, coma, irreversible brain damage, and ultimately death.
Emergency-Response Statements Regulatory documents mandate that individuals seek emergency medical attention or contact the regional Poison Control Centre immediately when an overdose is suspected, even if symptoms are not yet present.
Supportive Management Management is symptomatic and supportive; treatment for hypoglycemia involves administering a fast-acting source of sugar. For severe cases, immediate hospitalization is required for the administration of intravenous glucose or a glucagon injection.

No specific antidote is known or explicitly listed in the regulatory documents. Because of the potential for prolonged effects, patients who remain symptomatic may require glucose monitoring and clinical observation for 24 hours.

Therapeutic Uses of Reneos

Reneos (REN001) is an investigational therapeutic agent in development for the management of certain rare, inherited conditions known as genetic mitochondrial diseases. These disorders often involve deficiencies in the body's mitochondrial energy production, leading to various symptoms, particularly those affecting muscle health.

Quick Facts

  • Primary Mitochondrial Myopathies (PMM): May support daily function in individuals managing myopathy related to this condition.
  • Fatty Acid Oxidation Disorders (FAOD): Under investigation to address the underlying metabolic issues associated with FAOD, including long-chain L-3-hydroxyacyl-CoA dehydrogenase (LCHAD) deficiency.

The use of Reneos is intended to help modify the disease course in these specific populations. It may contribute to the maintenance of muscle function and aims to help improve overall quality of life by addressing the profound defects related to these genetic conditions. The agent is being developed to potentially support how the mitochondria function. This medicine has received Orphan Drug Designation for the treatment of both FAOD and PMM, reflecting the significant unmet medical need for these patient groups.

Clinical studies are currently progressing to further evaluate the potential clinical outcomes in individuals with these specific genetic myopathies.

Regulatory References

  1. NIH MedlinePlus guidance

Eligibility and Restrictions for Use

Reneos is strictly regulated for use in adult patients diagnosed with Type 2 Diabetes Mellitus. Its application is governed by several official population eligibility rules and absolute exclusions detailed in regulatory labeling.

Populations Not Eligible (Contraindicated)

The medicine must not be used by individuals with Type 1 Diabetes Mellitus or those experiencing acute conditions like Diabetic Ketoacidosis (DKA). It is also strictly contraindicated in patients with known hypersensitivity to the drug or any of its components. Furthermore, the official label prohibits use in patients with severe hepatic function disorder and concomitant use of the medicine gemfibrozil.

Age-Based and Physiological Restrictions

Use is restricted solely to the adult population. Safety and efficacy have not been established in children and adolescents under 18 years of age, and use is not recommended. Similarly, no clinical studies have been conducted in patients over 75 years of age, leading to a recommendation against use in this subgroup. For patients with severe renal impairment, use requires special caution and careful initial management. Finally, regulatory bodies classify use during pregnancy and lactation as not recommended or advised to be avoided.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documentation structures the interaction profile of Reneos (REN001) around its potential relationship with the body's major metabolic enzymes and drug transport systems. These interactions may change how much Reneos is available in the body or, conversely, how other medicines are handled.

Key interaction domains that form the basis of the official profile include medicines that affect or are affected by:

  • Cytochrome P450 (CYP) Enzymes: This includes strong inhibitors of enzymes like CYP2C8, CYP3A, and CYP2C9, which are responsible for the breakdown of many drugs. Inhibitors in this category, such as Gemfibrozil and Fluconazole, can increase the body's exposure to Reneos.
  • Drug Transporters: Interactions are also documented for medicines that affect major drug transporters, including P-glycoprotein (P-gp), OATP1B, and BCRP. Examples of medicines studied in this context are Fexofenadine and Rosuvastatin.
  • Enzyme Inducers: Medicines that induce or increase the activity of CYP enzymes, such as Carbamazepine, are assessed for their potential to decrease the effectiveness of Reneos by speeding up its clearance from the body.

The official constraints require that when Reneos is taken with certain strong inhibitors, concentration monitoring and dosage adjustments may be necessary to manage potential increases in systemic exposure and maintain safety. Conversely, co-administration with enzyme inducers requires assessment for potential reduced exposure.

Mechanism of Action

How Reneos Works: Mechanism of Action


Direct mathbfKATP Channel Blockade and beta-Cell Modulation

Reneos (Repaglinide) exerts its action by functioning as a short-acting inhibitor that targets the ATP-sensitive potassium channel (mathbfKATP channel) on pancreatic beta-cells. This molecular interaction immediately closes the channel, initiating a sequence of electrical changes known as membrane depolarization. The mechanism is functionally dependent on the presence of viable beta-cells capable of synthesizing and storing insulin.


️ The Insulin Exocytosis and Glucose Transport Cascade

The depolarization step triggers the opening of adjacent voltage-gated mathbfCa^2+ channels, causing a rapid influx of calcium ions (mathbfCa^2+). This mathbfCa^2+ acts as the critical internal signal to force the exocytosis (release) of stored insulin granules into the bloodstream. Due to its rapid binding kinetics, this mechanism produces a prompt, short-lived surge of insulin that increases the rate of glucose transport into peripheral tissues, resulting in a decrease in plasma glucose concentration aligned with the physiological timeline of nutrient absorption.


Dosage and Administration Information

How to Use Reneos: Official Administration Guidelines

Administration of Reneos, which contains the active ingredient Repaglinide, is governed by official instructions centered on meal-synchronization and strict dose boundaries. The medicine is taken exclusively by the oral route as a tablet.

The central principle of use dictates that the medicine must be taken within 30 minutes before each main meal, typically resulting in a frequency of two to four times daily. If a meal is skipped, the corresponding dose of Reneos must also be skipped.

Dosing and Adjustment Rules

Official labeling defines specific dosing and titration parameters. For adults, the usual starting dose is 0.5 mg or 1 mg to 2 mg before each main meal, depending on prior treatment status and blood sugar control levels. The dose range before a single meal is 0.5 mg to 4 mg, and the maximum total daily dose must not exceed 16 mg. Adjustments to the dose can only be made after a minimum interval of one week has passed to allow proper assessment of the response.

Special Use Case Official Dosing Guideline
Severe Renal or Hepatic Impairment Requires a 0.5 mg starting dose and cautious, slow dose titration.
Concomitant Cyclosporine Use Maximum total daily dose is restricted to 6 mg.
Pediatric Patients Safety and efficacy in those under 18 years are not established.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Reneos (Investigational Agent REN001)

The clinical evaluation of Reneos (REN001), an investigational agent, has focused primarily on two rare, inherited conditions: Primary Mitochondrial Myopathies (PMM) and Long-Chain Fatty Acid Oxidation Disorders (LC-FAOD). The evidence base for this investigational agent is derived from studies that monitored parameters in patients over defined time intervals.


Evidence Landscape for Primary Mitochondrial Myopathies (PMM)

Research exploring the use of Reneos for PMM centered around a key study known as the STRIDE trial, which was a large, randomized, double-blind, placebo-controlled Phase 2b trial. This type of study design involved a randomized, double-blind comparison of the investigational agent against an inactive substance (placebo). The trial included adult patients with PMM, predominantly those with mitochondrial DNA (mtDNA) defects.

Researchers in the STRIDE study focused on outcomes related to functional status, such as changes in the distance walked during the 12-Minute Walk Test (12MWT). Studies also examined patient-reported outcomes describing perceived discomfort and fatigue. Following the completion of the 24-week study period, regulatory statements described that the trial's main efficacy endpoints were not met. This outcome led to the subsequent suspension of all further clinical development activities for Reneos in PMM.


Research in Long-Chain Fatty Acid Oxidation Disorders (LC-FAOD)

For LC-FAOD, the available evidence is restricted to early-stage, short-term research studies, which are smaller in scale and designed primarily to evaluate initial tolerability and safety. Exploratory functional parameters and specific metabolic markers relevant to LC-FAOD, were monitored in these studies. However, findings from these initial studies are considered limited, as they were not designed to provide comprehensive insight into long-term changes or durability of observations.


Research Gaps and Remaining Uncertainty

The most advanced research for PMM (the STRIDE trial) reported that its primary and secondary efficacy endpoints were not met. All clinical development activities for Reneos were terminated following the PMM trial results. This decision means that large-scale, randomized trials in LC-FAOD were not conducted. Because the clinical program has been suspended, data on long-term effects are limited, and the results apply only to the populations studied.

Frequently Asked Questions (FAQ)

Common questions about Reneos (FAQ)

Q: How is Reneos different from other treatments for the same condition?

A: Reneos belongs to the meglitinide class of oral blood glucose-lowering drugs. Official descriptions of the medicine highlight its rapid onset and short duration of action. This means it works quickly to promote the release of insulin primarily in response to a meal, which differs from the action profile of other types of diabetes medications.


Q: When can a person typically expect to see the effects of Reneos?

A: Pharmacokinetic data from official sources indicate that the medication is rapidly absorbed after ingestion, with the highest concentration in the blood typically reached within about one hour. The greatest effect on lowering blood sugar is typically observed within approximately 3 to 3.5 hours, according to pharmacokinetic studies.


Q: Does taking Reneos require any regular laboratory monitoring or blood tests?

A: Monitoring of blood glucose levels is considered an essential part of managing the condition while using this medication. Official guidelines note the importance of increased frequency of blood glucose testing for patients who may be at a higher risk of developing low blood sugar (hypoglycemia) or those with reduced symptom awareness.


Q: What should I do if I think Reneos is not working for me?

A: Official documents define two types of situations where the medicine may not be fully effective: primary failure (ineffective when first started) or secondary failure (loss of response over time). If inadequate blood glucose lowering is detected at the recommended maximum dose, a reassessment of the existing treatment plan may be indicated.


Q: Why do some people feel nauseous when they first start taking Reneos?

A: Gastrointestinal issues like nausea, vomiting, and constipation are documented as Uncommon side effects of Reneos. These effects are typically observed at the beginning of treatment, as documented in the official adverse reaction summaries.


Q: Is Reneos considered a long-term treatment or a short-term treatment?

A: The official indication for Reneos is for the management of Type 2 diabetes. As this condition is generally considered a chronic, long-term process, the medication is intended to be used as part of ongoing treatment, alongside diet and exercise.


Q: How is Reneos eliminated or cleared from the body?

A: Regulatory information indicates that the active substance is extensively processed (metabolized) in the liver by specific enzymes. Approximately 90% of a dose is then eliminated from the body through the feces, with less than 10% being eliminated in the urine.


Q: Is it common to feel tired or dizzy while taking Reneos?

A: The medicine works by lowering blood sugar. If blood sugar levels fall too low (hypoglycemia), symptoms can include tiredness (drowsiness) or dizziness. These feelings are included in the documented warning signs associated with low blood sugar.


Q: Can Reneos affect my ability to drive or operate machinery?

A: Official patient information explicitly notes that the ability to drive or use machinery may be affected by changes in blood sugar. Official warnings note that episodes of low blood sugar may increase the potential risk.


Q: Can people who drink alcohol use Reneos?

A: Official patient information states that consuming alcohol is associated with an increased risk of developing low blood sugar (hypoglycemia).


Q: What should be done with any unused or expired Reneos medication?

A: Unused or expired medicines should be disposed of properly according to local guidelines for pharmaceutical waste. This typically involves returning them to a pharmacy or an authorized community drug take-back program. Disposal instructions also exist for safely mixing medicine with an undesirable substance for placement in household trash if take-back options are unavailable.


Q: How should Reneos be stored at home?

A: Official labeling mandates that Reneos should be stored in its original, tightly closed container at controlled room temperature, typically 20 C to 25 C. It should be kept away from excessive heat, moisture, and direct light to maintain its quality.


Q: What is the typical timeframe required to complete treatment with Reneos?

A: Reneos is indicated for the long-term management of Type 2 diabetes. The duration of therapy depends on the patient's response and the continued need for blood sugar control as determined by a healthcare professional.


Q: Are there any specific lifestyle changes that are recommended while using Reneos?

A: Official documentation states that Reneos is an adjunct to, and not a replacement for, dietary changes and physical activity. Following an appropriate meal plan and maintaining regular exercise are identified as important non-pharmacological components in the management of Type 2 diabetes.


Q: Is there a generic version of Reneos currently available?

A: The active ingredient in Reneos is Repaglinide. The FDA maintains public records indicating that approved generic versions of Repaglinide are available.


Q: Is Reneos a new medication, or has it been available for a long time?

A: The active ingredient in Reneos, Repaglinide, has been available for use for a long period of time. It was first approved by the FDA in 1997.


Q: How does Reneos compare to a placebo in clinical trials?

A: Evidence from clinical trials indicates that Reneos resulted in improved blood sugar control, including lower levels of average blood sugar (HbA1c), when compared to the placebo group.


Q: Do genetic factors affect how Reneos works for different people?

A: Yes, evidence from research studies suggests that individual responses to the active substance, Repaglinide, can be affected by genetic factors. These include variations in genes responsible for how the body breaks down the drug (metabolism) or those linked to the underlying condition being treated.

How should Reneos be stored and disposed of?

Storage and Disposal of Reneos (Repaglinide)

The official labeling for Reneos tablets mandates specific storage and disposal requirements to preserve product quality and safety.


Storage Conditions

Reneos must be stored at Controlled Room Temperature, defined as 20^circC to 25^circC (68^circF to 77^circF). The medication must be kept in its original container, and the container must be tightly closed to protect the tablets from moisture. Keep this and all medicines out of the reach of children.


Disposal

Unused or expired Reneos must be disposed of according to local regulatory requirements for pharmaceutical waste. Do not dispose of the medication by flushing it down a toilet or pouring it into a drain. It should be returned to a pharmacy or authorized collection site, preventing disposal in household waste.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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