Trental

Intermittent Claudication, Alcoholic Liver Diseases, Peripheral Arterial Disease + 1 more

Treatment

4 FDA approvals

20 Active Studies for Trental

What is Trental

Pentoxifylline

The Generic name of this drug

Treatment Summary

Pentoxifylline (PTX) is a medication used to improve the flow of blood and also help reduce inflammation. It was originally used to treat intermittent claudication, a type of leg pain in patients with peripheral arterial disease. PTX has been studied for its potential use in other medical conditions, such as osteoradionecrosis, diabetic kidney disease, and any condition associated with fibrosis. Recently, it has been suggested as a possible treatment for COVID-19-related lung complications due to its ability to regulate the production of inflammatory cytokines. Pentoxifylline has been available in Europe since 1972

Trental

is the brand name

image of different drug pills on a surface

Trental Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Trental

Pentoxifylline

1984

37

Approved as Treatment by the FDA

Pentoxifylline, also known as Trental, is approved by the FDA for 4 uses including Intermittent Claudication and Peripheral Arterial Disease (PAD) .

Intermittent Claudication

Helps manage Intermittent Claudication

Peripheral Arterial Disease (PAD)

Helps manage Peripheral Arterial Disease (PAD)

Intermittent Claudication

Helps manage Intermittent Claudication

Peripheral Arterial Disease

Helps manage Peripheral Arterial Disease (PAD)

Effectiveness

How Trental Affects Patients

Pentoxifylline is a drug similar to theophylline and caffeine. It is commonly used to treat peripheral arterial disease (PAD), and can have anti-oxidant, anti-inflammatory, and blood-flow regulating effects. It is important to note that people with conditions such as angina, arrhythmia, or hypotension may find pentoxifylline worsens their symptoms. Patients taking warfarin should also be monitored more frequently. Additionally, those with risk factors for bleeding, such as retinal bleeding, peptic ulcers, or recent surgery, should have their blood checked regularly for

How Trental works in the body

Pentoxifylline works by increasing the flexibility of red blood cells, reducing fibrinogen levels in the plasma, and stopping white blood cells from sticking to one another. It also has antioxidant and anti-inflammatory properties. It is believed that pentoxifylline increases the response of an adenosine receptor to adenosine, leading to increased levels of a molecule called cAMP. This cAMP stops the production of pro-inflammatory molecules, increases the production of anti-inflammatory molecules, and reduces the production of molecules that make blood more viscous. Pentoxifylline metabolites have also been shown to reduce superoxide

When to interrupt dosage

The prescribed dosage of Trental is contingent upon the identified condition, including Venous Leg Ulcer (VLU), Alcoholic Liver Diseases and Peripheral Arterial Disease. The measure of dosage fluctuates, in line with the administration technique (e.g. Tablet, film coated, extended release or Gel - Topical) noted in the following table.

Condition

Dosage

Administration

Peripheral Arterial Disease

400.0 mg, , 1.0 mg/mg, 0.02 mg/mg, 0.005 mg/mg

, Tablet, extended release, Tablet, extended release - Oral, Oral, Tablet, film coated, extended release, Tablet, film coated, extended release - Oral, Kit - Topical, Topical, Kit, Tablet, film coated - Oral, Tablet, film coated, Solution - Topical, Solution, Gel, Gel - Topical

Venous Leg Ulcer (VLU)

400.0 mg, , 1.0 mg/mg, 0.02 mg/mg, 0.005 mg/mg

, Tablet, extended release, Tablet, extended release - Oral, Oral, Tablet, film coated, extended release, Tablet, film coated, extended release - Oral, Kit - Topical, Topical, Kit, Tablet, film coated - Oral, Tablet, film coated, Solution - Topical, Solution, Gel, Gel - Topical

Intermittent Claudication

400.0 mg, , 1.0 mg/mg, 0.02 mg/mg, 0.005 mg/mg

, Tablet, extended release, Tablet, extended release - Oral, Oral, Tablet, film coated, extended release, Tablet, film coated, extended release - Oral, Kit - Topical, Topical, Kit, Tablet, film coated - Oral, Tablet, film coated, Solution - Topical, Solution, Gel, Gel - Topical

Alcoholic Liver Diseases

400.0 mg, , 1.0 mg/mg, 0.02 mg/mg, 0.005 mg/mg

, Tablet, extended release, Tablet, extended release - Oral, Oral, Tablet, film coated, extended release, Tablet, film coated, extended release - Oral, Kit - Topical, Topical, Kit, Tablet, film coated - Oral, Tablet, film coated, Solution - Topical, Solution, Gel, Gel - Topical

Warnings

Trental has five counter-indications and should not be administered in combination with the situations outlined in the table below.

Trental Contraindications

Condition

Risk Level

Notes

Food Intolerance

Do Not Combine

methylxanthine

Do Not Combine

Cerebral Hemorrhage

Do Not Combine

Retinal Hemorrhage

Do Not Combine

Severe Hypersensitivity Reactions

Do Not Combine

Pentoxifylline may interact with Pulse Frequency

There are 20 known major drug interactions with Trental.

Common Trental Drug Interactions

Drug Name

Risk Level

Description

Abrocitinib

Major

The risk or severity of bleeding and thrombocytopenia can be increased when Pentoxifylline is combined with Abrocitinib.

Riociguat

Major

Pentoxifylline may increase the hypotensive activities of Riociguat.

Abacavir

Minor

Pentoxifylline may decrease the excretion rate of Abacavir which could result in a higher serum level.

Acebutolol

Minor

Pentoxifylline may increase the hypotensive activities of Acebutolol.

Aclidinium

Minor

Pentoxifylline may decrease the excretion rate of Aclidinium which could result in a higher serum level.

Trental Toxicity & Overdose Risk

Taking too much pentoxifylline can cause agitation, fever, redness of the skin, low blood pressure, seizures, drowsiness, and unconsciousness. Treatment should focus on keeping breathing and blood pressure normal, and controlling convulsions. Activated charcoal may be helpful in absorbing the excess drug in the body. People have recovered from overdoses even when taking up to 80 mg/kg.

Trental Novel Uses: Which Conditions Have a Clinical Trial Featuring Trental?

68 active clinical trials are underway to assess the potential of Trental in alleviating Venous Leg Ulcer (VLU), Intermittent Claudication and Alcoholic Liver Diseases.

Condition

Clinical Trials

Trial Phases

Intermittent Claudication

9 Actively Recruiting

Phase 1, Phase 2, Not Applicable, Phase 3

Alcoholic Liver Diseases

2 Actively Recruiting

Not Applicable, Phase 2

Peripheral Arterial Disease

37 Actively Recruiting

Not Applicable, Phase 3, Phase 1, Early Phase 1, Phase 2, Phase 4

Venous Leg Ulcer (VLU)

23 Actively Recruiting

Phase 1, Phase 2, Not Applicable, Phase 3, Phase 4

Trental Reviews: What are patients saying about Trental?

5

Patient Review

5/20/2010

Trental for Peripheral Vascular Disease

For those of you looking for info on Trental, I checked into this for my mom. The drug is backordered, but I found nothing which stated from Sanofi-Aventis or the FDA that the drug was discontinued.

5

Patient Review

6/16/2010

Trental for Peripheral Vascular Disease

For three years, this drug has provided great relief from my leg cramping. However, over the last few months, pharmacies have been unable to get it from the manufacturer due to backorders. This is terrible because I rely on this medication to feel better. I don't understand what's going on with the manufacturer that they're not supplying this drug to pharmacies.

5

Patient Review

7/5/2012

Trental for Peripheral Vascular Disease

I've been taking Trental for years with no noticeable side effects. I was recently told by my pharmacist that it had been discontinued, so they gave me Pentoxifylline instead. However, after a few days of taking the new medication, I started getting headaches so I stopped.

5

Patient Review

7/8/2012

Trental for Peripheral Vascular Disease

I've been taking this medication for a while now and I've noticed my nails have become brittle.

5

Patient Review

7/2/2010

Trental for Peripheral Vascular Disease

I've been taking this medication for over two decades with great results.

5

Patient Review

4/23/2010

Trental for Peripheral Vascular Disease

5

Patient Review

12/10/2012

Trental for Peripheral Vascular Disease

I had awful leg cramps and this treatment completely fixed that issue.

4.7

Patient Review

6/11/2010

Trental for Peripheral Vascular Disease

I've been taking this medication for 15 years now with no adverse effects.

4.7

Patient Review

1/11/2012

Trental for Peripheral Vascular Disease

I've been taking Trental for over a decade now and have never experienced any negative side effects that I'm aware of. Recently though, it hasn't been working as well as it used to. I'm on the highest dose possible, so I don't know if maybe I need to get more exercise or not. All I know is that at night, I often get terrible cramping and pain. And for those of you who are worried about it disappearing from the market, don't worry. It just gets scarce from time to time but it always comes back eventually.

4.3

Patient Review

4/24/2011

Trental for Peripheral Vascular Disease

I sometimes experience severe dizziness with this medication.

4.3

Patient Review

6/21/2010

Trental for Peripheral Vascular Disease

I've been told that Trental and Pentoxifylline are no longer being manufactured. If this is true, it's a real shame because this medication actually works. I tried Plavix once and it gave me terrible pains in my legs.

4

Patient Review

7/28/2012

Trental for Peripheral Vascular Disease

Trental has been a godsend for me. I'm an 81 year old male with very poor circulation in both legs; this has caused severe cramping while walking for over 19 years. Trental helps prevent these cramps, even though I can only walk short distances. I haven't experienced any negative side effects that I know of, and simply take 3 pills with food 3 times per day.

3.7

Patient Review

9/14/2015

Trental for Leg Pain when Walking; Absent at Rest

I just started taking Trental 400 sustained release, so I can't speak to its efficacy yet. That said, it's definitely available from Sanofi as of September 2015.

3

Patient Review

5/21/2010

Trental for Peripheral Vascular Disease

I've been taking this medication for 25 years to help with my scleraderma. It's cleared up the ulcers on my fingers and I really think it's a lifesaver.

2.3

Patient Review

8/29/2010

Trental for Peripheral Vascular Disease

I've been feeling really agitated since I started taking this drug. I hope the side effects will go away soon.
image of drug pills surrounding a glass of water symbolizing drug consumption

Patient Q&A Section about trental

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

What is the use of Trental 400?

"Trental 400 is a medicine used to improve circulation. It is used to treat the symptoms of a condition called chronic occlusive arterial disease, which can include lameness and pain."

Answered by AI

What is Trental used for?

"This medication works by improving blood flow in the legs and arms, which helps to decrease the muscle pain that occurs during exercise."

Answered by AI

Is Trental a blood thinner?

"Eliquis reduces the risk of stroke and systemic embolism by reducing blood clotting in patients with nonvalvular atrial fibrillation. Trental and Eliquis are in different drug classes; Trental is a hemorrhagic agent and Eliquis is an anticoagulant (blood thinner)."

Answered by AI

Does Trental increase blood pressure?

"Trental (pentoxifylline) could increase the effect of antihypertensive agents. Patients taking these agents should have their blood pressure monitored and their dose of antihypertensive agents might need to be reduced."

Answered by AI

Clinical Trials for Trental

Image of Hôtel-Dieu de Lévis, CISSS de Chaudière-Appalaches in Lévis, Canada.

Home-Based Exercise Therapy for Peripheral Artery Disease

18+
All Sexes
Lévis, Canada

Peripheral arterial disease (PAD) is a chronic atherosclerotic condition associated with impaired mobility, reduced quality of life, cardiovascular events, and risk of lower limb amputation. Although supervised exercise therapy (SET) is recommended for symptomatic PAD, access and adherence remain limited, particularly among patients with moderate-to-severe disease or chronic limb-threatening ischemia (CLTI). The PILOT-PAD-CYCLE study is a prospective, single-center, pilot randomized controlled trial designed to evaluate the feasibility, acceptability, and preliminary efficacy of a 12-week home-based exercise therapy (HET) program using a portable pedal exerciser in adults with moderate-to-severe PAD, including CLTI, with or without foot wounds. Twelve participants will be randomized 1:1 to either HET plus standard care or standard care alone. The intervention includes individualized exercise prescription, remote supervision by a kinesiologist, cardiovascular education, and follow-up over 12 weeks. Outcomes include feasibility and acceptability metrics, 6-minute walk test distance, vascular perfusion indices, quality of life, and cardiovascular events up to 6 months. This pilot trial aims to generate feasibility data and preliminary efficacy estimates to support the development of a future multicenter randomized controlled trial.

Recruiting
Has No Placebo

Hôtel-Dieu de Lévis, CISSS de Chaudière-Appalaches

Image of Methodist Hospital in Indianapolis, United States.

Heat Therapy for Peripheral Artery Disease

18+
All Sexes
Indianapolis, IN

Lower-extremity peripheral artery disease is associated with impaired walking ability, reduced lower-extremity function, and decreased quality of life. This randomized, sham-controlled clinical trial will evaluate the effects of 12 weeks of home-based lower-extremity heat therapy on walking function and mobility in adults with peripheral artery disease. A total of 40 participants will be randomized to active lower-extremity heat therapy or sham therapy. Participants assigned to active therapy will complete daily 90-minute home treatment sessions using heated lower-extremity garments. Participants assigned to sham therapy will complete the same treatment schedule using a lower-temperature sham condition. The primary outcome is the change in six-minute walk distance from baseline to 12 weeks. Secondary outcomes include changes in leg strength and fatigability, Short Physical Performance Battery score, blood pressure, and patient-reported quality of life.

Waitlist Available
Device

Methodist Hospital

Raghu Motaganahalli, MD

Aquilo Sports, LLC

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Image of University of California, Los Angeles in Los Angeles, United States.

LUT017 Gel for Venous Ulcers

18+
All Sexes
Los Angeles, CA

This research study is investigating a new topical medication called LUT017, which is being developed to help heal chronic skin wounds, particularly those known as venous leg ulcers (VLUs). VLUs are open sores that commonly occur on the lower legs due to poor blood flow in the veins. These wounds can be painful, slow to heal, and difficult to treat, especially in older adults and people with conditions like diabetes or obesity. LUT017 is a gel that will be applied directly to the surface of these wounds. The goal of the study is to find out if the gel is safe and well tolerated when applied once a week for up to 8 weeks. The researchers will also look for early signs of whether the gel helps the wounds heal more quickly or completely. The gel contains a medicine that has been shown in animal studies to activate natural skin repair processes and promote cell growth, potentially speeding up the healing process. The study will involve between 12 and 18 adult participants who have had a chronic leg wound for at least 4 weeks. All participants will go through a screening process to make sure they are eligible. If they qualify, they will first complete a two-week "run-in" phase where their wound will be treated with standard medical bandages. This phase helps ensure that only participants whose wounds are not healing with normal care are included. If participants remain eligible after this period, they will start the treatment phase. During this phase, they will come to the clinic once a week for 8 weeks to receive the LUT017 gel treatment directly on their wound. Each visit will include a physical exam, vital signs, wound evaluation, photographs of the wound, and blood tests to monitor safety. After the 8-week treatment period, participants will return for two follow-up visits-one at 3 months and one at 6 months after their first treatment. These visits will help the researchers understand how long any benefits of the treatment might last and monitor for any delayed side effects. In total, participants will be involved in the study for about 6.5 months and will have approximately 12 to 14 visits to the clinic. Participation is entirely voluntary, and individuals can withdraw at any time. The research team is committed to ensuring participant safety and privacy throughout the study.

Phase 1
Waitlist Available

University of California, Los Angeles

Steven Farley, M.D.

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Image of PharmaTex Research in Amarillo, United States.

REGN7508 + REGN9933 for Peripheral Artery Disease

18+
All Sexes
Amarillo, TX

This study is researching 2 different experimental drugs called REGN7508 and REGN9933. The study is focused on people who have Peripheral Artery Disease (PAD), which means that the blood vessels in their arms and legs have become too narrow. People with PAD have a higher risk of getting blood clots after procedures like Lower Extremity Revascularization (LER), a procedure to improve blood flow in the legs and feet. The aim of this study is to see how well REGN7508 and REGN9933 prevent life-threatening blood clots in participants with PAD who have recently had LER. The effects of REGN7508 and REGN9933, individually, will also be compared to rivaroxaban and a placebo. The study is looking at several other research questions, including: * What side effects might happen from taking the study drugs and how do they compare to the side effects of rivaroxaban * How much study drug is in the blood at different times * Whether the body makes antibodies against the study drugs (which could make the drugs less effective or could lead to side effects) * If the study drugs affect the ability of the blood to clot normally

Phase 3
Recruiting

PharmaTex Research (+29 Sites)

Clinical Trial Management

Regeneron Pharmaceuticals

Image of University of Nebraska at Omaha Health Science Collaborative in Omaha, United States.

Pulse Arrival Time for Peripheral Artery Disease

18+
All Sexes
Omaha, NE

1\) The purpose of this study is to assess segmental pulse arrival time (PAT) as an alternative biomarker to detect lower-extremity peripheral artery disease (PAD), and to investigate the impacts of local skin heating and foot elevation. The secondary purpose will be to investigate the impacts of age on segmental PAT. The subject population will include any adults 19 years of age or older with or without PAD. Exclusion criteria include having an aortic aneurysm with or without previous intervention, previous revascularization surgeries of the arteries in the legs/aorta, walking impairments independent of PAD, gangrene or ulcers of the toes/feet, and currently pregnant or breastfeeding. 3) All aims of the present study will be completed with a single laboratory visit. Descriptive measurements will include height, weight, age, sex, body fat percentage, and self-reported medication and health history. Subjects will lie in the supine position for 20-min. After rest, either the ankle-brachial index (ABI) or PAT will be assessed. After 10-min of further rest, the other measurement will be performed. ABIs will be assessed according to current guidelines: blood pressures will be assessed in the dorsal pedis and tibialis posterior arteries of both legs and the brachial arteries of both arms using a blood pressure cuff and Doppler ultrasound. PAT will be simultaneously assessed in both arms and legs using an investigational device with a 3-lead electrocardiogram sensor and four photoplethysmography (PPG) sensors. A PPG sensor will be applied to a finger on each hand and both big toes. Signals will be collected for 15-min with finger and toe sensor temperatures at 30 C. Toe sensor temperature will then be elevated to 45 C for 15-min. Finally, toe sensor temperature will remain at 45 C, and the feet will be elevated 8-in with a soft cushion for 15-min. Blood pressure in the arm and legs will be assessed at the end of each stage. Thermal images of the fingers and toes will be assessed before using the investigational device and after each stage. Subjects will then participate in a 6-min walking test (6MWT) to objectively establish walking capacity. The 6MWT will be performed in accordance with current guidelines. Segmental PATs will be compared with ABI and 6-min walking time to determine if segmental PATs can predict lower-extremity PAD (ABI) and the associated walking impairment (6MWT). This study is expected to last \~2.5hrs. 4) There will be no follow-up.

Recruiting
Has No Placebo

University of Nebraska at Omaha Health Science Collaborative

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