Ryanodex

Malignant Hyperthermia, Muscle Spasticity, Malignant Hyperthermia + 4 more

Treatment

20 Active Studies for Ryanodex

What is Ryanodex

Dantrolene

The Generic name of this drug

Treatment Summary

Dantrolene is a medicine that does not work the same way as other drugs in its class, such as phenytoin. It is made from a chemical called a hydantoin derivative.

Dantrolene Sodium

is the brand name

Ryanodex Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Dantrolene Sodium

Dantrolene

2005

36

Effectiveness

How Ryanodex Affects Patients

Dantrolene is a medicine that helps relax the muscles. It is the only treatment for a dangerous condition called malignant hyperthermia. It works by interfering with the release of calcium from the muscles, which helps restore normal levels of calcium in the cells. In malignant hyperthermia, it is believed that certain drugs (like general anesthetics and muscle relaxants) cause an increase in calcium levels in the muscle cells, which can lead to a dangerous situation. Dantrolene helps bring the calcium levels back to normal.

How Ryanodex works in the body

Dantrolene works on muscle cells to prevent them from contracting. It does this by binding to a receptor in the muscle, which stops calcium from being released. Calcium is needed for muscles to contract, so without it, the muscle cannot move.

When to interrupt dosage

The optimal dose of Ryanodex is contingent upon the diagnosed condition, including Stroke, Spasticity and Spinal Cord Injury. The amount of dosage is reliant on the mode of delivery (e.g. Capsule - Oral or Injection, Solution - Intravenous) featured in the table underneath.

Condition

Dosage

Administration

Malignant Hyperthermia

, 25.0 mg, 50.0 mg, 100.0 mg, 2.0 mg/mL, 250.0 mg/mL, 20.0 mg

, Oral, Capsule, Capsule - Oral, Injection, suspension, Injection, suspension - Intravenous, Intravenous, Injection, powder, lyophilized, for solution, Injection, powder, lyophilized, for solution - Intravenous, Powder, for solution, Powder, for solution - Intravenous, Injection, Injection - Intravenous, Injection, powder, for solution, Injection, powder, for solution - Intravenous, Injection, solution, Injection, solution - Intravenous

Malignant Hyperthermia

, 25.0 mg, 50.0 mg, 100.0 mg, 2.0 mg/mL, 250.0 mg/mL, 20.0 mg

, Oral, Capsule, Capsule - Oral, Injection, suspension, Injection, suspension - Intravenous, Intravenous, Injection, powder, lyophilized, for solution, Injection, powder, lyophilized, for solution - Intravenous, Powder, for solution, Powder, for solution - Intravenous, Injection, Injection - Intravenous, Injection, powder, for solution, Injection, powder, for solution - Intravenous, Injection, solution, Injection, solution - Intravenous

Multiple Sclerosis

, 25.0 mg, 50.0 mg, 100.0 mg, 2.0 mg/mL, 250.0 mg/mL, 20.0 mg

, Oral, Capsule, Capsule - Oral, Injection, suspension, Injection, suspension - Intravenous, Intravenous, Injection, powder, lyophilized, for solution, Injection, powder, lyophilized, for solution - Intravenous, Powder, for solution, Powder, for solution - Intravenous, Injection, Injection - Intravenous, Injection, powder, for solution, Injection, powder, for solution - Intravenous, Injection, solution, Injection, solution - Intravenous

Stroke

, 25.0 mg, 50.0 mg, 100.0 mg, 2.0 mg/mL, 250.0 mg/mL, 20.0 mg

, Oral, Capsule, Capsule - Oral, Injection, suspension, Injection, suspension - Intravenous, Intravenous, Injection, powder, lyophilized, for solution, Injection, powder, lyophilized, for solution - Intravenous, Powder, for solution, Powder, for solution - Intravenous, Injection, Injection - Intravenous, Injection, powder, for solution, Injection, powder, for solution - Intravenous, Injection, solution, Injection, solution - Intravenous

Spinal Cord Injury

, 25.0 mg, 50.0 mg, 100.0 mg, 2.0 mg/mL, 250.0 mg/mL, 20.0 mg

, Oral, Capsule, Capsule - Oral, Injection, suspension, Injection, suspension - Intravenous, Intravenous, Injection, powder, lyophilized, for solution, Injection, powder, lyophilized, for solution - Intravenous, Powder, for solution, Powder, for solution - Intravenous, Injection, Injection - Intravenous, Injection, powder, for solution, Injection, powder, for solution - Intravenous, Injection, solution, Injection, solution - Intravenous

Cerebral Palsy

, 25.0 mg, 50.0 mg, 100.0 mg, 2.0 mg/mL, 250.0 mg/mL, 20.0 mg

, Oral, Capsule, Capsule - Oral, Injection, suspension, Injection, suspension - Intravenous, Intravenous, Injection, powder, lyophilized, for solution, Injection, powder, lyophilized, for solution - Intravenous, Powder, for solution, Powder, for solution - Intravenous, Injection, Injection - Intravenous, Injection, powder, for solution, Injection, powder, for solution - Intravenous, Injection, solution, Injection, solution - Intravenous

Muscle Spasticity

, 25.0 mg, 50.0 mg, 100.0 mg, 2.0 mg/mL, 250.0 mg/mL, 20.0 mg

, Oral, Capsule, Capsule - Oral, Injection, suspension, Injection, suspension - Intravenous, Intravenous, Injection, powder, lyophilized, for solution, Injection, powder, lyophilized, for solution - Intravenous, Powder, for solution, Powder, for solution - Intravenous, Injection, Injection - Intravenous, Injection, powder, for solution, Injection, powder, for solution - Intravenous, Injection, solution, Injection, solution - Intravenous

Warnings

Ryanodex has six contraindications, so it should not be employed in combination with the conditions presented in the below table.

Ryanodex Contraindications

Condition

Risk Level

Notes

Muscle Spasticity

Do Not Combine

Muscle Spasticity

Do Not Combine

Cirrhosis

Do Not Combine

Hepatitis

Do Not Combine

Locomotion

Do Not Combine

Liver Diseases

Do Not Combine

There are 20 known major drug interactions with Ryanodex.

Common Ryanodex Drug Interactions

Drug Name

Risk Level

Description

Agmatine

Major

The risk or severity of hyperkalemia can be increased when Dantrolene is combined with Agmatine.

Amiodarone

Major

The risk or severity of hyperkalemia can be increased when Dantrolene is combined with Amiodarone.

Amlodipine

Major

The risk or severity of hyperkalemia can be increased when Dantrolene is combined with Amlodipine.

Aranidipine

Major

The risk or severity of hyperkalemia can be increased when Dantrolene is combined with Aranidipine.

Azelastine

Major

Dantrolene may increase the central nervous system depressant (CNS depressant) activities of Azelastine.

Ryanodex Toxicity & Overdose Risk

The toxic dose of this drug in rats is 7400mg/kg. Signs of an overdose include muscle weakness, confusion, vomiting, diarrhea, and the presence of crystals in the urine.

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

258 active clinical trials are examining the possible benefits of Ryanodex in treating Multiple Sclerosis, Spinal Cord Injury and Spasticity-related conditions.

Condition

Clinical Trials

Trial Phases

Muscle Spasticity

0 Actively Recruiting

Multiple Sclerosis

119 Actively Recruiting

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

Malignant Hyperthermia

0 Actively Recruiting

Malignant Hyperthermia

0 Actively Recruiting

Cerebral Palsy

0 Actively Recruiting

Stroke

6 Actively Recruiting

Not Applicable, Phase 1

Spinal Cord Injury

68 Actively Recruiting

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

Patient Q&A Section about ryanodex

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

How do you administer RYANODEX?

"The recommended dosage of RYANODEX® for adults and children is 1 mg/kg, given as an intravenous push. If the person continues to have physiologic and metabolic abnormalities associated with MH, additional intravenous doses up to a maximum of 10 mg/kg may be given."

Answered by AI

Is RYANODEX the same as dantrolene?

"RYANODEX® uses a unique technology that helps it to address deficiencies that other dantrolene sodium products have."

Answered by AI

What is RYANODEX used for?

"The drug RYANODEX® is indicated for the treatment of a condition called malignant hyperthermia. This condition is treated by using appropriate supportive measures in addition to the drug. RYANODEX® is also indicated for the prevention of malignant hyperthermia in patients who are at a high risk for developing the condition."

Answered by AI

What do you mix RYANODEX with?

"What is the process for reconstituting RYANODEX®?

To reconstitute RYANODEX®, add 5 mL of sterile water for injection to the vial. Shake the vial until the RYANODEX® is mixed thoroughly (should take less than 10 seconds)."

Answered by AI

Clinical Trials for Ryanodex

Image of Jacobs School of Medicine and Biomedical Sciences, Neurology, University at Buffalo in Buffalo, United States.

Mindset Training for MS

18 - 65
All Sexes
Buffalo, NY

People with Multiple Sclerosis (MS) often experience cognitive difficulties such as memory problems, concentration issues, and reduced processing speed. These symptoms can have a negative impact on daily functioning and overall quality of life. Previous research on cognitive rehabilitation has shown that regular training focused on memory and concentration can have positive effects on cognitive functioning, including processing speed, memory, and executive functions that support daily activities. Moreover, fMRI studies (brain scans that measure brain activity) have revealed changes in brain activation following cognitive rehabilitation. Recently, the idea has emerged that a more personalized approach could improve treatment outcomes. Specifically, researchers have identified a link between personality traits and cognitive functioning. Since every individual is different, current cognitive rehabilitation programs often fail to take these personal differences into account. In this project, the investigators aim to enhance the effectiveness of cognitive rehabilitation by focusing more closely on individual characteristics through an app-based training program. Participants will complete a 12-week app training prior to a 6-week cognitive rehabilitation program. The first app focuses on mindset training, supported by a coach. Afterwards, all participants will use a second app designed to train processing speed and memory. In addition to cognitive functioning, the investigators will also examine psychological, (neuro)biological, and social changes using questionnaires and fMRI. This research may provide valuable insights into how cognitive functioning and quality of life in people with MS can be improved. This study is funded by the National MS Fund and is a collaboration between several institutions: the Department of Health, Medical and Neuropsychology at Leiden University (The Netherlands), the University at Buffalo (USA), and Reha Rheinfelden (Switzerland).

Recruiting
1 Prior Treatment

Jacobs School of Medicine and Biomedical Sciences, Neurology, University at Buffalo

Hanneke E Hulst, Prof

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Image of Shirley Ryan AbilityLab in Chicago, United States.

Paired Associative Stimulation + Locomotor Training for Spinal Cord Injury

18 - 75
All Sexes
Chicago, IL

Locomotor recovery is one of the most important goals of individuals with spinal cord injury (SCI). Ambulatory deficits severely impact daily functions resulting in lower quality of life for people living with paralysis due to SCI. Although studies have shown that locomotor training improves locomotor function in people with chronic SCI, the benefits remain limited. Our overall hypothesis is that we can engage additional descending motor pathways, such as the reticulospinal tract (RST), to improve locomotor function in humans with chronic incomplete SCI. In this study we propose to test the effects of a novel intervention that uses repeated paired loud auditory and electrical stimulation of muscle afferents combined with locomotor training on walking speed and voluntary muscle strength.

Phase 1 & 2
Waitlist Available

Shirley Ryan AbilityLab

Dalia De Santis, PhD

Image of Truway Health, Inc. www.truwayhealth.com (401 E 34th Street, S11P, New York, NY 10016) in New York, United States.

Electromagnetic Resonance Therapy for Autoimmune Diseases

Any Age
All Sexes
New York, NY

The ImmuneNet study is a Phase I/II clinical trial sponsored by Truway Health, Inc. It will test whether gentle, low-frequency electromagnetic resonance (LF-EMR) can influence how immune cells communicate and synchronize with each other. The goal is to see if this "quantum-synaptic" signaling effect can help stabilize immune activity and reduce the number of autoimmune flare-ups in people living with conditions such as lupus, rheumatoid arthritis, or multiple sclerosis. Participants will receive either an active or a sham (placebo) LF-EMR session three times per week for twelve weeks. Each session is completely non-invasive. Blood samples will be collected to study cytokines (immune-system messenger molecules), gene-expression patterns, and electrical field coherence among immune cells. A machine-learning system will analyze these data to predict inflammation patterns and guide individualized treatment settings. All participant data will be securely recorded and time-stamped to ensure transparency and privacy. The expected outcome of the study is a measurable reduction in autoimmune flare frequency and symptom severity, along with improved understanding of how electromagnetic signaling might safely regulate immune function.

Phase 1 & 2
Waitlist Available

Truway Health, Inc. www.truwayhealth.com (401 E 34th Street, S11P, New York, NY 10016)

Gavin Solomon, President & CEO

Truway Health, Inc.

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Image of University of British Columbia in Kelowna, Canada.

Pain Management Tools for Spinal Cord Injury

18+
All Sexes
Kelowna, Canada

Brief Summary The goal of this clinical trial is to evaluate whether a neuroscience-informed, peer-led self-management program can promote behavior change and reduce pain interference in adults with spinal cord injury (SCI) and chronic pain. The primary aim is to support participants in developing practical, sustainable strategies for managing chronic pain through education, reflection, and consistent application of self-management tools. The program is designed to shift participants from passive recipients of care to active agents in their own pain management process. Chronic pain is highly prevalent among individuals with SCI, and many report that traditional treatments - primarily pharmacological - provide limited relief and are accompanied by significant side effects. There is a growing need for accessible, non-clinical interventions that empower individuals to manage pain based on the latest neuroscience and behavior change principles. Solving SCI Pain intervention is a 7-week, multi-component program grounded in brain-based pain science, neuroplasticity, and behavior change models. The main questions it aims to answer are: * Does the intervention lead to meaningful changes in behavior that support pain self-management? * Does it reduce pain interference in everyday life? Participants will: * Attend three 2-hour group education sessions focused on the neuroscience of pain, the role of fear-avoidance, pain-related beliefs, and body-based self-regulation tools (e.g., movement, Graston, percussion massage, and red light therapy). * Participate in four individual coaching sessions (up to 1 hour each) designed to help them reflect on their experiences, overcome barriers, and integrate the tools into daily life. * Follow individualized coaching recommendations and provided resources to support each participant's unique engagement with cognitive and body-based tools over the 7-week period, including light journaling, goal setting, and guided reflections. * Complete brief check-ins every four days to monitor progress, engagement, and self-reported outcomes. Group and coaching sessions will be recorded and transcribed to support qualitative analysis, allowing researchers to understand how the intervention is experienced and delivered. This will help refine the program for future implementation and scaling. The study prioritizes accessibility, relevance, and peer involvement to address the real-world needs of individuals living with SCI and chronic pain.

Waitlist Available
Has No Placebo

University of British Columbia

Kathleen A Martin Ginis, PhD

Image of Cognixion HQ in Santa Barbara, United States.

Cognixion + Apple Vision Pro for ALS

18+
All Sexes
Santa Barbara, CA

The goal of this study is refine the usability of a BCI capable communication platform. The study will take place in the United States area and will enroll up to 10 participants with late stage ALS, traumatic brain injury (TBI) or spinal cord injury (SCI) that have assistive communication and computer control needs. Each subject will receive an integrated Cognixion + Apple Vision Pro device that includes an augmented reality brain computer interface and associated communication software. The study duration is 3-4 months for each participant. The key questions that will be addressed in this study are: 1. Identify the ability of individuals with target indications to use the integrated Cognixion-Apple Vision Pro system to communicate effectively. 2. Identify the ability of such individuals to learn to use BCI, ET-BCI and other modalities, and to measure their progress over time. 3. Identify the effectiveness of the different forms of input supported by the combined Cognixion-Apple Vision Pro system (BCI, eye-tracking) in allowing such individuals to communicate and have agency. 4. Identify how input such as BCI can be optimized to suit the needs of individuals (e.g., specific frequencies that work best for an individual, SNR with different frequencies, number of targets, length of recording for each frequency) and improve overall usability. 5. Identify the extent to which personalization through a large language model (LLM) affects communication. 6. Identify the appropriate capabilities to enable through an agentic communication interface. Key measures include: ITR - information transfer rate SUS - system usability scale

Waitlist Available
Has No Placebo

Cognixion HQ

Christopher J Ullrich

Cognixion

Image of John D. Dingell VA Medical Center in Detroit, United States.

Ocrelizumab for Multiple Sclerosis

18 - 75
All Sexes
Detroit, MI

This study seeks to assess the effects of long-term ocrelizumab therapy on fatigue (extreme tiredness) as well as cognition (thinking and reasoning skills, such as memory, learning and attention), in veterans with multiple sclerosis. The evaluation will involve cognitive assessment scales (to assess memory, attention and learning abilities), clinical evaluations (to assess nerve function and ability to move), and patient-reported outcome measures (in which you will answer questions about your tiredness, sleep and how you function in daily life). These assessments will occur at baseline (visit 1), 6 month (Visit-2) and 12 months (visit 3) to track changes over time.

Waitlist Available
Has No Placebo

John D. Dingell VA Medical Center

Genentech, Inc.

Image of Medical University of South Carolina in Charleston, United States.

Motor Evoked Potential Conditioning for Spinal Cord Injury

18+
All Sexes
Charleston, SC

The purpose of this research study is to examine the effect of a brain stimulation training to improve the function of brain-spinal cord- muscle connections. Because brain-to-muscle pathways are very important in our movement control, restoring function of these pathways may improve movement problems after injuries. Spinal cord injury causes damage to the brain-to-muscle connection. However, when the injury is "incomplete", there is a possibility that some of the brain-to-muscle pathways are still connected and may be trained to improve movement function. For examining brain-to-muscle pathways, investigators use a transcranial magnetic stimulator. Investigators hope that the results of this research study will help us develop new treatments for people who have movement disabilities. This study will require about 42 visits over the first 14 weeks, and another 6 visits over an additional 3 months. Each visit will take about 1 ½ hours.

Recruiting
Has No Placebo

Medical University of South Carolina

Aiko Thompson, PhD

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