180 Participants Needed

KL1333 for Mitochondrial Disease

(FALCON Trial)

Recruiting at 24 trial locations
CM
Overseen ByCommunication Manager
Prior Safety DataThis treatment has passed at least one previous human trial

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial tests a new treatment called KL1333 for individuals with primary mitochondrial disease, which often leads to chronic fatigue and muscle weakness. The researchers aim to determine if KL1333 can reduce fatigue and improve daily activities while assessing its safety. Participants will receive either KL1333 or a placebo (a pill with no active medicine) for comparison. This trial suits those with confirmed mitochondrial disease who experience ongoing fatigue and muscle weakness and can manage daily tasks like climbing stairs. As a Phase 2 trial, it focuses on evaluating the treatment's effectiveness in an initial, smaller group of participants.

Will I have to stop taking my current medications?

The trial requires participants to stop taking idebenone during the study. If you are on mitochondrial disease-focused vitamins or supplements like CoQ10, niacin, or L-arginine, you must have been on a stable dose for 3 months before the trial and continue that dose throughout the study.

Is there any evidence suggesting that KL1333 is likely to be safe for humans?

Research has shown that KL1333 is generally safe for people. In earlier studies, KL1333 was safe and well-tolerated. Some participants experienced stomach-related side effects, which were linked to the dosage. Evidence also suggests that KL1333 might improve muscle strength in individuals with primary mitochondrial disease (PMD). While this information is encouraging, the treatment is still under testing to confirm these results.12345

Why do researchers think this study treatment might be promising?

Unlike other treatments for mitochondrial disease, KL1333 is unique because it targets the underlying energy production issues within cells. Most current therapies focus on managing symptoms rather than addressing the root cause. KL1333 is designed to enhance the function of mitochondria, the cell's powerhouses, potentially leading to improved energy levels and overall function. This approach is exciting for researchers because it offers the possibility of a more effective and direct treatment, potentially transforming how mitochondrial diseases are managed.

What evidence suggests that KL1333 might be an effective treatment for mitochondrial disease?

Studies have shown that KL1333, which participants in this trial may receive, can help reduce tiredness and improve strength and stamina in people with primary mitochondrial disease. Previous patients reported feeling less fatigued and experiencing better muscle function after taking KL1333. This investigational treatment addresses the energy production problems caused by mitochondrial disease, which might explain its potential benefits. Early research is promising and suggests that KL1333 could significantly improve daily life for those affected by this condition.14678

Who Is on the Research Team?

GG

Grainne Gorman, MD, PhD

Principal Investigator

Wellcome Centre for Mitochondrial Research, Newcastle University

AK

Amel Karaa, MD

Principal Investigator

Massachusetts General Hospital

Are You a Good Fit for This Trial?

Adults over 18 with primary mitochondrial disease (PMD) characterized by muscle weakness or limited exercise tolerance, chronic fatigue, and a confirmed genetic diagnosis. Participants must be clinically stable, able to attend appointments, willing to maintain diet and therapy regimens, not pregnant, and agree to contraception requirements.

Inclusion Criteria

Willingness and ability to complete electronic PROs
I have muscle weakness or struggle with physical activity due to mitochondrial myopathy.
I have been feeling extremely tired for more than 3 months.
See 8 more

Exclusion Criteria

I have a mitochondrial disease mainly affecting my nervous system.
I have a genetic mutation linked to mitochondrial disease.
I haven't taken any experimental drugs within the last 30 days.
See 13 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

8-12 weeks

Treatment

Participants receive either KL1333 or placebo twice daily for 48 weeks

48 weeks

Safety follow-up

Participants are monitored for safety and effectiveness after treatment

5 weeks

What Are the Treatments Tested in This Trial?

Interventions

  • KL1333
  • Placebo
Trial Overview The FALCON study is testing the effectiveness of KL1333 on fatigue symptoms and daily life impact in PMD patients after 48 weeks compared to a placebo. It also measures lower extremity strength/endurance while assessing safety and tolerability of KL1333.
How Is the Trial Designed?
2Treatment groups
Experimental Treatment
Placebo Group
Group I: KL1333Experimental Treatment1 Intervention
Group II: Matching PlaceboPlacebo Group1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

Abliva AB

Lead Sponsor

Trials
3
Recruited
270+

Published Research Related to This Trial

Primary mitochondrial diseases are common inherited metabolic disorders affecting about 1 in 4,300 live births, but there are currently no licensed disease-modifying therapies, and most management is supportive.
Recent advances in therapy development have led to small molecules moving from preclinical studies to early-phase human trials, indicating progress in finding effective treatments for these complex disorders.
Moving towards clinical trials for mitochondrial diseases.Pitceathly, RDS., Keshavan, N., Rahman, J., et al.[2021]
Mitochondrial disease research has made significant progress, but effective treatments are still lacking due to reliance on anecdotal evidence rather than rigorous clinical trials.
The author emphasizes the importance of learning from early randomized controlled trials in mitochondrial diseases to improve future research and utilize new resources for patient-oriented studies.
Why are there no proven therapies for genetic mitochondrial diseases?Stacpoole, PW.[2021]

Citations

a phase 1a/1b randomized study of KL1333 in adults with ...Importantly, the data from the trial support efficacy of KL1333 based on improvements in fatigue and functional strength and endurance.
Efficacy of KL1333 in Adult Patients With Primary ...This objective involves evaluating the efficacy of KL1333 versus placebo on fatigue symptoms and impacts on daily living as well as on ...
Abliva Reports Positive Interim Results for FALCON Study ...The FALCON study is a Phase 2, global, randomized, placebo-controlled trial. It evaluates KL1333 in adult patients with primary mitochondrial disease.
Early clinical trial shows promising results for adults with ...Novel molecule, KL1333 has shown promising results with reduced fatigue and improved functional strength for those with primary mitochondrial disease.
New drug in development for primary mitochondrial ...An early phase 1 clinical trial has shown a new drug for primary mitochondrial myopathies is safe and potentially improves muscle symptoms.
Efficacy of KL1333 in Adult Patients With Primary ...The FALCON study is investigating whether the study medicine, KL1333, improves fatigue levels and physical abilities of people living with ...
KL1333 for Mitochondrial Disease (FALCON Trial)Is KL1333 safe for humans? The research does not provide specific safety data for KL1333, but a similar compound, KH176, was well tolerated and appeared safe ...
Research & Development – AblivaFALCON is a Phase 2, global, randomized, placebo-controlled, potentially registrational study evaluating the safety and efficacy of KL1333 in adult patients ...
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