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Combination Therapy in Amyotrophic Lateral Sclerosis (ALS)

Phase IIA Trial: Tretinoin and Pioglitazone HCL Combination Therapy in Amyotrophic Lateral Sclerosis

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00919555
Acronym
PNA
Enrollment
28
Registered
2009-06-12
Start date
2008-06-30
Completion date
2012-03-31
Last updated
2012-11-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Amyotrophic Lateral Sclerosis

Keywords

ALS Treatment, Tretinoin, Pioglitazone HCL, Actos, Tau levels, ALS

Brief summary

The purpose of the study is to determine the safety and the efficacy of Tretinoin and Pioglitazone HCL in patients with ALS who are currently on Riluzole.

Detailed description

Physicians at Phoenix Neurological Associates (PNA) are looking for individuals diagnosed with ALS to participate in a double-blind, placebo controlled study of Tretinoin and Pioglitazone HCL, used in combination with Riluzole, for treating ALS. This investigator initiated trial conducted by Dr. Todd Levine and Dr. David Saperstein will help determine whether Tretinoin and Pioglitazone HCL, in combination, can slow the progression of ALS. At present, there is little to no effective therapy for ALS, nor is there a known cause. Therefore there is a tremendous unmet need for more effective therapy for this disease and that is why the physicians at PNA have been very interested in the role of developing a more active anti-excitotoxic cocktail for patients with ALS. Since recent data have suggested that inflammatory mechanisms may interact with and promote neurodegeneration (where cells in the spinal cord and brain are lost), there have been a number of anti-inflammatory treatment strategies that have been evaluated in animal models. Some studies have shown that mice that were given Pioglitazone HCL demonstrated improved muscle strength and body weight, exhibited a delayed disease onset as well as had a longer survival rate compared to non treated mice. In addition to these studies, retinoic acids have been studied extensively in various models of the injured nervous system. These studies have shown that retinoic acids, such as Tretinoin may be neuroprotective and support axonal growth, which could in turn slow disease progression. The purpose of this study is to determine if such a drug cocktail could offer the best chance of attaining a significant reduction in disease progression by utilizing currently available FDA-approved agents

Interventions

DRUGPioglitazone and Tretinoin

Tretinoin: 1 pill twice a day (10 mg/bid) Pioglitazone HCL: 1 pill once a day (30 mg/qd)

DRUGTretinoin and Pioglitazone HCL

Tretinoin 10 mg 1 pill po twice a day Pioglitazone HCL 30 mg 1 pill po once a day

DRUGPlacebo

Placebo

Sponsors

Phoenix Neurological Associates, LTD
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* El Escorial Classification of laboratory supported probable, probable, or definite ALS * Age 18 - 85 years * Male or female * FVC greater than or equal to 70% predicted

Exclusion criteria

* Patients with FVC below 1.5 L or below 70% predicted * History of liver disease * Severe renal failure (CrCl\<30) * History of coronary artery disease requiring placement of stents, bypass surgery or previous myocardial infarction * EKG at baseline with evidence for previous myocardial infarction, cardiomyopathy, or arrhythmia * History of intolerance to Riluzole, Tretinoin, or Pioglitazone HCL * History of diabetes * Any other comorbid condition which would make completion of trial unlikely

Design outcomes

Primary

MeasureTime frame
To evaluate the safety and efficacy of Tretinoin and Pioglitazone HCL in patients with ALS3 years

Secondary

MeasureTime frame
To determine if cerebrospinal fluid tau levels decline over the course of treatment and if the level of tau decline correlates with response in treatment measured by ALSFRS3 years

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026