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Huperzine-A to Help With Mental Problems and the Inability to Care for Onself in Patients With Schizophrenia

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified November 2009 by VA Nebraska Western Iowa Health Care System.
Recruitment status was:  Not yet recruiting
American Legion of Iowa Foundation
Information provided by:
VA Nebraska Western Iowa Health Care System Identifier:
First received: November 12, 2009
Last updated: NA
Last verified: November 2009
History: No changes posted
Use Huperzine-A, a herbal supplement normally used for treatment of Alzheimer's disease, to potentially improve cognitive dysfunction (memory problems) and functional capacity (ability to perform common daily tasks such as cooking, bathing, telephone, shopping) in people with schizophrenia.

Condition Intervention Phase
Schizophrenia Dementia Drug: Huperzine A Phase 4

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Huperzine-A for Cognitive Dysfunction and Functional Status in Schizophrenia

Resource links provided by NLM:

Further study details as provided by VA Nebraska Western Iowa Health Care System:

Primary Outcome Measures:
  • MATRICS Consensus Cognitive Battery [ Time Frame: First visit, 4 weeks, 8 weeks ]

Secondary Outcome Measures:
  • University of California Performance Skills Assessment-Brief (UPSA-B) [ Time Frame: First visit, 8 weeks ]

Estimated Enrollment: 15
Study Start Date: December 2009
Estimated Study Completion Date: April 2011
Estimated Primary Completion Date: December 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Huperzine A
200 micrograms (mcg) of HuperzineA taken twice daily.
Drug: Huperzine A
Huperzine A in 200 microgram (mcg) capsules taken twice daily for 8 weeks.
Other Names:
  • HupA
  • Huperzine-A
  • Huperzia serrata

Detailed Description:
HupA, an alkaloid initially identified from the Chinese herbal medicine Huperia serrata, is a potent reversible acetyl cholinesterase (AChE) inhibitor with additional unique properties including NMDA-receptor antagonist properties, neuroprotective and antioxidant effects. In animal studies, HupA was shown to possess greater inhibitory, longer-lasting, and more selective effects on AChE activity than donepezil. In clinical studies HupA improved memory, mood, and activities of daily living in patients with Alzheimer's dementia. Adverse effects have been reported at a very low rate in all the clinical trials, and are mainly cholinergic, such as dizziness, nausea, gastrointestinal symptoms, headaches and depressed heart rate. Thus, HupA is an attractive option which may have beneficial effects not only on cognitive but also functional domains of schizophrenia.

Ages Eligible for Study:   19 Years to 59 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. age 19-59
  2. diagnosis of schizophrenia by MINI
  3. cognition score 1 standard deviation below published norms in controls
  4. clinically stable for 12 weeks i.e. on the same antipsychotic(s) for 8 weeks and stable dose for at least 4 weeks
  5. have no more than moderate severity rating on hallucinations, delusions formal thought disorder (BPRS), negative symptoms (PANSS_N)
  6. minimal EPS (Simpson-Angus <6)
  7. minimal depression (Calgary <10)
  8. stable dose of other psychotropics (2 months)
  9. not pregnant.

Exclusion Criteria:

  1. history of active peptic ulcer disease within 1 year of screening
  2. clinically significant cardiac arrhythmia
  3. resting pulse less than 50
  4. active cancer (skin tumors other than melanoma are not excluded)
  5. history of clinically significant stroke
  6. current evidence or history in the past 2 years of epilepsy, focal brain lesion
  7. start of cholinesterase inhibitors/ cognitive enhancers (galantamine, rivastigmine, donepezil, vitamin E and memantine) within 2 months of screening, 8. use of medications with significant central nervous system anticholinergic activity within 2 months of screening.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01012830

Contact: Daniel A Ramirez, BS 800-451-5796 ext 4036

United States, Nebraska
Veterans Affairs Nebraska Western Iowa Health Care System Not yet recruiting
Omaha, Nebraska, United States, 68105
Contact: Daniel A Ramirez, BS    800-451-5796 ext 4036   
Principal Investigator: Prasad R Padala, MD, MS         
Sponsors and Collaborators
VA Nebraska Western Iowa Health Care System
American Legion of Iowa Foundation
Principal Investigator: Prasad R Padala, MD, MS VA Office of Research and Development
  More Information

Responsible Party: Prasad R. Padala, M.D., VA Nebraska Western Iowa Health Care System Identifier: NCT01012830     History of Changes
Other Study ID Numbers: 636-631
Study First Received: November 12, 2009
Last Updated: November 12, 2009

Keywords provided by VA Nebraska Western Iowa Health Care System:
Cognitive Disorders
Huperzine A

Additional relevant MeSH terms:
Schizophrenia Spectrum and Other Psychotic Disorders
Mental Disorders
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Neurocognitive Disorders
Huperzine A
Cholinesterase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Cholinergic Agents
Neurotransmitter Agents
Physiological Effects of Drugs
Neuroprotective Agents
Protective Agents processed this record on September 21, 2017