Current research strategy

20

new gene targets
out of 20,000

From its inception, HDRF’s goal has been to accelerate the development of new and better treatments for depression. The treatment of depression remains a great challenge. Recent studies have shown that only one third of people with depression recover in response to treatment with a single antidepressant and only another one-third recover after months and months, even with multiple treatment trials (STAR*D, Rush et al 2006.)

While the advent of Prozac (the first SSRI) in 1985 was a breakthrough in its time, there has been little progress in the common treatment of depression in over 40 years. The exact physical causes of depression remain unknown, and there is no medical diagnosis for depression (like a blood test or brain scan).

To develop innovative treatments for depression, we must have a deeper understanding of the complex mood- generating systems within the brain and be able to see and measure biological markers of the illness.

To achieve this, HDRF has developed a strategy of bringing together top neuroscience researchers, from various research institutions, with areas of expertise that complement each other, while providing the significant funds necessary for this group to collaboratively develop and execute urgently needed research projects. HDRF’s approach differs from and supplements the more conventional research pathway in which separate investigators at separate institutions work independently rather than share a common strategy.

HDRF’s current research roadmap begins with a focus on animal models to illuminate the neural circuits underlying depression and ends with the testing of new treatment approaches for depressed patients. To realize this effort, HDRF launched its Depression Task Force (DTF), a select group of world-renowned researchers, in 2012. This is an outstanding collaboration of leading neuroscience experts – each of them scientific pioneers in their own right – who have agreed to work together to develop a unique program of depression research that pools the most advanced techniques in molecular biology, electrophysiology, and genetics. Each researcher is carrying out a piece of the plan in their own labs and converging their ongoing results in our powerful Data Center, located at the University of Michigan.

It is almost unprecedented for such successful investigators, each affiliated with a different university, to come together to work on a common project at a significant level of financial support (7-figure+.)

Recently, the Depression Task Force announced that — out of the 20,000 genes that make up the human body — they have identified 20 new gene targets in the brain that can lead to novel treatments for the illness. Through a series of collaborative research projects, they have found that.

these genes produce proteins whose levels get out of balance in stress-re-lated disorders like depression.

“These top twenty gene targets have been tagged in a wide range of animal models to demonstrate how the change in proteins is unhealthy and linked to depression, and then validated in brain tissue from humans who died with depression.”

Dr. Eric Nestler
Head of the Depression Task Force · Chair of Psychiatry, Mount Sinai

What is clear is that depression is not just a disruption in one brain area, but in many connected areas and circuits. The gene targets are in several categories: targets involving nerve cells, targets involving immune cells in circuit networks, targets involving growth factors and related proteins, and targets related to circuits involved in pain regulation.

Discoveries emerging from the research and the clinical trials will provide answers for where and how we can intervene with potential new treatments for depressive mind/brain disorders.

Crisis in research and treatment

Depression is among the most serious health problems facing our society, causing untold human suffering and enormous economic costs. Despite its prevalence, depression is misunderstood, under-funded and under-researched.

Current treatments for depression remain severely limited. Since the introduction of Prozac nearly 50 years ago, there has been little progress in the treatment of depression, only variations of the existing SSRIs and SNRIs (targeting serotonin and norepinephrine, only two of hundreds of neurotransmitters).

That leaves a great unmet need in healthcare: Over 50% of depressed individuals do not respond to any type of existing medications, or various types of therapy. In fact, they become worse with repeated episodes of depression. Those that do respond to existing medications often experience troublesome side effects.

What is needed is not simply more “me-too” drugs, but new therapeutic approaches that are based on a fundamental understanding of the brain’s complex mood centers. However, advanced brain research is stalled because government funding has been reduced, and many of the large drug makers have abandoned the field of neuroscience research.

Experts point to a crisis in research and a dry pipeline for urgently-needed new treatments.

Private initiatives such as HDRF are doing essential
research to advance the underlying science, and
find new molecular targets that can lead to physical
diagnosis of depression and new and better
treatments.

Help fund HDRF’s
innovative research

Current State of
Depression Research
to Date:

Unknown Causes

The exact physical causes of depression in the brain remain unknown.

No Diagnosis

There is no medical diagnosis for depression (like a blood test or brain scan). Diagnosis is still based on subjective criteria.

50% Don’t Respond

Research shows that only 50% of patients respond to existing medications.

SSRI Variations Only

Since the introduction of Prozac in 1985, there has been little progress in the treatment of depression (except variations of existing SSRI’s and SNRI’s).

SSRI Mechanism Unknown

We do not know how SSRI’s and SNRI’s actually work. The biological mechanism is still unknown.

Private Research Declining

Pharmaceutical research is
stalled – Many of the major drug makers have cancelled their basic neuroscience research.

Prevention Gap

There is limited knowledge for prevention of depression.

Underfunded

Although depression is the second most prevalent illness in the U.S. today, depression research ranks 89th out of 327 research areas in the amount of federal funding it receives.

The Clinical Trial Initiative

Hope for Depression Research Foundation is entering an exciting new chapter. After a decade of research on essential brain biology, the Depression Task Force has many new ideas for potential antidepressants to test in actual patients.

In science parlance, this is called “translation.” We will take our discoveries from the lab and start a series of pilotclinical trials to confirm what can be translated into new therapeutics for patients.

As always, our goal is to align new treatments for depression with a mechanistic understanding of their action.

CLINICAL
TRIAL-DUG DISCOVERY PROGRAM

The Depression Task Force mission is to align treatments for depression with a mechanistic understanding of their action.  We need bonafide biological tests and treatment targets that show what happens inside a person’s brain during treatment.  Currently, the best, state-of-the art diagnostics are just to talk to somebody, which is frustrating and rudimentary. We need to find the bridge between mental events and neurobiological systems.
The DTF has identified biological systems of resilience to depression that we are now testing on humans in pilot clinical trials.  Our immediate approach is to get better at personalizing treatment within the scope of currently available medications. This approach allows for improved precision without the delay of novel drug development. 

Adaptive Plasticity and Psilocybin

Psilocybin has been shown to enhance resilience by promoting neurogenesis and synaptic plasticity.
Its neuroplastic and therapeutic effects are commonly attributed to serotonin 2A (5-HT2A) receptor activation. However, emerging evidence reveals a more nuanced pharmacological profile involving many other receptors and targets.
HDRF will conduct a clinical trial that will examine the effects of psilocybin administration on synaptic density in patients with treatment resistant depression. The trial will give mechanistic insight into psychedelic drug action and may identify a biomarker to predict psilocybin response.

Trial Start: Spring 2026
Trial Length: Two years
Trial Location: Columbia University
Trial Cost Per Year: $315,000 per year

Low Dose Ketamine in Combination with Vortioxetine

This clinical trial proposes an elegant and novel combination of existing drugs to target specific cells in the prefrontal cortex to produce a fast-acting anti-depressant effect.

Ketamine is a new yet risky treatment which creates rapid new synapse formation (plasticity) in the brain’s prefrontal cortex. This study will test a combination of very lose dose ketamine and another currently available compound, vortioxetine, in patients with treatment resistant depression.

Our research shows that vortioxetine can significantly enhance the action of Ketamine at the cellular level.

This study has the potential to impact clinical outcomes immediately. The treatment approach could preselect potential ketamine responders and allow the use of lower doses in more targeted ways.

Trial Start: Spring 2026
Trial Length: Two Years
Trial Location: Weill Cornell Medicine
Trial Cost Per Year: $314,000

Precision Treatment for Patients with High Rejection Sensitivity Scores

Patients with depression often report lower self-esteem or feelings of worthlessness and feel readily rejected. This study tests a promising approach to personalized treatment for patients who score high on a test for these symptoms.

Our brains release resilience factors to restore balance after the stress “hit” of social rejection. However, this resilience response is dramatically blunted in depressed individuals, HDRF studies show.

HDRF will now test whether patients with high rejection sensitivity may benefit from an existing medication, Tianeptine, which restores natural resilience in disrupted brain areas. Tianeptine is an atypical antidepressant used clinically in Europe but never introduced in U.S.

This study has the potential to deliver results that will be immediately actionable in the clinic. It will also clearly classify a distinct sub-category of depression characterized by deficient resilience response to rejection cues.[1] The study will include fMRI brain scans of each subject before and after treatment, to show how improvements in the resilience mechanism lead to improvements in the patients’ mood and test scores.

Trial Start: Winter 2026
Trial Length: Three Years
Trial Location: Max Planck Institute, Germany
Trial Cost Per Year: $727,200

[1] Additionally, the trial seeks to examine whether genetic polymorphisms – particularly the A118G SNP in the mu-opioid receptor gene may further influence response to Tianeptine, offering an additional layer of biological precision.

Annual

Research Report

HDRF´s 2024

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HDRF´s 2022

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HDRF´s 2021

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HDRF´s 2018 -2019

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HDRF´s 2016 -2017

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HDRF´s 2015

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Newsletter

Spring 2025

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Spring 2024

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Fall 2022

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Spring 2022

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Fall 2021

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spring 2021

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Fall 2020

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2025

HDRF Funded Research Publications

Funding
History

To date, HDRF has awarded 104 research grants at 48 research institutions in 12 countries and 18 U.S. cities.

  • DOMESTIC
  • Beth Israel Medical Center
  • Bowling Green State University
  • Cleveland VA Medical Center
  • Cold Spring Harbor Laboratory
  • Columbia University
  • Emory University
  • Johns Hopkins University
  • Kent State University
  • Massachusetts General Hospital
  • Medical University of South Carolina
  • Mount Sinai School of Medicine
  • National Institute of Health
  • New York Psychiatric Institute
  • New York University
  • Northwestern University
  • Rockefeller University
  • Stanford University
  • State University of New York at Binghamton
  • Tufts University
  • University of Michigan
  • University of Pittsburgh
  • University of Washington
  • Washington State University
  • Wright State University
  • Yale University
  • INTERNATIONAL
  • Bangor University, Wales, UK
  • Bar Ilan University, Israel
  • Bonn University Medical Center, Germany
  • Brock University, Canada
  • German Primate Center, Germany
  • Hebrew University of Jerusalem, Israel
  • Kaunas University of Medicine, Lithuania
  • Kings College, London, UK
  • McGill University/Douglas Institute, Canada
  • Medical University of Vienna, Austria
  • Psychiatric University Hospital Zurich, Switzerland
  • Simon Fraser University, Canada
  • University of Cape Town, South Africa
  • University of Haifa, Israel
  • University of Innsbruck, Austria
  • University of Kassel/Sigmund Freud Institute, Germany
  • University of Magdeburg, Germany
  • University of Minho, Portugal
  • University of Montreal, Canada
  • University of Ottawa, Canada
  • University of Tartu, Estonia
  • University of Trieste, Italy
  • Weizmann Institute, Israel
  •  

The Hope for Depression Research Foundation is recognized by the Internal Revenue Service as a not-for-profit public charity (Tax ID 20-4559210), contributions to which are deductible for income and gift tax purposes.
All contributions are tax-deductible to the full extent allowed by law.