Want to Participate in a Clinical Research Trial for Depression?

Fill out this quick Pre-Screening Questionnaire for Depression

Depression

Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest. Also called major depressive disorder or clinical depression, it affects how you feel, think and behave and can lead to a variety of emotional and physical problems. You may have trouble doing normal day-to-day activities, and sometimes you may feel as if life isn’t worth living.

Symptoms:

Although depression may occur only once during your life, people typically have multiple episodes. During these episodes, symptoms occur most of the day, nearly every day and may include:

  • Feelings of sadness, tearfulness, emptiness or hopelessness
  • Angry outbursts, irritability or frustration, even over small matters
  • Loss of interest or pleasure in most or all normal activities, such as sex, hobbies or sports
  • Sleep disturbances, including insomnia or sleeping too much
  • Tiredness and lack of energy, so even small tasks take extra effort
  • Reduced appetite and weight loss or increased cravings for food and weight gain
  • Anxiety, agitation or restlessness
  • Slowed thinking, speaking or body movements
  • Feelings of worthlessness or guilt, fixating on past failures or self-blame
  • Trouble thinking, concentrating, making decisions and remembering things
  • Frequent or recurrent thoughts of death, suicidal thoughts, suicide attempts or suicide
  • Unexplained physical problems, such as back pain or headaches

Want to learn more about depression?

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  • Please complete this form to determine your eligibility for our depression studies

Name
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Birth Date
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Best Time and Date for us to reach you

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Expect a call from Excell Research Monday through Friday between 8:30am and 5:00pm PT at 760-758-2222
Consent

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Clinical Trial Studies

Pre-screening questionnaire and your privacy

Your privacy and confidentiality are our top priorities at Excell Research. By completing the study pre-screening questionnaire, you may be asked to provide personal details such as age, gender, and current medical condition. Rest assured, this information is solely used to assess your eligibility for our ongoing studies at our Oceanside, CA location.

Should you qualify, one of our staff members will reach out to conduct a phone-screening session. Please note that your personal information will be handled with the utmost care and will only be shared with relevant personnel involved in the clinical research study process.

We guarantee that your information will not be sold to third-party companies, and it will not be stored or collected without your explicit consent. Your trust is invaluable to us, and we are committed to maintaining the highest standards of privacy protection throughout your participation in our research studies. Thank you for considering Excell Research.

Many pharmaceutical companies and Excell Research are conducting these studies under the Food and Drug Administration (FDA) to learn more about new investigational drugs or treatments. Read our privacy policy to learn more about how your information will be kept private.

Other Clinical Research Trials Available to Participants

Join the forefront of scientific advancement by participating in Excell’s clinical trial studies. Your contribution could lead to groundbreaking treatments for prevalent and challenging diseases and conditions.

At Excell, we prioritize providing transparent and thorough information about the risks and benefits of participation. You’ll receive clear answers to all your inquiries, empowering you to make informed decisions about your health.

Additionally, financial compensation may be available for eligible participants who complete visits for our clinical trial studies.

Take the first step towards making a difference in medical research. Sign up for our clinical trial studies today and play a vital role in shaping the future of healthcare.

Sign up for Clinical Trial Studies today!

Generalized Anxiety Clinical Research Studies

Summary: Generalized Anxiety Disorder and Social Anxiety Disorder clinical trials aim to research investigational therapies for the aforementioned indications. Millions of people suffer from anxiety and it continues to become a growing trend within the general population.

Generalized Anxiety Disorder: Generalized Anxiety Disorder (GAD) is a mental health condition where a person experiences persistent, hard‑to‑control worry about everyday situations — even when there’s no clear reason to be alarmed. This ongoing worry often shows up as restlessness, trouble concentrating, muscle tension, irritability, and sleep difficulties. It’s common, real, and treatable, and many people find relief through therapy, medication, or a combination of both. 

 

 
Schizophrenia Clinical Research Studies

Summary: Schizophrenia clinical trials explore new treatments and therapies to improve the quality of life for individuals living with the condition. Participants may gain access to cutting-edge care, contribute to medical advancements, and receive compensation for their time. Trials typically involve diagnostic evaluations, medication or therapy protocols, and regular monitoring by medical professionals. Eligibility criteria vary, so interested individuals should consult with the trial coordinators to determine if they qualify.

Schizophrenia:

Schizophrenia is a long‑term medical condition that affects how a person thinks, feels, and experiences reality. It can involve hallucinations, delusions, or disorganized thinking, which may make everyday life feel confusing or overwhelming.

PTSD Clinical Research Studies

Summary: PTSD clinical trials evaluate new and emerging treatments designed to help reduce post‑traumatic stress symptoms and support daily functioning. Participants may gain access to innovative therapies, work with experienced research teams, and often receive compensation. Studies typically involve diagnostic assessments, therapy or medication protocols, and regular follow‑ups with clinical specialists. Eligibility differs by study, so interested individuals are encouraged to contact trial coordinators for details.

Post-Traumatic Stress Disorder (PTSD): Post‑Traumatic Stress Disorder (PTSD) is a condition that can develop after experiencing or witnessing a traumatic event. It involves lingering symptoms such as intrusive memories, nightmares, heightened fear responses, avoidance of reminders, changes in mood, and feeling constantly on edge. These symptoms can disrupt daily life, relationships, and overall well‑being.

Social Anxiety Clinical Research Studies

Summary: Social anxiety clinical trials explore new and emerging treatments aimed at reducing social‑anxiety symptoms and improving daily functioning. Participants may gain access to innovative therapies, work closely with experienced research teams, and often receive compensation. Studies typically include diagnostic assessments, therapy or medication protocols, and regular follow‑ups with clinical specialists. Eligibility varies by study, so interested individuals are encouraged to contact trial coordinators for more information.

Social Anxiety Disorder: Social Anxiety Disorder is a condition where everyday social interactions—like meeting new people, speaking in groups, or being observed—trigger intense fear or worry. People with social anxiety often fear being judged, embarrassed, or negatively evaluated, which can lead to avoidance, physical symptoms (such as a racing heart, shaking, or stomach discomfort), and distress that interferes with daily life.

Bipolar Disorder Clinical Research Studies

Summary: Bipolar disorder clinical trials evaluate new and emerging treatments aimed at supporting mood stability and improving daily functioning. Participants may gain access to innovative therapies, work closely with experienced research teams, and often receive compensation. Studies typically include diagnostic assessments, therapy or medication protocols, and regular follow‑ups with clinical specialists. Eligibility varies by study, so interested individuals are encouraged to contact trial coordinators for more information.

Bipolar Disorder: Bipolar disorder is a mental health condition marked by significant shifts in mood, energy, and activity levels. People experience periods of manic or hypomanic highs—with elevated energy, racing thoughts, or impulsive behavior—and depressive lows, which may include sadness, fatigue, and loss of interest in daily activities. These mood episodes can affect sleep, decision‑making, relationships, and overall functioning. 

Fibromyalgia Clinical Research Studies

Summary: Fibromyalgia clinical trials evaluate new and emerging treatments aimed at reducing widespread pain, fatigue, and other fibromyalgia‑related symptoms to support daily functioning. Participants may gain access to innovative therapies, work closely with experienced research teams, and often receive compensation. Studies typically include diagnostic assessments, therapy or medication protocols, and regular follow‑ups with clinical specialists. Eligibility varies by study, so interested individuals are encouraged to contact trial coordinators for more information.

Bipolar Disorder: Fibromyalgia is a chronic condition that causes widespread pain, fatigue, and heightened sensitivity to touch. Many people also experience sleep disturbances, cognitive difficulties (“fibro fog”), and fluctuations in symptom intensity. These symptoms can affect daily activities, energy levels, and overall quality of life.

Adult Migraine Clinical Research Studies

Summary: Migraine clinical trials evaluate new and emerging treatments designed to reduce migraine frequency, intensity, and related symptoms to support daily functioning. Adult and adolescent participants may gain access to innovative therapies, work closely with experienced research teams, and often receive compensation. Studies typically include diagnostic assessments, therapy or medication protocols, and regular follow‑ups with clinical specialists. Eligibility varies by study, so interested individuals are encouraged to contact trial coordinators for more information.

Bipolar Disorder: Migraine—in both adults and adolescents—is a neurological condition marked by recurring episodes of throbbing head pain, sensitivity to light or sound, nausea, and sometimes visual changes called auras. These attacks can last anywhere from hours to days and often disrupt school, work, and daily activities. In teens, migraines may show up as difficulty concentrating, fatigue, or needing to rest in dark, quiet spaces. These symptoms can affect daily activities, energy levels, and overall quality of life.

Adolescent Migraine Clinical Research Studies

Summary: Migraine clinical trials evaluate new and emerging treatments designed to reduce migraine frequency, intensity, and related symptoms to support daily functioning. Adult and adolescent participants may gain access to innovative therapies, work closely with experienced research teams, and often receive compensation. Studies typically include diagnostic assessments, therapy or medication protocols, and regular follow‑ups with clinical specialists. Eligibility varies by study, so interested individuals are encouraged to contact trial coordinators for more information.

Bipolar Disorder: Migraine—in both adults and adolescents—is a neurological condition marked by recurring episodes of throbbing head pain, sensitivity to light or sound, nausea, and sometimes visual changes called auras. These attacks can last anywhere from hours to days and often disrupt school, work, and daily activities. In teens, migraines may show up as difficulty concentrating, fatigue, or needing to rest in dark, quiet spaces. These symptoms can affect daily activities, energy levels, and overall quality of life.