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Study for Efficacy and Dose Escalation of AD313 + Atomoxetine (SEED)

Open-Label 4-Period Dose-Escalation Safety and Efficacy Study of AD313 in Participants With Obstructive Sleep Apnea

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05101122
Acronym
SEED
Enrollment
15
Registered
2021-11-01
Start date
2021-10-19
Completion date
2022-04-18
Last updated
2023-04-07

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

Conditions

Obstructive Sleep Apnea

Keywords

Apnea, Obstructive Sleep, Sleep Apnea Syndromes, Upper Airway Reistance Syndrome

Brief summary

The SEED study is designed to assess the safety and efficacy for Obstructive Sleep Apnea (OSA) of 3 escalating dose combinations of atomoxetine with AD313 compared to baseline and to atomoxetine alone.

Detailed description

The SEED study is an open-label, 4 consecutive period dose-escalation study of combinations of AD313 vs. atomoxetine alone in participants with moderate- to severe OSA. A screening polysomnogram (PSG) will be conducted to establish that each participant meets study enrollment criteria and to serve as baseline. Each participant will then receive escalating doses of AD313 with on-drug PSGs to be conducted on the final night of dosing.

Interventions

DRUGDosing 1: Atomoxetine

Oral administration at bedtime

DRUGAD313

Escalating dose of AD313; Oral administration at bedtime

Sponsors

Apnimed
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
25 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

Age and Sex 1. 25 to 65 years of age, inclusive, at the Screening Visit. Disease Measures 2. AHI 10 to 50 (hypopneas defined by 4% oxygen desaturation) 3. ≤25% of apneas are central or mixed apneas at V2 baseline PSG Weight 4. BMI between 18.5 and 40.0 kg/m2, inclusive, at the pre-PSG visit. Male participants: 5. If male and sexually active with female partner(s) of childbearing potential, participant must agree, from Study Day 1 through 1 week after the last dose of study drug, to practice the protocol specified contraception (see Appendix 4: Contraceptive Guidance and Collection of Pregnancy Information). Female participants: 6. If a woman of childbearing potential (WOCBP), the participant must agree, from Study Day 1 through 1 week after the last dose of study drug, to practice the protocol specified contraception (See Appendix 4: Contraceptive Guidance and Collection of Pregnancy Information). All WOCBP must have negative result of a serum pregnancy test performed at screening. 7. If female and of non-childbearing potential, the participant must be either postmenopausal (defined as age ≥ 55 years with no menses for 12 or more months without an alternative medical cause) or permanently surgically sterile (bilateral oophorectomy, bilateral salpingectomy or hysterectomy). Informed Consent 8. Participant voluntarily agrees to participate in this study and signs an Institutional Review Board (IRB)-approved informed consent prior to performing any of the Screening Visit procedures. 9. Participant must be able to understand the nature of the study and must have the opportunity to have any questions answered.

Exclusion criteria

Medical Conditions 1. History of clinically significant sleep disorder other than OSA. 2. Clinically significant craniofacial malformation. 3. Clinically significant cardiac disease (e.g., rhythm disturbances, coronary artery disease or cardiac failure) or hypertension requiring more than 2 medications for control (combination medications are considered as 1 medication for this purpose). 4. Clinically significant neurological disorder, including epilepsy/convulsions. 5. History of schizophrenia, schizoaffective disorder or bipolar disorder according to Diagnostic and Statistical Manual of Mental Disorders-5 (DSM 5) or International Classification of Disease tenth edition criteria. 6. History of attempted suicide within 1 year prior to screening, or current suicidal ideation. 7. Medically unexplained positive screen for drugs of abuse or history of substance use disorder as defined in DSM-V within 24 months prior to Screening Visit. 8. A significant illness or infection requiring medical treatment in the past 30 days. 9. Clinically significant cognitive dysfunction as determined by investigator. 10. Women who are pregnant or nursing. Prior/Concomitant Therapy 11. History of using devices for OSA treatment, including CPAP, oral or nasal devices, or positional devices, may enroll as long as the devices have not been used for at least 2 weeks prior to first study visit and are not used during participation in the study. 12. History of chronic oxygen therapy. 13. Use of medications from the list of disallowed concomitant medications. 14. Treatment with strong cytochrome P450 3A4 (CYP3A4) inhibitors, strong cytochrome P450 2D6 (CYP2D6) inhibitors, or monoamine oxidase inhibitors (MAOI) within 14 days of the start of treatment, or concomitant with treatment. Prior/Concurrent Clinical Study Experience 15. Use of another investigational agent within 30 days or 5 half-lives, whichever is longer, prior to dosing. Diagnostic Assessments 16. Hepatic transaminases \>2X the upper limit of normal (ULN), total bilirubin \>1.5X ULN (unless confirmed Gilbert syndrome), estimated glomerular filtration rate \< 60 ml/min. 17. PLM arousal index \>15 Other Exclusions 18. \<5 hours typical sleep duration. 19. ESS \> 18 20. Night- or shift-work sleep schedule which causes the major sleep period to be during the day. 21. Employment as a commercial driver or operator of heavy or hazardous equipment. 22. Typically smoking more than 10 cigarettes or 2 cigars per day, or inability to abstain from smoking during overnight PSG visits. 23. Unwilling to use specified contraception. 24. History of regular alcohol consumption of more than 14 standard units per week (males) or more than 7 standard units per week (females), or unwillingness to limit alcohol consumption to no greater than 2 units/day (males), 1 unit per day (females), not to be consumed within 3 hours of bedtime or on PSG nights. 25. Unwilling to limit during the study period caffeinated beverage intake (e.g., coffee, cola, tea) to 400 mg/day or less of caffeine, not to be used within 3 hours of bedtime. 26. Any condition that in the investigator's opinion would present an unreasonable risk to the participant, or which would interfere with their participation in the study or confound study interpretation. 27. Participant considered by the investigator, for any reason, an unsuitable candidate to receive atomoxetine and/or dronabinol or unable or unlikely to understand or comply with the dosing schedule or study evaluations. Meals and Dietary Restrictions 1. Participants should refrain from consumption of any nutrients known to modulate CYP enzyme activity (e.g., grapefruit or grapefruit juice, pomelo juice, star fruit, pomegranate, and Seville or Moro \[blood\] orange products) within 72 hours before the first dose of study drug and during the study. 2. Diet should be generally stable during the study, e.g., new diet programs should not be initiated. Caffeine, Alcohol, and Tobacco 1. During the outpatient portions of the study, participants should refrain from more than 2 standard units per day of alcohol for men or 1 unit/day for women, consumed no less than 3 hours prior to bedtime. Alcohol should not be consumed on PSG nights. 2. Moderate consumption of caffeinated beverages, containing up to a total of 400 mg caffeine per day, is permitted during the study period, consumed no less than 3 hours prior to bedtime.

Design outcomes

Primary

MeasureTime frameDescription
Apnea-Hypopnea Index (AHI)4% Events Per Hour28 daysCompares high dose atomoxetine (80/10) versus baseline

Countries

United States

Participant flow

Recruitment details

Participants will be recruited from an existing medical clinic and will have up to three weeks screening.

Participants by arm

ArmCount
Dosing Periods
Participants who meet all enrollment criteria will receive an escalating dose of atomoxetine the first week: 3 days of atomoxetine 40 mg followed by 4 days of atomoxetine 80 mg. Participants will then receive escalating dose combinations of atomoxetine and dronabinol for the next 3 weeks.
15
Total15

Withdrawals & dropouts

PeriodReasonFG000
AD313 40/2.5Withdrawal by Subject2
AD313 80/10Physician Decision1
AD313 80/5Withdrawal by Subject1
Atomoxetine OnlyWithdrawal by Subject1

Baseline characteristics

CharacteristicDosing Periods
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
15 Participants
Body Mass Index (BMI)31.9 kg/m2
STANDARD_DEVIATION 4.5
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
12 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Region of Enrollment
United States
15 participants
Sex: Female, Male
Female
4 Participants
Sex: Female, Male
Male
11 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 150 / 140 / 120 / 11
other
Total, other adverse events
9 / 157 / 146 / 125 / 11
serious
Total, serious adverse events
0 / 150 / 140 / 120 / 11

Outcome results

Primary

Apnea-Hypopnea Index (AHI)4% Events Per Hour

Compares high dose atomoxetine (80/10) versus baseline

Time frame: 28 days

ArmMeasureValue (MEDIAN)
BaselineApnea-Hypopnea Index (AHI)4% Events Per Hour28.6 events/hour
AD313 80/10Apnea-Hypopnea Index (AHI)4% Events Per Hour26.6 events/hour

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026