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DReAMzz- Dronabinol and Acetazolamide Medication for Sleep Apnea (ZZ). Dose Confirmation Crossover Study for IHL-42X in Subjects With Obstructive Sleep Apnea. (DReAMzz)

13 de septiembre de 2026 actualizado por: Incannex Healthcare Ltd

Phase II, Randomized, Double-Blind, Multidose Crossover Clinical Trial to Determine the Safety and Efficacy of IHL-42X in Subjects With Obstructive Sleep Apnea

The goal of this randomized, double-blind, multi-dose crossover clinical trial is to determine the safety and efficacy of IHL-42X in subjects with obstructive sleep apnea.

The primary endpoint is: Change in AHI4 at the end of each treatment period compared to baseline (each treatment period is 28 days).

The study will consist of three separate four-way crossover dose-comparison studies each comparing three dose strengths of IHL-42X to placebo. The double-blind four-way crossover will be conducted according to a Williams design. Each of the crossover studies will test different doses of dronabinol in combination with a distinct, set dose of acetazolamide. In total, nine different combinations of dronabinol and acetazolamide formulated as IHL-42X will be tested in the study. The optimal dose strength will be selected based on safety and efficacy over a 4-week treatment period.

Descripción general del estudio

Estado

Reclutamiento

Condiciones

Intervención / Tratamiento

Tipo de estudio

Intervencionista

Inscripción (Estimado)

120

Fase

  • Fase 2

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

  • Nombre: Pia Kroner
  • Número de teléfono: +61 (2) 9634 4508
  • Correo electrónico: pia@incannex.com.au

Copia de seguridad de contactos de estudio

  • Nombre: Mark Bleackley
  • Número de teléfono: +61 2 9634 4508
  • Correo electrónico: mark@incannex.com.au

Ubicaciones de estudio

  • Estados Unidos
    • California
      • Chula Vista, California, Estados Unidos, 91910
        • Aún no reclutando
        • Exalt Clinical Research
        • Contacto:
        • Investigador principal:
          • David Bortz
    • Florida
      • Brandon, Florida, Estados Unidos, 33511
        • Reclutamiento
        • Teradan Clinical Trials LLC
        • Investigador principal:
          • Daniel Lorch
        • Contacto:
      • Jacksonville, Florida, Estados Unidos, 32256
        • Aún no reclutando
        • CNS Healthcare - Jacksonville
        • Investigador principal:
          • Mark Joyce
        • Contacto:
      • Orlando, Florida, Estados Unidos, 32801
        • Reclutamiento
        • CNS Healthcare Orlando
        • Contacto:
        • Sub-Investigador:
          • Felipe Suplicy
      • West Palm Beach, Florida, Estados Unidos, 33409
        • Reclutamiento
        • Palm Beach Research Center
        • Investigador principal:
          • Mira Baron
        • Contacto:
      • Winter Park, Florida, Estados Unidos, 32789
        • Retirado
        • Conquest Research/Neurotrials
    • Louisiana
      • Marrero, Louisiana, Estados Unidos, 70072
        • Aún no reclutando
        • Tandem Clinical Research
        • Investigador principal:
          • Angela Traylor
        • Contacto:
    • Maryland
      • Rockville, Maryland, Estados Unidos, 20854
        • Reclutamiento
        • Velocity Clinical Research, Rockville
        • Investigador principal:
          • Asefa Mekonnen
        • Contacto:
    • Ohio
      • Cincinnati, Ohio, Estados Unidos, 45212
        • Reclutamiento
        • CTI Clinical Research Center
        • Contacto:
        • Investigador principal:
          • Robert Wagner
      • Cincinnati, Ohio, Estados Unidos, 45245
        • Reclutamiento
        • Intrepid Research
        • Investigador principal:
          • Bruce Corser
        • Contacto:
    • South Carolina
      • Anderson, South Carolina, Estados Unidos, 29621
        • Reclutamiento
        • Velocity Clinical Research, Anderson
        • Investigador principal:
          • Charles Thompson
        • Contacto:
    • Tennessee
      • Memphis, Tennessee, Estados Unidos, 38119
        • Reclutamiento
        • CNS Healthcare - Memphis
        • Investigador principal:
          • Lora McGill
        • Contacto:
    • Texas
      • Dallas, Texas, Estados Unidos, 75251
        • Aún no reclutando
        • FutureSearch Trials of Dallas
        • Investigador principal:
          • Michael Downing
        • Contacto:
      • San Antonio, Texas, Estados Unidos, 78229
        • Reclutamiento
        • Sleep Therapy & Research Center
        • Contacto:
        • Investigador principal:
          • James Andry

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

No

Descripción

Inclusion Criteria

Participants must satisfy all the following criteria at screening unless otherwise stated:

  1. Aged ≥18 and ≤65 years of age at the time of consent.

  2. Two screening PSG findings confirmed on central over-read that both must meet the below criteria:

    1. AHI4 ≥5
    2. ≤25% central or mixed apneas out of total AHI
    3. no Cheyne-Stokes respiration
    4. total sleep time ≥ 4 hours in each PSG
    5. < 30 periodic leg movement disorder arousals per hour.
  3. A difference in AHI4 of ≤15 between screening PSG 1 and screening PSG 2.
  4. A PROMIS-SRI 8a score of >16.

  5. Intolerant or non-compliant to PAP, or has refused PAP after physician recommendation. Participants will be identified as intolerant or non-compliant to PAP devices by the following criteria (NB: OSA diagnosis must be entered in participant medical history):

    1. Participants are regarded as PAP-non-compliant if they do not use PAP for ≥ 4 hours for at least 63 nights during consecutive 90-day period based on data collected from the PAP device (e.g., SD storage cards) and/or a cloud-based repository of PAP device data.
    2. Participants are regarded as PAP-intolerant if they are former PAP users, i.e., a PAP device that they have not used for >90 days, have tried PAP and not continued to use it or refusal of PAP after prior positive sleep study or prior refusal of provider recommended sleep study due to unwillingness to consider PAP.

    NB: Participants will have the benefits and risks of PAP explained at screening, including that PAP is standard of care for OSA. Participants also have the option to withdraw from the study at any time if he/she elects to be treated with PAP or other alternative therapy such as an oral appliance or surgery.

  6. Must agree not to take any form of cannabis or cannabinoid with the exception of the IP, or any other illicit or recreational drug while participating in this study.

  7. A female participant of childbearing potential must agree to at least one approved highly effective method of contraception. Approved methods of contraception include the following:

    1. Intra-uterine device in place for at least 3 months prior to Day 1 through to 10 days following the last dose of the study drug.

    2. Stable hormonal contraceptive which includes oral, intravaginal, intrauterine, transdermal, injectable, or implantable methods of hormonal contraception for at least 3 months prior to Day 1 through to 10 days after the last dose of the study drug.

      NB: Barrier method (condom or diaphragm) is not considered 'highly effective' for the purpose of this study and should be used in combination with one of the approved highly effective methods listed above.

      A female will not be considered of childbearing potential if:

    3. 12 months of spontaneous amenorrhea or 6 months of spontaneous amenorrhea with serum follicle-stimulating hormone (FSH) levels > 40 mIU/ml.
    4. Undergone bilateral tubal ligation, hysterectomy, or bilateral oophorectomy at least 6 months prior to Day 1.

  8. A male participant must agree to use at least 1 approved method of contraception (or as required by local regulations) while engaging in sexual activity from study Day -1 through EOS follow-up and/or up to 10 days following the last administration of the study drug. Male participants must not donate sperm during this same period. Approved methods of contraception include the following:

    1. Barrier method (condom) from date of consent through to 10 days after the final dose of the study drug.
    2. Surgical sterilization (vasectomy) at least 6 months prior to Day 1 with proof of azoospermia.
  9. Voluntarily written consent to participate in the study and be willing and able to participate in all scheduled visits, treatment plans, tests, and other study procedures according to the protocol.

Exclusion Criteria:

Participants will be excluded from the study if they satisfy any of the following criteria at screening, unless otherwise stated:

  1. Body mass index (BMI) >40 kg/m2 (men) and >42 kg/m2 (women).
  2. Diagnosed obesity hypoventilation syndrome or hypercapnia.
  3. PAP-compliant, defined by use of PAP for ≥4 hours for at least 63 nights during the consecutive 90-day period.
  4. Current use of custom-made oral appliances (mandibular advancement device, tongue retaining device, or mouth guard) or hypoglossal nerve stimulation devices. Devices must not be used for the duration of the study.
  5. Maxillomandibular advancement, upper airway, or bariatric surgery within the last 6 months prior to first administration of the study drug; or participants who are planning surgical treatment.
  6. Have commenced glucagon-like peptide-1 receptor agonist therapy within the last 6 months.
  7. Use of benzodiazepines, sedative-hypnotics or stimulants (Anatomical Therapeutic Chemical [ATC] N06B, N05C, N05BA, N03AE, and N01AF categories) to treat insomnia, OSA, and other sleep disorders, or other disorders that require the drug to be taken prior to sleep.
  8. Use of other prescription medications to treat insomnia.
  9. Pierre Robin, Treacher Collins, or other craniofacial malformation syndrome, or grade ≥3 tonsillar hypertrophy.
  10. Respiratory and neuromuscular diseases that could interfere with the results of the trial in the opinion of the investigator.
  11. Known allergic or other severe reaction to cannabis products with previous use.
  12. Known allergic reaction to sesame oil.
  13. Known allergic reaction to acetazolamide.
  14. Pregnant or breastfeeding.

  15. Current illicit drug abuse (within the last 6 months prior to screening); "abuse" has some subsets that are objective and some that require investigator judgement; questions should be discussed with the medical monitor or with the sponsor

    1. An objective subset includes consumption of substances that are "illicit", i.e., not legal per local laws
    2. Investigator judgement is expected for legally marketed products ingested for other than the approved indication(s)
    3. Participants who test positive to THC should be screen failed and can be considered for rescreening after a >6-week washout period. Participants can only be rescreened once. Positive test results for all other substances shall be reviewed by the investigator and participants shall only be screen failed if the investigator believes the use of the substance may be clinically significant with regards to the participant's safe participation in this study or may confound this study's findings.
  16. Severe depression, defined as a score of ≥30 on the Major Depression Inventory (MDI) questionnaire.
  17. Severe anxiety, defined as score of >15 on the General Anxiety Disorder-7 (GAD-7) questionnaire.

  18. Any of the following co-morbid conditions (NB: clarification on co-morbidities and inclusion/exclusion criteria may be discussed with the medical monitor and/or sponsor):

    1. Severe psychiatric disorder that might be aggravated or exacerbated by dronabinol's potential to cause anxiety/nervousness, depersonalization, hallucination, etc.
    2. Respiratory and neuromuscular diseases that could interfere with the results of the trial in the opinion of the investigator.
    3. Cardiac dysfunction and/or its treatment that might augment dronabinol's potential to cause tachycardia or vasodilation.
    4. Marked hepatic dysfunction as defined by elevated alanine aminotransferase (ALT) or aspartate aminotransferase (AST) ≥3 × the upper limit of normal (ULN), that would reduce dronabinol metabolism.

    i. One retest per participant is permitted at the discretion of the investigator; the participant may continue if BOTH repeat transaminase levels are within acceptable range (i.e., less than 3 × ULN).

    e. Current or history of encephalopathy or cirrhosis Child-Pugh category B or C (see Appendix 8) since acetazolamide can increase blood ammonia levels precipitating a bout of hepatic encephalopathy.

    f. Marked renal dysfunction that would reduce acetazolamide excretion, including eGFR <60 mL/min/1.73 m2, as determined using the National Kidney Foundation calculator (https://www.kidney.org/professionals /kdoqi/gfr_calculator) and instructions in Appendix 9.

    g. Hypokalemia (low blood potassium), hyponatremia (low blood sodium), hyperchloremic acidosis, and/or adrenal insufficiency that might be aggravated or exacerbated by acetazolamide's activity as a carbonic anhydrase inhibitor.

  19. Known CYP2C9 poor metabolizers (NB: this is based on medical history and does not need to be tested genetically).
  20. Other ongoing condition(s) that the investigator considers may be clinically significant with regards to the participant's safe participation in this study or may confound this study's findings; any consideration should be discussed with the medical monitor or with the sponsor (such as known alcohol abuse).
  21. Shift workers whose shift pattern has the potential to disrupt sleep patterns.
  22. Participation in any other interventional studies involving investigational or marketed products within 30 days or 5.5 half-lives, whichever is longer, prior to screening.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación cruzada
  • Enmascaramiento: Cuadruplicar

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: IHL-42X: 2.5 mg dronabinol + 125 mg acetazolamide
IHL-42X (2.5 mg dronabinol + 125 mg acetazolamide), self-administered once daily every night approximately 1 hour prior to bed for 4 weeks.
Droga: IHL-42X: 2.5 mg dronabinol + 125 mg acetazolamide
DReAMzz Phase 2 Investigational Product - IHL-42X Dose 1
Experimental: IHL-42X: 5 mg dronabinol + 125 mg acetazolamide
IHL-42X (5 mg dronabinol + 125 mg acetazolamide), self-administered once daily every night approximately 1 hour prior to bed for 4 weeks.
Droga: IHL-42X: 5 mg dronabinol + 125 mg acetazolamide
DReAMzz Phase 2 Investigational Product - IHL-42X Dose 2
Experimental: IHL-42X: 7.5 mg dronabinol + 125 mg acetazolamide
IHL-42X (7.5 mg dronabinol + 125 mg acetazolamide), self-administered once daily every night approximately 1 hour prior to bed for 4 weeks.
Droga: IHL-42X: 7.5 mg dronabinol + 125 mg acetazolamide
DReAMzz Phase 2 Investigational Product - IHL-42X Dose 3
Experimental: IHL-42X: 2.5 mg dronabinol + 250 mg acetazolamide
IHL-42X (2.5 mg dronabinol + 250 mg acetazolamide), self-administered once daily every night approximately 1 hour prior to bed for 4 weeks.
Droga: IHL-42X: 2.5 mg dronabinol + 250 mg acetazolamide
DReAMzz Phase 2 Investigational Product - IHL-42X Dose 4
Experimental: IHL-42X: 5 mg dronabinol + 250 mg acetazolamide
IHL-42X (5 mg dronabinol + 250 mg acetazolamide), self-administered once daily every night approximately 1 hour prior to bed for 4 weeks.
Droga: IHL-42X: 5 mg dronabinol + 250 mg acetazolamide
DReAMzz Phase 2 Investigational Product - IHL-42X Dose 5
Experimental: IHL-42X: 7.5 mg dronabinol + 250 mg acetazolamide
IHL-42X (7.5 mg dronabinol + 250 mg acetazolamide), self-administered once daily every night approximately 1 hour prior to bed for 4 weeks.
Droga: IHL-42X: 7.5 mg dronabinol + 250 mg acetazolamide
DReAMzz Phase 2 Investigational Product - IHL-42X Dose 6
Experimental: IHL-42X: 2.5 mg dronabinol + 375 mg acetazolamide
IHL-42X (2.5 mg dronabinol + 375 mg acetazolamide), self-administered once daily every night approximately 1 hour prior to bed for 4 weeks.
Droga: IHL-42X: 2.5 mg dronabinol + 375 mg acetazolamide
DReAMzz Phase 2 Investigational Product - IHL-42X Dose 7
Experimental: IHL-42X: 5 mg dronabinol + 375 mg acetazolamide
IHL-42X (5 mg dronabinol + 375 mg acetazolamide), self-administered once daily every night approximately 1 hour prior to bed for 4 weeks.
Droga: IHL-42X: 5 mg dronabinol + 375 mg acetazolamide
DReAMzz Phase 2 Investigational Product - IHL-42X Dose 8
Experimental: IHL-42X: 7.5 mg dronabinol + 375 mg acetazolamide
IHL-42X (7.5 mg dronabinol + 375 mg acetazolamide), self-administered once daily every night approximately 1 hour prior to bed for 4 weeks.
Droga: IHL-42X: 7.5 mg dronabinol + 375 mg acetazolamide
DReAMzz Phase 2 Investigational Product - IHL-42X Dose 9
Comparador de placebos: Placebo: Negative control
One capsule self-administered once daily every night approximately 1 hour prior to bed for 4 weeks
Droga: Placebo: Negative control
DReAMzz Phase 2 Placebo

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Change in AHI4 at the end of each treatment period compared to baseline
Periodo de tiempo: Each treatment period (28 days)
To assess the change in efficacy at the end of each dosing period compared with baseline.
Each treatment period (28 days)

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Percent change in AHI4 at the end of each treatment period compared to baseline
Periodo de tiempo: Each treatment period (28 days)
Each treatment period (28 days)
Change in Functional Outcomes of Sleep Questionnaire 10-items (FOSQ-10) at the end of each treatment period compared to baseline
Periodo de tiempo: Each treatment period (28 days)
Each treatment period (28 days)
Change in Patient-reported outcome measurement information system (PROMIS)-Fatigue 7a at the end of each treatment period compared to baseline
Periodo de tiempo: Each treatment period (28 days)
Each treatment period (28 days)
Change in Patient-reported outcome measurement information system - Sleep Related Impairment (PROMIS-SRI) 8a at the end of each treatment period compared to baseline
Periodo de tiempo: Each treatment period (28 days)
Each treatment period (28 days)
Change in Patient Global Impression of Severity (PGI-S) the end of each treatment period compared to baseline
Periodo de tiempo: Each treatment period (28 days)
Each treatment period (28 days)
Patient Global Impression of Change (PGI-C) score at the end of each treatment period compared to baseline
Periodo de tiempo: Each treatment period (28 days)
Each treatment period (28 days)
Change in Patient-reported Longitudinal Assessment Tool for OSA-11 item (PLATO) at the end of each treatment period compared to baseline
Periodo de tiempo: Each treatment period (28 days)
Each treatment period (28 days)
Change in Epworth Sleepiness Scale (ESS) at the end of each treatment period compared to baseline
Periodo de tiempo: Each treatment period (28 days)
Each treatment period (28 days)
Change in Oxygen Desaturation Index (ODI) (from PSG) at the end of each treatment period compared to baseline
Periodo de tiempo: Each treatment period (28 days)
Each treatment period (28 days)
Change in hypoxic burden at the end of each treatment period compared to baseline
Periodo de tiempo: Each treatment period (28 days)
Each treatment period (28 days)
Percent of participants whose OSA severity reduces by one or more levels with severe OSA AHI4 ≥30, moderate OSA AHI4 15-30, mild OSA AHI4 <15
Periodo de tiempo: 140 days
140 days
Percent of participants with ≥50% reduction in AHI4
Periodo de tiempo: 140 days
140 days
Percent of participants with AHI4 <5
Periodo de tiempo: 140 days
140 days
Adverse events and treatment-emergent adverse events (TEAEs), clinically significant out of range values or findings from clinical laboratory test results, electrocardiogram (ECG), vital signs, and physical examinations
Periodo de tiempo: 140 days
To evaluate the safety and tolerability of IHL-42X
140 days

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Incannex Healthcare Ltd

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

21 de julio de 2026

Finalización primaria (Estimado)

1 de abril de 2027

Finalización del estudio (Estimado)

1 de mayo de 2027

Fechas de registro del estudio

Enviado por primera vez

3 de junio de 2026

Primero enviado que cumplió con los criterios de control de calidad

3 de junio de 2026

Publicado por primera vez (Actual)

9 de junio de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

15 de septiembre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

13 de septiembre de 2026

Última verificación

1 de septiembre de 2026

Más información

Términos relacionados con este estudio

Palabras clave

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • IHL42XOSAP2X

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

Sí

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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