A Study to Assess the Efficacy and Safety of Oral CL-H1T in the Treatment of Acute Migraine Pain
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT03877718 |
Recruitment Status :
Completed
First Posted : March 18, 2019
Last Update Posted : November 1, 2019
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Condition or disease | Intervention/treatment | Phase |
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Migraine Pain Nausea Vomiting Aura | Drug: Arm 1: CL-H1T Drug: Arm 2: CL-H1T Drug: Arm 3: Sumatriptan Succinate 100 mg capsule Drug: Arm 4: Promethazine HCl 18.75 mg Drug: Arm 5: Promethazine HCl 37.5 mg Other: Placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 475 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Masking Description: | Double Blind |
Primary Purpose: | Treatment |
Official Title: | A Study to Assess the Efficacy and Safety of Oral CL-H1T in the Treatment of Acute Migraine Pain, With or Without Aura, and the Prevention of Migraine Associated Nausea and Vomiting. |
Actual Study Start Date : | February 1, 2019 |
Actual Primary Completion Date : | August 27, 2019 |
Actual Study Completion Date : | August 27, 2019 |

Arm | Intervention/treatment |
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Experimental: Arm 1: CL-H1T
Maximum dosage within a 24-hour period: One capsule of CL-H1T (total dose: sumatriptan succinate 90mg/promethazine hydrochloride 18.75mg)
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Drug: Arm 1: CL-H1T
One capsule of CL-H1T (total dose: sumatriptan succinate 90mg/promethazine HCl 18.75 mg)
Other Name: sumatriptan succinate 90mg/promethazine HCl 18.75mg |
Experimental: Arm 2: CL-H1T
Maximum dosage within a 24-hour period: One capsule of CL-H1T (total dose: sumatriptan succinate 90mg/promethazine HCl 37.5mg)
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Drug: Arm 2: CL-H1T
One capsule of CL-H1T (total dose: sumatriptan succinate 90mg/promethazine HCl 37.5 mg)
Other Name: sumatriptan succinate 90mg/promethazine HCl 37.5mg |
Experimental: Arm 3: Sumatriptan succinate 100 mg
Maximum dose within a 24 hour period: One capsule of sumatriptan succinate 100mg
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Drug: Arm 3: Sumatriptan Succinate 100 mg capsule
One capsule of sumatriptan succinate 100 mg
Other Name: Sumatriptan succinate 100 mg |
Experimental: Arm 4: Promethazine HCl 18.75 mg
Maximum dose within a 24 hour period: One capsule of promethazine HCl 18.75mg
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Drug: Arm 4: Promethazine HCl 18.75 mg
One capsule of promethazine HCl 18.75 mg
Other Name: Promethazine HCl 18.75 |
Experimental: Arm 5: Promethazine HCl 37.5 mg
Maximum dose within a 24 hour period: One capsule of promethazine HCl 37.5mg
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Drug: Arm 5: Promethazine HCl 37.5 mg
One capsule of promethazine HCl 37.5 mg
Other Name: Promethazine HCl 37.5 |
Experimental: Arm 6: Placebo
Maximum dose within a 24 hour period: One capsule of placebo
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Other: Placebo
One capsule of placebo |
- Percentage of subjects who are pain-free 2 hours after taking investigational treatment [ Time Frame: 2 hours ]
- Percentage of subjects who are nausea-free 2 hours after taking investigational treatment [ Time Frame: 2 hours ]
- Percentage of subjects with no vomiting 2 hours after taking the investigational treatment [ Time Frame: 2 hours ]

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, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 75 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Able to understand and willing to give written informed consent and authorize the Health Insurance Portability and Accountability Act (HIPAA) prior to entering the study.
- Men and women with episodic migraine who meet the criteria of the International Headache Society's Headache Classification Committee for migraine with or without aura.
- Between the ages of 18 and 75 years of age, inclusive.
- A history of episodic migraine for at least 1 year.
- Maximal frequency of 8 migraine attacks per month; minimum frequency of 2 migraine attacks per month; at least 48 hours of headache-free time between migraine attacks.
- Maximum total headache days of 14 per month.
- History of migraine headache with nausea ≥ 50% of the time.
- Able and willing to complete an electronic diary (eDiary) to record the details of a migraine attack treated with investigational treatment.
- Able to swallow a capsule whole.
- Report headache on the Headache Pain Scale at Baseline before treatment.
- Report the presence of nausea on the Nausea Scale at Baseline before treatment.
- Women of childbearing potential (WOCBP) must practice an acceptable method of birth control (acceptable methods of birth control in this study include: surgical sterilization, intrauterine device, oral contraceptive, contraceptive patch, long-acting injectable contraceptive, partner's vasectomy, or a double-barrier method [condom or diaphragm with spermicide]). Use of intrauterine devices and hormonal contraceptives must begin at least 8 weeks prior to Screening.
- Willing and able to comply with the protocol requirements for the duration of the study.
Exclusion Criteria:
- A clinically significant or unstable medical or surgical condition that would preclude safe and complete study participation. Such conditions may include cardiac, respiratory, hepatic, renal or metabolic diseases, peripheral vascular disease, any systemic disease, acute infection, or neurological disease (including Parkinson's Disease or other condition associated with a movement disorder), current malignancy or recent history (within 5 years) of malignancy (other than squamous cell or basal cell carcinoma) or any medical condition that, in the opinion of the Investigator, makes the subject unsuitable for participation in the study.
- A positive saliva screen for alcohol or a positive urine drug screen for cocaine, narcotics, benzodiazepines, opioids, tetrahydrocannabinol (THC), barbiturates, amphetamines, or any prescription drugs unless such a positive result can be explained by stated concomitant medications.
- Regularly smoke cigarettes or use opiate analgesic drugs, benzodiazepines, ergot containing drugs, alcohol, THC, or other drugs of abuse that, at the discretion of the Investigator, may interfere with the evaluation of the endpoints in the trial.
- Unstable use of prophylactic migraine medication (eg, change of dose or type of medication) during the 30 days prior to Screening Visit.
- Subjects using monoamine oxidase-A (MAO-A) inhibitors and who cannot be washed out.
- Subjects using selective serotonin reuptake inhibitors (SSRIs), serotonin norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants, THC, or systemic corticosteroids over the past month prior to the Screening Visit.
- Daily use of antipsychotics at least 15 days prior to randomization.
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Medication overuse:
- Opioids for headache ≥ 10 days during the 90 days prior to Screening Visit;
- Combination medications that contain an opioid and/or barbiturate (eg, Fiorinal®) ≥ 10 days during the 90 days prior to Screening Visit.
- Nonsteroidal anti-inflammatory drugs (NSAIDs) or other simple medications ˃ 14 days a month during the 90 days prior to Screening Visit.
- Triptans or ergots ≥ 10 days a month during the 90 days prior to Screening Visit.
- Use of mini prophylaxis for menstrual migraine.
- History of allergic reaction or drug sensitivity to any triptans.
- History of allergic reaction or drug sensitivity to promethazine.
- History of allergic reaction or drug sensitivity to acetaminophen.
- History of extrapyramidal reaction (eg, akathisia or dystonia) to neuroleptic treatments.
- Subjects who are pregnant (positive urine hCG: Human chorionic gonadotropin test at Screening Visit) or breastfeeding.
- Use of experimental or investigational treatments and/or participation in drug clinical studies within the 6 months before the Screening Visit.
- Subjects who are employees of the Sponsor.
- Relatives of, or staff directly reporting to, the Investigator.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03877718
United States, Florida | |
Suncoast Clinical Research, Inc. | |
New Port Richey, Florida, United States, 34652 | |
Harmony Clinical Research, Inc. | |
North Miami Beach, Florida, United States, 33162 | |
United States, South Carolina | |
Mountain View Cl inical Research, Inc. | |
Greer, South Carolina, United States, 29651 |
Study Chair: | Bernard P. Schachtel, MD | Charleston Laboratories |
Responsible Party: | Charleston Laboratories, Inc |
ClinicalTrials.gov Identifier: | NCT03877718 |
Other Study ID Numbers: |
CL02-204 |
First Posted: | March 18, 2019 Key Record Dates |
Last Update Posted: | November 1, 2019 |
Last Verified: | March 2019 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Acute Migraine Pain Acute Migraine Pain, With or Without Aura Prevention of Migraine Associated Nausea and Vomiting (MANV) |
Migraine Disorders Nausea Vomiting Headache Disorders, Primary Headache Disorders Brain Diseases Central Nervous System Diseases Nervous System Diseases Signs and Symptoms, Digestive Promethazine Diphenhydramine Sumatriptan Vasoconstrictor Agents Serotonin 5-HT1 Receptor Agonists Serotonin Receptor Agonists |
Serotonin Agents Neurotransmitter Agents Molecular Mechanisms of Pharmacological Action Physiological Effects of Drugs Antipruritics Dermatologic Agents Histamine H1 Antagonists Histamine Antagonists Histamine Agents Anti-Allergic Agents Sleep Aids, Pharmaceutical Hypnotics and Sedatives Central Nervous System Depressants Anesthetics, Local Anesthetics |