Sodium Oxybate in Patients With Episodic and Chronic Cluster Headache

Cluster Headache Clinical Trial

— SOinCH  

Official title:

Safety and Efficacy of Sodium Oxybate in the Prophylaxis of Headache and Sleep Disturbances in Patients With Chronic and Episodic Cluster Headache

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT02637648
• Other study ID #: BWSO0812
• Status: Not yet recruiting
• Phase: Phase 3
• First received: December 9, 2015
• Last updated: December 18, 2015
• Start date: December 2015
• Est. completion date: June 2017

Study information

• Verified date: December 2015
• Source: Klinik Barmelweid
• Contact: Ramin Khatami, MD
• Phone: +41 62 857 2220
• Email: ramin.khatami[@]barmelweid.ch
• Is FDA regulated: No
• Health authority: Switzerland: Swissmedic
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is to test the effects of sodium oxybate on headache response (frequency), sleep quality and quality of life in the prophylactic treatment of patients with chronic and episodic cluster headache. Oral sodium oxybate, 3-9g per night, starting with 3g in two nightly dosages of 1.5g and increased by steps of 1.5g every second or third night until treatment Response will be evaluated in an interventional, placebo-controlled, double-blind, randomised, parallel group, multicentre study. Primary outcome is reduction of nocturnal pain frequency Secondary outcomes are improvement of sleep quality at a subjective level as assessed by diary and standardized scales (PSQI, FOSQ), duration of pain free episodes, general clinical outcome (global evaluation), clinical global impression (CGI-S, CGI-I, CGI-E), quality of life (SF 36) and daytime sleepiness (Epworth Sleepiness Score).

Description:

Multicenter study to test the safety and efficacy of sodium oxybate in the prophylaxis of headache and sleep disturbances in patients with chronic and episodic cluster headache using a placebo-controlled, double blind, randomized study, parallel group design. Patients with predominant nocturnal attacks and poor sleep quality will be evaluated; At least 1 attack every other day and at least 8 attacks cumulatively by the time prior to randomization are required. Sodium oxybate will be orally administered, 3-9g per night, starting with 3g in two nightly dosages of 1.5g (the first at bedtime and the second 4 hours later). Dosage will be gradually increased by steps of 1.5g every second night until treatment response during a titration period of 14 days. Effects od sodium oxybate will be monitored via pain and sleep diaries during a 14 days stable treatment phase by reviewing sleep/pain diaries and Quality of life assessement. Primary outcomes are frequency of nocturnal pain attacks; Main secondary outcomes are frequency, intensity and duration of daytime pain attacks, improvement of sleep quality, quality of life, duration and rates of pain free episodes, decrease in escape medication for acute headache attacks (use of triptans). Safety parameters are ECG, laboratory, depressions scales, vital signs, respiratory polygraphy. Intent-to treat analysis, multivariate analysis of variance (MANOVA) with depending variable (reduction of pain frequency and pain intensity of nocturnal attacks) and the co-variates (age, sex , chronic vs. episodic CH).

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 60
• Est. completion date: June 2017
• Est. primary completion date: September 2016
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 18 Years to 75 Years

Eligibility

Inclusion Criteria:

1. Current diagnosis of cluster headache according to the criteria of International Headache Classification (ICHD-II, 2005) of the International Headache Society (IHS).

2. Diagnosis of cluster headache has been made at least 6 weeks after start of screening

3. Patients will have nocturnal pain attacks

4. Duration since onset of current cluster episode at least 1 week

5. Patients will have at least 1 attack per 48 hours and at least 4 attacks cumulatively by the time of visit 2 (prior to randomization)

6. Disturbed sleep quality

7. Patients have expressed a willingness to participate in and complete the study, and signed and dated informed consent prior to beginning protocol required procedures.

8. Women must be surgically sterile or 2 years postmenopausal. Females of child-bearing potential must use a medically accepted effective method of birth control. Patients should agree to continue this method for the duration of the study and for one month after the discontinuation of SO treatment. Women should be negative to serum pregnancy test performed at the screening visit. Females should not be breastfeeding patient.

9. In the opinion of the investigator, the patient must have adequate support to comply with the entire study requirements as described in the protocol (e.g., transportation to and from trial site, self rating scales and diaries completion, drug compliance, scheduled visits, tests).

10. If indicated by investigator, patient must be willing to not operate a car or heavy machinery for 6 hours after the last intake of the investigational drug during the duration of the trial or as long as the investigator deems clinically indicated. In addition, the patient should be willing to abstain during the study any alcohol consumption or behaviours which could interact with the investigational drug.

Exclusion Criteria:

1. The use of sodium oxybate or any previous investigational drugs within 30-day period prior to initial screening visit (V1) for this trial.

2. Change of prophylactic treatment 2 weeks prior of baseline visit 1

3. Have sleep apnea syndrome, defined as an Apnea index > 10 per hour or an Apnea-hypopnea Index (AHI) > 15/h or an oxygen desaturation index (ODI) > 15/h

4. Are taking hypnotics, tranquilizers, antihistamines (except for medication as defined in section 9.4.1. "authorized medication"), benzodiazepines at the start of the baseline period.

5. Patients with psychiatric and neurological disorders, such as moderate or severe psychosis or dementia, bipolar illness, severe anxiety, clinical depression (BDI = 16 with suicidal risk: item G BDI >0).

6. Patients who are experiencing any major illness, including unstable cardiovascular, endocrine, neoplastic, gastrointestinal, hematologic, hepatic, immunologic, metabolic, neurological, pulmonary, and/or renal disease which would place the patient at risk during the trial or compromise the objectives outlined in the protocol.

7. Patients who are unable or unwilling to temporarily discontinue any unauthorized drugs or substances, in particular refrain from alcohol (see section non-authorized treatments).

8. Current or recent (within one year) history of a substance abuse or dependence disorder including alcohol abuse as defined in Diagnostic and Statistical Manual of Mental Disorders (DSM-IV).

9. Patients taking anticonvulsants are not eligible to participate even if they are willing to washout anticonvulsants for the trial.

10. Patients having other problems that, in the investigators opinion, would preclude the patient`s participation and completion of this trial or compromise reliable representation of subjective symptoms.

11. Patients having a history of seizure disorder

12. Patients having a severe renal impairment (e.g. serum creatine greater than 2.0 mg/dl), or a with severe hepatic impairment (abnormal liver function tests SGOT [AST] or SGPT [ALT] more than twice of the upper limit of normal) or elevated serum bilirubin (more than 1.5 times the upper limit of normal) or receiving anti-vitamin K substances.

13. Any significant serious abnormality of the cardiovascular system e.g. recent myocardial infarction, angina, hypertension or dysrhythmias (within the prior 6 months), greater than a first degree AV block.

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Cluster Headache
• Headache

Intervention

Drug:
• Sodium Oxybate
parallel Group administration
• Placebo
parallel Group administration

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Ramin Khatami

References & Publications (1)

Khatami R, Tartarotti S, Siccoli MM, Bassetti CL, Sándor PS. Long-term efficacy of sodium oxybate in 4 patients with chronic cluster headache. Neurology. 2011 Jul 5;77(1):67-70. doi: 10.1212/WNL.0b013e31822313c6. Epub 2011 May 25. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	nocturnal pain frequency as assessed by patients reports	Reduction of nocturnal pain frequency as documented in patients diary,	4 weeks	No
Secondary	Improvement of sleep quality	Change assessed by PSQI (Pittsburgh Sleep Quality Inventory)	4 weeks	No
Secondary	pain free time as assessed by diary	number and duration of pain free time periods compared to baseline	4 weeks	No
Secondary	Clinical Global Impression	Change assessed by CGI-E scale	4 weeks	No
Secondary	Quality of life	Assessed by SF 36	through study completion	No
Secondary	Daytime Sleepiness	Improvement as assessed by Epworth Sleepiness Score	4 weeks	No
Secondary	Escape medication	Decrease in escape medication for acute headache attacks (use of triptans)	4 weeks	No
Secondary	Depression	Change in Beck`s depression inventory (BDI-II)	4 weeks	Yes
Secondary	Functional outcome of sleep quality	Changes as assessed by questionaire of Functional Outcomes of Sleep Questionaire (FOSQ)	4 weeks	No