ClinicalTrials.gg
CompletedNCT01311440Updated Sep 19, 2017

Modified Atkins Diet Treatment for Adults With Drug-resistant Epilepsy

An interventional study of Modified Atkins diet treatment in Epilepsy, Focal Epilepsy and Generalized Epilepsy, sponsored by Oslo University Hospital. Completed at 1 site in Norway. Open to participants aged 16 Years and older. Per ClinicalTrials.gov, last updated 2017-09-19.

Sponsored by Oslo University Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
75
Allocation
Randomized
Ages
16 Years and older
Sex
All
01

Study summary

In Oslo University Hospital, department of complex epilepsy, offer ketogenic diet to treat children with medically intractable epilepsy. From 2009 we added modified Atkins diet as a treatment option for children up to 18 years.

We now initiate an open, prospective, randomized and controlled study with the aim to test the efficacy of treatment with modified Atkins diet in adults with focal and generalized epilepsy diagnoses, in order to evaluate whether this treatment should be offered to patients on a permanent basis.

Read the detailed description

Poorly controlled epilepsy in adults affects health and quality of life in many ways. Within this heterogenous population there are individuals who are motivated for a very strict diet in order to reduce seizures.

Among adults with epilepsy 75 - 80 % are diagnosed with focal epilepsy, while 20 - 25 % have generalized onset of seizures.

We plan to include 92 patients with focal epilepsy diagnosis. Those are randomized into diet and control groups.

During the inclusion period we also treat patients with generalized epilepsy that qualify for participation, but these are not to be randomized, rather they will follow the diet group course. We assume 18 - 23 patients with generalized epilepsy will be included in the project.

02

Conditions studied

  • Epilepsy
  • Focal Epilepsy
  • Generalized Epilepsy

Keywords

  • RCT
  • modified Atkins diet
  • epilepsy
  • adults
  • ketogenic diet
03

In context

Epilepsy

1,848 studies on the registry are indexed under Epilepsy; 422 are open to participants now.

This study's enrollment of 75 is above the median of 50 across 1,239 interventional studies indexed under Epilepsy.

Browse Epilepsy studies →

Lead sponsor

Oslo University Hospital is the lead sponsor of 834 studies on the registry; 149 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
16 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Focal or generalized epilepsy diagnosis
  • More than 3 recordable seizures per month
  • > 18,5
  • Not responded to at least three 3 AEDs
  • 16 years or older
  • Motivated to complete the diet after thorough information
  • Capable of recording seizures
  • Capable of preparing the diet

Exclusion criteria

Exclusion Criteria:

  • Hypercholesterolemia, cardiovascular disease or kidney disease
  • Been on modified Atkins diet for more than one week during the last year
  • Status epilepticus last six months
  • epilepsy surgery or VNS implant last year
  • 4 weeks continuous seizure freedom last 2 months
  • PNES seizures
  • other disease where dietary treatment is
  • usage of drugs or supplements that may interfere with diet or AED
  • being pregnant or planning pregnancy
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
75 participants (actual)

Study arms

  • Experimental
    Modified Atkins diet treatment

    12 weeks of Modified Atkins diet treatment, recording seizures

    Other: Modified Atkins diet treatment

  • No intervention
    No intervention

    12 weeks seizure record

Interventions

  • OtherModified Atkins diet treatment

    Eat a diet containing 16 grams of carbohydrates per day, maximize on fat. Assure sufficient intake of micronutrients.

06

What researchers measure

Primary outcomes

  1. Change in seizure frequency

    All participants record detailed seizure records for 12 weeks prior to the control/diet period. The diet group participants are subsequently treated with modified Atkins diet for 12 weeks, while the control group continue their normal diet and record seizures for another 12 weeks. Seizure records for each participant before and during intervention are compared.

    Time frame: 12 weeks

Secondary outcomes

  1. Change in body weight

    Time frame: 12 weeks

  2. Change in standard 3-hrs EEG

    Time frame: 12 weeks

  3. Change in life quality measured by validated questionnaire

    Time frame: 12 weeks

  4. Change in various blood and serum measures

    Time frame: 12 weeks

  5. Change in executive functions measured with validated questionnaire

    Time frame: 12 weeks

  6. Change in seizure strength and severity measured by validated questionnaire

    Time frame: 12 weeks

07

Study locations

1 site
  • Oslo University Hospital, The national Centre for epilepsy
    Sandvika, Bærum Postterminal 1306, Norway
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Mar 2011 to primary completion in Jun 2017, 75 months.

Of 337 non-industry interventional studies with no phase under Epilepsy, half reached primary completion within 42 months of starting (the median), counting those still running; a quarter within 19 and three quarters within 77. This study's 75 months is above that.

Counting every sponsor, half of 358 studies reached it within 42 months; a quarter within 19 and three quarters within 77.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 7, 2011
First posted
Mar 9, 2011
StartActual
Mar 2011
Primary completionActual
Jun 2017
CompletionActual
Jul 2017
Last update
Sep 19, 2017
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 19, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01311440
Responsible party
Magnhild Kverneland (Registered Nutritionist, Oslo University Hospital) — Principal investigator
First posted
Mar 9, 2011
Start date
Mar 2011
Primary completion
Jun 2017
Completion
Jul 2017
Last update
Sep 19, 2017

Study contacts

Karl Otto Nakken
principal investigator · Oslo University Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Sep 2017. You cannot join it, but the record below documents what was studied.

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