NCT02286167

Brief Summary

The primary goal of this study is to assess the feasibility and biologic activity of a modified Atkins-based diet combined with short-term intermittent fasting, a GLioma Atkins-based Diet (GLAD), in patients with central nervous system GBM.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
25

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Nov 2014

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2014

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

November 5, 2014

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 7, 2014

Completed
4.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 3, 2019

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 12, 2019

Completed
Last Updated

March 24, 2026

Status Verified

August 1, 2019

Enrollment Period

4.2 years

First QC Date

November 5, 2014

Last Update Submit

March 19, 2026

Conditions

Keywords

modified-Atkins dietketogenic dietcentral nervous system malignancyglioma

Outcome Measures

Primary Outcomes (1)

  • Feasibility of intermittent modified Atkins diet in patients with GBM assessed by percent of patients able to remain on the diet and achieve nutritional goals

    Percent of patients able to remain on the diet and achieve nutritional goals as defined by cumulative assessment of diet records collected at weeks 4, 6, and 8 with a 60% completion defined as a positive results

    8 weeks per patient

Secondary Outcomes (3)

  • Biologic activity measured by pre- and post-study cerebral glutamate and glutamine concentrations assessed by MRS.

    8 weeks per patient

  • Tolerability assessed by percent of patients who have an adverse reaction of any grade attributed to the diet of possible, probable, or definite

    8 weeks per patient

  • Dietary Activity

    8 weeks per patient

Study Arms (1)

Single arm diet

OTHER

Intermittent, modified Atkins diet

Other: Diet modification

Interventions

All patients will be participate in the intermittent, modified Atkins diet

Single arm diet

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients must have a clinical and histopathologic diagnosis of GBM, have completed \>80% of prescribed concurrent radiation therapy and adjuvant temozolomide without CTCEA grade 3 or 4 toxicity, and be greater than 7 months from the time of completion of concurrent chemoradiotherapy.
  • Karnofsky performance status \>/= 60.
  • Patients must be at least 18 years of age.

You may not qualify if:

  • Patients must be of appropriate mental capacities with sufficient social support so as to be able to complete required study activities (i.e. diet record, etc) and able to provide written informed consent.
  • Patients with a history of a metabolic disorder including documented defect in urea metabolism (including documented history of gout), carnitine deficiency (primary carnitine deficiency, carnitine palmitoyltransferase I or II deficiency, carnitine translocase deficiency), fatty acid metabolism, beta-oxidation defects, pyruvate carboxylase deficiency, mitochondrial function, porphyria, or nephrolithiasis.
  • Severe acute infection.
  • BMI \> 35.0 or BMI \< 20.0.
  • Active bowel obstruction, ileus, or active or remote pancreatitis.
  • Clinically significant heart failure (NYHA \>2), recent myocardial infarction, or symptomatic atrial fibrillation.
  • Clinically significant renal disease (creatinine \>2.0 mg/dL, urea \>100 mg/dL).
  • Clinically significant hepatic dysfunction (alanine or aspartate aminotransferase \>7 times the upper limit of normal).
  • Patients with insulin-dependent diabetes mellitus.
  • Conditions that may increase the risk of the diet or significantly reduce compliance (i.e. cognitive impairment, frank dementia, etc).
  • Other concurrent experimental therapies.
  • Milk allergy.
  • Treatment with the modified Atkins diet (MAD) for any cause within the 9 months prior to study enrollment
  • Patient inability to complete baseline screening 3-day diet record.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

The Johns Hopkins Hospital

Baltimore, Maryland, 21287, United States

Location

Wake Forest School of Medicine

Winston-Salem, North Carolina, 27157, United States

Location

Related Publications (1)

  • Schreck KC, Hsu FC, Berrington A, Henry-Barron B, Vizthum D, Blair L, Kossoff EH, Easter L, Whitlow CT, Barker PB, Cervenka MC, Blakeley JO, Strowd RE. Feasibility and Biological Activity of a Ketogenic/Intermittent-Fasting Diet in Patients With Glioma. Neurology. 2021 Aug 31;97(9):e953-e963. doi: 10.1212/WNL.0000000000012386. Epub 2021 Jul 7.

MeSH Terms

Conditions

GlioblastomaGlioma

Interventions

Diet Therapy

Condition Hierarchy (Ancestors)

AstrocytomaNeoplasms, NeuroepithelialNeuroectodermal TumorsNeoplasms, Germ Cell and EmbryonalNeoplasms by Histologic TypeNeoplasmsNeoplasms, Glandular and EpithelialNeoplasms, Nerve Tissue

Intervention Hierarchy (Ancestors)

Nutrition TherapyTherapeutics

Study Officials

  • Roy E. Strowd, MD

    Wake Forest University Health Sciences

    PRINCIPAL INVESTIGATOR
  • Jaishri O. Blakeley, MD

    Johns Hopkins University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 5, 2014

First Posted

November 7, 2014

Study Start

November 1, 2014

Primary Completion

January 3, 2019

Study Completion

July 12, 2019

Last Updated

March 24, 2026

Record last verified: 2019-08

Locations