NCT05565638

Brief Summary

This is a 4-month randomized trial of a prolonged nightly fasting intervention (PROFAST) in 40 overweight and obese individuals with monoclonal gammopathy of undetermined significance (MGUS), smoldering multiple myeloma (SMM), and smoldering waldenstrom macroglobulinemia (SWM). The purpose of this study is to understand if fasting for a prolonged period of time during the nighttime hours is a strategy to prevent overweight and obese individuals from developing blood cancer. Participants will be randomized into the following two groups:

  • Group A: PROFAST intervention for 4 months
  • Group B: Healthy Lifestyle Control group for 4 months

Trial Health

87
On Track

Trial Health Score

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

Enrollment
23

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

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

First Submitted

Initial submission to the registry

September 22, 2022

Completed
12 days until next milestone

First Posted

Study publicly available on registry

October 4, 2022

Completed
5 months until next milestone

Study Start

First participant enrolled

March 6, 2023

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 4, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 4, 2025

Completed
Last Updated

September 25, 2025

Status Verified

September 1, 2025

Enrollment Period

2.4 years

First QC Date

September 22, 2022

Last Update Submit

September 22, 2025

Conditions

Keywords

Cancer preventionWeight lossSmoldering Waldenstrom Macroglobulinemia(WM)MGUSSmoldering Multiple MyelomaProlonged nightly fastingMultiple Myeloma

Outcome Measures

Primary Outcomes (1)

  • Changes in body composition

    assessed via whole body DXA scans

    baseline to 4-months

Secondary Outcomes (4)

  • M-Protein change by Serum Protein Electrophoresis and Serum Free Light Chain assay

    baseline to 4-months

  • (M-)protein concentrations/light chains change by mass spectrometry

    Baseline to 4-months

  • Changes in bone marrow adiposity

    Baseline to 4-months

  • Changes in plasma metabolites measured by liquid chromatography-mass spectrometry

    Baseline to 4-months

Study Arms (2)

PROLONGED FASTING INTERVENTION

EXPERIMENTAL

The prolonged nightly fasting (PROFAST) intervention involves gradually working up to a 14-hour fast during the nighttime hours. Participants will be supported by means of calls with a health coach during the first 4 weeks of the study. Participants will also be asked to use a text messaging platform to record their first and last meal of the day, and will receive personalized feedback based on the meal times they record via the text messaging system. The text messaging system will be used throughout the duration of the study.

Behavioral: Prolonged Fasting Intervention

EDUCATION CONTROL

ACTIVE COMPARATOR

For participants randomized to the control group, an introductory session with a health coach and educational information will be provided. Participants will also receive one email and one text message per week with tips on healthy living during the 4 months of the study

Behavioral: EDUCATION CONTROL

Interventions

promote a 14-hour fast during the nighttime hours

PROLONGED FASTING INTERVENTION

introductory session with a health coach and educational information will be provided. Participants will also receive one email and one text message per week with tips on healthy living

EDUCATION CONTROL

Eligibility Criteria

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

You may qualify if:

  • BMI \>= 25 kg/m2
  • Documented diagnosis of MGUS or Smoldering MM(SMM) or Smoldering Waldenstrom Macroglobulinemia(WM) via EMR review. \*note: please review case with PI or treating MD if diagnosis is uncertain.
  • At least 18 years of age
  • Currently fasting for \<14 hours per night, as assessed using 24-hour food recalls
  • Owns a cell phone and is comfortable sending and receiving text messages
  • Ability to understand and the willingness to sign a written informed consent document

You may not qualify if:

  • Diagnosis of overt MM or WM
  • Patients diagnosed with another malignancy requiring active therapy
  • Clinical diagnosis of diabetes, which may increase the risk of hypoglycemia with a prolonged fast. Note: patients with diabetes may enroll with consent from MD that manages their clinical care.
  • Any other condition that, in the investigator's judgment, would contraindicate prolonged nightly fasting or otherwise interfere with participation in the trial, including night shift work, night eating syndrome, taking weight loss medication, or participation in another weight loss program

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Dana Farber Cancer Institute

Boston, Massachusetts, 02115, United States

Location

Related Publications (1)

  • Lee DJ, O'Donnell EK, Raje N, Panaroni C, Redd R, Ligibel J, Sears DD, Nadeem O, Ghobrial IM, Marinac CR. Design and Rationale of Prolonged Nightly Fasting for Multiple Myeloma Prevention (PROFAST): Protocol for a Randomized Controlled Pilot Trial. JMIR Res Protoc. 2024 Mar 11;13:e51368. doi: 10.2196/51368.

MeSH Terms

Conditions

Weight LossFastingMultiple MyelomaSmoldering Multiple Myeloma

Condition Hierarchy (Ancestors)

Body Weight ChangesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsFeeding BehaviorBehaviorNeoplasms, Plasma CellNeoplasms by Histologic TypeNeoplasmsHemostatic DisordersVascular DiseasesCardiovascular DiseasesParaproteinemiasBlood Protein DisordersHematologic DiseasesHemic and Lymphatic DiseasesHemorrhagic DisordersLymphoproliferative DisordersImmunoproliferative DisordersImmune System DiseasesPrecancerous ConditionsHypergammaglobulinemia

Study Officials

  • Catherine Marinac, Ph.D

    Dana-Farber Cancer Institute

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

September 22, 2022

First Posted

October 4, 2022

Study Start

March 6, 2023

Primary Completion

August 4, 2025

Study Completion

August 4, 2025

Last Updated

September 25, 2025

Record last verified: 2025-09

Locations