Under construction – not a live service
Sign in
Taking people in United StatesNo phase

Tests a weight loss app and coaching for young people after stem cell transplant

Tests a phone app with coaching to help young people lose weight after transplant.

Plain-language title generated from the registry record
Registry title: A Study to See if an iPhone Weight Management App Can Help Promote Weight Loss in Adolescents and Young Adults After a Stem Cell Transplant

Key facts

Where
Los Angeles, United StatesSee the site

AI summary: who the study is looking for

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for teenagers and young adults who are obese and had a stem cell transplant at least 100 days ago. It tests a weight loss app with coaching.

Age
13 Years to 30 Years
Sex
All sexes can join.
Disease stage
Obese, with a body mass index (BMI) at or above the 85th percentile for age and gender.
Earlier treatment
A stem cell transplant of any type (HSCT), at least 100 days ago.

Main reasons for not taking part

  • Less than 100 days since the transplant
  • BMI not in the obese range
  • Cannot read English, because the app is only in English
  • Daily functioning that would seriously get in the way of taking part (decided case by case)

Read by machine on 12 November 2026.

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 13 and 30 years old?

Source: NCT04453072, who can take part

Where in United States

  • UCLA / Jonsson Comprehensive Cancer CenterLos Angeles, United StatesContact: Theodore B. MooreTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Trial details

Who runs it
Jonsson Comprehensive Cancer Center
Trial code
NCT04453072
Record updated
11 May 2026
Original description
This early phase I trial studies how well a behavioral weight loss intervention consisting of a smartphone application and coaching works for the promotion of weight loss in adolescents and young adults after a stem cell transplant. This study may help researchers learn more about how adolescents and young adults can lose weight and develop healthy eating habits.Read full original descriptionShow less

Behavioral Weight Loss Intervention Utilizing Mobile Health Technology in Hematopoietic Stem Cell Transplant Patients (BWL001)

This early phase I trial studies how well a behavioral weight loss intervention consisting of a smartphone application and coaching works for the promotion of weight loss in adolescents and young adults after a stem cell transplant. This study may help researchers learn more about how adolescents and young adults can lose weight and develop healthy eating habits.

Inclusion: Patients with a history of HSCT of any type, at least 100 days post-transplant at initial consultation of the study, will be eligible for the study; Patients must classify as obese, represented as body mass index (BMI) >= 85th percentile for age and gender; Patients must also be able to read English since the app intervention is only available in English form; No patients will be excluded for any specific underlying medical condition, but decisions will be made on a case by case basis if a patient's functioning is deemed to significantly interfere with intervention participation; PARENT:; His/her child meets all inclusion criteria; >= 18 years of age; Can speak English.

Exclusion: Patients who are < 100 days post-transplant at initial consultation will not be eligible for the study, but may become eligible if they are > 100 days post-transplant at their next consultation that falls within the enrollment window; Patients whose BMI does not fall under the obese category will be excluded.

ClinicalTrials.gov NCT04453072