R Observatory: Metrics for SingleArmMRCT version 0.1.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

SingleArmMRCT

0.1.1Package record

Regional Consistency Probability for Single-Arm Multi-Regional Clinical Trials

0packages depend

1.1Kdownloads / year

47.8%test coverage

13/13flavors OK

Overview

About

Maintained by Gosuke HommaCRAN page ↗GitHub ↗Website ↗Issues ↗

Provides functions to calculate and visualise the Regional Consistency Probability (RCP) for single-arm multi-regional clinical trials (MRCTs) using the Effect Retention Approach (ERA). Six endpoint types are supported: continuous, binary, count (negative binomial), time-to-event via hazard ratio, milestone survival, and restricted mean survival time (RMST). For each endpoint, both a closed-form (or semi-analytical) solution and a Monte Carlo simulation approach are implemented. Two consistency evaluation methods are available: Method 1 (effect retention in Region 1 relative to the overall population) and Method 2 (simultaneous positive effect across all regions). Plotting functions generate faceted visualisations of RCP as a function of the regional allocation proportion, overlaying formula and simulation results for direct comparison. The methodology follows the Japanese MHLW guidelines for MRCTs. Abbreviations used: RCP (Regional Consistency Probability), MRCT (Multi-Regional Clinical Trial), RMST (Restricted Mean Survival Time), MHLW (Ministry of Health, Labour and Welfare).

Changes in 0.1.1

Resubmission to CRAN

Added Language: en-GB to DESCRIPTION.
Expanded abbreviations (RCP, MRCT, RMST, MHLW) in DESCRIPTION.
Fixed invalid URL in DESCRIPTION (BugReports and URL fields now point to the correct GitHub repository: gosukehommaEX/SingleArmMRCT).
Wrapped long-running examples for plot_rcp1armRMST() and plot_rcp1armMilestoneSurvival() in \donttest{}.

---

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("SingleArmMRCT", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("gosukehommaEX/SingleArmMRCT")

Development version from gosukehommaEX/SingleArmMRCT. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-singlearmmrct

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-SingleArmMRCT

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-SingleArmMRCT

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 3.6 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-09-08
ERROR12 OK, 1 ERROR2026-09-07
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK4 OK2026-04-02

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.1

READMEYes · 460 wordsVignettesYes · 3 · dynamicNEWSYes · 100% structured · mentions 0.1.1Citation fileNoWebsiteYes · pkgdown

Help pages: 18
Examples that run: 83%10 run in a plain check · 2 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 100%
Documented parameters: 96%
Return-value docs: 100%
Help pages citing references: 17%

Vignettes (3)

How these are measured

Downloads

1.1K

CRAN downloads in the past year

Rank #24,674 · ~3/day · ~92/mo

Releases R versions

Daily download trend is not available in this view yet.

20530 days

47990 days

1.1K1 year

Compare downloads with other packages →

Also on42 r2u

How downloads are counted

Repository

gosukehommaex/singlearmmrct ↗Account: gosukehommaEX

0Stars

0Forks

0Open issues

0Open PRs

0Releases

binaryclinical-trialscontinuousnegative-binomialregional-consistencytime-to-event

Last activity 2026-04-02

Responsiveness

not measured

How these are measured

PracticesBeta

7 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/gosukehommaex/singlearmmrct on 2026-10-21.

Continuous integration (1)

GitHub Actions

Docs source (3)

pkgdown

GitHub Pages site last deployed 2026-04-02 · The repository has a site deploy workflow

pkgdown site last built 2026-04-02

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing SingleArmMRCT adds 17 packages (7 with compiled code, 14 MB of source tarballs). Heaviest: ggplot2 6.0 MB, isoband 1.5 MB, farver 1.2 MB.

Depends (1)

R >= 4.1.0

Imports (2)

statsggplot2

LinkingTo (0)

none

Suggests (3)

testthat knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Gosuke Homma

Author, Maintainer since 0.1.1 (2026)

Releases (1)

R
R 4.6.0 released · 2026-04-24
0.1.1Latest
record
2026-04-01 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-04-01
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.1.0
Download size: 149 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("SingleArmMRCT")

Format

Homma, G. (2026). SingleArmMRCT: Regional Consistency Probability for Single-Arm Multi-Regional Clinical Trials (Version 0.1.1) [Computer software]. https://doi.org/10.32614/CRAN.package.SingleArmMRCT

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for SingleArmMRCT version 0.1.1 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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